1 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
4 * include/bits/fs_path.h (path::_S_to_string): Move to
5 namespace-scope and rename to ...
6 (__detail::__string_from_range): ... this.
7 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
8 convert a char sequence containing UTF-8 to wstring.
9 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
10 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
11 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
12 __string_from_range to obtain a contiguous range and
13 __wstr_from_utf8 to obtain a wide string.
14 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
15 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
17 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
20 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
22 * testsuite/util/testsuite_iterators.h:
23 (input_iterator_wrapper::operator++(int)): Return proxy object.
25 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
27 * doc/xml/manual/evolution.xml: Document deprecation of
28 __is_nullptr_t and removal of std::allocator members.
29 * doc/html/manual/api.html: Regenerate.
31 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
33 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
34 * doc/xml/manual/evolution.xml: Likewise.
35 * doc/html/manual/api.html: Regenerate.
36 * doc/html/manual/containers.html: Regenerate.
38 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
40 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
41 * doc/html/faq.html: Regenerate.
43 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
45 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
48 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
50 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
51 www.cs.princeton.edu to https.
52 * doc/html/manual/policy_data_structures.html: Regenerate.
54 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
56 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
59 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
62 * configure: Regenerated.
64 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
67 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
68 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
69 (unordered_map<>::insert_or_assign): Adapt.
71 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
74 * include/bits/atomic_base.h (__atomic_impl::load): Add
75 cv-qualifiers to parameter so that _Tp is deduced as the
77 * testsuite/29_atomics/atomic_float/95282.cc: New test.
79 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
82 * include/std/ranges (transform_view::_Sentinel): Allow hidden
83 friends to work with _Iterator<true> and _Iterator<false>.
84 (join_view::_Sentinel): Likewise.
85 * testsuite/std/ranges/adaptors/95322.cc: New test.
87 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
90 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
91 operators to use the correct operations on the underlying
93 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
95 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
97 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
99 2020-05-26 Patrick Palka <ppalka@redhat.com>
102 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
103 Remove and instead define it ...
104 (common_iterator::_Proxy): ... here.
105 (common_iterator::operator->): Use it.
106 * testsuite/24_iterators/common_iterator/2.cc: New test.
107 * testsuite/std/ranges/adaptors/95322.cc: New test.
109 2020-05-23 Patrick Palka <ppalka@redhat.com>
112 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
113 dg-additional-options. Avoid unused-but-set-variable warning.
115 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
118 * include/debug/helper_functions.h (__get_distance): Only declare
119 as a constexpr function for C++14 and up.
120 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
122 * include/bits/fs_path.h (__detail::_S_range_begin)
123 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
124 overloaded function template __detail::__effective_range.
125 (__detail::__effective_range): New overloaded function template to
126 create a basic_string or basic_string_view for an effective range.
127 (__detail::__value_type_is_char): Use __detail::__effective_range.
128 Do not use remove_const on value type.
129 (__detail::__value_type_is_char_or_char8_t): Likewise.
130 (path::path(const Source&, format))
131 (path::path(const Source&, const locale&))
132 (path::operator/=(const Source&), path::append(const Source&))
133 (path::concat(const Source&)): Use __detail::__effective_range.
134 (path::_S_to_string(InputIterator, InputIterator)): New function
135 template to create a string view if possible, or string otherwise.
136 (path::_S_convert): Add overloads that convert a string returned
137 by __detail::__effective_range. Use if-constexpr to inline conversion
138 logic from all overloads of _Cvt::_S_convert.
139 (path::_S_convert_loc): Add overload that converts a string. Use
140 _S_to_string to avoid allocation when possible.
141 (path::_Cvt): Remove.
142 (path::operator+=(CharT)): Remove indirection through path::concat.
143 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
144 overload for non-const pointers, to avoid constructing a std::string.
145 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
146 compilation with call to _S_convert.
148 * include/bits/fs_path.h (__detail::_S_range_begin)
149 (__detail::_S_range_end): Remove unintentional static specifiers.
150 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
151 (__detail::_S_range_end): Likewise.
153 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
154 Replace alias template with variable template. Don't remove const.
155 (filesystem::__detail::__is_path_src): Replace overloaded function
156 template with variable template and specializations.
157 (filesystem::__detail::__is_path_iter_src): Replace alias template
159 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
161 (filesystem::__detail::_Path2): New alias template for checking
162 InputIterator requirements.
163 (filesystem::__detail::__constructible_from): Remove.
164 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
165 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
166 constructor arguments of void and void* types.
168 2020-05-21 Matthias Kretz <kretz@kde.org>
170 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
171 allowing runtest to work without arguments.
172 * testsuite/Makefile.in: Regenerate.
174 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
177 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
178 Reorder constraints to avoid recursion when constructors use
179 iterator_traits (LWG 3420).
180 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
182 * include/experimental/socket (basic_socket::is_open()
183 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
185 * include/experimental/bits/net.h (__endpoint, __protocol)
186 (__acceptable_protocol, __inet_protocol): New concepts.
187 (__detail::__is_endpoint): Move trait from <experimental/socket>.
188 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
190 (__endpoint, __protocol, __acceptable_protocol): New variable
192 * include/experimental/socket (__is_endpoint): Move to net.h header.
193 (basic_socket, basic_socket_acceptor): Check requirements.
195 * include/experimental/executor (use_future_t::use_future_t()): Fix
196 incorrect noexcept-specifier.
197 * include/experimental/internet (basic_resolver_results): Adjust
199 * include/experimental/socket (__basic_socket_impl::release): Add
201 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
203 (basic_socket::release(), basic_socket::release(error_code&)): Add
204 missing member functions.
205 (basic_socket::is_open()): Add nodiscard attribute.
206 (basic_socket::close(error_code&)): Pass argument to base function.
207 (basic_socket_acceptor::release())
208 (basic_socket_acceptor::release(error_code&)): Add missing member
210 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
211 (basic_socket_streambuf::error()): Add noexcept.
212 (basic_socket_iostream::error()): Likewise.
213 * testsuite/experimental/net/socket/basic_socket.cc: New test.
215 * include/experimental/buffer: Replace typedefs with
217 * include/experimental/executor: Likewise.
218 * include/experimental/internet: Likewise.
219 * include/experimental/socket: Likewise.
220 * include/experimental/timer: Likewise.
222 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
225 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
227 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
229 (random_device::_M_init): Use __x86_rdseed_rdrand when both
230 instructions are available.
231 * testsuite/26_numerics/random/random_device/94087.cc: New test.
233 2020-05-19 Patrick Palka <ppalka@redhat.com>
236 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
238 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
240 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
243 * configure: Regenerated.
245 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
247 * configure: Regenerated.
249 2020-05-13 Alexandre Oliva <oliva@adacore.com>
252 * include/experimental/memory_resource
253 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
254 x86-vxworks as on x86-solaris.
255 (__resource_adaptor_imp::do_deallocate): Likewise.
256 * testsuite/experimental/memory_resource/new_delete_resource.cc:
258 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
259 (test03): Drop max-align test for char-aligned alloc.
261 2020-05-08 Ulrich Drepper <drepper@redhat.com>
263 * include/bits/atomic_base.h (atomic_flag): Implement test member
265 * include/std/version: Define __cpp_lib_atomic_flag_test.
266 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
267 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
269 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
271 PR libstdc++/94971 (partial)
272 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
273 std::sample using macro to work in parallel mode.
274 (__sort_fn): Likewise for std::sort.
275 (ranges::__nth_element_fn): Likewise for std::nth_element.
276 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
277 Likewise for std::__min_cmp.
278 * include/parallel/algobase.h (lexicographical_compare_three_way):
279 Add to namespace std::__parallel.
282 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
283 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
284 (_UnguardedIterator::operator _RAIter): Add const qualifier.
285 (operator<(_GuardedIterator&, _GuardedIterator&)
286 (operator<=(_GuardedIterator&, _GuardedIterator&)
287 (operator<(_UnguardedIterator&, _UnguardedIterator&)
288 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
289 parameters to const references.
291 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
293 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
294 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
296 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
298 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
299 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
300 * include/bits/stl_bvector.h (__fill_bvector): Move outside
301 _GLIBCXX_STD_C namespace.
302 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
304 (__fill_a1): ...this.
305 * testsuite/25_algorithms/fill/bvector/1.cc: New.
307 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
309 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
311 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
313 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
314 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
316 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
317 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
320 2020-05-06 Martin Liska <mliska@suse.cz>
323 2020-05-05 Martin Liska <mliska@suse.cz>
325 * include/parallel/multiway_merge.h:
326 Use const for _Compare template argument.
328 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
330 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
331 versions for GCC 9.[123] and 10.1 releases.
332 * doc/html/*: Regenerate.
334 2020-05-06 Jakub Jelinek <jakub@redhat.com>
336 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
337 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
338 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
339 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
340 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
341 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
342 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
344 2020-05-05 Martin Liska <mliska@suse.cz>
347 * include/parallel/multiway_merge.h:
348 Use const for _Compare template argument.
350 2020-05-04 Fangrui Song <maskray@google.com>
352 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
354 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
356 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
357 * doc/html/*: Regenerate.
360 * src/c++17/memory_resource.cc
361 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
364 2020-05-04 Nathan Sidwell <nathan@acm.org>
367 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
368 ptrdiff_t before negation, to show intent more clearly.
370 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
373 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
374 Add comment about single-threaded behaviour.
375 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
376 class member access out of loop.
377 (synchronized_pool_resource::synchronized_pool_resource())
378 (synchronized_pool_resource::~synchronized_pool_resource())
379 (synchronized_pool_resource::release()): Check __gthread_active_p
380 before creating and/or deleting the thread-specific data key.
381 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
383 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
384 path for single-threaded case.
385 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
386 Likewise. Return if unable to find a pool that owns the allocation.
387 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
389 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
391 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
394 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
397 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
398 usable in constant expressions.
399 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
402 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
405 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
407 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
408 Patrick Palka <ppalka@redhat.com>
411 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
412 Add trait to determine return type and an alias for it.
413 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
415 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
416 the result of ranges::iter_move.
417 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
418 instead of checking the result of ranges::iter_move.
419 * testsuite/24_iterators/customization_points/92894.cc: New test.
420 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
422 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
425 * include/std/type_traits (__is_complete_or_unbounded): Replace
427 * testsuite/17_intro/badnames.cc: New test.
429 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
432 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
433 (allocator_traits::_S_destroy)
434 (allocator_traits<allocator<T>>::construct): Use traits in
436 * include/bits/allocator.h (allocator<void>::construct)
437 (allocator<void>::destroy): Likewise.
