[gcc r11-7271] c++: Macros need to be GTY-reachable [PR 99023]
Nathan Sidwell
nathan@gcc.gnu.org
Wed Feb 17 18:47:05 GMT 2021
https://gcc.gnu.org/g:d8889c99aab4b599aa7ceb7079e69a9766171336
commit r11-7271-gd8889c99aab4b599aa7ceb7079e69a9766171336
Author: Nathan Sidwell <nathan@acm.org>
Date: Wed Feb 17 10:43:21 2021 -0800
c++: Macros need to be GTY-reachable [PR 99023]
I'd missed that macros were allocated from GC storage, and that they can
become unattached from an identifier, and therefore not GC-reachable.
And then bad things happen. Fixed by making the module machinery's
reference vector a GC root.
PR c++/99023
gcc/cp/
* module.cc (struct macro_export): Add GTY markers.
(macro_exports): Likewise, us a va_gc Vector.
gcc/testsuite/
* g++.dg/modules/pr99023_a.H: New.
* g++.dg/modules/pr99023_b.H: New.
Diff:
---
gcc/cp/module.cc | 4 +-
gcc/testsuite/g++.dg/modules/pr99023_a.H | 4237 ++++++
gcc/testsuite/g++.dg/modules/pr99023_b.H | 22665 +++++++++++++++++++++++++++++
3 files changed, 26904 insertions(+), 2 deletions(-)
diff --git a/gcc/cp/module.cc b/gcc/cp/module.cc
index 520494f2543..064e57a29c4 100644
--- a/gcc/cp/module.cc
+++ b/gcc/cp/module.cc
@@ -16566,7 +16566,7 @@ module_state::read_define (bytes_in &sec, cpp_reader *reader, bool located) cons
}
/* Exported macro data. */
-struct macro_export {
+struct GTY(()) macro_export {
cpp_macro *def;
location_t undef_loc;
@@ -16731,7 +16731,7 @@ static vec<macro_import, va_heap, vl_embed> *macro_imports;
indexes this array. If the zeroth slot is not for module zero,
there is no export. */
-static vec<macro_export, va_heap, vl_embed> *macro_exports;
+static GTY(()) vec<macro_export, va_gc> *macro_exports;
/* The reachable set of header imports from this TU. */
diff --git a/gcc/testsuite/g++.dg/modules/pr99023_a.H b/gcc/testsuite/g++.dg/modules/pr99023_a.H
new file mode 100644
index 00000000000..0db3f559ff0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/pr99023_a.H
@@ -0,0 +1,4237 @@
+# 0 "./pr99023_a.H"
+// PR c++/99023, ICE
+// { dg-additional-options {-std=c++17 -Wno-pedantic -fmodule-header -fpreprocessed -fdirectives-only --param ggc-min-expand=0} }
+// { dg-module-cmi {,/pr99023_a.H} }
+# 0 "<built-in>"
+#define __STDC__ 1
+# 0 "<built-in>"
+#define __cplusplus 201703L
+# 0 "<built-in>"
+#define __STDC_UTF_16__ 1
+# 0 "<built-in>"
+#define __STDC_UTF_32__ 1
+# 0 "<built-in>"
+#define __STDC_HOSTED__ 1
+# 0 "<built-in>"
+#define __GNUC__ 11
+# 0 "<built-in>"
+#define __GNUC_MINOR__ 0
+# 0 "<built-in>"
+#define __GNUC_PATCHLEVEL__ 0
+# 0 "<built-in>"
+#define __VERSION__ "11.0.0 20210217 (experimental)"
+# 0 "<built-in>"
+#define __ATOMIC_RELAXED 0
+# 0 "<built-in>"
+#define __ATOMIC_SEQ_CST 5
+# 0 "<built-in>"
+#define __ATOMIC_ACQUIRE 2
+# 0 "<built-in>"
+#define __ATOMIC_RELEASE 3
+# 0 "<built-in>"
+#define __ATOMIC_ACQ_REL 4
+# 0 "<built-in>"
+#define __ATOMIC_CONSUME 1
+# 0 "<built-in>"
+#define __FINITE_MATH_ONLY__ 0
+# 0 "<built-in>"
+#define _LP64 1
+# 0 "<built-in>"
+#define __LP64__ 1
+# 0 "<built-in>"
+#define __SIZEOF_INT__ 4
+# 0 "<built-in>"
+#define __SIZEOF_LONG__ 8
+# 0 "<built-in>"
+#define __SIZEOF_LONG_LONG__ 8
+# 0 "<built-in>"
+#define __SIZEOF_SHORT__ 2
+# 0 "<built-in>"
+#define __SIZEOF_FLOAT__ 4
+# 0 "<built-in>"
+#define __SIZEOF_DOUBLE__ 8
+# 0 "<built-in>"
+#define __SIZEOF_LONG_DOUBLE__ 16
+# 0 "<built-in>"
+#define __SIZEOF_SIZE_T__ 8
+# 0 "<built-in>"
+#define __CHAR_BIT__ 8
+# 0 "<built-in>"
+#define __BIGGEST_ALIGNMENT__ 16
+# 0 "<built-in>"
+#define __ORDER_LITTLE_ENDIAN__ 1234
+# 0 "<built-in>"
+#define __ORDER_BIG_ENDIAN__ 4321
+# 0 "<built-in>"
+#define __ORDER_PDP_ENDIAN__ 3412
+# 0 "<built-in>"
+#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
+# 0 "<built-in>"
+#define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__
+# 0 "<built-in>"
+#define __SIZEOF_POINTER__ 8
+# 0 "<built-in>"
+#define __GNUC_EXECUTION_CHARSET_NAME "UTF-8"
+# 0 "<built-in>"
+#define __GNUC_WIDE_EXECUTION_CHARSET_NAME "UTF-32LE"
+# 0 "<built-in>"
+#define __GNUG__ 11
+# 0 "<built-in>"
+#define __SIZE_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __PTRDIFF_TYPE__ long int
+# 0 "<built-in>"
+#define __WCHAR_TYPE__ int
+# 0 "<built-in>"
+#define __WINT_TYPE__ unsigned int
+# 0 "<built-in>"
+#define __INTMAX_TYPE__ long int
+# 0 "<built-in>"
+#define __UINTMAX_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __CHAR16_TYPE__ short unsigned int
+# 0 "<built-in>"
+#define __CHAR32_TYPE__ unsigned int
+# 0 "<built-in>"
+#define __SIG_ATOMIC_TYPE__ int
+# 0 "<built-in>"
+#define __INT8_TYPE__ signed char
+# 0 "<built-in>"
+#define __INT16_TYPE__ short int
+# 0 "<built-in>"
+#define __INT32_TYPE__ int
+# 0 "<built-in>"
+#define __INT64_TYPE__ long int
+# 0 "<built-in>"
+#define __UINT8_TYPE__ unsigned char
+# 0 "<built-in>"
+#define __UINT16_TYPE__ short unsigned int
+# 0 "<built-in>"
+#define __UINT32_TYPE__ unsigned int
+# 0 "<built-in>"
+#define __UINT64_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __INT_LEAST8_TYPE__ signed char
+# 0 "<built-in>"
+#define __INT_LEAST16_TYPE__ short int
+# 0 "<built-in>"
+#define __INT_LEAST32_TYPE__ int
+# 0 "<built-in>"
+#define __INT_LEAST64_TYPE__ long int
+# 0 "<built-in>"
+#define __UINT_LEAST8_TYPE__ unsigned char
+# 0 "<built-in>"
+#define __UINT_LEAST16_TYPE__ short unsigned int
+# 0 "<built-in>"
+#define __UINT_LEAST32_TYPE__ unsigned int
+# 0 "<built-in>"
+#define __UINT_LEAST64_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __INT_FAST8_TYPE__ signed char
+# 0 "<built-in>"
+#define __INT_FAST16_TYPE__ long int
+# 0 "<built-in>"
+#define __INT_FAST32_TYPE__ long int
+# 0 "<built-in>"
+#define __INT_FAST64_TYPE__ long int
+# 0 "<built-in>"
+#define __UINT_FAST8_TYPE__ unsigned char
+# 0 "<built-in>"
+#define __UINT_FAST16_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __UINT_FAST32_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __UINT_FAST64_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __INTPTR_TYPE__ long int
+# 0 "<built-in>"
+#define __UINTPTR_TYPE__ long unsigned int
+# 0 "<built-in>"
+#define __GXX_WEAK__ 1
+# 0 "<built-in>"
+#define __DEPRECATED 1
+# 0 "<built-in>"
+#define __GXX_RTTI 1
+# 0 "<built-in>"
+#define __cpp_rtti 199711L
+# 0 "<built-in>"
+#define __GXX_EXPERIMENTAL_CXX0X__ 1
+# 0 "<built-in>"
+#define __cpp_binary_literals 201304L
+# 0 "<built-in>"
+#define __cpp_hex_float 201603L
+# 0 "<built-in>"
+#define __cpp_runtime_arrays 198712L
+# 0 "<built-in>"
+#define __cpp_raw_strings 200710L
+# 0 "<built-in>"
+#define __cpp_unicode_literals 200710L
+# 0 "<built-in>"
+#define __cpp_user_defined_literals 200809L
+# 0 "<built-in>"
+#define __cpp_lambdas 200907L
+# 0 "<built-in>"
+#define __cpp_decltype 200707L
+# 0 "<built-in>"
+#define __cpp_attributes 200809L
+# 0 "<built-in>"
+#define __cpp_rvalue_reference 200610L
+# 0 "<built-in>"
+#define __cpp_rvalue_references 200610L
+# 0 "<built-in>"
+#define __cpp_variadic_templates 200704L
+# 0 "<built-in>"
+#define __cpp_initializer_lists 200806L
+# 0 "<built-in>"
+#define __cpp_delegating_constructors 200604L
+# 0 "<built-in>"
+#define __cpp_nsdmi 200809L
+# 0 "<built-in>"
+#define __cpp_inheriting_constructors 201511L
+# 0 "<built-in>"
+#define __cpp_ref_qualifiers 200710L
+# 0 "<built-in>"
+#define __cpp_alias_templates 200704L
+# 0 "<built-in>"
+#define __cpp_return_type_deduction 201304L
+# 0 "<built-in>"
+#define __cpp_init_captures 201304L
+# 0 "<built-in>"
+#define __cpp_generic_lambdas 201304L
+# 0 "<built-in>"
+#define __cpp_decltype_auto 201304L
+# 0 "<built-in>"
+#define __cpp_aggregate_nsdmi 201304L
+# 0 "<built-in>"
+#define __cpp_variable_templates 201304L
+# 0 "<built-in>"
+#define __cpp_digit_separators 201309L
+# 0 "<built-in>"
+#define __cpp_unicode_characters 201411L
+# 0 "<built-in>"
+#define __cpp_static_assert 201411L
+# 0 "<built-in>"
+#define __cpp_namespace_attributes 201411L
+# 0 "<built-in>"
+#define __cpp_enumerator_attributes 201411L
+# 0 "<built-in>"
+#define __cpp_nested_namespace_definitions 201411L
+# 0 "<built-in>"
+#define __cpp_fold_expressions 201603L
+# 0 "<built-in>"
+#define __cpp_nontype_template_args 201411L
+# 0 "<built-in>"
+#define __cpp_range_based_for 201603L
+# 0 "<built-in>"
+#define __cpp_constexpr 201603L
+# 0 "<built-in>"
+#define __cpp_if_constexpr 201606L
+# 0 "<built-in>"
+#define __cpp_capture_star_this 201603L
+# 0 "<built-in>"
+#define __cpp_inline_variables 201606L
+# 0 "<built-in>"
+#define __cpp_aggregate_bases 201603L
+# 0 "<built-in>"
+#define __cpp_deduction_guides 201703L
+# 0 "<built-in>"
+#define __cpp_noexcept_function_type 201510L
+# 0 "<built-in>"
+#define __cpp_template_auto 201606L
+# 0 "<built-in>"
+#define __cpp_structured_bindings 201606L
+# 0 "<built-in>"
+#define __cpp_variadic_using 201611L
+# 0 "<built-in>"
+#define __cpp_guaranteed_copy_elision 201606L
+# 0 "<built-in>"
+#define __cpp_nontype_template_parameter_auto 201606L
+# 0 "<built-in>"
+#define __cpp_modules 201810L
+# 0 "<built-in>"
+#define __cpp_sized_deallocation 201309L
+# 0 "<built-in>"
+#define __cpp_aligned_new 201606L
+# 0 "<built-in>"
+#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 16
+# 0 "<built-in>"
+#define __cpp_template_template_args 201611L
+# 0 "<built-in>"
+#define __cpp_threadsafe_static_init 200806L
+# 0 "<built-in>"
+#define __STDCPP_THREADS__ 1
+# 0 "<built-in>"
+#define __EXCEPTIONS 1
+# 0 "<built-in>"
+#define __cpp_exceptions 199711L
+# 0 "<built-in>"
+#define __GXX_ABI_VERSION 1015
+# 0 "<built-in>"
+#define __SCHAR_MAX__ 0x7f
+# 0 "<built-in>"
+#define __SHRT_MAX__ 0x7fff
+# 0 "<built-in>"
+#define __INT_MAX__ 0x7fffffff
+# 0 "<built-in>"
+#define __LONG_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __LONG_LONG_MAX__ 0x7fffffffffffffffLL
+# 0 "<built-in>"
+#define __WCHAR_MAX__ 0x7fffffff
+# 0 "<built-in>"
+#define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1)
+# 0 "<built-in>"
+#define __WINT_MAX__ 0xffffffffU
+# 0 "<built-in>"
+#define __WINT_MIN__ 0U
+# 0 "<built-in>"
+#define __PTRDIFF_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __SIZE_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __SCHAR_WIDTH__ 8
+# 0 "<built-in>"
+#define __SHRT_WIDTH__ 16
+# 0 "<built-in>"
+#define __INT_WIDTH__ 32
+# 0 "<built-in>"
+#define __LONG_WIDTH__ 64
+# 0 "<built-in>"
+#define __LONG_LONG_WIDTH__ 64
+# 0 "<built-in>"
+#define __WCHAR_WIDTH__ 32
+# 0 "<built-in>"
+#define __WINT_WIDTH__ 32
+# 0 "<built-in>"
+#define __PTRDIFF_WIDTH__ 64
+# 0 "<built-in>"
+#define __SIZE_WIDTH__ 64
+# 0 "<built-in>"
+#define __INTMAX_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __INTMAX_C(c) c ## L
+# 0 "<built-in>"
+#define __UINTMAX_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __UINTMAX_C(c) c ## UL
+# 0 "<built-in>"
+#define __INTMAX_WIDTH__ 64
+# 0 "<built-in>"
+#define __SIG_ATOMIC_MAX__ 0x7fffffff
+# 0 "<built-in>"
+#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
+# 0 "<built-in>"
+#define __SIG_ATOMIC_WIDTH__ 32
+# 0 "<built-in>"
+#define __INT8_MAX__ 0x7f
+# 0 "<built-in>"
+#define __INT16_MAX__ 0x7fff
+# 0 "<built-in>"
+#define __INT32_MAX__ 0x7fffffff
+# 0 "<built-in>"
+#define __INT64_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __UINT8_MAX__ 0xff
+# 0 "<built-in>"
+#define __UINT16_MAX__ 0xffff
+# 0 "<built-in>"
+#define __UINT32_MAX__ 0xffffffffU
+# 0 "<built-in>"
+#define __UINT64_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __INT_LEAST8_MAX__ 0x7f
+# 0 "<built-in>"
+#define __INT8_C(c) c
+# 0 "<built-in>"
+#define __INT_LEAST8_WIDTH__ 8
+# 0 "<built-in>"
+#define __INT_LEAST16_MAX__ 0x7fff
+# 0 "<built-in>"
+#define __INT16_C(c) c
+# 0 "<built-in>"
+#define __INT_LEAST16_WIDTH__ 16
+# 0 "<built-in>"
+#define __INT_LEAST32_MAX__ 0x7fffffff
+# 0 "<built-in>"
+#define __INT32_C(c) c
+# 0 "<built-in>"
+#define __INT_LEAST32_WIDTH__ 32
+# 0 "<built-in>"
+#define __INT_LEAST64_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __INT64_C(c) c ## L
+# 0 "<built-in>"
+#define __INT_LEAST64_WIDTH__ 64
+# 0 "<built-in>"
+#define __UINT_LEAST8_MAX__ 0xff
+# 0 "<built-in>"
+#define __UINT8_C(c) c
+# 0 "<built-in>"
+#define __UINT_LEAST16_MAX__ 0xffff
+# 0 "<built-in>"
+#define __UINT16_C(c) c
+# 0 "<built-in>"
+#define __UINT_LEAST32_MAX__ 0xffffffffU
+# 0 "<built-in>"
+#define __UINT32_C(c) c ## U
+# 0 "<built-in>"
+#define __UINT_LEAST64_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __UINT64_C(c) c ## UL
+# 0 "<built-in>"
+#define __INT_FAST8_MAX__ 0x7f
+# 0 "<built-in>"
+#define __INT_FAST8_WIDTH__ 8
+# 0 "<built-in>"
+#define __INT_FAST16_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __INT_FAST16_WIDTH__ 64
+# 0 "<built-in>"
+#define __INT_FAST32_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __INT_FAST32_WIDTH__ 64
+# 0 "<built-in>"
+#define __INT_FAST64_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __INT_FAST64_WIDTH__ 64
+# 0 "<built-in>"
+#define __UINT_FAST8_MAX__ 0xff
+# 0 "<built-in>"
+#define __UINT_FAST16_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __UINT_FAST32_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __UINT_FAST64_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __INTPTR_MAX__ 0x7fffffffffffffffL
+# 0 "<built-in>"
+#define __INTPTR_WIDTH__ 64
+# 0 "<built-in>"
+#define __UINTPTR_MAX__ 0xffffffffffffffffUL
+# 0 "<built-in>"
+#define __GCC_IEC_559 2
+# 0 "<built-in>"
+#define __GCC_IEC_559_COMPLEX 2
+# 0 "<built-in>"
+#define __FLT_EVAL_METHOD__ 0
+# 0 "<built-in>"
+#define __FLT_EVAL_METHOD_TS_18661_3__ 0
+# 0 "<built-in>"
+#define __DEC_EVAL_METHOD__ 2
+# 0 "<built-in>"
+#define __FLT_RADIX__ 2
+# 0 "<built-in>"
+#define __FLT_MANT_DIG__ 24
+# 0 "<built-in>"
+#define __FLT_DIG__ 6
+# 0 "<built-in>"
+#define __FLT_MIN_EXP__ (-125)
+# 0 "<built-in>"
+#define __FLT_MIN_10_EXP__ (-37)
+# 0 "<built-in>"
+#define __FLT_MAX_EXP__ 128
+# 0 "<built-in>"
+#define __FLT_MAX_10_EXP__ 38
+# 0 "<built-in>"
+#define __FLT_DECIMAL_DIG__ 9
+# 0 "<built-in>"
+#define __FLT_MAX__ 3.40282346638528859811704183484516925e+38F
+# 0 "<built-in>"
+#define __FLT_NORM_MAX__ 3.40282346638528859811704183484516925e+38F
+# 0 "<built-in>"
+#define __FLT_MIN__ 1.17549435082228750796873653722224568e-38F
+# 0 "<built-in>"
+#define __FLT_EPSILON__ 1.19209289550781250000000000000000000e-7F
+# 0 "<built-in>"
+#define __FLT_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F
+# 0 "<built-in>"
+#define __FLT_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __FLT_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __FLT_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __FLT_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __DBL_MANT_DIG__ 53
+# 0 "<built-in>"
+#define __DBL_DIG__ 15
+# 0 "<built-in>"
+#define __DBL_MIN_EXP__ (-1021)
+# 0 "<built-in>"
+#define __DBL_MIN_10_EXP__ (-307)
+# 0 "<built-in>"
+#define __DBL_MAX_EXP__ 1024
+# 0 "<built-in>"
+#define __DBL_MAX_10_EXP__ 308
+# 0 "<built-in>"
+#define __DBL_DECIMAL_DIG__ 17
+# 0 "<built-in>"
+#define __DBL_MAX__ double(1.79769313486231570814527423731704357e+308L)
+# 0 "<built-in>"
+#define __DBL_NORM_MAX__ double(1.79769313486231570814527423731704357e+308L)
+# 0 "<built-in>"
+#define __DBL_MIN__ double(2.22507385850720138309023271733240406e-308L)
+# 0 "<built-in>"
+#define __DBL_EPSILON__ double(2.22044604925031308084726333618164062e-16L)
+# 0 "<built-in>"
+#define __DBL_DENORM_MIN__ double(4.94065645841246544176568792868221372e-324L)
+# 0 "<built-in>"
+#define __DBL_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __DBL_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __DBL_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __DBL_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __LDBL_MANT_DIG__ 64
+# 0 "<built-in>"
+#define __LDBL_DIG__ 18
+# 0 "<built-in>"
+#define __LDBL_MIN_EXP__ (-16381)
+# 0 "<built-in>"
+#define __LDBL_MIN_10_EXP__ (-4931)
+# 0 "<built-in>"
+#define __LDBL_MAX_EXP__ 16384
+# 0 "<built-in>"
+#define __LDBL_MAX_10_EXP__ 4932
+# 0 "<built-in>"
+#define __DECIMAL_DIG__ 21
+# 0 "<built-in>"
+#define __LDBL_DECIMAL_DIG__ 21
+# 0 "<built-in>"
+#define __LDBL_MAX__ 1.18973149535723176502126385303097021e+4932L
+# 0 "<built-in>"
+#define __LDBL_NORM_MAX__ 1.18973149535723176502126385303097021e+4932L
+# 0 "<built-in>"
+#define __LDBL_MIN__ 3.36210314311209350626267781732175260e-4932L
+# 0 "<built-in>"
+#define __LDBL_EPSILON__ 1.08420217248550443400745280086994171e-19L
+# 0 "<built-in>"
+#define __LDBL_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951L
+# 0 "<built-in>"
+#define __LDBL_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __LDBL_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __LDBL_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __LDBL_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __FLT32_MANT_DIG__ 24
+# 0 "<built-in>"
+#define __FLT32_DIG__ 6
+# 0 "<built-in>"
+#define __FLT32_MIN_EXP__ (-125)
+# 0 "<built-in>"
+#define __FLT32_MIN_10_EXP__ (-37)
+# 0 "<built-in>"
+#define __FLT32_MAX_EXP__ 128
+# 0 "<built-in>"
+#define __FLT32_MAX_10_EXP__ 38
+# 0 "<built-in>"
+#define __FLT32_DECIMAL_DIG__ 9
+# 0 "<built-in>"
+#define __FLT32_MAX__ 3.40282346638528859811704183484516925e+38F32
+# 0 "<built-in>"
+#define __FLT32_NORM_MAX__ 3.40282346638528859811704183484516925e+38F32
+# 0 "<built-in>"
+#define __FLT32_MIN__ 1.17549435082228750796873653722224568e-38F32
+# 0 "<built-in>"
+#define __FLT32_EPSILON__ 1.19209289550781250000000000000000000e-7F32
+# 0 "<built-in>"
+#define __FLT32_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F32
+# 0 "<built-in>"
+#define __FLT32_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __FLT32_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __FLT32_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __FLT32_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __FLT64_MANT_DIG__ 53
+# 0 "<built-in>"
+#define __FLT64_DIG__ 15
+# 0 "<built-in>"
+#define __FLT64_MIN_EXP__ (-1021)
+# 0 "<built-in>"
+#define __FLT64_MIN_10_EXP__ (-307)
+# 0 "<built-in>"
+#define __FLT64_MAX_EXP__ 1024
+# 0 "<built-in>"
+#define __FLT64_MAX_10_EXP__ 308
+# 0 "<built-in>"
+#define __FLT64_DECIMAL_DIG__ 17
+# 0 "<built-in>"
+#define __FLT64_MAX__ 1.79769313486231570814527423731704357e+308F64
+# 0 "<built-in>"
+#define __FLT64_NORM_MAX__ 1.79769313486231570814527423731704357e+308F64
+# 0 "<built-in>"
+#define __FLT64_MIN__ 2.22507385850720138309023271733240406e-308F64
+# 0 "<built-in>"
+#define __FLT64_EPSILON__ 2.22044604925031308084726333618164062e-16F64
+# 0 "<built-in>"
+#define __FLT64_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F64
+# 0 "<built-in>"
+#define __FLT64_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __FLT64_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __FLT64_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __FLT64_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __FLT128_MANT_DIG__ 113
+# 0 "<built-in>"
+#define __FLT128_DIG__ 33
+# 0 "<built-in>"
+#define __FLT128_MIN_EXP__ (-16381)
+# 0 "<built-in>"
+#define __FLT128_MIN_10_EXP__ (-4931)
+# 0 "<built-in>"
+#define __FLT128_MAX_EXP__ 16384
+# 0 "<built-in>"
+#define __FLT128_MAX_10_EXP__ 4932
+# 0 "<built-in>"
+#define __FLT128_DECIMAL_DIG__ 36
+# 0 "<built-in>"
+#define __FLT128_MAX__ 1.18973149535723176508575932662800702e+4932F128
+# 0 "<built-in>"
+#define __FLT128_NORM_MAX__ 1.18973149535723176508575932662800702e+4932F128
+# 0 "<built-in>"
+#define __FLT128_MIN__ 3.36210314311209350626267781732175260e-4932F128
+# 0 "<built-in>"
+#define __FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34F128
+# 0 "<built-in>"
+#define __FLT128_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966F128
+# 0 "<built-in>"
+#define __FLT128_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __FLT128_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __FLT128_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __FLT128_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __FLT32X_MANT_DIG__ 53
+# 0 "<built-in>"
+#define __FLT32X_DIG__ 15
+# 0 "<built-in>"
+#define __FLT32X_MIN_EXP__ (-1021)
+# 0 "<built-in>"
+#define __FLT32X_MIN_10_EXP__ (-307)
+# 0 "<built-in>"
+#define __FLT32X_MAX_EXP__ 1024
+# 0 "<built-in>"
+#define __FLT32X_MAX_10_EXP__ 308
+# 0 "<built-in>"
+#define __FLT32X_DECIMAL_DIG__ 17
+# 0 "<built-in>"
+#define __FLT32X_MAX__ 1.79769313486231570814527423731704357e+308F32x
+# 0 "<built-in>"
+#define __FLT32X_NORM_MAX__ 1.79769313486231570814527423731704357e+308F32x
+# 0 "<built-in>"
+#define __FLT32X_MIN__ 2.22507385850720138309023271733240406e-308F32x
+# 0 "<built-in>"
+#define __FLT32X_EPSILON__ 2.22044604925031308084726333618164062e-16F32x
+# 0 "<built-in>"
+#define __FLT32X_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F32x
+# 0 "<built-in>"
+#define __FLT32X_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __FLT32X_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __FLT32X_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __FLT32X_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __FLT64X_MANT_DIG__ 64
+# 0 "<built-in>"
+#define __FLT64X_DIG__ 18
+# 0 "<built-in>"
+#define __FLT64X_MIN_EXP__ (-16381)
+# 0 "<built-in>"
+#define __FLT64X_MIN_10_EXP__ (-4931)
+# 0 "<built-in>"
+#define __FLT64X_MAX_EXP__ 16384
+# 0 "<built-in>"
+#define __FLT64X_MAX_10_EXP__ 4932
+# 0 "<built-in>"
+#define __FLT64X_DECIMAL_DIG__ 21
+# 0 "<built-in>"
+#define __FLT64X_MAX__ 1.18973149535723176502126385303097021e+4932F64x
+# 0 "<built-in>"
+#define __FLT64X_NORM_MAX__ 1.18973149535723176502126385303097021e+4932F64x
+# 0 "<built-in>"
+#define __FLT64X_MIN__ 3.36210314311209350626267781732175260e-4932F64x
+# 0 "<built-in>"
+#define __FLT64X_EPSILON__ 1.08420217248550443400745280086994171e-19F64x
+# 0 "<built-in>"
+#define __FLT64X_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951F64x
+# 0 "<built-in>"
+#define __FLT64X_HAS_DENORM__ 1
+# 0 "<built-in>"
+#define __FLT64X_HAS_INFINITY__ 1
+# 0 "<built-in>"
+#define __FLT64X_HAS_QUIET_NAN__ 1
+# 0 "<built-in>"
+#define __FLT64X_IS_IEC_60559__ 2
+# 0 "<built-in>"
+#define __DEC32_MANT_DIG__ 7
+# 0 "<built-in>"
+#define __DEC32_MIN_EXP__ (-94)
+# 0 "<built-in>"
+#define __DEC32_MAX_EXP__ 97
+# 0 "<built-in>"
+#define __DEC32_MIN__ 1E-95DF
+# 0 "<built-in>"
+#define __DEC32_MAX__ 9.999999E96DF
+# 0 "<built-in>"
+#define __DEC32_EPSILON__ 1E-6DF
+# 0 "<built-in>"
+#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
+# 0 "<built-in>"
+#define __DEC64_MANT_DIG__ 16
+# 0 "<built-in>"
+#define __DEC64_MIN_EXP__ (-382)
+# 0 "<built-in>"
+#define __DEC64_MAX_EXP__ 385
+# 0 "<built-in>"
+#define __DEC64_MIN__ 1E-383DD
+# 0 "<built-in>"
+#define __DEC64_MAX__ 9.999999999999999E384DD
+# 0 "<built-in>"
+#define __DEC64_EPSILON__ 1E-15DD
+# 0 "<built-in>"
+#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
+# 0 "<built-in>"
+#define __DEC128_MANT_DIG__ 34
+# 0 "<built-in>"
+#define __DEC128_MIN_EXP__ (-6142)
+# 0 "<built-in>"
+#define __DEC128_MAX_EXP__ 6145
+# 0 "<built-in>"
+#define __DEC128_MIN__ 1E-6143DL
+# 0 "<built-in>"
+#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL
+# 0 "<built-in>"
+#define __DEC128_EPSILON__ 1E-33DL
+# 0 "<built-in>"
+#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
+# 0 "<built-in>"
+#define __REGISTER_PREFIX__
+# 0 "<built-in>"
+#define __USER_LABEL_PREFIX__
+# 0 "<built-in>"
+#define __GNUC_STDC_INLINE__ 1
+# 0 "<built-in>"
+#define __NO_INLINE__ 1
+# 0 "<built-in>"
+#define __STRICT_ANSI__ 1
+# 0 "<built-in>"
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
+# 0 "<built-in>"
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
+# 0 "<built-in>"
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
+# 0 "<built-in>"
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
+# 0 "<built-in>"
+#define __GCC_ATOMIC_BOOL_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_CHAR_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_SHORT_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_INT_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_LONG_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_LLONG_LOCK_FREE 2
+# 0 "<built-in>"
+#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1
+# 0 "<built-in>"
+#define __GCC_ATOMIC_POINTER_LOCK_FREE 2
+# 0 "<built-in>"
+#define __HAVE_SPECULATION_SAFE_VALUE 1
+# 0 "<built-in>"
+#define __GCC_HAVE_DWARF2_CFI_ASM 1
+# 0 "<built-in>"
+#define __PRAGMA_REDEFINE_EXTNAME 1
+# 0 "<built-in>"
+#define __SIZEOF_INT128__ 16
+# 0 "<built-in>"
+#define __SIZEOF_WCHAR_T__ 4
+# 0 "<built-in>"
+#define __SIZEOF_WINT_T__ 4
+# 0 "<built-in>"
+#define __SIZEOF_PTRDIFF_T__ 8
+# 0 "<built-in>"
+#define __amd64 1
+# 0 "<built-in>"
+#define __amd64__ 1
+# 0 "<built-in>"
+#define __x86_64 1
+# 0 "<built-in>"
+#define __x86_64__ 1
+# 0 "<built-in>"
+#define __SIZEOF_FLOAT80__ 16
+# 0 "<built-in>"
+#define __SIZEOF_FLOAT128__ 16
+# 0 "<built-in>"
+#define __ATOMIC_HLE_ACQUIRE 65536
+# 0 "<built-in>"
+#define __ATOMIC_HLE_RELEASE 131072
+# 0 "<built-in>"
+#define __GCC_ASM_FLAG_OUTPUTS__ 1
+# 0 "<built-in>"
+#define __k8 1
+# 0 "<built-in>"
+#define __k8__ 1
+# 0 "<built-in>"
+#define __code_model_small__ 1
+# 0 "<built-in>"
+#define __MMX__ 1
+# 0 "<built-in>"
+#define __SSE__ 1
+# 0 "<built-in>"
+#define __SSE2__ 1
+# 0 "<built-in>"
+#define __FXSR__ 1
+# 0 "<built-in>"
+#define __SSE_MATH__ 1
+# 0 "<built-in>"
+#define __SSE2_MATH__ 1
+# 0 "<built-in>"
+#define __MMX_WITH_SSE__ 1
+# 0 "<built-in>"
+#define __SEG_FS 1
+# 0 "<built-in>"
+#define __SEG_GS 1
+# 0 "<built-in>"
+#define __gnu_linux__ 1
+# 0 "<built-in>"
+#define __linux 1
+# 0 "<built-in>"
+#define __linux__ 1
+# 0 "<built-in>"
+#define __unix 1
+# 0 "<built-in>"
+#define __unix__ 1
+# 0 "<built-in>"
+#define __ELF__ 1
+# 0 "<built-in>"
+#define __DECIMAL_BID_FORMAT__ 1
+# 0 "<command-line>"
+#define _GNU_SOURCE 1
+# 0 "<command-line>"
+# 1 "/usr/include/stdc-predef.h" 1 3 4
+/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _STDC_PREDEF_H 1
+
+/* This header is separate from features.h so that the compiler can
+ include it implicitly at the start of every compilation. It must
+ not itself include <features.h> or any other header that includes
+ <features.h> because the implicit include comes before any feature
+ test macros that may be defined in a source file before it first
+ explicitly includes a system header. GCC knows the name of this
+ header in order to preinclude it. */
+
+/* glibc's intent is to support the IEC 559 math functionality, real
+ and complex. If the GCC (4.9 and later) predefined macros
+ specifying compiler intent are available, use them to determine
+ whether the overall intent is to support these features; otherwise,
+ presume an older compiler has intent to support these features and
+ define these macros by default. */
+
+
+
+#define __STDC_IEC_559__ 1
+
+
+
+
+
+
+
+#define __STDC_IEC_559_COMPLEX__ 1
+
+
+
+
+
+/* wchar_t uses Unicode 10.0.0. Version 10.0 of the Unicode Standard is
+ synchronized with ISO/IEC 10646:2017, fifth edition, plus
+ the following additions from Amendment 1 to the fifth edition:
+ - 56 emoji characters
+ - 285 hentaigana
+ - 3 additional Zanabazar Square characters */
+#define __STDC_ISO_10646__ 201706L
+
+# 0 "<command-line>" 2
+# 1 "../../..//src/libstdc++-v3/libsupc++/initializer_list"
+// std::initializer_list support -*- C++ -*-
+
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file initializer_list
+ * This is a Standard C++ Library header.
+ */
+
+
+#define _INITIALIZER_LIST
+
+
+# 34 "../../..//src/libstdc++-v3/libsupc++/initializer_list" 3
+
+
+
+
+
+#pragma GCC visibility push(default)
+
+# 1 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 1 3
+// Predefined symbols and macros -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/c++config.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{version}
+ */
+
+
+#define _GLIBCXX_CXX_CONFIG_H 1
+
+// The major release number for the GCC release the C++ library belongs to.
+#define _GLIBCXX_RELEASE 11
+
+// The datestamp of the C++ library in compressed ISO date format.
+#define __GLIBCXX__ 20210217
+
+// Macros for various attributes.
+// _GLIBCXX_PURE
+// _GLIBCXX_CONST
+// _GLIBCXX_NORETURN
+// _GLIBCXX_NOTHROW
+// _GLIBCXX_VISIBILITY
+
+#define _GLIBCXX_PURE __attribute__ ((__pure__))
+
+
+
+#define _GLIBCXX_CONST __attribute__ ((__const__))
+
+
+
+#define _GLIBCXX_NORETURN __attribute__ ((__noreturn__))
+
+
+// See below for C++
+
+
+
+
+
+
+// Macros for visibility attributes.
+// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
+// _GLIBCXX_VISIBILITY
+#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY 1
+
+
+#define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V)))
+
+
+
+
+
+
+// Macros for deprecated attributes.
+// _GLIBCXX_USE_DEPRECATED
+// _GLIBCXX_DEPRECATED
+// _GLIBCXX_DEPRECATED_SUGGEST( string-literal )
+// _GLIBCXX11_DEPRECATED
+// _GLIBCXX11_DEPRECATED_SUGGEST( string-literal )
+// _GLIBCXX17_DEPRECATED
+// _GLIBCXX17_DEPRECATED_SUGGEST( string-literal )
+// _GLIBCXX20_DEPRECATED( string-literal )
+// _GLIBCXX20_DEPRECATED_SUGGEST( string-literal )
+
+#define _GLIBCXX_USE_DEPRECATED 1
+
+
+
+#define _GLIBCXX_DEPRECATED __attribute__ ((__deprecated__))
+#define _GLIBCXX_DEPRECATED_SUGGEST(ALT) __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
+
+
+
+
+
+
+
+#define _GLIBCXX11_DEPRECATED _GLIBCXX_DEPRECATED
+#define _GLIBCXX11_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
+
+
+
+
+
+
+#define _GLIBCXX17_DEPRECATED [[__deprecated__]]
+#define _GLIBCXX17_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
+
+
+
+
+
+
+
+
+
+#define _GLIBCXX20_DEPRECATED(MSG)
+#define _GLIBCXX20_DEPRECATED_SUGGEST(ALT)
+
+
+// Macros for ABI tag attributes.
+
+#define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11")))
+
+
+// Macro to warn about unused results.
+
+#define _GLIBCXX_NODISCARD [[__nodiscard__]]
+
+
+
+
+
+
+
+
+// Macro for constexpr, to support in mixed 03/0x mode.
+
+
+#define _GLIBCXX_CONSTEXPR constexpr
+#define _GLIBCXX_USE_CONSTEXPR constexpr
+
+
+
+
+
+
+
+
+#define _GLIBCXX14_CONSTEXPR constexpr
+
+
+
+
+
+
+
+#define _GLIBCXX17_CONSTEXPR constexpr
+
+
+
+
+
+
+
+
+
+#define _GLIBCXX20_CONSTEXPR
+
+
+
+
+
+#define _GLIBCXX17_INLINE inline
+
+
+
+
+
+// Macro for noexcept, to support in mixed 03/0x mode.
+
+
+#define _GLIBCXX_NOEXCEPT noexcept
+#define _GLIBCXX_NOEXCEPT_IF(...) noexcept(__VA_ARGS__)
+#define _GLIBCXX_USE_NOEXCEPT noexcept
+#define _GLIBCXX_THROW(_EXC)
+
+
+
+
+
+
+
+
+
+#define _GLIBCXX_NOTHROW _GLIBCXX_USE_NOEXCEPT
+
+
+
+
+#define _GLIBCXX_THROW_OR_ABORT(_EXC) (throw (_EXC))
+
+
+
+
+
+
+#define _GLIBCXX_NOEXCEPT_PARM , bool _NE
+#define _GLIBCXX_NOEXCEPT_QUAL noexcept (_NE)
+
+
+
+
+
+// Macro for extern template, ie controlling template linkage via use
+// of extern keyword on template declaration. As documented in the g++
+// manual, it inhibits all implicit instantiations and is used
+// throughout the library to avoid multiple weak definitions for
+// required types that are already explicitly instantiated in the
+// library binary. This substantially reduces the binary size of
+// resulting executables.
+// Special case: _GLIBCXX_EXTERN_TEMPLATE == -1 disallows extern
+// templates only in basic_string, thus activating its debug-mode
+// checks even at -O0.
+#define _GLIBCXX_EXTERN_TEMPLATE 1
+
+/*
+ Outline of libstdc++ namespaces.
+
+ namespace std
+ {
+ namespace __debug { }
+ namespace __parallel { }
+ namespace __cxx1998 { }
+
+ namespace __detail {
+ namespace __variant { } // C++17
+ }
+
+ namespace rel_ops { }
+
+ namespace tr1
+ {
+ namespace placeholders { }
+ namespace regex_constants { }
+ namespace __detail { }
+ }
+
+ namespace tr2 { }
+
+ namespace decimal { }
+
+ namespace chrono { } // C++11
+ namespace placeholders { } // C++11
+ namespace regex_constants { } // C++11
+ namespace this_thread { } // C++11
+ inline namespace literals { // C++14
+ inline namespace chrono_literals { } // C++14
+ inline namespace complex_literals { } // C++14
+ inline namespace string_literals { } // C++14
+ inline namespace string_view_literals { } // C++17
+ }
+ }
+
+ namespace abi { }
+
+ namespace __gnu_cxx
+ {
+ namespace __detail { }
+ }
+
+ For full details see:
+ http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html
+*/
+namespace std
+{
+ typedef __SIZE_TYPE__ size_t;
+ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+
+
+ typedef decltype(nullptr) nullptr_t;
+
+}
+
+#define _GLIBCXX_USE_DUAL_ABI 1
+
+
+
+
+
+
+
+#define _GLIBCXX_USE_CXX11_ABI 1
+
+
+
+namespace std
+{
+ inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
+}
+namespace __gnu_cxx
+{
+ inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
+}
+#define _GLIBCXX_NAMESPACE_CXX11 __cxx11::
+#define _GLIBCXX_BEGIN_NAMESPACE_CXX11 namespace __cxx11 {
+#define _GLIBCXX_END_NAMESPACE_CXX11 }
+#define _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_ABI_TAG_CXX11
+
+
+
+
+
+
+
+// Defined if inline namespaces are used for versioning.
+#define _GLIBCXX_INLINE_VERSION 0
+
+// Inline namespace for symbol versioning.
+# 350 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 3
+#define _GLIBCXX_BEGIN_NAMESPACE_VERSION
+#define _GLIBCXX_END_NAMESPACE_VERSION
+
+
+// Inline namespaces for special modes: debug, parallel.
+# 392 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 3
+
+// Macros for namespace scope. Either namespace std:: or the name
+// of some nested namespace within it corresponding to the active mode.
+// _GLIBCXX_STD_A
+// _GLIBCXX_STD_C
+//
+// Macros for opening/closing conditional namespaces.
+// _GLIBCXX_BEGIN_NAMESPACE_ALGO
+// _GLIBCXX_END_NAMESPACE_ALGO
+// _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
+// _GLIBCXX_END_NAMESPACE_CONTAINER
+
+
+
+
+
+
+#define _GLIBCXX_STD_C std
+#define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
+#define _GLIBCXX_END_NAMESPACE_CONTAINER
+
+
+
+
+
+
+
+
+#define _GLIBCXX_STD_A std
+#define _GLIBCXX_BEGIN_NAMESPACE_ALGO
+#define _GLIBCXX_END_NAMESPACE_ALGO
+
+
+// GLIBCXX_ABI Deprecated
+// Define if compatibility should be provided for -mlong-double-64.
+#undef _GLIBCXX_LONG_DOUBLE_COMPAT
+// Define if compatibility should be provided for alternative 128-bit long
+// double formats.
+#undef _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT
+
+// Inline namespaces for long double 128 modes.
+# 449 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 3
+
+# 459 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 3
+#define _GLIBCXX_NAMESPACE_LDBL
+#define _GLIBCXX_BEGIN_NAMESPACE_LDBL
+#define _GLIBCXX_END_NAMESPACE_LDBL
+
+
+
+#define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_CXX11
+#define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_CXX11
+#define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_CXX11
+
+
+
+
+
+
+
+
+// Debug Mode implies checking assertions.
+
+
+
+
+// Disable std::string explicit instantiation declarations in order to assert.
+
+
+
+
+
+// Assert.
+# 509 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 3
+
+
+
+
+#define __glibcxx_assert_2(_Condition)
+
+
+// Macros for race detectors.
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) and
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) should be used to explain
+// atomic (lock-free) synchronization to race detectors:
+// the race detector will infer a happens-before arc from the former to the
+// latter when they share the same argument pointer.
+//
+// The most frequent use case for these macros (and the only case in the
+// current implementation of the library) is atomic reference counting:
+// void _M_remove_reference()
+// {
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount);
+// if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, -1) <= 0)
+// {
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount);
+// _M_destroy(__a);
+// }
+// }
+// The annotations in this example tell the race detector that all memory
+// accesses occurred when the refcount was positive do not race with
+// memory accesses which occurred after the refcount became zero.
+
+#define _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A)
+
+
+#define _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A)
+
+
+// Macros for C linkage: define extern "C" linkage only when using C++.
+#define _GLIBCXX_BEGIN_EXTERN_C extern "C" {
+#define _GLIBCXX_END_EXTERN_C }
+
+#define _GLIBCXX_USE_ALLOCATOR_NEW 1
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+// First includes.
+
+// Pick up any OS-specific definitions.
+# 1 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/os_defines.h" 1 3
+// Specific definitions for GNU/Linux -*- C++ -*-
+
+// Copyright (C) 2000-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/os_defines.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+
+#define _GLIBCXX_OS_DEFINES 1
+
+// System-specific #define, typedefs, corrections, etc, go here. This
+// file will come before all others.
+
+// This keeps isanum, et al from being propagated as macros.
+#define __NO_CTYPE 1
+
+# 1 "/usr/include/features.h" 1 3 4
+/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _FEATURES_H 1
+
+/* These are defined by the user (or the compiler)
+ to specify the desired environment:
+
+ __STRICT_ANSI__ ISO Standard C.
+ _ISOC99_SOURCE Extensions to ISO C89 from ISO C99.
+ _ISOC11_SOURCE Extensions to ISO C99 from ISO C11.
+ __STDC_WANT_LIB_EXT2__
+ Extensions to ISO C99 from TR 27431-2:2010.
+ __STDC_WANT_IEC_60559_BFP_EXT__
+ Extensions to ISO C11 from TS 18661-1:2014.
+ __STDC_WANT_IEC_60559_FUNCS_EXT__
+ Extensions to ISO C11 from TS 18661-4:2015.
+ __STDC_WANT_IEC_60559_TYPES_EXT__
+ Extensions to ISO C11 from TS 18661-3:2015.
+
+ _POSIX_SOURCE IEEE Std 1003.1.
+ _POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+ if >=199309L, add IEEE Std 1003.1b-1993;
+ if >=199506L, add IEEE Std 1003.1c-1995;
+ if >=200112L, all of IEEE 1003.1-2004
+ if >=200809L, all of IEEE 1003.1-2008
+ _XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if
+ Single Unix conformance is wanted, to 600 for the
+ sixth revision, to 700 for the seventh revision.
+ _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+ _LARGEFILE_SOURCE Some more functions for correct standard I/O.
+ _LARGEFILE64_SOURCE Additional functionality from LFS for large files.
+ _FILE_OFFSET_BITS=N Select default filesystem interface.
+ _ATFILE_SOURCE Additional *at interfaces.
+ _GNU_SOURCE All of the above, plus GNU extensions.
+ _DEFAULT_SOURCE The default set of features (taking precedence over
+ __STRICT_ANSI__).
+
+ _FORTIFY_SOURCE Add security hardening to many library functions.
+ Set to 1 or 2; 2 performs stricter checks than 1.
+
+ _REENTRANT, _THREAD_SAFE
+ Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+
+ The `-ansi' switch to the GNU C compiler, and standards conformance
+ options such as `-std=c99', define __STRICT_ANSI__. If none of
+ these are defined, or if _DEFAULT_SOURCE is defined, the default is
+ to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+ 200809L, as well as enabling miscellaneous functions from BSD and
+ SVID. If more than one of these are defined, they accumulate. For
+ example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+ give you ISO C, 1003.1, and 1003.2, but nothing else.
+
+ These are defined by this file and are used by the
+ header files to decide what to declare or define:
+
+ __GLIBC_USE (F) Define things from feature set F. This is defined
+ to 1 or 0; the subsequent macros are either defined
+ or undefined, and those tests should be moved to
+ __GLIBC_USE.
+ __USE_ISOC11 Define ISO C11 things.
+ __USE_ISOC99 Define ISO C99 things.
+ __USE_ISOC95 Define ISO C90 AMD1 (C95) things.
+ __USE_ISOCXX11 Define ISO C++11 things.
+ __USE_POSIX Define IEEE Std 1003.1 things.
+ __USE_POSIX2 Define IEEE Std 1003.2 things.
+ __USE_POSIX199309 Define IEEE Std 1003.1, and .1b things.
+ __USE_POSIX199506 Define IEEE Std 1003.1, .1b, .1c and .1i things.
+ __USE_XOPEN Define XPG things.
+ __USE_XOPEN_EXTENDED Define X/Open Unix things.
+ __USE_UNIX98 Define Single Unix V2 things.
+ __USE_XOPEN2K Define XPG6 things.
+ __USE_XOPEN2KXSI Define XPG6 XSI things.
+ __USE_XOPEN2K8 Define XPG7 things.
+ __USE_XOPEN2K8XSI Define XPG7 XSI things.
+ __USE_LARGEFILE Define correct standard I/O things.
+ __USE_LARGEFILE64 Define LFS things with separate names.
+ __USE_FILE_OFFSET64 Define 64bit interface as default.
+ __USE_MISC Define things from 4.3BSD or System V Unix.
+ __USE_ATFILE Define *at interfaces and AT_* constants for them.
+ __USE_GNU Define GNU extensions.
+ __USE_FORTIFY_LEVEL Additional security measures used, according to level.
+
+ The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+ defined by this file unconditionally. `__GNU_LIBRARY__' is provided
+ only for compatibility. All new code should use the other symbols
+ to test for features.
+
+ All macros listed above as possibly being defined by this file are
+ explicitly undefined if they are not explicitly defined.
+ Feature-test macros that are not defined by the user or compiler
+ but are implied by the other feature-test macros defined (or by the
+ lack of any definitions) are defined by the file.
+
+ ISO C feature test macros depend on the definition of the macro
+ when an affected header is included, not when the first system
+ header is included, and so they are handled in
+ <bits/libc-header-start.h>, which does not have a multiple include
+ guard. Feature test macros that can be handled from the first
+ system header included are handled here. */
+
+
+/* Undefine everything, so we get a clean slate. */
+#undef __USE_ISOC11
+#undef __USE_ISOC99
+#undef __USE_ISOC95
+#undef __USE_ISOCXX11
+#undef __USE_POSIX
+#undef __USE_POSIX2
+#undef __USE_POSIX199309
+#undef __USE_POSIX199506
+#undef __USE_XOPEN
+#undef __USE_XOPEN_EXTENDED
+#undef __USE_UNIX98
+#undef __USE_XOPEN2K
+#undef __USE_XOPEN2KXSI
+#undef __USE_XOPEN2K8
+#undef __USE_XOPEN2K8XSI
+#undef __USE_LARGEFILE
+#undef __USE_LARGEFILE64
+#undef __USE_FILE_OFFSET64
+#undef __USE_MISC
+#undef __USE_ATFILE
+#undef __USE_GNU
+#undef __USE_FORTIFY_LEVEL
+#undef __KERNEL_STRICT_NAMES
+#undef __GLIBC_USE_DEPRECATED_GETS
+
+/* Suppress kernel-name space pollution unless user expressedly asks
+ for it. */
+
+#define __KERNEL_STRICT_NAMES
+
+
+/* Convenience macro to test the version of gcc.
+ Use like this:
+ #if __GNUC_PREREQ (2,8)
+ ... code requiring gcc 2.8 or later ...
+ #endif
+ Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+ added in 2.0. */
+
+#define __GNUC_PREREQ(maj,min) ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+
+
+
+
+
+/* Similarly for clang. Features added to GCC after version 4.2 may
+ or may not also be available in clang, and clang's definitions of
+ __GNUC(_MINOR)__ are fixed at 4 and 2 respectively. Not all such
+ features can be queried via __has_extension/__has_feature. */
+
+
+
+
+#define __glibc_clang_prereq(maj,min) 0
+
+
+/* Whether to use feature set F. */
+#define __GLIBC_USE(F) __GLIBC_USE_ ## F
+
+/* _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+ _DEFAULT_SOURCE. If _DEFAULT_SOURCE is present we do not
+ issue a warning; the expectation is that the source is being
+ transitioned to use the new macro. */
+
+
+
+
+
+
+
+/* If _GNU_SOURCE was defined by the user, turn on all the other features. */
+
+#undef _ISOC95_SOURCE
+#define _ISOC95_SOURCE 1
+#undef _ISOC99_SOURCE
+#define _ISOC99_SOURCE 1
+#undef _ISOC11_SOURCE
+#define _ISOC11_SOURCE 1
+#undef _POSIX_SOURCE
+#define _POSIX_SOURCE 1
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#undef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 700
+#undef _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED 1
+#undef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE 1
+#undef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE 1
+#undef _ATFILE_SOURCE
+#define _ATFILE_SOURCE 1
+
+
+/* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+ define _DEFAULT_SOURCE. */
+
+
+
+
+
+#undef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE 1
+
+
+/* This is to enable the ISO C11 extension. */
+
+
+#define __USE_ISOC11 1
+
+
+/* This is to enable the ISO C99 extension. */
+
+
+#define __USE_ISOC99 1
+
+
+/* This is to enable the ISO C90 Amendment 1:1995 extension. */
+
+
+#define __USE_ISOC95 1
+
+
+
+/* This is to enable compatibility for ISO C++17. */
+
+#define __USE_ISOC11 1
+
+/* This is to enable compatibility for ISO C++11.
+ Check the temporary macro for now, too. */
+
+#define __USE_ISOCXX11 1
+#define __USE_ISOC99 1
+
+
+
+/* If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+ is defined, use POSIX.1-2008 (or another version depending on
+ _XOPEN_SOURCE). */
+
+
+
+
+#undef _POSIX_SOURCE
+#define _POSIX_SOURCE 1
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+
+
+# 283 "/usr/include/features.h" 3 4
+
+/* Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+ defined in all multithreaded code. GNU libc has not required this
+ for many years. We now treat them as compatibility synonyms for
+ _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+ comprehensive support for multithreaded code. Using them never
+ lowers the selected level of POSIX conformance, only raises it. */
+
+
+
+
+
+
+
+
+
+
+#define __USE_POSIX 1
+
+
+
+#define __USE_POSIX2 1
+
+
+
+#define __USE_POSIX199309 1
+
+
+
+#define __USE_POSIX199506 1
+
+
+
+#define __USE_XOPEN2K 1
+#undef __USE_ISOC95
+#define __USE_ISOC95 1
+#undef __USE_ISOC99
+#define __USE_ISOC99 1
+
+
+
+#define __USE_XOPEN2K8 1
+#undef _ATFILE_SOURCE
+#define _ATFILE_SOURCE 1
+
+
+
+#define __USE_XOPEN 1
+
+#define __USE_XOPEN_EXTENDED 1
+#define __USE_UNIX98 1
+#undef _LARGEFILE_SOURCE
+#define _LARGEFILE_SOURCE 1
+
+
+#define __USE_XOPEN2K8 1
+#define __USE_XOPEN2K8XSI 1
+
+#define __USE_XOPEN2K 1
+#define __USE_XOPEN2KXSI 1
+#undef __USE_ISOC95
+#define __USE_ISOC95 1
+#undef __USE_ISOC99
+#define __USE_ISOC99 1
+
+
+
+
+
+
+
+
+
+#define __USE_LARGEFILE 1
+
+
+
+#define __USE_LARGEFILE64 1
+
+
+
+
+
+
+
+#define __USE_MISC 1
+
+
+
+#define __USE_ATFILE 1
+
+
+
+#define __USE_GNU 1
+
+
+# 390 "/usr/include/features.h" 3 4
+
+#define __USE_FORTIFY_LEVEL 0
+
+
+/* The function 'gets' existed in C89, but is impossible to use
+ safely. It has been removed from ISO C11 and ISO C++14. Note: for
+ compatibility with various implementations of <cstdio>, this test
+ must consider only the value of __cplusplus when compiling C++. */
+
+#define __GLIBC_USE_DEPRECATED_GETS 0
+
+
+
+
+/* Get definitions of __STDC_* predefined macros, if the compiler has
+ not preincluded this header automatically. */
+
+
+/* This macro indicates that the installed library is the GNU C Library.
+ For historic reasons the value now is 6 and this will stay from now
+ on. The use of this variable is deprecated. Use __GLIBC__ and
+ __GLIBC_MINOR__ now (see below) when you want to test for a specific
+ GNU C library version and use the values in <gnu/lib-names.h> to get
+ the sonames of the shared libraries. */
+#undef __GNU_LIBRARY__
+#define __GNU_LIBRARY__ 6
+
+/* Major and minor version number of the GNU C library package. Use
+ these macros to test for features in specific releases. */
+#define __GLIBC__ 2
+#define __GLIBC_MINOR__ 28
+
+#define __GLIBC_PREREQ(maj,min) ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))
+
+
+/* This is here only because every header file already includes this one. */
+
+
+# 1 "/usr/include/sys/cdefs.h" 1 3 4
+/* Copyright (C) 1992-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _SYS_CDEFS_H 1
+
+/* We are almost always included from features.h. */
+
+
+
+
+/* The GNU libc does not support any K&R compilers or the traditional mode
+ of ISO C compilers anymore. Check for some of the combinations not
+ anymore supported. */
+
+
+
+
+/* Some user header file might have defined this before. */
+#undef __P
+#undef __PMT
+
+
+
+/* All functions, except those with callbacks or those that
+ synchronize memory, are leaf functions. */
+
+#define __LEAF , __leaf__
+#define __LEAF_ATTR __attribute__ ((__leaf__))
+
+
+
+
+
+/* GCC can always grok prototypes. For C++ programs we add throw()
+ to help it optimize the function calls. But this works only with
+ gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions
+ as non-throwing using a function attribute since programs can use
+ the -fexceptions options for C code as well. */
+
+
+
+
+
+
+
+#define __THROW throw ()
+#define __THROWNL throw ()
+#define __NTH(fct) __LEAF_ATTR fct throw ()
+#define __NTHNL(fct) fct throw ()
+
+
+
+
+
+
+
+
+# 87 "/usr/include/sys/cdefs.h" 3 4
+
+/* Compilers that are not clang may object to
+ #if defined __clang__ && __has_extension(...)
+ even though they do not need to evaluate the right-hand side of the &&. */
+
+
+
+#define __glibc_clang_has_extension(ext) 0
+
+
+/* These two macros are not used in glibc anymore. They are kept here
+ only because some other projects expect the macros to be defined. */
+#define __P(args) args
+#define __PMT(args) args
+
+/* For these things, GCC behaves the ANSI way normally,
+ and the non-ANSI way under -traditional. */
+
+#define __CONCAT(x,y) x ## y
+#define __STRING(x) #x
+
+/* This is not a typedef so `const __ptr_t' does the right thing. */
+#define __ptr_t void *
+
+
+/* C++ needs to know that types and declarations are C, not C++. */
+
+#define __BEGIN_DECLS extern "C" {
+#define __END_DECLS }
+
+
+
+
+
+
+/* Fortify support. */
+#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
+#define __bos0(ptr) __builtin_object_size (ptr, 0)
+
+
+#define __warndecl(name,msg) extern void name (void) __attribute__((__warning__ (msg)))
+
+#define __warnattr(msg) __attribute__((__warning__ (msg)))
+#define __errordecl(name,msg) extern void name (void) __attribute__((__error__ (msg)))
+
+
+
+
+
+
+
+/* Support for flexible arrays.
+ Headers that should use flexible arrays only if they're "real"
+ (e.g. only if they won't affect sizeof()) should test
+ #if __glibc_c99_flexarr_available. */
+
+
+
+
+/* GCC 2.97 supports C99 flexible array members as an extension,
+ even when in C89 mode or compiling C++ (any version). */
+#define __flexarr []
+#define __glibc_c99_flexarr_available 1
+# 160 "/usr/include/sys/cdefs.h" 3 4
+
+
+/* __asm__ ("xyz") is used throughout the headers to rename functions
+ at the assembly language level. This is wrapped by the __REDIRECT
+ macro, in order to support compilers that can do this some other
+ way. When compilers don't support asm-names at all, we have to do
+ preprocessor tricks instead (which don't have exactly the right
+ semantics, but it's the best we can do).
