1 2021-07-22 Jonathan Wakely <jwakely@redhat.com>
3 Backported from master:
4 2021-04-15 Jonathan Wakely <jwakely@redhat.com>
7 * libsupc++/Makefile.am: Add atomicity.cc here.
8 * src/c++98/Makefile.am: Remove it from here.
9 * libsupc++/Makefile.in: Regenerate.
10 * src/c++98/Makefile.in: Regenerate.
11 * testsuite/18_support/exception_ptr/96657.cc: New test.
13 2021-07-22 Jonathan Wakely <jwakely@redhat.com>
15 Backported from master:
16 2021-06-07 Jonathan Wakely <jwakely@redhat.com>
19 * include/std/optional (operator<=>(const optional<T>& const U&)):
20 Add missing constraint and add workaround for template
22 * testsuite/20_util/optional/relops/three_way.cc: Check that
23 type without equality comparison cannot be compared when wrapped
26 2021-07-14 Jonathan Wakely <jwakely@redhat.com>
28 Backported from master:
29 2021-07-13 Jonathan Wakely <jwakely@redhat.com>
32 * include/std/string_view (ends_with): Use traits_type::compare
35 2021-07-14 Jonathan Wakely <jwakely@redhat.com>
37 Backported from master:
38 2021-07-12 Jonathan Wakely <jwakely@redhat.com>
41 * include/std/span (as_writable_bytes): Add requires-clause.
42 * testsuite/23_containers/span/101411.cc: New test.
44 2021-07-06 Avi Kivity <avi@scylladb.com>
46 Backported from master:
47 2021-06-07 Avi Kivity <avi@scylladb.com>
50 * include/std/ranges (elements_view::__iter_cat::_S_iter_cat):
53 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
55 Backported from master:
56 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
59 * include/std/numeric (reduce(Iter, Iter, T, BinaryOp)): Replace
60 incorrect static_assert with ones matching the 'Mandates'
61 conditions in the standard.
62 * testsuite/26_numerics/reduce/95833.cc: New test.
64 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
66 * include/std/variant (__same_types, __check_visitor_results):
69 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
71 Backported from master:
72 2021-05-04 Jonathan Wakely <jwakely@redhat.com>
74 * include/std/future (promise::set_value): Check for existence
75 of shared state before dereferncing it.
76 (promise::set_exception, promise::set_value_at_thread_exit)
77 (promise::set_exception_at_thread_exit): Likewise.
78 (promise<R&>::set_value, promise<R&>::set_exception)
79 (promise<R&>::set_value_at_thread_exit)
80 (promise<R&>::set_exception_at_thread_exit): Likewise.
81 (promise<void>::set_value, promise<void>::set_exception)
82 (promise<void>::set_value_at_thread_exit)
83 (promise<void>::set_exception_at_thread_exit): Likewise.
84 * testsuite/30_threads/promise/members/at_thread_exit2.cc:
85 Remove unused variable.
87 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
89 Backported from master:
90 2021-05-04 Jonathan Wakely <jwakely@redhat.com>
92 * include/bits/basic_string.h (basic_string(const CharT*, const A&)):
93 Do not do arithmetic on null pointer.
95 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
97 Backported from master:
98 2021-05-04 Jonathan Wakely <jwakely@redhat.com>
100 * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp
101 (find_key_pointer(key_const_reference, false_type))
102 (find_key_pointer(key_const_reference, true_type)): Do not
103 dereference null pointer.
105 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
107 Backported from master:
108 2021-05-04 Jonathan Wakely <jwakely@redhat.com>
110 * testsuite/20_util/from_chars/3.cc: Use unsigned type to avoid
112 * testsuite/24_iterators/reverse_iterator/2.cc: Do not add
113 non-zero value to null pointer.
114 * testsuite/25_algorithms/copy_backward/move_iterators/69478.cc:
115 Use past-the-end iterator for result.
116 * testsuite/25_algorithms/move_backward/69478.cc: Likewise.
117 * testsuite/25_algorithms/move_backward/93872.cc: Likewise.
119 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
121 Backported from master:
122 2021-05-04 Jonathan Wakely <jwakely@redhat.com>
125 * include/std/variant (__get_t): New alias template yielding the
126 return type of std::get<N> on a variant.