438 * include/ext/malloc_allocator.h (malloc_allocator::construct)
439 (malloc_allocator::destroy): Likewise.
440 * include/ext/new_allocator.h (new_allocator::construct)
441 (new_allocator::destroy): Likewise.
442 * testsuite/20_util/allocator/89510.cc: New test.
443 * testsuite/ext/malloc_allocator/89510.cc: New test.
444 * testsuite/ext/new_allocator/89510.cc: New test.
446 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
449 * include/bits/basic_string.tcc: Update comment about explicit
452 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
455 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
456 Remove non-standard macro.
457 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
458 to indicate P1032R1 support.
459 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
460 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
461 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
462 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
463 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
464 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
465 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
467 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
468 * testsuite/21_strings/basic_string_view/operations/copy/char/
469 constexpr.cc: Likewise.
470 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
473 * include/bits/alloc_traits.h (_S_construct): Restore placement
474 new-expression for C++11/14/17 and call std::construct_at directly
476 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
477 function returning void.
478 * testsuite/20_util/specialized_algorithms/
479 uninitialized_value_construct/94831.cc: New test.
480 * testsuite/23_containers/vector/cons/94831.cc: New test.
482 2020-04-28 Patrick Palka <ppalka@redhat.com>
484 LWG 3433 subrange::advance(n) has UB when n < 0
485 * include/std/ranges (subrange::prev): Fix typo.
486 (subrange::advance): Handle a negative argument as per the proposed
487 resolution of LWG 3433.
488 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
490 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
491 Iain Sandoe <iain@sandoe.co.uk>
494 * include/std/coroutine: Implement handing for non-
495 class coroutine return types.
497 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
499 * include/experimental/executor (service_already_exists): Make default
500 constructor public (LWG 3414).
501 * testsuite/experimental/net/execution_context/make_service.cc: Check
502 the service_already_exists can be default constructed.
504 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
505 Jonathan Wakely <jwakely@redhat.com>
509 * include/std/any (any): Rename template parameters for consistency
511 (any::_Decay): Rename to _Decay_if_not_any.
512 (any::any(T&&):: Remove is_constructible from constraints. Remove
513 non-standard overload.
514 (any::any(in_place_type_t<T>, Args&&...))
515 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
516 (any::emplace(Args&&...))
517 (any::emplace(initializer_list<U>, Args&&...)):
518 Use decay_t instead of _Decay.
519 * testsuite/20_util/any/cons/90415.cc: New test.
520 * testsuite/20_util/any/cons/92156.cc: New Test.
521 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
523 * testsuite/20_util/any/modifiers/92156.cc: New test.
525 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
527 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
528 * doc/html/*: Regenerate.
530 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
531 value for C++17 to 201803L because P0858R0 is supported for C++17.
532 * include/std/version (__cpp_lib_array_constexpr): Likewise.
533 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
534 Check for value corresponding to P0031R0 features being tested.
535 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
536 Check for value corresponding to P0858R0 features being tested.
538 * include/std/version (__cpp_lib_three_way_comparison): Define for
541 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
543 * include/experimental/net/executor (system_context): Mark
544 system_context::system_context() = delete.
545 * testsuite/experimental/net/executor/1.cc: Add new
546 test to check system_context is not default constructible.
548 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
550 * include/std/coroutine: Update the inline namespace to __n4861.
551 Add the __cpp_lib_coroutine define, set to 201902L.
552 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
554 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
556 * include/std/execution (__cpp_lib_execution): Define to indicate
557 support for P0024R2 and P1001R2.
558 * include/std/version (__cpp_lib_execution): Define.
559 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
560 defined by <algorithm>, move other tests to new tests ...
561 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
562 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
563 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
564 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
566 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
567 different values for C++17 and C++20, to indicate different feature
568 sets. Update value for C++20 to indicate P1032R1 support.
569 * include/std/version (__cpp_lib_array_constexpr): Likewise.
570 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
571 Check feature test macro.
572 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
574 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
576 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
577 in C++17 mode and check feature test macro.
579 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
581 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
582 defined by <utility>.
584 * include/std/functional (__cpp_lib_concepts): Update macro value to
585 indicate P1964R2 support.
586 * include/std/version (__cpp_lib_concepts): Likewise.
587 * testsuite/std/concepts/1.cc: Adjust expected value.
588 * testsuite/std/concepts/2.cc: Likewise.
590 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
591 __cpp_lib_constexpr_functional.
592 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
593 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
595 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
596 indicate P1006R1 support.
597 (__cpp_lib_to_address): Define to indicate P0653R2 support.
598 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
600 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
602 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
604 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
606 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
607 Define to indicate P0339R6 support.
608 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
609 indicate P0457R2 support.
610 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
611 to indicate P0758R1 support.
612 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
613 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
614 * include/std/version (__cpp_lib_atomic_float)
615 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
616 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
617 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
618 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
619 (__cpp_lib_to_address): Define.
620 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
622 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
624 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
626 * include/std/version (__cpp_lib_map_insertion)
627 (__cpp_lib_unordered_map_insertion): Remove.
629 * include/std/condition_variable (__cpp_lib_jthread): Remove
630 redundant definition.
631 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
632 indicate P1869R1 support.
633 * include/std/version (__cpp_lib_jthread): Update value.
634 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
635 for updated macro value.
636 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
638 * testsuite/30_threads/jthread/1.cc: Likewise.
639 * testsuite/30_threads/jthread/2.cc: Likewise.
640 * testsuite/30_threads/stop_token/1.cc: Likewise.
641 * testsuite/30_threads/stop_token/2.cc: Likewise.
643 * testsuite/21_strings/basic_string/erasure.cc: Check for
644 __cpp_lib_erase_if macro.
645 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
647 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
648 * testsuite/23_containers/list/erasure.cc: Likewise.
649 * testsuite/23_containers/map/erasure.cc: Likewise.
650 * testsuite/23_containers/set/erasure.cc: Likewise.
651 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
652 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
653 * testsuite/23_containers/vector/erasure.cc: Likewise.
655 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
657 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
658 to define operator<=>.
659 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
661 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
662 * doc/Makefile.in: Regenerate.
663 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
665 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
666 to the C++11 status table.
667 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
668 proposals with table matching contents of the C++14 standard.
669 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
671 * doc/html/*: Regenerate.
674 * include/std/type_traits (__is_nt_constructible_impl): Add partial
675 specializations for bounded arrays with non-empty initializers.
676 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
678 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
680 * testsuite/lib/libstdc++.exp: Add additional_flags=
681 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
682 compiling with a newer Thread Building Blocks.
684 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
686 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
688 * testsuite/20_util/is_constructible/51185.cc: Make test class a
689 non-aggregate so that the test verifies the same thing in all -std
691 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
692 results for some types when paren-init for aggregates is supported.
694 * include/std/version (__cpp_lib_three_way_comparison): Update value.
695 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
696 (__detail::__synth3way): Add noexcept-specifier.
698 * include/bits/stl_map.h (map): Define operator<=> and remove
700 * include/bits/stl_multimap.h (multimap): Likewise.
701 * include/bits/stl_multiset.h (multiset): Likewise.
702 * include/bits/stl_set.h (set): Likewise.
703 * include/bits/stl_tree.h (_Rb_tree): Likewise.
704 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
705 operator!= for C++20.
706 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
707 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
708 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
709 * include/debug/set.h (__gnu_debug::set): Likewise.
710 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
711 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
712 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
713 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
715 2020-04-20 Matthias Kretz <kretz@kde.org>
717 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
719 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
721 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
722 * include/bits/stl_stack.h (stack): Likewise.
723 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
724 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
726 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
727 Remove redundant operator!= for C++20.
728 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
730 * include/debug/unordered_map (unordered_map, unordered_multimap):
732 * include/debug/unordered_set (unordered_set, unordered_multiset):
736 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
737 redundant assignment in constructor.
739 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
741 * include/std/chrono (duration, time_point): Define operator<=> and
742 remove redundant operator!= for C++20.
743 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
745 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
748 * testsuite/util/native_type/native_priority_queue.hpp: Use
749 allocator_traits to rebind allocator.
751 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
753 * include/bits/forward_list.h (forward_list): Define operator<=> and
754 remove redundant comparison operators for C++20.
755 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
756 * include/bits/stl_deque.h (deque): Likewise.
757 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
758 * include/bits/stl_list.h (list): Likewise.
759 * include/bits/stl_vector.h (vector): Likewise.
760 * include/debug/deque (__gnu_debug::deque): Likewise.
761 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
762 * include/debug/list (__gnu_debug::list): Likewise.
763 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
765 * include/debug/vector (__gnu_debug::vector): Likewise.
766 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
767 operator<=> for C++20.
768 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
769 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
770 * testsuite/23_containers/list/cmp_c++20.cc: New test.
771 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
772 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
774 * include/bits/basic_string.h (basic_string): Define operator<=> and
775 remove redundant comparison operators for C++20.
776 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
777 Add comparison_category members.
778 (__detail::__char_traits_cmp_cat): New helper to get comparison
779 category from char traits class.
780 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
782 (sub_match): Define operator<=> and remove redundant comparison
784 (match_results): Remove redundant operator!= for C++20.
785 * include/std/string_view (basic_string_view): Define operator<=> and
786 remove redundant comparison operators for C++20.
787 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
789 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
791 * testsuite/21_strings/basic_string_view/operations/copy/char/
792 constexpr.cc: Initialize variable.
793 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
794 constexpr.cc: Likewise.
795 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
796 dg-do directive and remove comments showing incorrect signatures.
797 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
799 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
801 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
803 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
805 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
807 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
808 name of unused parameter.
810 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
812 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
813 (directory_entry): Define operator<=> and remove redundant comparison
815 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
816 * include/bits/fs_path.h (path): Define operator<=> and remove
817 redundant comparison operators for C++20.
818 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
819 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
820 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
821 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
823 * include/bits/allocator.h (operator!=): Do not define for C++20.
824 * include/bits/locale_classes.h (operator!=): Likewise.
825 * include/bits/std_function.h (operator==(nullptr_t, const function&))
826 (operator!=(const function&, nullptr_t))
827 (operator!=(nullptr_t, const function&)): Likewise.
828 * include/ext/bitmap_allocator.h (operator!=): Likewise.
829 * include/ext/debug_allocator.h (operator!=): Likewise.
830 * include/ext/extptr_allocator.h (operator!=): Likewise.