+
+ Example:
+ int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid); */
+
+
+
+#define __REDIRECT(name,proto,alias) name proto __asm__ (__ASMNAME (#alias))
+
+#define __REDIRECT_NTH(name,proto,alias) name proto __THROW __asm__ (__ASMNAME (#alias))
+
+#define __REDIRECT_NTHNL(name,proto,alias) name proto __THROWNL __asm__ (__ASMNAME (#alias))
+
+
+
+
+
+
+
+#define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
+#define __ASMNAME2(prefix,cname) __STRING (prefix) cname
+
+/*
+#elif __SOME_OTHER_COMPILER__
+
+# define __REDIRECT(name, proto, alias) name proto; \
+ _Pragma("let " #name " = " #alias)
+*/
+
+
+/* GCC has various useful declarations that can be made with the
+ `__attribute__' syntax. All of the ways we use this do fine if
+ they are omitted for compilers that don't understand it. */
+
+
+
+
+/* At some point during the gcc 2.96 development the `malloc' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings. */
+
+#define __attribute_malloc__ __attribute__ ((__malloc__))
+
+
+
+
+/* Tell the compiler which arguments to an allocation function
+ indicate the size of the allocation. */
+
+#define __attribute_alloc_size__(params) __attribute__ ((__alloc_size__ params))
+
+
+
+
+
+/* At some point during the gcc 2.96 development the `pure' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings. */
+
+#define __attribute_pure__ __attribute__ ((__pure__))
+
+
+
+
+/* This declaration tells the compiler that the value is constant. */
+
+#define __attribute_const__ __attribute__ ((__const__))
+
+
+
+
+/* At some point during the gcc 3.1 development the `used' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings. */
+
+#define __attribute_used__ __attribute__ ((__used__))
+#define __attribute_noinline__ __attribute__ ((__noinline__))
+
+
+
+
+
+/* Since version 3.2, gcc allows marking deprecated functions. */
+
+#define __attribute_deprecated__ __attribute__ ((__deprecated__))
+
+
+
+
+/* Since version 4.5, gcc also allows one to specify the message printed
+ when a deprecated function is used. clang claims to be gcc 4.2, but
+ may also support this feature. */
+
+
+#define __attribute_deprecated_msg__(msg) __attribute__ ((__deprecated__ (msg)))
+
+
+
+
+
+/* At some point during the gcc 2.8 development the `format_arg' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings.
+ If several `format_arg' attributes are given for the same function, in
+ gcc-3.0 and older, all but the last one are ignored. In newer gccs,
+ all designated arguments are considered. */
+
+#define __attribute_format_arg__(x) __attribute__ ((__format_arg__ (x)))
+
+
+
+
+/* At some point during the gcc 2.97 development the `strfmon' format
+ attribute for functions was introduced. We don't want to use it
+ unconditionally (although this would be possible) since it
+ generates warnings. */
+
+#define __attribute_format_strfmon__(a,b) __attribute__ ((__format__ (__strfmon__, a, b)))
+
+
+
+
+
+/* The nonull function attribute allows to mark pointer parameters which
+ must not be NULL. */
+
+#define __nonnull(params) __attribute__ ((__nonnull__ params))
+
+
+
+
+/* If fortification mode, we warn about unused results of certain
+ function calls which can lead to problems. */
+
+#define __attribute_warn_unused_result__ __attribute__ ((__warn_unused_result__))
+
+
+
+
+
+
+
+
+#define __wur
+
+
+/* Forces a function to be always inlined. */
+
+/* The Linux kernel defines __always_inline in stddef.h (283d7573), and
+ it conflicts with this definition. Therefore undefine it first to
+ allow either header to be included first. */
+#undef __always_inline
+#define __always_inline __inline __attribute__ ((__always_inline__))
+
+
+
+
+
+/* Associate error messages with the source location of the call site rather
+ than with the source location inside the function. */
+
+#define __attribute_artificial__ __attribute__ ((__artificial__))
+
+
+
+
+/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+ inline semantics, unless -fgnu89-inline is used. Using __GNUC_STDC_INLINE__
+ or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+ older than 4.3 may define these macros and still not guarantee GNU inlining
+ semantics.
+
+ clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+ semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+ __GNUC_GNU_INLINE__ macro definitions. */
+
+
+
+
+#define __extern_inline extern __inline __attribute__ ((__gnu_inline__))
+#define __extern_always_inline extern __always_inline __attribute__ ((__gnu_inline__))
+
+
+
+
+
+
+
+
+#define __fortify_function __extern_always_inline __attribute_artificial__
+
+
+/* GCC 4.3 and above allow passing all anonymous arguments of an
+ __extern_always_inline function to some other vararg function. */
+
+#define __va_arg_pack() __builtin_va_arg_pack ()
+#define __va_arg_pack_len() __builtin_va_arg_pack_len ()
+
+
+/* It is possible to compile containing GCC extensions even if GCC is
+ run in pedantic mode if the uses are carefully marked using the
+ `__extension__' keyword. But this is not generally available before
+ version 2.8. */
+
+
+
+
+/* __restrict is known in EGCS 1.2 and above. */
+
+
+
+
+
+
+
+
+/* ISO C99 also allows to declare arrays as non-overlapping. The syntax is
+ array_name[restrict]
+ GCC 3.1 supports this. */
+
+
+
+
+#define __restrict_arr
+# 399 "/usr/include/sys/cdefs.h" 3 4
+
+
+
+#define __glibc_unlikely(cond) __builtin_expect ((cond), 0)
+#define __glibc_likely(cond) __builtin_expect ((cond), 1)
+
+
+
+
+
+
+#define __glibc_has_attribute(attr) __has_attribute (attr)
+
+
+
+
+# 424 "/usr/include/sys/cdefs.h" 3 4
+
+
+/* Describes a char array whose address can safely be passed as the first
+ argument to strncpy and strncat, as the char array is not necessarily
+ a NUL-terminated string. */
+#define __attribute_nonstring__ __attribute__ ((__nonstring__))
+
+
+
+
+
+
+
+
+
+
+
+
+# 1 "/usr/include/bits/wordsize.h" 1 3 4
+/* Determine the wordsize from the preprocessor defines. */
+
+
+#define __WORDSIZE 64
+
+
+
+
+
+
+
+#define __WORDSIZE_TIME64_COMPAT32 1
+/* Both x86-64 and x32 use the 64-bit system call interface. */
+#define __SYSCALL_WORDSIZE 64
+# 443 "/usr/include/sys/cdefs.h" 2 3 4
+# 1 "/usr/include/bits/long-double.h" 1 3 4
+/* Properties of long double type. ldbl-96 version.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* long double is distinct from double, so there is nothing to
+ define here. */
+# 444 "/usr/include/sys/cdefs.h" 2 3 4
+
+# 464 "/usr/include/sys/cdefs.h" 3 4
+
+#define __LDBL_REDIR1(name,proto,alias) name proto
+#define __LDBL_REDIR(name,proto) name proto
+#define __LDBL_REDIR1_NTH(name,proto,alias) name proto __THROW
+#define __LDBL_REDIR_NTH(name,proto) name proto __THROW
+#define __LDBL_REDIR_DECL(name)
+
+#define __REDIRECT_LDBL(name,proto,alias) __REDIRECT (name, proto, alias)
+#define __REDIRECT_NTH_LDBL(name,proto,alias) __REDIRECT_NTH (name, proto, alias)
+
+
+
+
+/* __glibc_macro_warning (MESSAGE) issues warning MESSAGE. This is
+ intended for use in preprocessor macros.
+
+ Note: MESSAGE must be a _single_ string; concatenation of string
+ literals is not supported. */
+
+#define __glibc_macro_warning1(message) _Pragma (#message)
+#define __glibc_macro_warning(message) __glibc_macro_warning1 (GCC warning message)
+
+
+
+
+
+/* Generic selection (ISO C11) is a C-only feature, available in GCC
+ since version 4.9. Previous versions do not provide generic
+ selection, even though they might set __STDC_VERSION__ to 201112L,
+ when in -std=c11 mode. Thus, we must check for !defined __GNUC__
+ when testing __STDC_VERSION__ for generic selection support.
+ On the other hand, Clang also defines __GNUC__, so a clang-specific
+ check is required to enable the use of generic selection. */
+
+
+
+
+
+
+
+#define __HAVE_GENERIC_SELECTION 0
+
+
+# 429 "/usr/include/features.h" 2 3 4
+
+
+/* If we don't have __REDIRECT, prototypes will be missing if
+ __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
+
+
+
+
+
+
+
+/* Decide whether we can define 'extern inline' functions in headers. */
+
+
+
+
+
+
+
+/* This is here only because every header file already includes this one.
+ Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+ <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+ that will always return failure (and set errno to ENOSYS). */
+# 1 "/usr/include/gnu/stubs.h" 1 3 4
+/* This file is automatically generated.
+ This file selects the right generated file of `__stub_FUNCTION' macros
+ based on the architecture being compiled for. */
+
+
+
+
+
+
+# 1 "/usr/include/gnu/stubs-64.h" 1 3 4
+/* This file is automatically generated.
+ It defines a symbol `__stub_FUNCTION' for each function
+ in the C library which is a stub, meaning it will fail
+ every time called, usually setting errno to ENOSYS. */
+
+
+
+
+
+#define __stub___compat_bdflush
+#define __stub_chflags
+#define __stub_fattach
+#define __stub_fchflags
+#define __stub_fdetach
+#define __stub_getmsg
+#define __stub_gtty
+#define __stub_lchmod
+#define __stub_putmsg
+#define __stub_revoke
+#define __stub_setlogin
+#define __stub_sigreturn
+#define __stub_sstk
+#define __stub_stty
+# 11 "/usr/include/gnu/stubs.h" 2 3 4
+
+# 453 "/usr/include/features.h" 2 3 4
+
+
+# 40 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/os_defines.h" 2 3
+
+// Provide a declaration for the possibly deprecated gets function, as
+// glibc 2.15 and later does not declare gets for ISO C11 when
+// __GNU_SOURCE is defined.
+
+#undef _GLIBCXX_HAVE_GETS
+
+
+// Glibc 2.23 removed the obsolete isinf and isnan declarations. Check the
+// version dynamically in case it has changed since libstdc++ was configured.
+#define _GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC __GLIBC_PREREQ(2,23)
+
+
+// Since glibc 2.27 pthread_self() is usable without linking to libpthread.
+#define _GLIBCXX_NATIVE_THREAD_ID pthread_self()
+# 63 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/os_defines.h" 3
+
+# 569 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 2 3
+
+// Pick up any CPU-specific definitions.
+# 1 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/cpu_defines.h" 1 3
+// Specific definitions for generic platforms -*- C++ -*-
+
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/cpu_defines.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+
+#define _GLIBCXX_CPU_DEFINES 1
+
+# 572 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 2 3
+
+// If platform uses neither visibility nor psuedo-visibility,
+// specify empty default for namespace annotation macros.
+
+#define _GLIBCXX_PSEUDO_VISIBILITY(V)
+
+
+// Certain function definitions that are meant to be overridable from
+// user code are decorated with this macro. For some targets, this
+// macro causes these definitions to be weak.
+
+#define _GLIBCXX_WEAK_DEFINITION
+
+
+// By default, we assume that __GXX_WEAK__ also means that there is support
+// for declaring functions as weak while not defining such functions. This
+// allows for referring to functions provided by other libraries (e.g.,
+// libitm) without depending on them if the respective features are not used.
+
+#define _GLIBCXX_USE_WEAK_REF __GXX_WEAK__
+
+
+// Conditionally enable annotations for the Transactional Memory TS on C++11.
+// Most of the following conditions are due to limitations in the current
+// implementation.
+
+
+
+
+
+
+
+#define _GLIBCXX_TXN_SAFE
+#define _GLIBCXX_TXN_SAFE_DYN
+
+
+
+// In C++17 mathematical special functions are in namespace std.
+#define _GLIBCXX_USE_STD_SPEC_FUNCS 1
+
+
+
+
+
+// The remainder of the prewritten config is automatic; all the
+// user hooks are listed above.
+
+// Create a boolean flag to be used to determine if --fast-math is set.
+
+
+
+#define _GLIBCXX_FAST_MATH 0
+
+
+// This marks string literals in header files to be extracted for eventual
+// translation. It is primarily used for messages in thrown exceptions; see
+// src/functexcept.cc. We use __N because the more traditional _N is used
+// for something else under certain OSes (see BADNAMES).
+#define __N(msgid) (msgid)
+
+// For example, <windows.h> is known to #define min and max as macros...
+#undef min
+#undef max
+
+// N.B. these _GLIBCXX_USE_C99_XXX macros are defined unconditionally
+// so they should be tested with #if not with #ifdef.
+
+
+#define _GLIBCXX_USE_C99_MATH _GLIBCXX11_USE_C99_MATH
+
+
+#define _GLIBCXX_USE_C99_COMPLEX _GLIBCXX11_USE_C99_COMPLEX
+
+
+#define _GLIBCXX_USE_C99_STDIO _GLIBCXX11_USE_C99_STDIO
+
+
+#define _GLIBCXX_USE_C99_STDLIB _GLIBCXX11_USE_C99_STDLIB
+
+
+#define _GLIBCXX_USE_C99_WCHAR _GLIBCXX11_USE_C99_WCHAR
+
+# 671 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 3
+
+// Unless explicitly specified, enable char8_t extensions only if the core
+// language char8_t feature macro is defined.
+
+
+
+
+
+
+
+
+
+/* Define if __float128 is supported on this host. */
+
+/* For powerpc64 don't use __float128 when it's the same type as long double. */
+
+#define _GLIBCXX_USE_FLOAT128 1
+
+
+
+// Define if float has the IEEE binary32 format.
+
+
+
+#define _GLIBCXX_FLOAT_IS_IEEE_BINARY32 1
+
+
+// Define if double has the IEEE binary64 format.
+
+
+
+#define _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 1
+
+
+
+
+
+
+
+#define _GLIBCXX_HAS_BUILTIN(B) __has_builtin(B)
+
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_IS_SAME 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_LAUNDER 1
+
+
+#undef _GLIBCXX_HAS_BUILTIN
+
+
+#define __glibcxx_assert_1(_Condition) if (__builtin_is_constant_evaluated()) { void __failed_assertion(); if (!bool(_Condition)) __failed_assertion(); } else
+
+
+
+
+
+
+
+
+
+
+
+#define __glibcxx_assert(_Condition) do { __glibcxx_assert_1(_Condition) { __glibcxx_assert_2(_Condition); } } while (false)
+
+
+
+
+
+
+// PSTL configuration
+
+
+// This header is not installed for freestanding:
+
+// Preserved here so we have some idea which version of upstream we've pulled in
+// #define PSTL_VERSION 9000
+
+// For now this defaults to being based on the presence of Thread Building Blocks
+
+#define _GLIBCXX_USE_TBB_PAR_BACKEND __has_include(<tbb/tbb.h>)
+
+// This section will need some rework when a new (default) backend type is added
+
+
+
+#define _PSTL_PAR_BACKEND_SERIAL
+
+
+#define _PSTL_ASSERT(_Condition) __glibcxx_assert(_Condition)
+#define _PSTL_ASSERT_MSG(_Condition,_Message) __glibcxx_assert(_Condition)
+
+# 1 "../x86_64-pc-linux-gnu/libstdc++-v3/include/pstl/pstl_config.h" 1 3
+// -*- C++ -*-
+//===-- pstl_config.h -----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+
+#define _PSTL_CONFIG_H
+
+// The version is XYYZ, where X is major, YY is minor, and Z is patch (i.e. X.YY.Z)
+#define _PSTL_VERSION 12000
+#define _PSTL_VERSION_MAJOR (_PSTL_VERSION / 1000)
+#define _PSTL_VERSION_MINOR ((_PSTL_VERSION % 1000) / 10)
+#define _PSTL_VERSION_PATCH (_PSTL_VERSION % 10)
+
+
+
+
+
+// Check the user-defined macro for warnings
+
+
+
+
+
+#define _PSTL_USAGE_WARNINGS 0
+
+
+// Portability "#pragma" definition
+
+
+
+#define _PSTL_PRAGMA(x) _Pragma(#x)
+
+
+#define _PSTL_STRING_AUX(x) #x
+#define _PSTL_STRING(x) _PSTL_STRING_AUX(x)
+#define _PSTL_STRING_CONCAT(x,y) x #y
+
+
+
+
+
+
+#define _PSTL_HIDE_FROM_ABI_PUSH
+#define _PSTL_HIDE_FROM_ABI_POP
+
+
+// note that when ICC or Clang is in use, _PSTL_GCC_VERSION might not fully match
+// the actual GCC version on the system.
+#define _PSTL_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+
+
+
+
+
+
+// Enable SIMD for compilers that support OpenMP 4.0
+
+
+#define _PSTL_PRAGMA_SIMD _PSTL_PRAGMA(omp simd)
+#define _PSTL_PRAGMA_DECLARE_SIMD _PSTL_PRAGMA(omp declare simd)
+#define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) _PSTL_PRAGMA(omp simd reduction(PRM))
+# 76 "../x86_64-pc-linux-gnu/libstdc++-v3/include/pstl/pstl_config.h" 3
+
+
+
+
+#define _PSTL_PRAGMA_FORCEINLINE
+
+
+
+
+
+
+
+#define _PSTL_PRAGMA_SIMD_SCAN(PRM)
+#define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM)
+#define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM)
+
+
+// Should be defined to 1 for environments with a vendor implementation of C++17 execution policies
+#define _PSTL_CPP17_EXECUTION_POLICIES_PRESENT (_MSC_VER >= 1912)
+
+#define _PSTL_CPP14_2RANGE_MISMATCH_EQUAL_PRESENT (_MSC_VER >= 1900 || __cplusplus >= 201300L || __cpp_lib_robust_nonmodifying_seq_ops == 201304)
+
+#define _PSTL_CPP14_MAKE_REVERSE_ITERATOR_PRESENT (_MSC_VER >= 1900 || __cplusplus >= 201402L || __cpp_lib_make_reverse_iterator == 201402)
+
+#define _PSTL_CPP14_INTEGER_SEQUENCE_PRESENT (_MSC_VER >= 1900 || __cplusplus >= 201402L)
+#define _PSTL_CPP14_VARIABLE_TEMPLATES_PRESENT (!__INTEL_COMPILER || __INTEL_COMPILER >= 1700) && (_MSC_FULL_VER >= 190023918 || __cplusplus >= 201402L)
+
+
+#define _PSTL_EARLYEXIT_PRESENT (__INTEL_COMPILER >= 1800)
+#define _PSTL_MONOTONIC_PRESENT (__INTEL_COMPILER >= 1800)
+
+
+#define _PSTL_UDR_PRESENT 1
+
+
+
+
+#define _PSTL_UDS_PRESENT (__INTEL_COMPILER >= 1900 && __INTEL_COMPILER_BUILD_DATE >= 20180626)
+
+
+
+
+#define _PSTL_PRAGMA_SIMD_EARLYEXIT
+
+
+
+
+
+
+#define _PSTL_PRAGMA_SIMD_ORDERED_MONOTONIC(PRM)
+#define _PSTL_PRAGMA_SIMD_ORDERED_MONOTONIC_2ARGS(PRM1,PRM2)
+
+
+// Declaration of reduction functor, where
+// NAME - the name of the functor
+// OP - type of the callable object with the reduction operation
+// omp_in - refers to the local partial result
+// omp_out - refers to the final value of the combiner operator
+// omp_priv - refers to the private copy of the initial value
+// omp_orig - refers to the original variable to be reduced
+#define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME,OP) _PSTL_PRAGMA(omp declare reduction(NAME:OP : omp_out(omp_in)) initializer(omp_priv = omp_orig))
+
+
+
+
+
+#define _PSTL_PRAGMA_VECTOR_UNALIGNED
+
+
+// Check the user-defined macro to use non-temporal stores
+
+
+
+#define _PSTL_USE_NONTEMPORAL_STORES_IF_ALLOWED
+
+
+
+
+
+#define _PSTL_PRAGMA_LOCATION " [Parallel STL message]: "
+
+
+#define _PSTL_PRAGMA_MESSAGE_IMPL(x) _PSTL_PRAGMA(message(_PSTL_STRING_CONCAT(_PSTL_PRAGMA_LOCATION, x)))
+
+
+
+
+
+#define _PSTL_PRAGMA_MESSAGE(x)
+#define _PSTL_PRAGMA_MESSAGE_POLICIES(x)
+
+
+// broken macros
+#define _PSTL_CPP11_STD_ROTATE_BROKEN ((__GLIBCXX__ && __GLIBCXX__ < 20150716) || (_MSC_VER && _MSC_VER < 1800))
+
+#define _PSTL_ICC_18_OMP_SIMD_BROKEN (__INTEL_COMPILER == 1800)
+
+# 779 "../x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu/bits/c++config.h" 2 3
+
+
+
+// End of prewritten config; the settings discovered at configure time follow.
+/* config.h. Generated from config.h.in by configure. */
+/* config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if you have the `acosf' function. */
+#define _GLIBCXX_HAVE_ACOSF 1
+
+/* Define to 1 if you have the `acosl' function. */
+#define _GLIBCXX_HAVE_ACOSL 1
+
+/* Define to 1 if you have the `aligned_alloc' function. */
+#define _GLIBCXX_HAVE_ALIGNED_ALLOC 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define _GLIBCXX_HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the `asinf' function. */
+#define _GLIBCXX_HAVE_ASINF 1
+
+/* Define to 1 if you have the `asinl' function. */
+#define _GLIBCXX_HAVE_ASINL 1
+
+/* Define to 1 if the target assembler supports .symver directive. */
+#define _GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE 1
+
+/* Define to 1 if you have the `atan2f' function. */
+#define _GLIBCXX_HAVE_ATAN2F 1
+
+/* Define to 1 if you have the `atan2l' function. */
+#define _GLIBCXX_HAVE_ATAN2L 1
+
+/* Define to 1 if you have the `atanf' function. */
+#define _GLIBCXX_HAVE_ATANF 1
+
+/* Define to 1 if you have the `atanl' function. */
+#define _GLIBCXX_HAVE_ATANL 1
+
+/* Defined if shared_ptr reference counting should use atomic operations. */
+#define _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY 1
+
+/* Define to 1 if you have the `at_quick_exit' function. */
+#define _GLIBCXX_HAVE_AT_QUICK_EXIT 1
+
+/* Define to 1 if the target assembler supports thread-local storage. */
+/* #undef _GLIBCXX_HAVE_CC_TLS */
+
+/* Define to 1 if you have the `ceilf' function. */
+#define _GLIBCXX_HAVE_CEILF 1
+
+/* Define to 1 if you have the `ceill' function. */
+#define _GLIBCXX_HAVE_CEILL 1
+
+/* Define to 1 if you have the <complex.h> header file. */
+#define _GLIBCXX_HAVE_COMPLEX_H 1
+
+/* Define to 1 if you have the `cosf' function. */
+#define _GLIBCXX_HAVE_COSF 1
+
+/* Define to 1 if you have the `coshf' function. */
+#define _GLIBCXX_HAVE_COSHF 1
+
+/* Define to 1 if you have the `coshl' function. */
+#define _GLIBCXX_HAVE_COSHL 1
+
+/* Define to 1 if you have the `cosl' function. */
+#define _GLIBCXX_HAVE_COSL 1
+
+/* Define to 1 if you have the <dirent.h> header file. */
+#define _GLIBCXX_HAVE_DIRENT_H 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define _GLIBCXX_HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <endian.h> header file. */
+#define _GLIBCXX_HAVE_ENDIAN_H 1
+
+/* Define to 1 if GCC 4.6 supported std::exception_ptr for the target */
+#define _GLIBCXX_HAVE_EXCEPTION_PTR_SINCE_GCC46 1
+
+/* Define to 1 if you have the <execinfo.h> header file. */
+#define _GLIBCXX_HAVE_EXECINFO_H 1
+
+/* Define to 1 if you have the `expf' function. */
+#define _GLIBCXX_HAVE_EXPF 1
+
+/* Define to 1 if you have the `expl' function. */
+#define _GLIBCXX_HAVE_EXPL 1
+
+/* Define to 1 if you have the `fabsf' function. */
+#define _GLIBCXX_HAVE_FABSF 1
+
+/* Define to 1 if you have the `fabsl' function. */
+#define _GLIBCXX_HAVE_FABSL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define _GLIBCXX_HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the <fenv.h> header file. */
+#define _GLIBCXX_HAVE_FENV_H 1
+
+/* Define to 1 if you have the `finite' function. */
+#define _GLIBCXX_HAVE_FINITE 1
+
+/* Define to 1 if you have the `finitef' function. */
+#define _GLIBCXX_HAVE_FINITEF 1
+
+/* Define to 1 if you have the `finitel' function. */
+#define _GLIBCXX_HAVE_FINITEL 1
+
+/* Define to 1 if you have the <float.h> header file. */
+#define _GLIBCXX_HAVE_FLOAT_H 1
+
+/* Define to 1 if you have the `floorf' function. */
+#define _GLIBCXX_HAVE_FLOORF 1
+
+/* Define to 1 if you have the `floorl' function. */
+#define _GLIBCXX_HAVE_FLOORL 1
+
+/* Define to 1 if you have the `fmodf' function. */
+#define _GLIBCXX_HAVE_FMODF 1
+
+/* Define to 1 if you have the `fmodl' function. */
+#define _GLIBCXX_HAVE_FMODL 1
+
+/* Define to 1 if you have the `fpclass' function. */
+/* #undef _GLIBCXX_HAVE_FPCLASS */
+
+/* Define to 1 if you have the <fp.h> header file. */
+/* #undef _GLIBCXX_HAVE_FP_H */
+
+/* Define to 1 if you have the `frexpf' function. */
+#define _GLIBCXX_HAVE_FREXPF 1
+
+/* Define to 1 if you have the `frexpl' function. */
+#define _GLIBCXX_HAVE_FREXPL 1
+
+/* Define if _Unwind_GetIPInfo is available. */
+#define _GLIBCXX_HAVE_GETIPINFO 1
+
+/* Define if gets is available in <stdio.h> before C++14. */
+#define _GLIBCXX_HAVE_GETS 1
+
+/* Define to 1 if you have the `hypot' function. */
+#define _GLIBCXX_HAVE_HYPOT 1
+
+/* Define to 1 if you have the `hypotf' function. */
+#define _GLIBCXX_HAVE_HYPOTF 1
+
+/* Define to 1 if you have the `hypotl' function. */
+#define _GLIBCXX_HAVE_HYPOTL 1
+
+/* Define if you have the iconv() function. */
+#define _GLIBCXX_HAVE_ICONV 1
+
+/* Define to 1 if you have the <ieeefp.h> header file. */
+/* #undef _GLIBCXX_HAVE_IEEEFP_H */
+
+/* Define if int64_t is available in <stdint.h>. */
+#define _GLIBCXX_HAVE_INT64_T 1
+
+/* Define if int64_t is a long. */
+#define _GLIBCXX_HAVE_INT64_T_LONG 1
+
+/* Define if int64_t is a long long. */
+/* #undef _GLIBCXX_HAVE_INT64_T_LONG_LONG */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define _GLIBCXX_HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `isinf' function. */
+/* #undef _GLIBCXX_HAVE_ISINF */
+
+/* Define to 1 if you have the `isinff' function. */
+#define _GLIBCXX_HAVE_ISINFF 1
+
+/* Define to 1 if you have the `isinfl' function. */
+#define _GLIBCXX_HAVE_ISINFL 1
+
+/* Define to 1 if you have the `isnan' function. */
+/* #undef _GLIBCXX_HAVE_ISNAN */
+
+/* Define to 1 if you have the `isnanf' function. */
+#define _GLIBCXX_HAVE_ISNANF 1
+
+/* Define to 1 if you have the `isnanl' function. */
+#define _GLIBCXX_HAVE_ISNANL 1
+
+/* Defined if iswblank exists. */
+#define _GLIBCXX_HAVE_ISWBLANK 1
+
+/* Define if LC_MESSAGES is available in <locale.h>. */
+#define _GLIBCXX_HAVE_LC_MESSAGES 1
+
+/* Define to 1 if you have the `ldexpf' function. */
+#define _GLIBCXX_HAVE_LDEXPF 1
+
+/* Define to 1 if you have the `ldexpl' function. */
+#define _GLIBCXX_HAVE_LDEXPL 1
+
+/* Define to 1 if you have the <libintl.h> header file. */
+#define _GLIBCXX_HAVE_LIBINTL_H 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_AS 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_DATA 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_FSIZE 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_RSS 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_VMEM 0
+
+/* Define if link is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_LINK 1
+
+/* Define if futex syscall is available. */
+#define _GLIBCXX_HAVE_LINUX_FUTEX 1
+
+/* Define to 1 if you have the <linux/random.h> header file. */
+#define _GLIBCXX_HAVE_LINUX_RANDOM_H 1
+
+/* Define to 1 if you have the <linux/types.h> header file. */
+#define _GLIBCXX_HAVE_LINUX_TYPES_H 1
+
+/* Define to 1 if you have the <locale.h> header file. */
+#define _GLIBCXX_HAVE_LOCALE_H 1
+
+/* Define to 1 if you have the `log10f' function. */
+#define _GLIBCXX_HAVE_LOG10F 1
+
+/* Define to 1 if you have the `log10l' function. */
+#define _GLIBCXX_HAVE_LOG10L 1
+
+/* Define to 1 if you have the `logf' function. */
+#define _GLIBCXX_HAVE_LOGF 1
+
+/* Define to 1 if you have the `logl' function. */
+#define _GLIBCXX_HAVE_LOGL 1
+
+/* Define to 1 if you have the <machine/endian.h> header file. */
+/* #undef _GLIBCXX_HAVE_MACHINE_ENDIAN_H */
+
+/* Define to 1 if you have the <machine/param.h> header file. */
+/* #undef _GLIBCXX_HAVE_MACHINE_PARAM_H */
+
+/* Define if mbstate_t exists in wchar.h. */
+#define _GLIBCXX_HAVE_MBSTATE_T 1
+
+/* Define to 1 if you have the `memalign' function. */
+#define _GLIBCXX_HAVE_MEMALIGN 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define _GLIBCXX_HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `modf' function. */
+#define _GLIBCXX_HAVE_MODF 1
+
+/* Define to 1 if you have the `modff' function. */
+#define _GLIBCXX_HAVE_MODFF 1
+
+/* Define to 1 if you have the `modfl' function. */
+#define _GLIBCXX_HAVE_MODFL 1
+
+/* Define to 1 if you have the <nan.h> header file. */
+/* #undef _GLIBCXX_HAVE_NAN_H */
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define _GLIBCXX_HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define _GLIBCXX_HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define _GLIBCXX_HAVE_NETINET_TCP_H 1
+
+/* Define if <math.h> defines obsolete isinf function. */
+/* #undef _GLIBCXX_HAVE_OBSOLETE_ISINF */
+
+/* Define if <math.h> defines obsolete isnan function. */
+/* #undef _GLIBCXX_HAVE_OBSOLETE_ISNAN */
+
+/* Define if poll is available in <poll.h>. */
+#define _GLIBCXX_HAVE_POLL 1
+
+/* Define to 1 if you have the <poll.h> header file. */
+#define _GLIBCXX_HAVE_POLL_H 1
+
+/* Define to 1 if you have the `posix_memalign' function. */
+#define _GLIBCXX_HAVE_POSIX_MEMALIGN 1
+
+/* Define to 1 if you have the `powf' function. */
+#define _GLIBCXX_HAVE_POWF 1
+
+/* Define to 1 if you have the `powl' function. */
+#define _GLIBCXX_HAVE_POWL 1
+
+/* Define to 1 if you have the `qfpclass' function. */
+/* #undef _GLIBCXX_HAVE_QFPCLASS */
+
+/* Define to 1 if you have the `quick_exit' function. */
+#define _GLIBCXX_HAVE_QUICK_EXIT 1
+
+/* Define if readlink is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_READLINK 1
+
+/* Define to 1 if you have the `setenv' function. */
+#define _GLIBCXX_HAVE_SETENV 1
+
+/* Define to 1 if you have the `sincos' function. */
+#define _GLIBCXX_HAVE_SINCOS 1
+
+/* Define to 1 if you have the `sincosf' function. */
+#define _GLIBCXX_HAVE_SINCOSF 1
+
+/* Define to 1 if you have the `sincosl' function. */
+#define _GLIBCXX_HAVE_SINCOSL 1
+
+/* Define to 1 if you have the `sinf' function. */
+#define _GLIBCXX_HAVE_SINF 1
+
+/* Define to 1 if you have the `sinhf' function. */
+#define _GLIBCXX_HAVE_SINHF 1
+
+/* Define to 1 if you have the `sinhl' function. */
+#define _GLIBCXX_HAVE_SINHL 1
+
+/* Define to 1 if you have the `sinl' function. */
+#define _GLIBCXX_HAVE_SINL 1
+
+/* Defined if sleep exists. */
+/* #undef _GLIBCXX_HAVE_SLEEP */
+
+/* Define to 1 if you have the `sockatmark' function. */
+#define _GLIBCXX_HAVE_SOCKATMARK 1
+
+/* Define to 1 if you have the `sqrtf' function. */
+#define _GLIBCXX_HAVE_SQRTF 1
+
+/* Define to 1 if you have the `sqrtl' function. */
+#define _GLIBCXX_HAVE_SQRTL 1
+
+/* Define to 1 if you have the <stdalign.h> header file. */
+#define _GLIBCXX_HAVE_STDALIGN_H 1
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#define _GLIBCXX_HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define _GLIBCXX_HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define _GLIBCXX_HAVE_STDLIB_H 1
+
+/* Define if strerror_l is available in <string.h>. */
+#define _GLIBCXX_HAVE_STRERROR_L 1
+
+/* Define if strerror_r is available in <string.h>. */
+#define _GLIBCXX_HAVE_STRERROR_R 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define _GLIBCXX_HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define _GLIBCXX_HAVE_STRING_H 1
+
+/* Define to 1 if you have the `strtof' function. */
+#define _GLIBCXX_HAVE_STRTOF 1
+
+/* Define to 1 if you have the `strtold' function. */
+#define _GLIBCXX_HAVE_STRTOLD 1
+
+/* Define to 1 if `d_type' is a member of `struct dirent'. */
+#define _GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE 1
+
+/* Define if strxfrm_l is available in <string.h>. */
+#define _GLIBCXX_HAVE_STRXFRM_L 1
+
+/* Define if symlink is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_SYMLINK 1
+
+/* Define to 1 if the target runtime linker supports binding the same symbol
+ to different versions. */
+#define _GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT 1
+
+/* Define to 1 if you have the <sys/filio.h> header file. */
+/* #undef _GLIBCXX_HAVE_SYS_FILIO_H */
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define _GLIBCXX_HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/ipc.h> header file. */
+#define _GLIBCXX_HAVE_SYS_IPC_H 1
+
+/* Define to 1 if you have the <sys/isa_defs.h> header file. */
+/* #undef _GLIBCXX_HAVE_SYS_ISA_DEFS_H */
+
+/* Define to 1 if you have the <sys/machine.h> header file. */
+/* #undef _GLIBCXX_HAVE_SYS_MACHINE_H */
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define _GLIBCXX_HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+#define _GLIBCXX_HAVE_SYS_RESOURCE_H 1
+
+/* Define to 1 if you have a suitable <sys/sdt.h> header file */
+#define _GLIBCXX_HAVE_SYS_SDT_H 1
+
+/* Define to 1 if you have the <sys/sem.h> header file. */
+#define _GLIBCXX_HAVE_SYS_SEM_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define _GLIBCXX_HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/statvfs.h> header file. */
+#define _GLIBCXX_HAVE_SYS_STATVFS_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define _GLIBCXX_HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/sysinfo.h> header file. */
+#define _GLIBCXX_HAVE_SYS_SYSINFO_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define _GLIBCXX_HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define _GLIBCXX_HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define _GLIBCXX_HAVE_SYS_UIO_H 1
+
+/* Define if S_IFREG is available in <sys/stat.h>. */
+/* #undef _GLIBCXX_HAVE_S_IFREG */
+
+/* Define if S_ISREG is available in <sys/stat.h>. */
+#define _GLIBCXX_HAVE_S_ISREG 1
+
+/* Define to 1 if you have the `tanf' function. */
+#define _GLIBCXX_HAVE_TANF 1
+
+/* Define to 1 if you have the `tanhf' function. */
+#define _GLIBCXX_HAVE_TANHF 1
+
+/* Define to 1 if you have the `tanhl' function. */
+#define _GLIBCXX_HAVE_TANHL 1
+
+/* Define to 1 if you have the `tanl' function. */
+#define _GLIBCXX_HAVE_TANL 1
+
+/* Define to 1 if you have the <tgmath.h> header file. */
+#define _GLIBCXX_HAVE_TGMATH_H 1
+
+/* Define to 1 if you have the `timespec_get' function. */
+#define _GLIBCXX_HAVE_TIMESPEC_GET 1
+
+/* Define to 1 if the target supports thread-local storage. */
+#define _GLIBCXX_HAVE_TLS 1
+
+/* Define if truncate is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_TRUNCATE 1
+
+/* Define to 1 if you have the <uchar.h> header file. */
+#define _GLIBCXX_HAVE_UCHAR_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define _GLIBCXX_HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the `uselocale' function. */
+#define _GLIBCXX_HAVE_USELOCALE 1
+
+/* Defined if usleep exists. */
+/* #undef _GLIBCXX_HAVE_USLEEP */
+
+/* Define to 1 if you have the <utime.h> header file. */
+#define _GLIBCXX_HAVE_UTIME_H 1
+
+/* Defined if vfwscanf exists. */
+#define _GLIBCXX_HAVE_VFWSCANF 1
+
+/* Defined if vswscanf exists. */
+#define _GLIBCXX_HAVE_VSWSCANF 1
+
+/* Defined if vwscanf exists. */
+#define _GLIBCXX_HAVE_VWSCANF 1
+
+/* Define to 1 if you have the <wchar.h> header file. */
+#define _GLIBCXX_HAVE_WCHAR_H 1
+
+/* Defined if wcstof exists. */
+#define _GLIBCXX_HAVE_WCSTOF 1
+
+/* Define to 1 if you have the <wctype.h> header file. */
+#define _GLIBCXX_HAVE_WCTYPE_H 1
+
+/* Defined if Sleep exists. */
+/* #undef _GLIBCXX_HAVE_WIN32_SLEEP */
+
+/* Define if writev is available in <sys/uio.h>. */
+#define _GLIBCXX_HAVE_WRITEV 1
+
+/* Define to 1 if you have the <xlocale.h> header file. */
+/* #undef _GLIBCXX_HAVE_XLOCALE_H */
+
+/* Define to 1 if you have the `_acosf' function. */
+/* #undef _GLIBCXX_HAVE__ACOSF */
+
+/* Define to 1 if you have the `_acosl' function. */
+/* #undef _GLIBCXX_HAVE__ACOSL */
+
+/* Define to 1 if you have the `_aligned_malloc' function. */
+/* #undef _GLIBCXX_HAVE__ALIGNED_MALLOC */
+
+/* Define to 1 if you have the `_asinf' function. */
+/* #undef _GLIBCXX_HAVE__ASINF */
+
+/* Define to 1 if you have the `_asinl' function. */
+/* #undef _GLIBCXX_HAVE__ASINL */
+
+/* Define to 1 if you have the `_atan2f' function. */
+/* #undef _GLIBCXX_HAVE__ATAN2F */
+
+/* Define to 1 if you have the `_atan2l' function. */
+/* #undef _GLIBCXX_HAVE__ATAN2L */
+
+/* Define to 1 if you have the `_atanf' function. */
+/* #undef _GLIBCXX_HAVE__ATANF */
+
+/* Define to 1 if you have the `_atanl' function. */
+/* #undef _GLIBCXX_HAVE__ATANL */
+
+/* Define to 1 if you have the `_ceilf' function. */
+/* #undef _GLIBCXX_HAVE__CEILF */
+
+/* Define to 1 if you have the `_ceill' function. */
+/* #undef _GLIBCXX_HAVE__CEILL */
+
+/* Define to 1 if you have the `_cosf' function. */
+/* #undef _GLIBCXX_HAVE__COSF */
+
+/* Define to 1 if you have the `_coshf' function. */
+/* #undef _GLIBCXX_HAVE__COSHF */
+
+/* Define to 1 if you have the `_coshl' function. */
+/* #undef _GLIBCXX_HAVE__COSHL */
+
+/* Define to 1 if you have the `_cosl' function. */
+/* #undef _GLIBCXX_HAVE__COSL */
+
+/* Define to 1 if you have the `_expf' function. */
+/* #undef _GLIBCXX_HAVE__EXPF */
+
+/* Define to 1 if you have the `_expl' function. */
+/* #undef _GLIBCXX_HAVE__EXPL */
+
+/* Define to 1 if you have the `_fabsf' function. */
+/* #undef _GLIBCXX_HAVE__FABSF */
+
+/* Define to 1 if you have the `_fabsl' function. */
+/* #undef _GLIBCXX_HAVE__FABSL */
+
+/* Define to 1 if you have the `_finite' function. */
+/* #undef _GLIBCXX_HAVE__FINITE */
+
+/* Define to 1 if you have the `_finitef' function. */
+/* #undef _GLIBCXX_HAVE__FINITEF */
+
+/* Define to 1 if you have the `_finitel' function. */
+/* #undef _GLIBCXX_HAVE__FINITEL */
+
+/* Define to 1 if you have the `_floorf' function. */
+/* #undef _GLIBCXX_HAVE__FLOORF */
+
+/* Define to 1 if you have the `_floorl' function. */
+/* #undef _GLIBCXX_HAVE__FLOORL */
+
+/* Define to 1 if you have the `_fmodf' function. */
+/* #undef _GLIBCXX_HAVE__FMODF */
+
+/* Define to 1 if you have the `_fmodl' function. */
+/* #undef _GLIBCXX_HAVE__FMODL */
+
+/* Define to 1 if you have the `_fpclass' function. */
+/* #undef _GLIBCXX_HAVE__FPCLASS */
+
+/* Define to 1 if you have the `_frexpf' function. */
+/* #undef _GLIBCXX_HAVE__FREXPF */
+
+/* Define to 1 if you have the `_frexpl' function. */
+/* #undef _GLIBCXX_HAVE__FREXPL */
+
+/* Define to 1 if you have the `_hypot' function. */
+/* #undef _GLIBCXX_HAVE__HYPOT */
+
+/* Define to 1 if you have the `_hypotf' function. */
+/* #undef _GLIBCXX_HAVE__HYPOTF */
+
+/* Define to 1 if you have the `_hypotl' function. */
+/* #undef _GLIBCXX_HAVE__HYPOTL */
+
+/* Define to 1 if you have the `_isinf' function. */
+/* #undef _GLIBCXX_HAVE__ISINF */
+
+/* Define to 1 if you have the `_isinff' function. */
+/* #undef _GLIBCXX_HAVE__ISINFF */
+
+/* Define to 1 if you have the `_isinfl' function. */
+/* #undef _GLIBCXX_HAVE__ISINFL */
+
+/* Define to 1 if you have the `_isnan' function. */
+/* #undef _GLIBCXX_HAVE__ISNAN */
+
+/* Define to 1 if you have the `_isnanf' function. */
+/* #undef _GLIBCXX_HAVE__ISNANF */
+
+/* Define to 1 if you have the `_isnanl' function. */
+/* #undef _GLIBCXX_HAVE__ISNANL */
+
+/* Define to 1 if you have the `_ldexpf' function. */
+/* #undef _GLIBCXX_HAVE__LDEXPF */
+
+/* Define to 1 if you have the `_ldexpl' function. */
+/* #undef _GLIBCXX_HAVE__LDEXPL */
+
+/* Define to 1 if you have the `_log10f' function. */
+/* #undef _GLIBCXX_HAVE__LOG10F */
+
+/* Define to 1 if you have the `_log10l' function. */
+/* #undef _GLIBCXX_HAVE__LOG10L */
+
+/* Define to 1 if you have the `_logf' function. */
+/* #undef _GLIBCXX_HAVE__LOGF */
+
+/* Define to 1 if you have the `_logl' function. */
+/* #undef _GLIBCXX_HAVE__LOGL */
+
+/* Define to 1 if you have the `_modf' function. */
+/* #undef _GLIBCXX_HAVE__MODF */
+
+/* Define to 1 if you have the `_modff' function. */
+/* #undef _GLIBCXX_HAVE__MODFF */
+
+/* Define to 1 if you have the `_modfl' function. */
+/* #undef _GLIBCXX_HAVE__MODFL */
+
+/* Define to 1 if you have the `_powf' function. */
+/* #undef _GLIBCXX_HAVE__POWF */
+
+/* Define to 1 if you have the `_powl' function. */
+/* #undef _GLIBCXX_HAVE__POWL */
+
+/* Define to 1 if you have the `_qfpclass' function. */
+/* #undef _GLIBCXX_HAVE__QFPCLASS */
+
+/* Define to 1 if you have the `_sincos' function. */
+/* #undef _GLIBCXX_HAVE__SINCOS */
+
+/* Define to 1 if you have the `_sincosf' function. */
+/* #undef _GLIBCXX_HAVE__SINCOSF */
+
+/* Define to 1 if you have the `_sincosl' function. */
+/* #undef _GLIBCXX_HAVE__SINCOSL */
+
+/* Define to 1 if you have the `_sinf' function. */
+/* #undef _GLIBCXX_HAVE__SINF */
+
+/* Define to 1 if you have the `_sinhf' function. */
+/* #undef _GLIBCXX_HAVE__SINHF */
+
+/* Define to 1 if you have the `_sinhl' function. */
+/* #undef _GLIBCXX_HAVE__SINHL */
+
+/* Define to 1 if you have the `_sinl' function. */
+/* #undef _GLIBCXX_HAVE__SINL */
+
+/* Define to 1 if you have the `_sqrtf' function. */
+/* #undef _GLIBCXX_HAVE__SQRTF */
+
+/* Define to 1 if you have the `_sqrtl' function. */
+/* #undef _GLIBCXX_HAVE__SQRTL */
+
+/* Define to 1 if you have the `_tanf' function. */
+/* #undef _GLIBCXX_HAVE__TANF */
+
+/* Define to 1 if you have the `_tanhf' function. */
+/* #undef _GLIBCXX_HAVE__TANHF */
+
+/* Define to 1 if you have the `_tanhl' function. */
+/* #undef _GLIBCXX_HAVE__TANHL */
+
+/* Define to 1 if you have the `_tanl' function. */
+/* #undef _GLIBCXX_HAVE__TANL */
+
+/* Define to 1 if you have the `_wfopen' function. */
+/* #undef _GLIBCXX_HAVE__WFOPEN */
+
+/* Define to 1 if you have the `__cxa_thread_atexit' function. */
+/* #undef _GLIBCXX_HAVE___CXA_THREAD_ATEXIT */
+
+/* Define to 1 if you have the `__cxa_thread_atexit_impl' function. */
+#define _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL 1
+
+/* Define as const if the declaration of iconv() needs const. */
+#define _GLIBCXX_ICONV_CONST
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+ */
+#define LT_OBJDIR ".libs/"
+
+/* Defined if no way to sleep is available. */
+/* #undef NO_SLEEP */
+
+/* Name of package */
+/* #undef _GLIBCXX_PACKAGE */
+
+/* Define to the address where bug reports for this package should be sent. */
+#define _GLIBCXX_PACKAGE_BUGREPORT ""
+
+/* Define to the full name of this package. */
+#define _GLIBCXX_PACKAGE_NAME "package-unused"
+
+/* Define to the full name and version of this package. */
+#define _GLIBCXX_PACKAGE_STRING "package-unused version-unused"
+
+/* Define to the one symbol short name of this package. */
+#define _GLIBCXX_PACKAGE_TARNAME "libstdc++"
+
+/* Define to the home page for this package. */
+#define _GLIBCXX_PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define _GLIBCXX_PACKAGE__GLIBCXX_VERSION "version-unused"
+
+/* The size of `char', as computed by sizeof. */
+/* #undef SIZEOF_CHAR */
+
+/* The size of `int', as computed by sizeof. */
+/* #undef SIZEOF_INT */
+
+/* The size of `long', as computed by sizeof. */
+/* #undef SIZEOF_LONG */
+
+/* The size of `short', as computed by sizeof. */
+/* #undef SIZEOF_SHORT */
+
+/* The size of `void *', as computed by sizeof. */
+/* #undef SIZEOF_VOID_P */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Version number of package */
+/* #undef _GLIBCXX_VERSION */
+
+/* Enable large inode numbers on Mac OS X 10.5. */
+
+#define _GLIBCXX_DARWIN_USE_64_BIT_INODE 1
+
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _GLIBCXX_FILE_OFFSET_BITS */
+
+/* Define if C99 functions in <complex.h> should be used in <complex> for
+ C++11. Using compiler builtins for these functions requires corresponding
+ C99 library functions to be present. */
+#define _GLIBCXX11_USE_C99_COMPLEX 1
+
+/* Define if C99 functions or macros in <math.h> should be imported in <cmath>
+ in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_MATH 1
+
+/* Define if C99 functions or macros in <stdio.h> should be imported in
+ <cstdio> in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_STDIO 1
+
+/* Define if C99 functions or macros in <stdlib.h> should be imported in
+ <cstdlib> in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_STDLIB 1
+
+/* Define if C99 functions or macros in <wchar.h> should be imported in
+ <cwchar> in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_WCHAR 1
+
+/* Define if C99 functions in <complex.h> should be used in <complex> for
+ C++98. Using compiler builtins for these functions requires corresponding
+ C99 library functions to be present. */
+#define _GLIBCXX98_USE_C99_COMPLEX 1
+
+/* Define if C99 functions or macros in <math.h> should be imported in <cmath>
+ in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_MATH 1
+
+/* Define if C99 functions or macros in <stdio.h> should be imported in
+ <cstdio> in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_STDIO 1
+
+/* Define if C99 functions or macros in <stdlib.h> should be imported in
+ <cstdlib> in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_STDLIB 1
+
+/* Define if C99 functions or macros in <wchar.h> should be imported in
+ <cwchar> in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_WCHAR 1
+
+/* Define if the compiler supports C++11 atomics. */
+#define _GLIBCXX_ATOMIC_BUILTINS 1
+
+/* Define to use concept checking code from the boost libraries. */
+/* #undef _GLIBCXX_CONCEPT_CHECKS */
+
+/* Define to 1 if a fully dynamic basic_string is wanted, 0 to disable,
+ undefined for platform defaults */
+#define _GLIBCXX_FULLY_DYNAMIC_STRING 0
+
+/* Define if gthreads library is available. */
+#define _GLIBCXX_HAS_GTHREADS 1
+
+/* Define to 1 if POSIX Semaphores with sem_timedwait are available in
+ <semaphore.h>. */
+#define _GLIBCXX__GLIBCXX_HAVE_POSIX_SEMAPHORE 1
+
+/* Define to 1 if a full hosted library is built, or 0 if freestanding. */
+#define _GLIBCXX_HOSTED 1
+
+/* Define if compatibility should be provided for alternative 128-bit long
+ double formats. */
+
+/* Define if compatibility should be provided for -mlong-double-64. */
+
+/* Define to the letter to which size_t is mangled. */
+#define _GLIBCXX_MANGLE_SIZE_T m
+
+/* Define if C99 llrint and llround functions are missing from <math.h>. */
+/* #undef _GLIBCXX_NO_C99_ROUNDING_FUNCS */
+
+/* Define if ptrdiff_t is int. */
+/* #undef _GLIBCXX_PTRDIFF_T_IS_INT */
+
+/* Define if using setrlimit to set resource limits during "make check" */
+#define _GLIBCXX_RES_LIMITS 1
+
+/* Define if size_t is unsigned int. */
+/* #undef _GLIBCXX_SIZE_T_IS_UINT */
+
+/* Define to the value of the EOF integer constant. */
+#define _GLIBCXX_STDIO_EOF -1
+
+/* Define to the value of the SEEK_CUR integer constant. */
+#define _GLIBCXX_STDIO_SEEK_CUR 1
+
+/* Define to the value of the SEEK_END integer constant. */
+#define _GLIBCXX_STDIO_SEEK_END 2
+
+/* Define to use symbol versioning in the shared library. */
+#define _GLIBCXX_SYMVER 1
+
+/* Define to use darwin versioning in the shared library. */
+/* #undef _GLIBCXX_SYMVER_DARWIN */
+
+/* Define to use GNU versioning in the shared library. */
+#define _GLIBCXX_SYMVER_GNU 1
+
+/* Define to use GNU namespace versioning in the shared library. */
+/* #undef _GLIBCXX_SYMVER_GNU_NAMESPACE */
+
+/* Define to use Sun versioning in the shared library. */
+/* #undef _GLIBCXX_SYMVER_SUN */
+
+/* Define if C11 functions in <uchar.h> should be imported into namespace std
+ in <cuchar>. */
+#define _GLIBCXX_USE_C11_UCHAR_CXX11 1
+
+/* Define if C99 functions or macros from <wchar.h>, <math.h>, <complex.h>,
+ <stdio.h>, and <stdlib.h> can be used or exposed. */
+#define _GLIBCXX_USE_C99 1
+
+/* Define if C99 functions in <complex.h> should be used in <tr1/complex>.
+ Using compiler builtins for these functions requires corresponding C99
+ library functions to be present. */
+#define _GLIBCXX_USE_C99_COMPLEX_TR1 1
+
+/* Define if C99 functions in <ctype.h> should be imported in <tr1/cctype> in
+ namespace std::tr1. */
+#define _GLIBCXX_USE_C99_CTYPE_TR1 1
+
+/* Define if C99 functions in <fenv.h> should be imported in <tr1/cfenv> in
+ namespace std::tr1. */
+#define _GLIBCXX_USE_C99_FENV_TR1 1
+
+/* Define if C99 functions in <inttypes.h> should be imported in
+ <tr1/cinttypes> in namespace std::tr1. */
+#define _GLIBCXX_USE_C99_INTTYPES_TR1 1
+
+/* Define if wchar_t C99 functions in <inttypes.h> should be imported in
+ <tr1/cinttypes> in namespace std::tr1. */
+#define _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1 1
+
+/* Define if C99 functions or macros in <math.h> should be imported in
+ <tr1/cmath> in namespace std::tr1. */
+#define _GLIBCXX_USE_C99_MATH_TR1 1
+
+/* Define if C99 types in <stdint.h> should be imported in <tr1/cstdint> in
+ namespace std::tr1. */
+#define _GLIBCXX_USE_C99_STDINT_TR1 1
+
+/* Defined if clock_gettime syscall has monotonic and realtime clock support.
+ */
+/* #undef _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL */
+
+/* Defined if clock_gettime has monotonic clock support. */
+#define _GLIBCXX_USE_CLOCK_MONOTONIC 1
+
+/* Defined if clock_gettime has realtime clock support. */
+#define _GLIBCXX_USE_CLOCK_REALTIME 1
+
+/* Define if ISO/IEC TR 24733 decimal floating point types are supported on
+ this host. */
+#define _GLIBCXX_USE_DECIMAL_FLOAT 1
+
+/* Define if /dev/random and /dev/urandom are available for
+ std::random_device. */
+#define _GLIBCXX_USE_DEV_RANDOM 1
+
+/* Define if fchmod is available in <sys/stat.h>. */
+#define _GLIBCXX_USE_FCHMOD 1
+
+/* Define if fchmodat is available in <sys/stat.h>. */
+#define _GLIBCXX_USE_FCHMODAT 1
+
+/* Defined if gettimeofday is available. */
+#define _GLIBCXX_USE_GETTIMEOFDAY 1
+
+/* Define if get_nprocs is available in <sys/sysinfo.h>. */
+#define _GLIBCXX_USE_GET_NPROCS 1
+
+/* Define if __int128 is supported on this host. */
+#define _GLIBCXX_USE_INT128 1
+
+/* Define if LFS support is available. */
+#define _GLIBCXX_USE_LFS 1
+
+/* Define if code specialized for long long should be used. */
+#define _GLIBCXX_USE_LONG_LONG 1
+
+/* Define if lstat is available in <sys/stat.h>. */
+#define _GLIBCXX_USE_LSTAT 1
+
+/* Defined if nanosleep is available. */
+#define _GLIBCXX_USE_NANOSLEEP 1
+
+/* Define if NLS translations are to be used. */
+#define _GLIBCXX_USE_NLS 1
+
+/* Define if pthreads_num_processors_np is available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP */
+
+/* Define if pthread_cond_clockwait is available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT */
+
+/* Define if pthread_mutex_clocklock is available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK */
+
+/* Define if pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock are
+ available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK */
+
+/* Define if POSIX read/write locks are available in <gthr.h>. */
+#define _GLIBCXX_USE_PTHREAD_RWLOCK_T 1
+
+/* Define if /dev/random and /dev/urandom are available for the random_device
+ of TR1 (Chapter 5.1). */
+#define _GLIBCXX_USE_RANDOM_TR1 1
+
+/* Define if usable realpath is available in <stdlib.h>. */
+#define _GLIBCXX_USE_REALPATH 1
+
+/* Defined if sched_yield is available. */
+#define _GLIBCXX_USE_SCHED_YIELD 1
+
+/* Define if _SC_NPROCESSORS_ONLN is available in <unistd.h>. */
+#define _GLIBCXX_USE_SC_NPROCESSORS_ONLN 1
+
+/* Define if _SC_NPROC_ONLN is available in <unistd.h>. */
+/* #undef _GLIBCXX_USE_SC_NPROC_ONLN */
+
+/* Define if sendfile is available in <sys/sendfile.h>. */
+#define _GLIBCXX_USE_SENDFILE 1
+
+/* Define to restrict std::__basic_file<> to stdio APIs. */
+/* #undef _GLIBCXX_USE_STDIO_PURE */
+
+/* Define if struct stat has timespec members. */
+#define _GLIBCXX_USE_ST_MTIM 1
+
+/* Define if sysctl(), CTL_HW and HW_NCPU are available in <sys/sysctl.h>. */
+/* #undef _GLIBCXX_USE_SYSCTL_HW_NCPU */
+
+/* Define if obsolescent tmpnam is available in <stdio.h>. */
+#define _GLIBCXX_USE_TMPNAM 1
+
+/* Define if utime is available in <utime.h>. */
+#define _GLIBCXX_USE_UTIME 1
+
+/* Define if utimensat and UTIME_OMIT are available in <sys/stat.h> and
+ AT_FDCWD in <fcntl.h>. */
+#define _GLIBCXX_USE_UTIMENSAT 1
+
+/* Define if code specialized for wchar_t should be used. */
+#define _GLIBCXX_USE_WCHAR_T 1
+
+/* Define to 1 if a verbose library is built, or 0 otherwise. */
+#define _GLIBCXX_VERBOSE 1
+
+/* Defined if as can handle rdrand. */
+#define _GLIBCXX_X86_RDRAND 1
+
+/* Defined if as can handle rdseed. */
+#define _GLIBCXX_X86_RDSEED 1
+
+/* Define to 1 if mutex_timedlock is available. */
+#define _GTHREAD_USE_MUTEX_TIMEDLOCK 1
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _GLIBCXX_LARGE_FILES */
+
+/* Define if all C++11 floating point overloads are available in <math.h>. */
+
+/* #undef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP */
+
+
+/* Define if all C++11 integral type overloads are available in <math.h>. */
+
+/* #undef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT */
+
+
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+
+# 42 "../../..//src/libstdc++-v3/libsupc++/initializer_list" 2 3
+
+namespace std
+{
+ /// initializer_list
+ template<class _E>
+ class initializer_list
+ {
+ public:
+ typedef _E value_type;
+ typedef const _E& reference;
+ typedef const _E& const_reference;
+ typedef size_t size_type;
+ typedef const _E* iterator;
+ typedef const _E* const_iterator;
+
+ private:
+ iterator _M_array;
+ size_type _M_len;
+
+ // The compiler can call a private constructor.