127 (__visit_result_t): New alias template yielding the result of
129 (__same_types): Move into namespace __detail::__variant.
130 (__check_visitor_results): Likewise. Use __invoke_result_t and
132 (__check_visitor_result): Remove.
133 (visit): Use __visit_result_t for return type.
134 * testsuite/20_util/variant/100384.cc: New test.
136 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
138 Backported from master:
139 2021-04-22 Jonathan Wakely <jwakely@redhat.com>
142 * include/bits/shared_ptr.h (allocate_shared): Assert that _Tp
143 is not an array type.
144 * include/bits/shared_ptr_base.h (__allocate_shared): Likewise.
145 * testsuite/20_util/shared_ptr/creation/99006.cc: New test.
147 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
149 Backported from master:
150 2021-05-11 Jonathan Wakely <jwakely@redhat.com>
152 * include/bits/allocator.h (allocator<void>) [C++20]: Add
153 missing noexcept to constructor. Restore missing POCMA and
154 is_always_equal_traits.
155 * include/bits/memoryfwd.h (allocator_traits): Declare.
156 * include/ext/malloc_allocator.h (malloc_allocator::allocate):
157 Add nodiscard attribute. Add static assertion for LWG 3307.
158 * include/ext/new_allocator.h (new_allocator::allocate): Add
159 static assertion for LWG 3307.
160 * testsuite/20_util/allocator/void.cc: Check that converting
161 constructor is noexcept. Check for propagation traits and
162 size_type and difference_type. Check that pointer and
163 const_pointer are gone in C++20.
165 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
167 Backported from master:
168 2021-05-10 Jonathan Wakely <jwakely@redhat.com>
170 * include/bits/shared_ptr_base.h (__shared_count(unique_ptr&&)):
171 Initialize a non-reference deleter from an rvalue, as per LWG
173 (__shared_ptr::_UniqCompatible): Add missing constraint.
174 * testsuite/20_util/shared_ptr/cons/lwg3548.cc: New test.
175 * testsuite/20_util/shared_ptr/cons/unique_ptr_deleter.cc: Check
178 2021-06-18 Jonathan Wakely <jwakely@redhat.com>
180 Backported from master:
181 2021-06-17 Jonathan Wakely <jwakely@redhat.com>
184 * include/bits/basic_string.h (__cpp_lib_constexpr_string): Only
185 define C++20 value when std::is_constant_evaluated is available.
186 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
188 (__constant_string_p, __constant_array_p): Give external
190 * include/std/version (__cpp_lib_constexpr_char_traits)
191 (__cpp_lib_constexpr_string): Only define C++20 values when
192 is_constant_evaluated is available.
194 2021-06-14 Jonathan Wakely <jwakely@redhat.com>
196 Backported from master:
197 2021-05-10 Jonathan Wakely <jwakely@redhat.com>
199 * testsuite/20_util/scoped_allocator/69293_neg.cc: Add dg-error
200 for additional errors in C++20.
201 * testsuite/20_util/uses_allocator/69293_neg.cc: Likewise.
202 * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise.
204 2021-06-14 Jonathan Wakely <jwakely@redhat.com>
206 Backported from master:
207 2021-06-09 Jonathan Wakely <jwakely@redhat.com>
210 * include/std/optional (optional::operator=(const optional<U>&)):
211 Fix value category used in is_assignable check.
212 * testsuite/20_util/optional/assignment/100982.cc: New test.
214 2021-06-14 Jonathan Wakely <jwakely@redhat.com>
216 Backported from master:
217 2021-06-14 Jonathan Wakely <jwakely@redhat.com>
220 * include/std/any (any(in_place_t<T>, initializer_list<U>, A&&...))
221 (any::emplace<T>(initializer_list<U>, A&&...)): Fix constraint
223 * testsuite/20_util/any/cons/101034.cc: New test.
225 2021-06-10 Patrick Palka <ppalka@redhat.com>
227 Backported from master:
228 2021-06-03 Patrick Palka <ppalka@redhat.com>
231 * include/bits/ranges_algo.h (__detail::__can_reread_output):
232 Factor out this concept from ...
233 (__unique_copy_fn::operator()): ... here. Use the concept
235 * testsuite/std/ranges/range.cc: Remove now ill-formed use
236 of range_value_t on an output_range.