831 * include/ext/malloc_allocator.h (operator!=): Likewise.
832 * include/ext/mt_allocator.h (operator!=): Likewise.
833 * include/ext/new_allocator.h (operator!=): Likewise.
834 * include/ext/pool_allocator.h (operator!=): Likewise.
835 * include/ext/throw_allocator.h (operator!=): Likewise.
836 * include/std/bitset (bitset::operator!=): Likewise.
837 * include/std/memory_resource (operator!=): Likewise.
838 * include/std/scoped_allocator (operator!=): Likewise.
840 * include/std/typeindex (operator<=>): Define for C++20.
841 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
843 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
845 * libsupc++/compare (compare_three_way): Fix constraint so that
846 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
847 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
851 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
852 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
853 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
854 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
855 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
856 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
860 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
861 * testsuite/18_support/comparisons/categories/94565.cc: New test.
863 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
865 * include/std/coroutine: Update coroutines builtin define,
868 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
870 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
871 (strong_order, weak_order, partial_order): Replace uses of <=> with
872 compare_three_way function object (LWG 3324).
873 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
874 equality operator so that X satisfies three_way_comparable.
875 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
877 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
879 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
880 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
881 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
882 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
883 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
885 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
887 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
889 * include/std/complex (operator==(const T&, const complex<T>&))
890 (operator!=(const complex<T>&, const complex<T>&))
891 (operator!=(const complex<T>&, const T&))
892 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
893 * testsuite/26_numerics/slice/compare.cc: New test.
895 * include/std/charconv (to_chars_result, from_chars_result): Add
896 defaulted equality comparisons for C++20.
897 * testsuite/20_util/from_chars/compare.cc: New test.
898 * testsuite/20_util/to_chars/compare.cc: New test.
900 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
903 * include/std/charconv (__integer_to_chars_result_type)
904 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
906 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
907 use of std::string_view with std::string.
908 * testsuite/20_util/from_chars/2.cc: Likewise.
909 * testsuite/20_util/to_chars/1.cc: Likewise.
910 * testsuite/20_util/to_chars/2.cc: Likewise.
912 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
915 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
916 usable in constant expressions for C++20.
917 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
918 _GLIBCXX20_CONSTEXPR.
919 (std::char_traits<char>, std::char_traits<wchar_t>)
920 (std::char_traits<char8_t>): Make move, copy and assign usable in
921 constant expressions for C++20.
922 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
923 and copy usable in constant expressions for C++20.
924 * include/std/string_view (basic_string_view::copy): Add
925 _GLIBCXX20_CONSTEXPR.
926 * testsuite/21_strings/basic_string_view/operations/copy/char/
927 constexpr.cc: New test.
928 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
929 constexpr.cc: New test.
931 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
933 * doc/xml/manual/appendix_contributing.xml: Refer to Git
934 documentation instead of Subversion. Switch to https.
935 * doc/html/manual/appendix_contributing.html: Regenerate.
937 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
940 * include/bits/ptr_traits.h (__to_address): Add special case for debug
941 iterators, to avoid dereferenceable check.
942 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
943 * testsuite/20_util/to_address/debug.cc: New test.
945 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
947 * testsuite/experimental/net/execution_context/use_service.cc:
948 Require pthread and gthreads.
950 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
952 * doc/xml/manual/appendix_free.xml: Move "free books" list from
954 * doc/html/manual/appendix_free.html: Regenerate.
956 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
958 Library-side tests for parenthesized aggregate init
963 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
964 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
965 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
966 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
967 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
968 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
969 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
970 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
971 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
973 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
974 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
975 * testsuite/20_util/variant/92878_92947.cc: Likewise.
976 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
978 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
980 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
982 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
984 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
986 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
988 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
989 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
990 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
992 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
993 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
995 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
997 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
999 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1001 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1004 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
1006 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
1007 for changes due to parenthesized aggregate-initialization in C++20.
1008 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
1009 with std::chrono::sys_time in C++20.
1011 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
1012 to constrain C++20 versions of comparison operators. Fix backwards
1013 logic of relational operators.
1014 (move_iterator): Use requires-clause to constrain comparison operators
1015 in C++20. Do not declare non-standard same-type overloads for C++20.
1016 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
1017 of comparisons and check using greedy_ops type.
1018 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
1019 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
1020 main function from compile-only test.
1021 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
1023 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
1025 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
1026 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
1027 C++20 concepts are required.
1028 * include/bits/stl_iterator_base_types.h: Likewise.
1029 * include/std/concepts: Likewise.
1030 * include/std/version: Likewise.
1031 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
1034 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
1035 (reverse_iterator::iterator_category): Define for C++20.
1036 (reverse_iterator): Define comparison operators correctly for C++20.
1037 (__normal_iterator): Add constraints to comparison operators for C++20.
1038 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
1039 overload for input iterators.
1040 (move_iterator): Add constraints to comparison operators for C++20.
1041 Define operator<=> for C++20.
1042 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
1043 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
1044 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
1045 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
1047 * include/bits/iterator_concepts.h (__detail::__decay_copy)
1048 (__detail::__member_begin, __detail::__adl_begin): Move here from
1049 <bits/range_access.h>.
1050 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
1051 * bits/range_access.h (__cust_access::__decay_copy)
1052 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
1053 <bits/iterator_concepts.h>.
1054 (ranges::iterator_t): Use __detail::__range_iter_t.
1055 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
1056 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
1057 (front_insert_iterator): Likewise.
1058 (insert_iterator): Implement changes from P0896R4 for C++20.
1059 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
1060 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
1061 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
1062 for inclusion in synopsis_c++20.cc which expects different signatures
1063 for some function templates.
1064 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
1066 * include/std/type_traits (__is_array_convertible): Move definition
1067 to immediately after is_convertible.
1069 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
1071 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
1072 (chrono::months, chrono::sys_days, chrono::local_t)
1073 (chrono::local_time, chrono::local_seconds, chrono::local_days):
1075 (chrono::time_point): Add missing static assert.
1076 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
1077 * testsuite/std/time/clock/file/overview.cc: New test.
1078 * testsuite/std/time/clock/file/members.cc: New test.
1079 * testsuite/std/time/syn_c++20.cc: New test.
1081 2020-03-25 Mike Crowe <mac@mcrowe.com>
1083 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
1085 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
1088 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
1090 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
1091 * include/std/chrono (filesystem::__file_clock): Here.
1092 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
1093 Define public member functions for C++20.
1094 (is_clock, is_clock_v): Define traits for C++20.
1095 * include/std/condition_variable (condition_variable::wait_until): Add
1096 check for valid clock.
1097 * include/std/future (_State_baseV2::wait_until): Likewise.
1098 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
1099 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
1101 * include/std/thread (this_thread::sleep_until): Likewise.
1102 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
1103 slow_clock with new namespace.
1104 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
1106 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1108 * testsuite/30_threads/future/members/clock_neg.cc: New test.
1109 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
1110 Qualify slow_clock with new namespace.
1111 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
1112 clock_neg.cc: New test.
1113 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
1115 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
1116 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1118 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
1119 slow_clock with new namespace.
1120 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
1121 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
1123 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
1124 * testsuite/std/time/traits/is_clock.cc: New test.
1125 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
1128 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
1131 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
1132 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
1133 Improve test coverage.
1136 * include/bits/fs_path.h (path::_S_str_convert): Replace first
1137 parameter with basic_string_view so that strings with different
1138 allocators can be accepted.
1139 (path::generic_string<C,T,A>()): Use basic_string object that uses the
1140 right allocator type.
1141 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
1142 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
1145 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
1148 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
1149 (__is_nt_default_constructible_impl): Remove.
1150 (__is_nothrow_default_constructible_impl): Remove.
1151 (__is_nt_constructible_impl): Add bool template parameter. Adjust
1152 partial specializations.
1153 (__is_nothrow_constructible_impl): Replace class template with alias
1155 (is_nothrow_default_constructible): Derive from alias template
1156 __is_nothrow_constructible_impl instead of
1157 __is_nothrow_default_constructible_impl.
1158 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
1160 * include/std/stop_token (stop_token::_Stop_state_ref): Define
1161 comparison operators explicitly if the compiler won't synthesize them.
1163 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
1164 __cpp_lib_concepts before using iter_reference_t.
1165 * include/bits/stream_iterator.h (istream_iterator): Check
1166 __cpp_lib_concepts before using default_sentinel_t.
1167 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
1170 * include/experimental/executor (executor::executor(Executor)): Call
1171 make_shared directly instead of _M_create. Create _Tgt1 object.
1172 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
1173 Call allocate_shared directly instead of _M_create. Create _Tgt2
1175 (executor::target_type): Add cast needed for new _Tgt interface.
1176 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
1177 (executor::_Tgt): Define the same interface whether RTTI is enabled or
1179 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
1180 std::type_info in the interface.
1181 (executor::_Tgt::_M_func): Add data member.
1182 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
1183 (executor::_Tgt1::_S_func): Define function to access target without
1185 (executor::_M_create): Remove.
1186 (operator==, operator!=): Simplify comparisons for executor.
1187 * include/experimental/socket (is_error_code_enum<socket_errc>):
1188 Define specialization before use.
1189 * testsuite/experimental/net/executor/1.cc: New test.
1191 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
1194 * include/experimental/executor (service_already_exists): Add default
1195 constructor. Declare make_service to be a friend.
1196 * testsuite/experimental/net/execution_context/make_service.cc: New
1199 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
1201 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
1202 a null pointer to functions with nonnull(1) attribute.
1204 2020-03-11 Patrick Palka <ppalka@redhat.com>
1206 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
1207 'address' -> 'std::__addressof'.
1208 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
1209 a non-forward input_range.
1210 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
1211 default constructor protected instead of deleted, like with
1212 input_iterator_wrapper.
1213 (test_range::iterator): Add comment explaining that this type is used
1214 only when the underlying wrapper is input_iterator_wrapper or
1215 output_iterator_wrapper. Remove delegating defaulted constructor so
1216 that the inherited default constructor is used instead.
1218 LWG 3286 ranges::size is not required to be valid after a call to
1219 ranges::begin on an input range
1220 * include/std/ranges (subrange::subrange): Split single-argument
1221 constructor into two, one constrained by _S_store_size and another by
1223 (take_view::begin): Call size() before calling ranges::begin(_M_base).
1224 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
1225 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
1227 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
1229 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
1230 instead of _M_current.
1231 (split_view::_OuterIter::operator++): Likewise.