+ constexpr initializer_list(const_iterator __a, size_type __l)
+ : _M_array(__a), _M_len(__l) { }
+
+ public:
+ constexpr initializer_list() noexcept
+ : _M_array(0), _M_len(0) { }
+
+ // Number of elements.
+ constexpr size_type
+ size() const noexcept { return _M_len; }
+
+ // First element.
+ constexpr const_iterator
+ begin() const noexcept { return _M_array; }
+
+ // One past the last element.
+ constexpr const_iterator
+ end() const noexcept { return begin() + size(); }
+ };
+
+ /**
+ * @brief Return an iterator pointing to the first element of
+ * the initializer_list.
+ * @param __ils Initializer list.
+ * @relates initializer_list
+ */
+ template<class _Tp>
+ constexpr const _Tp*
+ begin(initializer_list<_Tp> __ils) noexcept
+ { return __ils.begin(); }
+
+ /**
+ * @brief Return an iterator pointing to one past the last element
+ * of the initializer_list.
+ * @param __ils Initializer list.
+ * @relates initializer_list
+ */
+ template<class _Tp>
+ constexpr const _Tp*
+ end(initializer_list<_Tp> __ils) noexcept
+ { return __ils.end(); }
+}
+
+#pragma GCC visibility pop
+
+
+
diff --git a/gcc/testsuite/g++.dg/modules/pr99023_b.H b/gcc/testsuite/g++.dg/modules/pr99023_b.H
new file mode 100644
index 00000000000..71ac5c22763
--- /dev/null
+++ b/gcc/testsuite/g++.dg/modules/pr99023_b.H
@@ -0,0 +1,22665 @@
+# 0 "pr99023_b.H"
+// PR c++/99023, ICE
+// { dg-additional-options {-std=c++17 -Wno-pedantic -fmodule-header -fpreprocessed -fdirectives-only --param ggc-min-expand=0} }
+// { dg-module-cmi {,/pr99023_b.H} }
+# 0 "<built-in>"
+#define __STDC__ 1
+#define __cplusplus 201703L
+#define __STDC_UTF_16__ 1
+#define __STDC_UTF_32__ 1
+#define __STDC_HOSTED__ 1
+#define __GNUC__ 11
+#define __GNUC_MINOR__ 0
+#define __GNUC_PATCHLEVEL__ 0
+#define __VERSION__ "11.0.0 20210217 (experimental)"
+#define __ATOMIC_RELAXED 0
+#define __ATOMIC_SEQ_CST 5
+#define __ATOMIC_ACQUIRE 2
+#define __ATOMIC_RELEASE 3
+#define __ATOMIC_ACQ_REL 4
+#define __ATOMIC_CONSUME 1
+#define __FINITE_MATH_ONLY__ 0
+#define _LP64 1
+#define __LP64__ 1
+#define __SIZEOF_INT__ 4
+#define __SIZEOF_LONG__ 8
+#define __SIZEOF_LONG_LONG__ 8
+#define __SIZEOF_SHORT__ 2
+#define __SIZEOF_FLOAT__ 4
+#define __SIZEOF_DOUBLE__ 8
+#define __SIZEOF_LONG_DOUBLE__ 16
+#define __SIZEOF_SIZE_T__ 8
+#define __CHAR_BIT__ 8
+#define __BIGGEST_ALIGNMENT__ 16
+#define __ORDER_LITTLE_ENDIAN__ 1234
+#define __ORDER_BIG_ENDIAN__ 4321
+#define __ORDER_PDP_ENDIAN__ 3412
+#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
+#define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__
+#define __SIZEOF_POINTER__ 8
+#define __GNUC_EXECUTION_CHARSET_NAME "UTF-8"
+#define __GNUC_WIDE_EXECUTION_CHARSET_NAME "UTF-32LE"
+#define __GNUG__ 11
+#define __SIZE_TYPE__ long unsigned int
+#define __PTRDIFF_TYPE__ long int
+#define __WCHAR_TYPE__ int
+#define __WINT_TYPE__ unsigned int
+#define __INTMAX_TYPE__ long int
+#define __UINTMAX_TYPE__ long unsigned int
+#define __CHAR16_TYPE__ short unsigned int
+#define __CHAR32_TYPE__ unsigned int
+#define __SIG_ATOMIC_TYPE__ int
+#define __INT8_TYPE__ signed char
+#define __INT16_TYPE__ short int
+#define __INT32_TYPE__ int
+#define __INT64_TYPE__ long int
+#define __UINT8_TYPE__ unsigned char
+#define __UINT16_TYPE__ short unsigned int
+#define __UINT32_TYPE__ unsigned int
+#define __UINT64_TYPE__ long unsigned int
+#define __INT_LEAST8_TYPE__ signed char
+#define __INT_LEAST16_TYPE__ short int
+#define __INT_LEAST32_TYPE__ int
+#define __INT_LEAST64_TYPE__ long int
+#define __UINT_LEAST8_TYPE__ unsigned char
+#define __UINT_LEAST16_TYPE__ short unsigned int
+#define __UINT_LEAST32_TYPE__ unsigned int
+#define __UINT_LEAST64_TYPE__ long unsigned int
+#define __INT_FAST8_TYPE__ signed char
+#define __INT_FAST16_TYPE__ long int
+#define __INT_FAST32_TYPE__ long int
+#define __INT_FAST64_TYPE__ long int
+#define __UINT_FAST8_TYPE__ unsigned char
+#define __UINT_FAST16_TYPE__ long unsigned int
+#define __UINT_FAST32_TYPE__ long unsigned int
+#define __UINT_FAST64_TYPE__ long unsigned int
+#define __INTPTR_TYPE__ long int
+#define __UINTPTR_TYPE__ long unsigned int
+#define __GXX_WEAK__ 1
+#define __DEPRECATED 1
+#define __GXX_RTTI 1
+#define __cpp_rtti 199711L
+#define __GXX_EXPERIMENTAL_CXX0X__ 1
+#define __cpp_binary_literals 201304L
+#define __cpp_hex_float 201603L
+#define __cpp_runtime_arrays 198712L
+#define __cpp_raw_strings 200710L
+#define __cpp_unicode_literals 200710L
+#define __cpp_user_defined_literals 200809L
+#define __cpp_lambdas 200907L
+#define __cpp_decltype 200707L
+#define __cpp_attributes 200809L
+#define __cpp_rvalue_reference 200610L
+#define __cpp_rvalue_references 200610L
+#define __cpp_variadic_templates 200704L
+#define __cpp_initializer_lists 200806L
+#define __cpp_delegating_constructors 200604L
+#define __cpp_nsdmi 200809L
+#define __cpp_inheriting_constructors 201511L
+#define __cpp_ref_qualifiers 200710L
+#define __cpp_alias_templates 200704L
+#define __cpp_return_type_deduction 201304L
+#define __cpp_init_captures 201304L
+#define __cpp_generic_lambdas 201304L
+#define __cpp_decltype_auto 201304L
+#define __cpp_aggregate_nsdmi 201304L
+#define __cpp_variable_templates 201304L
+#define __cpp_digit_separators 201309L
+#define __cpp_unicode_characters 201411L
+#define __cpp_static_assert 201411L
+#define __cpp_namespace_attributes 201411L
+#define __cpp_enumerator_attributes 201411L
+#define __cpp_nested_namespace_definitions 201411L
+#define __cpp_fold_expressions 201603L
+#define __cpp_nontype_template_args 201411L
+#define __cpp_range_based_for 201603L
+#define __cpp_constexpr 201603L
+#define __cpp_if_constexpr 201606L
+#define __cpp_capture_star_this 201603L
+#define __cpp_inline_variables 201606L
+#define __cpp_aggregate_bases 201603L
+#define __cpp_deduction_guides 201703L
+#define __cpp_noexcept_function_type 201510L
+#define __cpp_template_auto 201606L
+#define __cpp_structured_bindings 201606L
+#define __cpp_variadic_using 201611L
+#define __cpp_guaranteed_copy_elision 201606L
+#define __cpp_nontype_template_parameter_auto 201606L
+#define __cpp_modules 201810L
+#define __cpp_sized_deallocation 201309L
+#define __cpp_aligned_new 201606L
+#define __STDCPP_DEFAULT_NEW_ALIGNMENT__ 16
+#define __cpp_template_template_args 201611L
+#define __cpp_threadsafe_static_init 200806L
+#define __STDCPP_THREADS__ 1
+#define __EXCEPTIONS 1
+#define __cpp_exceptions 199711L
+#define __GXX_ABI_VERSION 1015
+#define __SCHAR_MAX__ 0x7f
+#define __SHRT_MAX__ 0x7fff
+#define __INT_MAX__ 0x7fffffff
+#define __LONG_MAX__ 0x7fffffffffffffffL
+#define __LONG_LONG_MAX__ 0x7fffffffffffffffLL
+#define __WCHAR_MAX__ 0x7fffffff
+#define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1)
+#define __WINT_MAX__ 0xffffffffU
+#define __WINT_MIN__ 0U
+#define __PTRDIFF_MAX__ 0x7fffffffffffffffL
+#define __SIZE_MAX__ 0xffffffffffffffffUL
+#define __SCHAR_WIDTH__ 8
+#define __SHRT_WIDTH__ 16
+#define __INT_WIDTH__ 32
+#define __LONG_WIDTH__ 64
+#define __LONG_LONG_WIDTH__ 64
+#define __WCHAR_WIDTH__ 32
+#define __WINT_WIDTH__ 32
+#define __PTRDIFF_WIDTH__ 64
+#define __SIZE_WIDTH__ 64
+#define __INTMAX_MAX__ 0x7fffffffffffffffL
+#define __INTMAX_C(c) c ## L
+#define __UINTMAX_MAX__ 0xffffffffffffffffUL
+#define __UINTMAX_C(c) c ## UL
+#define __INTMAX_WIDTH__ 64
+#define __SIG_ATOMIC_MAX__ 0x7fffffff
+#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
+#define __SIG_ATOMIC_WIDTH__ 32
+#define __INT8_MAX__ 0x7f
+#define __INT16_MAX__ 0x7fff
+#define __INT32_MAX__ 0x7fffffff
+#define __INT64_MAX__ 0x7fffffffffffffffL
+#define __UINT8_MAX__ 0xff
+#define __UINT16_MAX__ 0xffff
+#define __UINT32_MAX__ 0xffffffffU
+#define __UINT64_MAX__ 0xffffffffffffffffUL
+#define __INT_LEAST8_MAX__ 0x7f
+#define __INT8_C(c) c
+#define __INT_LEAST8_WIDTH__ 8
+#define __INT_LEAST16_MAX__ 0x7fff
+#define __INT16_C(c) c
+#define __INT_LEAST16_WIDTH__ 16
+#define __INT_LEAST32_MAX__ 0x7fffffff
+#define __INT32_C(c) c
+#define __INT_LEAST32_WIDTH__ 32
+#define __INT_LEAST64_MAX__ 0x7fffffffffffffffL
+#define __INT64_C(c) c ## L
+#define __INT_LEAST64_WIDTH__ 64
+#define __UINT_LEAST8_MAX__ 0xff
+#define __UINT8_C(c) c
+#define __UINT_LEAST16_MAX__ 0xffff
+#define __UINT16_C(c) c
+#define __UINT_LEAST32_MAX__ 0xffffffffU
+#define __UINT32_C(c) c ## U
+#define __UINT_LEAST64_MAX__ 0xffffffffffffffffUL
+#define __UINT64_C(c) c ## UL
+#define __INT_FAST8_MAX__ 0x7f
+#define __INT_FAST8_WIDTH__ 8
+#define __INT_FAST16_MAX__ 0x7fffffffffffffffL
+#define __INT_FAST16_WIDTH__ 64
+#define __INT_FAST32_MAX__ 0x7fffffffffffffffL
+#define __INT_FAST32_WIDTH__ 64
+#define __INT_FAST64_MAX__ 0x7fffffffffffffffL
+#define __INT_FAST64_WIDTH__ 64
+#define __UINT_FAST8_MAX__ 0xff
+#define __UINT_FAST16_MAX__ 0xffffffffffffffffUL
+#define __UINT_FAST32_MAX__ 0xffffffffffffffffUL
+#define __UINT_FAST64_MAX__ 0xffffffffffffffffUL
+#define __INTPTR_MAX__ 0x7fffffffffffffffL
+#define __INTPTR_WIDTH__ 64
+#define __UINTPTR_MAX__ 0xffffffffffffffffUL
+#define __GCC_IEC_559 2
+#define __GCC_IEC_559_COMPLEX 2
+#define __FLT_EVAL_METHOD__ 0
+#define __FLT_EVAL_METHOD_TS_18661_3__ 0
+#define __DEC_EVAL_METHOD__ 2
+#define __FLT_RADIX__ 2
+#define __FLT_MANT_DIG__ 24
+#define __FLT_DIG__ 6
+#define __FLT_MIN_EXP__ (-125)
+#define __FLT_MIN_10_EXP__ (-37)
+#define __FLT_MAX_EXP__ 128
+#define __FLT_MAX_10_EXP__ 38
+#define __FLT_DECIMAL_DIG__ 9
+#define __FLT_MAX__ 3.40282346638528859811704183484516925e+38F
+#define __FLT_NORM_MAX__ 3.40282346638528859811704183484516925e+38F
+#define __FLT_MIN__ 1.17549435082228750796873653722224568e-38F
+#define __FLT_EPSILON__ 1.19209289550781250000000000000000000e-7F
+#define __FLT_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F
+#define __FLT_HAS_DENORM__ 1
+#define __FLT_HAS_INFINITY__ 1
+#define __FLT_HAS_QUIET_NAN__ 1
+#define __FLT_IS_IEC_60559__ 2
+#define __DBL_MANT_DIG__ 53
+#define __DBL_DIG__ 15
+#define __DBL_MIN_EXP__ (-1021)
+#define __DBL_MIN_10_EXP__ (-307)
+#define __DBL_MAX_EXP__ 1024
+#define __DBL_MAX_10_EXP__ 308
+#define __DBL_DECIMAL_DIG__ 17
+#define __DBL_MAX__ double(1.79769313486231570814527423731704357e+308L)
+#define __DBL_NORM_MAX__ double(1.79769313486231570814527423731704357e+308L)
+#define __DBL_MIN__ double(2.22507385850720138309023271733240406e-308L)
+#define __DBL_EPSILON__ double(2.22044604925031308084726333618164062e-16L)
+#define __DBL_DENORM_MIN__ double(4.94065645841246544176568792868221372e-324L)
+#define __DBL_HAS_DENORM__ 1
+#define __DBL_HAS_INFINITY__ 1
+#define __DBL_HAS_QUIET_NAN__ 1
+#define __DBL_IS_IEC_60559__ 2
+#define __LDBL_MANT_DIG__ 64
+#define __LDBL_DIG__ 18
+#define __LDBL_MIN_EXP__ (-16381)
+#define __LDBL_MIN_10_EXP__ (-4931)
+#define __LDBL_MAX_EXP__ 16384
+#define __LDBL_MAX_10_EXP__ 4932
+#define __DECIMAL_DIG__ 21
+#define __LDBL_DECIMAL_DIG__ 21
+#define __LDBL_MAX__ 1.18973149535723176502126385303097021e+4932L
+#define __LDBL_NORM_MAX__ 1.18973149535723176502126385303097021e+4932L
+#define __LDBL_MIN__ 3.36210314311209350626267781732175260e-4932L
+#define __LDBL_EPSILON__ 1.08420217248550443400745280086994171e-19L
+#define __LDBL_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951L
+#define __LDBL_HAS_DENORM__ 1
+#define __LDBL_HAS_INFINITY__ 1
+#define __LDBL_HAS_QUIET_NAN__ 1
+#define __LDBL_IS_IEC_60559__ 2
+#define __FLT32_MANT_DIG__ 24
+#define __FLT32_DIG__ 6
+#define __FLT32_MIN_EXP__ (-125)
+#define __FLT32_MIN_10_EXP__ (-37)
+#define __FLT32_MAX_EXP__ 128
+#define __FLT32_MAX_10_EXP__ 38
+#define __FLT32_DECIMAL_DIG__ 9
+#define __FLT32_MAX__ 3.40282346638528859811704183484516925e+38F32
+#define __FLT32_NORM_MAX__ 3.40282346638528859811704183484516925e+38F32
+#define __FLT32_MIN__ 1.17549435082228750796873653722224568e-38F32
+#define __FLT32_EPSILON__ 1.19209289550781250000000000000000000e-7F32
+#define __FLT32_DENORM_MIN__ 1.40129846432481707092372958328991613e-45F32
+#define __FLT32_HAS_DENORM__ 1
+#define __FLT32_HAS_INFINITY__ 1
+#define __FLT32_HAS_QUIET_NAN__ 1
+#define __FLT32_IS_IEC_60559__ 2
+#define __FLT64_MANT_DIG__ 53
+#define __FLT64_DIG__ 15
+#define __FLT64_MIN_EXP__ (-1021)
+#define __FLT64_MIN_10_EXP__ (-307)
+#define __FLT64_MAX_EXP__ 1024
+#define __FLT64_MAX_10_EXP__ 308
+#define __FLT64_DECIMAL_DIG__ 17
+#define __FLT64_MAX__ 1.79769313486231570814527423731704357e+308F64
+#define __FLT64_NORM_MAX__ 1.79769313486231570814527423731704357e+308F64
+#define __FLT64_MIN__ 2.22507385850720138309023271733240406e-308F64
+#define __FLT64_EPSILON__ 2.22044604925031308084726333618164062e-16F64
+#define __FLT64_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F64
+#define __FLT64_HAS_DENORM__ 1
+#define __FLT64_HAS_INFINITY__ 1
+#define __FLT64_HAS_QUIET_NAN__ 1
+#define __FLT64_IS_IEC_60559__ 2
+#define __FLT128_MANT_DIG__ 113
+#define __FLT128_DIG__ 33
+#define __FLT128_MIN_EXP__ (-16381)
+#define __FLT128_MIN_10_EXP__ (-4931)
+#define __FLT128_MAX_EXP__ 16384
+#define __FLT128_MAX_10_EXP__ 4932
+#define __FLT128_DECIMAL_DIG__ 36
+#define __FLT128_MAX__ 1.18973149535723176508575932662800702e+4932F128
+#define __FLT128_NORM_MAX__ 1.18973149535723176508575932662800702e+4932F128
+#define __FLT128_MIN__ 3.36210314311209350626267781732175260e-4932F128
+#define __FLT128_EPSILON__ 1.92592994438723585305597794258492732e-34F128
+#define __FLT128_DENORM_MIN__ 6.47517511943802511092443895822764655e-4966F128
+#define __FLT128_HAS_DENORM__ 1
+#define __FLT128_HAS_INFINITY__ 1
+#define __FLT128_HAS_QUIET_NAN__ 1
+#define __FLT128_IS_IEC_60559__ 2
+#define __FLT32X_MANT_DIG__ 53
+#define __FLT32X_DIG__ 15
+#define __FLT32X_MIN_EXP__ (-1021)
+#define __FLT32X_MIN_10_EXP__ (-307)
+#define __FLT32X_MAX_EXP__ 1024
+#define __FLT32X_MAX_10_EXP__ 308
+#define __FLT32X_DECIMAL_DIG__ 17
+#define __FLT32X_MAX__ 1.79769313486231570814527423731704357e+308F32x
+#define __FLT32X_NORM_MAX__ 1.79769313486231570814527423731704357e+308F32x
+#define __FLT32X_MIN__ 2.22507385850720138309023271733240406e-308F32x
+#define __FLT32X_EPSILON__ 2.22044604925031308084726333618164062e-16F32x
+#define __FLT32X_DENORM_MIN__ 4.94065645841246544176568792868221372e-324F32x
+#define __FLT32X_HAS_DENORM__ 1
+#define __FLT32X_HAS_INFINITY__ 1
+#define __FLT32X_HAS_QUIET_NAN__ 1
+#define __FLT32X_IS_IEC_60559__ 2
+#define __FLT64X_MANT_DIG__ 64
+#define __FLT64X_DIG__ 18
+#define __FLT64X_MIN_EXP__ (-16381)
+#define __FLT64X_MIN_10_EXP__ (-4931)
+#define __FLT64X_MAX_EXP__ 16384
+#define __FLT64X_MAX_10_EXP__ 4932
+#define __FLT64X_DECIMAL_DIG__ 21
+#define __FLT64X_MAX__ 1.18973149535723176502126385303097021e+4932F64x
+#define __FLT64X_NORM_MAX__ 1.18973149535723176502126385303097021e+4932F64x
+#define __FLT64X_MIN__ 3.36210314311209350626267781732175260e-4932F64x
+#define __FLT64X_EPSILON__ 1.08420217248550443400745280086994171e-19F64x
+#define __FLT64X_DENORM_MIN__ 3.64519953188247460252840593361941982e-4951F64x
+#define __FLT64X_HAS_DENORM__ 1
+#define __FLT64X_HAS_INFINITY__ 1
+#define __FLT64X_HAS_QUIET_NAN__ 1
+#define __FLT64X_IS_IEC_60559__ 2
+#define __DEC32_MANT_DIG__ 7
+#define __DEC32_MIN_EXP__ (-94)
+#define __DEC32_MAX_EXP__ 97
+#define __DEC32_MIN__ 1E-95DF
+#define __DEC32_MAX__ 9.999999E96DF
+#define __DEC32_EPSILON__ 1E-6DF
+#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
+#define __DEC64_MANT_DIG__ 16
+#define __DEC64_MIN_EXP__ (-382)
+#define __DEC64_MAX_EXP__ 385
+#define __DEC64_MIN__ 1E-383DD
+#define __DEC64_MAX__ 9.999999999999999E384DD
+#define __DEC64_EPSILON__ 1E-15DD
+#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
+#define __DEC128_MANT_DIG__ 34
+#define __DEC128_MIN_EXP__ (-6142)
+#define __DEC128_MAX_EXP__ 6145
+#define __DEC128_MIN__ 1E-6143DL
+#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL
+#define __DEC128_EPSILON__ 1E-33DL
+#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
+#define __REGISTER_PREFIX__
+#define __USER_LABEL_PREFIX__
+#define __GNUC_STDC_INLINE__ 1
+#define __NO_INLINE__ 1
+#define __STRICT_ANSI__ 1
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
+#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
+#define __GCC_ATOMIC_BOOL_LOCK_FREE 2
+#define __GCC_ATOMIC_CHAR_LOCK_FREE 2
+#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2
+#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
+#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
+#define __GCC_ATOMIC_SHORT_LOCK_FREE 2
+#define __GCC_ATOMIC_INT_LOCK_FREE 2
+#define __GCC_ATOMIC_LONG_LOCK_FREE 2
+#define __GCC_ATOMIC_LLONG_LOCK_FREE 2
+#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1
+#define __GCC_ATOMIC_POINTER_LOCK_FREE 2
+#define __HAVE_SPECULATION_SAFE_VALUE 1
+#define __GCC_HAVE_DWARF2_CFI_ASM 1
+#define __PRAGMA_REDEFINE_EXTNAME 1
+#define __SIZEOF_INT128__ 16
+#define __SIZEOF_WCHAR_T__ 4
+#define __SIZEOF_WINT_T__ 4
+#define __SIZEOF_PTRDIFF_T__ 8
+#define __amd64 1
+#define __amd64__ 1
+#define __x86_64 1
+#define __x86_64__ 1
+#define __SIZEOF_FLOAT80__ 16
+#define __SIZEOF_FLOAT128__ 16
+#define __ATOMIC_HLE_ACQUIRE 65536
+#define __ATOMIC_HLE_RELEASE 131072
+#define __GCC_ASM_FLAG_OUTPUTS__ 1
+#define __k8 1
+#define __k8__ 1
+#define __code_model_small__ 1
+#define __MMX__ 1
+#define __SSE__ 1
+#define __SSE2__ 1
+#define __FXSR__ 1
+#define __SSE_MATH__ 1
+#define __SSE2_MATH__ 1
+#define __MMX_WITH_SSE__ 1
+#define __SEG_FS 1
+#define __SEG_GS 1
+#define __gnu_linux__ 1
+#define __linux 1
+#define __linux__ 1
+#define __unix 1
+#define __unix__ 1
+#define __ELF__ 1
+#define __DECIMAL_BID_FORMAT__ 1
+# 0 "<command-line>"
+#define _GNU_SOURCE 1
+# 0 "<command-line>"
+# 1 "/usr/include/stdc-predef.h" 1 3 4
+/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _STDC_PREDEF_H 1
+
+/* This header is separate from features.h so that the compiler can
+ include it implicitly at the start of every compilation. It must
+ not itself include <features.h> or any other header that includes
+ <features.h> because the implicit include comes before any feature
+ test macros that may be defined in a source file before it first
+ explicitly includes a system header. GCC knows the name of this
+ header in order to preinclude it. */
+
+/* glibc's intent is to support the IEC 559 math functionality, real
+ and complex. If the GCC (4.9 and later) predefined macros
+ specifying compiler intent are available, use them to determine
+ whether the overall intent is to support these features; otherwise,
+ presume an older compiler has intent to support these features and
+ define these macros by default. */
+
+
+
+#define __STDC_IEC_559__ 1
+
+
+
+
+
+
+
+#define __STDC_IEC_559_COMPLEX__ 1
+
+
+
+
+
+/* wchar_t uses Unicode 10.0.0. Version 10.0 of the Unicode Standard is
+ synchronized with ISO/IEC 10646:2017, fifth edition, plus
+ the following additions from Amendment 1 to the fifth edition:
+ - 56 emoji characters
+ - 285 hentaigana
+ - 3 additional Zanabazar Square characters */
+#define __STDC_ISO_10646__ 201706L
+
+# 0 "<command-line>" 2
+# 482 "iostream"
+// Standard iostream objects -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/iostream
+ * This is a Standard C++ Library header.
+ */
+
+//
+// ISO C++ 14882: 27.3 Standard iostream objects
+//
+
+
+#define _GLIBCXX_IOSTREAM 1
+
+
+
+// Predefined symbols and macros -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/c++config.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{version}
+ */
+
+
+#define _GLIBCXX_CXX_CONFIG_H 1
+
+// The major release number for the GCC release the C++ library belongs to.
+#define _GLIBCXX_RELEASE 11
+
+// The datestamp of the C++ library in compressed ISO date format.
+#define __GLIBCXX__ 20210217
+
+// Macros for various attributes.
+// _GLIBCXX_PURE
+// _GLIBCXX_CONST
+// _GLIBCXX_NORETURN
+// _GLIBCXX_NOTHROW
+// _GLIBCXX_VISIBILITY
+
+#define _GLIBCXX_PURE __attribute__ ((__pure__))
+
+
+
+#define _GLIBCXX_CONST __attribute__ ((__const__))
+
+
+
+#define _GLIBCXX_NORETURN __attribute__ ((__noreturn__))
+
+
+// See below for C++
+
+
+
+
+
+
+// Macros for visibility attributes.
+// _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY
+// _GLIBCXX_VISIBILITY
+#define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY 1
+
+
+#define _GLIBCXX_VISIBILITY(V) __attribute__ ((__visibility__ (#V)))
+#define _GLIBCXX_VISIBILITY2(V) __attribute__ ((__visibility__ (#V)))
+
+
+
+
+
+
+// Macros for deprecated attributes.
+// _GLIBCXX_USE_DEPRECATED
+// _GLIBCXX_DEPRECATED
+// _GLIBCXX_DEPRECATED_SUGGEST( string-literal )
+// _GLIBCXX11_DEPRECATED
+// _GLIBCXX11_DEPRECATED_SUGGEST( string-literal )
+// _GLIBCXX17_DEPRECATED
+// _GLIBCXX17_DEPRECATED_SUGGEST( string-literal )
+// _GLIBCXX20_DEPRECATED( string-literal )
+// _GLIBCXX20_DEPRECATED_SUGGEST( string-literal )
+
+#define _GLIBCXX_USE_DEPRECATED 1
+
+
+
+#define _GLIBCXX_DEPRECATED __attribute__ ((__deprecated__))
+#define _GLIBCXX_DEPRECATED_SUGGEST(ALT) __attribute__ ((__deprecated__ ("use '" ALT "' instead")))
+
+
+
+
+
+
+
+#define _GLIBCXX11_DEPRECATED _GLIBCXX_DEPRECATED
+#define _GLIBCXX11_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
+
+
+
+
+
+
+#define _GLIBCXX17_DEPRECATED [[__deprecated__]]
+#define _GLIBCXX17_DEPRECATED_SUGGEST(ALT) _GLIBCXX_DEPRECATED_SUGGEST(ALT)
+
+
+
+
+
+
+
+
+
+#define _GLIBCXX20_DEPRECATED(MSG)
+#define _GLIBCXX20_DEPRECATED_SUGGEST(ALT)
+
+
+// Macros for ABI tag attributes.
+
+#define _GLIBCXX_ABI_TAG_CXX11 __attribute ((__abi_tag__ ("cxx11")))
+
+
+// Macro to warn about unused results.
+
+#define _GLIBCXX_NODISCARD [[__nodiscard__]]
+
+
+
+
+
+
+
+
+// Macro for constexpr, to support in mixed 03/0x mode.
+
+
+#define _GLIBCXX_CONSTEXPR constexpr
+#define _GLIBCXX_USE_CONSTEXPR constexpr
+
+
+
+
+
+
+
+
+#define _GLIBCXX14_CONSTEXPR constexpr
+
+
+
+
+
+
+
+#define _GLIBCXX17_CONSTEXPR constexpr
+
+
+
+
+
+
+
+
+
+#define _GLIBCXX20_CONSTEXPR
+
+
+
+
+
+#define _GLIBCXX17_INLINE inline
+
+
+
+
+
+// Macro for noexcept, to support in mixed 03/0x mode.
+
+
+#define _GLIBCXX_NOEXCEPT noexcept
+#define _GLIBCXX_NOEXCEPT_IF(...) noexcept(__VA_ARGS__)
+#define _GLIBCXX_USE_NOEXCEPT noexcept
+#define _GLIBCXX_THROW(_EXC)
+
+
+
+
+
+
+
+
+
+#define _GLIBCXX_NOTHROW _GLIBCXX_USE_NOEXCEPT
+
+
+
+
+#define _GLIBCXX_THROW_OR_ABORT(_EXC) (throw (_EXC))
+
+
+
+
+
+
+#define _GLIBCXX_NOEXCEPT_PARM , bool _NE
+#define _GLIBCXX_NOEXCEPT_QUAL noexcept (_NE)
+
+
+
+
+
+// Macro for extern template, ie controlling template linkage via use
+// of extern keyword on template declaration. As documented in the g++
+// manual, it inhibits all implicit instantiations and is used
+// throughout the library to avoid multiple weak definitions for
+// required types that are already explicitly instantiated in the
+// library binary. This substantially reduces the binary size of
+// resulting executables.
+// Special case: _GLIBCXX_EXTERN_TEMPLATE == -1 disallows extern
+// templates only in basic_string, thus activating its debug-mode
+// checks even at -O0.
+#define _GLIBCXX_EXTERN_TEMPLATE 1
+
+/*
+ Outline of libstdc++ namespaces.
+
+ namespace std
+ {
+ namespace __debug { }
+ namespace __parallel { }
+ namespace __cxx1998 { }
+
+ namespace __detail {
+ namespace __variant { } // C++17
+ }
+
+ namespace rel_ops { }
+
+ namespace tr1
+ {
+ namespace placeholders { }
+ namespace regex_constants { }
+ namespace __detail { }
+ }
+
+ namespace tr2 { }
+
+ namespace decimal { }
+
+ namespace chrono { } // C++11
+ namespace placeholders { } // C++11
+ namespace regex_constants { } // C++11
+ namespace this_thread { } // C++11
+ inline namespace literals { // C++14
+ inline namespace chrono_literals { } // C++14
+ inline namespace complex_literals { } // C++14
+ inline namespace string_literals { } // C++14
+ inline namespace string_view_literals { } // C++17
+ }
+ }
+
+ namespace abi { }
+
+ namespace __gnu_cxx
+ {
+ namespace __detail { }
+ }
+
+ For full details see:
+ http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/namespaces.html
+*/
+namespace std
+{
+ typedef __SIZE_TYPE__ size_t;
+ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+
+
+ typedef decltype(nullptr) nullptr_t;
+
+}
+
+#define _GLIBCXX_USE_DUAL_ABI 1
+
+
+
+
+
+
+
+#define _GLIBCXX_USE_CXX11_ABI 1
+
+
+
+namespace std
+{
+ inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
+}
+namespace __gnu_cxx
+{
+ inline namespace __cxx11 __attribute__((__abi_tag__ ("cxx11"))) { }
+}
+#define _GLIBCXX_NAMESPACE_CXX11 __cxx11::
+#define _GLIBCXX_BEGIN_NAMESPACE_CXX11 namespace __cxx11 {
+#define _GLIBCXX_END_NAMESPACE_CXX11 }
+#define _GLIBCXX_DEFAULT_ABI_TAG _GLIBCXX_ABI_TAG_CXX11
+
+
+
+
+
+
+
+// Defined if inline namespaces are used for versioning.
+#define _GLIBCXX_INLINE_VERSION 0
+
+// Inline namespace for symbol versioning.
+#define _GLIBCXX_BEGIN_NAMESPACE_VERSION
+#define _GLIBCXX_END_NAMESPACE_VERSION
+
+
+// Inline namespaces for special modes: debug, parallel.
+
+// Macros for namespace scope. Either namespace std:: or the name
+// of some nested namespace within it corresponding to the active mode.
+// _GLIBCXX_STD_A
+// _GLIBCXX_STD_C
+//
+// Macros for opening/closing conditional namespaces.
+// _GLIBCXX_BEGIN_NAMESPACE_ALGO
+// _GLIBCXX_END_NAMESPACE_ALGO
+// _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
+// _GLIBCXX_END_NAMESPACE_CONTAINER
+
+
+
+
+
+
+#define _GLIBCXX_STD_C std
+#define _GLIBCXX_BEGIN_NAMESPACE_CONTAINER
+#define _GLIBCXX_END_NAMESPACE_CONTAINER
+
+
+
+
+
+
+
+
+#define _GLIBCXX_STD_A std
+#define _GLIBCXX_BEGIN_NAMESPACE_ALGO
+#define _GLIBCXX_END_NAMESPACE_ALGO
+
+
+// GLIBCXX_ABI Deprecated
+// Define if compatibility should be provided for -mlong-double-64.
+#undef _GLIBCXX_LONG_DOUBLE_COMPAT
+// Define if compatibility should be provided for alternative 128-bit long
+// double formats.
+#undef _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT
+
+// Inline namespaces for long double 128 modes.
+
+#define _GLIBCXX_NAMESPACE_LDBL
+#define _GLIBCXX_BEGIN_NAMESPACE_LDBL
+#define _GLIBCXX_END_NAMESPACE_LDBL
+
+
+
+#define _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_NAMESPACE_CXX11
+#define _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_BEGIN_NAMESPACE_CXX11
+#define _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 _GLIBCXX_END_NAMESPACE_CXX11
+
+
+
+
+
+
+
+
+// Debug Mode implies checking assertions.
+
+
+
+
+// Disable std::string explicit instantiation declarations in order to assert.
+
+
+
+
+
+// Assert.
+
+
+
+
+#define __glibcxx_assert_2(_Condition)
+
+
+// Macros for race detectors.
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A) and
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A) should be used to explain
+// atomic (lock-free) synchronization to race detectors:
+// the race detector will infer a happens-before arc from the former to the
+// latter when they share the same argument pointer.
+//
+// The most frequent use case for these macros (and the only case in the
+// current implementation of the library) is atomic reference counting:
+// void _M_remove_reference()
+// {
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(&this->_M_refcount);
+// if (__gnu_cxx::__exchange_and_add_dispatch(&this->_M_refcount, -1) <= 0)
+// {
+// _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(&this->_M_refcount);
+// _M_destroy(__a);
+// }
+// }
+// The annotations in this example tell the race detector that all memory
+// accesses occurred when the refcount was positive do not race with
+// memory accesses which occurred after the refcount became zero.
+
+#define _GLIBCXX_SYNCHRONIZATION_HAPPENS_BEFORE(A)
+
+
+#define _GLIBCXX_SYNCHRONIZATION_HAPPENS_AFTER(A)
+
+
+// Macros for C linkage: define extern "C" linkage only when using C++.
+#define _GLIBCXX_BEGIN_EXTERN_C extern "C" {
+#define _GLIBCXX_END_EXTERN_C }
+
+#define _GLIBCXX_USE_ALLOCATOR_NEW 1
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+// First includes.
+
+// Pick up any OS-specific definitions.
+// Specific definitions for GNU/Linux -*- C++ -*-
+
+// Copyright (C) 2000-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/os_defines.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+
+#define _GLIBCXX_OS_DEFINES 1
+
+// System-specific #define, typedefs, corrections, etc, go here. This
+// file will come before all others.
+
+// This keeps isanum, et al from being propagated as macros.
+#define __NO_CTYPE 1
+
+/* Copyright (C) 1991-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _FEATURES_H 1
+
+/* These are defined by the user (or the compiler)
+ to specify the desired environment:
+
+ __STRICT_ANSI__ ISO Standard C.
+ _ISOC99_SOURCE Extensions to ISO C89 from ISO C99.
+ _ISOC11_SOURCE Extensions to ISO C99 from ISO C11.
+ __STDC_WANT_LIB_EXT2__
+ Extensions to ISO C99 from TR 27431-2:2010.
+ __STDC_WANT_IEC_60559_BFP_EXT__
+ Extensions to ISO C11 from TS 18661-1:2014.
+ __STDC_WANT_IEC_60559_FUNCS_EXT__
+ Extensions to ISO C11 from TS 18661-4:2015.
+ __STDC_WANT_IEC_60559_TYPES_EXT__
+ Extensions to ISO C11 from TS 18661-3:2015.
+
+ _POSIX_SOURCE IEEE Std 1003.1.
+ _POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
+ if >=199309L, add IEEE Std 1003.1b-1993;
+ if >=199506L, add IEEE Std 1003.1c-1995;
+ if >=200112L, all of IEEE 1003.1-2004
+ if >=200809L, all of IEEE 1003.1-2008
+ _XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if
+ Single Unix conformance is wanted, to 600 for the
+ sixth revision, to 700 for the seventh revision.
+ _XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.
+ _LARGEFILE_SOURCE Some more functions for correct standard I/O.
+ _LARGEFILE64_SOURCE Additional functionality from LFS for large files.
+ _FILE_OFFSET_BITS=N Select default filesystem interface.
+ _ATFILE_SOURCE Additional *at interfaces.
+ _GNU_SOURCE All of the above, plus GNU extensions.
+ _DEFAULT_SOURCE The default set of features (taking precedence over
+ __STRICT_ANSI__).
+
+ _FORTIFY_SOURCE Add security hardening to many library functions.
+ Set to 1 or 2; 2 performs stricter checks than 1.
+
+ _REENTRANT, _THREAD_SAFE
+ Obsolete; equivalent to _POSIX_C_SOURCE=199506L.
+
+ The `-ansi' switch to the GNU C compiler, and standards conformance
+ options such as `-std=c99', define __STRICT_ANSI__. If none of
+ these are defined, or if _DEFAULT_SOURCE is defined, the default is
+ to have _POSIX_SOURCE set to one and _POSIX_C_SOURCE set to
+ 200809L, as well as enabling miscellaneous functions from BSD and
+ SVID. If more than one of these are defined, they accumulate. For
+ example __STRICT_ANSI__, _POSIX_SOURCE and _POSIX_C_SOURCE together
+ give you ISO C, 1003.1, and 1003.2, but nothing else.
+
+ These are defined by this file and are used by the
+ header files to decide what to declare or define:
+
+ __GLIBC_USE (F) Define things from feature set F. This is defined
+ to 1 or 0; the subsequent macros are either defined
+ or undefined, and those tests should be moved to
+ __GLIBC_USE.
+ __USE_ISOC11 Define ISO C11 things.
+ __USE_ISOC99 Define ISO C99 things.
+ __USE_ISOC95 Define ISO C90 AMD1 (C95) things.
+ __USE_ISOCXX11 Define ISO C++11 things.
+ __USE_POSIX Define IEEE Std 1003.1 things.
+ __USE_POSIX2 Define IEEE Std 1003.2 things.
+ __USE_POSIX199309 Define IEEE Std 1003.1, and .1b things.
+ __USE_POSIX199506 Define IEEE Std 1003.1, .1b, .1c and .1i things.
+ __USE_XOPEN Define XPG things.
+ __USE_XOPEN_EXTENDED Define X/Open Unix things.
+ __USE_UNIX98 Define Single Unix V2 things.
+ __USE_XOPEN2K Define XPG6 things.
+ __USE_XOPEN2KXSI Define XPG6 XSI things.
+ __USE_XOPEN2K8 Define XPG7 things.
+ __USE_XOPEN2K8XSI Define XPG7 XSI things.
+ __USE_LARGEFILE Define correct standard I/O things.
+ __USE_LARGEFILE64 Define LFS things with separate names.
+ __USE_FILE_OFFSET64 Define 64bit interface as default.
+ __USE_MISC Define things from 4.3BSD or System V Unix.
+ __USE_ATFILE Define *at interfaces and AT_* constants for them.
+ __USE_GNU Define GNU extensions.
+ __USE_FORTIFY_LEVEL Additional security measures used, according to level.
+
+ The macros `__GNU_LIBRARY__', `__GLIBC__', and `__GLIBC_MINOR__' are
+ defined by this file unconditionally. `__GNU_LIBRARY__' is provided
+ only for compatibility. All new code should use the other symbols
+ to test for features.
+
+ All macros listed above as possibly being defined by this file are
+ explicitly undefined if they are not explicitly defined.
+ Feature-test macros that are not defined by the user or compiler
+ but are implied by the other feature-test macros defined (or by the
+ lack of any definitions) are defined by the file.
+
+ ISO C feature test macros depend on the definition of the macro
+ when an affected header is included, not when the first system
+ header is included, and so they are handled in
+ <bits/libc-header-start.h>, which does not have a multiple include
+ guard. Feature test macros that can be handled from the first
+ system header included are handled here. */
+
+
+/* Undefine everything, so we get a clean slate. */
+#undef __USE_ISOC11
+#undef __USE_ISOC99
+#undef __USE_ISOC95
+#undef __USE_ISOCXX11
+#undef __USE_POSIX
+#undef __USE_POSIX2
+#undef __USE_POSIX199309
+#undef __USE_POSIX199506
+#undef __USE_XOPEN
+#undef __USE_XOPEN_EXTENDED
+#undef __USE_UNIX98
+#undef __USE_XOPEN2K
+#undef __USE_XOPEN2KXSI
+#undef __USE_XOPEN2K8
+#undef __USE_XOPEN2K8XSI
+#undef __USE_LARGEFILE
+#undef __USE_LARGEFILE64
+#undef __USE_FILE_OFFSET64
+#undef __USE_MISC
+#undef __USE_ATFILE
+#undef __USE_GNU
+#undef __USE_FORTIFY_LEVEL
+#undef __KERNEL_STRICT_NAMES
+#undef __GLIBC_USE_DEPRECATED_GETS
+
+/* Suppress kernel-name space pollution unless user expressedly asks
+ for it. */
+
+#define __KERNEL_STRICT_NAMES
+
+
+/* Convenience macro to test the version of gcc.
+ Use like this:
+ #if __GNUC_PREREQ (2,8)
+ ... code requiring gcc 2.8 or later ...
+ #endif
+ Note: only works for GCC 2.0 and later, because __GNUC_MINOR__ was
+ added in 2.0. */
+
+#define __GNUC_PREREQ(maj,min) ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+
+
+
+
+
+/* Similarly for clang. Features added to GCC after version 4.2 may
+ or may not also be available in clang, and clang's definitions of
+ __GNUC(_MINOR)__ are fixed at 4 and 2 respectively. Not all such
+ features can be queried via __has_extension/__has_feature. */
+
+
+
+
+#define __glibc_clang_prereq(maj,min) 0
+
+
+/* Whether to use feature set F. */
+#define __GLIBC_USE(F) __GLIBC_USE_ ## F
+
+/* _BSD_SOURCE and _SVID_SOURCE are deprecated aliases for
+ _DEFAULT_SOURCE. If _DEFAULT_SOURCE is present we do not
+ issue a warning; the expectation is that the source is being
+ transitioned to use the new macro. */
+
+
+
+
+
+
+
+/* If _GNU_SOURCE was defined by the user, turn on all the other features. */
+
+#undef _ISOC95_SOURCE
+#define _ISOC95_SOURCE 1
+#undef _ISOC99_SOURCE
+#define _ISOC99_SOURCE 1
+#undef _ISOC11_SOURCE
+#define _ISOC11_SOURCE 1
+#undef _POSIX_SOURCE
+#define _POSIX_SOURCE 1
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+#undef _XOPEN_SOURCE
+#define _XOPEN_SOURCE 700
+#undef _XOPEN_SOURCE_EXTENDED
+#define _XOPEN_SOURCE_EXTENDED 1
+#undef _LARGEFILE64_SOURCE
+#define _LARGEFILE64_SOURCE 1
+#undef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE 1
+#undef _ATFILE_SOURCE
+#define _ATFILE_SOURCE 1
+
+
+/* If nothing (other than _GNU_SOURCE and _DEFAULT_SOURCE) is defined,
+ define _DEFAULT_SOURCE. */
+
+
+
+
+
+#undef _DEFAULT_SOURCE
+#define _DEFAULT_SOURCE 1
+
+
+/* This is to enable the ISO C11 extension. */
+
+
+#define __USE_ISOC11 1
+
+
+/* This is to enable the ISO C99 extension. */
+
+
+#define __USE_ISOC99 1
+
+
+/* This is to enable the ISO C90 Amendment 1:1995 extension. */
+
+
+#define __USE_ISOC95 1
+
+
+
+/* This is to enable compatibility for ISO C++17. */
+
+#define __USE_ISOC11 1
+
+/* This is to enable compatibility for ISO C++11.
+ Check the temporary macro for now, too. */
+
+#define __USE_ISOCXX11 1
+#define __USE_ISOC99 1
+
+
+
+/* If none of the ANSI/POSIX macros are defined, or if _DEFAULT_SOURCE
+ is defined, use POSIX.1-2008 (or another version depending on
+ _XOPEN_SOURCE). */
+
+
+
+
+#undef _POSIX_SOURCE
+#define _POSIX_SOURCE 1
+#undef _POSIX_C_SOURCE
+#define _POSIX_C_SOURCE 200809L
+
+
+
+/* Some C libraries once required _REENTRANT and/or _THREAD_SAFE to be
+ defined in all multithreaded code. GNU libc has not required this
+ for many years. We now treat them as compatibility synonyms for
+ _POSIX_C_SOURCE=199506L, which is the earliest level of POSIX with
+ comprehensive support for multithreaded code. Using them never
+ lowers the selected level of POSIX conformance, only raises it. */
+
+
+
+
+
+
+
+
+
+
+#define __USE_POSIX 1
+
+
+
+#define __USE_POSIX2 1
+
+
+
+#define __USE_POSIX199309 1
+
+
+
+#define __USE_POSIX199506 1
+
+
+
+#define __USE_XOPEN2K 1
+#undef __USE_ISOC95
+#define __USE_ISOC95 1
+#undef __USE_ISOC99
+#define __USE_ISOC99 1
+
+
+
+#define __USE_XOPEN2K8 1
+#undef _ATFILE_SOURCE
+#define _ATFILE_SOURCE 1
+
+
+
+#define __USE_XOPEN 1
+
+#define __USE_XOPEN_EXTENDED 1
+#define __USE_UNIX98 1
+#undef _LARGEFILE_SOURCE
+#define _LARGEFILE_SOURCE 1
+
+
+#define __USE_XOPEN2K8 1
+#define __USE_XOPEN2K8XSI 1
+
+#define __USE_XOPEN2K 1
+#define __USE_XOPEN2KXSI 1
+#undef __USE_ISOC95
+#define __USE_ISOC95 1
+#undef __USE_ISOC99
+#define __USE_ISOC99 1
+
+
+
+
+
+
+
+
+
+#define __USE_LARGEFILE 1
+
+
+
+#define __USE_LARGEFILE64 1
+
+
+
+
+
+
+
+#define __USE_MISC 1
+
+
+
+#define __USE_ATFILE 1
+
+
+
+#define __USE_GNU 1
+
+
+
+#define __USE_FORTIFY_LEVEL 0
+
+
+/* The function 'gets' existed in C89, but is impossible to use
+ safely. It has been removed from ISO C11 and ISO C++14. Note: for
+ compatibility with various implementations of <cstdio>, this test
+ must consider only the value of __cplusplus when compiling C++. */
+
+#define __GLIBC_USE_DEPRECATED_GETS 0
+
+
+
+
+/* Get definitions of __STDC_* predefined macros, if the compiler has
+ not preincluded this header automatically. */
+
+
+/* This macro indicates that the installed library is the GNU C Library.
+ For historic reasons the value now is 6 and this will stay from now
+ on. The use of this variable is deprecated. Use __GLIBC__ and
+ __GLIBC_MINOR__ now (see below) when you want to test for a specific
+ GNU C library version and use the values in <gnu/lib-names.h> to get
+ the sonames of the shared libraries. */
+#undef __GNU_LIBRARY__
+#define __GNU_LIBRARY__ 6
+
+/* Major and minor version number of the GNU C library package. Use
+ these macros to test for features in specific releases. */
+#define __GLIBC__ 2
+#define __GLIBC_MINOR__ 28
+
+#define __GLIBC_PREREQ(maj,min) ((__GLIBC__ << 16) + __GLIBC_MINOR__ >= ((maj) << 16) + (min))
+
+
+/* This is here only because every header file already includes this one. */
+
+
+/* Copyright (C) 1992-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _SYS_CDEFS_H 1
+
+/* We are almost always included from features.h. */
+
+
+
+
+/* The GNU libc does not support any K&R compilers or the traditional mode
+ of ISO C compilers anymore. Check for some of the combinations not
+ anymore supported. */
+
+
+
+
+/* Some user header file might have defined this before. */
+#undef __P
+#undef __PMT
+
+
+
+/* All functions, except those with callbacks or those that
+ synchronize memory, are leaf functions. */
+
+#define __LEAF , __leaf__
+#define __LEAF_ATTR __attribute__ ((__leaf__))
+
+
+
+
+
+/* GCC can always grok prototypes. For C++ programs we add throw()
+ to help it optimize the function calls. But this works only with
+ gcc 2.8.x and egcs. For gcc 3.2 and up we even mark C functions
+ as non-throwing using a function attribute since programs can use
+ the -fexceptions options for C code as well. */
+
+
+
+
+
+
+
+#define __THROW throw ()
+#define __THROWNL throw ()
+#define __NTH(fct) __LEAF_ATTR fct throw ()
+#define __NTHNL(fct) fct throw ()
+
+
+
+
+
+
+
+
+
+/* Compilers that are not clang may object to
+ #if defined __clang__ && __has_extension(...)
+ even though they do not need to evaluate the right-hand side of the &&. */
+
+
+
+#define __glibc_clang_has_extension(ext) 0
+
+
+/* These two macros are not used in glibc anymore. They are kept here
+ only because some other projects expect the macros to be defined. */
+#define __P(args) args
+#define __PMT(args) args
+
+/* For these things, GCC behaves the ANSI way normally,
+ and the non-ANSI way under -traditional. */
+
+#define __CONCAT(x,y) x ## y
+#define __STRING(x) #x
+
+/* This is not a typedef so `const __ptr_t' does the right thing. */
+#define __ptr_t void *
+
+
+/* C++ needs to know that types and declarations are C, not C++. */
+
+#define __BEGIN_DECLS extern "C" {
+#define __END_DECLS }
+
+
+
+
+
+
+/* Fortify support. */
+#define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
+#define __bos0(ptr) __builtin_object_size (ptr, 0)
+
+
+#define __warndecl(name,msg) extern void name (void) __attribute__((__warning__ (msg)))
+
+#define __warnattr(msg) __attribute__((__warning__ (msg)))
+#define __errordecl(name,msg) extern void name (void) __attribute__((__error__ (msg)))
+
+
+
+
+
+
+
+/* Support for flexible arrays.
+ Headers that should use flexible arrays only if they're "real"
+ (e.g. only if they won't affect sizeof()) should test
+ #if __glibc_c99_flexarr_available. */
+
+
+
+
+/* GCC 2.97 supports C99 flexible array members as an extension,
+ even when in C89 mode or compiling C++ (any version). */
+#define __flexarr []
+#define __glibc_c99_flexarr_available 1
+
+
+/* __asm__ ("xyz") is used throughout the headers to rename functions
+ at the assembly language level. This is wrapped by the __REDIRECT
+ macro, in order to support compilers that can do this some other
+ way. When compilers don't support asm-names at all, we have to do
+ preprocessor tricks instead (which don't have exactly the right
+ semantics, but it's the best we can do).
+
+ Example:
+ int __REDIRECT(setpgrp, (__pid_t pid, __pid_t pgrp), setpgid); */
+
+
+
+#define __REDIRECT(name,proto,alias) name proto __asm__ (__ASMNAME (#alias))
+
+#define __REDIRECT_NTH(name,proto,alias) name proto __THROW __asm__ (__ASMNAME (#alias))
+
+#define __REDIRECT_NTHNL(name,proto,alias) name proto __THROWNL __asm__ (__ASMNAME (#alias))
+
+
+
+
+
+
+
+#define __ASMNAME(cname) __ASMNAME2 (__USER_LABEL_PREFIX__, cname)
+#define __ASMNAME2(prefix,cname) __STRING (prefix) cname
+
+/*
+#elif __SOME_OTHER_COMPILER__
+
+ _Pragma("let " #name " = " #alias)
+*/
+
+
+/* GCC has various useful declarations that can be made with the
+ `__attribute__' syntax. All of the ways we use this do fine if
+ they are omitted for compilers that don't understand it. */
+
+
+
+
+/* At some point during the gcc 2.96 development the `malloc' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings. */
+
+#define __attribute_malloc__ __attribute__ ((__malloc__))
+
+
+
+
+/* Tell the compiler which arguments to an allocation function
+ indicate the size of the allocation. */
+
+#define __attribute_alloc_size__(params) __attribute__ ((__alloc_size__ params))
+
+
+
+
+
+/* At some point during the gcc 2.96 development the `pure' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings. */
+
+#define __attribute_pure__ __attribute__ ((__pure__))
+
+
+
+
+/* This declaration tells the compiler that the value is constant. */
+
+#define __attribute_const__ __attribute__ ((__const__))
+
+
+
+
+/* At some point during the gcc 3.1 development the `used' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings. */
+
+#define __attribute_used__ __attribute__ ((__used__))
+#define __attribute_noinline__ __attribute__ ((__noinline__))
+
+
+
+
+
+/* Since version 3.2, gcc allows marking deprecated functions. */
+
+#define __attribute_deprecated__ __attribute__ ((__deprecated__))
+
+
+
+
+/* Since version 4.5, gcc also allows one to specify the message printed
+ when a deprecated function is used. clang claims to be gcc 4.2, but
+ may also support this feature. */
+
+
+#define __attribute_deprecated_msg__(msg) __attribute__ ((__deprecated__ (msg)))
+
+
+
+
+
+/* At some point during the gcc 2.8 development the `format_arg' attribute
+ for functions was introduced. We don't want to use it unconditionally
+ (although this would be possible) since it generates warnings.
+ If several `format_arg' attributes are given for the same function, in
+ gcc-3.0 and older, all but the last one are ignored. In newer gccs,
+ all designated arguments are considered. */
+
+#define __attribute_format_arg__(x) __attribute__ ((__format_arg__ (x)))
+
+
+
+
+/* At some point during the gcc 2.97 development the `strfmon' format
+ attribute for functions was introduced. We don't want to use it
+ unconditionally (although this would be possible) since it
+ generates warnings. */
+
+#define __attribute_format_strfmon__(a,b) __attribute__ ((__format__ (__strfmon__, a, b)))
+
+
+
+
+
+/* The nonull function attribute allows to mark pointer parameters which
+ must not be NULL. */
+
+#define __nonnull(params) __attribute__ ((__nonnull__ params))
+
+
+
+
+/* If fortification mode, we warn about unused results of certain
+ function calls which can lead to problems. */
+
+#define __attribute_warn_unused_result__ __attribute__ ((__warn_unused_result__))
+
+
+
+
+
+
+
+
+#define __wur
+
+
+/* Forces a function to be always inlined. */
+
+/* The Linux kernel defines __always_inline in stddef.h (283d7573), and
+ it conflicts with this definition. Therefore undefine it first to
+ allow either header to be included first. */
+#undef __always_inline
+#define __always_inline __inline __attribute__ ((__always_inline__))
+
+
+
+
+
+/* Associate error messages with the source location of the call site rather
+ than with the source location inside the function. */
+
+#define __attribute_artificial__ __attribute__ ((__artificial__))
+
+
+
+
+/* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+ inline semantics, unless -fgnu89-inline is used. Using __GNUC_STDC_INLINE__
+ or __GNUC_GNU_INLINE is not a good enough check for gcc because gcc versions
+ older than 4.3 may define these macros and still not guarantee GNU inlining
+ semantics.
+
+ clang++ identifies itself as gcc-4.2, but has support for GNU inlining
+ semantics, that can be checked fot by using the __GNUC_STDC_INLINE_ and
+ __GNUC_GNU_INLINE__ macro definitions. */
+
+
+
+
+#define __extern_inline extern __inline __attribute__ ((__gnu_inline__))
+#define __extern_always_inline extern __always_inline __attribute__ ((__gnu_inline__))
+
+
+
+
+
+
+
+
+#define __fortify_function __extern_always_inline __attribute_artificial__
+
+
+/* GCC 4.3 and above allow passing all anonymous arguments of an
+ __extern_always_inline function to some other vararg function. */
+
+#define __va_arg_pack() __builtin_va_arg_pack ()
+#define __va_arg_pack_len() __builtin_va_arg_pack_len ()
+
+
+/* It is possible to compile containing GCC extensions even if GCC is
+ run in pedantic mode if the uses are carefully marked using the
+ `__extension__' keyword. But this is not generally available before
+ version 2.8. */
+
+
+
+
+/* __restrict is known in EGCS 1.2 and above. */
+
+
+
+
+
+
+
+
+/* ISO C99 also allows to declare arrays as non-overlapping. The syntax is
+ array_name[restrict]
+ GCC 3.1 supports this. */
+
+
+
+
+#define __restrict_arr
+
+
+
+#define __glibc_unlikely(cond) __builtin_expect ((cond), 0)
+#define __glibc_likely(cond) __builtin_expect ((cond), 1)
+
+
+
+
+
+
+#define __glibc_has_attribute(attr) __has_attribute (attr)
+
+
+
+
+
+
+/* Describes a char array whose address can safely be passed as the first
+ argument to strncpy and strncat, as the char array is not necessarily
+ a NUL-terminated string. */
+#define __attribute_nonstring__ __attribute__ ((__nonstring__))
+
+
+
+
+
+
+
+
+
+
+
+
+/* Determine the wordsize from the preprocessor defines. */
+
+
+#define __WORDSIZE 64
+
+
+
+
+
+
+
+#define __WORDSIZE_TIME64_COMPAT32 1
+/* Both x86-64 and x32 use the 64-bit system call interface. */
+#define __SYSCALL_WORDSIZE 64
+/* Properties of long double type. ldbl-96 version.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* long double is distinct from double, so there is nothing to
+ define here. */
+
+
+#define __LDBL_REDIR1(name,proto,alias) name proto
+#define __LDBL_REDIR(name,proto) name proto
+#define __LDBL_REDIR1_NTH(name,proto,alias) name proto __THROW
+#define __LDBL_REDIR_NTH(name,proto) name proto __THROW
+#define __LDBL_REDIR_DECL(name)
+
+#define __REDIRECT_LDBL(name,proto,alias) __REDIRECT (name, proto, alias)
+#define __REDIRECT_NTH_LDBL(name,proto,alias) __REDIRECT_NTH (name, proto, alias)
+
+
+
+
+/* __glibc_macro_warning (MESSAGE) issues warning MESSAGE. This is
+ intended for use in preprocessor macros.