237 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper):
238 Define value_type, pointer and reference member types to void.
240 2021-06-10 Patrick Palka <ppalka@redhat.com>
242 Backported from master:
243 2021-05-21 Patrick Palka <ppalka@redhat.com>
246 * include/std/ranges (iota_view::_Sentinel::_M_distance_from):
247 Split out this member function from ...
248 (iota_view::_Sentinel::operator-): ... here, for sake of access
250 * testsuite/std/ranges/iota/iota_view.cc (test05): New test.
252 2021-06-10 Patrick Palka <ppalka@redhat.com>
254 Backported from master:
255 2021-05-06 Patrick Palka <ppalka@redhat.com>
257 * include/std/ranges (filter_view::_Iterator::base): Make the
258 const& overload unconstrained and return a const reference as
259 per LWG 3533. Make unconditionally noexcept.
260 (transform_view::_Iterator::base): Likewise.
261 (elements_view::_Iterator::base): Likewise.
263 2021-06-10 Patrick Palka <ppalka@redhat.com>
265 Backported from master:
266 2021-05-06 Patrick Palka <ppalka@redhat.com>
268 * include/bits/stl_iterator.h (move_iterator::base): Make the
269 const& overload unconstrained and return a const reference as
270 per LWG 3391. Make unconditionally noexcept.
271 (counted_iterator::base): Likewise.
272 * testsuite/24_iterators/move_iterator/lwg3391.cc: New test.
273 * testsuite/24_iterators/move_iterator/move_only.cc: Adjust
274 has_member_base concept to decay-copy the result of base().
276 2021-06-10 Patrick Palka <ppalka@redhat.com>
278 Backported from master:
279 2021-05-18 Patrick Palka <ppalka@redhat.com>
282 * include/std/ranges (elements_view::_Sentinel::operator-): Use
283 _M_distance_from in the other operator- overload too.
284 * testsuite/std/ranges/adaptors/elements.cc (test06): Augment test.
286 2021-06-10 Patrick Palka <ppalka@redhat.com>
288 Backported from master:
289 2021-05-18 Patrick Palka <ppalka@redhat.com>
292 * include/std/ranges (elements_view::_Iterator): Also befriend
294 (elements_view::_Sentinel::_M_equal): Templatize.
295 (elements_view::_Sentinel::_M_distance_from): Split out from ...
296 (elements_view::_Sentinel::operator-): ... here. Depend on
297 _Base2 instead of _Base in the return type.
298 * testsuite/std/ranges/adaptors/elements.cc (test06, test07):
301 2021-06-10 Patrick Palka <ppalka@redhat.com>
303 Backported from master:
304 2021-05-20 Patrick Palka <ppalka@redhat.com>
307 * include/bits/stl_iterator.h (reverse_iterator::difference_type):
308 In C++20 mode, define in terms of iter_difference_t as per P0896R4.
309 (reverse_iterator::reference): Likewise, but with iter_reference_t.
310 (reverse_iterator::value_type): Likewise, but with iter_value_t.
311 * testsuite/std/ranges/adaptors/reverse.cc (test08): New test.
312 * testsuite/24_iterators/reverse_iterator/100639.cc: New test.
314 2021-06-03 Jonathan Wakely <jwakely@redhat.com>
316 Backported from master:
317 2021-06-01 Jonathan Wakely <jwakely@redhat.com>
320 * include/bits/range_access.h (ranges::advance(iter, n, sentinel)):
321 Fix return value for no-op case.
322 * testsuite/24_iterators/range_operations/advance.cc: Test
323 return values of three-argument overload.
325 2021-06-03 Jonathan Wakely <jwakely@redhat.com>
327 Backported from master:
328 2021-05-26 Jonathan Wakely <jwakely@redhat.com>
331 * include/bits/range_access.h (ranges::advance)
332 (ranges::distance, ranges::next, ranges::prev): Replace
333 function templates with function objects.
334 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
335 Adjust for changes to function objects.
336 * testsuite/std/ranges/adaptors/elements.cc: Add using
337 declarations for names from namespace ranges.