1233 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
1234 (transform_view::_Iterator::operator*): Add noexcept-specifier.
1235 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
1236 (split_view::_OuterIter::__current): Add noexcept.
1237 (split_view::_InnerIter::__iter_swap): Remove.
1238 (split_view::_InnerIter::__iter_move): Remove.
1239 (split_view::_InnerIter::_M_i_current): New accessors.
1240 (split_view::_InnerIter::__at_end): Use _M_i_current().
1241 (split_view::_InnerIter::operator*): Likewise.
1242 (split_view::_InnerIter::operator++): Likewise.
1243 (iter_move(const _InnerIter&)): Likewise.
1244 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
1245 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
1246 for iter_move and iter_swap on split_view's inner iterator.
1249 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
1250 Change expression in noexcept-specifier to match function body.
1252 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
1253 comment explaining multiple dg-do directives.
1254 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
1255 so test is run as well as compiled.
1257 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
1260 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
1261 handle concatenations that change the type of the first component.
1262 (path::operator+=(basic_string_view<value_type>)): Likewise.
1263 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
1265 2020-03-06 Patrick Palka <ppalka@redhat.com>
1267 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
1268 join_view::_Sentinel<!_Const>.
1269 * testsuite/std/ranges/adaptors/join.cc: Augment test.
1272 * include/bits/range_access.h (__cust_access::_Empty::operator()):
1273 Declare return type to be bool instead of auto.
1274 * testsuite/std/ranges/adaptors/93978.cc: New test.
1276 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
1279 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
1280 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
1281 second argument to __glibcxx_rwlock_init.
1282 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
1285 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
1286 test to not fail due to PR 94063.
1287 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
1288 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
1290 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
1292 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
1295 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
1297 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
1298 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
1299 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1300 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
1301 for return value, and in comparison.
1302 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
1305 * include/std/string_view: Include <bits/ostream_insert.h>.
1306 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
1308 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
1310 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
1312 2020-03-04 Patrick Palka <ppalka@redhat.com>
1315 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
1316 condition for when to use memset, making sure to additionally check that
1317 the output pointer's value type is a non-volatile byte type. Instead of
1318 requiring that the fill type is a byte type, just require that it's an
1320 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1322 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1324 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
1325 blocked by PR 94017.
1326 * testsuite/25_algorithms/fill/94017.cc: New test.
1327 * testsuite/25_algorithms/fill_n/94017.cc: New test.
1329 LWG 3355 The memory algorithms should support move-only input iterators
1331 * include/bits/ranges_uninitialized.h
1332 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
1333 to copy __ifirst, which could be a move-only input iterator. Use
1334 operator- instead of ranges::distance to compute distance from a sized
1336 (__uninitialized_copy_n_fn::operator()): Likewise.
1337 (__uninitialized_move_fn::operator()): Likewise.
1338 (__uninitialized_move_n_fn::operator()): Likewise.
1339 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
1340 attempting to copy __first.
1341 (__uninitialized_destroy_n_fn::operator()): Likewise.
1342 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1344 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
1346 * .../specialized_algorithms/uninitialized_move/constrained.cc:
1349 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
1350 protected instead of private.
1351 (test_sized_range_sized_sent): New.
1353 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
1354 New testsuite iterator.
1355 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
1356 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1358 * include/bits/ranges_uninitialized.h
1359 (uninitialized_copy_fn::operator()): Pass a reference type as the first
1360 argument to is_nothrow_assignable_v.
1361 (uninitialized_copy_fn::operator()): Likewise.
1362 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
1363 with the input iterator stripped of its move_iterator.
1364 (uninitialized_move_n_fn::operator()): Likewise.
1365 (uninitialized_fill_fn::operator()): Pass a reference type as the first
1366 argument to is_nothrow_assignable_v.
1367 (uninitialized_fill_n_fn::operator()): Likewise.
1369 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
1372 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
1373 traits to control when to use memmove and memcmp optimizations.
1374 (__is_nonvolatile_trivially_copyable): New helper trait.
1375 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
1376 use memcmp optimization with volatile data.
1377 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
1378 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
1379 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
1380 (__copy_move_backward_a2): Likewise.
1381 (__equal_aux1): Use __memcmpable.
1382 (__lexicographical_compare_aux): Do not use memcmp optimization with
1384 * testsuite/25_algorithms/copy/94013.cc: New test.
1385 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
1386 * testsuite/25_algorithms/equal/94013.cc: New test.
1387 * testsuite/25_algorithms/fill/94013.cc: New test.
1388 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
1389 * testsuite/25_algorithms/move/94013.cc: New test.
1390 * testsuite/25_algorithms/move_backward/94013.cc: New test.
1392 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
1393 Avoid redundant iterator comparisons (LWG 3410).
1395 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
1398 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
1400 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
1402 * include/std/ranges (__detail::__maybe_empty_t): Rename to
1404 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
1406 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
1409 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
1411 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1413 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1415 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
1416 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1417 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1418 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1419 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1421 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1422 Add libatomic option.
1423 * testsuite/30_threads/jthread/jthread.cc: Likewise.
1425 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
1427 * include/bits/stl_algo.h
1428 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
1429 * include/bits/stl_algobase.h: ...here.
1430 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
1432 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1434 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
1436 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1438 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
1439 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
1440 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
1441 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1442 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
1443 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1444 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1448 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1450 2020-02-28 Patrick Palka <ppalka@redhat.com>
1453 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1454 Fix condition for when to use memcmp, making it consistent with the
1455 corresponding condition used in std::lexicographical_compare.
1456 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
1458 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
1459 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
1460 existing signatures for C++2a.
1462 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1464 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
1465 test instead of just compiling it.
1467 2020-02-28 Patrick Palka <ppalka@redhat.com>
1469 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
1470 whenever the underlying range models common_range.
1472 * include/std/ranges (__detail::_CachedPosition): New struct.
1473 (views::filter_view::_S_needs_cached_begin): New member variable.
1474 (views::filter_view::_M_cached_begin): New member variable.
1475 (views::filter_view::begin): Use _M_cached_begin to cache its
1477 (views::drop_view::_S_needs_cached_begin): New static member variable.
1478 (views::drop_view::_M_cached_begin): New member variable.
1479 (views::drop_view::begin): Use _M_cached_begin to cache its result
1480 when _S_needs_cached_begin.
1481 (views::drop_while_view::_M_cached_begin): New member variable.
1482 (views::drop_while_view::begin): Use _M_cached_begin to cache its
1484 (views::reverse_view::_S_needs_cached_begin): New static member
1486 (views::reverse_view::_M_cached_begin): New member variable.
1487 (views::reverse_view::begin): Use _M_cached_begin to cache its result
1488 when _S_needs_cached_begin.
1489 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
1490 drop_view::begin caches its result.
1491 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
1492 that drop_while_view::begin caches its result.
1493 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
1494 filter_view::begin caches its result.
1495 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1496 reverse_view::begin caches its result.
1498 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1500 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1501 filesystems that silently truncate timestamps.
1502 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1505 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1506 -Wstringop-overflow warnings.
1508 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1510 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1511 -fdiagnostics-urls=never to options.
1513 2020-02-27 Patrick Palka <ppalka@redhat.com>
1515 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
1517 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
1518 (take_view::_Sentinel<_Const>): Likewise.
1519 (take_while_view::_Sentinel<_Const>): Likewise.
1520 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
1521 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1522 * testsuite/std/ranges/adaptors/take.cc: Augment test.
1523 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
1524 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1526 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
1527 base() of a vector<>::iterator is a pointer.
1528 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
1529 * testsuite/25_algorithms/move/constrained.cc: Likewise.
1530 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
1531 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
1533 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1534 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
1535 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1536 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1537 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1539 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1541 * include/debug/array (operator<=>): Define for C++20.
1542 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
1543 Adjust dg-error line numbers.
1544 * testsuite/23_containers/array/tuple_interface/
1545 tuple_element_debug_neg.cc: Likewise.
1547 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
1548 defining _GLIBCXX_ASSERTIONS.
1549 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1550 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1551 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1552 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1553 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1554 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1555 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
1556 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
1557 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
1558 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
1559 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
1560 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1562 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
1563 C++98 where the member function of the base class returns void.
1565 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
1566 equality comparisons that support value-initialized iterators.
1568 * include/bits/boost_concept_check.h (__function_requires): Add
1569 _GLIBCXX14_CONSTEXPR.
1570 * testsuite/25_algorithms/min/concept_checks.cc: New test.
1572 2020-02-26 Patrick Palka <ppalka@redhat.com>
1575 * include/std/ranges (split_view::_InnerIter::operator==): Compare
1576 the operands' _M_i rather than their _M_i.current().
1577 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1579 P1645R1 constexpr for <numeric> algorithms
1580 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
1581 partial_sum, adjacent_difference): Make conditionally constexpr for
1583 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
1585 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
1586 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
1587 constexpr for C++20.
1588 * include/std/version (__cpp_lib_constexpr_numeric): Define.
1589 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
1590 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
1591 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1592 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1593 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1594 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1595 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1596 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1597 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
1598 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
1599 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1601 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
1603 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
1604 variables in smaller scope and avoid calling ranges::distance when we
1605 know they are pointers. Remove statically-unreachable use of
1606 __builtin_unreachable().
1607 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
1610 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
1612 (__detail::__maybe_const_t): Likewise.
1613 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
1614 (transform_view, take_view, take_while_view, elements_view): Use
1616 (join_view, split_view): Use both.
1618 2020-02-25 Patrick Palka <ppalka@redhat.com>
1620 LWG 3397 basic_istream_view::iterator should not provide
1622 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
1624 (basic_istream_view:_Iterator::iterator_concept): ... this.
1625 * testsuite/std/ranges/istream_view.cc: Augment test.
1627 LWG 3325 Constrain return type of transformation function for
1629 * include/std/ranges (transform_view): Constrain the return type of the
1630 transformation function as per LWG 3325.
1631 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
1633 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
1634 * include/std/ranges (join_view::_Iterator::operator--): Require that
1635 range_reference_t<_Base> models common_range.
1636 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
1638 LWG 3301 transform_view::_Iterator has incorrect iterator_category
1639 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
1640 determination of iterator_category as per LWG 3301.
1641 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1643 LWG 3292 iota_view is under-constrained
1644 * include/std/ranges (iota_view): Require that _Winc models semiregular
1646 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
1648 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
1650 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
1651 during constant evaluation. Call __builtin_memmove directly instead of
1653 (__copy_or_move_backward): Likewise.