+
+ Note: MESSAGE must be a _single_ string; concatenation of string
+ literals is not supported. */
+
+#define __glibc_macro_warning1(message) _Pragma (#message)
+#define __glibc_macro_warning(message) __glibc_macro_warning1 (GCC warning message)
+
+
+
+
+
+/* Generic selection (ISO C11) is a C-only feature, available in GCC
+ since version 4.9. Previous versions do not provide generic
+ selection, even though they might set __STDC_VERSION__ to 201112L,
+ when in -std=c11 mode. Thus, we must check for !defined __GNUC__
+ when testing __STDC_VERSION__ for generic selection support.
+ On the other hand, Clang also defines __GNUC__, so a clang-specific
+ check is required to enable the use of generic selection. */
+
+
+
+
+
+
+
+#define __HAVE_GENERIC_SELECTION 0
+
+
+
+
+/* If we don't have __REDIRECT, prototypes will be missing if
+ __USE_FILE_OFFSET64 but not __USE_LARGEFILE[64]. */
+
+
+
+
+
+
+
+/* Decide whether we can define 'extern inline' functions in headers. */
+
+
+
+
+
+
+
+/* This is here only because every header file already includes this one.
+ Get the definitions of all the appropriate `__stub_FUNCTION' symbols.
+ <gnu/stubs.h> contains `#define __stub_FUNCTION' when FUNCTION is a stub
+ that will always return failure (and set errno to ENOSYS). */
+/* This file is automatically generated.
+ This file selects the right generated file of `__stub_FUNCTION' macros
+ based on the architecture being compiled for. */
+
+
+
+
+
+
+/* This file is automatically generated.
+ It defines a symbol `__stub_FUNCTION' for each function
+ in the C library which is a stub, meaning it will fail
+ every time called, usually setting errno to ENOSYS. */
+
+
+
+
+
+#define __stub___compat_bdflush
+#define __stub_chflags
+#define __stub_fattach
+#define __stub_fchflags
+#define __stub_fdetach
+#define __stub_getmsg
+#define __stub_gtty
+#define __stub_lchmod
+#define __stub_putmsg
+#define __stub_revoke
+#define __stub_setlogin
+#define __stub_sigreturn
+#define __stub_sstk
+#define __stub_stty
+
+
+
+
+// Provide a declaration for the possibly deprecated gets function, as
+// glibc 2.15 and later does not declare gets for ISO C11 when
+// __GNU_SOURCE is defined.
+
+#undef _GLIBCXX_HAVE_GETS
+
+
+// Glibc 2.23 removed the obsolete isinf and isnan declarations. Check the
+// version dynamically in case it has changed since libstdc++ was configured.
+#define _GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC __GLIBC_PREREQ(2,23)
+
+
+// Since glibc 2.27 pthread_self() is usable without linking to libpthread.
+#define _GLIBCXX_NATIVE_THREAD_ID pthread_self()
+
+
+// Pick up any CPU-specific definitions.
+// Specific definitions for generic platforms -*- C++ -*-
+
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/cpu_defines.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+
+#define _GLIBCXX_CPU_DEFINES 1
+
+
+// If platform uses neither visibility nor psuedo-visibility,
+// specify empty default for namespace annotation macros.
+
+#define _GLIBCXX_PSEUDO_VISIBILITY(V)
+
+
+// Certain function definitions that are meant to be overridable from
+// user code are decorated with this macro. For some targets, this
+// macro causes these definitions to be weak.
+
+#define _GLIBCXX_WEAK_DEFINITION
+
+
+// By default, we assume that __GXX_WEAK__ also means that there is support
+// for declaring functions as weak while not defining such functions. This
+// allows for referring to functions provided by other libraries (e.g.,
+// libitm) without depending on them if the respective features are not used.
+
+#define _GLIBCXX_USE_WEAK_REF __GXX_WEAK__
+
+
+// Conditionally enable annotations for the Transactional Memory TS on C++11.
+// Most of the following conditions are due to limitations in the current
+// implementation.
+
+
+
+
+
+
+
+#define _GLIBCXX_TXN_SAFE
+#define _GLIBCXX_TXN_SAFE_DYN
+
+
+
+// In C++17 mathematical special functions are in namespace std.
+#define _GLIBCXX_USE_STD_SPEC_FUNCS 1
+
+
+
+
+
+// The remainder of the prewritten config is automatic; all the
+// user hooks are listed above.
+
+// Create a boolean flag to be used to determine if --fast-math is set.
+
+
+
+#define _GLIBCXX_FAST_MATH 0
+
+
+// This marks string literals in header files to be extracted for eventual
+// translation. It is primarily used for messages in thrown exceptions; see
+// src/functexcept.cc. We use __N because the more traditional _N is used
+// for something else under certain OSes (see BADNAMES).
+#define __N(msgid) (msgid)
+
+// For example, <windows.h> is known to #define min and max as macros...
+#undef min
+#undef max
+
+// N.B. these _GLIBCXX_USE_C99_XXX macros are defined unconditionally
+// so they should be tested with #if not with #ifdef.
+
+
+#define _GLIBCXX_USE_C99_MATH _GLIBCXX11_USE_C99_MATH
+
+
+#define _GLIBCXX_USE_C99_COMPLEX _GLIBCXX11_USE_C99_COMPLEX
+
+
+#define _GLIBCXX_USE_C99_STDIO _GLIBCXX11_USE_C99_STDIO
+
+
+#define _GLIBCXX_USE_C99_STDLIB _GLIBCXX11_USE_C99_STDLIB
+
+
+#define _GLIBCXX_USE_C99_WCHAR _GLIBCXX11_USE_C99_WCHAR
+
+
+// Unless explicitly specified, enable char8_t extensions only if the core
+// language char8_t feature macro is defined.
+
+
+
+
+
+
+
+
+
+/* Define if __float128 is supported on this host. */
+
+/* For powerpc64 don't use __float128 when it's the same type as long double. */
+
+#define _GLIBCXX_USE_FLOAT128 1
+
+
+
+// Define if float has the IEEE binary32 format.
+
+
+
+#define _GLIBCXX_FLOAT_IS_IEEE_BINARY32 1
+
+
+// Define if double has the IEEE binary64 format.
+
+
+
+#define _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 1
+
+
+
+
+
+
+
+#define _GLIBCXX_HAS_BUILTIN(B) __has_builtin(B)
+
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_IS_SAME 1
+
+
+
+#define _GLIBCXX_HAVE_BUILTIN_LAUNDER 1
+
+
+#undef _GLIBCXX_HAS_BUILTIN
+
+
+#define __glibcxx_assert_1(_Condition) if (__builtin_is_constant_evaluated()) { void __failed_assertion(); if (!bool(_Condition)) __failed_assertion(); } else
+
+
+
+
+
+
+
+
+
+
+
+#define __glibcxx_assert(_Condition) do { __glibcxx_assert_1(_Condition) { __glibcxx_assert_2(_Condition); } } while (false)
+
+
+
+
+
+
+// PSTL configuration
+
+
+// This header is not installed for freestanding:
+
+// Preserved here so we have some idea which version of upstream we've pulled in
+// #define PSTL_VERSION 9000
+
+// For now this defaults to being based on the presence of Thread Building Blocks
+
+#define _GLIBCXX_USE_TBB_PAR_BACKEND __has_include(<tbb/tbb.h>)
+
+// This section will need some rework when a new (default) backend type is added
+
+
+
+#define _PSTL_PAR_BACKEND_SERIAL
+
+
+#define _PSTL_ASSERT(_Condition) __glibcxx_assert(_Condition)
+#define _PSTL_ASSERT_MSG(_Condition,_Message) __glibcxx_assert(_Condition)
+
+// -*- C++ -*-
+//===-- pstl_config.h -----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+
+#define _PSTL_CONFIG_H
+
+// The version is XYYZ, where X is major, YY is minor, and Z is patch (i.e. X.YY.Z)
+#define _PSTL_VERSION 12000
+#define _PSTL_VERSION_MAJOR (_PSTL_VERSION / 1000)
+#define _PSTL_VERSION_MINOR ((_PSTL_VERSION % 1000) / 10)
+#define _PSTL_VERSION_PATCH (_PSTL_VERSION % 10)
+
+
+
+
+
+// Check the user-defined macro for warnings
+
+
+
+
+
+#define _PSTL_USAGE_WARNINGS 0
+
+
+// Portability "#pragma" definition
+
+
+
+#define _PSTL_PRAGMA(x) _Pragma(#x)
+
+
+#define _PSTL_STRING_AUX(x) #x
+#define _PSTL_STRING(x) _PSTL_STRING_AUX(x)
+#define _PSTL_STRING_CONCAT(x,y) x #y
+
+
+
+
+
+
+#define _PSTL_HIDE_FROM_ABI_PUSH
+#define _PSTL_HIDE_FROM_ABI_POP
+
+
+// note that when ICC or Clang is in use, _PSTL_GCC_VERSION might not fully match
+// the actual GCC version on the system.
+#define _PSTL_GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+
+
+
+
+
+
+// Enable SIMD for compilers that support OpenMP 4.0
+
+
+#define _PSTL_PRAGMA_SIMD _PSTL_PRAGMA(omp simd)
+#define _PSTL_PRAGMA_DECLARE_SIMD _PSTL_PRAGMA(omp declare simd)
+#define _PSTL_PRAGMA_SIMD_REDUCTION(PRM) _PSTL_PRAGMA(omp simd reduction(PRM))
+
+
+
+
+#define _PSTL_PRAGMA_FORCEINLINE
+
+
+
+
+
+
+
+#define _PSTL_PRAGMA_SIMD_SCAN(PRM)
+#define _PSTL_PRAGMA_SIMD_INCLUSIVE_SCAN(PRM)
+#define _PSTL_PRAGMA_SIMD_EXCLUSIVE_SCAN(PRM)
+
+
+// Should be defined to 1 for environments with a vendor implementation of C++17 execution policies
+#define _PSTL_CPP17_EXECUTION_POLICIES_PRESENT (_MSC_VER >= 1912)
+
+#define _PSTL_CPP14_2RANGE_MISMATCH_EQUAL_PRESENT (_MSC_VER >= 1900 || __cplusplus >= 201300L || __cpp_lib_robust_nonmodifying_seq_ops == 201304)
+
+#define _PSTL_CPP14_MAKE_REVERSE_ITERATOR_PRESENT (_MSC_VER >= 1900 || __cplusplus >= 201402L || __cpp_lib_make_reverse_iterator == 201402)
+
+#define _PSTL_CPP14_INTEGER_SEQUENCE_PRESENT (_MSC_VER >= 1900 || __cplusplus >= 201402L)
+#define _PSTL_CPP14_VARIABLE_TEMPLATES_PRESENT (!__INTEL_COMPILER || __INTEL_COMPILER >= 1700) && (_MSC_FULL_VER >= 190023918 || __cplusplus >= 201402L)
+
+
+#define _PSTL_EARLYEXIT_PRESENT (__INTEL_COMPILER >= 1800)
+#define _PSTL_MONOTONIC_PRESENT (__INTEL_COMPILER >= 1800)
+
+
+#define _PSTL_UDR_PRESENT 1
+
+
+
+
+#define _PSTL_UDS_PRESENT (__INTEL_COMPILER >= 1900 && __INTEL_COMPILER_BUILD_DATE >= 20180626)
+
+
+
+
+#define _PSTL_PRAGMA_SIMD_EARLYEXIT
+
+
+
+
+
+
+#define _PSTL_PRAGMA_SIMD_ORDERED_MONOTONIC(PRM)
+#define _PSTL_PRAGMA_SIMD_ORDERED_MONOTONIC_2ARGS(PRM1,PRM2)
+
+
+// Declaration of reduction functor, where
+// NAME - the name of the functor
+// OP - type of the callable object with the reduction operation
+// omp_in - refers to the local partial result
+// omp_out - refers to the final value of the combiner operator
+// omp_priv - refers to the private copy of the initial value
+// omp_orig - refers to the original variable to be reduced
+#define _PSTL_PRAGMA_DECLARE_REDUCTION(NAME,OP) _PSTL_PRAGMA(omp declare reduction(NAME:OP : omp_out(omp_in)) initializer(omp_priv = omp_orig))
+
+
+
+
+
+#define _PSTL_PRAGMA_VECTOR_UNALIGNED
+
+
+// Check the user-defined macro to use non-temporal stores
+
+
+
+#define _PSTL_USE_NONTEMPORAL_STORES_IF_ALLOWED
+
+
+
+
+
+#define _PSTL_PRAGMA_LOCATION " [Parallel STL message]: "
+
+
+#define _PSTL_PRAGMA_MESSAGE_IMPL(x) _PSTL_PRAGMA(message(_PSTL_STRING_CONCAT(_PSTL_PRAGMA_LOCATION, x)))
+
+
+
+
+
+#define _PSTL_PRAGMA_MESSAGE(x)
+#define _PSTL_PRAGMA_MESSAGE_POLICIES(x)
+
+
+// broken macros
+#define _PSTL_CPP11_STD_ROTATE_BROKEN ((__GLIBCXX__ && __GLIBCXX__ < 20150716) || (_MSC_VER && _MSC_VER < 1800))
+
+#define _PSTL_ICC_18_OMP_SIMD_BROKEN (__INTEL_COMPILER == 1800)
+
+
+
+
+// End of prewritten config; the settings discovered at configure time follow.
+/* config.h. Generated from config.h.in by configure. */
+/* config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if you have the `acosf' function. */
+#define _GLIBCXX_HAVE_ACOSF 1
+
+/* Define to 1 if you have the `acosl' function. */
+#define _GLIBCXX_HAVE_ACOSL 1
+
+/* Define to 1 if you have the `aligned_alloc' function. */
+#define _GLIBCXX_HAVE_ALIGNED_ALLOC 1
+
+/* Define to 1 if you have the <arpa/inet.h> header file. */
+#define _GLIBCXX_HAVE_ARPA_INET_H 1
+
+/* Define to 1 if you have the `asinf' function. */
+#define _GLIBCXX_HAVE_ASINF 1
+
+/* Define to 1 if you have the `asinl' function. */
+#define _GLIBCXX_HAVE_ASINL 1
+
+/* Define to 1 if the target assembler supports .symver directive. */
+#define _GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE 1
+
+/* Define to 1 if you have the `atan2f' function. */
+#define _GLIBCXX_HAVE_ATAN2F 1
+
+/* Define to 1 if you have the `atan2l' function. */
+#define _GLIBCXX_HAVE_ATAN2L 1
+
+/* Define to 1 if you have the `atanf' function. */
+#define _GLIBCXX_HAVE_ATANF 1
+
+/* Define to 1 if you have the `atanl' function. */
+#define _GLIBCXX_HAVE_ATANL 1
+
+/* Defined if shared_ptr reference counting should use atomic operations. */
+#define _GLIBCXX_HAVE_ATOMIC_LOCK_POLICY 1
+
+/* Define to 1 if you have the `at_quick_exit' function. */
+#define _GLIBCXX_HAVE_AT_QUICK_EXIT 1
+
+/* Define to 1 if the target assembler supports thread-local storage. */
+/* #undef _GLIBCXX_HAVE_CC_TLS */
+
+/* Define to 1 if you have the `ceilf' function. */
+#define _GLIBCXX_HAVE_CEILF 1
+
+/* Define to 1 if you have the `ceill' function. */
+#define _GLIBCXX_HAVE_CEILL 1
+
+/* Define to 1 if you have the <complex.h> header file. */
+#define _GLIBCXX_HAVE_COMPLEX_H 1
+
+/* Define to 1 if you have the `cosf' function. */
+#define _GLIBCXX_HAVE_COSF 1
+
+/* Define to 1 if you have the `coshf' function. */
+#define _GLIBCXX_HAVE_COSHF 1
+
+/* Define to 1 if you have the `coshl' function. */
+#define _GLIBCXX_HAVE_COSHL 1
+
+/* Define to 1 if you have the `cosl' function. */
+#define _GLIBCXX_HAVE_COSL 1
+
+/* Define to 1 if you have the <dirent.h> header file. */
+#define _GLIBCXX_HAVE_DIRENT_H 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define _GLIBCXX_HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <endian.h> header file. */
+#define _GLIBCXX_HAVE_ENDIAN_H 1
+
+/* Define to 1 if GCC 4.6 supported std::exception_ptr for the target */
+#define _GLIBCXX_HAVE_EXCEPTION_PTR_SINCE_GCC46 1
+
+/* Define to 1 if you have the <execinfo.h> header file. */
+#define _GLIBCXX_HAVE_EXECINFO_H 1
+
+/* Define to 1 if you have the `expf' function. */
+#define _GLIBCXX_HAVE_EXPF 1
+
+/* Define to 1 if you have the `expl' function. */
+#define _GLIBCXX_HAVE_EXPL 1
+
+/* Define to 1 if you have the `fabsf' function. */
+#define _GLIBCXX_HAVE_FABSF 1
+
+/* Define to 1 if you have the `fabsl' function. */
+#define _GLIBCXX_HAVE_FABSL 1
+
+/* Define to 1 if you have the <fcntl.h> header file. */
+#define _GLIBCXX_HAVE_FCNTL_H 1
+
+/* Define to 1 if you have the <fenv.h> header file. */
+#define _GLIBCXX_HAVE_FENV_H 1
+
+/* Define to 1 if you have the `finite' function. */
+#define _GLIBCXX_HAVE_FINITE 1
+
+/* Define to 1 if you have the `finitef' function. */
+#define _GLIBCXX_HAVE_FINITEF 1
+
+/* Define to 1 if you have the `finitel' function. */
+#define _GLIBCXX_HAVE_FINITEL 1
+
+/* Define to 1 if you have the <float.h> header file. */
+#define _GLIBCXX_HAVE_FLOAT_H 1
+
+/* Define to 1 if you have the `floorf' function. */
+#define _GLIBCXX_HAVE_FLOORF 1
+
+/* Define to 1 if you have the `floorl' function. */
+#define _GLIBCXX_HAVE_FLOORL 1
+
+/* Define to 1 if you have the `fmodf' function. */
+#define _GLIBCXX_HAVE_FMODF 1
+
+/* Define to 1 if you have the `fmodl' function. */
+#define _GLIBCXX_HAVE_FMODL 1
+
+/* Define to 1 if you have the `fpclass' function. */
+/* #undef _GLIBCXX_HAVE_FPCLASS */
+
+/* Define to 1 if you have the <fp.h> header file. */
+/* #undef _GLIBCXX_HAVE_FP_H */
+
+/* Define to 1 if you have the `frexpf' function. */
+#define _GLIBCXX_HAVE_FREXPF 1
+
+/* Define to 1 if you have the `frexpl' function. */
+#define _GLIBCXX_HAVE_FREXPL 1
+
+/* Define if _Unwind_GetIPInfo is available. */
+#define _GLIBCXX_HAVE_GETIPINFO 1
+
+/* Define if gets is available in <stdio.h> before C++14. */
+#define _GLIBCXX_HAVE_GETS 1
+
+/* Define to 1 if you have the `hypot' function. */
+#define _GLIBCXX_HAVE_HYPOT 1
+
+/* Define to 1 if you have the `hypotf' function. */
+#define _GLIBCXX_HAVE_HYPOTF 1
+
+/* Define to 1 if you have the `hypotl' function. */
+#define _GLIBCXX_HAVE_HYPOTL 1
+
+/* Define if you have the iconv() function. */
+#define _GLIBCXX_HAVE_ICONV 1
+
+/* Define to 1 if you have the <ieeefp.h> header file. */
+/* #undef _GLIBCXX_HAVE_IEEEFP_H */
+
+/* Define if int64_t is available in <stdint.h>. */
+#define _GLIBCXX_HAVE_INT64_T 1
+
+/* Define if int64_t is a long. */
+#define _GLIBCXX_HAVE_INT64_T_LONG 1
+
+/* Define if int64_t is a long long. */
+/* #undef _GLIBCXX_HAVE_INT64_T_LONG_LONG */
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define _GLIBCXX_HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the `isinf' function. */
+/* #undef _GLIBCXX_HAVE_ISINF */
+
+/* Define to 1 if you have the `isinff' function. */
+#define _GLIBCXX_HAVE_ISINFF 1
+
+/* Define to 1 if you have the `isinfl' function. */
+#define _GLIBCXX_HAVE_ISINFL 1
+
+/* Define to 1 if you have the `isnan' function. */
+/* #undef _GLIBCXX_HAVE_ISNAN */
+
+/* Define to 1 if you have the `isnanf' function. */
+#define _GLIBCXX_HAVE_ISNANF 1
+
+/* Define to 1 if you have the `isnanl' function. */
+#define _GLIBCXX_HAVE_ISNANL 1
+
+/* Defined if iswblank exists. */
+#define _GLIBCXX_HAVE_ISWBLANK 1
+
+/* Define if LC_MESSAGES is available in <locale.h>. */
+#define _GLIBCXX_HAVE_LC_MESSAGES 1
+
+/* Define to 1 if you have the `ldexpf' function. */
+#define _GLIBCXX_HAVE_LDEXPF 1
+
+/* Define to 1 if you have the `ldexpl' function. */
+#define _GLIBCXX_HAVE_LDEXPL 1
+
+/* Define to 1 if you have the <libintl.h> header file. */
+#define _GLIBCXX_HAVE_LIBINTL_H 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_AS 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_DATA 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_FSIZE 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_RSS 1
+
+/* Only used in build directory testsuite_hooks.h. */
+#define _GLIBCXX_HAVE_LIMIT_VMEM 0
+
+/* Define if link is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_LINK 1
+
+/* Define if futex syscall is available. */
+#define _GLIBCXX_HAVE_LINUX_FUTEX 1
+
+/* Define to 1 if you have the <linux/random.h> header file. */
+#define _GLIBCXX_HAVE_LINUX_RANDOM_H 1
+
+/* Define to 1 if you have the <linux/types.h> header file. */
+#define _GLIBCXX_HAVE_LINUX_TYPES_H 1
+
+/* Define to 1 if you have the <locale.h> header file. */
+#define _GLIBCXX_HAVE_LOCALE_H 1
+
+/* Define to 1 if you have the `log10f' function. */
+#define _GLIBCXX_HAVE_LOG10F 1
+
+/* Define to 1 if you have the `log10l' function. */
+#define _GLIBCXX_HAVE_LOG10L 1
+
+/* Define to 1 if you have the `logf' function. */
+#define _GLIBCXX_HAVE_LOGF 1
+
+/* Define to 1 if you have the `logl' function. */
+#define _GLIBCXX_HAVE_LOGL 1
+
+/* Define to 1 if you have the <machine/endian.h> header file. */
+/* #undef _GLIBCXX_HAVE_MACHINE_ENDIAN_H */
+
+/* Define to 1 if you have the <machine/param.h> header file. */
+/* #undef _GLIBCXX_HAVE_MACHINE_PARAM_H */
+
+/* Define if mbstate_t exists in wchar.h. */
+#define _GLIBCXX_HAVE_MBSTATE_T 1
+
+/* Define to 1 if you have the `memalign' function. */
+#define _GLIBCXX_HAVE_MEMALIGN 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define _GLIBCXX_HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the `modf' function. */
+#define _GLIBCXX_HAVE_MODF 1
+
+/* Define to 1 if you have the `modff' function. */
+#define _GLIBCXX_HAVE_MODFF 1
+
+/* Define to 1 if you have the `modfl' function. */
+#define _GLIBCXX_HAVE_MODFL 1
+
+/* Define to 1 if you have the <nan.h> header file. */
+/* #undef _GLIBCXX_HAVE_NAN_H */
+
+/* Define to 1 if you have the <netdb.h> header file. */
+#define _GLIBCXX_HAVE_NETDB_H 1
+
+/* Define to 1 if you have the <netinet/in.h> header file. */
+#define _GLIBCXX_HAVE_NETINET_IN_H 1
+
+/* Define to 1 if you have the <netinet/tcp.h> header file. */
+#define _GLIBCXX_HAVE_NETINET_TCP_H 1
+
+/* Define if <math.h> defines obsolete isinf function. */
+/* #undef _GLIBCXX_HAVE_OBSOLETE_ISINF */
+
+/* Define if <math.h> defines obsolete isnan function. */
+/* #undef _GLIBCXX_HAVE_OBSOLETE_ISNAN */
+
+/* Define if poll is available in <poll.h>. */
+#define _GLIBCXX_HAVE_POLL 1
+
+/* Define to 1 if you have the <poll.h> header file. */
+#define _GLIBCXX_HAVE_POLL_H 1
+
+/* Define to 1 if you have the `posix_memalign' function. */
+#define _GLIBCXX_HAVE_POSIX_MEMALIGN 1
+
+/* Define to 1 if you have the `powf' function. */
+#define _GLIBCXX_HAVE_POWF 1
+
+/* Define to 1 if you have the `powl' function. */
+#define _GLIBCXX_HAVE_POWL 1
+
+/* Define to 1 if you have the `qfpclass' function. */
+/* #undef _GLIBCXX_HAVE_QFPCLASS */
+
+/* Define to 1 if you have the `quick_exit' function. */
+#define _GLIBCXX_HAVE_QUICK_EXIT 1
+
+/* Define if readlink is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_READLINK 1
+
+/* Define to 1 if you have the `setenv' function. */
+#define _GLIBCXX_HAVE_SETENV 1
+
+/* Define to 1 if you have the `sincos' function. */
+#define _GLIBCXX_HAVE_SINCOS 1
+
+/* Define to 1 if you have the `sincosf' function. */
+#define _GLIBCXX_HAVE_SINCOSF 1
+
+/* Define to 1 if you have the `sincosl' function. */
+#define _GLIBCXX_HAVE_SINCOSL 1
+
+/* Define to 1 if you have the `sinf' function. */
+#define _GLIBCXX_HAVE_SINF 1
+
+/* Define to 1 if you have the `sinhf' function. */
+#define _GLIBCXX_HAVE_SINHF 1
+
+/* Define to 1 if you have the `sinhl' function. */
+#define _GLIBCXX_HAVE_SINHL 1
+
+/* Define to 1 if you have the `sinl' function. */
+#define _GLIBCXX_HAVE_SINL 1
+
+/* Defined if sleep exists. */
+/* #undef _GLIBCXX_HAVE_SLEEP */
+
+/* Define to 1 if you have the `sockatmark' function. */
+#define _GLIBCXX_HAVE_SOCKATMARK 1
+
+/* Define to 1 if you have the `sqrtf' function. */
+#define _GLIBCXX_HAVE_SQRTF 1
+
+/* Define to 1 if you have the `sqrtl' function. */
+#define _GLIBCXX_HAVE_SQRTL 1
+
+/* Define to 1 if you have the <stdalign.h> header file. */
+#define _GLIBCXX_HAVE_STDALIGN_H 1
+
+/* Define to 1 if you have the <stdbool.h> header file. */
+#define _GLIBCXX_HAVE_STDBOOL_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define _GLIBCXX_HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define _GLIBCXX_HAVE_STDLIB_H 1
+
+/* Define if strerror_l is available in <string.h>. */
+#define _GLIBCXX_HAVE_STRERROR_L 1
+
+/* Define if strerror_r is available in <string.h>. */
+#define _GLIBCXX_HAVE_STRERROR_R 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define _GLIBCXX_HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define _GLIBCXX_HAVE_STRING_H 1
+
+/* Define to 1 if you have the `strtof' function. */
+#define _GLIBCXX_HAVE_STRTOF 1
+
+/* Define to 1 if you have the `strtold' function. */
+#define _GLIBCXX_HAVE_STRTOLD 1
+
+/* Define to 1 if `d_type' is a member of `struct dirent'. */
+#define _GLIBCXX_HAVE_STRUCT_DIRENT_D_TYPE 1
+
+/* Define if strxfrm_l is available in <string.h>. */
+#define _GLIBCXX_HAVE_STRXFRM_L 1
+
+/* Define if symlink is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_SYMLINK 1
+
+/* Define to 1 if the target runtime linker supports binding the same symbol
+ to different versions. */
+#define _GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT 1
+
+/* Define to 1 if you have the <sys/filio.h> header file. */
+/* #undef _GLIBCXX_HAVE_SYS_FILIO_H */
+
+/* Define to 1 if you have the <sys/ioctl.h> header file. */
+#define _GLIBCXX_HAVE_SYS_IOCTL_H 1
+
+/* Define to 1 if you have the <sys/ipc.h> header file. */
+#define _GLIBCXX_HAVE_SYS_IPC_H 1
+
+/* Define to 1 if you have the <sys/isa_defs.h> header file. */
+/* #undef _GLIBCXX_HAVE_SYS_ISA_DEFS_H */
+
+/* Define to 1 if you have the <sys/machine.h> header file. */
+/* #undef _GLIBCXX_HAVE_SYS_MACHINE_H */
+
+/* Define to 1 if you have the <sys/param.h> header file. */
+#define _GLIBCXX_HAVE_SYS_PARAM_H 1
+
+/* Define to 1 if you have the <sys/resource.h> header file. */
+#define _GLIBCXX_HAVE_SYS_RESOURCE_H 1
+
+/* Define to 1 if you have a suitable <sys/sdt.h> header file */
+#define _GLIBCXX_HAVE_SYS_SDT_H 1
+
+/* Define to 1 if you have the <sys/sem.h> header file. */
+#define _GLIBCXX_HAVE_SYS_SEM_H 1
+
+/* Define to 1 if you have the <sys/socket.h> header file. */
+#define _GLIBCXX_HAVE_SYS_SOCKET_H 1
+
+/* Define to 1 if you have the <sys/statvfs.h> header file. */
+#define _GLIBCXX_HAVE_SYS_STATVFS_H 1
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define _GLIBCXX_HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/sysinfo.h> header file. */
+#define _GLIBCXX_HAVE_SYS_SYSINFO_H 1
+
+/* Define to 1 if you have the <sys/time.h> header file. */
+#define _GLIBCXX_HAVE_SYS_TIME_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define _GLIBCXX_HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <sys/uio.h> header file. */
+#define _GLIBCXX_HAVE_SYS_UIO_H 1
+
+/* Define if S_IFREG is available in <sys/stat.h>. */
+/* #undef _GLIBCXX_HAVE_S_IFREG */
+
+/* Define if S_ISREG is available in <sys/stat.h>. */
+#define _GLIBCXX_HAVE_S_ISREG 1
+
+/* Define to 1 if you have the `tanf' function. */
+#define _GLIBCXX_HAVE_TANF 1
+
+/* Define to 1 if you have the `tanhf' function. */
+#define _GLIBCXX_HAVE_TANHF 1
+
+/* Define to 1 if you have the `tanhl' function. */
+#define _GLIBCXX_HAVE_TANHL 1
+
+/* Define to 1 if you have the `tanl' function. */
+#define _GLIBCXX_HAVE_TANL 1
+
+/* Define to 1 if you have the <tgmath.h> header file. */
+#define _GLIBCXX_HAVE_TGMATH_H 1
+
+/* Define to 1 if you have the `timespec_get' function. */
+#define _GLIBCXX_HAVE_TIMESPEC_GET 1
+
+/* Define to 1 if the target supports thread-local storage. */
+#define _GLIBCXX_HAVE_TLS 1
+
+/* Define if truncate is available in <unistd.h>. */
+#define _GLIBCXX_HAVE_TRUNCATE 1
+
+/* Define to 1 if you have the <uchar.h> header file. */
+#define _GLIBCXX_HAVE_UCHAR_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define _GLIBCXX_HAVE_UNISTD_H 1
+
+/* Define to 1 if you have the `uselocale' function. */
+#define _GLIBCXX_HAVE_USELOCALE 1
+
+/* Defined if usleep exists. */
+/* #undef _GLIBCXX_HAVE_USLEEP */
+
+/* Define to 1 if you have the <utime.h> header file. */
+#define _GLIBCXX_HAVE_UTIME_H 1
+
+/* Defined if vfwscanf exists. */
+#define _GLIBCXX_HAVE_VFWSCANF 1
+
+/* Defined if vswscanf exists. */
+#define _GLIBCXX_HAVE_VSWSCANF 1
+
+/* Defined if vwscanf exists. */
+#define _GLIBCXX_HAVE_VWSCANF 1
+
+/* Define to 1 if you have the <wchar.h> header file. */
+#define _GLIBCXX_HAVE_WCHAR_H 1
+
+/* Defined if wcstof exists. */
+#define _GLIBCXX_HAVE_WCSTOF 1
+
+/* Define to 1 if you have the <wctype.h> header file. */
+#define _GLIBCXX_HAVE_WCTYPE_H 1
+
+/* Defined if Sleep exists. */
+/* #undef _GLIBCXX_HAVE_WIN32_SLEEP */
+
+/* Define if writev is available in <sys/uio.h>. */
+#define _GLIBCXX_HAVE_WRITEV 1
+
+/* Define to 1 if you have the <xlocale.h> header file. */
+/* #undef _GLIBCXX_HAVE_XLOCALE_H */
+
+/* Define to 1 if you have the `_acosf' function. */
+/* #undef _GLIBCXX_HAVE__ACOSF */
+
+/* Define to 1 if you have the `_acosl' function. */
+/* #undef _GLIBCXX_HAVE__ACOSL */
+
+/* Define to 1 if you have the `_aligned_malloc' function. */
+/* #undef _GLIBCXX_HAVE__ALIGNED_MALLOC */
+
+/* Define to 1 if you have the `_asinf' function. */
+/* #undef _GLIBCXX_HAVE__ASINF */
+
+/* Define to 1 if you have the `_asinl' function. */
+/* #undef _GLIBCXX_HAVE__ASINL */
+
+/* Define to 1 if you have the `_atan2f' function. */
+/* #undef _GLIBCXX_HAVE__ATAN2F */
+
+/* Define to 1 if you have the `_atan2l' function. */
+/* #undef _GLIBCXX_HAVE__ATAN2L */
+
+/* Define to 1 if you have the `_atanf' function. */
+/* #undef _GLIBCXX_HAVE__ATANF */
+
+/* Define to 1 if you have the `_atanl' function. */
+/* #undef _GLIBCXX_HAVE__ATANL */
+
+/* Define to 1 if you have the `_ceilf' function. */
+/* #undef _GLIBCXX_HAVE__CEILF */
+
+/* Define to 1 if you have the `_ceill' function. */
+/* #undef _GLIBCXX_HAVE__CEILL */
+
+/* Define to 1 if you have the `_cosf' function. */
+/* #undef _GLIBCXX_HAVE__COSF */
+
+/* Define to 1 if you have the `_coshf' function. */
+/* #undef _GLIBCXX_HAVE__COSHF */
+
+/* Define to 1 if you have the `_coshl' function. */
+/* #undef _GLIBCXX_HAVE__COSHL */
+
+/* Define to 1 if you have the `_cosl' function. */
+/* #undef _GLIBCXX_HAVE__COSL */
+
+/* Define to 1 if you have the `_expf' function. */
+/* #undef _GLIBCXX_HAVE__EXPF */
+
+/* Define to 1 if you have the `_expl' function. */
+/* #undef _GLIBCXX_HAVE__EXPL */
+
+/* Define to 1 if you have the `_fabsf' function. */
+/* #undef _GLIBCXX_HAVE__FABSF */
+
+/* Define to 1 if you have the `_fabsl' function. */
+/* #undef _GLIBCXX_HAVE__FABSL */
+
+/* Define to 1 if you have the `_finite' function. */
+/* #undef _GLIBCXX_HAVE__FINITE */
+
+/* Define to 1 if you have the `_finitef' function. */
+/* #undef _GLIBCXX_HAVE__FINITEF */
+
+/* Define to 1 if you have the `_finitel' function. */
+/* #undef _GLIBCXX_HAVE__FINITEL */
+
+/* Define to 1 if you have the `_floorf' function. */
+/* #undef _GLIBCXX_HAVE__FLOORF */
+
+/* Define to 1 if you have the `_floorl' function. */
+/* #undef _GLIBCXX_HAVE__FLOORL */
+
+/* Define to 1 if you have the `_fmodf' function. */
+/* #undef _GLIBCXX_HAVE__FMODF */
+
+/* Define to 1 if you have the `_fmodl' function. */
+/* #undef _GLIBCXX_HAVE__FMODL */
+
+/* Define to 1 if you have the `_fpclass' function. */
+/* #undef _GLIBCXX_HAVE__FPCLASS */
+
+/* Define to 1 if you have the `_frexpf' function. */
+/* #undef _GLIBCXX_HAVE__FREXPF */
+
+/* Define to 1 if you have the `_frexpl' function. */
+/* #undef _GLIBCXX_HAVE__FREXPL */
+
+/* Define to 1 if you have the `_hypot' function. */
+/* #undef _GLIBCXX_HAVE__HYPOT */
+
+/* Define to 1 if you have the `_hypotf' function. */
+/* #undef _GLIBCXX_HAVE__HYPOTF */
+
+/* Define to 1 if you have the `_hypotl' function. */
+/* #undef _GLIBCXX_HAVE__HYPOTL */
+
+/* Define to 1 if you have the `_isinf' function. */
+/* #undef _GLIBCXX_HAVE__ISINF */
+
+/* Define to 1 if you have the `_isinff' function. */
+/* #undef _GLIBCXX_HAVE__ISINFF */
+
+/* Define to 1 if you have the `_isinfl' function. */
+/* #undef _GLIBCXX_HAVE__ISINFL */
+
+/* Define to 1 if you have the `_isnan' function. */
+/* #undef _GLIBCXX_HAVE__ISNAN */
+
+/* Define to 1 if you have the `_isnanf' function. */
+/* #undef _GLIBCXX_HAVE__ISNANF */
+
+/* Define to 1 if you have the `_isnanl' function. */
+/* #undef _GLIBCXX_HAVE__ISNANL */
+
+/* Define to 1 if you have the `_ldexpf' function. */
+/* #undef _GLIBCXX_HAVE__LDEXPF */
+
+/* Define to 1 if you have the `_ldexpl' function. */
+/* #undef _GLIBCXX_HAVE__LDEXPL */
+
+/* Define to 1 if you have the `_log10f' function. */
+/* #undef _GLIBCXX_HAVE__LOG10F */
+
+/* Define to 1 if you have the `_log10l' function. */
+/* #undef _GLIBCXX_HAVE__LOG10L */
+
+/* Define to 1 if you have the `_logf' function. */
+/* #undef _GLIBCXX_HAVE__LOGF */
+
+/* Define to 1 if you have the `_logl' function. */
+/* #undef _GLIBCXX_HAVE__LOGL */
+
+/* Define to 1 if you have the `_modf' function. */
+/* #undef _GLIBCXX_HAVE__MODF */
+
+/* Define to 1 if you have the `_modff' function. */
+/* #undef _GLIBCXX_HAVE__MODFF */
+
+/* Define to 1 if you have the `_modfl' function. */
+/* #undef _GLIBCXX_HAVE__MODFL */
+
+/* Define to 1 if you have the `_powf' function. */
+/* #undef _GLIBCXX_HAVE__POWF */
+
+/* Define to 1 if you have the `_powl' function. */
+/* #undef _GLIBCXX_HAVE__POWL */
+
+/* Define to 1 if you have the `_qfpclass' function. */
+/* #undef _GLIBCXX_HAVE__QFPCLASS */
+
+/* Define to 1 if you have the `_sincos' function. */
+/* #undef _GLIBCXX_HAVE__SINCOS */
+
+/* Define to 1 if you have the `_sincosf' function. */
+/* #undef _GLIBCXX_HAVE__SINCOSF */
+
+/* Define to 1 if you have the `_sincosl' function. */
+/* #undef _GLIBCXX_HAVE__SINCOSL */
+
+/* Define to 1 if you have the `_sinf' function. */
+/* #undef _GLIBCXX_HAVE__SINF */
+
+/* Define to 1 if you have the `_sinhf' function. */
+/* #undef _GLIBCXX_HAVE__SINHF */
+
+/* Define to 1 if you have the `_sinhl' function. */
+/* #undef _GLIBCXX_HAVE__SINHL */
+
+/* Define to 1 if you have the `_sinl' function. */
+/* #undef _GLIBCXX_HAVE__SINL */
+
+/* Define to 1 if you have the `_sqrtf' function. */
+/* #undef _GLIBCXX_HAVE__SQRTF */
+
+/* Define to 1 if you have the `_sqrtl' function. */
+/* #undef _GLIBCXX_HAVE__SQRTL */
+
+/* Define to 1 if you have the `_tanf' function. */
+/* #undef _GLIBCXX_HAVE__TANF */
+
+/* Define to 1 if you have the `_tanhf' function. */
+/* #undef _GLIBCXX_HAVE__TANHF */
+
+/* Define to 1 if you have the `_tanhl' function. */
+/* #undef _GLIBCXX_HAVE__TANHL */
+
+/* Define to 1 if you have the `_tanl' function. */
+/* #undef _GLIBCXX_HAVE__TANL */
+
+/* Define to 1 if you have the `_wfopen' function. */
+/* #undef _GLIBCXX_HAVE__WFOPEN */
+
+/* Define to 1 if you have the `__cxa_thread_atexit' function. */
+/* #undef _GLIBCXX_HAVE___CXA_THREAD_ATEXIT */
+
+/* Define to 1 if you have the `__cxa_thread_atexit_impl' function. */
+#define _GLIBCXX_HAVE___CXA_THREAD_ATEXIT_IMPL 1
+
+/* Define as const if the declaration of iconv() needs const. */
+#define _GLIBCXX_ICONV_CONST
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+ */
+#define LT_OBJDIR ".libs/"
+
+/* Defined if no way to sleep is available. */
+/* #undef NO_SLEEP */
+
+/* Name of package */
+/* #undef _GLIBCXX_PACKAGE */
+
+/* Define to the address where bug reports for this package should be sent. */
+#define _GLIBCXX_PACKAGE_BUGREPORT ""
+
+/* Define to the full name of this package. */
+#define _GLIBCXX_PACKAGE_NAME "package-unused"
+
+/* Define to the full name and version of this package. */
+#define _GLIBCXX_PACKAGE_STRING "package-unused version-unused"
+
+/* Define to the one symbol short name of this package. */
+#define _GLIBCXX_PACKAGE_TARNAME "libstdc++"
+
+/* Define to the home page for this package. */
+#define _GLIBCXX_PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define _GLIBCXX_PACKAGE__GLIBCXX_VERSION "version-unused"
+
+/* The size of `char', as computed by sizeof. */
+/* #undef SIZEOF_CHAR */
+
+/* The size of `int', as computed by sizeof. */
+/* #undef SIZEOF_INT */
+
+/* The size of `long', as computed by sizeof. */
+/* #undef SIZEOF_LONG */
+
+/* The size of `short', as computed by sizeof. */
+/* #undef SIZEOF_SHORT */
+
+/* The size of `void *', as computed by sizeof. */
+/* #undef SIZEOF_VOID_P */
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Version number of package */
+/* #undef _GLIBCXX_VERSION */
+
+/* Enable large inode numbers on Mac OS X 10.5. */
+
+#define _GLIBCXX_DARWIN_USE_64_BIT_INODE 1
+
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _GLIBCXX_FILE_OFFSET_BITS */
+
+/* Define if C99 functions in <complex.h> should be used in <complex> for
+ C++11. Using compiler builtins for these functions requires corresponding
+ C99 library functions to be present. */
+#define _GLIBCXX11_USE_C99_COMPLEX 1
+
+/* Define if C99 functions or macros in <math.h> should be imported in <cmath>
+ in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_MATH 1
+
+/* Define if C99 functions or macros in <stdio.h> should be imported in
+ <cstdio> in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_STDIO 1
+
+/* Define if C99 functions or macros in <stdlib.h> should be imported in
+ <cstdlib> in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_STDLIB 1
+
+/* Define if C99 functions or macros in <wchar.h> should be imported in
+ <cwchar> in namespace std for C++11. */
+#define _GLIBCXX11_USE_C99_WCHAR 1
+
+/* Define if C99 functions in <complex.h> should be used in <complex> for
+ C++98. Using compiler builtins for these functions requires corresponding
+ C99 library functions to be present. */
+#define _GLIBCXX98_USE_C99_COMPLEX 1
+
+/* Define if C99 functions or macros in <math.h> should be imported in <cmath>
+ in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_MATH 1
+
+/* Define if C99 functions or macros in <stdio.h> should be imported in
+ <cstdio> in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_STDIO 1
+
+/* Define if C99 functions or macros in <stdlib.h> should be imported in
+ <cstdlib> in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_STDLIB 1
+
+/* Define if C99 functions or macros in <wchar.h> should be imported in
+ <cwchar> in namespace std for C++98. */
+#define _GLIBCXX98_USE_C99_WCHAR 1
+
+/* Define if the compiler supports C++11 atomics. */
+#define _GLIBCXX_ATOMIC_BUILTINS 1
+
+/* Define to use concept checking code from the boost libraries. */
+/* #undef _GLIBCXX_CONCEPT_CHECKS */
+
+/* Define to 1 if a fully dynamic basic_string is wanted, 0 to disable,
+ undefined for platform defaults */
+#define _GLIBCXX_FULLY_DYNAMIC_STRING 0
+
+/* Define if gthreads library is available. */
+#define _GLIBCXX_HAS_GTHREADS 1
+
+/* Define to 1 if POSIX Semaphores with sem_timedwait are available in
+ <semaphore.h>. */
+#define _GLIBCXX__GLIBCXX_HAVE_POSIX_SEMAPHORE 1
+
+/* Define to 1 if a full hosted library is built, or 0 if freestanding. */
+#define _GLIBCXX_HOSTED 1
+
+/* Define if compatibility should be provided for alternative 128-bit long
+ double formats. */
+
+/* Define if compatibility should be provided for -mlong-double-64. */
+
+/* Define to the letter to which size_t is mangled. */
+#define _GLIBCXX_MANGLE_SIZE_T m
+
+/* Define if C99 llrint and llround functions are missing from <math.h>. */
+/* #undef _GLIBCXX_NO_C99_ROUNDING_FUNCS */
+
+/* Define if ptrdiff_t is int. */
+/* #undef _GLIBCXX_PTRDIFF_T_IS_INT */
+
+/* Define if using setrlimit to set resource limits during "make check" */
+#define _GLIBCXX_RES_LIMITS 1
+
+/* Define if size_t is unsigned int. */
+/* #undef _GLIBCXX_SIZE_T_IS_UINT */
+
+/* Define to the value of the EOF integer constant. */
+#define _GLIBCXX_STDIO_EOF -1
+
+/* Define to the value of the SEEK_CUR integer constant. */
+#define _GLIBCXX_STDIO_SEEK_CUR 1
+
+/* Define to the value of the SEEK_END integer constant. */
+#define _GLIBCXX_STDIO_SEEK_END 2
+
+/* Define to use symbol versioning in the shared library. */
+#define _GLIBCXX_SYMVER 1
+
+/* Define to use darwin versioning in the shared library. */
+/* #undef _GLIBCXX_SYMVER_DARWIN */
+
+/* Define to use GNU versioning in the shared library. */
+#define _GLIBCXX_SYMVER_GNU 1
+
+/* Define to use GNU namespace versioning in the shared library. */
+/* #undef _GLIBCXX_SYMVER_GNU_NAMESPACE */
+
+/* Define to use Sun versioning in the shared library. */
+/* #undef _GLIBCXX_SYMVER_SUN */
+
+/* Define if C11 functions in <uchar.h> should be imported into namespace std
+ in <cuchar>. */
+#define _GLIBCXX_USE_C11_UCHAR_CXX11 1
+
+/* Define if C99 functions or macros from <wchar.h>, <math.h>, <complex.h>,
+ <stdio.h>, and <stdlib.h> can be used or exposed. */
+#define _GLIBCXX_USE_C99 1
+
+/* Define if C99 functions in <complex.h> should be used in <tr1/complex>.
+ Using compiler builtins for these functions requires corresponding C99
+ library functions to be present. */
+#define _GLIBCXX_USE_C99_COMPLEX_TR1 1
+
+/* Define if C99 functions in <ctype.h> should be imported in <tr1/cctype> in
+ namespace std::tr1. */
+#define _GLIBCXX_USE_C99_CTYPE_TR1 1
+
+/* Define if C99 functions in <fenv.h> should be imported in <tr1/cfenv> in
+ namespace std::tr1. */
+#define _GLIBCXX_USE_C99_FENV_TR1 1
+
+/* Define if C99 functions in <inttypes.h> should be imported in
+ <tr1/cinttypes> in namespace std::tr1. */
+#define _GLIBCXX_USE_C99_INTTYPES_TR1 1
+
+/* Define if wchar_t C99 functions in <inttypes.h> should be imported in
+ <tr1/cinttypes> in namespace std::tr1. */
+#define _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1 1
+
+/* Define if C99 functions or macros in <math.h> should be imported in
+ <tr1/cmath> in namespace std::tr1. */
+#define _GLIBCXX_USE_C99_MATH_TR1 1
+
+/* Define if C99 types in <stdint.h> should be imported in <tr1/cstdint> in
+ namespace std::tr1. */
+#define _GLIBCXX_USE_C99_STDINT_TR1 1
+
+/* Defined if clock_gettime syscall has monotonic and realtime clock support.
+ */
+/* #undef _GLIBCXX_USE_CLOCK_GETTIME_SYSCALL */
+
+/* Defined if clock_gettime has monotonic clock support. */
+#define _GLIBCXX_USE_CLOCK_MONOTONIC 1
+
+/* Defined if clock_gettime has realtime clock support. */
+#define _GLIBCXX_USE_CLOCK_REALTIME 1
+
+/* Define if ISO/IEC TR 24733 decimal floating point types are supported on
+ this host. */
+#define _GLIBCXX_USE_DECIMAL_FLOAT 1
+
+/* Define if /dev/random and /dev/urandom are available for
+ std::random_device. */
+#define _GLIBCXX_USE_DEV_RANDOM 1
+
+/* Define if fchmod is available in <sys/stat.h>. */
+#define _GLIBCXX_USE_FCHMOD 1
+
+/* Define if fchmodat is available in <sys/stat.h>. */
+#define _GLIBCXX_USE_FCHMODAT 1
+
+/* Defined if gettimeofday is available. */
+#define _GLIBCXX_USE_GETTIMEOFDAY 1
+
+/* Define if get_nprocs is available in <sys/sysinfo.h>. */
+#define _GLIBCXX_USE_GET_NPROCS 1
+
+/* Define if __int128 is supported on this host. */
+#define _GLIBCXX_USE_INT128 1
+
+/* Define if LFS support is available. */
+#define _GLIBCXX_USE_LFS 1
+
+/* Define if code specialized for long long should be used. */
+#define _GLIBCXX_USE_LONG_LONG 1
+
+/* Define if lstat is available in <sys/stat.h>. */
+#define _GLIBCXX_USE_LSTAT 1
+
+/* Defined if nanosleep is available. */
+#define _GLIBCXX_USE_NANOSLEEP 1
+
+/* Define if NLS translations are to be used. */
+#define _GLIBCXX_USE_NLS 1
+
+/* Define if pthreads_num_processors_np is available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREADS_NUM_PROCESSORS_NP */
+
+/* Define if pthread_cond_clockwait is available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREAD_COND_CLOCKWAIT */
+
+/* Define if pthread_mutex_clocklock is available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK */
+
+/* Define if pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock are
+ available in <pthread.h>. */
+/* #undef _GLIBCXX_USE_PTHREAD_RWLOCK_CLOCKLOCK */
+
+/* Define if POSIX read/write locks are available in <gthr.h>. */
+#define _GLIBCXX_USE_PTHREAD_RWLOCK_T 1
+
+/* Define if /dev/random and /dev/urandom are available for the random_device
+ of TR1 (Chapter 5.1). */
+#define _GLIBCXX_USE_RANDOM_TR1 1
+
+/* Define if usable realpath is available in <stdlib.h>. */
+#define _GLIBCXX_USE_REALPATH 1
+
+/* Defined if sched_yield is available. */
+#define _GLIBCXX_USE_SCHED_YIELD 1
+
+/* Define if _SC_NPROCESSORS_ONLN is available in <unistd.h>. */
+#define _GLIBCXX_USE_SC_NPROCESSORS_ONLN 1
+
+/* Define if _SC_NPROC_ONLN is available in <unistd.h>. */
+/* #undef _GLIBCXX_USE_SC_NPROC_ONLN */
+
+/* Define if sendfile is available in <sys/sendfile.h>. */
+#define _GLIBCXX_USE_SENDFILE 1
+
+/* Define to restrict std::__basic_file<> to stdio APIs. */
+/* #undef _GLIBCXX_USE_STDIO_PURE */
+
+/* Define if struct stat has timespec members. */
+#define _GLIBCXX_USE_ST_MTIM 1
+
+/* Define if sysctl(), CTL_HW and HW_NCPU are available in <sys/sysctl.h>. */
+/* #undef _GLIBCXX_USE_SYSCTL_HW_NCPU */
+
+/* Define if obsolescent tmpnam is available in <stdio.h>. */
+#define _GLIBCXX_USE_TMPNAM 1
+
+/* Define if utime is available in <utime.h>. */
+#define _GLIBCXX_USE_UTIME 1
+
+/* Define if utimensat and UTIME_OMIT are available in <sys/stat.h> and
+ AT_FDCWD in <fcntl.h>. */
+#define _GLIBCXX_USE_UTIMENSAT 1
+
+/* Define if code specialized for wchar_t should be used. */
+#define _GLIBCXX_USE_WCHAR_T 1
+
+/* Define to 1 if a verbose library is built, or 0 otherwise. */
+#define _GLIBCXX_VERBOSE 1
+
+/* Defined if as can handle rdrand. */
+#define _GLIBCXX_X86_RDRAND 1
+
+/* Defined if as can handle rdseed. */
+#define _GLIBCXX_X86_RDSEED 1
+
+/* Define to 1 if mutex_timedlock is available. */
+#define _GTHREAD_USE_MUTEX_TIMEDLOCK 1
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _GLIBCXX_LARGE_FILES */
+
+/* Define if all C++11 floating point overloads are available in <math.h>. */
+
+/* #undef __CORRECT_ISO_CPP11_MATH_H_PROTO_FP */
+
+
+/* Define if all C++11 integral type overloads are available in <math.h>. */
+
+/* #undef __CORRECT_ISO_CPP11_MATH_H_PROTO_INT */
+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+// Output streams -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/ostream
+ * This is a Standard C++ Library header.
+ */
+
+//
+// ISO C++ 14882: 27.6.2 Output streams
+//
+
+
+#define _GLIBCXX_OSTREAM 1
+
+
+
+// Iostreams base classes -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/ios
+ * This is a Standard C++ Library header.
+ */
+
+//
+// ISO C++ 14882: 27.4 Iostreams base classes
+//
+
+
+#define _GLIBCXX_IOS 1
+
+
+
+// <iosfwd> Forward declarations -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/iosfwd
+ * This is a Standard C++ Library header.
+ */
+
+//
+// ISO C++ 14882: 27.2 Forward declarations
+//
+
+
+#define _GLIBCXX_IOSFWD 1
+
+
+
+
+// <string> Forward declarations -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/stringfwd.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{string}
+ */
+
+//
+// ISO C++ 14882: 21 Strings library
+//
+
+
+#define _STRINGFWD_H 1
+
+
+
+
+// <memory> Forward declarations -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ * Copyright (c) 1996-1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file bits/memoryfwd.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{memory}
+ */
+
+
+#define _MEMORYFWD_H 1
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @defgroup allocators Allocators
+ * @ingroup memory
+ *
+ * Classes encapsulating memory operations.
+ *
+ * @{
+ */
+
+ template<typename>
+ class allocator;
+
+
+ template<>
+ class allocator<void>;
+
+
+
+ /// Declare uses_allocator so it can be specialized in \<queue\> etc.
+ template<typename, typename>
+ struct uses_allocator;
+
+
+ /// @} group memory
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @defgroup strings Strings
+ *
+ * @{
+ */
+
+ template<class _CharT>
+ struct char_traits;
+
+ template<> struct char_traits<char>;
+
+
+ template<> struct char_traits<wchar_t>;
+
+
+
+
+
+
+
+ template<> struct char_traits<char16_t>;
+ template<> struct char_traits<char32_t>;
+
+
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT>,
+ typename _Alloc = allocator<_CharT> >
+ class basic_string;
+
+_GLIBCXX_END_NAMESPACE_CXX11
+
+ /// A string of @c char
+ typedef basic_string<char> string;
+
+
+ /// A string of @c wchar_t
+ typedef basic_string<wchar_t> wstring;
+
+
+
+
+
+
+
+
+ /// A string of @c char16_t
+ typedef basic_string<char16_t> u16string;
+
+ /// A string of @c char32_t
+ typedef basic_string<char32_t> u32string;
+
+
+ /** @} */
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+// Position types -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/postypes.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iosfwd}
+ */
+
+//
+// ISO C++ 14882: 27.4.1 - Types
+// ISO C++ 14882: 27.4.3 - Template class fpos
+//
+
+
+#define _GLIBCXX_POSTYPES_H 1
+
+
+
+// -*- C++ -*- forwarding header.
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/cwchar
+ * This is a Standard C++ Library file. You should @c \#include this file
+ * in your programs, rather than any of the @a *.h implementation files.
+ *
+ * This is the C++ version of the Standard C Library header @c wchar.h,
+ * and its contents are (mostly) the same as that header, but are all
+ * contained in the namespace @c std (except for names which are defined
+ * as macros in C).
+ */
+
+//
+// ISO C++ 14882: 21.4
+//
+
+
+
+
+
+
+/* Copyright (C) 1995-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/*
+ * ISO C99 Standard: 7.24
+ * Extended multibyte and wide character utilities <wchar.h>
+ */
+
+
+#define _WCHAR_H 1
+
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+/* Handle feature test macros at the start of a header.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This header is internal to glibc and should not be included outside
+ of glibc headers. Headers including it must define
+ __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION first. This header
+ cannot have multiple include guards because ISO C feature test
+ macros depend on the definition of the macro when an affected
+ header is included, not when the first system header is
+ included. */
+
+
+
+
+
+#undef __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+
+
+
+/* ISO/IEC TR 24731-2:2010 defines the __STDC_WANT_LIB_EXT2__
+ macro. */
+#undef __GLIBC_USE_LIB_EXT2
+
+
+#define __GLIBC_USE_LIB_EXT2 1
+
+
+
+
+/* ISO/IEC TS 18661-1:2014 defines the __STDC_WANT_IEC_60559_BFP_EXT__
+ macro. */
+#undef __GLIBC_USE_IEC_60559_BFP_EXT
+
+#define __GLIBC_USE_IEC_60559_BFP_EXT 1
+
+
+
+
+/* ISO/IEC TS 18661-4:2015 defines the
+ __STDC_WANT_IEC_60559_FUNCS_EXT__ macro. */
+#undef __GLIBC_USE_IEC_60559_FUNCS_EXT
+
+#define __GLIBC_USE_IEC_60559_FUNCS_EXT 1
+
+
+
+
+/* ISO/IEC TS 18661-3:2015 defines the
+ __STDC_WANT_IEC_60559_TYPES_EXT__ macro. */
+#undef __GLIBC_USE_IEC_60559_TYPES_EXT
+
+#define __GLIBC_USE_IEC_60559_TYPES_EXT 1
+
+/* Gather machine dependent type support. */
+/* Macros to control TS 18661-3 glibc features on x86.