338 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
339 * testsuite/24_iterators/range_operations/100768.cc: New test.
341 2021-06-03 Jonathan Wakely <jwakely@redhat.com>
343 Backported from master:
344 2021-06-01 Jonathan Wakely <jwakely@redhat.com>
347 * python/Makefile.am: Use archive name for printer hook if no
348 dynamic library name is available.
349 * python/Makefile.in: Regenerate.
351 2021-06-03 Philippe Blain <levraiphilippeblain@gmail.com>
353 Backported from master:
354 2021-04-21 Philippe Blain <levraiphilippeblain@gmail.com>
355 Jonathan Wakely <jwakely@redhat.com>
358 * python/Makefile.am: Install libstdc++*-gdb.py more robustly.
359 * python/Makefile.in: Regenerate.
361 2021-05-17 Jonathan Wakely <jwakely@redhat.com>
364 * include/bits/fs_path.h (__is_constructible_from): Test
365 construction from a const lvalue, not an rvalue.
366 * include/experimental/bits/fs_path.h (__is_constructible_from):
368 * testsuite/27_io/filesystem/path/construct/100630.cc: New test.
369 * testsuite/experimental/filesystem/path/construct/100630.cc:
372 2021-05-17 Jonathan Wakely <jwakely@redhat.com>
374 Backported from master:
375 2021-03-11 Jonathan Wakely <jwakely@redhat.com>
377 * python/libstdcxx/v6/printers.py (find_type): Use tag attribute
378 instead of unqualified() method.
380 2021-05-05 Patrick Palka <ppalka@redhat.com>
382 Backported from master:
383 2021-05-05 Patrick Palka <ppalka@redhat.com>
385 * include/std/ranges (transform_view::_Iterator::iter_swap):
386 Remove as per LWG 3520.
387 (join_view::_Iterator::iter_swap): Add indirectly_swappable
388 constraint as per LWG 3517.
390 2021-05-04 Patrick Palka <ppalka@redhat.com>
392 Backported from master:
393 2021-04-30 Patrick Palka <ppalka@redhat.com>
395 * include/std/ranges (split_view::_InnerIter::operator++):
396 Depend on _Base instead of _Vp directly, as per LWG 3532.
398 2021-05-04 Patrick Palka <ppalka@redhat.com>
400 Backported from master:
401 2021-04-20 Patrick Palka <ppalka@redhat.com>
404 * include/bits/stl_iterator.h (__detail::__move_iter_cat):
406 (move_iterator): Derive from the above in C++20 in order to
407 conditionally define iterator_category as per P2259.
408 (move_iterator::__base_cat): No longer used, so remove.
409 (move_iterator::iterator_category): Remove in C++20.
410 (__detail::__common_iter_use_postfix_proxy): Define.
411 (common_iterator::_Proxy): Rename to ...
412 (common_iterator:__arrow_proxy): ... this.
413 (common_iterator::__postfix_proxy): Define as per P2259.
414 (common_iterator::operator->): Adjust.
415 (common_iterator::operator++): Adjust as per P2259.
416 (iterator_traits<common_iterator>::_S_iter_cat): Define.
417 (iterator_traits<common_iterator>::iterator_category): Change as
419 (__detail::__counted_iter_value_type): Define.
420 (__detail::__counted_iter_concept): Define.
421 (__detail::__counted_iter_cat): Define.
422 (counted_iterator): Derive from the above three classes in order
423 to conditionally define value_type, iterator_concept and
424 iterator category respectively as per P2259.
425 (counted_iterator::operator->): Define as per P2259.
426 (incrementable_traits<counted_iterator>): Remove as per P2259.
427 (iterator_traits<counted_iterator>): Adjust as per P2259.
428 * include/std/ranges (__detail::__iota_view_iter_cat): Define.
429 (iota_view::_Iterator): Derive from the above in order to
430 conditionally define iterator_category as per P2259.
431 (iota_view::_S_iter_cat): Rename to ...
432 (iota_view::_S_iter_concept): ... this.
433 (iota_view::iterator_concept): Use it to apply LWG 3291 changes.
434 (iota_view::iterator_category): Remove.
435 (__detail::__filter_view_iter_cat): Define.
436 (filter_view::_Iterator): Derive from the above in order to
437 conditionally define iterator_category as per P2259.