1654 * include/bits/stl_algobase.h (__memmove): Remove.
1655 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
1656 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
1657 Use __builtin_memmove directly instead of __memmove.
1658 (__copy_move_a2): Do not use memmove during constant evaluation.
1659 (__copy_move_backward_a2): Use _IsMove constant to select correct
1660 __copy_move_backward specialization.
1661 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
1662 begin turned into moves during constant evaluation.
1664 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
1668 * include/bits/stl_algobase.h (__memmove): Cast away const before
1669 doing move assignment.
1670 * testsuite/25_algorithms/move/93872.cc: New test.
1671 * testsuite/25_algorithms/move_backward/93872.cc: New test.
1673 2020-02-24 Patrick Palka <ppalka@redhat.com>
1676 * include/bits/ranges_algobase.h (__copy_or_move,
1677 __copy_or_move_backward): Don't inspect the iter_value_t of the output
1678 iterator, instead inspect its iterator_traits directly.
1679 * include/bits/stl_iterator.h (back_insert_iterator::container):
1680 Conditionally initialize.
1681 (back_insert_iterator::difference_type): Conditionally define.
1682 (back_insert_iterator::back_insert_iterator): Conditionally define this
1683 default constructor.
1684 (front_insert_iterator::container): Conditionally initialize.
1685 (front_insert_iterator::difference_type): Conditionally define.
1686 (front_insert_iterator::front_insert_iterator): Conditionally define
1687 this default constructor.
1688 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
1689 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
1691 P0769R2 Add shift to <algorithm>
1692 * include/bits/ranges_algo.h (shift_left, shift_right): New.
1693 * testsuite/25_algorithms/shift_left/1.cc: New test.
1694 * testsuite/25_algorithms/shift_right/1.cc: New test.
1696 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
1698 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1699 Make noexcept-specifier conditional.
1700 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
1703 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1705 (operator==(istream_iterator, default_sentinel_t)): Add operator.
1706 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
1707 * include/bits/streambuf_iterator.h
1708 (istreambuf_iterator(default_sentinel_t)): Add constructor.
1709 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
1710 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1712 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
1713 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1715 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1717 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
1718 (ranges::enable_view): Simplify (LWG 3326).
1719 * include/bits/range_access.h (ranges::enable_view): Declare.
1720 * include/bits/regex.h (__enable_view_impl): Remove partial
1722 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
1723 * include/bits/stl_set.h (__enable_view_impl): Likewise.
1724 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
1725 * include/debug/multiset.h (__enable_view_impl): Likewise.
1726 * include/debug/set.h (__enable_view_impl): Likewise.
1727 * include/debug/unordered_set (__enable_view_impl): Likewise.
1728 * include/experimental/string_view (ranges::enable_view): Define
1729 partial specialization.
1730 * include/std/span (ranges::enable_view): Likewise.
1731 * include/std/string_view (ranges::enable_view): Likewise.
1732 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
1734 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
1736 * include/std/optional (operator<=>(optional<T>, optional<U>))
1737 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
1739 * include/std/tuple (__tuple_cmp): New helper function for <=>.
1740 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
1741 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
1742 (operator<=>(monostate, monostate)): Define for C++20.
1743 * testsuite/20_util/optional/relops/three_way.cc: New test.
1744 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
1745 * testsuite/20_util/variant/89851.cc: Move to ...
1746 * testsuite/20_util/variant/relops/89851.cc: ... here.
1747 * testsuite/20_util/variant/90008.cc: Move to ...
1748 * testsuite/20_util/variant/relops/90008.cc: ... here.
1749 * testsuite/20_util/variant/relops/three_way.cc: New test.
1751 2020-02-20 Patrick Palka <ppalka@redhat.com>
1753 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
1755 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
1756 __maybe_refwrap to capture lvalue references by reference, and then use
1757 unwrap_reference_t to forward the by-reference captures as references.
1758 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1759 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
1761 * include/std/ranges (iota_view): Forward declare _Sentinel.
1762 (iota_view::_Iterator): Befriend _Sentinel.
1763 (iota_view::_Sentinel::_M_equal): New member function.
1764 (iota_view::_Sentinel::operator==): Use it.
1765 (views::_Iota::operator()): Forward __f using the correct type.
1766 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
1767 with integers of different signedness, to appease iota_view's deduction
1769 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
1771 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
1773 * include/bits/range_access.h (ranges::begin): Reject array of
1775 (ranges::end, ranges::size): Require arrays to be bounded.
1776 (ranges::data): Require lvalue or borrowed_range.
1777 (ranges::iterator_t): Remove constraint.
1778 * testsuite/std/ranges/access/begin.cc: Do not check array of
1780 * testsuite/std/ranges/access/begin_neg.cc: New test.
1781 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
1782 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
1783 * testsuite/std/ranges/access/ssize.cc: Do not check array of
1786 * include/std/system_error (error_category::operator<=>)
1787 (operator<=>(const error_code&, const error_code&))
1788 (operator<=>(const error_condition&, const error_condition&)): Define
1790 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
1791 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
1793 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
1795 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
1796 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
1798 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
1799 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
1801 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
1802 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
1803 Remove incorrect comment.
1804 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
1807 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
1809 * include/std/thread (thread::id::operator<=>): Define for C++20.
1810 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
1811 functions in namespace std.
1812 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
1814 2020-02-19 Patrick Palka <ppalka@redhat.com>
1816 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
1817 null terminator of the underlying string as part of the test_range.
1818 (main): Call test03.
1820 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
1822 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
1823 requirement (LWG 3385).
1824 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
1825 expected declaration.
1827 * include/std/ranges (take_while_view, drop_view, drop_while_view)
1828 (elements_view:_Iterator): Initialize data members (LWG 3364).
1830 * libsupc++/compare (three_way_comparable): Remove always-false check
1831 that should have been removed with weak_equality (P1959R0).
1832 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
1834 * include/std/concepts (__detail::__partially_ordered_with): Move here
1836 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
1837 to simplify definition (LWG 3331).
1838 * libsupc++/compare (__detail::__partially_ordered_with): Move to
1841 * include/std/concepts (totally_ordered_with): Remove redundant
1842 requirement (LWG 3329).
1844 * include/std/ranges (__detail::__convertible_to_non_slicing): New
1846 (__detail::__pair_like_convertible_to): Remove.
1847 (__detail::__pair_like_convertible_from): Add requirements for
1848 non-slicing conversions.
1849 (subrange): Constrain constructors with __convertible_to_non_slicing.
1850 Remove constructors from pair-like types. Add new deduction guide.
1851 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
1853 * include/bits/iterator_concepts.h (iter_move): Add declaration to
1854 prevent unqualified lookup finding a suitable declaration (LWG 3247).
1856 * include/std/memory_resource (polymorphic_allocator::allocate)
1857 (polymorphic_allocator::allocate_object): Change type of exception to
1858 bad_array_new_length (LWG 3237).
1859 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
1861 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
1862 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
1863 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
1864 * testsuite/20_util/unwrap_reference/3.cc: New test.
1866 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
1867 type during overload resolution, use static assert instead (LWG 3200).
1868 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
1870 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
1872 * include/std/span (span(T (&)[N])): Use non-deduced context to
1873 prevent first parameter from interfering with class template argument
1874 deduction (LWG 3369).
1875 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
1876 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
1879 * include/std/span (span::const_iterator, span::const_reverse_iterator)
1880 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
1882 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
1884 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1886 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
1887 constrained.cc: Likewise.
1888 * testsuite/20_util/specialized_algorithms/
1889 uninitialized_default_construct/constrained.cc: Likewise.
1890 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
1891 constrained.cc: Likewise.
1892 * testsuite/20_util/specialized_algorithms/uninitialized_move/
1893 constrained.cc: Likewise.
1894 * testsuite/20_util/specialized_algorithms/
1895 uninitialized_value_construct/constrained.cc: Likewise.
1897 * include/bits/range_access.h (range_size_t): Define alias template.
1898 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
1899 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
1901 * include/std/ranges (filter_view, transform_view, take_view)
1902 (join_view, split_view, reverse_view): Remove commented-out converting
1903 constructors (LWG 3280).
1905 * include/std/memory (uninitialized_construct_using_allocator): Use
1906 std::construct_at (LWG 3321).
1908 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
1909 (polymorphic_allocator::allocate_object)
1910 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
1912 LWG 3379. "safe" in several library names is misleading
1913 * include/bits/range_access.h (enable_safe_range): Rename to
1914 enable_borrowed_range.
1915 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
1916 (safe_range): Rename to borrowed_range.
1917 * include/bits/ranges_algo.h: Adjust to use new names.
1918 * include/bits/ranges_algobase.h: Likewise.
1919 * include/bits/ranges_uninitialized.h: Likewise.
1920 * include/std/ranges: Likewise.
1921 (safe_iterator_t): Rename to borrowed_iterator_t.
1922 (safe_subrange_t): Rename to borrowed_subrange_t.
1923 * include/std/span: Adjust to use new names.
1924 * include/std/string_view: Likewise.
1925 * include/experimental/string_view: Likewise.
1926 * testsuite/std/ranges/access/begin.cc: Likewise.
1927 * testsuite/std/ranges/access/cbegin.cc: Likewise.
1928 * testsuite/std/ranges/access/cdata.cc: Likewise.
1929 * testsuite/std/ranges/access/cend.cc: Likewise.
1930 * testsuite/std/ranges/access/crbegin.cc: Likewise.
1931 * testsuite/std/ranges/access/crend.cc: Likewise.
1932 * testsuite/std/ranges/access/data.cc: Likewise.
1933 * testsuite/std/ranges/access/end.cc: Likewise.
1934 * testsuite/std/ranges/access/rbegin.cc: Likewise.
1935 * testsuite/std/ranges/access/rend.cc: Likewise.
1936 * testsuite/std/ranges/safe_range.cc: Likewise.
1937 * testsuite/std/ranges/safe_range_types.cc: Likewise.
1938 * testsuite/util/testsuite_iterators.h: Likewise.
1940 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
1941 (tuple_element<1, const subrange<I, S, K>>): Add partial
1942 specializations (LWG 3398).
1943 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
1945 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1946 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
1947 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
1949 2020-02-18 Patrick Palka <ppalka@redhat.com>
1951 P1983R0 Wording for GB301, US296, US292, US291, and US283
1952 * include/std/ranges (filter_view::pred): New member function.