+ Copyright (C) 2017-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _BITS_FLOATN_H
+
+
+
+/* Defined to 1 if the current compiler invocation provides a
+ floating-point type with the IEEE 754 binary128 format, and this
+ glibc includes corresponding *f128 interfaces for it. The required
+ libgcc support was added some time after the basic compiler
+ support, for x86_64 and x86. */
+
+
+
+#define __HAVE_FLOAT128 1
+
+
+
+
+/* Defined to 1 if __HAVE_FLOAT128 is 1 and the type is ABI-distinct
+ from the default float, double and long double types in this glibc. */
+
+#define __HAVE_DISTINCT_FLOAT128 1
+
+
+
+
+/* Defined to 1 if the current compiler invocation provides a
+ floating-point type with the right format for _Float64x, and this
+ glibc includes corresponding *f64x interfaces for it. */
+#define __HAVE_FLOAT64X 1
+
+/* Defined to 1 if __HAVE_FLOAT64X is 1 and _Float64x has the format
+ of long double. Otherwise, if __HAVE_FLOAT64X is 1, _Float64x has
+ the format of _Float128, which must be different from that of long
+ double. */
+#define __HAVE_FLOAT64X_LONG_DOUBLE 1
+
+
+
+/* Defined to concatenate the literal suffix to be used with _Float128
+ types, if __HAVE_FLOAT128 is 1. */
+
+
+/* The literal suffix f128 exists only since GCC 7.0. */
+#define __f128(x) x ##q
+
+
+
+
+
+/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
+
+
+/* Add a typedef for older GCC compilers which don't natively support
+ _Complex _Float128. */
+typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
+#define __CFLOAT128 __cfloat128
+
+
+
+
+
+/* The remaining of this file provides support for older compilers. */
+
+
+/* The type _Float128 exists only since GCC 7.0. */
+
+typedef __float128 _Float128;
+
+
+/* __builtin_huge_valf128 doesn't exist before GCC 7.0. */
+
+
+
+
+/* Older GCC has only a subset of built-in functions for _Float128 on
+ x86, and __builtin_infq is not usable in static initializers.
+ Converting a narrower sNaN to _Float128 produces a quiet NaN, so
+ attempts to use _Float128 sNaNs will not work properly with older
+ compilers. */
+
+
+
+
+
+
+
+
+/* In math/math.h, __MATH_TG will expand signbit to __builtin_signbit*,
+ e.g.: __builtin_signbitf128, before GCC 6. However, there has never
+ been a __builtin_signbitf128 in GCC and the type-generic builtin is
+ only available since GCC 6. */
+
+
+
+
+
+
+
+
+/* Macros to control TS 18661-3 glibc features where the same
+ definitions are appropriate for all platforms.
+ Copyright (C) 2017-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _BITS_FLOATN_COMMON_H
+
+
+/* Properties of long double type. ldbl-96 version.
+ Copyright (C) 2016-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* long double is distinct from double, so there is nothing to
+ define here. */
+
+/* This header should be included at the bottom of each bits/floatn.h.
+ It defines the following macros for each _FloatN and _FloatNx type,
+ where the same definitions, or definitions based only on the macros
+ in bits/floatn.h, are appropriate for all glibc configurations. */
+
+/* Defined to 1 if the current compiler invocation provides a
+ floating-point type with the right format for this type, and this
+ glibc includes corresponding *fN or *fNx interfaces for it. */
+#define __HAVE_FLOAT16 0
+#define __HAVE_FLOAT32 1
+#define __HAVE_FLOAT64 1
+#define __HAVE_FLOAT32X 1
+#define __HAVE_FLOAT128X 0
+
+/* Defined to 1 if the corresponding __HAVE_<type> macro is 1 and the
+ type is the first with its format in the sequence of (the default
+ choices for) float, double, long double, _Float16, _Float32,
+ _Float64, _Float128, _Float32x, _Float64x, _Float128x for this
+ glibc; that is, if functions present once per floating-point format
+ rather than once per type are present for this type.
+
+ All configurations supported by glibc have _Float32 the same format
+ as float, _Float64 and _Float32x the same format as double, the
+ _Float64x the same format as either long double or _Float128. No
+ configurations support _Float128x or, as of GCC 7, have compiler
+ support for a type meeting the requirements for _Float128x. */
+#define __HAVE_DISTINCT_FLOAT16 __HAVE_FLOAT16
+#define __HAVE_DISTINCT_FLOAT32 0
+#define __HAVE_DISTINCT_FLOAT64 0
+#define __HAVE_DISTINCT_FLOAT32X 0
+#define __HAVE_DISTINCT_FLOAT64X 0
+#define __HAVE_DISTINCT_FLOAT128X __HAVE_FLOAT128X
+
+/* Defined to 1 if the corresponding _FloatN type is not binary compatible
+ with the corresponding ISO C type in the current compilation unit as
+ opposed to __HAVE_DISTINCT_FLOATN, which indicates the default types built
+ in glibc. */
+#define __HAVE_FLOAT128_UNLIKE_LDBL (__HAVE_DISTINCT_FLOAT128 && __LDBL_MANT_DIG__ != 113)
+
+
+/* Defined to 1 if any _FloatN or _FloatNx types that are not
+ ABI-distinct are however distinct types at the C language level (so
+ for the purposes of __builtin_types_compatible_p and _Generic). */
+
+
+
+#define __HAVE_FLOATN_NOT_TYPEDEF 0
+
+
+
+
+/* Defined to concatenate the literal suffix to be used with _FloatN
+ or _FloatNx types, if __HAVE_<type> is 1. The corresponding
+ literal suffixes exist since GCC 7, for C only. */
+
+
+
+#define __f32(x) x ##f
+
+
+
+
+
+
+
+
+
+
+#define __f64(x) x
+
+
+
+
+
+
+
+
+#define __f32x(x) x
+
+
+
+
+
+
+
+
+#define __f64x(x) x ##l
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* Defined to a complex type if __HAVE_<type> is 1. */
+
+
+
+#define __CFLOAT32 _Complex float
+
+
+
+
+
+
+
+
+
+
+#define __CFLOAT64 _Complex double
+
+
+
+
+
+
+
+
+#define __CFLOAT32X _Complex double
+
+
+
+
+
+
+
+
+#define __CFLOAT64X _Complex long double
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* The remaining of this file provides support for older compilers. */
+
+
+
+
+typedef float _Float32;
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* If double, long double and _Float64 all have the same set of
+ values, TS 18661-3 requires the usual arithmetic conversions on
+ long double and _Float64 to produce _Float64. For this to be the
+ case when building with a compiler without a distinct _Float64
+ type, _Float64 must be a typedef for long double, not for
+ double. */
+
+
+
+typedef double _Float64;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+typedef double _Float32x;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+typedef long double _Float64x;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#define __need_size_t
+#define __need_wchar_t
+#define __need_NULL
+/* Copyright (C) 1989-2021 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+/*
+ * ISO C Standard: 7.17 Common definitions <stddef.h>
+ */
+
+
+
+
+
+
+/* Any one of these symbols __need_* means that GNU libc
+ wants us just to define one data type. So don't define
+ the symbols that indicate this file's entire job has been done. */
+
+
+/* This avoids lossage on SunOS but only if stdtypes.h comes first.
+ There's no way to win with the other order! Sun lossage. */
+
+
+
+
+
+
+
+
+
+
+/* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
+ Just ignore it. */
+
+
+
+
+/* On VxWorks, <type/vxTypesBase.h> may have defined macros like
+ _TYPE_size_t which will typedef size_t. fixincludes patched the
+ vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
+ not defined, and so that defining this macro defines _GCC_SIZE_T.
+ If we find that the macros are still defined at this point, we must
+ invoke them so that the type is defined as expected. */
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* In case nobody has defined these types, but we aren't running under
+ GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and
+ __WCHAR_TYPE__ have reasonable values. This can happen if the
+ parts of GCC is compiled by an older compiler, that actually
+ include gstddef.h, such as collect2. */
+
+/* Signed type of difference of two pointers. */
+
+/* Define this type if we are doing the whole job,
+ or if we want this type in particular. */
+
+/* Unsigned type of `sizeof' something. */
+
+/* Define this type if we are doing the whole job,
+ or if we want this type in particular. */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#define __size_t__
+#define __SIZE_T__
+#define _SIZE_T
+#define _SYS_SIZE_T_H
+#define _T_SIZE_
+#define _T_SIZE
+#define __SIZE_T
+#define _SIZE_T_
+#define _BSD_SIZE_T_
+#define _SIZE_T_DEFINED_
+#define _SIZE_T_DEFINED
+#define _BSD_SIZE_T_DEFINED_
+#define _SIZE_T_DECLARED
+#define ___int_size_t_h
+#define _GCC_SIZE_T
+#define _SIZET_
+
+
+
+
+
+
+#define __size_t
+
+
+
+
+
+typedef __SIZE_TYPE__ size_t;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#undef __need_size_t
+
+
+
+/* Wide character type.
+ Locale-writers should change this as necessary to
+ be big enough to hold unique values not between 0 and 127,
+ and not (wchar_t) -1, for each defined multibyte character. */
+
+/* Define this type if we are doing the whole job,
+ or if we want this type in particular. */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#define __wchar_t__
+#define __WCHAR_T__
+#define _WCHAR_T
+#define _T_WCHAR_
+#define _T_WCHAR
+#define __WCHAR_T
+#define _WCHAR_T_
+#define _BSD_WCHAR_T_
+#define _WCHAR_T_DEFINED_
+#define _WCHAR_T_DEFINED
+#define _WCHAR_T_H
+#define ___int_wchar_t_h
+#define __INT_WCHAR_T_H
+#define _GCC_WCHAR_T
+#define _WCHAR_T_DECLARED
+
+/* On BSD/386 1.1, at least, machine/ansi.h defines _BSD_WCHAR_T_
+ instead of _WCHAR_T_, and _BSD_RUNE_T_ (which, unlike the other
+ symbols in the _FOO_T_ family, stays defined even after its
+ corresponding type is defined). If we define wchar_t, then we
+ must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
+ we undef _WCHAR_T_, then we must also define rune_t, since
+ headers like runetype.h assume that if machine/ansi.h is included,
+ and _BSD_WCHAR_T_ is not defined, then rune_t is available.
+ machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
+ the same type." */
+
+#undef _BSD_WCHAR_T_
+
+/* FreeBSD 5 can't be handled well using "traditional" logic above
+ since it no longer defines _BSD_RUNE_T_ yet still desires to export
+ rune_t in some cases... */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#undef __need_wchar_t
+
+
+
+
+
+
+/* A null pointer constant. */
+
+
+#undef NULL
+
+#define NULL __null
+
+
+
+
+
+
+
+
+#undef __need_NULL
+
+
+
+#define __need___va_list
+/* Copyright (C) 1989-2021 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+/*
+ * ISO C Standard: 7.15 Variable arguments <stdarg.h>
+ */
+
+
+
+
+
+
+
+#undef __need___va_list
+
+/* Define __gnuc_va_list. */
+
+
+#define __GNUC_VA_LIST
+typedef __builtin_va_list __gnuc_va_list;
+
+
+/* Define the standard macros for the user,
+ if this invocation was from the user program. */
+
+
+
+/* wchar_t type related definitions.
+ Copyright (C) 2000-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _BITS_WCHAR_H 1
+
+/* The fallback definitions, for when __WCHAR_MAX__ or __WCHAR_MIN__
+ are not defined, give the right value and type as long as both int
+ and wchar_t are 32-bit types. Adding L'\0' to a constant value
+ ensures that the type is correct; it is necessary to use (L'\0' +
+ 0) rather than just L'\0' so that the type in C++ is the promoted
+ version of wchar_t rather than the distinct wchar_t type itself.
+ Because wchar_t in preprocessor #if expressions is treated as
+ intmax_t or uintmax_t, the expression (L'\0' - 1) would have the
+ wrong value for WCHAR_MAX in such expressions and so cannot be used
+ to define __WCHAR_MAX in the unsigned case. */
+
+
+#define __WCHAR_MAX __WCHAR_MAX__
+
+
+
+
+
+
+
+#define __WCHAR_MIN __WCHAR_MIN__
+
+
+
+
+
+
+
+#define __wint_t_defined 1
+
+/* Some versions of stddef.h provide wint_t, even though neither the
+ C nor C++ standards, nor POSIX, specifies this. We assume that
+ stddef.h will define the macro _WINT_T if and only if it provides
+ wint_t, and conversely, that it will avoid providing wint_t if
+ _WINT_T is already defined. */
+
+#define _WINT_T 1
+
+/* Integral type unchanged by default argument promotions that can
+ hold any value corresponding to members of the extended character
+ set, as well as at least one value that does not correspond to any
+ member of the extended character set. */
+
+
+
+
+typedef __WINT_TYPE__ wint_t;
+
+
+
+#define __mbstate_t_defined 1
+
+
+#define ____mbstate_t_defined 1
+
+/* Integral type unchanged by default argument promotions that can
+ hold any value corresponding to members of the extended character
+ set, as well as at least one value that does not correspond to any
+ member of the extended character set. */
+
+
+
+
+/* Conversion state information. */
+typedef struct
+{
+ int __count;
+ union
+ {
+ __WINT_TYPE__ __wch;
+ char __wchb[4];
+ } __value; /* Value so far. */
+} __mbstate_t;
+
+
+typedef __mbstate_t mbstate_t;
+
+
+#define ____FILE_defined 1
+
+struct _IO_FILE;
+typedef struct _IO_FILE __FILE;
+
+
+
+
+#define __FILE_defined 1
+
+struct _IO_FILE;
+
+/* The opaque type of streams. This is the definition used elsewhere. */
+typedef struct _IO_FILE FILE;
+
+
+
+/* Definition of locale_t.
+ Copyright (C) 2017-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _BITS_TYPES_LOCALE_T_H 1
+
+/* Definition of struct __locale_struct and __locale_t.
+ Copyright (C) 1997-2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#define _BITS_TYPES___LOCALE_T_H 1
+
+/* POSIX.1-2008: the locale_t type, representing a locale context
+ (implementation-namespace version). This type should be treated
+ as opaque by applications; some details are exposed for the sake of
+ efficiency in e.g. ctype functions. */
+
+struct __locale_struct
+{
+ /* Note: LC_ALL is not a valid index into this array. */
+ struct __locale_data *__locales[13]; /* 13 = __LC_LAST. */
+
+ /* To increase the speed of this solution we add some special members. */
+ const unsigned short int *__ctype_b;
+ const int *__ctype_tolower;
+ const int *__ctype_toupper;
+
+ /* Note: LC_ALL is not a valid index into this array. */
+ const char *__names[13];
+};
+
+typedef struct __locale_struct *__locale_t;
+
+
+typedef __locale_t locale_t;
+
+
+
+/* Tell the caller that we provide correct C++ prototypes. */
+
+#define __CORRECT_ISO_CPP_WCHAR_H_PROTO
+
+
+
+/* These constants might also be defined in <inttypes.h>. */
+#define WCHAR_MIN __WCHAR_MIN
+#define WCHAR_MAX __WCHAR_MAX
+
+
+
+#define WEOF (0xffffffffu)
+
+
+/* All versions of XPG prior to the publication of ISO C99 required
+ the bulk of <wctype.h>'s declarations to appear in this header
+ (because <wctype.h> did not exist prior to C99). In POSIX.1-2001
+ those declarations were marked as XSI extensions; in -2008 they
+ were additionally marked as obsolescent. _GNU_SOURCE mode
+ anticipates the removal of these declarations in the next revision
+ of POSIX. */
+
+
+
+
+
+__BEGIN_DECLS
+
+/* This incomplete type is defined in <time.h> but needed here because
+ of `wcsftime'. */
+struct tm;
+
+
+/* Copy SRC to DEST. */
+extern wchar_t *wcscpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src)
+ __THROW __nonnull ((1, 2));
+
+/* Copy no more than N wide-characters of SRC to DEST. */
+extern wchar_t *wcsncpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+
+/* Append SRC onto DEST. */
+extern wchar_t *wcscat (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src)
+ __THROW __nonnull ((1, 2));
+/* Append no more than N wide-characters of SRC onto DEST. */
+extern wchar_t *wcsncat (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src, size_t __n)
+ __THROW __nonnull ((1, 2));
+
+/* Compare S1 and S2. */
+extern int wcscmp (const wchar_t *__s1, const wchar_t *__s2)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+/* Compare N wide-characters of S1 and S2. */
+extern int wcsncmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW __attribute_pure__ __nonnull ((1, 2));
+
+
+/* Compare S1 and S2, ignoring case. */
+extern int wcscasecmp (const wchar_t *__s1, const wchar_t *__s2) __THROW;
+
+/* Compare no more than N chars of S1 and S2, ignoring case. */
+extern int wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
+ size_t __n) __THROW;
+
+/* Similar to the two functions above but take the information from
+ the provided locale and not the global locale. */
+extern int wcscasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
+ locale_t __loc) __THROW;
+
+extern int wcsncasecmp_l (const wchar_t *__s1, const wchar_t *__s2,
+ size_t __n, locale_t __loc) __THROW;
+
+
+/* Compare S1 and S2, both interpreted as appropriate to the
+ LC_COLLATE category of the current locale. */
+extern int wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW;
+/* Transform S2 into array pointed to by S1 such that if wcscmp is
+ applied to two transformed strings the result is the as applying
+ `wcscoll' to the original strings. */
+extern size_t wcsxfrm (wchar_t *__restrict __s1,
+ const wchar_t *__restrict __s2, size_t __n) __THROW;
+
+
+/* Similar to the two functions above but take the information from
+ the provided locale and not the global locale. */
+
+/* Compare S1 and S2, both interpreted as appropriate to the
+ LC_COLLATE category of the given locale. */
+extern int wcscoll_l (const wchar_t *__s1, const wchar_t *__s2,
+ locale_t __loc) __THROW;
+
+/* Transform S2 into array pointed to by S1 such that if wcscmp is
+ applied to two transformed strings the result is the as applying
+ `wcscoll' to the original strings. */
+extern size_t wcsxfrm_l (wchar_t *__s1, const wchar_t *__s2,
+ size_t __n, locale_t __loc) __THROW;
+
+/* Duplicate S, returning an identical malloc'd string. */
+extern wchar_t *wcsdup (const wchar_t *__s) __THROW __attribute_malloc__;
+
+
+/* Find the first occurrence of WC in WCS. */
+
+extern "C++" wchar_t *wcschr (wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcschr") __attribute_pure__;
+extern "C++" const wchar_t *wcschr (const wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcschr") __attribute_pure__;
+
+
+
+
+/* Find the last occurrence of WC in WCS. */
+
+extern "C++" wchar_t *wcsrchr (wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcsrchr") __attribute_pure__;
+extern "C++" const wchar_t *wcsrchr (const wchar_t *__wcs, wchar_t __wc)
+ __THROW __asm ("wcsrchr") __attribute_pure__;
+
+
+
+
+
+
+/* This function is similar to `wcschr'. But it returns a pointer to
+ the closing NUL wide character in case C is not found in S. */
+extern wchar_t *wcschrnul (const wchar_t *__s, wchar_t __wc)
+ __THROW __attribute_pure__;
+
+
+/* Return the length of the initial segmet of WCS which
+ consists entirely of wide characters not in REJECT. */
+extern size_t wcscspn (const wchar_t *__wcs, const wchar_t *__reject)
+ __THROW __attribute_pure__;
+/* Return the length of the initial segmet of WCS which
+ consists entirely of wide characters in ACCEPT. */
+extern size_t wcsspn (const wchar_t *__wcs, const wchar_t *__accept)
+ __THROW __attribute_pure__;
+/* Find the first occurrence in WCS of any character in ACCEPT. */
+
+extern "C++" wchar_t *wcspbrk (wchar_t *__wcs, const wchar_t *__accept)
+ __THROW __asm ("wcspbrk") __attribute_pure__;
+extern "C++" const wchar_t *wcspbrk (const wchar_t *__wcs,
+ const wchar_t *__accept)
+ __THROW __asm ("wcspbrk") __attribute_pure__;
+
+
+
+
+/* Find the first occurrence of NEEDLE in HAYSTACK. */
+
+extern "C++" wchar_t *wcsstr (wchar_t *__haystack, const wchar_t *__needle)
+ __THROW __asm ("wcsstr") __attribute_pure__;
+extern "C++" const wchar_t *wcsstr (const wchar_t *__haystack,
+ const wchar_t *__needle)
+ __THROW __asm ("wcsstr") __attribute_pure__;
+
+
+
+
+
+/* Divide WCS into tokens separated by characters in DELIM. */
+extern wchar_t *wcstok (wchar_t *__restrict __s,
+ const wchar_t *__restrict __delim,
+ wchar_t **__restrict __ptr) __THROW;
+
+/* Return the number of wide characters in S. */
+extern size_t wcslen (const wchar_t *__s) __THROW __attribute_pure__;
+
+
+/* Another name for `wcsstr' from XPG4. */
+
+extern "C++" wchar_t *wcswcs (wchar_t *__haystack, const wchar_t *__needle)
+ __THROW __asm ("wcswcs") __attribute_pure__;
+extern "C++" const wchar_t *wcswcs (const wchar_t *__haystack,
+ const wchar_t *__needle)
+ __THROW __asm ("wcswcs") __attribute_pure__;
+
+
+
+
+
+
+
+/* Return the number of wide characters in S, but at most MAXLEN. */
+extern size_t wcsnlen (const wchar_t *__s, size_t __maxlen)
+ __THROW __attribute_pure__;
+
+
+
+/* Search N wide characters of S for C. */
+
+extern "C++" wchar_t *wmemchr (wchar_t *__s, wchar_t __c, size_t __n)
+ __THROW __asm ("wmemchr") __attribute_pure__;
+extern "C++" const wchar_t *wmemchr (const wchar_t *__s, wchar_t __c,
+ size_t __n)
+ __THROW __asm ("wmemchr") __attribute_pure__;
+
+
+
+
+
+/* Compare N wide characters of S1 and S2. */
+extern int wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW __attribute_pure__;
+
+/* Copy N wide characters of SRC to DEST. */
+extern wchar_t *wmemcpy (wchar_t *__restrict __s1,
+ const wchar_t *__restrict __s2, size_t __n) __THROW;
+
+/* Copy N wide characters of SRC to DEST, guaranteeing
+ correct behavior for overlapping strings. */
+extern wchar_t *wmemmove (wchar_t *__s1, const wchar_t *__s2, size_t __n)
+ __THROW;
+
+/* Set N wide characters of S to C. */
+extern wchar_t *wmemset (wchar_t *__s, wchar_t __c, size_t __n) __THROW;
+
+
+/* Copy N wide characters of SRC to DEST and return pointer to following
+ wide character. */
+extern wchar_t *wmempcpy (wchar_t *__restrict __s1,
+ const wchar_t *__restrict __s2, size_t __n)
+ __THROW;
+
+
+
+/* Determine whether C constitutes a valid (one-byte) multibyte
+ character. */
+extern wint_t btowc (int __c) __THROW;
+
+/* Determine whether C corresponds to a member of the extended
+ character set whose multibyte representation is a single byte. */
+extern int wctob (wint_t __c) __THROW;
+
+/* Determine whether PS points to an object representing the initial
+ state. */
+extern int mbsinit (const mbstate_t *__ps) __THROW __attribute_pure__;
+
+/* Write wide character representation of multibyte character pointed
+ to by S to PWC. */
+extern size_t mbrtowc (wchar_t *__restrict __pwc,
+ const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __p) __THROW;
+
+/* Write multibyte representation of wide character WC to S. */
+extern size_t wcrtomb (char *__restrict __s, wchar_t __wc,
+ mbstate_t *__restrict __ps) __THROW;
+
+/* Return number of bytes in multibyte character pointed to by S. */
+extern size_t __mbrlen (const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __ps) __THROW;
+extern size_t mbrlen (const char *__restrict __s, size_t __n,
+ mbstate_t *__restrict __ps) __THROW;
+
+
+/* Write wide character representation of multibyte character string
+ SRC to DST. */
+extern size_t mbsrtowcs (wchar_t *__restrict __dst,
+ const char **__restrict __src, size_t __len,
+ mbstate_t *__restrict __ps) __THROW;
+
+/* Write multibyte character representation of wide character string
+ SRC to DST. */
+extern size_t wcsrtombs (char *__restrict __dst,
+ const wchar_t **__restrict __src, size_t __len,
+ mbstate_t *__restrict __ps) __THROW;
+
+
+
+/* Write wide character representation of at most NMC bytes of the
+ multibyte character string SRC to DST. */
+extern size_t mbsnrtowcs (wchar_t *__restrict __dst,
+ const char **__restrict __src, size_t __nmc,
+ size_t __len, mbstate_t *__restrict __ps) __THROW;
+
+/* Write multibyte character representation of at most NWC characters
+ from the wide character string SRC to DST. */
+extern size_t wcsnrtombs (char *__restrict __dst,
+ const wchar_t **__restrict __src,
+ size_t __nwc, size_t __len,
+ mbstate_t *__restrict __ps) __THROW;
+
+
+
+/* The following functions are extensions found in X/Open CAE. */
+
+/* Determine number of column positions required for C. */
+extern int wcwidth (wchar_t __c) __THROW;
+
+/* Determine number of column positions required for first N wide
+ characters (or fewer if S ends before this) in S. */
+extern int wcswidth (const wchar_t *__s, size_t __n) __THROW;
+
+
+
+/* Convert initial portion of the wide string NPTR to `double'
+ representation. */
+extern double wcstod (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+/* Likewise for `float' and `long double' sizes of floating-point numbers. */
+extern float wcstof (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+extern long double wcstold (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+/* Likewise for `_FloatN' and `_FloatNx' when support is enabled. */
+
+
+
+
+
+
+
+extern _Float32 wcstof32 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+
+extern _Float64 wcstof64 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+
+extern _Float128 wcstof128 (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+
+extern _Float32x wcstof32x (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+
+extern _Float64x wcstof64x (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr) __THROW;
+
+
+
+
+
+
+
+
+/* Convert initial portion of wide string NPTR to `long int'
+ representation. */
+extern long int wcstol (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base) __THROW;
+
+/* Convert initial portion of wide string NPTR to `unsigned long int'
+ representation. */
+extern unsigned long int wcstoul (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base)
+ __THROW;
+
+
+/* Convert initial portion of wide string NPTR to `long long int'
+ representation. */
+__extension__
+extern long long int wcstoll (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base)
+ __THROW;
+
+/* Convert initial portion of wide string NPTR to `unsigned long long int'
+ representation. */
+__extension__
+extern unsigned long long int wcstoull (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base) __THROW;
+
+
+
+/* Convert initial portion of wide string NPTR to `long long int'
+ representation. */
+__extension__
+extern long long int wcstoq (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base)
+ __THROW;
+
+/* Convert initial portion of wide string NPTR to `unsigned long long int'
+ representation. */
+__extension__
+extern unsigned long long int wcstouq (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base) __THROW;
+
+
+
+/* Parallel versions of the functions above which take the locale to
+ use as an additional parameter. These are GNU extensions inspired
+ by the POSIX.1-2008 extended locale API. */
+extern long int wcstol_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, int __base,
+ locale_t __loc) __THROW;
+
+extern unsigned long int wcstoul_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base, locale_t __loc) __THROW;
+
+__extension__
+extern long long int wcstoll_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base, locale_t __loc) __THROW;
+
+__extension__
+extern unsigned long long int wcstoull_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ int __base, locale_t __loc)
+ __THROW;
+
+extern double wcstod_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, locale_t __loc)
+ __THROW;
+
+extern float wcstof_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr, locale_t __loc)
+ __THROW;
+
+extern long double wcstold_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+
+
+
+
+
+
+
+extern _Float32 wcstof32_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+
+
+extern _Float64 wcstof64_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+
+
+extern _Float128 wcstof128_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+
+
+extern _Float32x wcstof32x_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+
+
+extern _Float64x wcstof64x_l (const wchar_t *__restrict __nptr,
+ wchar_t **__restrict __endptr,
+ locale_t __loc) __THROW;
+
+
+
+
+
+
+
+
+
+
+
+/* Copy SRC to DEST, returning the address of the terminating L'\0' in
+ DEST. */
+extern wchar_t *wcpcpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src) __THROW;
+
+/* Copy no more than N characters of SRC to DEST, returning the address of
+ the last character written into DEST. */
+extern wchar_t *wcpncpy (wchar_t *__restrict __dest,
+ const wchar_t *__restrict __src, size_t __n)
+ __THROW;
+
+
+
+/* Wide character I/O functions. */
+
+
+/* Like OPEN_MEMSTREAM, but the stream is wide oriented and produces
+ a wide character string. */
+extern __FILE *open_wmemstream (wchar_t **__bufloc, size_t *__sizeloc) __THROW;
+
+
+
+
+/* Select orientation for stream. */
+extern int fwide (__FILE *__fp, int __mode) __THROW;
+
+
+/* Write formatted output to STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fwprintf (__FILE *__restrict __stream,
+ const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
+/* Write formatted output to stdout.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int wprintf (const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wprintf__, 1, 2))) */;
+/* Write formatted output of at most N characters to S. */
+extern int swprintf (wchar_t *__restrict __s, size_t __n,
+ const wchar_t *__restrict __format, ...)
+ __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 4))) */;
+
+/* Write formatted output to S from argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vfwprintf (__FILE *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
+/* Write formatted output to stdout from argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vwprintf (const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wprintf__, 1, 0))) */;
+/* Write formatted output of at most N character to S from argument
+ list ARG. */
+extern int vswprintf (wchar_t *__restrict __s, size_t __n,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ __THROW /* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
+
+
+/* Read formatted input from STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fwscanf (__FILE *__restrict __stream,
+ const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+/* Read formatted input from stdin.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int wscanf (const wchar_t *__restrict __format, ...)
+ /* __attribute__ ((__format__ (__wscanf__, 1, 2))) */;
+/* Read formatted input from S. */
+extern int swscanf (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format, ...)
+ __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 3))) */;
+
+
+
+
+
+/* Read formatted input from S into argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vfwscanf (__FILE *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+/* Read formatted input from stdin into argument list ARG.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int vwscanf (const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ /* __attribute__ ((__format__ (__wscanf__, 1, 0))) */;
+/* Read formatted input from S into argument list ARG. */
+extern int vswscanf (const wchar_t *__restrict __s,
+ const wchar_t *__restrict __format,
+ __gnuc_va_list __arg)
+ __THROW /* __attribute__ ((__format__ (__wscanf__, 2, 0))) */;
+
+
+
+
+
+/* Read a character from STREAM.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern wint_t fgetwc (__FILE *__stream);
+extern wint_t getwc (__FILE *__stream);
+
+/* Read a character from stdin.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wint_t getwchar (void);
+
+
+/* Write a character to STREAM.
+
+ These functions are possible cancellation points and therefore not
+ marked with __THROW. */
+extern wint_t fputwc (wchar_t __wc, __FILE *__stream);
+extern wint_t putwc (wchar_t __wc, __FILE *__stream);
+
+/* Write a character to stdout.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wint_t putwchar (wchar_t __wc);
+
+
+/* Get a newline-terminated wide character string of finite length
+ from STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wchar_t *fgetws (wchar_t *__restrict __ws, int __n,
+ __FILE *__restrict __stream);
+
+/* Write a string to STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern int fputws (const wchar_t *__restrict __ws,
+ __FILE *__restrict __stream);
+
+
+/* Push a character back onto the input buffer of STREAM.
+
+ This function is a possible cancellation point and therefore not
+ marked with __THROW. */
+extern wint_t ungetwc (wint_t __wc, __FILE *__stream);
+
+
+
+/* These are defined to be equivalent to the `char' functions defined
+ in POSIX.1:1996.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern wint_t getwc_unlocked (__FILE *__stream);
+extern wint_t getwchar_unlocked (void);
+
+/* This is the wide character version of a GNU extension.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern wint_t fgetwc_unlocked (__FILE *__stream);
+
+/* Faster version when locking is not necessary.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern wint_t fputwc_unlocked (wchar_t __wc, __FILE *__stream);
+
+/* These are defined to be equivalent to the `char' functions defined
+ in POSIX.1:1996.
+
+ These functions are not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation they are cancellation points and
+ therefore not marked with __THROW. */
+extern wint_t putwc_unlocked (wchar_t __wc, __FILE *__stream);
+extern wint_t putwchar_unlocked (wchar_t __wc);
+
+
+/* This function does the same as `fgetws' but does not lock the stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern wchar_t *fgetws_unlocked (wchar_t *__restrict __ws, int __n,
+ __FILE *__restrict __stream);
+
+/* This function does the same as `fputws' but does not lock the stream.
+
+ This function is not part of POSIX and therefore no official
+ cancellation point. But due to similarity with an POSIX interface
+ or due to the implementation it is a cancellation point and
+ therefore not marked with __THROW. */
+extern int fputws_unlocked (const wchar_t *__restrict __ws,
+ __FILE *__restrict __stream);
+
+
+
+/* Format TP into S according to FORMAT.
+ Write no more than MAXSIZE wide characters and return the number
+ of wide characters written, or 0 if it would exceed MAXSIZE. */
+extern size_t wcsftime (wchar_t *__restrict __s, size_t __maxsize,
+ const wchar_t *__restrict __format,
+ const struct tm *__restrict __tp) __THROW;
+
+
+/* Similar to `wcsftime' but takes the information from
+ the provided locale and not the global locale. */
+extern size_t wcsftime_l (wchar_t *__restrict __s, size_t __maxsize,
+ const wchar_t *__restrict __format,
+ const struct tm *__restrict __tp,
+ locale_t __loc) __THROW;
+
+
+/* Define some macros helping to catch buffer overflows. */
+
+
+
+
+
+
+
+
+__END_DECLS
+
+
+
+
+#define _GLIBCXX_CWCHAR 1
+
+// Need to do a bit of trickery here with mbstate_t as char_traits
+// assumes it is in wchar.h, regardless of wchar_t specializations.
+
+namespace std
+{
+ using ::mbstate_t;
+} // namespace std
+
+// Get rid of those macros defined in <wchar.h> in lieu of real functions.
+#undef btowc
+#undef fgetwc
+#undef fgetws
+#undef fputwc
+#undef fputws
+#undef fwide
+#undef fwprintf
+#undef fwscanf
+#undef getwc
+#undef getwchar
+#undef mbrlen
+#undef mbrtowc
+#undef mbsinit
+#undef mbsrtowcs
+#undef putwc
+#undef putwchar
+#undef swprintf
+#undef swscanf
+#undef ungetwc
+#undef vfwprintf
+
+#undef vfwscanf
+
+#undef vswprintf
+
+#undef vswscanf
+
+#undef vwprintf
+
+#undef vwscanf
+
+#undef wcrtomb
+#undef wcscat
+#undef wcschr
+#undef wcscmp
+#undef wcscoll
+#undef wcscpy
+#undef wcscspn
+#undef wcsftime
+#undef wcslen
+#undef wcsncat
+#undef wcsncmp
+#undef wcsncpy
+#undef wcspbrk
+#undef wcsrchr
+#undef wcsrtombs
+#undef wcsspn
+#undef wcsstr
+#undef wcstod
+
+#undef wcstof
+
+#undef wcstok
+#undef wcstol
+#undef wcstoul
+#undef wcsxfrm
+#undef wctob
+#undef wmemchr
+#undef wmemcmp
+#undef wmemcpy
+#undef wmemmove
+#undef wmemset
+#undef wprintf
+#undef wscanf
+
+
+
+extern "C++"
+{
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ using ::wint_t;
+
+ using ::btowc;
+ using ::fgetwc;
+ using ::fgetws;
+ using ::fputwc;
+ using ::fputws;
+ using ::fwide;
+ using ::fwprintf;
+ using ::fwscanf;
+ using ::getwc;
+ using ::getwchar;
+ using ::mbrlen;
+ using ::mbrtowc;
+ using ::mbsinit;
+ using ::mbsrtowcs;
+ using ::putwc;
+ using ::putwchar;
+
+ using ::swprintf;
+
+ using ::swscanf;
+ using ::ungetwc;
+ using ::vfwprintf;
+
+ using ::vfwscanf;
+
+
+ using ::vswprintf;
+
+
+ using ::vswscanf;
+
+ using ::vwprintf;
+
+ using ::vwscanf;
+
+ using ::wcrtomb;
+ using ::wcscat;
+ using ::wcscmp;
+ using ::wcscoll;
+ using ::wcscpy;
+ using ::wcscspn;
+ using ::wcsftime;
+ using ::wcslen;
+ using ::wcsncat;
+ using ::wcsncmp;
+ using ::wcsncpy;
+ using ::wcsrtombs;
+ using ::wcsspn;
+ using ::wcstod;
+
+ using ::wcstof;
+
+ using ::wcstok;
+ using ::wcstol;
+ using ::wcstoul;
+ using ::wcsxfrm;
+ using ::wctob;
+ using ::wmemcmp;
+ using ::wmemcpy;
+ using ::wmemmove;
+ using ::wmemset;
+ using ::wprintf;
+ using ::wscanf;
+ using ::wcschr;
+ using ::wcspbrk;
+ using ::wcsrchr;
+ using ::wcsstr;
+ using ::wmemchr;
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+} // extern "C++"
+
+
+
+#undef wcstold
+#undef wcstoll
+#undef wcstoull
+
+namespace __gnu_cxx
+{
+
+
+
+
+
+ using ::wcstold;
+
+
+
+
+
+
+
+
+ using ::wcstoll;
+ using ::wcstoull;
+
+} // namespace __gnu_cxx
+
+namespace std
+{
+ using ::__gnu_cxx::wcstold;
+ using ::__gnu_cxx::wcstoll;
+ using ::__gnu_cxx::wcstoull;
+} // namespace
+
+
+
+
+
+
+
+
+
+namespace std
+{
+
+ using std::wcstof;
+
+
+ using std::vfwscanf;
+
+
+ using std::vswscanf;
+
+
+ using std::vwscanf;
+
+
+
+ using std::wcstold;
+ using std::wcstoll;
+ using std::wcstoull;
+
+} // namespace
+
+
+
+
+
+
+// XXX If <stdint.h> is really needed, make sure to define the macros
+// before including it, in order not to break <tr1/cstdint> (and <cstdint>
+// in C++11). Reconsider all this as soon as possible...
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // The types streamoff, streampos and wstreampos and the class
+ // template fpos<> are described in clauses 21.1.2, 21.1.3, 27.1.2,
+ // 27.2, 27.4.1, 27.4.3 and D.6. Despite all this verbiage, the
+ // behaviour of these types is mostly implementation defined or
+ // unspecified. The behaviour in this implementation is as noted
+ // below.
+
+ /**
+ * @brief Type used by fpos, char_traits<char>, and char_traits<wchar_t>.
+ *
+ * In clauses 21.1.3.1 and 27.4.1 streamoff is described as an
+ * implementation defined type.
+ * Note: In versions of GCC up to and including GCC 3.3, streamoff
+ * was typedef long.
+ */
+
+ typedef long streamoff;
+
+
+
+
+
+
+
+
+ /// Integral type for I/O operation counts and buffer sizes.
+ typedef ptrdiff_t streamsize; // Signed integral type
+
+ /**
+ * @brief Class representing stream positions.
+ *
+ * The standard places no requirements upon the template parameter StateT.
+ * In this implementation StateT must be DefaultConstructible,
+ * CopyConstructible and Assignable. The standard only requires that fpos
+ * should contain a member of type StateT. In this implementation it also
+ * contains an offset stored as a signed integer.
+ *
+ * @param StateT Type passed to and returned from state().
+ */
+ template<typename _StateT>
+ class fpos
+ {
+ private:
+ streamoff _M_off;
+ _StateT _M_state;
+
+ public:
+ // The standard doesn't require that fpos objects can be default
+ // constructed. This implementation provides a default
+ // constructor that initializes the offset to 0 and default
+ // constructs the state.
+ fpos()
+ : _M_off(0), _M_state() { }
+
+ // The standard requires that fpos objects can be constructed
+ // from streamoff objects using the constructor syntax, and
+ // fails to give any meaningful semantics. In this
+ // implementation implicit conversion is also allowed, and this
+ // constructor stores the streamoff as the offset and default
+ // constructs the state.
+ /// Construct position from offset.
+ fpos(streamoff __off)
+ : _M_off(__off), _M_state() { }
+
+
+ fpos(const fpos&) = default;
+ fpos& operator=(const fpos&) = default;
+ ~fpos() = default;
+
+
+ /// Convert to streamoff.
+ operator streamoff() const { return _M_off; }
+
+ /// Remember the value of @a st.
+ void
+ state(_StateT __st)
+ { _M_state = __st; }
+
+ /// Return the last set value of @a st.
+ _StateT
+ state() const
+ { return _M_state; }
+
+ // The standard requires that this operator must be defined, but
+ // gives no semantics. In this implementation it just adds its
+ // argument to the stored offset and returns *this.
+ /// Add offset to this position.
+ fpos&
+ operator+=(streamoff __off)
+ {
+ _M_off += __off;
+ return *this;
+ }
+
+ // The standard requires that this operator must be defined, but
+ // gives no semantics. In this implementation it just subtracts
+ // its argument from the stored offset and returns *this.
+ /// Subtract offset from this position.
+ fpos&
+ operator-=(streamoff __off)
+ {
+ _M_off -= __off;
+ return *this;
+ }
+
+ // The standard requires that this operator must be defined, but
+ // defines its semantics only in terms of operator-. In this
+ // implementation it constructs a copy of *this, adds the
+ // argument to that copy using operator+= and then returns the
+ // copy.
+ /// Add position and offset.
+ fpos
+ operator+(streamoff __off) const
+ {
+ fpos __pos(*this);
+ __pos += __off;
+ return __pos;
+ }
+
+ // The standard requires that this operator must be defined, but
+ // defines its semantics only in terms of operator+. In this
+ // implementation it constructs a copy of *this, subtracts the
+ // argument from that copy using operator-= and then returns the
+ // copy.
+ /// Subtract offset from position.
+ fpos
+ operator-(streamoff __off) const
+ {
+ fpos __pos(*this);
+ __pos -= __off;
+ return __pos;
+ }
+
+ // The standard requires that this operator must be defined, but
+ // defines its semantics only in terms of operator+. In this
+ // implementation it returns the difference between the offset
+ // stored in *this and in the argument.
+ /// Subtract position to return offset.
+ streamoff
+ operator-(const fpos& __other) const
+ { return _M_off - __other._M_off; }
+ };
+
+ // The standard only requires that operator== must be an
+ // equivalence relation. In this implementation two fpos<StateT>
+ // objects belong to the same equivalence class if the contained
+ // offsets compare equal.
+ /// Test if equivalent to another position.
+ template<typename _StateT>
+ inline bool
+ operator==(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
+ { return streamoff(__lhs) == streamoff(__rhs); }
+
+ template<typename _StateT>
+ inline bool
+ operator!=(const fpos<_StateT>& __lhs, const fpos<_StateT>& __rhs)
+ { return streamoff(__lhs) != streamoff(__rhs); }
+
+ // Clauses 21.1.3.1 and 21.1.3.2 describe streampos and wstreampos
+ // as implementation defined types, but clause 27.2 requires that
+ // they must both be typedefs for fpos<mbstate_t>
+ /// File position for char streams.
+ typedef fpos<mbstate_t> streampos;
+ /// File position for wchar_t streams.
+ typedef fpos<mbstate_t> wstreampos;
+
+
+
+
+
+
+
+ /// File position for char16_t streams.
+ typedef fpos<mbstate_t> u16streampos;
+ /// File position for char32_t streams.
+ typedef fpos<mbstate_t> u32streampos;
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @defgroup io I/O
+ *
+ * Nearly all of the I/O classes are parameterized on the type of
+ * characters they read and write. (The major exception is ios_base at
+ * the top of the hierarchy.) This is a change from pre-Standard
+ * streams, which were not templates.
+ *
+ * For ease of use and compatibility, all of the basic_* I/O-related
+ * classes are given typedef names for both of the builtin character
+ * widths (wide and narrow). The typedefs are the same as the
+ * pre-Standard names, for example:
+ *
+ * @code
+ * typedef basic_ifstream<char> ifstream;
+ * @endcode
+ *
+ * Because properly forward-declaring these classes can be difficult, you
+ * should not do it yourself. Instead, include the <iosfwd>
+ * header, which contains only declarations of all the I/O classes as
+ * well as the typedefs. Trying to forward-declare the typedefs
+ * themselves (e.g., <code>class ostream;</code>) is not valid ISO C++.
+ *
+ * For more specific declarations, see
+ * https://gcc.gnu.org/onlinedocs/libstdc++/manual/io.html#std.io.objects
+ *
+ * @{
+ */
+ class ios_base;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_ios;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_streambuf;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_istream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_ostream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_iostream;
+
+
+_GLIBCXX_BEGIN_NAMESPACE_CXX11
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT>,
+ typename _Alloc = allocator<_CharT> >
+ class basic_stringbuf;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT>,
+ typename _Alloc = allocator<_CharT> >
+ class basic_istringstream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT>,
+ typename _Alloc = allocator<_CharT> >
+ class basic_ostringstream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT>,
+ typename _Alloc = allocator<_CharT> >
+ class basic_stringstream;
+
+_GLIBCXX_END_NAMESPACE_CXX11
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_filebuf;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_ifstream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_ofstream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class basic_fstream;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class istreambuf_iterator;
+
+ template<typename _CharT, typename _Traits = char_traits<_CharT> >
+ class ostreambuf_iterator;
+
+
+ /// Base class for @c char streams.
+ typedef basic_ios<char> ios;
+
+ /// Base class for @c char buffers.
+ typedef basic_streambuf<char> streambuf;
+
+ /// Base class for @c char input streams.
+ typedef basic_istream<char> istream;
+
+ /// Base class for @c char output streams.
+ typedef basic_ostream<char> ostream;
+
+ /// Base class for @c char mixed input and output streams.
+ typedef basic_iostream<char> iostream;
+
+ /// Class for @c char memory buffers.
+ typedef basic_stringbuf<char> stringbuf;
+
+ /// Class for @c char input memory streams.
+ typedef basic_istringstream<char> istringstream;
+
+ /// Class for @c char output memory streams.
+ typedef basic_ostringstream<char> ostringstream;
+
+ /// Class for @c char mixed input and output memory streams.
+ typedef basic_stringstream<char> stringstream;
+
+ /// Class for @c char file buffers.
+ typedef basic_filebuf<char> filebuf;
+
+ /// Class for @c char input file streams.
+ typedef basic_ifstream<char> ifstream;
+
+ /// Class for @c char output file streams.
+ typedef basic_ofstream<char> ofstream;
+
+ /// Class for @c char mixed input and output file streams.
+ typedef basic_fstream<char> fstream;
+
+
+ /// Base class for @c wchar_t streams.
+ typedef basic_ios<wchar_t> wios;
+
+ /// Base class for @c wchar_t buffers.
+ typedef basic_streambuf<wchar_t> wstreambuf;
+
+ /// Base class for @c wchar_t input streams.
+ typedef basic_istream<wchar_t> wistream;
+
+ /// Base class for @c wchar_t output streams.
+ typedef basic_ostream<wchar_t> wostream;
+
+ /// Base class for @c wchar_t mixed input and output streams.
+ typedef basic_iostream<wchar_t> wiostream;
+
+ /// Class for @c wchar_t memory buffers.
+ typedef basic_stringbuf<wchar_t> wstringbuf;
+
+ /// Class for @c wchar_t input memory streams.
+ typedef basic_istringstream<wchar_t> wistringstream;
+
+ /// Class for @c wchar_t output memory streams.
+ typedef basic_ostringstream<wchar_t> wostringstream;
+
+ /// Class for @c wchar_t mixed input and output memory streams.
+ typedef basic_stringstream<wchar_t> wstringstream;
+
+ /// Class for @c wchar_t file buffers.
+ typedef basic_filebuf<wchar_t> wfilebuf;
+
+ /// Class for @c wchar_t input file streams.
+ typedef basic_ifstream<wchar_t> wifstream;
+
+ /// Class for @c wchar_t output file streams.
+ typedef basic_ofstream<wchar_t> wofstream;
+
+ /// Class for @c wchar_t mixed input and output file streams.
+ typedef basic_fstream<wchar_t> wfstream;
+
+ /** @} */
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// Exception Handling support header for -*- C++ -*-
+
+// Copyright (C) 1995-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file exception
+ * This is a Standard C++ Library header.
+ */
+
+
+#define __EXCEPTION__
+
+
+
+#pragma GCC visibility push(default)
+
+
+// Exception Handling support header for -*- C++ -*-
+
+// Copyright (C) 2016-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/exception.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly.
+ */
+
+
+#define __EXCEPTION_H 1
+
+
+
+#pragma GCC visibility push(default)
+
+
+
+extern "C++" {
+
+namespace std
+{
+ /**
+ * @defgroup exceptions Exceptions
+ * @ingroup diagnostics
+ *
+ * Classes and functions for reporting errors via exception classes.
+ * @{
+ */
+
+ /**
+ * @brief Base class for all library exceptions.
+ *
+ * This is the base class for all exceptions thrown by the standard
+ * library, and by certain language expressions. You are free to derive
+ * your own %exception classes, or use a different hierarchy, or to
+ * throw non-class data (e.g., fundamental types).
+ */
+ class exception
+ {
+ public:
+ exception() _GLIBCXX_NOTHROW { }
+ virtual ~exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW;
+
+ exception(const exception&) = default;
+ exception& operator=(const exception&) = default;
+ exception(exception&&) = default;
+ exception& operator=(exception&&) = default;
+
+
+ /** Returns a C-style character string describing the general cause
+ * of the current error. */
+ virtual const char*
+ what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW;
+ };
+
+} // namespace std
+
+}
+
+#pragma GCC visibility pop
+
+
+extern "C++" {
+
+namespace std
+{
+ /** @addtogroup exceptions
+ * @{
+ */
+
+ /** If an %exception is thrown which is not listed in a function's
+ * %exception specification, one of these may be thrown. */
+ class bad_exception : public exception
+ {
+ public:
+ bad_exception() _GLIBCXX_USE_NOEXCEPT { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
+
+ // See comment in eh_exception.cc.
+ virtual const char*
+ what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
+ };
+
+ /// If you write a replacement %terminate handler, it must be of this type.
+ typedef void (*terminate_handler) ();
+
+ /// If you write a replacement %unexpected handler, it must be of this type.
+ typedef void (*unexpected_handler) ();
+
+ /// Takes a new handler function as an argument, returns the old function.
+ terminate_handler set_terminate(terminate_handler) _GLIBCXX_USE_NOEXCEPT;
+
+
+ /// Return the current terminate handler.
+ terminate_handler get_terminate() noexcept;
+
+
+ /** The runtime will call this function if %exception handling must be
+ * abandoned for any reason. It can also be called by the user. */
+ void terminate() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__noreturn__));
+
+ /// Takes a new handler function as an argument, returns the old function.
+ unexpected_handler set_unexpected(unexpected_handler) _GLIBCXX_USE_NOEXCEPT;
+
+
+ /// Return the current unexpected handler.
+ unexpected_handler get_unexpected() noexcept;
+
+
+ /** The runtime will call this function if an %exception is thrown which
+ * violates the function's %exception specification. */
+ void unexpected() __attribute__ ((__noreturn__));
+
+ /** [18.6.4]/1: 'Returns true after completing evaluation of a
+ * throw-expression until either completing initialization of the
+ * exception-declaration in the matching handler or entering @c unexpected()
+ * due to the throw; or after entering @c terminate() for any reason
+ * other than an explicit call to @c terminate(). [Note: This includes
+ * stack unwinding [15.2]. end note]'
+ *
+ * 2: 'When @c uncaught_exception() is true, throwing an
+ * %exception can result in a call of @c terminate()
+ * (15.5.1).'
+ */
+ _GLIBCXX17_DEPRECATED
+ bool uncaught_exception() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
+
+
+#define __cpp_lib_uncaught_exceptions 201411L
+ /// The number of uncaught exceptions.
+ int uncaught_exceptions() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
+
+
+ // @} group exceptions
+} // namespace std
+
+namespace __gnu_cxx
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @brief A replacement for the standard terminate_handler which
+ * prints more information about the terminating exception (if any)
+ * on stderr.
+ *
+ * @ingroup exceptions
+ *
+ * Call
+ * @code
+ * std::set_terminate(__gnu_cxx::__verbose_terminate_handler)
+ * @endcode
+ * to use. For more info, see
+ * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt02ch06s02.html
+ *
+ * In 3.4 and later, this is on by default.
+ */
+ void __verbose_terminate_handler();
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+} // extern "C++"
+
+#pragma GCC visibility pop
+
+
+// Exception Handling support header (exception_ptr class) for -*- C++ -*-
+
+// Copyright (C) 2008-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/exception_ptr.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{exception}
+ */
+
+
+#define _EXCEPTION_PTR_H
+
+#pragma GCC visibility push(default)
+
+
+// -fno-exceptions Support -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/exception_defines.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{exception}
+ */
+
+
+#define _EXCEPTION_DEFINES_H 1
+
+
+
+
+
+
+
+// Else proceed normally.
+#define __try try
+#define __catch(X) catch(X)
+#define __throw_exception_again throw
+
+
+// ABI Support -*- C++ -*-
+
+// Copyright (C) 2016-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/cxxabi_init_exception.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly.
+ */
+
+
+#define _CXXABI_INIT_EXCEPTION_H 1
+
+
+
+#pragma GCC visibility push(default)
+
+/* Copyright (C) 1989-2021 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+/*
+ * ISO C Standard: 7.17 Common definitions <stddef.h>
+ */
+
+
+
+
+
+
+/* Any one of these symbols __need_* means that GNU libc
+ wants us just to define one data type. So don't define
+ the symbols that indicate this file's entire job has been done. */
+
+
+
+#define _STDDEF_H
+#define _STDDEF_H_
+/* snaroff@next.com says the NeXT needs this. */
+#define _ANSI_STDDEF_H
+
+
+
+/* This avoids lossage on SunOS but only if stdtypes.h comes first.
+ There's no way to win with the other order! Sun lossage. */
+
+
+
+
+
+
+
+
+
+
+/* Sequent's header files use _PTRDIFF_T_ in some conflicting way.
+ Just ignore it. */
+
+
+
+
+/* On VxWorks, <type/vxTypesBase.h> may have defined macros like
+ _TYPE_size_t which will typedef size_t. fixincludes patched the
+ vxTypesBase.h so that this macro is only defined if _GCC_SIZE_T is
+ not defined, and so that defining this macro defines _GCC_SIZE_T.
+ If we find that the macros are still defined at this point, we must
+ invoke them so that the type is defined as expected. */
+
+
+
+
+
+
+
+
+
+
+
+
+
+/* In case nobody has defined these types, but we aren't running under
+ GCC 2.00, make sure that __PTRDIFF_TYPE__, __SIZE_TYPE__, and
+ __WCHAR_TYPE__ have reasonable values. This can happen if the
+ parts of GCC is compiled by an older compiler, that actually
+ include gstddef.h, such as collect2. */
+
+/* Signed type of difference of two pointers. */
+
+/* Define this type if we are doing the whole job,
+ or if we want this type in particular. */
+
+
+
+
+
+
+
+
+
+
+#define _PTRDIFF_T
+#define _T_PTRDIFF_
+#define _T_PTRDIFF
+#define __PTRDIFF_T
+#define _PTRDIFF_T_
+#define _BSD_PTRDIFF_T_
+#define ___int_ptrdiff_t_h
+#define _GCC_PTRDIFF_T
+#define _PTRDIFF_T_DECLARED
+
+
+
+typedef __PTRDIFF_TYPE__ ptrdiff_t;
+
+
+
+
+
+
+
+
+
+
+/* If this symbol has done its job, get rid of it. */
+#undef __need_ptrdiff_t
+
+
+
+/* Unsigned type of `sizeof' something. */
+
+/* Define this type if we are doing the whole job,
+ or if we want this type in particular. */
+
+#undef __need_size_t
+
+
+
+/* Wide character type.
+ Locale-writers should change this as necessary to
+ be big enough to hold unique values not between 0 and 127,
+ and not (wchar_t) -1, for each defined multibyte character. */
+
+/* Define this type if we are doing the whole job,
+ or if we want this type in particular. */
+
+#undef __need_wchar_t
+
+
+
+
+
+
+/* A null pointer constant. */
+
+
+#undef NULL
+
+#define NULL __null
+
+
+
+
+
+
+
+
+#undef __need_NULL
+
+
+
+/* Offset of member MEMBER in a struct of type TYPE. */
+#define offsetof(TYPE,MEMBER) __builtin_offsetof (TYPE, MEMBER)
+
+
+
+
+#define _GCC_MAX_ALIGN_T
+/* Type whose alignment is supported in every context and is at least
+ as great as that of any standard type not using alignment
+ specifiers. */
+typedef struct {
+ long long __max_align_ll __attribute__((__aligned__(__alignof__(long long))));
+ long double __max_align_ld __attribute__((__aligned__(__alignof__(long double))));
+ /* _Float128 is defined as a basic type, so max_align_t must be
+ sufficiently aligned for it. This code must work in C++, so we
+ use __float128 here; that is only available on some
+ architectures, but only on i386 is extra alignment needed for
+ __float128. */
+
+
+
+} max_align_t;
+
+
+
+
+
+#define _GXX_NULLPTR_T
+ typedef decltype(nullptr) nullptr_t;
+
+
+
+
+
+
+
+
+#define _GLIBCXX_CDTOR_CALLABI
+#define _GLIBCXX_HAVE_CDTOR_CALLABI 0
+
+
+
+
+
+
+namespace std
+{
+ class type_info;
+}
+
+namespace __cxxabiv1
+{
+ struct __cxa_refcounted_exception;
+
+ extern "C"
+ {
+ // Allocate memory for the primary exception plus the thrown object.
+ void*
+ __cxa_allocate_exception(size_t) _GLIBCXX_NOTHROW;
+
+ void
+ __cxa_free_exception(void*) _GLIBCXX_NOTHROW;
+
+ // Initialize exception (this is a GNU extension)
+ __cxa_refcounted_exception*
+ __cxa_init_primary_exception(void *object, std::type_info *tinfo,
+ void (_GLIBCXX_CDTOR_CALLABI *dest) (void *)) _GLIBCXX_NOTHROW;
+
+ }
+} // namespace __cxxabiv1
+
+
+
+#pragma GCC visibility pop
+
+// RTTI support for -*- C++ -*-
+// Copyright (C) 1994-2021 Free Software Foundation, Inc.
+//
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file typeinfo
+ * This is a Standard C++ Library header.
+ */
+
+
+#define _TYPEINFO
+
+
+
+
+
+// Declarations for hash functions. -*- C++ -*-
+
+// Copyright (C) 2010-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/hash_bytes.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{functional}
+ */
+
+
+#define _HASH_BYTES_H 1
+
+
+
+
+
+namespace std
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // Hash function implementation for the nontrivial specialization.
+ // All of them are based on a primitive that hashes a pointer to a
+ // byte array. The actual hash algorithm is not guaranteed to stay
+ // the same from release to release -- it may be updated or tuned to
+ // improve hash quality or speed.
+ size_t
+ _Hash_bytes(const void* __ptr, size_t __len, size_t __seed);
+
+ // A similar hash primitive, using the FNV hash algorithm. This
+ // algorithm is guaranteed to stay the same from release to release.
+ // (although it might not produce the same values on different
+ // machines.)
+ size_t
+ _Fnv_hash_bytes(const void* __ptr, size_t __len, size_t __seed);
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+
+
+#pragma GCC visibility push(default)
+
+extern "C++" {
+
+namespace __cxxabiv1
+{
+ class __class_type_info;
+} // namespace __cxxabiv1
+
+// Determine whether typeinfo names for the same type are merged (in which
+// case comparison can just compare pointers) or not (in which case strings
+// must be compared), and whether comparison is to be implemented inline or
+// not. We used to do inline pointer comparison by default if weak symbols
+// are available, but even with weak symbols sometimes names are not merged
+// when objects are loaded with RTLD_LOCAL, so now we always use strcmp by
+// default. For ABI compatibility, we do the strcmp inline if weak symbols
+// are available, and out-of-line if not. Out-of-line pointer comparison
+// is used where the object files are to be portable to multiple systems,
+// some of which may not be able to use pointer comparison, but the
+// particular system for which libstdc++ is being built can use pointer
+// comparison; in particular for most ARM EABI systems, where the ABI
+// specifies out-of-line comparison. The compiler's target configuration
+// can override the defaults by defining __GXX_TYPEINFO_EQUALITY_INLINE to
+// 1 or 0 to indicate whether or not comparison is inline, and
+// __GXX_MERGED_TYPEINFO_NAMES to 1 or 0 to indicate whether or not pointer
+// comparison can be used.