438 (filter_view::_Iterator): Move to struct __filter_view_iter_cat.
439 (filter_view::_Iterator::iterator_category): Remove.
440 (transform_view::_Base): Define.
441 (transform_view::__iter_cat): Define.
442 (transform_view::_Iterator): Derive from the above in order to
443 conditionally define iterator_category as per P2259.
444 (transform_view::_Iterator::_Base): Just alias
445 transform_view::_Base.
446 (transform_view::_Iterator::_S_iter_cat): Move to struct
447 transform_view::__iter_cat.
448 (transform_view::_Iterator::iterator_category): Remove.
449 (transform_view::_Sentinel::_Base): Just alias
450 transform_view::_Base.
451 (join_view::_Base): Define.
452 (join_view::_Outer_iter): Define.
453 (join_view::_Inner_iter): Define.
454 (join_view::_S_ref_is_glvalue): Define.
455 (join_view::__iter_cat): Define.
456 (join_view::_Iterator): Derive from it in order to conditionally
457 define iterator_category as per P2259.
458 (join_view::_Iterator::_Base): Just alias join_view::_Base.
459 (join_view::_Iterator::_S_ref_is_glvalue): Just alias
460 join_view::_S_ref_is_glvalue.
461 (join_view::_Iterator::_S_iter_cat): Move to struct
462 transform_view::__iter_cat.
463 (join_view::_Iterator::_Outer_iter): Just alias
464 join_view::_Outer_iter.
465 (join_view::_Iterator::_Inner_iter): Just alias
466 join_view::_Inner_iter.
467 (join_view::_Iterator::iterator_category): Remove.
468 (join_view::_Sentinel::_Base): Just alias join_view::_Base.
469 (__detail::__split_view_outer_iter_cat): Define.
470 (__detail::__split_view_inner_iter_cat): Define.
471 (split_view::_Base): Define.
472 (split_view::_Outer_iter): Derive from __split_view_outer_iter_cat
473 in order to conditionally define iterator_category as per P2259.
474 (split_view::_Outer_iter::iterator_category): Remove.
475 (split_view::_Inner_iter): Derive from __split_view_inner_iter_cat
476 in order to conditionally define iterator_category as per P2259.
477 (split_view::_Inner_iter::_S_iter_cat): Move to
478 __split_view_inner_iter_cat.
479 (split_view::_Inner_iter::iterator_category): Remove.
480 (elements_view::_Base): Define.
481 (elements_view::__iter_cat): Define.
482 (elements_view::_Iterator): Derive from the above in order to
483 conditionall define iterator_category as per P2259.
484 (elements_view::_Iterator::_Base): Just alias
485 elements_view::_Base.
486 (elements_view::_Iterator::_S_iter_concept)
487 (elements_view::_Iterator::iterator_concept): Define as per
489 (elements_view::_Iterator::iterator_category): Remove.
490 (elements_view::_Sentinel::_Base): Just alias
491 elements_view::_Base.
492 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc:
493 Adjust constraints on iterator_traits<counted_iterator>.
494 * testsuite/std/ranges/p2259.cc: New test.
496 2021-05-03 Patrick Palka <ppalka@redhat.com>
498 Backported from master:
499 2021-04-27 Patrick Palka <ppalka@redhat.com>
502 * include/std/ranges (join_view::_Iterator::operator++): Correct
503 the return type of the lambda to avoid returning a copy of
505 * testsuite/std/ranges/adaptors/join.cc (test10): New test.
507 2021-04-30 Jonathan Wakely <jwakely@redhat.com>
509 Backported from master:
510 2021-04-30 Jonathan Wakely <jwakely@redhat.com>
512 * include/bits/basic_string.h (__cpp_lib_constexpr_string):
513 Only define for C++17 and later.
515 2021-04-29 Jonathan Wakely <jwakely@redhat.com>
517 Backported from master:
518 2021-04-26 Jonathan Wakely <jwakely@redhat.com>
521 * include/experimental/internet (net::ip::make_error_code)
522 (net::ip::make_error_condition, net::ip::make_network_v4)
523 (net::ip::operator==(const udp&, const udp&)): Add 'inline'.