1953 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
1954 P1983R0 fixes the highlighted issue in the same way.
1955 (join_view::_Iterator<_Const>): Add friend
1956 join_view::_Iterator<!_Const>.
1957 (join_view::_M_inner): Remove mutable specifier, effectively reverting
1958 the proposed wording changes of P3278.
1959 (join_view::begin): Refine the condition for when to return a const
1961 (split_view::_OuterIter::_OuterIter): Adjust constraints.
1962 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
1965 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
1968 * include/std/ranges (_RangeAdaptor): Add deduction guide.
1969 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
1971 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
1972 (transform_view::_Iterator): Add alias _Base_iter and use in place of
1974 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
1975 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
1976 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
1977 (split_view::_InnerIter::_S_iter_cat()): Likewise.
1979 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
1980 assumption that long is wider than int.
1981 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
1982 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1983 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1984 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1986 P1976R2 Fixed-size span construction from dynamic range
1987 * include/std/span (__cpp_lib_span): Update value.
1988 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
1990 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
1992 (span::first<Count>(), span::last<Count>()): Use explicit type in
1994 (as_bytes, as_writable_bytes): Likewise.
1995 * include/std/version (__cpp_lib_span): Update value.
1996 * testsuite/23_containers/span/1.cc: Check new value.
1997 * testsuite/23_containers/span/2.cc: Check new value.
1998 * testsuite/23_containers/span/explicit.cc: New test.
2000 * include/std/span (span::__is_compatible_array): Simplify alias
2001 template by using requires-clause.
2002 (span::__is_compatible_ref): New alias template for constraining
2004 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
2005 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
2006 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
2007 redundant parentheses.
2008 (span(R&&)): Add missing constraints.
2010 * include/std/span (span): Reorder members and rename template
2011 parameters to match declarations in the C++2a working paper.
2013 P2116R0 Remove tuple-like protocol support from fixed-extent span
2014 * include/std/span (get, tuple_size, tuple_element): Remove.
2015 * testsuite/23_containers/span/everything.cc: Remove checks for
2017 * testsuite/23_containers/span/get_neg.cc: Remove.
2018 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
2019 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
2020 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
2022 2020-02-17 Patrick Palka <ppalka@redhat.com>
2024 P2106R0 Alternative wording for GB315 and GB316
2025 * include/bits/ranges_algo.h (in_fun_result): New.
2026 (for_each_result, for_each_n_result): Change into an alias of
2028 (in_in_result): New.
2029 (mismatch_result): Change into an alias of in_in_result.
2030 (copy_if_result): Change into an alias of in_out_result.
2031 (swap_ranges_result): Change into an alias of in_in_result.
2032 (unary_transform_result): Change into an alias of in_out_result.
2033 (in_in_out_result): New.
2034 (binary_transform_result): Change into an alias of in_in_out_result.
2035 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
2036 remove_copy_result, unique_copy_result, reverse_copy_result,
2037 rotate_copy_result, partial_sort_copy_result): Change into an alias of
2039 (in_out_out_result): New.
2040 (partition_copy_result, merge_result): Change into an alias of
2042 (set_union_result, set_intersection_result): Change into an alias of
2044 (set_difference_result): Change into an alias of in_out_result.
2045 (set_symmetric_difference): Change into an alias of in_in_out_result.
2046 (min_max_result): New.
2047 (minmax_result, minmax_element_result): Change into an alias of
2049 (in_found_result): New.
2050 (next_permutation_result, prev_permutation_result): Change into an alias
2052 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
2053 Adjust following changes to next_permutation_result and
2054 prev_permutation_result.
2055 * include/bits/ranges_algobase.h (in_out_result): New.
2056 (copy_result, move_result, move_backward_result, copy_backward_result,
2057 copy_n_result): Change into an alias of in_out_result.
2058 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
2059 uninitialized_copy_n_result, uninitialized_move_result,
2060 uninitialized_move_n_result): Likewise.
2061 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
2062 structured bindings.
2063 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
2065 P1243R4 Rangify new algorithms
2066 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
2067 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
2068 * testsuite/25_algorithms/clamp/constrained.cc: New test.
2069 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
2070 * testsuite/25_algorithms/sample/constrained.cc: New test.
2072 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
2074 P1964R2 Wording for boolean-testable
2075 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2076 (__adjacent_find_fn): Cast result of predicate to bool.
2077 * include/std/concepts (__boolean): Remove.
2078 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
2079 new helper concepts.
2080 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
2081 (predicate): Use __boolean_testable instead of boolean.
2082 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
2085 P1970R2 Consistency for size() functions: Add ranges::ssize
2086 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
2087 * testsuite/std/ranges/access/ssize.cc: New test.
2089 P1956R1 On the names of low-level bit manipulation functions
2090 * include/bits/hashtable_policy.h: Update comment.
2091 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
2092 (ispow2, ceil2, floor2, log2p1): Likewise.
2093 (__cpp_lib_int_pow2): Add feature test macro.
2094 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
2095 * include/std/memory (assume_aligned): Adjust use of ispow2.
2096 * include/std/version (__cpp_lib_int_pow2): Add.
2097 * libsupc++/new_opa.cc: Adjust use of __ispow2.
2098 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
2099 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
2100 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
2101 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
2102 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
2103 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
2104 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
2105 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
2106 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
2107 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
2108 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
2109 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
2111 * include/std/charconv: Add comment.
2113 PR libstdc++/92546 (partial)
2114 * include/bits/random.h (uniform_random_bit_generator): Move definition
2115 to <bits/uniform_int_dist.h>.
2116 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
2118 * include/bits/ranges_algobase.h: Do not include <cmath>.
2119 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
2121 * include/std/ranges: Do not include <limits>.
2122 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2124 PR libstdc++/92546 (partial)
2125 * include/Makefile.am: Add new header.
2126 * include/Makefile.in: Regenerate.
2127 * include/bits/int_limits.h: New header.
2128 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
2129 numeric_limits with __detail::__int_limits.
2130 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2131 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
2133 * include/std/charconv (__to_chars_8, __from_chars_binary)
2134 (__from_chars_alpha_to_num, from_chars): Likewise.
2135 * include/std/memory_resource (polymorphic_allocator::allocate)
2136 (polymorphic_allocator::allocate_object): Likewise.
2137 * include/std/string_view (basic_string_view::_S_compare): Likewise.
2138 * include/std/utility (in_range): Likewise.
2139 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
2140 extra error about incomplete type __int_limits<bool>.
2141 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
2142 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
2143 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
2144 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
2145 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
2146 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
2147 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
2148 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
2149 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
2150 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
2151 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
2152 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
2154 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
2155 value for partial_ordering::unordered.
2157 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
2158 const-qualified expression variations.
2159 * include/std/concepts (copyable): Likewise.
2161 * include/std/type_traits (__is_standard_integer): New helper trait.
2162 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
2163 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
2164 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
2165 * testsuite/20_util/integer_comparisons/1.cc: New test.
2166 * testsuite/20_util/integer_comparisons/2.cc: New test.
2167 * testsuite/20_util/integer_comparisons/equal.cc: New test.
2168 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
2169 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
2170 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
2171 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
2172 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
2173 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
2174 * testsuite/20_util/integer_comparisons/less.cc: New test.
2175 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
2176 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
2177 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
2178 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
2179 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
2181 2020-02-16 Patrick Palka <ppalka@redhat.com>
2183 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
2184 Move code after an early exit constexpr if to under an else branch.
2185 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
2187 2020-02-15 Patrick Palka <ppalka@redhat.com>
2189 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
2190 * include/bits/ranges_algobase.h: Likewise.
2191 * include/bits/ranges_uninitialized.h: Likewise.
2193 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
2194 binary_search, copy_if, count, count_if, equal_range, find, find_end,
2195 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
2196 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
2197 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
2198 lower_bound, make_heap, max, max_element, merge, min, min_element,
2199 minmax, minmax_element, mismatch, next_permutation, none_of,
2200 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
2201 partition_point, pop_heap, prev_permutation, push_heap, remove,
2202 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
2203 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
2204 search, search_n, set_difference, set_intersection,
2205 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
2206 stable_partition, stable_sort, swap_ranges, transform, unique,
2207 unique_copy, upper_bound): Convert into function objects.
2208 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
2209 fill, move_backward, copy_backward): Likewise.
2210 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
2211 uninitialized_default_construct_n, uninitialized_value_construct,
2212 uninitialized_value_construct_n, uninitialized_copy,
2213 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
2214 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
2215 destroy, destroy_n): Likewise.
2217 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
2218 (ranges::find_end): ... here.
2219 (ranges::__lexicographical_compare): Fold into ...
2220 (ranges::lexicographical_compare): ... here.
2221 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
2222 (ranges::equal): ... here.
2224 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2226 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
2227 * include/std/deque: Likewise.
2228 * include/std/forward_list: Likewise.
2229 * include/std/list: Likewise.
2230 * include/std/string: Likewise.
2231 * include/std/vector: Likewise.
2232 * include/std/version: Likewise.
2233 * testsuite/23_containers/deque/erasure.cc: Test for new value.
2234 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
2235 * testsuite/23_containers/list/erasure.cc: Likewise.
2236 * testsuite/23_containers/map/erasure.cc: Likewise.
2237 * testsuite/23_containers/set/erasure.cc: Likewise.
2238 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2239 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2240 * testsuite/23_containers/vector/erasure.cc: Likewise.
2242 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2244 * include/bits/random.h (uniform_random_bit_generator): Require min()
2245 and max() to be constant expressions and min() to be less than max().
2246 * testsuite/26_numerics/random/concept.cc: Check additional cases.
2247 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2249 2020-02-13 Patrick Palka <ppalka@redhat.com>
2251 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
2252 * include/Makefile.in: Regenerate.
2253 * include/bits/ranges_uninitialized.h: New header.
2254 * include/std/memory: Include it.
2255 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
2257 * .../uninitialized_copy/constrained.cc: New test.
2258 * .../uninitialized_default_construct/constrained.cc: New test.
2259 * .../uninitialized_fill/constrained.cc: New test.
2260 * .../uninitialized_move/constrained.cc: New test.
2261 * .../uninitialized_value_construct/constrained.cc: New test.
2263 * include/Makefile.am: Add bits/ranges_algobase.h
2264 * include/Makefile.in: Regenerate.
2265 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
2267 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
2268 __detail::__is_move_iterator, copy_result, move_result,
2269 __equal, equal, copy_result, move_result, move_backward_result,
2270 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
2271 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
2272 fill): Split out into ...
2273 * bits/range_algobase.h: ... this new header.