+
+
+// By default, typeinfo names are not merged.
+#define __GXX_MERGED_TYPEINFO_NAMES 0
+
+
+// By default follow the old inline rules to avoid ABI changes.
+
+
+
+
+ #define __GXX_TYPEINFO_EQUALITY_INLINE 1
+
+
+
+namespace std
+{
+ /**
+ * @brief Part of RTTI.
+ *
+ * The @c type_info class describes type information generated by
+ * an implementation.
+ */
+ class type_info
+ {
+ public:
+ /** Destructor first. Being the first non-inline virtual function, this
+ * controls in which translation unit the vtable is emitted. The
+ * compiler makes use of that information to know where to emit
+ * the runtime-mandated type_info structures in the new-abi. */
+ virtual ~type_info();
+
+ /** Returns an @e implementation-defined byte string; this is not
+ * portable between compilers! */
+ const char* name() const _GLIBCXX_NOEXCEPT
+ { return __name[0] == '*' ? __name + 1 : __name; }
+
+
+
+
+
+
+
+
+
+ /** Returns true if @c *this precedes @c __arg in the implementation's
+ * collation order. */
+ // Even with the new abi, on systems that support dlopen
+ // we can run into cases where type_info names aren't merged,
+ // so we still need to do string comparison.
+ bool before(const type_info& __arg) const _GLIBCXX_NOEXCEPT
+ { return (__name[0] == '*' && __arg.__name[0] == '*')
+ ? __name < __arg.__name
+ : __builtin_strcmp (__name, __arg.__name) < 0; }
+
+ bool operator==(const type_info& __arg) const _GLIBCXX_NOEXCEPT
+ {
+ return ((__name == __arg.__name)
+ || (__name[0] != '*' &&
+ __builtin_strcmp (__name, __arg.__name) == 0));
+ }
+
+
+
+ bool operator!=(const type_info& __arg) const _GLIBCXX_NOEXCEPT
+ { return !operator==(__arg); }
+
+
+
+ size_t hash_code() const noexcept
+ {
+
+ return _Hash_bytes(name(), __builtin_strlen(name()),
+ static_cast<size_t>(0xc70f6907UL));
+
+
+
+ }
+
+
+ // Return true if this is a pointer type of some kind
+ virtual bool __is_pointer_p() const;
+
+ // Return true if this is a function type
+ virtual bool __is_function_p() const;
+
+ // Try and catch a thrown type. Store an adjusted pointer to the
+ // caught type in THR_OBJ. If THR_TYPE is not a pointer type, then
+ // THR_OBJ points to the thrown object. If THR_TYPE is a pointer
+ // type, then THR_OBJ is the pointer itself. OUTER indicates the
+ // number of outer pointers, and whether they were const
+ // qualified.
+ virtual bool __do_catch(const type_info *__thr_type, void **__thr_obj,
+ unsigned __outer) const;
+
+ // Internally used during catch matching
+ virtual bool __do_upcast(const __cxxabiv1::__class_type_info *__target,
+ void **__obj_ptr) const;
+
+ protected:
+ const char *__name;
+
+ explicit type_info(const char *__n): __name(__n) { }
+
+ private:
+ /// Assigning type_info is not supported.
+ type_info& operator=(const type_info&);
+ type_info(const type_info&);
+ };
+
+ /**
+ * @brief Thrown during incorrect typecasting.
+ * @ingroup exceptions
+ *
+ * If you attempt an invalid @c dynamic_cast expression, an instance of
+ * this class (or something derived from this class) is thrown. */
+ class bad_cast : public exception
+ {
+ public:
+ bad_cast() _GLIBCXX_USE_NOEXCEPT { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_cast() _GLIBCXX_USE_NOEXCEPT;
+
+ // See comment in eh_exception.cc.
+ virtual const char* what() const _GLIBCXX_USE_NOEXCEPT;
+ };
+
+ /**
+ * @brief Thrown when a NULL pointer in a @c typeid expression is used.
+ * @ingroup exceptions
+ */
+ class bad_typeid : public exception
+ {
+ public:
+ bad_typeid () _GLIBCXX_USE_NOEXCEPT { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_typeid() _GLIBCXX_USE_NOEXCEPT;
+
+ // See comment in eh_exception.cc.
+ virtual const char* what() const _GLIBCXX_USE_NOEXCEPT;
+ };
+} // namespace std
+
+} // extern "C++"
+
+#pragma GCC visibility pop
+
+// The -*- C++ -*- dynamic memory management header.
+
+// Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 3, or (at your option)
+// any later version.
+//
+// GCC is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file new
+ * This is a Standard C++ Library header.
+ *
+ * The header @c new defines several functions to manage dynamic memory and
+ * handling memory allocation errors; see
+ * https://gcc.gnu.org/onlinedocs/libstdc++/manual/dynamic_memory.html
+ * for more.
+ */
+
+
+#define _NEW
+
+
+
+
+
+
+#pragma GCC visibility push(default)
+
+extern "C++" {
+
+namespace std
+{
+ /**
+ * @brief Exception possibly thrown by @c new.
+ * @ingroup exceptions
+ *
+ * @c bad_alloc (or classes derived from it) is used to report allocation
+ * errors from the throwing forms of @c new. */
+ class bad_alloc : public exception
+ {
+ public:
+ bad_alloc() throw() { }
+
+
+ bad_alloc(const bad_alloc&) = default;
+ bad_alloc& operator=(const bad_alloc&) = default;
+
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_alloc() throw();
+
+ // See comment in eh_exception.cc.
+ virtual const char* what() const throw();
+ };
+
+
+ class bad_array_new_length : public bad_alloc
+ {
+ public:
+ bad_array_new_length() throw() { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_array_new_length() throw();
+
+ // See comment in eh_exception.cc.
+ virtual const char* what() const throw();
+ };
+
+
+
+ enum class align_val_t: size_t {};
+
+
+ struct nothrow_t
+ {
+
+ explicit nothrow_t() = default;
+
+ };
+
+ extern const nothrow_t nothrow;
+
+ /** If you write your own error handler to be called by @c new, it must
+ * be of this type. */
+ typedef void (*new_handler)();
+
+ /// Takes a replacement handler as the argument, returns the
+ /// previous handler.
+ new_handler set_new_handler(new_handler) throw();
+
+
+ /// Return the current new handler.
+ new_handler get_new_handler() noexcept;
+
+} // namespace std
+
+//@{
+/** These are replaceable signatures:
+ * - normal single new and delete (no arguments, throw @c bad_alloc on error)
+ * - normal array new and delete (same)
+ * - @c nothrow single new and delete (take a @c nothrow argument, return
+ * @c NULL on error)
+ * - @c nothrow array new and delete (same)
+ *
+ * Placement new and delete signatures (take a memory address argument,
+ * does nothing) may not be replaced by a user's program.
+*/
+_GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
+ __attribute__((__externally_visible__));
+_GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
+ __attribute__((__externally_visible__));
+void operator delete(void*) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__));
+void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__));
+
+void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__));
+void operator delete[](void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__));
+
+_GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
+_GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
+void operator delete(void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__));
+void operator delete[](void*, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
+ __attribute__((__externally_visible__));
+
+_GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t)
+ __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
+_GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
+void operator delete(void*, std::align_val_t)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
+void operator delete(void*, std::align_val_t, const std::nothrow_t&)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
+_GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t)
+ __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
+_GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t, const std::nothrow_t&)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
+void operator delete[](void*, std::align_val_t)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
+void operator delete[](void*, std::align_val_t, const std::nothrow_t&)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
+
+void operator delete(void*, std::size_t, std::align_val_t)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
+void operator delete[](void*, std::size_t, std::align_val_t)
+ _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));
+
+
+
+// Default placement versions of operator new.
+_GLIBCXX_NODISCARD inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
+{ return __p; }
+_GLIBCXX_NODISCARD inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT
+{ return __p; }
+
+// Default placement versions of operator delete.
+inline void operator delete (void*, void*) _GLIBCXX_USE_NOEXCEPT { }
+inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { }
+//@}
+} // extern "C++"
+
+
+
+namespace std
+{
+#define __cpp_lib_launder 201606
+ /// Pointer optimization barrier [ptr.launder]
+ template<typename _Tp>
+ [[nodiscard]] constexpr _Tp*
+ launder(_Tp* __p) noexcept
+ { return __builtin_launder(__p); }
+
+ // The program is ill-formed if T is a function type or
+ // (possibly cv-qualified) void.
+
+ template<typename _Ret, typename... _Args _GLIBCXX_NOEXCEPT_PARM>
+ void launder(_Ret (*)(_Args...) _GLIBCXX_NOEXCEPT_QUAL) = delete;
+ template<typename _Ret, typename... _Args _GLIBCXX_NOEXCEPT_PARM>
+ void launder(_Ret (*)(_Args......) _GLIBCXX_NOEXCEPT_QUAL) = delete;
+
+ void launder(void*) = delete;
+ void launder(const void*) = delete;
+ void launder(volatile void*) = delete;
+ void launder(const volatile void*) = delete;
+}
+
+
+
+
+#pragma GCC visibility pop
+
+
+
+
+
+#define _GLIBCXX_EH_PTR_USED
+
+
+extern "C++" {
+
+namespace std
+{
+ class type_info;
+
+ /**
+ * @addtogroup exceptions
+ * @{
+ */
+
+ namespace __exception_ptr
+ {
+ class exception_ptr;
+ }
+
+ using __exception_ptr::exception_ptr;
+
+ /** Obtain an exception_ptr to the currently handled exception. If there
+ * is none, or the currently handled exception is foreign, return the null
+ * value.
+ */
+ exception_ptr current_exception() _GLIBCXX_USE_NOEXCEPT;
+
+ template<typename _Ex>
+ exception_ptr make_exception_ptr(_Ex) _GLIBCXX_USE_NOEXCEPT;
+
+ /// Throw the object pointed to by the exception_ptr.
+ void rethrow_exception(exception_ptr) __attribute__ ((__noreturn__));
+
+ namespace __exception_ptr
+ {
+ using std::rethrow_exception;
+
+ /**
+ * @brief An opaque pointer to an arbitrary exception.
+ * @ingroup exceptions
+ */
+ class exception_ptr
+ {
+ void* _M_exception_object;
+
+ explicit exception_ptr(void* __e) _GLIBCXX_USE_NOEXCEPT;
+
+ void _M_addref() _GLIBCXX_USE_NOEXCEPT;
+ void _M_release() _GLIBCXX_USE_NOEXCEPT;
+
+ void *_M_get() const _GLIBCXX_NOEXCEPT __attribute__ ((__pure__));
+
+ friend exception_ptr std::current_exception() _GLIBCXX_USE_NOEXCEPT;
+ friend void std::rethrow_exception(exception_ptr);
+ template<typename _Ex>
+ friend exception_ptr std::make_exception_ptr(_Ex) _GLIBCXX_USE_NOEXCEPT;
+
+ public:
+ exception_ptr() _GLIBCXX_USE_NOEXCEPT;
+
+ exception_ptr(const exception_ptr&) _GLIBCXX_USE_NOEXCEPT;
+
+
+ exception_ptr(nullptr_t) noexcept
+ : _M_exception_object(nullptr)
+ { }
+
+ exception_ptr(exception_ptr&& __o) noexcept
+ : _M_exception_object(__o._M_exception_object)
+ { __o._M_exception_object = nullptr; }
+
+
+
+
+
+
+
+
+
+ exception_ptr&
+ operator=(const exception_ptr&) _GLIBCXX_USE_NOEXCEPT;
+
+
+ exception_ptr&
+ operator=(exception_ptr&& __o) noexcept
+ {
+ exception_ptr(static_cast<exception_ptr&&>(__o)).swap(*this);
+ return *this;
+ }
+
+
+ ~exception_ptr() _GLIBCXX_USE_NOEXCEPT;
+
+ void
+ swap(exception_ptr&) _GLIBCXX_USE_NOEXCEPT;
+
+
+
+ explicit operator bool() const noexcept
+ { return _M_exception_object; }
+
+
+
+
+
+
+
+ friend _GLIBCXX_EH_PTR_USED bool
+ operator==(const exception_ptr& __x, const exception_ptr& __y)
+ _GLIBCXX_USE_NOEXCEPT
+ { return __x._M_exception_object == __y._M_exception_object; }
+
+ friend _GLIBCXX_EH_PTR_USED bool
+ operator!=(const exception_ptr& __x, const exception_ptr& __y)
+ _GLIBCXX_USE_NOEXCEPT
+ { return __x._M_exception_object != __y._M_exception_object; }
+
+
+ const class std::type_info*
+ __cxa_exception_type() const _GLIBCXX_USE_NOEXCEPT
+ __attribute__ ((__pure__));
+ };
+
+ _GLIBCXX_EH_PTR_USED
+ inline
+ exception_ptr::exception_ptr() _GLIBCXX_NOEXCEPT
+ : _M_exception_object(0)
+ { }
+
+ _GLIBCXX_EH_PTR_USED
+ inline
+ exception_ptr::exception_ptr(const exception_ptr& __other) _GLIBCXX_NOEXCEPT
+ : _M_exception_object(__other._M_exception_object)
+ {
+ if (_M_exception_object)
+ _M_addref();
+ }
+
+ _GLIBCXX_EH_PTR_USED
+ inline
+ exception_ptr::~exception_ptr() _GLIBCXX_USE_NOEXCEPT
+ {
+ if (_M_exception_object)
+ _M_release();
+ }
+
+ _GLIBCXX_EH_PTR_USED
+ inline exception_ptr&
+ exception_ptr::operator=(const exception_ptr& __other) _GLIBCXX_USE_NOEXCEPT
+ {
+ exception_ptr(__other).swap(*this);
+ return *this;
+ }
+
+ _GLIBCXX_EH_PTR_USED
+ inline void
+ exception_ptr::swap(exception_ptr &__other) _GLIBCXX_USE_NOEXCEPT
+ {
+ void *__tmp = _M_exception_object;
+ _M_exception_object = __other._M_exception_object;
+ __other._M_exception_object = __tmp;
+ }
+
+ /// @relates exception_ptr
+ inline void
+ swap(exception_ptr& __lhs, exception_ptr& __rhs)
+ { __lhs.swap(__rhs); }
+
+ /// @cond undocumented
+ template<typename _Ex>
+ inline void
+ __dest_thunk(void* __x)
+ { static_cast<_Ex*>(__x)->~_Ex(); }
+ /// @endcond
+
+ } // namespace __exception_ptr
+
+ /// Obtain an exception_ptr pointing to a copy of the supplied object.
+ template<typename _Ex>
+ exception_ptr
+ make_exception_ptr(_Ex __ex) _GLIBCXX_USE_NOEXCEPT
+ {
+
+ void* __e = __cxxabiv1::__cxa_allocate_exception(sizeof(_Ex));
+ (void) __cxxabiv1::__cxa_init_primary_exception(
+ __e, const_cast<std::type_info*>(&typeid(__ex)),
+ __exception_ptr::__dest_thunk<_Ex>);
+ try
+ {
+ ::new (__e) _Ex(__ex);
+ return exception_ptr(__e);
+ }
+ catch(...)
+ {
+ __cxxabiv1::__cxa_free_exception(__e);
+ return current_exception();
+ }
+ }
+
+#undef _GLIBCXX_EH_PTR_USED
+
+ // @} group exceptions
+} // namespace std
+
+} // extern "C++"
+
+#pragma GCC visibility pop
+
+// Nested Exception support header (nested_exception class) for -*- C++ -*-
+
+// Copyright (C) 2009-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/nested_exception.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{exception}
+ */
+
+
+#define _GLIBCXX_NESTED_EXCEPTION_H 1
+
+#pragma GCC visibility push(default)
+
+
+
+
+
+
+// Move, forward and identity for C++11 + swap -*- C++ -*-
+
+// Copyright (C) 2007-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/move.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{utility}
+ */
+
+
+#define _MOVE_H 1
+
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // Used, in C++03 mode too, by allocators, etc.
+ /**
+ * @brief Same as C++11 std::addressof
+ * @ingroup utilities
+ */
+ template<typename _Tp>
+ inline _GLIBCXX_CONSTEXPR _Tp*
+ __addressof(_Tp& __r) _GLIBCXX_NOEXCEPT
+ { return __builtin_addressof(__r); }
+
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// C++11 <type_traits> -*- C++ -*-
+
+// Copyright (C) 2007-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file include/type_traits
+ * This is a Standard C++ Library header.
+ */
+
+
+#define _GLIBCXX_TYPE_TRAITS 1
+
+
+
+
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @defgroup metaprogramming Metaprogramming
+ * @ingroup utilities
+ *
+ * Template utilities for compile-time introspection and modification,
+ * including type classification traits, type property inspection traits
+ * and type transformation traits.
+ *
+ * @{
+ */
+
+ /// integral_constant
+ template<typename _Tp, _Tp __v>
+ struct integral_constant
+ {
+ static constexpr _Tp value = __v;
+ typedef _Tp value_type;
+ typedef integral_constant<_Tp, __v> type;
+ constexpr operator value_type() const noexcept { return value; }
+
+
+#define __cpp_lib_integral_constant_callable 201304
+
+ constexpr value_type operator()() const noexcept { return value; }
+
+ };
+
+ template<typename _Tp, _Tp __v>
+ constexpr _Tp integral_constant<_Tp, __v>::value;
+
+ /// The type used as a compile-time boolean with true value.
+ typedef integral_constant<bool, true> true_type;
+
+ /// The type used as a compile-time boolean with false value.
+ typedef integral_constant<bool, false> false_type;
+
+ template<bool __v>
+ using __bool_constant = integral_constant<bool, __v>;
+
+
+#define __cpp_lib_bool_constant 201505
+ template<bool __v>
+ using bool_constant = integral_constant<bool, __v>;
+
+
+ // Meta programming helper types.
+
+ template<bool, typename, typename>
+ struct conditional;
+
+ template <typename _Type>
+ struct __type_identity
+ { using type = _Type; };
+
+ template<typename _Tp>
+ using __type_identity_t = typename __type_identity<_Tp>::type;
+
+ template<typename...>
+ struct __or_;
+
+ template<>
+ struct __or_<>
+ : public false_type
+ { };
+
+ template<typename _B1>
+ struct __or_<_B1>
+ : public _B1
+ { };
+
+ template<typename _B1, typename _B2>
+ struct __or_<_B1, _B2>
+ : public conditional<_B1::value, _B1, _B2>::type
+ { };
+
+ template<typename _B1, typename _B2, typename _B3, typename... _Bn>
+ struct __or_<_B1, _B2, _B3, _Bn...>
+ : public conditional<_B1::value, _B1, __or_<_B2, _B3, _Bn...>>::type
+ { };
+
+ template<typename...>
+ struct __and_;
+
+ template<>
+ struct __and_<>
+ : public true_type
+ { };
+
+ template<typename _B1>
+ struct __and_<_B1>
+ : public _B1
+ { };
+
+ template<typename _B1, typename _B2>
+ struct __and_<_B1, _B2>
+ : public conditional<_B1::value, _B2, _B1>::type
+ { };
+
+ template<typename _B1, typename _B2, typename _B3, typename... _Bn>
+ struct __and_<_B1, _B2, _B3, _Bn...>
+ : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type
+ { };
+
+ template<typename _Pp>
+ struct __not_
+ : public __bool_constant<!bool(_Pp::value)>
+ { };
+
+
+
+ template<typename... _Bn>
+ inline constexpr bool __or_v = __or_<_Bn...>::value;
+ template<typename... _Bn>
+ inline constexpr bool __and_v = __and_<_Bn...>::value;
+
+#define __cpp_lib_logical_traits 201510
+
+ template<typename... _Bn>
+ struct conjunction
+ : __and_<_Bn...>
+ { };
+
+ template<typename... _Bn>
+ struct disjunction
+ : __or_<_Bn...>
+ { };
+
+ template<typename _Pp>
+ struct negation
+ : __not_<_Pp>
+ { };
+
+ template<typename... _Bn>
+ inline constexpr bool conjunction_v = conjunction<_Bn...>::value;
+
+ template<typename... _Bn>
+ inline constexpr bool disjunction_v = disjunction<_Bn...>::value;
+
+ template<typename _Pp>
+ inline constexpr bool negation_v = negation<_Pp>::value;
+
+
+
+ // Forward declarations
+ template<typename>
+ struct is_reference;
+ template<typename>
+ struct is_function;
+ template<typename>
+ struct is_void;
+ template<typename>
+ struct __is_array_unknown_bounds;
+
+ // Helper functions that return false_type for incomplete classes,
+ // incomplete unions and arrays of known bound from those.
+
+ template <typename _Tp, size_t = sizeof(_Tp)>
+ constexpr true_type __is_complete_or_unbounded(__type_identity<_Tp>)
+ { return {}; }
+
+ template <typename _TypeIdentity,
+ typename _NestedType = typename _TypeIdentity::type>
+ constexpr typename __or_<
+ is_reference<_NestedType>,
+ is_function<_NestedType>,
+ is_void<_NestedType>,
+ __is_array_unknown_bounds<_NestedType>
+ >::type __is_complete_or_unbounded(_TypeIdentity)
+ { return {}; }
+
+ // For several sfinae-friendly trait implementations we transport both the
+ // result information (as the member type) and the failure information (no
+ // member type). This is very similar to std::enable_if, but we cannot use
+ // them, because we need to derive from them as an implementation detail.
+
+ template<typename _Tp>
+ struct __success_type
+ { typedef _Tp type; };
+
+ struct __failure_type
+ { };
+
+ template<typename>
+ struct remove_cv;
+
+ // __remove_cv_t (std::remove_cv_t for C++11).
+ template<typename _Tp>
+ using __remove_cv_t = typename remove_cv<_Tp>::type;
+
+ template<typename>
+ struct is_const;
+
+ // Primary type categories.
+
+ template<typename>
+ struct __is_void_helper
+ : public false_type { };
+
+ template<>
+ struct __is_void_helper<void>
+ : public true_type { };
+
+ /// is_void
+ template<typename _Tp>
+ struct is_void
+ : public __is_void_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ template<typename>
+ struct __is_integral_helper
+ : public false_type { };
+
+ template<>
+ struct __is_integral_helper<bool>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<char>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<signed char>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<unsigned char>
+ : public true_type { };
+
+ // We want is_integral<wchar_t> to be true (and make_signed/unsigned to work)
+ // even when libc doesn't provide working <wchar.h> and related functions,
+ // so check __WCHAR_TYPE__ instead of _GLIBCXX_USE_WCHAR_T.
+
+ template<>
+ struct __is_integral_helper<wchar_t>
+ : public true_type { };
+
+
+
+
+
+
+
+
+ template<>
+ struct __is_integral_helper<char16_t>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<char32_t>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<short>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<unsigned short>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<int>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<unsigned int>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<long>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<unsigned long>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<long long>
+ : public true_type { };
+
+ template<>
+ struct __is_integral_helper<unsigned long long>
+ : public true_type { };
+
+ // Conditionalizing on __STRICT_ANSI__ here will break any port that
+ // uses one of these types for size_t.
+
+ /// is_integral
+ template<typename _Tp>
+ struct is_integral
+ : public __is_integral_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ template<typename>
+ struct __is_floating_point_helper
+ : public false_type { };
+
+ template<>
+ struct __is_floating_point_helper<float>
+ : public true_type { };
+
+ template<>
+ struct __is_floating_point_helper<double>
+ : public true_type { };
+
+ template<>
+ struct __is_floating_point_helper<long double>
+ : public true_type { };
+
+
+
+
+
+
+
+ /// is_floating_point
+ template<typename _Tp>
+ struct is_floating_point
+ : public __is_floating_point_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ /// is_array
+ template<typename>
+ struct is_array
+ : public false_type { };
+
+ template<typename _Tp, std::size_t _Size>
+ struct is_array<_Tp[_Size]>
+ : public true_type { };
+
+ template<typename _Tp>
+ struct is_array<_Tp[]>
+ : public true_type { };
+
+ template<typename>
+ struct __is_pointer_helper
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_pointer_helper<_Tp*>
+ : public true_type { };
+
+ /// is_pointer
+ template<typename _Tp>
+ struct is_pointer
+ : public __is_pointer_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ /// is_lvalue_reference
+ template<typename>
+ struct is_lvalue_reference
+ : public false_type { };
+
+ template<typename _Tp>
+ struct is_lvalue_reference<_Tp&>
+ : public true_type { };
+
+ /// is_rvalue_reference
+ template<typename>
+ struct is_rvalue_reference
+ : public false_type { };
+
+ template<typename _Tp>
+ struct is_rvalue_reference<_Tp&&>
+ : public true_type { };
+
+ template<typename>
+ struct __is_member_object_pointer_helper
+ : public false_type { };
+
+ template<typename _Tp, typename _Cp>
+ struct __is_member_object_pointer_helper<_Tp _Cp::*>
+ : public __not_<is_function<_Tp>>::type { };
+
+ /// is_member_object_pointer
+ template<typename _Tp>
+ struct is_member_object_pointer
+ : public __is_member_object_pointer_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ template<typename>
+ struct __is_member_function_pointer_helper
+ : public false_type { };
+
+ template<typename _Tp, typename _Cp>
+ struct __is_member_function_pointer_helper<_Tp _Cp::*>
+ : public is_function<_Tp>::type { };
+
+ /// is_member_function_pointer
+ template<typename _Tp>
+ struct is_member_function_pointer
+ : public __is_member_function_pointer_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ /// is_enum
+ template<typename _Tp>
+ struct is_enum
+ : public integral_constant<bool, __is_enum(_Tp)>
+ { };
+
+ /// is_union
+ template<typename _Tp>
+ struct is_union
+ : public integral_constant<bool, __is_union(_Tp)>
+ { };
+
+ /// is_class
+ template<typename _Tp>
+ struct is_class
+ : public integral_constant<bool, __is_class(_Tp)>
+ { };
+
+ /// is_function
+ template<typename _Tp>
+ struct is_function
+ : public __bool_constant<!is_const<const _Tp>::value> { };
+
+ template<typename _Tp>
+ struct is_function<_Tp&>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct is_function<_Tp&&>
+ : public false_type { };
+
+#define __cpp_lib_is_null_pointer 201309
+
+ template<typename>
+ struct __is_null_pointer_helper
+ : public false_type { };
+
+ template<>
+ struct __is_null_pointer_helper<std::nullptr_t>
+ : public true_type { };
+
+ /// is_null_pointer (LWG 2247).
+ template<typename _Tp>
+ struct is_null_pointer
+ : public __is_null_pointer_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ /// __is_nullptr_t (deprecated extension).
+ template<typename _Tp>
+ struct __is_nullptr_t
+ : public is_null_pointer<_Tp>
+ { } _GLIBCXX_DEPRECATED_SUGGEST("std::is_null_pointer");
+
+ // Composite type categories.
+
+ /// is_reference
+ template<typename _Tp>
+ struct is_reference
+ : public __or_<is_lvalue_reference<_Tp>,
+ is_rvalue_reference<_Tp>>::type
+ { };
+
+ /// is_arithmetic
+ template<typename _Tp>
+ struct is_arithmetic
+ : public __or_<is_integral<_Tp>, is_floating_point<_Tp>>::type
+ { };
+
+ /// is_fundamental
+ template<typename _Tp>
+ struct is_fundamental
+ : public __or_<is_arithmetic<_Tp>, is_void<_Tp>,
+ is_null_pointer<_Tp>>::type
+ { };
+
+ /// is_object
+ template<typename _Tp>
+ struct is_object
+ : public __not_<__or_<is_function<_Tp>, is_reference<_Tp>,
+ is_void<_Tp>>>::type
+ { };
+
+ template<typename>
+ struct is_member_pointer;
+
+ /// is_scalar
+ template<typename _Tp>
+ struct is_scalar
+ : public __or_<is_arithmetic<_Tp>, is_enum<_Tp>, is_pointer<_Tp>,
+ is_member_pointer<_Tp>, is_null_pointer<_Tp>>::type
+ { };
+
+ /// is_compound
+ template<typename _Tp>
+ struct is_compound
+ : public __not_<is_fundamental<_Tp>>::type { };
+
+ template<typename _Tp>
+ struct __is_member_pointer_helper
+ : public false_type { };
+
+ template<typename _Tp, typename _Cp>
+ struct __is_member_pointer_helper<_Tp _Cp::*>
+ : public true_type { };
+
+ /// is_member_pointer
+ template<typename _Tp>
+ struct is_member_pointer
+ : public __is_member_pointer_helper<__remove_cv_t<_Tp>>::type
+ { };
+
+ template<typename, typename>
+ struct is_same;
+
+ template<typename _Tp, typename... _Types>
+ using __is_one_of = __or_<is_same<_Tp, _Types>...>;
+
+ // Check if a type is one of the signed integer types.
+ template<typename _Tp>
+ using __is_signed_integer = __is_one_of<__remove_cv_t<_Tp>,
+ signed char, signed short, signed int, signed long,
+ signed long long
+
+
+
+
+
+
+
+
+
+
+
+
+ >;
+
+ // Check if a type is one of the unsigned integer types.
+ template<typename _Tp>
+ using __is_unsigned_integer = __is_one_of<__remove_cv_t<_Tp>,
+ unsigned char, unsigned short, unsigned int, unsigned long,
+ unsigned long long
+
+
+
+
+
+
+
+
+
+
+
+
+ >;
+
+ // Check if a type is one of the signed or unsigned integer types.
+ template<typename _Tp>
+ using __is_standard_integer
+ = __or_<__is_signed_integer<_Tp>, __is_unsigned_integer<_Tp>>;
+
+ // __void_t (std::void_t for C++11)
+ template<typename...> using __void_t = void;
+
+ // Utility to detect referenceable types ([defns.referenceable]).
+
+ template<typename _Tp, typename = void>
+ struct __is_referenceable
+ : public false_type
+ { };
+
+ template<typename _Tp>
+ struct __is_referenceable<_Tp, __void_t<_Tp&>>
+ : public true_type
+ { };
+
+ // Type properties.
+
+ /// is_const
+ template<typename>
+ struct is_const
+ : public false_type { };
+
+ template<typename _Tp>
+ struct is_const<_Tp const>
+ : public true_type { };
+
+ /// is_volatile
+ template<typename>
+ struct is_volatile
+ : public false_type { };
+
+ template<typename _Tp>
+ struct is_volatile<_Tp volatile>
+ : public true_type { };
+
+ /// is_trivial
+ template<typename _Tp>
+ struct is_trivial
+ : public integral_constant<bool, __is_trivial(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ // is_trivially_copyable
+ template<typename _Tp>
+ struct is_trivially_copyable
+ : public integral_constant<bool, __is_trivially_copyable(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_standard_layout
+ template<typename _Tp>
+ struct is_standard_layout
+ : public integral_constant<bool, __is_standard_layout(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_pod (deprecated in C++20)
+ // Could use is_standard_layout && is_trivial instead of the builtin.
+ template<typename _Tp>
+ struct
+ _GLIBCXX20_DEPRECATED("use is_standard_layout && is_trivial instead")
+ is_pod
+ : public integral_constant<bool, __is_pod(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_literal_type
+ template<typename _Tp>
+ struct
+ _GLIBCXX17_DEPRECATED
+ is_literal_type
+ : public integral_constant<bool, __is_literal_type(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_empty
+ template<typename _Tp>
+ struct is_empty
+ : public integral_constant<bool, __is_empty(_Tp)>
+ { };
+
+ /// is_polymorphic
+ template<typename _Tp>
+ struct is_polymorphic
+ : public integral_constant<bool, __is_polymorphic(_Tp)>
+ { };
+
+
+#define __cpp_lib_is_final 201402L
+ /// is_final
+ template<typename _Tp>
+ struct is_final
+ : public integral_constant<bool, __is_final(_Tp)>
+ { };
+
+
+ /// is_abstract
+ template<typename _Tp>
+ struct is_abstract
+ : public integral_constant<bool, __is_abstract(_Tp)>
+ { };
+
+ template<typename _Tp,
+ bool = is_arithmetic<_Tp>::value>
+ struct __is_signed_helper
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_signed_helper<_Tp, true>
+ : public integral_constant<bool, _Tp(-1) < _Tp(0)>
+ { };
+
+ /// is_signed
+ template<typename _Tp>
+ struct is_signed
+ : public __is_signed_helper<_Tp>::type
+ { };
+
+ /// is_unsigned
+ template<typename _Tp>
+ struct is_unsigned
+ : public __and_<is_arithmetic<_Tp>, __not_<is_signed<_Tp>>>
+ { };
+
+
+ // Destructible and constructible type properties.
+
+ /**
+ * @brief Utility to simplify expressions used in unevaluated operands
+ * @ingroup utilities
+ */
+
+ template<typename _Tp, typename _Up = _Tp&&>
+ _Up
+ __declval(int);
+
+ template<typename _Tp>
+ _Tp
+ __declval(long);
+
+ template<typename _Tp>
+ auto declval() noexcept -> decltype(__declval<_Tp>(0));
+
+ template<typename, unsigned = 0>
+ struct extent;
+
+ template<typename>
+ struct remove_all_extents;
+
+ template<typename _Tp>
+ struct __is_array_known_bounds
+ : public integral_constant<bool, (extent<_Tp>::value > 0)>
+ { };
+
+ template<typename _Tp>
+ struct __is_array_unknown_bounds
+ : public __and_<is_array<_Tp>, __not_<extent<_Tp>>>
+ { };
+
+ // In N3290 is_destructible does not say anything about function
+ // types and abstract types, see LWG 2049. This implementation
+ // describes function types as non-destructible and all complete
+ // object types as destructible, iff the explicit destructor
+ // call expression is wellformed.
+ struct __do_is_destructible_impl
+ {
+ template<typename _Tp, typename = decltype(declval<_Tp&>().~_Tp())>
+ static true_type __test(int);
+
+ template<typename>
+ static false_type __test(...);
+ };
+
+ template<typename _Tp>
+ struct __is_destructible_impl
+ : public __do_is_destructible_impl
+ {
+ typedef decltype(__test<_Tp>(0)) type;
+ };
+
+ template<typename _Tp,
+ bool = __or_<is_void<_Tp>,
+ __is_array_unknown_bounds<_Tp>,
+ is_function<_Tp>>::value,
+ bool = __or_<is_reference<_Tp>, is_scalar<_Tp>>::value>
+ struct __is_destructible_safe;
+
+ template<typename _Tp>
+ struct __is_destructible_safe<_Tp, false, false>
+ : public __is_destructible_impl<typename
+ remove_all_extents<_Tp>::type>::type
+ { };
+
+ template<typename _Tp>
+ struct __is_destructible_safe<_Tp, true, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_destructible_safe<_Tp, false, true>
+ : public true_type { };
+
+ /// is_destructible
+ template<typename _Tp>
+ struct is_destructible
+ : public __is_destructible_safe<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ // is_nothrow_destructible requires that is_destructible is
+ // satisfied as well. We realize that by mimicing the
+ // implementation of is_destructible but refer to noexcept(expr)
+ // instead of decltype(expr).
+ struct __do_is_nt_destructible_impl
+ {
+ template<typename _Tp>
+ static __bool_constant<noexcept(declval<_Tp&>().~_Tp())>
+ __test(int);
+
+ template<typename>
+ static false_type __test(...);
+ };
+
+ template<typename _Tp>
+ struct __is_nt_destructible_impl
+ : public __do_is_nt_destructible_impl
+ {
+ typedef decltype(__test<_Tp>(0)) type;
+ };
+
+ template<typename _Tp,
+ bool = __or_<is_void<_Tp>,
+ __is_array_unknown_bounds<_Tp>,
+ is_function<_Tp>>::value,
+ bool = __or_<is_reference<_Tp>, is_scalar<_Tp>>::value>
+ struct __is_nt_destructible_safe;
+
+ template<typename _Tp>
+ struct __is_nt_destructible_safe<_Tp, false, false>
+ : public __is_nt_destructible_impl<typename
+ remove_all_extents<_Tp>::type>::type
+ { };
+
+ template<typename _Tp>
+ struct __is_nt_destructible_safe<_Tp, true, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_nt_destructible_safe<_Tp, false, true>
+ : public true_type { };
+
+ /// is_nothrow_destructible
+ template<typename _Tp>
+ struct is_nothrow_destructible
+ : public __is_nt_destructible_safe<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, typename... _Args>
+ struct __is_constructible_impl
+ : public __bool_constant<__is_constructible(_Tp, _Args...)>
+ { };
+
+ /// is_constructible
+ template<typename _Tp, typename... _Args>
+ struct is_constructible
+ : public __is_constructible_impl<_Tp, _Args...>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_default_constructible
+ template<typename _Tp>
+ struct is_default_constructible
+ : public __is_constructible_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_copy_constructible_impl;
+
+ template<typename _Tp>
+ struct __is_copy_constructible_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_copy_constructible_impl<_Tp, true>
+ : public __is_constructible_impl<_Tp, const _Tp&>
+ { };
+
+ /// is_copy_constructible
+ template<typename _Tp>
+ struct is_copy_constructible
+ : public __is_copy_constructible_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_move_constructible_impl;
+
+ template<typename _Tp>
+ struct __is_move_constructible_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_move_constructible_impl<_Tp, true>
+ : public __is_constructible_impl<_Tp, _Tp&&>
+ { };
+
+ /// is_move_constructible
+ template<typename _Tp>
+ struct is_move_constructible
+ : public __is_move_constructible_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, typename... _Args>
+ using __is_nothrow_constructible_impl
+ = __bool_constant<__is_nothrow_constructible(_Tp, _Args...)>;
+
+ /// is_nothrow_constructible
+ template<typename _Tp, typename... _Args>
+ struct is_nothrow_constructible
+ : public __is_nothrow_constructible_impl<_Tp, _Args...>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_nothrow_default_constructible
+ template<typename _Tp>
+ struct is_nothrow_default_constructible
+ : public __bool_constant<__is_nothrow_constructible(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_nothrow_copy_constructible_impl;
+
+ template<typename _Tp>
+ struct __is_nothrow_copy_constructible_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_nothrow_copy_constructible_impl<_Tp, true>
+ : public __is_nothrow_constructible_impl<_Tp, const _Tp&>
+ { };
+
+ /// is_nothrow_copy_constructible
+ template<typename _Tp>
+ struct is_nothrow_copy_constructible
+ : public __is_nothrow_copy_constructible_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_nothrow_move_constructible_impl;
+
+ template<typename _Tp>
+ struct __is_nothrow_move_constructible_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_nothrow_move_constructible_impl<_Tp, true>
+ : public __is_nothrow_constructible_impl<_Tp, _Tp&&>
+ { };
+
+ /// is_nothrow_move_constructible
+ template<typename _Tp>
+ struct is_nothrow_move_constructible
+ : public __is_nothrow_move_constructible_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_assignable
+ template<typename _Tp, typename _Up>
+ struct is_assignable
+ : public __bool_constant<__is_assignable(_Tp, _Up)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_copy_assignable_impl;
+
+ template<typename _Tp>
+ struct __is_copy_assignable_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_copy_assignable_impl<_Tp, true>
+ : public __bool_constant<__is_assignable(_Tp&, const _Tp&)>
+ { };
+
+ /// is_copy_assignable
+ template<typename _Tp>
+ struct is_copy_assignable
+ : public __is_copy_assignable_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_move_assignable_impl;
+
+ template<typename _Tp>
+ struct __is_move_assignable_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_move_assignable_impl<_Tp, true>
+ : public __bool_constant<__is_assignable(_Tp&, _Tp&&)>
+ { };
+
+ /// is_move_assignable
+ template<typename _Tp>
+ struct is_move_assignable
+ : public __is_move_assignable_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, typename _Up>
+ using __is_nothrow_assignable_impl
+ = __bool_constant<__is_nothrow_assignable(_Tp, _Up)>;
+
+ /// is_nothrow_assignable
+ template<typename _Tp, typename _Up>
+ struct is_nothrow_assignable
+ : public __is_nothrow_assignable_impl<_Tp, _Up>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_nt_copy_assignable_impl;
+
+ template<typename _Tp>
+ struct __is_nt_copy_assignable_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_nt_copy_assignable_impl<_Tp, true>
+ : public __is_nothrow_assignable_impl<_Tp&, const _Tp&>
+ { };
+
+ /// is_nothrow_copy_assignable
+ template<typename _Tp>
+ struct is_nothrow_copy_assignable
+ : public __is_nt_copy_assignable_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_nt_move_assignable_impl;
+
+ template<typename _Tp>
+ struct __is_nt_move_assignable_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_nt_move_assignable_impl<_Tp, true>
+ : public __is_nothrow_assignable_impl<_Tp&, _Tp&&>
+ { };
+
+ /// is_nothrow_move_assignable
+ template<typename _Tp>
+ struct is_nothrow_move_assignable
+ : public __is_nt_move_assignable_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_trivially_constructible
+ template<typename _Tp, typename... _Args>
+ struct is_trivially_constructible
+ : public __bool_constant<__is_trivially_constructible(_Tp, _Args...)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_trivially_default_constructible
+ template<typename _Tp>
+ struct is_trivially_default_constructible
+ : public __bool_constant<__is_trivially_constructible(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ struct __do_is_implicitly_default_constructible_impl
+ {
+ template <typename _Tp>
+ static void __helper(const _Tp&);
+
+ template <typename _Tp>
+ static true_type __test(const _Tp&,
+ decltype(__helper<const _Tp&>({}))* = 0);
+
+ static false_type __test(...);
+ };
+
+ template<typename _Tp>
+ struct __is_implicitly_default_constructible_impl
+ : public __do_is_implicitly_default_constructible_impl
+ {
+ typedef decltype(__test(declval<_Tp>())) type;
+ };
+
+ template<typename _Tp>
+ struct __is_implicitly_default_constructible_safe
+ : public __is_implicitly_default_constructible_impl<_Tp>::type
+ { };
+
+ template <typename _Tp>
+ struct __is_implicitly_default_constructible
+ : public __and_<__is_constructible_impl<_Tp>,
+ __is_implicitly_default_constructible_safe<_Tp>>
+ { };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_trivially_copy_constructible_impl;
+
+ template<typename _Tp>
+ struct __is_trivially_copy_constructible_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_trivially_copy_constructible_impl<_Tp, true>
+ : public __and_<__is_copy_constructible_impl<_Tp>,
+ integral_constant<bool,
+ __is_trivially_constructible(_Tp, const _Tp&)>>
+ { };
+
+ /// is_trivially_copy_constructible
+ template<typename _Tp>
+ struct is_trivially_copy_constructible
+ : public __is_trivially_copy_constructible_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_trivially_move_constructible_impl;
+
+ template<typename _Tp>
+ struct __is_trivially_move_constructible_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_trivially_move_constructible_impl<_Tp, true>
+ : public __and_<__is_move_constructible_impl<_Tp>,
+ integral_constant<bool,
+ __is_trivially_constructible(_Tp, _Tp&&)>>
+ { };
+
+ /// is_trivially_move_constructible
+ template<typename _Tp>
+ struct is_trivially_move_constructible
+ : public __is_trivially_move_constructible_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_trivially_assignable
+ template<typename _Tp, typename _Up>
+ struct is_trivially_assignable
+ : public __bool_constant<__is_trivially_assignable(_Tp, _Up)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_trivially_copy_assignable_impl;
+
+ template<typename _Tp>
+ struct __is_trivially_copy_assignable_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_trivially_copy_assignable_impl<_Tp, true>
+ : public __bool_constant<__is_trivially_assignable(_Tp&, const _Tp&)>
+ { };
+
+ /// is_trivially_copy_assignable
+ template<typename _Tp>
+ struct is_trivially_copy_assignable
+ : public __is_trivially_copy_assignable_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __is_trivially_move_assignable_impl;
+
+ template<typename _Tp>
+ struct __is_trivially_move_assignable_impl<_Tp, false>
+ : public false_type { };
+
+ template<typename _Tp>
+ struct __is_trivially_move_assignable_impl<_Tp, true>
+ : public __bool_constant<__is_trivially_assignable(_Tp&, _Tp&&)>
+ { };
+
+ /// is_trivially_move_assignable
+ template<typename _Tp>
+ struct is_trivially_move_assignable
+ : public __is_trivially_move_assignable_impl<_Tp>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_trivially_destructible
+ template<typename _Tp>
+ struct is_trivially_destructible
+ : public __and_<__is_destructible_safe<_Tp>,
+ __bool_constant<__has_trivial_destructor(_Tp)>>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+
+ /// has_virtual_destructor
+ template<typename _Tp>
+ struct has_virtual_destructor
+ : public integral_constant<bool, __has_virtual_destructor(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+
+ // type property queries.
+
+ /// alignment_of
+ template<typename _Tp>
+ struct alignment_of
+ : public integral_constant<std::size_t, alignof(_Tp)>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// rank
+ template<typename>
+ struct rank
+ : public integral_constant<std::size_t, 0> { };
+
+ template<typename _Tp, std::size_t _Size>
+ struct rank<_Tp[_Size]>
+ : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
+
+ template<typename _Tp>
+ struct rank<_Tp[]>
+ : public integral_constant<std::size_t, 1 + rank<_Tp>::value> { };
+
+ /// extent
+ template<typename, unsigned _Uint>
+ struct extent
+ : public integral_constant<std::size_t, 0> { };
+
+ template<typename _Tp, unsigned _Uint, std::size_t _Size>
+ struct extent<_Tp[_Size], _Uint>
+ : public integral_constant<std::size_t,
+ _Uint == 0 ? _Size : extent<_Tp,
+ _Uint - 1>::value>
+ { };
+
+ template<typename _Tp, unsigned _Uint>
+ struct extent<_Tp[], _Uint>
+ : public integral_constant<std::size_t,
+ _Uint == 0 ? 0 : extent<_Tp,
+ _Uint - 1>::value>
+ { };
+
+
+ // Type relations.
+
+ /// is_same
+ template<typename _Tp, typename _Up>
+ struct is_same
+
+ : public integral_constant<bool, __is_same(_Tp, _Up)>
+
+
+
+ { };
+
+
+
+
+
+
+
+
+ /// is_base_of
+ template<typename _Base, typename _Derived>
+ struct is_base_of
+ : public integral_constant<bool, __is_base_of(_Base, _Derived)>
+ { };
+
+ template<typename _From, typename _To,
+ bool = __or_<is_void<_From>, is_function<_To>,
+ is_array<_To>>::value>
+ struct __is_convertible_helper
+ {
+ typedef typename is_void<_To>::type type;
+ };
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
+ template<typename _From, typename _To>
+ class __is_convertible_helper<_From, _To, false>
+ {
+ template<typename _To1>
+ static void __test_aux(_To1) noexcept;
+
+ template<typename _From1, typename _To1,
+ typename = decltype(__test_aux<_To1>(std::declval<_From1>()))>
+ static true_type
+ __test(int);
+
+ template<typename, typename>
+ static false_type
+ __test(...);
+
+ public:
+ typedef decltype(__test<_From, _To>(0)) type;
+ };
+#pragma GCC diagnostic pop
+
+ /// is_convertible
+ template<typename _From, typename _To>
+ struct is_convertible
+ : public __is_convertible_helper<_From, _To>::type
+ { };
+
+ // helper trait for unique_ptr<T[]>, shared_ptr<T[]>, and span<T, N>
+ template<typename _ToElementType, typename _FromElementType>
+ using __is_array_convertible
+ = is_convertible<_FromElementType(*)[], _ToElementType(*)[]>;
+
+ template<typename _From, typename _To,
+ bool = __or_<is_void<_From>, is_function<_To>,
+ is_array<_To>>::value>
+ struct __is_nt_convertible_helper
+ : is_void<_To>
+ { };
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
+ template<typename _From, typename _To>
+ class __is_nt_convertible_helper<_From, _To, false>
+ {
+ template<typename _To1>
+ static void __test_aux(_To1) noexcept;
+
+ template<typename _From1, typename _To1>
+ static
+ __bool_constant<noexcept(__test_aux<_To1>(std::declval<_From1>()))>
+ __test(int);
+
+ template<typename, typename>
+ static false_type
+ __test(...);
+
+ public:
+ using type = decltype(__test<_From, _To>(0));
+ };
+#pragma GCC diagnostic pop
+
+ // is_nothrow_convertible for C++11
+ template<typename _From, typename _To>
+ struct __is_nothrow_convertible
+ : public __is_nt_convertible_helper<_From, _To>::type
+ { };
+
+
+ // Const-volatile modifications.
+
+ /// remove_const
+ template<typename _Tp>
+ struct remove_const
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct remove_const<_Tp const>
+ { typedef _Tp type; };
+
+ /// remove_volatile
+ template<typename _Tp>
+ struct remove_volatile
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct remove_volatile<_Tp volatile>
+ { typedef _Tp type; };
+
+ /// remove_cv
+ template<typename _Tp>
+ struct remove_cv
+ { using type = _Tp; };
+
+ template<typename _Tp>
+ struct remove_cv<const _Tp>
+ { using type = _Tp; };
+
+ template<typename _Tp>
+ struct remove_cv<volatile _Tp>
+ { using type = _Tp; };
+
+ template<typename _Tp>
+ struct remove_cv<const volatile _Tp>
+ { using type = _Tp; };
+
+ /// add_const
+ template<typename _Tp>
+ struct add_const
+ { typedef _Tp const type; };
+
+ /// add_volatile
+ template<typename _Tp>
+ struct add_volatile
+ { typedef _Tp volatile type; };
+
+ /// add_cv
+ template<typename _Tp>
+ struct add_cv
+ {
+ typedef typename
+ add_const<typename add_volatile<_Tp>::type>::type type;
+ };
+
+
+
+#define __cpp_lib_transformation_trait_aliases 201304
+
+ /// Alias template for remove_const
+ template<typename _Tp>
+ using remove_const_t = typename remove_const<_Tp>::type;
+
+ /// Alias template for remove_volatile
+ template<typename _Tp>
+ using remove_volatile_t = typename remove_volatile<_Tp>::type;
+
+ /// Alias template for remove_cv
+ template<typename _Tp>
+ using remove_cv_t = typename remove_cv<_Tp>::type;
+
+ /// Alias template for add_const
+ template<typename _Tp>
+ using add_const_t = typename add_const<_Tp>::type;
+
+ /// Alias template for add_volatile
+ template<typename _Tp>
+ using add_volatile_t = typename add_volatile<_Tp>::type;
+
+ /// Alias template for add_cv
+ template<typename _Tp>
+ using add_cv_t = typename add_cv<_Tp>::type;
+
+
+ // Reference transformations.
+
+ /// remove_reference
+ template<typename _Tp>
+ struct remove_reference
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct remove_reference<_Tp&>
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct remove_reference<_Tp&&>
+ { typedef _Tp type; };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __add_lvalue_reference_helper
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct __add_lvalue_reference_helper<_Tp, true>
+ { typedef _Tp& type; };
+
+ /// add_lvalue_reference
+ template<typename _Tp>
+ struct add_lvalue_reference
+ : public __add_lvalue_reference_helper<_Tp>
+ { };
+
+ template<typename _Tp, bool = __is_referenceable<_Tp>::value>
+ struct __add_rvalue_reference_helper
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct __add_rvalue_reference_helper<_Tp, true>
+ { typedef _Tp&& type; };
+
+ /// add_rvalue_reference
+ template<typename _Tp>
+ struct add_rvalue_reference
+ : public __add_rvalue_reference_helper<_Tp>
+ { };
+
+
+ /// Alias template for remove_reference
+ template<typename _Tp>
+ using remove_reference_t = typename remove_reference<_Tp>::type;
+
+ /// Alias template for add_lvalue_reference
+ template<typename _Tp>
+ using add_lvalue_reference_t = typename add_lvalue_reference<_Tp>::type;
+
+ /// Alias template for add_rvalue_reference
+ template<typename _Tp>
+ using add_rvalue_reference_t = typename add_rvalue_reference<_Tp>::type;
+
+
+ // Sign modifications.
+
+ // Utility for constructing identically cv-qualified types.
+ template<typename _Unqualified, bool _IsConst, bool _IsVol>
+ struct __cv_selector;
+
+ template<typename _Unqualified>
+ struct __cv_selector<_Unqualified, false, false>
+ { typedef _Unqualified __type; };
+
+ template<typename _Unqualified>
+ struct __cv_selector<_Unqualified, false, true>
+ { typedef volatile _Unqualified __type; };
+
+ template<typename _Unqualified>
+ struct __cv_selector<_Unqualified, true, false>
+ { typedef const _Unqualified __type; };
+
+ template<typename _Unqualified>
+ struct __cv_selector<_Unqualified, true, true>
+ { typedef const volatile _Unqualified __type; };
+
+ template<typename _Qualified, typename _Unqualified,
+ bool _IsConst = is_const<_Qualified>::value,
+ bool _IsVol = is_volatile<_Qualified>::value>
+ class __match_cv_qualifiers
+ {
+ typedef __cv_selector<_Unqualified, _IsConst, _IsVol> __match;
+
+ public:
+ typedef typename __match::__type __type;
+ };
+
+ // Utility for finding the unsigned versions of signed integral types.
+ template<typename _Tp>
+ struct __make_unsigned
+ { typedef _Tp __type; };
+
+ template<>
+ struct __make_unsigned<char>
+ { typedef unsigned char __type; };
+
+ template<>
+ struct __make_unsigned<signed char>
+ { typedef unsigned char __type; };
+
+ template<>
+ struct __make_unsigned<short>
+ { typedef unsigned short __type; };
+
+ template<>
+ struct __make_unsigned<int>
+ { typedef unsigned int __type; };
+
+ template<>
+ struct __make_unsigned<long>
+ { typedef unsigned long __type; };
+
+ template<>
+ struct __make_unsigned<long long>
+ { typedef unsigned long long __type; };
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ // Select between integral and enum: not possible to be both.
+ template<typename _Tp,
+ bool _IsInt = is_integral<_Tp>::value,
+ bool _IsEnum = is_enum<_Tp>::value>
+ class __make_unsigned_selector;
+
+ template<typename _Tp>
+ class __make_unsigned_selector<_Tp, true, false>
+ {
+ using __unsigned_type
+ = typename __make_unsigned<__remove_cv_t<_Tp>>::__type;
+
+ public:
+ using __type
+ = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type;
+ };
+
+ class __make_unsigned_selector_base
+ {
+ protected:
+ template<typename...> struct _List { };
+
+ template<typename _Tp, typename... _Up>
+ struct _List<_Tp, _Up...> : _List<_Up...>
+ { static constexpr size_t __size = sizeof(_Tp); };
+
+ template<size_t _Sz, typename _Tp, bool = (_Sz <= _Tp::__size)>
+ struct __select;
+
+ template<size_t _Sz, typename _Uint, typename... _UInts>
+ struct __select<_Sz, _List<_Uint, _UInts...>, true>
+ { using __type = _Uint; };
+
+ template<size_t _Sz, typename _Uint, typename... _UInts>
+ struct __select<_Sz, _List<_Uint, _UInts...>, false>
+ : __select<_Sz, _List<_UInts...>>
+ { };
+ };
+
+ // Choose unsigned integer type with the smallest rank and same size as _Tp
+ template<typename _Tp>
+ class __make_unsigned_selector<_Tp, false, true>
+ : __make_unsigned_selector_base
+ {
+ // With -fshort-enums, an enum may be as small as a char.
+ using _UInts = _List<unsigned char, unsigned short, unsigned int,
+ unsigned long, unsigned long long>;
+
+ using __unsigned_type = typename __select<sizeof(_Tp), _UInts>::__type;
+
+ public:
+ using __type
+ = typename __match_cv_qualifiers<_Tp, __unsigned_type>::__type;
+ };
+
+ // wchar_t, char8_t, char16_t and char32_t are integral types but are
+ // neither signed integer types nor unsigned integer types, so must be
+ // transformed to the unsigned integer type with the smallest rank.
+ // Use the partial specialization for enumeration types to do that.
+
+ template<>
+ struct __make_unsigned<wchar_t>
+ {
+ using __type
+ = typename __make_unsigned_selector<wchar_t, false, true>::__type;
+ };
+
+
+
+ template<>
+ struct __make_unsigned<char16_t>
+ {
+ using __type
+ = typename __make_unsigned_selector<char16_t, false, true>::__type;
+ };
+
+ template<>
+ struct __make_unsigned<char32_t>
+ {
+ using __type
+ = typename __make_unsigned_selector<char32_t, false, true>::__type;
+ };
+
+ // Given an integral/enum type, return the corresponding unsigned
+ // integer type.
+ // Primary template.
+ /// make_unsigned
+ template<typename _Tp>
+ struct make_unsigned
+ { typedef typename __make_unsigned_selector<_Tp>::__type type; };
+
+ // Integral, but don't define.
+ template<>
+ struct make_unsigned<bool>;
+
+
+ // Utility for finding the signed versions of unsigned integral types.
+ template<typename _Tp>
+ struct __make_signed
+ { typedef _Tp __type; };
+
+ template<>
+ struct __make_signed<char>
+ { typedef signed char __type; };
+
+ template<>
+ struct __make_signed<unsigned char>
+ { typedef signed char __type; };
+
+ template<>
+ struct __make_signed<unsigned short>
+ { typedef signed short __type; };
+
+ template<>
+ struct __make_signed<unsigned int>
+ { typedef signed int __type; };
+
+ template<>
+ struct __make_signed<unsigned long>
+ { typedef signed long __type; };
+
+ template<>
+ struct __make_signed<unsigned long long>
+ { typedef signed long long __type; };
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ // Select between integral and enum: not possible to be both.
+ template<typename _Tp,
+ bool _IsInt = is_integral<_Tp>::value,
+ bool _IsEnum = is_enum<_Tp>::value>
+ class __make_signed_selector;
+
+ template<typename _Tp>
+ class __make_signed_selector<_Tp, true, false>
+ {
+ using __signed_type
+ = typename __make_signed<__remove_cv_t<_Tp>>::__type;
+
+ public:
+ using __type
+ = typename __match_cv_qualifiers<_Tp, __signed_type>::__type;
+ };
+
+ // Choose signed integer type with the smallest rank and same size as _Tp
+ template<typename _Tp>
+ class __make_signed_selector<_Tp, false, true>
+ {
+ typedef typename __make_unsigned_selector<_Tp>::__type __unsigned_type;
+
+ public:
+ typedef typename __make_signed_selector<__unsigned_type>::__type __type;
+ };
+
+ // wchar_t, char16_t and char32_t are integral types but are neither
+ // signed integer types nor unsigned integer types, so must be
+ // transformed to the signed integer type with the smallest rank.
+ // Use the partial specialization for enumeration types to do that.
+
+ template<>
+ struct __make_signed<wchar_t>
+ {
+ using __type
+ = typename __make_signed_selector<wchar_t, false, true>::__type;
+ };
+
+
+
+ template<>
+ struct __make_signed<char16_t>
+ {
+ using __type
+ = typename __make_signed_selector<char16_t, false, true>::__type;
+ };
+
+ template<>
+ struct __make_signed<char32_t>
+ {
+ using __type
+ = typename __make_signed_selector<char32_t, false, true>::__type;
+ };
+
+ // Given an integral/enum type, return the corresponding signed
+ // integer type.
+ // Primary template.
+ /// make_signed
+ template<typename _Tp>
+ struct make_signed
+ { typedef typename __make_signed_selector<_Tp>::__type type; };
+
+ // Integral, but don't define.
+ template<>
+ struct make_signed<bool>;
+
+
+ /// Alias template for make_signed
+ template<typename _Tp>
+ using make_signed_t = typename make_signed<_Tp>::type;
+
+ /// Alias template for make_unsigned
+ template<typename _Tp>
+ using make_unsigned_t = typename make_unsigned<_Tp>::type;
+
+
+ // Array modifications.