525 2021-04-29 Jonathan Wakely <jwakely@redhat.com>
527 Backported from master:
528 2021-04-28 Jonathan Wakely <jwakely@redhat.com>
530 * include/bits/basic_string.h (__cpp_lib_constexpr_string): Define.
531 * include/std/version (__cpp_lib_constexpr_string): Define.
532 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
533 Check for __cpp_lib_constexpr_string.
534 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
536 * testsuite/21_strings/char_traits/requirements/version.cc: New test.
538 2021-04-21 Jonathan Wakely <jwakely@redhat.com>
541 * testsuite/experimental/net/internet/address/v6/members.cc:
544 2021-04-21 Patrick Palka <ppalka@redhat.com>
546 Backported from master:
547 2021-04-08 Patrick Palka <ppalka@redhat.com>
549 * include/std/ranges (__detail::find): Define.
550 (split_view::_OuterIter::operator++): Apply proposed resolution
552 * testsuite/std/ranges/adaptors/split.cc (test10): New test.
554 2021-04-21 Patrick Palka <ppalka@redhat.com>
556 Backported from master:
557 2021-04-08 Patrick Palka <ppalka@redhat.com>
559 * include/std/ranges (__detail::find_if): Simplify.
560 (__detail::find_if_not): Likewise.
561 (__detail::min): Remove.
562 (__detail::mismatch): Simplify.
563 (take_view::size): Use std::min instead of __detail::min.
565 2021-04-21 Patrick Palka <ppalka@redhat.com>
567 Backported from master:
568 2021-04-08 Patrick Palka <ppalka@redhat.com>
570 * include/std/ranges (__detail::__returnable_element): New
572 (elements_view): Use this concept in its constraints. Add
573 missing private access specifier.
574 (elements_view::_S_get_element): Define as per LWG 3502.
575 (elements_view::operator*, elements_view::operator[]): Use
577 (elements_view::operator++): Remove unnecessary constraint
579 * testsuite/std/ranges/adaptors/elements.cc (test05): New test.
581 2021-04-21 Patrick Palka <ppalka@redhat.com>
583 Backported from master:
584 2020-10-31 Patrick Palka <ppalka@redhat.com>
587 * include/std/ranges (basic_istream_view::begin): Initialize
588 _Iterator from 'this' instead of '*this'.
589 (basic_istream_view::_Iterator::_Iterator): Adjust constructor
591 (filter_view::_Iterator::_Iterator): Take a filter_view*
592 argument instead of a filter_view& argument.
593 (filter_view::_Sentinel::_Sentinel): Likewise.
594 (filter_view::begin): Initialize _Iterator from 'this' instead
596 (filter_view::end): Likewise.
597 (transform_view::_Iterator::_Iterator): Take a _Parent* instead
599 (filter_view::_Iterator::operator+): Adjust accordingly.
600 (filter_view::_Iterator::operator-): Likewise.
601 (filter_view::begin): Initialize _Iterator from 'this' instead
603 (filter_view::end): Likewise.
604 (join_view::_Iterator): Take a _Parent* instead of a _Parent&.
605 (join_view::_Sentinel): Likewise.
606 (join_view::begin): Initialize _Iterator from 'this' instead of
608 (join_view::end): Initialize _Sentinel from 'this' instead of
610 (split_view::_OuterIter): Take a _Parent& instead of a _Parent*.
611 (split_view::begin): Initialize _OuterIter from 'this' instead
613 (split_view::end): Likewise.
614 * testsuite/std/ranges/97600.cc: New test.
616 2021-04-19 François Dumont <fdumont@gcc.gnu.org>
619 * include/debug/helper_functions.h (__can_advance(_InputIterator,
620 const std::pair<_Diff, _Distance_precision>&, int)): New.
621 (__can_advance(const _Safe_iterator<>&,
622 const std::pair<_Diff, _Distance_precision>&, int)): New.
623 * include/debug/macros.h (__glibcxx_check_can_increment_dist): New,
625 (__glibcxx_check_can_increment_range): Adapt to use latter.
626 (__glibcxx_check_can_decrement_range): Likewise.