2275 2020-02-12 Patrick Palka <ppalka@redhat.com>
2277 LWG 3389 and LWG 3390
2278 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
2279 constructing the move_iterator with __i.
2280 (counted_iterator::counted_iterator): Use std::move when initializing
2282 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
2283 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
2285 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
2290 * configure: Regenerated.
2292 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
2294 * include/bits/hashtable.h
2295 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
2296 missing std namespace qualification to forward call.
2298 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
2300 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
2302 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
2304 * include/std/ranges: Fix non-ASCII characters in comment.
2306 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
2307 equality comparison to be valid and return bool.
2308 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
2309 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
2310 type with ambiguous conversion to fundamental types.
2311 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
2313 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2315 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
2317 (readable_traits): Rename to indirectly_readable_traits.
2318 (readable): Rename to indirectly_readable.
2319 (writable): Rename to indirectly_writable.
2320 (__detail::__iter_exchange_move): Do not use remove_reference_t.
2321 (indirectly_swappable): Adjust requires expression parameter types.
2323 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
2324 (ranges::replace_if, ranges::generate_n, ranges::generate)
2325 (ranges::remove): Use new name for writable.
2326 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
2327 Use new name for readable.
2328 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
2329 new name for readable_traits.
2330 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
2331 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
2332 new definition of indirectly_readable.
2334 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
2335 to take parameters of common_iterator, instead of the common_iterator
2336 type itself. Fix argument for __common_iter_has_arrow constraint.
2337 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
2339 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2341 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
2343 (basic_istream_view::_Iterator::operator++()): Add missing return.
2345 2020-02-07 Patrick Palka <ppalka@redhat.com>
2347 * include/bits/ranges_algo.h: Remove extraneous &&.
2349 * include/std/ranges (ranges::__detail::__stream_extractable,
2350 ranges::basic_istream_view, ranges::istream_view): Define.
2351 * testsuite/std/ranges/istream_view: New test.
2353 Implement C++20 range adaptors
2354 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
2355 (subrange::_S_store_size): Mark as const instead of constexpr to
2356 avoid what seems to be a bug in GCC.
2357 (__detail::__box): Give it defaulted copy and move constructors.
2358 (ranges::views::_Single::operator()): Mark constexpr.
2359 (ranges::views::_Iota::operator()): Mark constexpr.
2360 (__detail::Empty): Define.
2361 (ranges::views::__closure::_RangeAdaptor,
2362 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
2363 ranges::views::all, ranges::__detail::find_if,
2364 ranges::__detail::find_if_not, ranges::__detail::mismatch,
2365 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
2366 ranges::views::transform, take_view, ranges::views::take,
2367 take_while_view, ranges::views::take_while, drop_view,
2368 ranges::views::drop, join_view, ranges::views::join,
2369 __detail::require_constant, __detail::tiny_range, split_view,
2370 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
2371 common_view, ranges::views::common, reverse_view,
2372 ranges::views::reverse,
2373 ranges::views::__detail::__is_reversible_subrange,
2374 ranges::views::__detail::__is_reverse_view, reverse_view,
2375 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
2376 ranges::views::elements, ranges::views::keys, ranges::views::values):
2378 (views): Alias for ranges::views.
2379 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
2380 tuple_element<1, ranges::subrange>): New partial specializations.
2381 * testsuite/std/ranges/adaptors/all.cc: New test.
2382 * testsuite/std/ranges/adaptors/common.cc: Likewise.
2383 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2384 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2385 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2386 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2387 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2388 * testsuite/std/ranges/adaptors/join.cc: Likewise.
2389 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2390 * testsuite/std/ranges/adaptors/split.cc: Likewise.
2391 * testsuite/std/ranges/adaptors/take.cc: Likewise.
2392 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2393 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2395 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2397 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
2398 type of enumerations and comparison category types.
2399 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
2400 (__cmp_cat::_Ncmp::unordered): Change value to 2.
2401 (partial_ordering::_M_value, weak_ordering::_M_value)
2402 (strong_ordering::_M_value): Change type to __cmp_cat::type.
2403 (partial_ordering::_M_is_ordered): Remove data member.
2404 (partial_ordering): Use second bit of _M_value for unordered. Adjust
2405 comparison operators.
2406 (weak_ordering::operator partial_ordering): Simplify to remove
2408 (operator<=>(unspecified, weak_ordering)): Likewise.
2409 (strong_ordering::operator partial_ordering): Likewise.
2410 (strong_ordering::operator weak_ordering): Likewise.
2411 (operator<=>(unspecified, strong_ordering)): Likewise.
2412 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
2413 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
2414 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
2416 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
2417 __cpp_lib_three_way_comparison macro and use deduced return type for
2419 * testsuite/std/ranges/iota/iterator.cc: New test.
2421 2020-02-07 Patrick Palka <ppalka@redhat.com>
2422 Jonathan Wakely <jwakely@redhat.com>
2424 Implement C++20 constrained algorithms
2425 * include/Makefile.am: Add new header.
2426 * include/Makefile.in: Regenerate.
2427 * include/std/algorithm: Include <bits/ranges_algo.h>.
2428 * include/bits/ranges_algo.h: New file.
2429 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
2430 * testsuite/25_algorithms/all_of/constrained.cc: New test.
2431 * testsuite/25_algorithms/any_of/constrained.cc: New test.
2432 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
2433 * testsuite/25_algorithms/copy/constrained.cc: New test.
2434 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
2435 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
2436 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
2437 * testsuite/25_algorithms/count/constrained.cc: New test.
2438 * testsuite/25_algorithms/count_if/constrained.cc: New test.
2439 * testsuite/25_algorithms/equal/constrained.cc: New test.
2440 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
2441 * testsuite/25_algorithms/fill/constrained.cc: New test.
2442 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
2443 * testsuite/25_algorithms/find/constrained.cc: New test.
2444 * testsuite/25_algorithms/find_end/constrained.cc: New test.
2445 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
2446 * testsuite/25_algorithms/find_if/constrained.cc: New test.
2447 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
2448 * testsuite/25_algorithms/for_each/constrained.cc: New test.
2449 * testsuite/25_algorithms/generate/constrained.cc: New test.
2450 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
2451 * testsuite/25_algorithms/heap/constrained.cc: New test.
2452 * testsuite/25_algorithms/includes/constrained.cc: New test.
2453 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
2454 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
2455 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
2456 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
2457 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
2458 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
2460 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
2461 * testsuite/25_algorithms/max/constrained.cc: New test.
2462 * testsuite/25_algorithms/max_element/constrained.cc: New test.
2463 * testsuite/25_algorithms/merge/constrained.cc: New test.
2464 * testsuite/25_algorithms/min/constrained.cc: New test.
2465 * testsuite/25_algorithms/min_element/constrained.cc: New test.
2466 * testsuite/25_algorithms/minmax/constrained.cc: New test.
2467 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
2468 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
2469 * testsuite/25_algorithms/move/constrained.cc: New test.
2470 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
2471 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
2472 * testsuite/25_algorithms/none_of/constrained.cc: New test.
2473 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
2474 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
2475 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
2476 * testsuite/25_algorithms/partition/constrained.cc: New test.
2477 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
2478 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
2479 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
2480 * testsuite/25_algorithms/remove/constrained.cc: New test.
2481 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
2482 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
2483 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
2484 * testsuite/25_algorithms/replace/constrained.cc: New test.
2485 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
2486 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
2487 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
2488 * testsuite/25_algorithms/reverse/constrained.cc: New test.
2489 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
2490 * testsuite/25_algorithms/rotate/constrained.cc: New test.
2491 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
2492 * testsuite/25_algorithms/search/constrained.cc: New test.
2493 * testsuite/25_algorithms/search_n/constrained.cc: New test.
2494 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
2495 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2496 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2498 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2499 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2500 * testsuite/25_algorithms/sort/constrained.cc: New test.
2501 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2502 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2503 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2504 * testsuite/25_algorithms/transform/constrained.cc: New test.
2505 * testsuite/25_algorithms/unique/constrained.cc: New test.
2506 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2507 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2509 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2511 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
2512 number in comment. Fix indentation.
2514 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
2515 redundant _GLIBCXX20_CONSTEXPR.
2517 * include/std/ranges (viewable_range): Replace decay_t with
2518 remove_cvref_t (LWG 3375).
2520 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
2522 * include/bits/iterator_concepts.h (iter_reference_t)
2523 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
2524 Remove workarounds for PR c++/67704.
2525 * testsuite/24_iterators/aliases.cc: New test.
2527 2020-02-05 Patrick Palka <ppalka@redhat.com>
2529 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
2530 when initializing _M_current.
2531 (move_iterator::base): Split into two overloads differing in
2532 ref-qualifiers as in P1207R4 for C++20.
2534 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
2536 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
2540 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
2541 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
2542 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
2544 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
2546 * configure: Regenerate.
2548 2020-01-31 Patrick Palka <ppalka@redhat.com>
2550 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
2551 test_range::end() returns the same type as test_range::begin().
2552 * testsuite/24_iterators/range_operations/next.cc: Likewise.
2553 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
2554 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
2555 Always return a sentinel<I>.
2557 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
2560 * include/std/stop_token (stop_token::stop_possible()): Call new
2561 _M_stop_possible() function.
2562 (stop_token::stop_requested()): Do not use stop_possible().
2563 (stop_token::binary_semaphore): New class, as temporary stand-in for
2564 std::binary_semaphore.
2565 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
2566 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
2567 New data members for symchronization with stop_callback destruction.
2568 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
2569 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
2571 (stop_token::_Stop_cb::_M_run): New member function.
2572 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
2574 (stop_token::_Stop_state::_M_owners): New data member to track
2575 reference count for ownership.
2576 (stop_token::_Stop_state::_M_value): New data member combining a
2577 spinlock, the stop requested flag, and the reference count for
2578 associated stop_source objects.
2579 (stop_token::_Stop_state::_M_requester): New data member for
2580 synchronization with stop_callback destruction.
2581 (stop_token::_Stop_state::_M_stop_possible()): New member function.
2582 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
2584 (stop_token::_Stop_state::_M_add_owner)
2585 (stop_token::_Stop_state::_M_release_ownership)
2586 (stop_token::_Stop_state::_M_add_ssrc)
2587 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
2588 updating reference counts.
2589 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2590 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2591 (stop_token::_Stop_state::_M_try_lock)
2592 (stop_token::_Stop_state::_M_try_lock_and_stop)
2593 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
2595 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
2596 read and update state. Release lock while running callbacks. Use new
2597 data members to synchronize with callback destruction.