+
+ /// remove_extent
+ template<typename _Tp>
+ struct remove_extent
+ { typedef _Tp type; };
+
+ template<typename _Tp, std::size_t _Size>
+ struct remove_extent<_Tp[_Size]>
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct remove_extent<_Tp[]>
+ { typedef _Tp type; };
+
+ /// remove_all_extents
+ template<typename _Tp>
+ struct remove_all_extents
+ { typedef _Tp type; };
+
+ template<typename _Tp, std::size_t _Size>
+ struct remove_all_extents<_Tp[_Size]>
+ { typedef typename remove_all_extents<_Tp>::type type; };
+
+ template<typename _Tp>
+ struct remove_all_extents<_Tp[]>
+ { typedef typename remove_all_extents<_Tp>::type type; };
+
+
+ /// Alias template for remove_extent
+ template<typename _Tp>
+ using remove_extent_t = typename remove_extent<_Tp>::type;
+
+ /// Alias template for remove_all_extents
+ template<typename _Tp>
+ using remove_all_extents_t = typename remove_all_extents<_Tp>::type;
+
+
+ // Pointer modifications.
+
+ template<typename _Tp, typename>
+ struct __remove_pointer_helper
+ { typedef _Tp type; };
+
+ template<typename _Tp, typename _Up>
+ struct __remove_pointer_helper<_Tp, _Up*>
+ { typedef _Up type; };
+
+ /// remove_pointer
+ template<typename _Tp>
+ struct remove_pointer
+ : public __remove_pointer_helper<_Tp, __remove_cv_t<_Tp>>
+ { };
+
+ /// add_pointer
+ template<typename _Tp, bool = __or_<__is_referenceable<_Tp>,
+ is_void<_Tp>>::value>
+ struct __add_pointer_helper
+ { typedef _Tp type; };
+
+ template<typename _Tp>
+ struct __add_pointer_helper<_Tp, true>
+ { typedef typename remove_reference<_Tp>::type* type; };
+
+ template<typename _Tp>
+ struct add_pointer
+ : public __add_pointer_helper<_Tp>
+ { };
+
+
+ /// Alias template for remove_pointer
+ template<typename _Tp>
+ using remove_pointer_t = typename remove_pointer<_Tp>::type;
+
+ /// Alias template for add_pointer
+ template<typename _Tp>
+ using add_pointer_t = typename add_pointer<_Tp>::type;
+
+
+ template<std::size_t _Len>
+ struct __aligned_storage_msa
+ {
+ union __type
+ {
+ unsigned char __data[_Len];
+ struct __attribute__((__aligned__)) { } __align;
+ };
+ };
+
+ /**
+ * @brief Alignment type.
+ *
+ * The value of _Align is a default-alignment which shall be the
+ * most stringent alignment requirement for any C++ object type
+ * whose size is no greater than _Len (3.9). The member typedef
+ * type shall be a POD type suitable for use as uninitialized
+ * storage for any object whose size is at most _Len and whose
+ * alignment is a divisor of _Align.
+ */
+ template<std::size_t _Len, std::size_t _Align =
+ __alignof__(typename __aligned_storage_msa<_Len>::__type)>
+ struct aligned_storage
+ {
+ union type
+ {
+ unsigned char __data[_Len];
+ struct __attribute__((__aligned__((_Align)))) { } __align;
+ };
+ };
+
+ template <typename... _Types>
+ struct __strictest_alignment
+ {
+ static const size_t _S_alignment = 0;
+ static const size_t _S_size = 0;
+ };
+
+ template <typename _Tp, typename... _Types>
+ struct __strictest_alignment<_Tp, _Types...>
+ {
+ static const size_t _S_alignment =
+ alignof(_Tp) > __strictest_alignment<_Types...>::_S_alignment
+ ? alignof(_Tp) : __strictest_alignment<_Types...>::_S_alignment;
+ static const size_t _S_size =
+ sizeof(_Tp) > __strictest_alignment<_Types...>::_S_size
+ ? sizeof(_Tp) : __strictest_alignment<_Types...>::_S_size;
+ };
+
+ /**
+ * @brief Provide aligned storage for types.
+ *
+ * [meta.trans.other]
+ *
+ * Provides aligned storage for any of the provided types of at
+ * least size _Len.
+ *
+ * @see aligned_storage
+ */
+ template <size_t _Len, typename... _Types>
+ struct aligned_union
+ {
+ private:
+ static_assert(sizeof...(_Types) != 0, "At least one type is required");
+
+ using __strictest = __strictest_alignment<_Types...>;
+ static const size_t _S_len = _Len > __strictest::_S_size
+ ? _Len : __strictest::_S_size;
+ public:
+ /// The value of the strictest alignment of _Types.
+ static const size_t alignment_value = __strictest::_S_alignment;
+ /// The storage.
+ typedef typename aligned_storage<_S_len, alignment_value>::type type;
+ };
+
+ template <size_t _Len, typename... _Types>
+ const size_t aligned_union<_Len, _Types...>::alignment_value;
+
+ // Decay trait for arrays and functions, used for perfect forwarding
+ // in make_pair, make_tuple, etc.
+ template<typename _Up,
+ bool _IsArray = is_array<_Up>::value,
+ bool _IsFunction = is_function<_Up>::value>
+ struct __decay_selector;
+
+ // NB: DR 705.
+ template<typename _Up>
+ struct __decay_selector<_Up, false, false>
+ { typedef __remove_cv_t<_Up> __type; };
+
+ template<typename _Up>
+ struct __decay_selector<_Up, true, false>
+ { typedef typename remove_extent<_Up>::type* __type; };
+
+ template<typename _Up>
+ struct __decay_selector<_Up, false, true>
+ { typedef typename add_pointer<_Up>::type __type; };
+
+ /// decay
+ template<typename _Tp>
+ class decay
+ {
+ typedef typename remove_reference<_Tp>::type __remove_type;
+
+ public:
+ typedef typename __decay_selector<__remove_type>::__type type;
+ };
+
+ // __decay_t (std::decay_t for C++11).
+ template<typename _Tp>
+ using __decay_t = typename decay<_Tp>::type;
+
+ template<typename _Tp>
+ class reference_wrapper;
+
+ // Helper which adds a reference to a type when given a reference_wrapper
+ template<typename _Tp>
+ struct __strip_reference_wrapper
+ {
+ typedef _Tp __type;
+ };
+
+ template<typename _Tp>
+ struct __strip_reference_wrapper<reference_wrapper<_Tp> >
+ {
+ typedef _Tp& __type;
+ };
+
+ template<typename _Tp>
+ using __decay_and_strip = __strip_reference_wrapper<__decay_t<_Tp>>;
+
+
+ // Primary template.
+ /// Define a member typedef @c type only if a boolean constant is true.
+ template<bool, typename _Tp = void>
+ struct enable_if
+ { };
+
+ // Partial specialization for true.
+ template<typename _Tp>
+ struct enable_if<true, _Tp>
+ { typedef _Tp type; };
+
+ // __enable_if_t (std::enable_if_t for C++11)
+ template<bool _Cond, typename _Tp = void>
+ using __enable_if_t = typename enable_if<_Cond, _Tp>::type;
+
+ template<typename... _Cond>
+ using _Require = __enable_if_t<__and_<_Cond...>::value>;
+
+ // Primary template.
+ /// Define a member typedef @c type to one of two argument types.
+ template<bool _Cond, typename _Iftrue, typename _Iffalse>
+ struct conditional
+ { typedef _Iftrue type; };
+
+ // Partial specialization for false.
+ template<typename _Iftrue, typename _Iffalse>
+ struct conditional<false, _Iftrue, _Iffalse>
+ { typedef _Iffalse type; };
+
+ // __remove_cvref_t (std::remove_cvref_t for C++11).
+ template<typename _Tp>
+ using __remove_cvref_t
+ = typename remove_cv<typename remove_reference<_Tp>::type>::type;
+
+ /// common_type
+ template<typename... _Tp>
+ struct common_type;
+
+ // Sfinae-friendly common_type implementation:
+
+ struct __do_common_type_impl
+ {
+ template<typename _Tp, typename _Up>
+ using __cond_t
+ = decltype(true ? std::declval<_Tp>() : std::declval<_Up>());
+
+ // if decay_t<decltype(false ? declval<D1>() : declval<D2>())>
+ // denotes a valid type, let C denote that type.
+ template<typename _Tp, typename _Up>
+ static __success_type<__decay_t<__cond_t<_Tp, _Up>>>
+ _S_test(int);
+
+
+
+
+
+
+
+
+
+ template<typename, typename>
+ static __failure_type
+ _S_test_2(...);
+
+ template<typename _Tp, typename _Up>
+ static decltype(_S_test_2<_Tp, _Up>(0))
+ _S_test(...);
+ };
+
+ // If sizeof...(T) is zero, there shall be no member type.
+ template<>
+ struct common_type<>
+ { };
+
+ // If sizeof...(T) is one, the same type, if any, as common_type_t<T0, T0>.
+ template<typename _Tp0>
+ struct common_type<_Tp0>
+ : public common_type<_Tp0, _Tp0>
+ { };
+
+ // If sizeof...(T) is two, ...
+ template<typename _Tp1, typename _Tp2,
+ typename _Dp1 = __decay_t<_Tp1>, typename _Dp2 = __decay_t<_Tp2>>
+ struct __common_type_impl
+ {
+ // If is_same_v<T1, D1> is false or is_same_v<T2, D2> is false,
+ // let C denote the same type, if any, as common_type_t<D1, D2>.
+ using type = common_type<_Dp1, _Dp2>;
+ };
+
+ template<typename _Tp1, typename _Tp2>
+ struct __common_type_impl<_Tp1, _Tp2, _Tp1, _Tp2>
+ : private __do_common_type_impl
+ {
+ // Otherwise, if decay_t<decltype(false ? declval<D1>() : declval<D2>())>
+ // denotes a valid type, let C denote that type.
+ using type = decltype(_S_test<_Tp1, _Tp2>(0));
+ };
+
+ // If sizeof...(T) is two, ...
+ template<typename _Tp1, typename _Tp2>
+ struct common_type<_Tp1, _Tp2>
+ : public __common_type_impl<_Tp1, _Tp2>::type
+ { };
+
+ template<typename...>
+ struct __common_type_pack
+ { };
+
+ template<typename, typename, typename = void>
+ struct __common_type_fold;
+
+ // If sizeof...(T) is greater than two, ...
+ template<typename _Tp1, typename _Tp2, typename... _Rp>
+ struct common_type<_Tp1, _Tp2, _Rp...>
+ : public __common_type_fold<common_type<_Tp1, _Tp2>,
+ __common_type_pack<_Rp...>>
+ { };
+
+ // Let C denote the same type, if any, as common_type_t<T1, T2>.
+ // If there is such a type C, type shall denote the same type, if any,
+ // as common_type_t<C, R...>.
+ template<typename _CTp, typename... _Rp>
+ struct __common_type_fold<_CTp, __common_type_pack<_Rp...>,
+ __void_t<typename _CTp::type>>
+ : public common_type<typename _CTp::type, _Rp...>
+ { };
+
+ // Otherwise, there shall be no member type.
+ template<typename _CTp, typename _Rp>
+ struct __common_type_fold<_CTp, _Rp, void>
+ { };
+
+ template<typename _Tp, bool = is_enum<_Tp>::value>
+ struct __underlying_type_impl
+ {
+ using type = __underlying_type(_Tp);
+ };
+
+ template<typename _Tp>
+ struct __underlying_type_impl<_Tp, false>
+ { };
+
+ /// The underlying type of an enum.
+ template<typename _Tp>
+ struct underlying_type
+ : public __underlying_type_impl<_Tp>
+ { };
+
+ template<typename _Tp>
+ struct __declval_protector
+ {
+ static const bool __stop = false;
+ };
+
+ template<typename _Tp>
+ auto declval() noexcept -> decltype(__declval<_Tp>(0))
+ {
+ static_assert(__declval_protector<_Tp>::__stop,
+ "declval() must not be used!");
+ return __declval<_Tp>(0);
+ }
+
+ /// result_of
+ template<typename _Signature>
+ struct result_of;
+
+ // Sfinae-friendly result_of implementation:
+
+#define __cpp_lib_result_of_sfinae 201210
+
+ struct __invoke_memfun_ref { };
+ struct __invoke_memfun_deref { };
+ struct __invoke_memobj_ref { };
+ struct __invoke_memobj_deref { };
+ struct __invoke_other { };
+
+ // Associate a tag type with a specialization of __success_type.
+ template<typename _Tp, typename _Tag>
+ struct __result_of_success : __success_type<_Tp>
+ { using __invoke_type = _Tag; };
+
+ // [func.require] paragraph 1 bullet 1:
+ struct __result_of_memfun_ref_impl
+ {
+ template<typename _Fp, typename _Tp1, typename... _Args>
+ static __result_of_success<decltype(
+ (std::declval<_Tp1>().*std::declval<_Fp>())(std::declval<_Args>()...)
+ ), __invoke_memfun_ref> _S_test(int);
+
+ template<typename...>
+ static __failure_type _S_test(...);
+ };
+
+ template<typename _MemPtr, typename _Arg, typename... _Args>
+ struct __result_of_memfun_ref
+ : private __result_of_memfun_ref_impl
+ {
+ typedef decltype(_S_test<_MemPtr, _Arg, _Args...>(0)) type;
+ };
+
+ // [func.require] paragraph 1 bullet 2:
+ struct __result_of_memfun_deref_impl
+ {
+ template<typename _Fp, typename _Tp1, typename... _Args>
+ static __result_of_success<decltype(
+ ((*std::declval<_Tp1>()).*std::declval<_Fp>())(std::declval<_Args>()...)
+ ), __invoke_memfun_deref> _S_test(int);
+
+ template<typename...>
+ static __failure_type _S_test(...);
+ };
+
+ template<typename _MemPtr, typename _Arg, typename... _Args>
+ struct __result_of_memfun_deref
+ : private __result_of_memfun_deref_impl
+ {
+ typedef decltype(_S_test<_MemPtr, _Arg, _Args...>(0)) type;
+ };
+
+ // [func.require] paragraph 1 bullet 3:
+ struct __result_of_memobj_ref_impl
+ {
+ template<typename _Fp, typename _Tp1>
+ static __result_of_success<decltype(
+ std::declval<_Tp1>().*std::declval<_Fp>()
+ ), __invoke_memobj_ref> _S_test(int);
+
+ template<typename, typename>
+ static __failure_type _S_test(...);
+ };
+
+ template<typename _MemPtr, typename _Arg>
+ struct __result_of_memobj_ref
+ : private __result_of_memobj_ref_impl
+ {
+ typedef decltype(_S_test<_MemPtr, _Arg>(0)) type;
+ };
+
+ // [func.require] paragraph 1 bullet 4:
+ struct __result_of_memobj_deref_impl
+ {
+ template<typename _Fp, typename _Tp1>
+ static __result_of_success<decltype(
+ (*std::declval<_Tp1>()).*std::declval<_Fp>()
+ ), __invoke_memobj_deref> _S_test(int);
+
+ template<typename, typename>
+ static __failure_type _S_test(...);
+ };
+
+ template<typename _MemPtr, typename _Arg>
+ struct __result_of_memobj_deref
+ : private __result_of_memobj_deref_impl
+ {
+ typedef decltype(_S_test<_MemPtr, _Arg>(0)) type;
+ };
+
+ template<typename _MemPtr, typename _Arg>
+ struct __result_of_memobj;
+
+ template<typename _Res, typename _Class, typename _Arg>
+ struct __result_of_memobj<_Res _Class::*, _Arg>
+ {
+ typedef __remove_cvref_t<_Arg> _Argval;
+ typedef _Res _Class::* _MemPtr;
+ typedef typename conditional<__or_<is_same<_Argval, _Class>,
+ is_base_of<_Class, _Argval>>::value,
+ __result_of_memobj_ref<_MemPtr, _Arg>,
+ __result_of_memobj_deref<_MemPtr, _Arg>
+ >::type::type type;
+ };
+
+ template<typename _MemPtr, typename _Arg, typename... _Args>
+ struct __result_of_memfun;
+
+ template<typename _Res, typename _Class, typename _Arg, typename... _Args>
+ struct __result_of_memfun<_Res _Class::*, _Arg, _Args...>
+ {
+ typedef typename remove_reference<_Arg>::type _Argval;
+ typedef _Res _Class::* _MemPtr;
+ typedef typename conditional<is_base_of<_Class, _Argval>::value,
+ __result_of_memfun_ref<_MemPtr, _Arg, _Args...>,
+ __result_of_memfun_deref<_MemPtr, _Arg, _Args...>
+ >::type::type type;
+ };
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2219. INVOKE-ing a pointer to member with a reference_wrapper
+ // as the object expression
+
+ // Used by result_of, invoke etc. to unwrap a reference_wrapper.
+ template<typename _Tp, typename _Up = __remove_cvref_t<_Tp>>
+ struct __inv_unwrap
+ {
+ using type = _Tp;
+ };
+
+ template<typename _Tp, typename _Up>
+ struct __inv_unwrap<_Tp, reference_wrapper<_Up>>
+ {
+ using type = _Up&;
+ };
+
+ template<bool, bool, typename _Functor, typename... _ArgTypes>
+ struct __result_of_impl
+ {
+ typedef __failure_type type;
+ };
+
+ template<typename _MemPtr, typename _Arg>
+ struct __result_of_impl<true, false, _MemPtr, _Arg>
+ : public __result_of_memobj<__decay_t<_MemPtr>,
+ typename __inv_unwrap<_Arg>::type>
+ { };
+
+ template<typename _MemPtr, typename _Arg, typename... _Args>
+ struct __result_of_impl<false, true, _MemPtr, _Arg, _Args...>
+ : public __result_of_memfun<__decay_t<_MemPtr>,
+ typename __inv_unwrap<_Arg>::type, _Args...>
+ { };
+
+ // [func.require] paragraph 1 bullet 5:
+ struct __result_of_other_impl
+ {
+ template<typename _Fn, typename... _Args>
+ static __result_of_success<decltype(
+ std::declval<_Fn>()(std::declval<_Args>()...)
+ ), __invoke_other> _S_test(int);
+
+ template<typename...>
+ static __failure_type _S_test(...);
+ };
+
+ template<typename _Functor, typename... _ArgTypes>
+ struct __result_of_impl<false, false, _Functor, _ArgTypes...>
+ : private __result_of_other_impl
+ {
+ typedef decltype(_S_test<_Functor, _ArgTypes...>(0)) type;
+ };
+
+ // __invoke_result (std::invoke_result for C++11)
+ template<typename _Functor, typename... _ArgTypes>
+ struct __invoke_result
+ : public __result_of_impl<
+ is_member_object_pointer<
+ typename remove_reference<_Functor>::type
+ >::value,
+ is_member_function_pointer<
+ typename remove_reference<_Functor>::type
+ >::value,
+ _Functor, _ArgTypes...
+ >::type
+ { };
+
+ template<typename _Functor, typename... _ArgTypes>
+ struct result_of<_Functor(_ArgTypes...)>
+ : public __invoke_result<_Functor, _ArgTypes...>
+ { };
+
+
+ /// Alias template for aligned_storage
+ template<size_t _Len, size_t _Align =
+ __alignof__(typename __aligned_storage_msa<_Len>::__type)>
+ using aligned_storage_t = typename aligned_storage<_Len, _Align>::type;
+
+ template <size_t _Len, typename... _Types>
+ using aligned_union_t = typename aligned_union<_Len, _Types...>::type;
+
+ /// Alias template for decay
+ template<typename _Tp>
+ using decay_t = typename decay<_Tp>::type;
+
+ /// Alias template for enable_if
+ template<bool _Cond, typename _Tp = void>
+ using enable_if_t = typename enable_if<_Cond, _Tp>::type;
+
+ /// Alias template for conditional
+ template<bool _Cond, typename _Iftrue, typename _Iffalse>
+ using conditional_t = typename conditional<_Cond, _Iftrue, _Iffalse>::type;
+
+ /// Alias template for common_type
+ template<typename... _Tp>
+ using common_type_t = typename common_type<_Tp...>::type;
+
+ /// Alias template for underlying_type
+ template<typename _Tp>
+ using underlying_type_t = typename underlying_type<_Tp>::type;
+
+ /// Alias template for result_of
+ template<typename _Tp>
+ using result_of_t = typename result_of<_Tp>::type;
+
+
+
+#define __cpp_lib_void_t 201411
+ /// A metafunction that always yields void, used for detecting valid types.
+ template<typename...> using void_t = void;
+
+
+ /// Implementation of the detection idiom (negative case).
+ template<typename _Default, typename _AlwaysVoid,
+ template<typename...> class _Op, typename... _Args>
+ struct __detector
+ {
+ using value_t = false_type;
+ using type = _Default;
+ };
+
+ /// Implementation of the detection idiom (positive case).
+ template<typename _Default, template<typename...> class _Op,
+ typename... _Args>
+ struct __detector<_Default, __void_t<_Op<_Args...>>, _Op, _Args...>
+ {
+ using value_t = true_type;
+ using type = _Op<_Args...>;
+ };
+
+ // Detect whether _Op<_Args...> is a valid type, use _Default if not.
+ template<typename _Default, template<typename...> class _Op,
+ typename... _Args>
+ using __detected_or = __detector<_Default, void, _Op, _Args...>;
+
+ // _Op<_Args...> if that is a valid type, otherwise _Default.
+ template<typename _Default, template<typename...> class _Op,
+ typename... _Args>
+ using __detected_or_t
+ = typename __detected_or<_Default, _Op, _Args...>::type;
+
+ /// @} group metaprogramming
+
+ /**
+ * Use SFINAE to determine if the type _Tp has a publicly-accessible
+ * member type _NTYPE.
+ */
+#define _GLIBCXX_HAS_NESTED_TYPE(_NTYPE) template<typename _Tp, typename = __void_t<>> struct __has_ ##_NTYPE : false_type { }; template<typename _Tp> struct __has_ ##_NTYPE<_Tp, __void_t<typename _Tp::_NTYPE>> : true_type { };
+
+ template <typename _Tp>
+ struct __is_swappable;
+
+ template <typename _Tp>
+ struct __is_nothrow_swappable;
+
+ template<typename... _Elements>
+ class tuple;
+
+ template<typename>
+ struct __is_tuple_like_impl : false_type
+ { };
+
+ template<typename... _Tps>
+ struct __is_tuple_like_impl<tuple<_Tps...>> : true_type
+ { };
+
+ // Internal type trait that allows us to sfinae-protect tuple_cat.
+ template<typename _Tp>
+ struct __is_tuple_like
+ : public __is_tuple_like_impl<__remove_cvref_t<_Tp>>::type
+ { };
+
+ template<typename _Tp>
+ _GLIBCXX20_CONSTEXPR
+ inline
+ _Require<__not_<__is_tuple_like<_Tp>>,
+ is_move_constructible<_Tp>,
+ is_move_assignable<_Tp>>
+ swap(_Tp&, _Tp&)
+ noexcept(__and_<is_nothrow_move_constructible<_Tp>,
+ is_nothrow_move_assignable<_Tp>>::value);
+
+ template<typename _Tp, size_t _Nm>
+ _GLIBCXX20_CONSTEXPR
+ inline
+ __enable_if_t<__is_swappable<_Tp>::value>
+ swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
+ noexcept(__is_nothrow_swappable<_Tp>::value);
+
+ namespace __swappable_details {
+ using std::swap;
+
+ struct __do_is_swappable_impl
+ {
+ template<typename _Tp, typename
+ = decltype(swap(std::declval<_Tp&>(), std::declval<_Tp&>()))>
+ static true_type __test(int);
+
+ template<typename>
+ static false_type __test(...);
+ };
+
+ struct __do_is_nothrow_swappable_impl
+ {
+ template<typename _Tp>
+ static __bool_constant<
+ noexcept(swap(std::declval<_Tp&>(), std::declval<_Tp&>()))
+ > __test(int);
+
+ template<typename>
+ static false_type __test(...);
+ };
+
+ } // namespace __swappable_details
+
+ template<typename _Tp>
+ struct __is_swappable_impl
+ : public __swappable_details::__do_is_swappable_impl
+ {
+ typedef decltype(__test<_Tp>(0)) type;
+ };
+
+ template<typename _Tp>
+ struct __is_nothrow_swappable_impl
+ : public __swappable_details::__do_is_nothrow_swappable_impl
+ {
+ typedef decltype(__test<_Tp>(0)) type;
+ };
+
+ template<typename _Tp>
+ struct __is_swappable
+ : public __is_swappable_impl<_Tp>::type
+ { };
+
+ template<typename _Tp>
+ struct __is_nothrow_swappable
+ : public __is_nothrow_swappable_impl<_Tp>::type
+ { };
+
+
+#define __cpp_lib_is_swappable 201603
+ /// Metafunctions used for detecting swappable types: p0185r1
+
+ /// is_swappable
+ template<typename _Tp>
+ struct is_swappable
+ : public __is_swappable_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_nothrow_swappable
+ template<typename _Tp>
+ struct is_nothrow_swappable
+ : public __is_nothrow_swappable_impl<_Tp>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+
+ /// is_swappable_v
+ template<typename _Tp>
+ _GLIBCXX17_INLINE constexpr bool is_swappable_v =
+ is_swappable<_Tp>::value;
+
+ /// is_nothrow_swappable_v
+ template<typename _Tp>
+ _GLIBCXX17_INLINE constexpr bool is_nothrow_swappable_v =
+ is_nothrow_swappable<_Tp>::value;
+
+
+ namespace __swappable_with_details {
+ using std::swap;
+
+ struct __do_is_swappable_with_impl
+ {
+ template<typename _Tp, typename _Up, typename
+ = decltype(swap(std::declval<_Tp>(), std::declval<_Up>())),
+ typename
+ = decltype(swap(std::declval<_Up>(), std::declval<_Tp>()))>
+ static true_type __test(int);
+
+ template<typename, typename>
+ static false_type __test(...);
+ };
+
+ struct __do_is_nothrow_swappable_with_impl
+ {
+ template<typename _Tp, typename _Up>
+ static __bool_constant<
+ noexcept(swap(std::declval<_Tp>(), std::declval<_Up>()))
+ &&
+ noexcept(swap(std::declval<_Up>(), std::declval<_Tp>()))
+ > __test(int);
+
+ template<typename, typename>
+ static false_type __test(...);
+ };
+
+ } // namespace __swappable_with_details
+
+ template<typename _Tp, typename _Up>
+ struct __is_swappable_with_impl
+ : public __swappable_with_details::__do_is_swappable_with_impl
+ {
+ typedef decltype(__test<_Tp, _Up>(0)) type;
+ };
+
+ // Optimization for the homogenous lvalue case, not required:
+ template<typename _Tp>
+ struct __is_swappable_with_impl<_Tp&, _Tp&>
+ : public __swappable_details::__do_is_swappable_impl
+ {
+ typedef decltype(__test<_Tp&>(0)) type;
+ };
+
+ template<typename _Tp, typename _Up>
+ struct __is_nothrow_swappable_with_impl
+ : public __swappable_with_details::__do_is_nothrow_swappable_with_impl
+ {
+ typedef decltype(__test<_Tp, _Up>(0)) type;
+ };
+
+ // Optimization for the homogenous lvalue case, not required:
+ template<typename _Tp>
+ struct __is_nothrow_swappable_with_impl<_Tp&, _Tp&>
+ : public __swappable_details::__do_is_nothrow_swappable_impl
+ {
+ typedef decltype(__test<_Tp&>(0)) type;
+ };
+
+ /// is_swappable_with
+ template<typename _Tp, typename _Up>
+ struct is_swappable_with
+ : public __is_swappable_with_impl<_Tp, _Up>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "first template argument must be a complete class or an unbounded array");
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Up>{}),
+ "second template argument must be a complete class or an unbounded array");
+ };
+
+ /// is_nothrow_swappable_with
+ template<typename _Tp, typename _Up>
+ struct is_nothrow_swappable_with
+ : public __is_nothrow_swappable_with_impl<_Tp, _Up>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "first template argument must be a complete class or an unbounded array");
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Up>{}),
+ "second template argument must be a complete class or an unbounded array");
+ };
+
+
+ /// is_swappable_with_v
+ template<typename _Tp, typename _Up>
+ _GLIBCXX17_INLINE constexpr bool is_swappable_with_v =
+ is_swappable_with<_Tp, _Up>::value;
+
+ /// is_nothrow_swappable_with_v
+ template<typename _Tp, typename _Up>
+ _GLIBCXX17_INLINE constexpr bool is_nothrow_swappable_with_v =
+ is_nothrow_swappable_with<_Tp, _Up>::value;
+
+
+
+
+ // __is_invocable (std::is_invocable for C++11)
+
+ // The primary template is used for invalid INVOKE expressions.
+ template<typename _Result, typename _Ret,
+ bool = is_void<_Ret>::value, typename = void>
+ struct __is_invocable_impl : false_type { };
+
+ // Used for valid INVOKE and INVOKE<void> expressions.
+ template<typename _Result, typename _Ret>
+ struct __is_invocable_impl<_Result, _Ret,
+ /* is_void<_Ret> = */ true,
+ __void_t<typename _Result::type>>
+ : true_type
+ { };
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
+ // Used for INVOKE<R> expressions to check the implicit conversion to R.
+ template<typename _Result, typename _Ret>
+ struct __is_invocable_impl<_Result, _Ret,
+ /* is_void<_Ret> = */ false,
+ __void_t<typename _Result::type>>
+ {
+ private:
+ // The type of the INVOKE expression.
+ // Unlike declval, this doesn't add_rvalue_reference.
+ static typename _Result::type _S_get();
+
+ template<typename _Tp>
+ static void _S_conv(_Tp);
+
+ // This overload is viable if INVOKE(f, args...) can convert to _Tp.
+ template<typename _Tp, typename = decltype(_S_conv<_Tp>(_S_get()))>
+ static true_type
+ _S_test(int);
+
+ template<typename _Tp>
+ static false_type
+ _S_test(...);
+
+ public:
+ using type = decltype(_S_test<_Ret>(1));
+ };
+#pragma GCC diagnostic pop
+
+ template<typename _Fn, typename... _ArgTypes>
+ struct __is_invocable
+ : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>::type
+ { };
+
+ template<typename _Fn, typename _Tp, typename... _Args>
+ constexpr bool __call_is_nt(__invoke_memfun_ref)
+ {
+ using _Up = typename __inv_unwrap<_Tp>::type;
+ return noexcept((std::declval<_Up>().*std::declval<_Fn>())(
+ std::declval<_Args>()...));
+ }
+
+ template<typename _Fn, typename _Tp, typename... _Args>
+ constexpr bool __call_is_nt(__invoke_memfun_deref)
+ {
+ return noexcept(((*std::declval<_Tp>()).*std::declval<_Fn>())(
+ std::declval<_Args>()...));
+ }
+
+ template<typename _Fn, typename _Tp>
+ constexpr bool __call_is_nt(__invoke_memobj_ref)
+ {
+ using _Up = typename __inv_unwrap<_Tp>::type;
+ return noexcept(std::declval<_Up>().*std::declval<_Fn>());
+ }
+
+ template<typename _Fn, typename _Tp>
+ constexpr bool __call_is_nt(__invoke_memobj_deref)
+ {
+ return noexcept((*std::declval<_Tp>()).*std::declval<_Fn>());
+ }
+
+ template<typename _Fn, typename... _Args>
+ constexpr bool __call_is_nt(__invoke_other)
+ {
+ return noexcept(std::declval<_Fn>()(std::declval<_Args>()...));
+ }
+
+ template<typename _Result, typename _Fn, typename... _Args>
+ struct __call_is_nothrow
+ : __bool_constant<
+ std::__call_is_nt<_Fn, _Args...>(typename _Result::__invoke_type{})
+ >
+ { };
+
+ template<typename _Fn, typename... _Args>
+ using __call_is_nothrow_
+ = __call_is_nothrow<__invoke_result<_Fn, _Args...>, _Fn, _Args...>;
+
+ // __is_nothrow_invocable (std::is_nothrow_invocable for C++11)
+ template<typename _Fn, typename... _Args>
+ struct __is_nothrow_invocable
+ : __and_<__is_invocable<_Fn, _Args...>,
+ __call_is_nothrow_<_Fn, _Args...>>::type
+ { };
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wctor-dtor-privacy"
+ struct __nonesuchbase {};
+ struct __nonesuch : private __nonesuchbase {
+ ~__nonesuch() = delete;
+ __nonesuch(__nonesuch const&) = delete;
+ void operator=(__nonesuch const&) = delete;
+ };
+#pragma GCC diagnostic pop
+
+
+#define __cpp_lib_is_invocable 201703
+
+ /// std::invoke_result
+ template<typename _Functor, typename... _ArgTypes>
+ struct invoke_result
+ : public __invoke_result<_Functor, _ArgTypes...>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Functor>{}),
+ "_Functor must be a complete class or an unbounded array");
+ static_assert((std::__is_complete_or_unbounded(
+ __type_identity<_ArgTypes>{}) && ...),
+ "each argument type must be a complete class or an unbounded array");
+ };
+
+ /// std::invoke_result_t
+ template<typename _Fn, typename... _Args>
+ using invoke_result_t = typename invoke_result<_Fn, _Args...>::type;
+
+ /// std::is_invocable
+ template<typename _Fn, typename... _ArgTypes>
+ struct is_invocable
+ : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}),
+ "_Fn must be a complete class or an unbounded array");
+ static_assert((std::__is_complete_or_unbounded(
+ __type_identity<_ArgTypes>{}) && ...),
+ "each argument type must be a complete class or an unbounded array");
+ };
+
+ /// std::is_invocable_r
+ template<typename _Ret, typename _Fn, typename... _ArgTypes>
+ struct is_invocable_r
+ : __is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, _Ret>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}),
+ "_Fn must be a complete class or an unbounded array");
+ static_assert((std::__is_complete_or_unbounded(
+ __type_identity<_ArgTypes>{}) && ...),
+ "each argument type must be a complete class or an unbounded array");
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Ret>{}),
+ "_Ret must be a complete class or an unbounded array");
+ };
+
+ /// std::is_nothrow_invocable
+ template<typename _Fn, typename... _ArgTypes>
+ struct is_nothrow_invocable
+ : __and_<__is_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, void>,
+ __call_is_nothrow_<_Fn, _ArgTypes...>>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}),
+ "_Fn must be a complete class or an unbounded array");
+ static_assert((std::__is_complete_or_unbounded(
+ __type_identity<_ArgTypes>{}) && ...),
+ "each argument type must be a complete class or an unbounded array");
+ };
+
+ template<typename _Result, typename _Ret, typename = void>
+ struct __is_nt_invocable_impl : false_type { };
+
+ template<typename _Result, typename _Ret>
+ struct __is_nt_invocable_impl<_Result, _Ret,
+ __void_t<typename _Result::type>>
+ : __or_<is_void<_Ret>,
+ __is_nothrow_convertible<typename _Result::type, _Ret>>
+ { };
+
+ /// std::is_nothrow_invocable_r
+ template<typename _Ret, typename _Fn, typename... _ArgTypes>
+ struct is_nothrow_invocable_r
+ : __and_<__is_nt_invocable_impl<__invoke_result<_Fn, _ArgTypes...>, _Ret>,
+ __call_is_nothrow_<_Fn, _ArgTypes...>>::type
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Fn>{}),
+ "_Fn must be a complete class or an unbounded array");
+ static_assert((std::__is_complete_or_unbounded(
+ __type_identity<_ArgTypes>{}) && ...),
+ "each argument type must be a complete class or an unbounded array");
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Ret>{}),
+ "_Ret must be a complete class or an unbounded array");
+ };
+
+ /// std::is_invocable_v
+ template<typename _Fn, typename... _Args>
+ inline constexpr bool is_invocable_v = is_invocable<_Fn, _Args...>::value;
+
+ /// std::is_nothrow_invocable_v
+ template<typename _Fn, typename... _Args>
+ inline constexpr bool is_nothrow_invocable_v
+ = is_nothrow_invocable<_Fn, _Args...>::value;
+
+ /// std::is_invocable_r_v
+ template<typename _Ret, typename _Fn, typename... _Args>
+ inline constexpr bool is_invocable_r_v
+ = is_invocable_r<_Ret, _Fn, _Args...>::value;
+
+ /// std::is_nothrow_invocable_r_v
+ template<typename _Ret, typename _Fn, typename... _Args>
+ inline constexpr bool is_nothrow_invocable_r_v
+ = is_nothrow_invocable_r<_Ret, _Fn, _Args...>::value;
+
+
+
+#define __cpp_lib_type_trait_variable_templates 201510L
+template <typename _Tp>
+ inline constexpr bool is_void_v = is_void<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_null_pointer_v = is_null_pointer<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_integral_v = is_integral<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_floating_point_v = is_floating_point<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_array_v = is_array<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_pointer_v = is_pointer<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_lvalue_reference_v =
+ is_lvalue_reference<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_rvalue_reference_v =
+ is_rvalue_reference<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_member_object_pointer_v =
+ is_member_object_pointer<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_member_function_pointer_v =
+ is_member_function_pointer<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_enum_v = is_enum<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_union_v = is_union<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_class_v = is_class<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_function_v = is_function<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_reference_v = is_reference<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_arithmetic_v = is_arithmetic<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_object_v = is_object<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_scalar_v = is_scalar<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_compound_v = is_compound<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_member_pointer_v = is_member_pointer<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_const_v = is_const<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_volatile_v = is_volatile<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivial_v = is_trivial<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_copyable_v =
+ is_trivially_copyable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_standard_layout_v = is_standard_layout<_Tp>::value;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+template <typename _Tp>
+ _GLIBCXX20_DEPRECATED("use is_standard_layout_v && is_trivial_v instead")
+ inline constexpr bool is_pod_v = is_pod<_Tp>::value;
+template <typename _Tp>
+ _GLIBCXX17_DEPRECATED
+ inline constexpr bool is_literal_type_v = is_literal_type<_Tp>::value;
+#pragma GCC diagnostic pop
+ template <typename _Tp>
+ inline constexpr bool is_empty_v = is_empty<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_polymorphic_v = is_polymorphic<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_abstract_v = is_abstract<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_final_v = is_final<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_signed_v = is_signed<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_unsigned_v = is_unsigned<_Tp>::value;
+template <typename _Tp, typename... _Args>
+ inline constexpr bool is_constructible_v =
+ is_constructible<_Tp, _Args...>::value;
+template <typename _Tp>
+ inline constexpr bool is_default_constructible_v =
+ is_default_constructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_copy_constructible_v =
+ is_copy_constructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_move_constructible_v =
+ is_move_constructible<_Tp>::value;
+template <typename _Tp, typename _Up>
+ inline constexpr bool is_assignable_v = is_assignable<_Tp, _Up>::value;
+template <typename _Tp>
+ inline constexpr bool is_copy_assignable_v = is_copy_assignable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_move_assignable_v = is_move_assignable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_destructible_v = is_destructible<_Tp>::value;
+template <typename _Tp, typename... _Args>
+ inline constexpr bool is_trivially_constructible_v =
+ is_trivially_constructible<_Tp, _Args...>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_default_constructible_v =
+ is_trivially_default_constructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_copy_constructible_v =
+ is_trivially_copy_constructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_move_constructible_v =
+ is_trivially_move_constructible<_Tp>::value;
+template <typename _Tp, typename _Up>
+ inline constexpr bool is_trivially_assignable_v =
+ is_trivially_assignable<_Tp, _Up>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_copy_assignable_v =
+ is_trivially_copy_assignable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_move_assignable_v =
+ is_trivially_move_assignable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_trivially_destructible_v =
+ is_trivially_destructible<_Tp>::value;
+template <typename _Tp, typename... _Args>
+ inline constexpr bool is_nothrow_constructible_v =
+ is_nothrow_constructible<_Tp, _Args...>::value;
+template <typename _Tp>
+ inline constexpr bool is_nothrow_default_constructible_v =
+ is_nothrow_default_constructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_nothrow_copy_constructible_v =
+ is_nothrow_copy_constructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_nothrow_move_constructible_v =
+ is_nothrow_move_constructible<_Tp>::value;
+template <typename _Tp, typename _Up>
+ inline constexpr bool is_nothrow_assignable_v =
+ is_nothrow_assignable<_Tp, _Up>::value;
+template <typename _Tp>
+ inline constexpr bool is_nothrow_copy_assignable_v =
+ is_nothrow_copy_assignable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_nothrow_move_assignable_v =
+ is_nothrow_move_assignable<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool is_nothrow_destructible_v =
+ is_nothrow_destructible<_Tp>::value;
+template <typename _Tp>
+ inline constexpr bool has_virtual_destructor_v =
+ has_virtual_destructor<_Tp>::value;
+template <typename _Tp>
+ inline constexpr size_t alignment_of_v = alignment_of<_Tp>::value;
+template <typename _Tp>
+ inline constexpr size_t rank_v = rank<_Tp>::value;
+template <typename _Tp, unsigned _Idx = 0>
+ inline constexpr size_t extent_v = extent<_Tp, _Idx>::value;
+
+template <typename _Tp, typename _Up>
+ inline constexpr bool is_same_v = __is_same(_Tp, _Up);
+
+
+
+
+template <typename _Base, typename _Derived>
+ inline constexpr bool is_base_of_v = is_base_of<_Base, _Derived>::value;
+template <typename _From, typename _To>
+ inline constexpr bool is_convertible_v = is_convertible<_From, _To>::value;
+
+
+#define __cpp_lib_has_unique_object_representations 201606
+ /// has_unique_object_representations
+ template<typename _Tp>
+ struct has_unique_object_representations
+ : bool_constant<__has_unique_object_representations(
+ remove_cv_t<remove_all_extents_t<_Tp>>
+ )>
+ {
+ static_assert(std::__is_complete_or_unbounded(__type_identity<_Tp>{}),
+ "template argument must be a complete class or an unbounded array");
+ };
+
+ template<typename _Tp>
+ inline constexpr bool has_unique_object_representations_v
+ = has_unique_object_representations<_Tp>::value;
+
+
+
+#define __cpp_lib_is_aggregate 201703
+ /// is_aggregate
+ template<typename _Tp>
+ struct is_aggregate
+ : bool_constant<__is_aggregate(remove_cv_t<_Tp>)>
+ { };
+
+ /// is_aggregate_v
+ template<typename _Tp>
+ inline constexpr bool is_aggregate_v = is_aggregate<_Tp>::value;
+
+
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @addtogroup utilities
+ * @{
+ */
+
+ /**
+ * @brief Forward an lvalue.
+ * @return The parameter cast to the specified type.
+ *
+ * This function is used to implement "perfect forwarding".
+ */
+ template<typename _Tp>
+ constexpr _Tp&&
+ forward(typename std::remove_reference<_Tp>::type& __t) noexcept
+ { return static_cast<_Tp&&>(__t); }
+
+ /**
+ * @brief Forward an rvalue.
+ * @return The parameter cast to the specified type.
+ *
+ * This function is used to implement "perfect forwarding".
+ */
+ template<typename _Tp>
+ constexpr _Tp&&
+ forward(typename std::remove_reference<_Tp>::type&& __t) noexcept
+ {
+ static_assert(!std::is_lvalue_reference<_Tp>::value, "template argument"
+ " substituting _Tp is an lvalue reference type");
+ return static_cast<_Tp&&>(__t);
+ }
+
+ /**
+ * @brief Convert a value to an rvalue.
+ * @param __t A thing of arbitrary type.
+ * @return The parameter cast to an rvalue-reference to allow moving it.
+ */
+ template<typename _Tp>
+ constexpr typename std::remove_reference<_Tp>::type&&
+ move(_Tp&& __t) noexcept
+ { return static_cast<typename std::remove_reference<_Tp>::type&&>(__t); }
+
+
+ template<typename _Tp>
+ struct __move_if_noexcept_cond
+ : public __and_<__not_<is_nothrow_move_constructible<_Tp>>,
+ is_copy_constructible<_Tp>>::type { };
+
+ /**
+ * @brief Conditionally convert a value to an rvalue.
+ * @param __x A thing of arbitrary type.
+ * @return The parameter, possibly cast to an rvalue-reference.
+ *
+ * Same as std::move unless the type's move constructor could throw and the
+ * type is copyable, in which case an lvalue-reference is returned instead.
+ */
+ template<typename _Tp>
+ constexpr typename
+ conditional<__move_if_noexcept_cond<_Tp>::value, const _Tp&, _Tp&&>::type
+ move_if_noexcept(_Tp& __x) noexcept
+ { return std::move(__x); }
+
+ // declval, from type_traits.
+
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2296. std::addressof should be constexpr
+#define __cpp_lib_addressof_constexpr 201603
+
+ /**
+ * @brief Returns the actual address of the object or function
+ * referenced by r, even in the presence of an overloaded
+ * operator&.
+ * @param __r Reference to an object or function.
+ * @return The actual address.
+ */
+ template<typename _Tp>
+ inline _GLIBCXX17_CONSTEXPR _Tp*
+ addressof(_Tp& __r) noexcept
+ { return std::__addressof(__r); }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2598. addressof works on temporaries
+ template<typename _Tp>
+ const _Tp* addressof(const _Tp&&) = delete;
+
+ // C++11 version of std::exchange for internal use.
+ template <typename _Tp, typename _Up = _Tp>
+ _GLIBCXX20_CONSTEXPR
+ inline _Tp
+ __exchange(_Tp& __obj, _Up&& __new_val)
+ {
+ _Tp __old_val = std::move(__obj);
+ __obj = std::forward<_Up>(__new_val);
+ return __old_val;
+ }
+
+ /// @} group utilities
+
+#define _GLIBCXX_FWDREF(_Tp) _Tp&&
+#define _GLIBCXX_MOVE(__val) std::move(__val)
+#define _GLIBCXX_FORWARD(_Tp,__val) std::forward<_Tp>(__val)
+
+
+
+
+
+
+ /**
+ * @addtogroup utilities
+ * @{
+ */
+
+ /**
+ * @brief Swaps two values.
+ * @param __a A thing of arbitrary type.
+ * @param __b Another thing of arbitrary type.
+ * @return Nothing.
+ */
+ template<typename _Tp>
+ _GLIBCXX20_CONSTEXPR
+ inline
+
+ typename enable_if<__and_<__not_<__is_tuple_like<_Tp>>,
+ is_move_constructible<_Tp>,
+ is_move_assignable<_Tp>>::value>::type
+
+
+
+ swap(_Tp& __a, _Tp& __b)
+ _GLIBCXX_NOEXCEPT_IF(__and_<is_nothrow_move_constructible<_Tp>,
+ is_nothrow_move_assignable<_Tp>>::value)
+ {
+
+
+
+
+ _Tp __tmp = _GLIBCXX_MOVE(__a);
+ __a = _GLIBCXX_MOVE(__b);
+ __b = _GLIBCXX_MOVE(__tmp);
+ }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 809. std::swap should be overloaded for array types.
+ /// Swap the contents of two arrays.
+ template<typename _Tp, size_t _Nm>
+ _GLIBCXX20_CONSTEXPR
+ inline
+
+ typename enable_if<__is_swappable<_Tp>::value>::type
+
+
+
+ swap(_Tp (&__a)[_Nm], _Tp (&__b)[_Nm])
+ _GLIBCXX_NOEXCEPT_IF(__is_nothrow_swappable<_Tp>::value)
+ {
+ for (size_t __n = 0; __n < _Nm; ++__n)
+ swap(__a[__n], __b[__n]);
+ }
+
+ /// @} group utilities
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+
+extern "C++" {
+
+namespace std
+{
+ /**
+ * @addtogroup exceptions
+ * @{
+ */
+
+ /// Exception class with exception_ptr data member.
+ class nested_exception
+ {
+ exception_ptr _M_ptr;
+
+ public:
+ nested_exception() noexcept : _M_ptr(current_exception()) { }
+
+ nested_exception(const nested_exception&) noexcept = default;
+
+ nested_exception& operator=(const nested_exception&) noexcept = default;
+
+ virtual ~nested_exception() noexcept;
+
+ [[noreturn]]
+ void
+ rethrow_nested() const
+ {
+ if (_M_ptr)
+ rethrow_exception(_M_ptr);
+ std::terminate();
+ }
+
+ exception_ptr
+ nested_ptr() const noexcept
+ { return _M_ptr; }
+ };
+
+ /// @cond undocumented
+
+ template<typename _Except>
+ struct _Nested_exception : public _Except, public nested_exception
+ {
+ explicit _Nested_exception(const _Except& __ex)
+ : _Except(__ex)
+ { }
+
+ explicit _Nested_exception(_Except&& __ex)
+ : _Except(static_cast<_Except&&>(__ex))
+ { }
+ };
+
+ // [except.nested]/8
+ // Throw an exception of unspecified type that is publicly derived from
+ // both remove_reference_t<_Tp> and nested_exception.
+ template<typename _Tp>
+ [[noreturn]]
+ inline void
+ __throw_with_nested_impl(_Tp&& __t, true_type)
+ {
+ using _Up = typename remove_reference<_Tp>::type;
+ throw _Nested_exception<_Up>{std::forward<_Tp>(__t)};
+ }
+
+ template<typename _Tp>
+ [[noreturn]]
+ inline void
+ __throw_with_nested_impl(_Tp&& __t, false_type)
+ { throw std::forward<_Tp>(__t); }
+
+ /// @endcond
+
+ /// If @p __t is derived from nested_exception, throws @p __t.
+ /// Else, throws an implementation-defined object derived from both.
+ template<typename _Tp>
+ [[noreturn]]
+ inline void
+ throw_with_nested(_Tp&& __t)
+ {
+ using _Up = typename decay<_Tp>::type;
+ using _CopyConstructible
+ = __and_<is_copy_constructible<_Up>, is_move_constructible<_Up>>;
+ static_assert(_CopyConstructible::value,
+ "throw_with_nested argument must be CopyConstructible");
+ using __nest = __and_<is_class<_Up>, __bool_constant<!__is_final(_Up)>,
+ __not_<is_base_of<nested_exception, _Up>>>;
+ std::__throw_with_nested_impl(std::forward<_Tp>(__t), __nest{});
+ }
+
+ /// @cond undocumented
+
+ // Determine if dynamic_cast<const nested_exception&> would be well-formed.
+ template<typename _Tp>
+ using __rethrow_if_nested_cond = typename enable_if<
+ __and_<is_polymorphic<_Tp>,
+ __or_<__not_<is_base_of<nested_exception, _Tp>>,
+ is_convertible<_Tp*, nested_exception*>>>::value
+ >::type;
+
+ // Attempt dynamic_cast to nested_exception and call rethrow_nested().
+ template<typename _Ex>
+ inline __rethrow_if_nested_cond<_Ex>
+ __rethrow_if_nested_impl(const _Ex* __ptr)
+ {
+ if (auto __ne_ptr = dynamic_cast<const nested_exception*>(__ptr))
+ __ne_ptr->rethrow_nested();
+ }
+
+ // Otherwise, no effects.
+ inline void
+ __rethrow_if_nested_impl(const void*)
+ { }
+
+ /// @endcond
+
+ /// If @p __ex is derived from nested_exception, @p __ex.rethrow_nested().
+ template<typename _Ex>
+ inline void
+ rethrow_if_nested(const _Ex& __ex)
+ { std::__rethrow_if_nested_impl(std::__addressof(__ex)); }
+
+ // @} group exceptions
+} // namespace std
+
+} // extern "C++"
+
+
+
+#pragma GCC visibility pop
+
+
+
+// Character Traits for use by standard string and iostream -*- C++ -*-
+
+// Copyright (C) 1997-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/char_traits.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{string}
+ */
+
+//
+// ISO C++ 14882: 21 Strings library
+//
+
+
+#define _CHAR_TRAITS_H 1
+
+
+
+// Core algorithmic facilities -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1996-1998
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file bits/stl_algobase.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{algorithm}
+ */
+
+
+#define _STL_ALGOBASE_H 1
+
+
+// Function-Based Exception Support -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/functexcept.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{exception}
+ *
+ * This header provides support for -fno-exceptions.
+ */
+
+//
+// ISO C++ 14882: 19.1 Exception classes
+//
+
+
+#define _FUNCTEXCEPT_H 1
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // Helper for exception objects in <except>
+ void
+ __throw_bad_exception(void) __attribute__((__noreturn__));
+
+ // Helper for exception objects in <new>
+ void
+ __throw_bad_alloc(void) __attribute__((__noreturn__));
+
+ void
+ __throw_bad_array_new_length(void) __attribute__((__noreturn__));
+
+ // Helper for exception objects in <typeinfo>
+ void
+ __throw_bad_cast(void) __attribute__((__noreturn__));
+
+ void
+ __throw_bad_typeid(void) __attribute__((__noreturn__));
+
+ // Helpers for exception objects in <stdexcept>
+ void
+ __throw_logic_error(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_domain_error(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_invalid_argument(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_length_error(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_out_of_range(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_out_of_range_fmt(const char*, ...) __attribute__((__noreturn__))
+ __attribute__((__format__(__gnu_printf__, 1, 2)));
+
+ void
+ __throw_runtime_error(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_range_error(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_overflow_error(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_underflow_error(const char*) __attribute__((__noreturn__));
+
+ // Helpers for exception objects in <ios>
+ void
+ __throw_ios_failure(const char*) __attribute__((__noreturn__));
+
+ void
+ __throw_ios_failure(const char*, int) __attribute__((__noreturn__));
+
+ // Helpers for exception objects in <system_error>
+ void
+ __throw_system_error(int) __attribute__((__noreturn__));
+
+ // Helpers for exception objects in <future>
+ void
+ __throw_future_error(int) __attribute__((__noreturn__));
+
+ // Helpers for exception objects in <functional>
+ void
+ __throw_bad_function_call() __attribute__((__noreturn__));
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// The -*- C++ -*- type traits classes for internal use in libstdc++
+
+// Copyright (C) 2000-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/cpp_type_traits.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{ext/type_traits}
+ */
+
+// Written by Gabriel Dos Reis <dosreis@cmla.ens-cachan.fr>
+
+
+#define _CPP_TYPE_TRAITS_H 1
+
+
+
+
+
+//
+// This file provides some compile-time information about various types.
+// These representations were designed, on purpose, to be constant-expressions
+// and not types as found in <bits/type_traits.h>. In particular, they
+// can be used in control structures and the optimizer hopefully will do
+// the obvious thing.
+//
+// Why integral expressions, and not functions nor types?
+// Firstly, these compile-time entities are used as template-arguments
+// so function return values won't work: We need compile-time entities.
+// We're left with types and constant integral expressions.
+// Secondly, from the point of view of ease of use, type-based compile-time
+// information is -not- *that* convenient. One has to write lots of
+// overloaded functions and to hope that the compiler will select the right
+// one. As a net effect, the overall structure isn't very clear at first
+// glance.
+// Thirdly, partial ordering and overload resolution (of function templates)
+// is highly costly in terms of compiler-resource. It is a Good Thing to
+// keep these resource consumption as least as possible.
+//
+// See valarray_array.h for a case use.
+//
+// -- Gaby (dosreis@cmla.ens-cachan.fr) 2000-03-06.
+//
+// Update 2005: types are also provided and <bits/type_traits.h> has been
+// removed.
+//
+
+extern "C++" {
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ struct __true_type { };
+ struct __false_type { };
+
+ template<bool>
+ struct __truth_type
+ { typedef __false_type __type; };
+
+ template<>
+ struct __truth_type<true>
+ { typedef __true_type __type; };
+
+ // N.B. The conversions to bool are needed due to the issue
+ // explained in c++/19404.
+ template<class _Sp, class _Tp>
+ struct __traitor
+ {
+ enum { __value = bool(_Sp::__value) || bool(_Tp::__value) };
+ typedef typename __truth_type<__value>::__type __type;
+ };
+
+ // Compare for equality of types.
+ template<typename, typename>
+ struct __are_same
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ template<typename _Tp>
+ struct __are_same<_Tp, _Tp>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ // Holds if the template-argument is a void type.
+ template<typename _Tp>
+ struct __is_void
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ template<>
+ struct __is_void<void>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ //
+ // Integer types
+ //
+ template<typename _Tp>
+ struct __is_integer
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ // Thirteen specializations (yes there are eleven standard integer
+ // types; <em>long long</em> and <em>unsigned long long</em> are
+ // supported as extensions). Up to four target-specific __int<N>
+ // types are supported as well.
+ template<>
+ struct __is_integer<bool>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<signed char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<unsigned char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+ template<>
+ struct __is_integer<wchar_t>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+
+
+ template<>
+ struct __is_integer<char16_t>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<char32_t>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+ template<>
+ struct __is_integer<short>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<unsigned short>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<int>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<unsigned int>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<long>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<unsigned long>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<long long>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_integer<unsigned long long>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+#define __INT_N(TYPE) template<> struct __is_integer<TYPE> { enum { __value = 1 }; typedef __true_type __type; }; template<> struct __is_integer<unsigned TYPE> { enum { __value = 1 }; typedef __true_type __type; };
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#undef __INT_N
+
+ //
+ // Floating point types
+ //
+ template<typename _Tp>
+ struct __is_floating
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ // three specializations (float, double and 'long double')
+ template<>
+ struct __is_floating<float>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_floating<double>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_floating<long double>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ //
+ // Pointer types
+ //
+ template<typename _Tp>
+ struct __is_pointer
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ template<typename _Tp>
+ struct __is_pointer<_Tp*>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ //
+ // An arithmetic type is an integer type or a floating point type
+ //
+ template<typename _Tp>
+ struct __is_arithmetic
+ : public __traitor<__is_integer<_Tp>, __is_floating<_Tp> >
+ { };
+
+ //
+ // A scalar type is an arithmetic type or a pointer type
+ //
+ template<typename _Tp>
+ struct __is_scalar
+ : public __traitor<__is_arithmetic<_Tp>, __is_pointer<_Tp> >
+ { };
+
+ //
+ // For use in std::copy and std::find overloads for streambuf iterators.
+ //
+ template<typename _Tp>
+ struct __is_char
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ template<>
+ struct __is_char<char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+ template<>
+ struct __is_char<wchar_t>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+ template<typename _Tp>
+ struct __is_byte
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ template<>
+ struct __is_byte<char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_byte<signed char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+ template<>
+ struct __is_byte<unsigned char>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+ enum class byte : unsigned char;
+
+ template<>
+ struct __is_byte<byte>
+ {
+ enum { __value = 1 };
+ typedef __true_type __type;
+ };
+
+
+
+ template<typename> struct iterator_traits;
+
+ // A type that is safe for use with memcpy, memmove, memcmp etc.
+ template<typename _Tp>
+ struct __is_nonvolatile_trivially_copyable
+ {
+ enum { __value = __is_trivially_copyable(_Tp) };
+ };
+
+ // Cannot use memcpy/memmove/memcmp on volatile types even if they are
+ // trivially copyable, so ensure __memcpyable<volatile int*, volatile int*>
+ // and similar will be false.
+ template<typename _Tp>
+ struct __is_nonvolatile_trivially_copyable<volatile _Tp>
+ {
+ enum { __value = 0 };
+ };
+
+ // Whether two iterator types can be used with memcpy/memmove.
+ template<typename _OutputIter, typename _InputIter>
+ struct __memcpyable
+ {
+ enum { __value = 0 };
+ };
+
+ template<typename _Tp>
+ struct __memcpyable<_Tp*, _Tp*>
+ : __is_nonvolatile_trivially_copyable<_Tp>
+ { };
+
+ template<typename _Tp>
+ struct __memcpyable<_Tp*, const _Tp*>
+ : __is_nonvolatile_trivially_copyable<_Tp>
+ { };
+
+ // Whether two iterator types can be used with memcmp.
+ // This trait only says it's well-formed to use memcmp, not that it
+ // gives the right answer for a given algorithm. So for example, std::equal
+ // needs to add additional checks that the types are integers or pointers,
+ // because other trivially copyable types can overload operator==.
+ template<typename _Iter1, typename _Iter2>
+ struct __memcmpable
+ {
+ enum { __value = 0 };
+ };
+
+ // OK to use memcmp with pointers to trivially copyable types.
+ template<typename _Tp>
+ struct __memcmpable<_Tp*, _Tp*>
+ : __is_nonvolatile_trivially_copyable<_Tp>
+ { };
+
+ template<typename _Tp>
+ struct __memcmpable<const _Tp*, _Tp*>
+ : __is_nonvolatile_trivially_copyable<_Tp>
+ { };
+
+ template<typename _Tp>
+ struct __memcmpable<_Tp*, const _Tp*>
+ : __is_nonvolatile_trivially_copyable<_Tp>
+ { };
+
+ // Whether memcmp can be used to determine ordering for a type
+ // e.g. in std::lexicographical_compare or three-way comparisons.