627 * include/debug/safe_iterator.h
628 (_Safe_iterator<>::_M_can_advance(const std::pair<_Diff, _Distance_precision>&,
630 (__can_advance(const _Safe_iterator<>&,
631 const std::pair<_Diff, _Distance_precision>&, int)): New.
632 * include/debug/safe_iterator.tcc
633 (_Safe_iterator<>::_M_can_advance(const std::pair<_Diff, _Distance_precision>&,
635 (_Safe_iterator<>::_M_valid_range(const _Safe_iterator<>&,
636 std::pair<difference_type, _Distance_precision>&, bool)): Adapt for
638 (__copy_move_a): Adapt to use __glibcxx_check_can_increment_dist.
639 (__copy_move_backward_a): Likewise.
640 (__equal_aux): Likewise.
641 * include/debug/stl_iterator.h (__can_advance(const std::reverse_iterator<>&,
642 const std::pair<_Diff, _Distance_precision>&, int)): New.
643 (__can_advance(const std::move_iterator<>&,
644 const std::pair<_Diff, _Distance_precision>&, int)): New.
645 * testsuite/25_algorithms/copy/debug/99402.cc: New test.
647 2021-04-19 Jonathan Wakely <jwakely@redhat.com>
649 Backported from master:
650 2020-10-26 Jonathan Wakely <jwakely@redhat.com>
653 * libsupc++/new_opa.cc: Declare size_t in global namespace.
654 Remove unused header.
656 2021-04-13 Jonathan Wakely <jwakely@redhat.com>
658 Backported from master:
659 2021-04-13 Jonathan Wakely <jwakely@redhat.com>
662 * include/std/bit: Only include <ext/numeric_traits.h> for
663 hosted build, use <limits> otherwise.
665 2021-04-12 Jonathan Wakely <jwakely@redhat.com>
667 Backported from master:
668 2021-04-12 Jonathan Wakely <jwakely@redhat.com>
671 * include/std/ranges (__detail::__iterator_sentinel_pair):
672 Remove helper concept.
673 (subrange(_Pr), subrange(Pr, __make_unsigned_like<...>)): Remove
674 deduction guides, as per LWG 3404.
675 * testsuite/std/ranges/subrange/lwg3282_neg.cc: Check that class
676 template argument deduction fails.
678 2021-04-12 Jonathan Wakely <jwakely@redhat.com>
680 Backported from master:
681 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
683 * include/bits/iterator_concepts.h (indirectly_readable): Add
684 partial specializations to resolve ambiguities (LWG 3446).
685 * testsuite/24_iterators/associated_types/readable.traits.cc:
686 Check types with both value_type and element_type.
688 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
691 * include/bits/hashtable.h (_Hashtable): Fix noexcept-speciofier
692 on definition to match the one on the declaration.
694 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
696 Backported from master:
697 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
700 * include/bits/hashtable.h (_Hashtable::_S_nothrow_move()): Fix
701 to be a valid constexpr function in C++11.
702 * testsuite/23_containers/unordered_set/cons/99985.cc: New test.
704 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
706 Backported from master:
707 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
709 * include/bits/fs_fwd.h: Fix doxygen group command.
710 * include/bits/streambuf_iterator.h: Likewise.
711 * include/std/chrono: Likewise.
712 * include/std/memory: Likewise.
713 * include/std/thread: Likewise.
714 * include/tr1/complex: Likewise.
716 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
718 Backported from master:
719 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
721 * include/bits/basic_string.h: Tweak doxygen comment.
723 2021-04-09 Jonathan Wakely <jwakely@redhat.com>
725 Backported from master:
726 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
728 * include/bits/random.h: Fix doxygen group commands.
729 * include/bits/regex_constants.h: Likewise.
730 * include/tr1/random.h: Likewise.
732 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
734 Backported from master:
735 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
737 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
738 Use allocator with the correct value type.
739 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
742 2021-04-08 François Dumont <fdumont@gcc.gnu.org>
744 Backported from master:
745 2020-07-29 François Dumont <fdumont@gcc.gnu.org>
748 * include/bits/hashtable.h
749 (_Hashtable(_Hashtable&& __ht, __node_alloc_type&& __a, true_type)):
750 Add noexcept qualification.
751 (_Hashtable(_Hashtable&&)): Fix noexcept qualification.