2598 (stop_token::_Stop_state::_M_remove_callback): Likewise.
2599 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
2600 to read and update state.
2601 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
2602 replacing shared_ptr.
2603 (stop_source::stop_source(const stop_source&)): Update reference count.
2604 (stop_source::operator=(const stop_source&)): Likewise.
2605 (stop_source::~stop_source()): Likewise.
2606 (stop_source::stop_source(stop_source&&)): Define as defaulted.
2607 (stop_source::operator=(stop_source&&)): Establish postcondition on
2609 (stop_callback): Enforce preconditions on template parameter. Replace
2610 base class with data member of new _Cb_impl type.
2611 (stop_callback::stop_callback(const stop_token&, Cb&&))
2612 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
2613 (stop_callback::_Cb_impl): New type wrapping _Callback member and
2614 defining the _S_execute member function.
2615 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
2617 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
2618 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
2619 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
2621 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
2623 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
2624 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
2625 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
2628 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
2629 three_way_comparable_with.
2630 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
2631 (compare_three_way::operator()): Remove redundant constraint from
2633 (__detail::_Synth3way::operator()): Use three_way_comparable_with
2634 instead of workaround.
2635 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
2636 output due to simplified constraints on compare_three_way::operator().
2639 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
2640 * testsuite/18_support/comparisons/object/93479.cc: New test.
2642 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
2643 returns the same type as test_range::begin(). Add comments.
2644 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2645 * testsuite/std/ranges/access/rend.cc: Likewise.
2646 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
2647 test_range is the same as its iterator type.
2648 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
2649 operator- overloads to satisfy sized_sentinel_for when the iterator
2650 satisfies random_access_iterator.
2652 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
2655 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
2656 static assertion to object types.
2659 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
2660 clock_gettime instead of explicit glibc version check.
2661 * configure: Regenerate.
2663 2020-01-28 Martin Liska <mliska@suse.cz>
2666 * include/std/atomic: Fix typo.
2667 * include/std/optional: Likewise.
2669 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
2671 * configure: Regenerate.
2673 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
2676 * include/std/span (span): Fix deduction guide.
2677 * testsuite/23_containers/span/deduction.cc: New test.
2679 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
2681 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
2682 (__cmp_cat::_Ord::equivalent): Add enumerator.
2683 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
2685 (partial_ordering, weak_ordering, strong_ordering): Remove
2686 constructors taking __cmp_cat::_Eq parameters. Use renamed
2689 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
2691 * acinclude.m4: Handle `--with-toolexeclibdir='.
2692 * Makefile.in: Regenerate.
2693 * aclocal.m4: Regenerate.
2694 * configure: Regenerate.
2695 * doc/Makefile.in: Regenerate.
2696 * include/Makefile.in: Regenerate.
2697 * libsupc++/Makefile.in: Regenerate.
2698 * po/Makefile.in: Regenerate.
2699 * python/Makefile.in: Regenerate.
2700 * src/Makefile.in: Regenerate.
2701 * src/c++11/Makefile.in: Regenerate.
2702 * src/c++17/Makefile.in: Regenerate.
2703 * src/c++98/Makefile.in: Regenerate.
2704 * src/filesystem/Makefile.in: Regenerate.
2705 * testsuite/Makefile.in: Regenerate.
2707 2020-01-23 Alexandre Oliva <oliva@adacore.com>
2709 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
2710 * configure: Rebuild.
2712 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
2714 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
2717 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
2719 * include/Makefile.in: Regenerate.
2721 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
2723 * doc/xml/faq.xml: Fix grammar.
2724 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
2725 * doc/xml/manual/spine.xml: Update copyright years.
2726 * doc/html/*: Regenerate.
2728 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
2730 * doc/xml/faq.xml: Update for SVN -> Git transition.
2731 * doc/xml/manual/appendix_contributing.xml: Likewise.
2732 * doc/xml/manual/status_cxx1998.xml: Likewise.
2733 * doc/xml/manual/status_cxx2011.xml: Likewise.
2734 * doc/xml/manual/status_cxx2014.xml: Likewise.
2735 * doc/xml/manual/status_cxx2017.xml: Likewise.
2736 * doc/xml/manual/status_cxx2020.xml: Likewise.
2737 * doc/xml/manual/status_cxxtr1.xml: Likewise.
2738 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
2740 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
2742 * include/Makefile.am: Add coroutine to the std set.
2743 * include/Makefile.in: Regenerated.
2744 * include/std/coroutine: New file.
2746 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
2749 * include/bits/c++config: Only do PSTL config when the header is
2750 present, to fix freestanding.
2751 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
2752 functions if they were detected by configure.
2754 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
2755 Matthew Bauer <mjbauer95@gmail.com>
2756 Jonathan Wakely <jwakely@redhat.com>
2758 PR bootstrap/64271 (partial)
2759 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
2761 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
2762 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
2763 definitions with NetBSD upstream.
2764 (ctype_base::blank): Use _CTYPE_BL.
2765 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
2767 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
2768 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
2769 parameters to unsigned char.
2770 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
2772 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
2775 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
2776 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
2777 (_Equality_base): Remove.
2778 (_Equality<>::_M_equal): Review implementation. Use
2779 std::is_permutation.
2780 * testsuite/23_containers/unordered_multiset/operators/1.cc
2781 (Hash, Equal, test02, test03): New.
2782 * testsuite/23_containers/unordered_set/operators/1.cc
2783 (Hash, Equal, test02, test03): New.
2785 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
2788 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
2789 Move here from <bits/range_access.h> and define using __int128 when
2791 (__is_integer_like, __is_signed_integer_like): Move here from
2792 <bits/range_access.h>.
2793 (weakly_incrementable): Use __is_signed_integer_like.
2794 * include/bits/range_access.h (__max_diff_type, __max_size_type)
2795 (__is_integer_like, __is_signed_integer_like): Move to
2796 <bits/iterator_concepts.h>.
2797 (__make_unsigned_like_t): Move here from <ranges>.
2798 * include/std/ranges (__make_unsigned_like_t): Move to
2799 <bits/range_access.h>.
2800 (iota_view): Replace using-directive with using-declarations.
2801 * testsuite/std/ranges/iota/93267.cc: New test.
2802 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
2804 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
2807 * include/bits/fs_path.h (path::generic_string<C,A>)
2808 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
2809 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
2810 root-dir is converted to forward slash in generic pathname.
2811 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
2812 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
2815 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
2817 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
2818 (__atomic_float): Add default member initializer for C++20.
2819 * include/std/atomic (atomic): Likewise.
2820 (atomic::atomic()): Remove noexcept-specifier on default constructor.
2821 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
2822 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
2824 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2825 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
2826 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
2827 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
2828 expected result for is_trivially_default_constructible.
2829 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2830 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
2831 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
2832 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2833 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
2834 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
2835 expected results for is_trivially_default_constructible.
2836 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
2839 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
2841 * testsuite/util/testsuite_iterators.h: Improve comment.
2843 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
2844 initialization syntax.
2847 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
2848 of base class independent of __cplusplus value.
2849 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
2850 type defined in the base class
2851 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
2852 * testsuite/24_iterators/istreambuf_iterator/requirements/
2853 base_classes.cc: Adjust expected base class for C++98.
2855 2020-01-09 Olivier Hainque <hainque@adacore.com>
2857 * doc/xml/manual/appendix_contributing.xml: Document _C2
2858 as a reserved identifier, by VxWorks.
2859 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
2860 * include/bits/stl_multimap.h: Likewise.
2862 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2864 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
2865 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
2866 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
2867 partial specialization to disambiguate the two constrained
2870 * include/experimental/type_traits (experimental::is_pod_v): Disable
2871 -Wdeprecated-declarations warnings around reference to std::is_pod.
2872 * include/std/type_traits (is_pod_v): Likewise.
2873 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
2874 is_standard_layout and is_trivial. Do not check is_pod for C++20.
2875 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
2876 Add -Wno-deprecated for C++20.
2877 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
2878 * testsuite/20_util/is_pod/value.cc: Likewise.
2879 * testsuite/experimental/type_traits/value.cc: Likewise.
2881 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
2883 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
2884 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
2885 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
2887 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2890 * include/bits/random.h (operator>>): Check stream operation succeeds.
2891 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
2893 (operator>>): Remove redundant __istream_type typedefs. Check stream
2895 (__extract_params): New function to fill a vector from a stream.
2896 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
2899 * config/abi/pre/gnu.ver: Add new exports.
2900 * include/std/memory_resource (memory_resource::~memory_resource()):
2901 Do not define inline.
2902 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
2903 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
2905 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
2906 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
2908 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
2911 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
2913 (_Hashtable<>::__fwd_value_for): New.
2914 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
2916 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
2917 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
2918 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
2920 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
2921 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
2923 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
2925 * testsuite/23_containers/unordered_set/92124.cc: New.
2927 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
2930 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
2931 detailed error reporting for remove_all. Check result of recursive
2932 call before incrementing iterator.
2933 (remove_all(const path&), remove_all(const path&, error_code&)): Use
2935 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
2936 result of recursive call before incrementing iterator.
2937 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
2938 are reported correctly.
2939 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
2941 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
2943 * include/std/condition_variable
2944 (condition_variable_any::wait_on): Rename to match current draft
2946 (condition_variable_any::wait_on_until): Likewise.
2947 (condition_variable_any::wait_on_for): Likewise.
2948 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
2949 Adjust tests to account for renamed methods.
2951 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
2954 * include/bits/stl_tree.h
2955 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
2956 std::move_if_noexcept by std::move.
2957 * testsuite/23_containers/map/92124.cc: New.
2958 * testsuite/23_containers/set/92124.cc: New.
2960 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
2962 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
2963 (stop_source): Likewise (LWG 3362).
2964 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
2967 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
2968 (lexicographical_compare_three_way): Do not depend on
2970 * include/std/version (__cpp_lib_three_way_comparison): Only define
2971 when __cpp_lib_concepts is defined.
2972 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
2974 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
2976 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
2977 Only define four-argument overload when __cpp_lib_concepts is defined.
2979 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
2981 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
2983 2020-01-01 Jakub Jelinek <jakub@redhat.com>
2985 Update copyright years.
2987 Copyright (C) 2020 Free Software Foundation, Inc.
2989 Copying and distribution of this file, with or without modification,
2990 are permitted in any medium without royalty provided the copyright
2991 notice and this notice are preserved.