+ // True for unsigned integer-like types where comparing each byte in turn
+ // as an unsigned char yields the right result. This is true for all
+ // unsigned integers on big endian targets, but only unsigned narrow
+ // character types (and std::byte) on little endian targets.
+ template<typename _Tp, bool _TreatAsBytes =
+
+
+
+ __is_byte<_Tp>::__value
+
+ >
+ struct __is_memcmp_ordered
+ {
+ static const bool __value = _Tp(-1) > _Tp(1); // is unsigned
+ };
+
+ template<typename _Tp>
+ struct __is_memcmp_ordered<_Tp, false>
+ {
+ static const bool __value = false;
+ };
+
+ // Whether two types can be compared using memcmp.
+ template<typename _Tp, typename _Up, bool = sizeof(_Tp) == sizeof(_Up)>
+ struct __is_memcmp_ordered_with
+ {
+ static const bool __value = __is_memcmp_ordered<_Tp>::__value
+ && __is_memcmp_ordered<_Up>::__value;
+ };
+
+ template<typename _Tp, typename _Up>
+ struct __is_memcmp_ordered_with<_Tp, _Up, false>
+ {
+ static const bool __value = false;
+ };
+
+
+
+
+
+
+
+
+
+ // std::byte can only be compared to itself, not to other types.
+ template<>
+ struct __is_memcmp_ordered_with<std::byte, std::byte, true>
+ { static constexpr bool __value = true; };
+
+ template<typename _Tp, bool _SameSize>
+ struct __is_memcmp_ordered_with<_Tp, std::byte, _SameSize>
+ { static constexpr bool __value = false; };
+
+ template<typename _Up, bool _SameSize>
+ struct __is_memcmp_ordered_with<std::byte, _Up, _SameSize>
+ { static constexpr bool __value = false; };
+
+
+ //
+ // Move iterator type
+ //
+ template<typename _Tp>
+ struct __is_move_iterator
+ {
+ enum { __value = 0 };
+ typedef __false_type __type;
+ };
+
+ // Fallback implementation of the function in bits/stl_iterator.h used to
+ // remove the move_iterator wrapper.
+ template<typename _Iterator>
+ _GLIBCXX20_CONSTEXPR
+ inline _Iterator
+ __miter_base(_Iterator __it)
+ { return __it; }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+} // extern "C++"
+
+// -*- C++ -*-
+
+// Copyright (C) 2005-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software
+// Foundation; either version 3, or (at your option) any later
+// version.
+
+// This library is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file ext/type_traits.h
+ * This file is a GNU extension to the Standard C++ Library.
+ */
+
+
+#define _EXT_TYPE_TRAITS 1
+
+
+
+
+
+
+extern "C++" {
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // Define a nested type if some predicate holds.
+ template<bool, typename>
+ struct __enable_if
+ { };
+
+ template<typename _Tp>
+ struct __enable_if<true, _Tp>
+ { typedef _Tp __type; };
+
+
+ // Conditional expression for types. If true, first, if false, second.
+ template<bool _Cond, typename _Iftrue, typename _Iffalse>
+ struct __conditional_type
+ { typedef _Iftrue __type; };
+
+ template<typename _Iftrue, typename _Iffalse>
+ struct __conditional_type<false, _Iftrue, _Iffalse>
+ { typedef _Iffalse __type; };
+
+
+ // Given an integral builtin type, return the corresponding unsigned type.
+ template<typename _Tp>
+ struct __add_unsigned
+ {
+ private:
+ typedef __enable_if<std::__is_integer<_Tp>::__value, _Tp> __if_type;
+
+ public:
+ typedef typename __if_type::__type __type;
+ };
+
+ template<>
+ struct __add_unsigned<char>
+ { typedef unsigned char __type; };
+
+ template<>
+ struct __add_unsigned<signed char>
+ { typedef unsigned char __type; };
+
+ template<>
+ struct __add_unsigned<short>
+ { typedef unsigned short __type; };
+
+ template<>
+ struct __add_unsigned<int>
+ { typedef unsigned int __type; };
+
+ template<>
+ struct __add_unsigned<long>
+ { typedef unsigned long __type; };
+
+ template<>
+ struct __add_unsigned<long long>
+ { typedef unsigned long long __type; };
+
+ // Declare but don't define.
+ template<>
+ struct __add_unsigned<bool>;
+
+ template<>
+ struct __add_unsigned<wchar_t>;
+
+
+ // Given an integral builtin type, return the corresponding signed type.
+ template<typename _Tp>
+ struct __remove_unsigned
+ {
+ private:
+ typedef __enable_if<std::__is_integer<_Tp>::__value, _Tp> __if_type;
+
+ public:
+ typedef typename __if_type::__type __type;
+ };
+
+ template<>
+ struct __remove_unsigned<char>
+ { typedef signed char __type; };
+
+ template<>
+ struct __remove_unsigned<unsigned char>
+ { typedef signed char __type; };
+
+ template<>
+ struct __remove_unsigned<unsigned short>
+ { typedef short __type; };
+
+ template<>
+ struct __remove_unsigned<unsigned int>
+ { typedef int __type; };
+
+ template<>
+ struct __remove_unsigned<unsigned long>
+ { typedef long __type; };
+
+ template<>
+ struct __remove_unsigned<unsigned long long>
+ { typedef long long __type; };
+
+ // Declare but don't define.
+ template<>
+ struct __remove_unsigned<bool>;
+
+ template<>
+ struct __remove_unsigned<wchar_t>;
+
+
+ // For use in string and vstring.
+ template<typename _Type>
+ inline bool
+ __is_null_pointer(_Type* __ptr)
+ { return __ptr == 0; }
+
+ template<typename _Type>
+ inline bool
+ __is_null_pointer(_Type)
+ { return false; }
+
+
+ inline bool
+ __is_null_pointer(std::nullptr_t)
+ { return true; }
+
+
+ // For complex and cmath
+ template<typename _Tp, bool = std::__is_integer<_Tp>::__value>
+ struct __promote
+ { typedef double __type; };
+
+ // No nested __type member for non-integer non-floating point types,
+ // allows this type to be used for SFINAE to constrain overloads in
+ // <cmath> and <complex> to only the intended types.
+ template<typename _Tp>
+ struct __promote<_Tp, false>
+ { };
+
+ template<>
+ struct __promote<long double>
+ { typedef long double __type; };
+
+ template<>
+ struct __promote<double>
+ { typedef double __type; };
+
+ template<>
+ struct __promote<float>
+ { typedef float __type; };
+
+ template<typename _Tp, typename _Up,
+ typename _Tp2 = typename __promote<_Tp>::__type,
+ typename _Up2 = typename __promote<_Up>::__type>
+ struct __promote_2
+ {
+ typedef __typeof__(_Tp2() + _Up2()) __type;
+ };
+
+ template<typename _Tp, typename _Up, typename _Vp,
+ typename _Tp2 = typename __promote<_Tp>::__type,
+ typename _Up2 = typename __promote<_Up>::__type,
+ typename _Vp2 = typename __promote<_Vp>::__type>
+ struct __promote_3
+ {
+ typedef __typeof__(_Tp2() + _Up2() + _Vp2()) __type;
+ };
+
+ template<typename _Tp, typename _Up, typename _Vp, typename _Wp,
+ typename _Tp2 = typename __promote<_Tp>::__type,
+ typename _Up2 = typename __promote<_Up>::__type,
+ typename _Vp2 = typename __promote<_Vp>::__type,
+ typename _Wp2 = typename __promote<_Wp>::__type>
+ struct __promote_4
+ {
+ typedef __typeof__(_Tp2() + _Up2() + _Vp2() + _Wp2()) __type;
+ };
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+} // extern "C++"
+
+// -*- C++ -*-
+
+// Copyright (C) 2007-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the terms
+// of the GNU General Public License as published by the Free Software
+// Foundation; either version 3, or (at your option) any later
+// version.
+
+// This library is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file ext/numeric_traits.h
+ * This file is a GNU extension to the Standard C++ Library.
+ */
+
+
+#define _EXT_NUMERIC_TRAITS 1
+
+
+
+
+
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ // Compile time constants for builtin types.
+ // In C++98 std::numeric_limits member functions are not constant expressions
+ // (that changed in C++11 with the addition of 'constexpr').
+ // Even for C++11, this header is smaller than <limits> and can be used
+ // when only is_signed, digits, min, or max values are needed for integers,
+ // or is_signed, digits10, max_digits10, or max_exponent10 for floats.
+
+ // Unlike __is_integer (and std::is_integral) this trait is true for
+ // non-standard built-in integer types such as __int128 and __int20.
+ template<typename _Tp>
+ struct __is_integer_nonstrict
+ : public std::__is_integer<_Tp>
+ {
+ using std::__is_integer<_Tp>::__value;
+
+ // The number of bits in the value representation.
+ enum { __width = __value ? sizeof(_Tp) * __CHAR_BIT__ : 0 };
+ };
+
+ template<typename _Value>
+ struct __numeric_traits_integer
+ {
+
+ static_assert(__is_integer_nonstrict<_Value>::__value,
+ "invalid specialization");
+
+
+ // NB: these two are also available in std::numeric_limits as compile
+ // time constants, but <limits> is big and we can avoid including it.
+ static const bool __is_signed = (_Value)(-1) < 0;
+ static const int __digits
+ = __is_integer_nonstrict<_Value>::__width - __is_signed;
+
+ // The initializers must be constants so that __max and __min are too.
+ static const _Value __max = __is_signed
+ ? (((((_Value)1 << (__digits - 1)) - 1) << 1) + 1)
+ : ~(_Value)0;
+ static const _Value __min = __is_signed ? -__max - 1 : (_Value)0;
+ };
+
+ template<typename _Value>
+ const _Value __numeric_traits_integer<_Value>::__min;
+
+ template<typename _Value>
+ const _Value __numeric_traits_integer<_Value>::__max;
+
+ template<typename _Value>
+ const bool __numeric_traits_integer<_Value>::__is_signed;
+
+ template<typename _Value>
+ const int __numeric_traits_integer<_Value>::__digits;
+
+ // Enable __numeric_traits_integer for types where the __is_integer_nonstrict
+ // primary template doesn't give the right answer.
+#define _GLIBCXX_INT_N_TRAITS(T,WIDTH) template<> struct __is_integer_nonstrict<T> { enum { __value = 1 }; typedef std::__true_type __type; enum { __width = WIDTH }; }; template<> struct __is_integer_nonstrict<unsigned T> { enum { __value = 1 }; typedef std::__true_type __type; enum { __width = WIDTH }; };
+
+ // We need to specify the width for some __intNN types because they
+ // have padding bits, e.g. the object representation of __int20 has 32 bits,
+ // but its width (number of bits in the value representation) is only 20.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ // In strict modes __is_integer<__int128> is false,
+ // but we still want to define __numeric_traits_integer<__int128>.
+ _GLIBCXX_INT_N_TRAITS(__int128, 128)
+
+
+#undef _GLIBCXX_INT_N_TRAITS
+
+
+ /// Convenience alias for __numeric_traits<integer-type>.
+ template<typename _Tp>
+ using __int_traits = __numeric_traits_integer<_Tp>;
+
+
+#define __glibcxx_floating(_Tp,_Fval,_Dval,_LDval) (std::__are_same<_Tp, float>::__value ? _Fval : std::__are_same<_Tp, double>::__value ? _Dval : _LDval)
+
+
+
+#define __glibcxx_max_digits10(_Tp) (2 + __glibcxx_floating(_Tp, __FLT_MANT_DIG__, __DBL_MANT_DIG__, __LDBL_MANT_DIG__) * 643L / 2136)
+
+
+
+#define __glibcxx_digits10(_Tp) __glibcxx_floating(_Tp, __FLT_DIG__, __DBL_DIG__, __LDBL_DIG__)
+
+
+#define __glibcxx_max_exponent10(_Tp) __glibcxx_floating(_Tp, __FLT_MAX_10_EXP__, __DBL_MAX_10_EXP__, __LDBL_MAX_10_EXP__)
+
+
+
+ // N.B. this only supports float, double and long double (no __float128 etc.)
+ template<typename _Value>
+ struct __numeric_traits_floating
+ {
+ // Only floating point types. See N1822.
+ static const int __max_digits10 = __glibcxx_max_digits10(_Value);
+
+ // See above comment...
+ static const bool __is_signed = true;
+ static const int __digits10 = __glibcxx_digits10(_Value);
+ static const int __max_exponent10 = __glibcxx_max_exponent10(_Value);
+ };
+
+ template<typename _Value>
+ const int __numeric_traits_floating<_Value>::__max_digits10;
+
+ template<typename _Value>
+ const bool __numeric_traits_floating<_Value>::__is_signed;
+
+ template<typename _Value>
+ const int __numeric_traits_floating<_Value>::__digits10;
+
+ template<typename _Value>
+ const int __numeric_traits_floating<_Value>::__max_exponent10;
+
+#undef __glibcxx_floating
+#undef __glibcxx_max_digits10
+#undef __glibcxx_digits10
+#undef __glibcxx_max_exponent10
+
+ template<typename _Value>
+ struct __numeric_traits
+ : public __numeric_traits_integer<_Value>
+ { };
+
+ template<>
+ struct __numeric_traits<float>
+ : public __numeric_traits_floating<float>
+ { };
+
+ template<>
+ struct __numeric_traits<double>
+ : public __numeric_traits_floating<double>
+ { };
+
+ template<>
+ struct __numeric_traits<long double>
+ : public __numeric_traits_floating<long double>
+ { };
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// Pair implementation -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1996,1997
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file bits/stl_pair.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{utility}
+ */
+
+
+#define _STL_PAIR_H 1
+
+
+
+
+
+
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @addtogroup utilities
+ * @{
+ */
+
+
+ /// Tag type for piecewise construction of std::pair objects.
+ struct piecewise_construct_t { explicit piecewise_construct_t() = default; };
+
+ /// Tag for piecewise construction of std::pair objects.
+ _GLIBCXX17_INLINE constexpr piecewise_construct_t piecewise_construct =
+ piecewise_construct_t();
+
+ /// @cond undocumented
+
+ // Forward declarations.
+ template<typename...>
+ class tuple;
+
+ template<size_t...>
+ struct _Index_tuple;
+
+ // Concept utility functions, reused in conditionally-explicit
+ // constructors.
+ // See PR 70437, don't look at is_constructible or
+ // is_convertible if the types are the same to
+ // avoid querying those properties for incomplete types.
+ template <bool, typename _T1, typename _T2>
+ struct _PCC
+ {
+ template <typename _U1, typename _U2>
+ static constexpr bool _ConstructiblePair()
+ {
+ return __and_<is_constructible<_T1, const _U1&>,
+ is_constructible<_T2, const _U2&>>::value;
+ }
+
+ template <typename _U1, typename _U2>
+ static constexpr bool _ImplicitlyConvertiblePair()
+ {
+ return __and_<is_convertible<const _U1&, _T1>,
+ is_convertible<const _U2&, _T2>>::value;
+ }
+
+ template <typename _U1, typename _U2>
+ static constexpr bool _MoveConstructiblePair()
+ {
+ return __and_<is_constructible<_T1, _U1&&>,
+ is_constructible<_T2, _U2&&>>::value;
+ }
+
+ template <typename _U1, typename _U2>
+ static constexpr bool _ImplicitlyMoveConvertiblePair()
+ {
+ return __and_<is_convertible<_U1&&, _T1>,
+ is_convertible<_U2&&, _T2>>::value;
+ }
+
+ template <bool __implicit, typename _U1, typename _U2>
+ static constexpr bool _CopyMovePair()
+ {
+ using __do_converts = __and_<is_convertible<const _U1&, _T1>,
+ is_convertible<_U2&&, _T2>>;
+ using __converts = typename conditional<__implicit,
+ __do_converts,
+ __not_<__do_converts>>::type;
+ return __and_<is_constructible<_T1, const _U1&>,
+ is_constructible<_T2, _U2&&>,
+ __converts
+ >::value;
+ }
+
+ template <bool __implicit, typename _U1, typename _U2>
+ static constexpr bool _MoveCopyPair()
+ {
+ using __do_converts = __and_<is_convertible<_U1&&, _T1>,
+ is_convertible<const _U2&, _T2>>;
+ using __converts = typename conditional<__implicit,
+ __do_converts,
+ __not_<__do_converts>>::type;
+ return __and_<is_constructible<_T1, _U1&&>,
+ is_constructible<_T2, const _U2&&>,
+ __converts
+ >::value;
+ }
+ };
+
+ template <typename _T1, typename _T2>
+ struct _PCC<false, _T1, _T2>
+ {
+ template <typename _U1, typename _U2>
+ static constexpr bool _ConstructiblePair()
+ {
+ return false;
+ }
+
+ template <typename _U1, typename _U2>
+ static constexpr bool _ImplicitlyConvertiblePair()
+ {
+ return false;
+ }
+
+ template <typename _U1, typename _U2>
+ static constexpr bool _MoveConstructiblePair()
+ {
+ return false;
+ }
+
+ template <typename _U1, typename _U2>
+ static constexpr bool _ImplicitlyMoveConvertiblePair()
+ {
+ return false;
+ }
+ };
+
+
+ template<typename _U1, typename _U2> class __pair_base
+ {
+
+ template<typename _T1, typename _T2> friend struct pair;
+ __pair_base() = default;
+ ~__pair_base() = default;
+ __pair_base(const __pair_base&) = default;
+ __pair_base& operator=(const __pair_base&) = delete;
+
+ };
+
+ /// @endcond
+
+ /**
+ * @brief Struct holding two objects of arbitrary type.
+ *
+ * @tparam _T1 Type of first object.
+ * @tparam _T2 Type of second object.
+ *
+ * <https://gcc.gnu.org/onlinedocs/libstdc++/manual/utilities.html>
+ */
+ template<typename _T1, typename _T2>
+ struct pair
+ : private __pair_base<_T1, _T2>
+ {
+ typedef _T1 first_type; ///< The type of the `first` member
+ typedef _T2 second_type; ///< The type of the `second` member
+
+ _T1 first; ///< The first member
+ _T2 second; ///< The second member
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 265. std::pair::pair() effects overly restrictive
+ /** The default constructor creates @c first and @c second using their
+ * respective default constructors. */
+
+ template <typename _U1 = _T1,
+ typename _U2 = _T2,
+ typename enable_if<__and_<
+ __is_implicitly_default_constructible<_U1>,
+ __is_implicitly_default_constructible<_U2>>
+ ::value, bool>::type = true>
+
+ _GLIBCXX_CONSTEXPR pair()
+ : first(), second() { }
+
+
+ template <typename _U1 = _T1,
+ typename _U2 = _T2,
+ typename enable_if<__and_<
+ is_default_constructible<_U1>,
+ is_default_constructible<_U2>,
+ __not_<
+ __and_<__is_implicitly_default_constructible<_U1>,
+ __is_implicitly_default_constructible<_U2>>>>
+ ::value, bool>::type = false>
+ explicit constexpr pair()
+ : first(), second() { }
+
+
+
+
+
+
+
+ // Shortcut for constraining the templates that don't take pairs.
+ /// @cond undocumented
+ using _PCCP = _PCC<true, _T1, _T2>;
+ /// @endcond
+
+ /// Construct from two const lvalues, allowing implicit conversions.
+ template<typename _U1 = _T1, typename _U2=_T2, typename
+ enable_if<_PCCP::template
+ _ConstructiblePair<_U1, _U2>()
+ && _PCCP::template
+ _ImplicitlyConvertiblePair<_U1, _U2>(),
+ bool>::type=true>
+ constexpr pair(const _T1& __a, const _T2& __b)
+ : first(__a), second(__b) { }
+
+ /// Construct from two const lvalues, disallowing implicit conversions.
+ template<typename _U1 = _T1, typename _U2=_T2, typename
+ enable_if<_PCCP::template
+ _ConstructiblePair<_U1, _U2>()
+ && !_PCCP::template
+ _ImplicitlyConvertiblePair<_U1, _U2>(),
+ bool>::type=false>
+ explicit constexpr pair(const _T1& __a, const _T2& __b)
+ : first(__a), second(__b) { }
+
+
+
+
+
+
+
+
+ // Shortcut for constraining the templates that take pairs.
+ /// @cond undocumented
+ template <typename _U1, typename _U2>
+ using _PCCFP = _PCC<!is_same<_T1, _U1>::value
+ || !is_same<_T2, _U2>::value,
+ _T1, _T2>;
+ /// @endcond
+
+ template<typename _U1, typename _U2, typename
+ enable_if<_PCCFP<_U1, _U2>::template
+ _ConstructiblePair<_U1, _U2>()
+ && _PCCFP<_U1, _U2>::template
+ _ImplicitlyConvertiblePair<_U1, _U2>(),
+ bool>::type=true>
+ constexpr pair(const pair<_U1, _U2>& __p)
+ : first(__p.first), second(__p.second) { }
+
+ template<typename _U1, typename _U2, typename
+ enable_if<_PCCFP<_U1, _U2>::template
+ _ConstructiblePair<_U1, _U2>()
+ && !_PCCFP<_U1, _U2>::template
+ _ImplicitlyConvertiblePair<_U1, _U2>(),
+ bool>::type=false>
+ explicit constexpr pair(const pair<_U1, _U2>& __p)
+ : first(__p.first), second(__p.second) { }
+
+
+
+ constexpr pair(const pair&) = default; ///< Copy constructor
+ constexpr pair(pair&&) = default; ///< Move constructor
+
+ // DR 811.
+ template<typename _U1, typename
+ enable_if<_PCCP::template
+ _MoveCopyPair<true, _U1, _T2>(),
+ bool>::type=true>
+ constexpr pair(_U1&& __x, const _T2& __y)
+ : first(std::forward<_U1>(__x)), second(__y) { }
+
+ template<typename _U1, typename
+ enable_if<_PCCP::template
+ _MoveCopyPair<false, _U1, _T2>(),
+ bool>::type=false>
+ explicit constexpr pair(_U1&& __x, const _T2& __y)
+ : first(std::forward<_U1>(__x)), second(__y) { }
+
+ template<typename _U2, typename
+ enable_if<_PCCP::template
+ _CopyMovePair<true, _T1, _U2>(),
+ bool>::type=true>
+ constexpr pair(const _T1& __x, _U2&& __y)
+ : first(__x), second(std::forward<_U2>(__y)) { }
+
+ template<typename _U2, typename
+ enable_if<_PCCP::template
+ _CopyMovePair<false, _T1, _U2>(),
+ bool>::type=false>
+ explicit pair(const _T1& __x, _U2&& __y)
+ : first(__x), second(std::forward<_U2>(__y)) { }
+
+ template<typename _U1, typename _U2, typename
+ enable_if<_PCCP::template
+ _MoveConstructiblePair<_U1, _U2>()
+ && _PCCP::template
+ _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
+ bool>::type=true>
+ constexpr pair(_U1&& __x, _U2&& __y)
+ : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
+
+ template<typename _U1, typename _U2, typename
+ enable_if<_PCCP::template
+ _MoveConstructiblePair<_U1, _U2>()
+ && !_PCCP::template
+ _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
+ bool>::type=false>
+ explicit constexpr pair(_U1&& __x, _U2&& __y)
+ : first(std::forward<_U1>(__x)), second(std::forward<_U2>(__y)) { }
+
+
+ template<typename _U1, typename _U2, typename
+ enable_if<_PCCFP<_U1, _U2>::template
+ _MoveConstructiblePair<_U1, _U2>()
+ && _PCCFP<_U1, _U2>::template
+ _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
+ bool>::type=true>
+ constexpr pair(pair<_U1, _U2>&& __p)
+ : first(std::forward<_U1>(__p.first)),
+ second(std::forward<_U2>(__p.second)) { }
+
+ template<typename _U1, typename _U2, typename
+ enable_if<_PCCFP<_U1, _U2>::template
+ _MoveConstructiblePair<_U1, _U2>()
+ && !_PCCFP<_U1, _U2>::template
+ _ImplicitlyMoveConvertiblePair<_U1, _U2>(),
+ bool>::type=false>
+ explicit constexpr pair(pair<_U1, _U2>&& __p)
+ : first(std::forward<_U1>(__p.first)),
+ second(std::forward<_U2>(__p.second)) { }
+
+ template<typename... _Args1, typename... _Args2>
+ _GLIBCXX20_CONSTEXPR
+ pair(piecewise_construct_t, tuple<_Args1...>, tuple<_Args2...>);
+
+ _GLIBCXX20_CONSTEXPR pair&
+ operator=(typename conditional<
+ __and_<is_copy_assignable<_T1>,
+ is_copy_assignable<_T2>>::value,
+ const pair&, const __nonesuch&>::type __p)
+ {
+ first = __p.first;
+ second = __p.second;
+ return *this;
+ }
+
+ _GLIBCXX20_CONSTEXPR pair&
+ operator=(typename conditional<
+ __and_<is_move_assignable<_T1>,
+ is_move_assignable<_T2>>::value,
+ pair&&, __nonesuch&&>::type __p)
+ noexcept(__and_<is_nothrow_move_assignable<_T1>,
+ is_nothrow_move_assignable<_T2>>::value)
+ {
+ first = std::forward<first_type>(__p.first);
+ second = std::forward<second_type>(__p.second);
+ return *this;
+ }
+
+ template<typename _U1, typename _U2>
+ _GLIBCXX20_CONSTEXPR
+ typename enable_if<__and_<is_assignable<_T1&, const _U1&>,
+ is_assignable<_T2&, const _U2&>>::value,
+ pair&>::type
+ operator=(const pair<_U1, _U2>& __p)
+ {
+ first = __p.first;
+ second = __p.second;
+ return *this;
+ }
+
+ template<typename _U1, typename _U2>
+ _GLIBCXX20_CONSTEXPR
+ typename enable_if<__and_<is_assignable<_T1&, _U1&&>,
+ is_assignable<_T2&, _U2&&>>::value,
+ pair&>::type
+ operator=(pair<_U1, _U2>&& __p)
+ {
+ first = std::forward<_U1>(__p.first);
+ second = std::forward<_U2>(__p.second);
+ return *this;
+ }
+
+ /// Swap the first members and then the second members.
+ _GLIBCXX20_CONSTEXPR void
+ swap(pair& __p)
+ noexcept(__and_<__is_nothrow_swappable<_T1>,
+ __is_nothrow_swappable<_T2>>::value)
+ {
+ using std::swap;
+ swap(first, __p.first);
+ swap(second, __p.second);
+ }
+
+ private:
+ template<typename... _Args1, size_t... _Indexes1,
+ typename... _Args2, size_t... _Indexes2>
+ _GLIBCXX20_CONSTEXPR
+ pair(tuple<_Args1...>&, tuple<_Args2...>&,
+ _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>);
+
+ };
+
+ /// @relates pair @{
+
+
+ template<typename _T1, typename _T2> pair(_T1, _T2) -> pair<_T1, _T2>;
+
+
+ /// Two pairs of the same type are equal iff their members are equal.
+ template<typename _T1, typename _T2>
+ inline _GLIBCXX_CONSTEXPR bool
+ operator==(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
+ { return __x.first == __y.first && __x.second == __y.second; }
+
+ /** Defines a lexicographical order for pairs.
+ *
+ * For two pairs of the same type, `P` is ordered before `Q` if
+ * `P.first` is less than `Q.first`, or if `P.first` and `Q.first`
+ * are equivalent (neither is less than the other) and `P.second` is less
+ * than `Q.second`.
+ */
+ template<typename _T1, typename _T2>
+ inline _GLIBCXX_CONSTEXPR bool
+ operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
+ { return __x.first < __y.first
+ || (!(__y.first < __x.first) && __x.second < __y.second); }
+
+ /// Uses @c operator== to find the result.
+ template<typename _T1, typename _T2>
+ inline _GLIBCXX_CONSTEXPR bool
+ operator!=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
+ { return !(__x == __y); }
+
+ /// Uses @c operator< to find the result.
+ template<typename _T1, typename _T2>
+ inline _GLIBCXX_CONSTEXPR bool
+ operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
+ { return __y < __x; }
+
+ /// Uses @c operator< to find the result.
+ template<typename _T1, typename _T2>
+ inline _GLIBCXX_CONSTEXPR bool
+ operator<=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
+ { return !(__y < __x); }
+
+ /// Uses @c operator< to find the result.
+ template<typename _T1, typename _T2>
+ inline _GLIBCXX_CONSTEXPR bool
+ operator>=(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
+ { return !(__x < __y); }
+
+
+
+ /** Swap overload for pairs. Calls std::pair::swap().
+ *
+ * @note This std::swap overload is not declared in C++03 mode,
+ * which has performance implications, e.g. see https://gcc.gnu.org/PR38466
+ */
+ template<typename _T1, typename _T2>
+ _GLIBCXX20_CONSTEXPR inline
+
+ // Constrained free swap overload, see p0185r1
+ typename enable_if<__and_<__is_swappable<_T1>,
+ __is_swappable<_T2>>::value>::type
+
+
+
+ swap(pair<_T1, _T2>& __x, pair<_T1, _T2>& __y)
+ noexcept(noexcept(__x.swap(__y)))
+ { __x.swap(__y); }
+
+
+ template<typename _T1, typename _T2>
+ typename enable_if<!__and_<__is_swappable<_T1>,
+ __is_swappable<_T2>>::value>::type
+ swap(pair<_T1, _T2>&, pair<_T1, _T2>&) = delete;
+
+
+
+ // @} relates pair
+
+ /**
+ * @brief A convenience wrapper for creating a pair from two objects.
+ * @param __x The first object.
+ * @param __y The second object.
+ * @return A newly-constructed pair<> object of the appropriate type.
+ *
+ * The C++98 standard says the objects are passed by reference-to-const,
+ * but C++03 says they are passed by value (this was LWG issue #181).
+ *
+ * Since C++11 they have been passed by forwarding reference and then
+ * forwarded to the new members of the pair. To create a pair with a
+ * member of reference type, pass a `reference_wrapper` to this function.
+ */
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 181. make_pair() unintended behavior
+
+ // NB: DR 706.
+ template<typename _T1, typename _T2>
+ constexpr pair<typename __decay_and_strip<_T1>::__type,
+ typename __decay_and_strip<_T2>::__type>
+ make_pair(_T1&& __x, _T2&& __y)
+ {
+ typedef typename __decay_and_strip<_T1>::__type __ds_type1;
+ typedef typename __decay_and_strip<_T2>::__type __ds_type2;
+ typedef pair<__ds_type1, __ds_type2> __pair_type;
+ return __pair_type(std::forward<_T1>(__x), std::forward<_T2>(__y));
+ }
+
+
+
+
+
+
+
+ /// @}
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+// Types used in iterator implementation -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1996-1998
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file bits/stl_iterator_base_types.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iterator}
+ *
+ * This file contains all of the general iterator-related utility types,
+ * such as iterator_traits and struct iterator.
+ */
+
+
+#define _STL_ITERATOR_BASE_TYPES_H 1
+
+
+
+
+
+
+
+
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @defgroup iterators Iterators
+ * Abstractions for uniform iterating through various underlying types.
+ */
+ //@{
+
+ /**
+ * @defgroup iterator_tags Iterator Tags
+ * These are empty types, used to distinguish different iterators. The
+ * distinction is not made by what they contain, but simply by what they
+ * are. Different underlying algorithms can then be used based on the
+ * different operations supported by different iterator types.
+ */
+ //@{
+ /// Marking input iterators.
+ struct input_iterator_tag { };
+
+ /// Marking output iterators.
+ struct output_iterator_tag { };
+
+ /// Forward iterators support a superset of input iterator operations.
+ struct forward_iterator_tag : public input_iterator_tag { };
+
+ /// Bidirectional iterators support a superset of forward iterator
+ /// operations.
+ struct bidirectional_iterator_tag : public forward_iterator_tag { };
+
+ /// Random-access iterators support a superset of bidirectional
+ /// iterator operations.
+ struct random_access_iterator_tag : public bidirectional_iterator_tag { };
+
+
+
+
+
+ //@}
+
+ /**
+ * @brief Common %iterator class.
+ *
+ * This class does nothing but define nested typedefs. %Iterator classes
+ * can inherit from this class to save some work. The typedefs are then
+ * used in specializations and overloading.
+ *
+ * In particular, there are no default implementations of requirements
+ * such as @c operator++ and the like. (How could there be?)
+ */
+ template<typename _Category, typename _Tp, typename _Distance = ptrdiff_t,
+ typename _Pointer = _Tp*, typename _Reference = _Tp&>
+ struct iterator
+ {
+ /// One of the @link iterator_tags tag types@endlink.
+ typedef _Category iterator_category;
+ /// The type "pointed to" by the iterator.
+ typedef _Tp value_type;
+ /// Distance between iterators is represented as this type.
+ typedef _Distance difference_type;
+ /// This type represents a pointer-to-value_type.
+ typedef _Pointer pointer;
+ /// This type represents a reference-to-value_type.
+ typedef _Reference reference;
+ };
+
+ /**
+ * @brief Traits class for iterators.
+ *
+ * This class does nothing but define nested typedefs. The general
+ * version simply @a forwards the nested typedefs from the Iterator
+ * argument. Specialized versions for pointers and pointers-to-const
+ * provide tighter, more correct semantics.
+ */
+ template<typename _Iterator>
+ struct iterator_traits;
+
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 2408. SFINAE-friendly common_type/iterator_traits is missing in C++14
+ template<typename _Iterator, typename = __void_t<>>
+ struct __iterator_traits { };
+
+
+
+ template<typename _Iterator>
+ struct __iterator_traits<_Iterator,
+ __void_t<typename _Iterator::iterator_category,
+ typename _Iterator::value_type,
+ typename _Iterator::difference_type,
+ typename _Iterator::pointer,
+ typename _Iterator::reference>>
+ {
+ typedef typename _Iterator::iterator_category iterator_category;
+ typedef typename _Iterator::value_type value_type;
+ typedef typename _Iterator::difference_type difference_type;
+ typedef typename _Iterator::pointer pointer;
+ typedef typename _Iterator::reference reference;
+ };
+
+
+ template<typename _Iterator>
+ struct iterator_traits
+ : public __iterator_traits<_Iterator> { };
+
+
+ /// Partial specialization for pointer types.
+ template<typename _Tp>
+ struct iterator_traits<_Tp*>
+ {
+ typedef random_access_iterator_tag iterator_category;
+ typedef _Tp value_type;
+ typedef ptrdiff_t difference_type;
+ typedef _Tp* pointer;
+ typedef _Tp& reference;
+ };
+
+ /// Partial specialization for const pointer types.
+ template<typename _Tp>
+ struct iterator_traits<const _Tp*>
+ {
+ typedef random_access_iterator_tag iterator_category;
+ typedef _Tp value_type;
+ typedef ptrdiff_t difference_type;
+ typedef const _Tp* pointer;
+ typedef const _Tp& reference;
+ };
+
+
+ /**
+ * This function is not a part of the C++ standard but is syntactic
+ * sugar for internal library use only.
+ */
+ template<typename _Iter>
+ inline _GLIBCXX_CONSTEXPR
+ typename iterator_traits<_Iter>::iterator_category
+ __iterator_category(const _Iter&)
+ { return typename iterator_traits<_Iter>::iterator_category(); }
+
+ //@}
+
+
+ template<typename _Iter>
+ using __iterator_category_t
+ = typename iterator_traits<_Iter>::iterator_category;
+
+ template<typename _InIter>
+ using _RequireInputIter =
+ __enable_if_t<is_convertible<__iterator_category_t<_InIter>,
+ input_iterator_tag>::value>;
+
+ template<typename _It,
+ typename _Cat = __iterator_category_t<_It>>
+ struct __is_random_access_iter
+ : is_base_of<random_access_iterator_tag, _Cat>
+ {
+ typedef is_base_of<random_access_iterator_tag, _Cat> _Base;
+ enum { __value = _Base::value };
+ };
+
+
+
+
+
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// Functions used by iterators -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1996-1998
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file bits/stl_iterator_base_funcs.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iterator}
+ *
+ * This file contains all of the general iterator-related utility
+ * functions, such as distance() and advance().
+ */
+
+
+#define _STL_ITERATOR_BASE_FUNCS_H 1
+
+
+
+// Concept-checking control -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/concept_check.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iterator}
+ */
+
+
+#define _CONCEPT_CHECK_H 1
+
+
+
+
+
+// All places in libstdc++-v3 where these are used, or /might/ be used, or
+// don't need to be used, or perhaps /should/ be used, are commented with
+// "concept requirements" (and maybe some more text). So grep like crazy
+// if you're looking for additional places to use these.
+
+// Concept-checking code is off by default unless users turn it on via
+// configure options or editing c++config.h.
+// It is not supported for freestanding implementations.
+
+
+
+#define __glibcxx_function_requires(...)
+#define __glibcxx_class_requires(_a,_b)
+#define __glibcxx_class_requires2(_a,_b,_c)
+#define __glibcxx_class_requires3(_a,_b,_c,_d)
+#define __glibcxx_class_requires4(_a,_b,_c,_d,_e)
+
+
+// Debugging support implementation -*- C++ -*-
+
+// Copyright (C) 2003-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file debug/assertions.h
+ * This file is a GNU debug extension to the Standard C++ Library.
+ */
+
+
+#define _GLIBCXX_DEBUG_ASSERTIONS_H 1
+
+
+
+#define _GLIBCXX_DEBUG_ASSERT(_Condition)
+#define _GLIBCXX_DEBUG_PEDASSERT(_Condition)
+#define _GLIBCXX_DEBUG_ONLY(_Statement)
+
+
+
+
+#define __glibcxx_requires_non_empty_range(_First,_Last)
+#define __glibcxx_requires_nonempty()
+#define __glibcxx_requires_subscript(_N)
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+_GLIBCXX_BEGIN_NAMESPACE_CONTAINER
+ // Forward declaration for the overloads of __distance.
+ template <typename> struct _List_iterator;
+ template <typename> struct _List_const_iterator;
+_GLIBCXX_END_NAMESPACE_CONTAINER
+
+ template<typename _InputIterator>
+ inline _GLIBCXX14_CONSTEXPR
+ typename iterator_traits<_InputIterator>::difference_type
+ __distance(_InputIterator __first, _InputIterator __last,
+ input_iterator_tag)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
+
+ typename iterator_traits<_InputIterator>::difference_type __n = 0;
+ while (__first != __last)
+ {
+ ++__first;
+ ++__n;
+ }
+ return __n;
+ }
+
+ template<typename _RandomAccessIterator>
+ inline _GLIBCXX14_CONSTEXPR
+ typename iterator_traits<_RandomAccessIterator>::difference_type
+ __distance(_RandomAccessIterator __first, _RandomAccessIterator __last,
+ random_access_iterator_tag)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_RandomAccessIteratorConcept<
+ _RandomAccessIterator>)
+ return __last - __first;
+ }
+
+
+ // Forward declaration because of the qualified call in distance.
+ template<typename _Tp>
+ ptrdiff_t
+ __distance(_GLIBCXX_STD_C::_List_iterator<_Tp>,
+ _GLIBCXX_STD_C::_List_iterator<_Tp>,
+ input_iterator_tag);
+
+ template<typename _Tp>
+ ptrdiff_t
+ __distance(_GLIBCXX_STD_C::_List_const_iterator<_Tp>,
+ _GLIBCXX_STD_C::_List_const_iterator<_Tp>,
+ input_iterator_tag);
+
+
+ /**
+ * @brief A generalization of pointer arithmetic.
+ * @param __first An input iterator.
+ * @param __last An input iterator.
+ * @return The distance between them.
+ *
+ * Returns @c n such that __first + n == __last. This requires
+ * that @p __last must be reachable from @p __first. Note that @c
+ * n may be negative.
+ *
+ * For random access iterators, this uses their @c + and @c - operations
+ * and are constant time. For other %iterator classes they are linear time.
+ */
+ template<typename _InputIterator>
+ inline _GLIBCXX17_CONSTEXPR
+ typename iterator_traits<_InputIterator>::difference_type
+ distance(_InputIterator __first, _InputIterator __last)
+ {
+ // concept requirements -- taken care of in __distance
+ return std::__distance(__first, __last,
+ std::__iterator_category(__first));
+ }
+
+ template<typename _InputIterator, typename _Distance>
+ inline _GLIBCXX14_CONSTEXPR void
+ __advance(_InputIterator& __i, _Distance __n, input_iterator_tag)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
+ __glibcxx_assert(__n >= 0);
+ while (__n--)
+ ++__i;
+ }
+
+ template<typename _BidirectionalIterator, typename _Distance>
+ inline _GLIBCXX14_CONSTEXPR void
+ __advance(_BidirectionalIterator& __i, _Distance __n,
+ bidirectional_iterator_tag)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_BidirectionalIteratorConcept<
+ _BidirectionalIterator>)
+ if (__n > 0)
+ while (__n--)
+ ++__i;
+ else
+ while (__n++)
+ --__i;
+ }
+
+ template<typename _RandomAccessIterator, typename _Distance>
+ inline _GLIBCXX14_CONSTEXPR void
+ __advance(_RandomAccessIterator& __i, _Distance __n,
+ random_access_iterator_tag)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_RandomAccessIteratorConcept<
+ _RandomAccessIterator>)
+ if (__builtin_constant_p(__n) && __n == 1)
+ ++__i;
+ else if (__builtin_constant_p(__n) && __n == -1)
+ --__i;
+ else
+ __i += __n;
+ }
+
+ /**
+ * @brief A generalization of pointer arithmetic.
+ * @param __i An input iterator.
+ * @param __n The @a delta by which to change @p __i.
+ * @return Nothing.
+ *
+ * This increments @p i by @p n. For bidirectional and random access
+ * iterators, @p __n may be negative, in which case @p __i is decremented.
+ *
+ * For random access iterators, this uses their @c + and @c - operations
+ * and are constant time. For other %iterator classes they are linear time.
+ */
+ template<typename _InputIterator, typename _Distance>
+ inline _GLIBCXX17_CONSTEXPR void
+ advance(_InputIterator& __i, _Distance __n)
+ {
+ // concept requirements -- taken care of in __advance
+ typename iterator_traits<_InputIterator>::difference_type __d = __n;
+ std::__advance(__i, __d, std::__iterator_category(__i));
+ }
+
+
+
+ template<typename _InputIterator>
+ inline _GLIBCXX17_CONSTEXPR _InputIterator
+ next(_InputIterator __x, typename
+ iterator_traits<_InputIterator>::difference_type __n = 1)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_InputIteratorConcept<_InputIterator>)
+ std::advance(__x, __n);
+ return __x;
+ }
+
+ template<typename _BidirectionalIterator>
+ inline _GLIBCXX17_CONSTEXPR _BidirectionalIterator
+ prev(_BidirectionalIterator __x, typename
+ iterator_traits<_BidirectionalIterator>::difference_type __n = 1)
+ {
+ // concept requirements
+ __glibcxx_function_requires(_BidirectionalIteratorConcept<
+ _BidirectionalIterator>)
+ std::advance(__x, -__n);
+ return __x;
+ }
+
+
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// Iterators -*- C++ -*-
+
+// Copyright (C) 2001-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/*
+ *
+ * Copyright (c) 1994
+ * Hewlett-Packard Company
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Hewlett-Packard Company makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ *
+ *
+ * Copyright (c) 1996-1998
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, distribute and sell this software
+ * and its documentation for any purpose is hereby granted without fee,
+ * provided that the above copyright notice appear in all copies and
+ * that both that copyright notice and this permission notice appear
+ * in supporting documentation. Silicon Graphics makes no
+ * representations about the suitability of this software for any
+ * purpose. It is provided "as is" without express or implied warranty.
+ */
+
+/** @file bits/stl_iterator.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{iterator}
+ *
+ * This file implements reverse_iterator, back_insert_iterator,
+ * front_insert_iterator, insert_iterator, __normal_iterator, and their
+ * supporting functions and overloaded operators.
+ */
+
+
+#define _STL_ITERATOR_H 1
+
+
+
+
+// Pointer Traits -*- C++ -*-
+
+// Copyright (C) 2011-2021 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file bits/ptr_traits.h
+ * This is an internal header file, included by other library headers.
+ * Do not attempt to use it directly. @headername{memory}
+ */
+
+
+#define _PTR_TRAITS_H 1
+
+
+
+
+
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ class __undefined;
+
+ // Given Template<T, ...> return T, otherwise invalid.
+ template<typename _Tp>
+ struct __get_first_arg
+ { using type = __undefined; };
+
+ template<template<typename, typename...> class _Template, typename _Tp,
+ typename... _Types>
+ struct __get_first_arg<_Template<_Tp, _Types...>>
+ { using type = _Tp; };
+
+ template<typename _Tp>
+ using __get_first_arg_t = typename __get_first_arg<_Tp>::type;
+
+ // Given Template<T, ...> and U return Template<U, ...>, otherwise invalid.
+ template<typename _Tp, typename _Up>
+ struct __replace_first_arg
+ { };
+
+ template<template<typename, typename...> class _Template, typename _Up,
+ typename _Tp, typename... _Types>
+ struct __replace_first_arg<_Template<_Tp, _Types...>, _Up>
+ { using type = _Template<_Up, _Types...>; };
+
+ template<typename _Tp, typename _Up>
+ using __replace_first_arg_t = typename __replace_first_arg<_Tp, _Up>::type;
+
+ template<typename _Tp>
+ using __make_not_void
+ = typename conditional<is_void<_Tp>::value, __undefined, _Tp>::type;
+
+ /**
+ * @brief Uniform interface to all pointer-like types
+ * @ingroup pointer_abstractions
+ */
+ template<typename _Ptr>
+ struct pointer_traits
+ {
+ private:
+ template<typename _Tp>
+ using __element_type = typename _Tp::element_type;
+
+ template<typename _Tp>
+ using __difference_type = typename _Tp::difference_type;
+
+ template<typename _Tp, typename _Up, typename = void>
+ struct __rebind : __replace_first_arg<_Tp, _Up> { };
+
+ template<typename _Tp, typename _Up>
+ struct __rebind<_Tp, _Up, __void_t<typename _Tp::template rebind<_Up>>>
+ { using type = typename _Tp::template rebind<_Up>; };
+
+ public:
+ /// The pointer type.
+ using pointer = _Ptr;
+
+ /// The type pointed to.
+ using element_type
+ = __detected_or_t<__get_first_arg_t<_Ptr>, __element_type, _Ptr>;
+
+ /// The type used to represent the difference between two pointers.
+ using difference_type
+ = __detected_or_t<ptrdiff_t, __difference_type, _Ptr>;
+
+ /// A pointer to a different type.
+ template<typename _Up>
+ using rebind = typename __rebind<_Ptr, _Up>::type;
+
+ static _Ptr
+ pointer_to(__make_not_void<element_type>& __e)
+ { return _Ptr::pointer_to(__e); }
+
+ static_assert(!is_same<element_type, __undefined>::value,
+ "pointer type defines element_type or is like SomePointer<T, Args>");
+ };
+
+ /**
+ * @brief Partial specialization for built-in pointers.
+ * @ingroup pointer_abstractions
+ */
+ template<typename _Tp>
+ struct pointer_traits<_Tp*>
+ {
+ /// The pointer type
+ typedef _Tp* pointer;
+ /// The type pointed to
+ typedef _Tp element_type;
+ /// Type used to represent the difference between two pointers
+ typedef ptrdiff_t difference_type;
+
+ template<typename _Up>
+ using rebind = _Up*;
+
+ /**
+ * @brief Obtain a pointer to an object
+ * @param __r A reference to an object of type @c element_type
+ * @return @c addressof(__r)
+ */
+ static _GLIBCXX20_CONSTEXPR pointer
+ pointer_to(__make_not_void<element_type>& __r) noexcept
+ { return std::addressof(__r); }
+ };
+
+ /// Convenience alias for rebinding pointers.
+ template<typename _Ptr, typename _Tp>
+ using __ptr_rebind = typename pointer_traits<_Ptr>::template rebind<_Tp>;
+
+ template<typename _Tp>
+ constexpr _Tp*
+ __to_address(_Tp* __ptr) noexcept
+ {
+ static_assert(!std::is_function<_Tp>::value, "not a function pointer");
+ return __ptr;
+ }
+
+
+ template<typename _Ptr>
+ constexpr typename std::pointer_traits<_Ptr>::element_type*
+ __to_address(const _Ptr& __ptr)
+ { return std::__to_address(__ptr.operator->()); }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace std
+
+
+
+
+
+
+
+
+
+
+
+
+#define __cpp_lib_array_constexpr 201803L
+
+
+
+
+
+
+
+
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @addtogroup iterators
+ * @{
+ */
+
+
+ // 24.4.1 Reverse iterators
+ /**
+ * Bidirectional and random access iterators have corresponding reverse
+ * %iterator adaptors that iterate through the data structure in the
+ * opposite direction. They have the same signatures as the corresponding
+ * iterators. The fundamental relation between a reverse %iterator and its
+ * corresponding %iterator @c i is established by the identity:
+ * @code
+ * &*(reverse_iterator(i)) == &*(i - 1)
+ * @endcode
+ *
+ * <em>This mapping is dictated by the fact that while there is always a
+ * pointer past the end of an array, there might not be a valid pointer
+ * before the beginning of an array.</em> [24.4.1]/1,2
+ *
+ * Reverse iterators can be tricky and surprising at first. Their
+ * semantics make sense, however, and the trickiness is a side effect of
+ * the requirement that the iterators must be safe.
+ */
+ template<typename _Iterator>
+ class reverse_iterator
+ : public iterator<typename iterator_traits<_Iterator>::iterator_category,
+ typename iterator_traits<_Iterator>::value_type,
+ typename iterator_traits<_Iterator>::difference_type,
+ typename iterator_traits<_Iterator>::pointer,
+ typename iterator_traits<_Iterator>::reference>
+ {
+ template<typename _Iter>
+ friend class reverse_iterator;
+
+
+
+
+
+
+
+
+
+ protected:
+ _Iterator current;
+
+ typedef iterator_traits<_Iterator> __traits_type;
+
+ public:
+ typedef _Iterator iterator_type;
+ typedef typename __traits_type::difference_type difference_type;
+ typedef typename __traits_type::pointer pointer;
+ typedef typename __traits_type::reference reference;
+
+
+ /**
+ * The default constructor value-initializes member @p current.
+ * If it is a pointer, that means it is zero-initialized.
+ */
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 235 No specification of default ctor for reverse_iterator
+ // 1012. reverse_iterator default ctor should value initialize
+ _GLIBCXX17_CONSTEXPR
+ reverse_iterator() : current() { }
+
+ /**
+ * This %iterator will move in the opposite direction that @p x does.
+ */
+ explicit _GLIBCXX17_CONSTEXPR
+ reverse_iterator(iterator_type __x) : current(__x) { }
+
+ /**
+ * The copy constructor is normal.
+ */
+ _GLIBCXX17_CONSTEXPR
+ reverse_iterator(const reverse_iterator& __x)
+ : current(__x.current) { }
+
+
+ reverse_iterator& operator=(const reverse_iterator&) = default;
+
+
+ /**
+ * A %reverse_iterator across other types can be copied if the
+ * underlying %iterator can be converted to the type of @c current.
+ */
+ template<typename _Iter>
+
+
+
+ _GLIBCXX17_CONSTEXPR
+ reverse_iterator(const reverse_iterator<_Iter>& __x)
+ : current(__x.current) { }
+
+
+ template<typename _Iter>
+
+
+
+
+ _GLIBCXX17_CONSTEXPR
+ reverse_iterator&
+ operator=(const reverse_iterator<_Iter>& __x)
+ {
+ current = __x.current;
+ return *this;
+ }
+
+
+ /**
+ * @return @c current, the %iterator used for underlying work.
+ */
+ _GLIBCXX17_CONSTEXPR iterator_type
+ base() const
+ { return current; }
+
+ /**
+ * @return A reference to the value at @c --current
+ *
+ * This requires that @c --current is dereferenceable.
+ *
+ * @warning This implementation requires that for an iterator of the
+ * underlying iterator type, @c x, a reference obtained by
+ * @c *x remains valid after @c x has been modified or
+ * destroyed. This is a bug: http://gcc.gnu.org/PR51823
+ */
+ _GLIBCXX17_CONSTEXPR reference
+ operator*() const
+ {
+ _Iterator __tmp = current;
+ return *--__tmp;
+ }
+
+ /**
+ * @return A pointer to the value at @c --current
+ *
+ * This requires that @c --current is dereferenceable.
+ */
+ _GLIBCXX17_CONSTEXPR pointer
+ operator->() const
+
+
+
+
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 1052. operator-> should also support smart pointers
+ _Iterator __tmp = current;
+ --__tmp;
+ return _S_to_pointer(__tmp);
+ }
+
+ /**
+ * @return @c *this
+ *
+ * Decrements the underlying iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator&
+ operator++()
+ {
+ --current;
+ return *this;
+ }
+
+ /**
+ * @return The original value of @c *this
+ *
+ * Decrements the underlying iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator
+ operator++(int)
+ {
+ reverse_iterator __tmp = *this;
+ --current;
+ return __tmp;
+ }
+
+ /**
+ * @return @c *this
+ *
+ * Increments the underlying iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator&
+ operator--()
+ {
+ ++current;
+ return *this;
+ }
+
+ /**
+ * @return A reverse_iterator with the previous value of @c *this
+ *
+ * Increments the underlying iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator
+ operator--(int)
+ {
+ reverse_iterator __tmp = *this;
+ ++current;
+ return __tmp;
+ }
+
+ /**
+ * @return A reverse_iterator that refers to @c current - @a __n
+ *
+ * The underlying iterator must be a Random Access Iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator
+ operator+(difference_type __n) const
+ { return reverse_iterator(current - __n); }
+
+ /**
+ * @return *this
+ *
+ * Moves the underlying iterator backwards @a __n steps.
+ * The underlying iterator must be a Random Access Iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator&
+ operator+=(difference_type __n)
+ {
+ current -= __n;
+ return *this;
+ }
+
+ /**
+ * @return A reverse_iterator that refers to @c current - @a __n
+ *
+ * The underlying iterator must be a Random Access Iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator
+ operator-(difference_type __n) const
+ { return reverse_iterator(current + __n); }
+
+ /**
+ * @return *this
+ *
+ * Moves the underlying iterator forwards @a __n steps.
+ * The underlying iterator must be a Random Access Iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reverse_iterator&
+ operator-=(difference_type __n)
+ {
+ current += __n;
+ return *this;
+ }
+
+ /**
+ * @return The value at @c current - @a __n - 1
+ *
+ * The underlying iterator must be a Random Access Iterator.
+ */
+ _GLIBCXX17_CONSTEXPR reference
+ operator[](difference_type __n) const
+ { return *(*this + __n); }
+
+
+ private:
+ template<typename _Tp>
+ static _GLIBCXX17_CONSTEXPR _Tp*
+ _S_to_pointer(_Tp* __p)
+ { return __p; }
+
+ template<typename _Tp>
+ static _GLIBCXX17_CONSTEXPR pointer
+ _S_to_pointer(_Tp __t)
+ { return __t.operator->(); }
+ };
+
+ //@{
+ /**
+ * @param __x A %reverse_iterator.
+ * @param __y A %reverse_iterator.
+ * @return A simple bool.
+ *
+ * Reverse iterators forward comparisons to their underlying base()
+ * iterators.
+ *
+ */
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator==(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+ { return __x.base() == __y.base(); }
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator<(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+ { return __y.base() < __x.base(); }
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator!=(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+ { return !(__x == __y); }
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator>(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+ { return __y < __x; }
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator<=(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+ { return !(__y < __x); }
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator>=(const reverse_iterator<_Iterator>& __x,
+ const reverse_iterator<_Iterator>& __y)
+ { return !(__x < __y); }
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 280. Comparison of reverse_iterator to const reverse_iterator.
+
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator==(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ { return __x.base() == __y.base(); }
+
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator<(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ { return __x.base() > __y.base(); }
+
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator!=(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ { return __x.base() != __y.base(); }
+
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator>(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ { return __x.base() < __y.base(); }
+
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator<=(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ { return __x.base() >= __y.base(); }
+
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR bool
+ operator>=(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ { return __x.base() <= __y.base(); }
+ //@}
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 685. reverse_iterator/move_iterator difference has invalid signatures
+ template<typename _IteratorL, typename _IteratorR>
+ inline _GLIBCXX17_CONSTEXPR auto
+ operator-(const reverse_iterator<_IteratorL>& __x,
+ const reverse_iterator<_IteratorR>& __y)
+ -> decltype(__y.base() - __x.base())
+ { return __y.base() - __x.base(); }
+
+
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Iterator>
+ operator+(typename reverse_iterator<_Iterator>::difference_type __n,
+ const reverse_iterator<_Iterator>& __x)
+ { return reverse_iterator<_Iterator>(__x.base() - __n); }
+
+
+ // Same as C++14 make_reverse_iterator but used in C++11 mode too.
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Iterator>
+ __make_reverse_iterator(_Iterator __i)
+ { return reverse_iterator<_Iterator>(__i); }
+
+
+#define __cpp_lib_make_reverse_iterator 201402
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // DR 2285. make_reverse_iterator
+ /// Generator function for reverse_iterator.
+ template<typename _Iterator>
+ inline _GLIBCXX17_CONSTEXPR reverse_iterator<_Iterator>
+ make_reverse_iterator(_Iterator __i)
+ { return reverse_iterator<_Iterator>(__i); }
+
+
+
+
+
+
+
+
+
+
+ template<typename _Iterator>
+ _GLIBCXX20_CONSTEXPR
+ auto
+ __niter_base(reverse_iterator<_Iterator> __it)
+ -> decltype(__make_reverse_iterator(__niter_base(__it.base())))
+ { return __make_reverse_iterator(__niter_base(__it.base())); }
+
+ template<typename _Iterator>
+ struct __is_move_iterator<reverse_iterator<_Iterator> >
+ : __is_move_iterator<_Iterator>
+ { };
+
+ template<typename _Iterator>
+ _GLIBCXX20_CONSTEXPR
+ auto
+ __miter_base(reverse_iterator<_Iterator> __it)
+ -> decltype(__make_reverse_iterator(__miter_base(__it.base())))
+ { return __make_reverse_iterator(__miter_base(__it.base())); }
+
+
+ // 24.4.2.2.1 back_insert_iterator
+ /**
+ * @brief Turns assignment into insertion.
+ *
+ * These are output iterators, constructed from a container-of-T.
+ * Assigning a T to the iterator appends it to the container using
+ * push_back.
+ *
+ * Tip: Using the back_inserter function to create these iterators can
+ * save typing.
+ */
+ template<typename _Container>
+ class back_insert_iterator
+ : public iterator<output_iterator_tag, void, void, void, void>
+ {
+ protected:
+ _Container* container;
+
+ public:
+ /// A nested typedef for the type of whatever container you used.
+ typedef _Container container_type;
+
+
+
+
+
+
+ /// The only way to create this %iterator is with a container.
+ explicit _GLIBCXX20_CONSTEXPR
+ back_insert_iterator(_Container& __x)
+ : container(std::__addressof(__x)) { }
+
+ /**
+ * @param __value An instance of whatever type
+ * container_type::const_reference is; presumably a
+ * reference-to-const T for container<T>.
+ * @return This %iterator, for chained operations.
+ *
+ * This kind of %iterator doesn't really have a @a position in the
+ * container (you can think of the position as being permanently at
+ * the end, if you like). Assigning a value to the %iterator will
+ * always append the value to the end of the container.
+ */
+ _GLIBCXX20_CONSTEXPR
+ back_insert_iterator&
+ operator=(const typename _Container::value_type& __value)
+ {
+ container->push_back(__value);
+ return *this;
+ }
+
+ _GLIBCXX20_CONSTEXPR
+ back_insert_iterator&
+ operator=(typename _Container::value_type&& __value)
+ {
+ container->push_back(std::mov[...]
[diff truncated at 524288 bytes]
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