752 (_Hashtable(_Hashtable&&, const allocator_type&)): Add noexcept
754 * include/bits/unordered_map.h
755 (unordered_map(unordered_map&&, const allocator_type&)): Add noexcept
757 (unordered_multimap(unordered_multimap&&, const allocator_type&)):
759 * include/bits/unordered_set.h
760 (unordered_set(unordered_set&&, const allocator_type&)): Likewise.
761 (unordered_multiset(unordered_multiset&&, const allocator_type&)):
763 * include/debug/unordered_map
764 (unordered_map(unordered_map&&, const allocator_type&)): Likewise.
765 (unordered_multimap(unordered_multimap&&, const allocator_type&)):
767 * include/debug/unordered_set
768 (unordered_set(unordered_set&&, const allocator_type&)): Likewise.
769 (unordered_multiset(unordered_multiset&&, const allocator_type&)):
771 * testsuite/23_containers/unordered_map/allocator/default_init.cc:
773 * testsuite/23_containers/unordered_map/cons/noexcept_default_construct.cc:
775 * testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc:
777 * testsuite/23_containers/unordered_map/modifiers/move_assign.cc:
779 * testsuite/23_containers/unordered_multimap/cons/noexcept_default_construct.cc:
781 * testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc:
783 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
785 * testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc:
787 * testsuite/23_containers/unordered_set/allocator/default_init.cc:
789 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
791 * testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc:
794 2021-04-08 François Dumont <fdumont@gcc.gnu.org>
796 Backported from master:
797 2020-07-08 François Dumont <fdumont@gcc.gnu.org>
800 * include/bits/stl_tree.h (_Rb_tree_impl(_Rb_tree_impl&&)): Add noexcept
801 qualification based only on _Compare one.
802 * testsuite/23_containers/map/cons/noexcept_move_construct.cc: Add
804 * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
806 * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
808 * testsuite/23_containers/set/cons/noexcept_move_construct.cc: Likewise.
810 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
812 Backported from master:
813 2021-04-07 Jonathan Wakely <jwakely@redhat.com>
816 * src/c++17/fs_path.cc (path::_M_split_cmpts): Do not call
817 non-const member on _M_pathname, to avoid copy-on-write.
818 * testsuite/27_io/filesystem/path/decompose/parent_path.cc:
819 Check construction from strings that might be shared.
821 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
823 * doc/xml/manual/status_cxx2017.xml: Replace Intel parallelstl
824 link with LLVM repo for PSTL.
825 * doc/html/manual/status.html: Regenerate.
827 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
829 Backported from master:
830 2021-04-06 Jonathan Wakely <jwakely@redhat.com>
832 * include/bits/alloc_traits.h: Use markdown for code font.
833 * include/bits/basic_string.h: Fix @param names.
834 * include/bits/regex.h: Fix duplicate @retval names, and rename.
835 * include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp: Add
836 group open to match existing group close.
837 * include/ext/pb_ds/priority_queue.hpp: Add blank line before group
840 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
842 Backported from master:
843 2021-04-06 Jonathan Wakely <jwakely@redhat.com>
845 * include/bits/atomic_base.h: Fix doxygen group close.
846 * include/bits/basic_ios.h: Likewise.
847 * include/bits/forward_list.h: Likewise.
848 * include/bits/fs_dir.h: Likewise.
849 * include/bits/fs_ops.h: Likewise.
850 * include/bits/fs_path.h: Likewise.
851 * include/bits/functional_hash.h: Likewise.
852 * include/bits/gslice.h: Likewise.
853 * include/bits/gslice_array.h: Likewise.
854 * include/bits/hashtable_policy.h: Likewise.
855 * include/bits/indirect_array.h: Likewise.
856 * include/bits/locale_classes.h: Likewise.
857 * include/bits/locale_facets.h: Likewise.
858 * include/bits/locale_facets_nonio.h: Likewise.
859 * include/bits/mask_array.h: Likewise.
860 * include/bits/refwrap.h: Likewise.
861 * include/bits/regex.h: Likewise.
862 * include/bits/regex_automaton.h: Likewise.
863 * include/bits/regex_compiler.h: Likewise.
864 * include/bits/regex_constants.h: Likewise.
865 * include/bits/regex_error.h: Likewise.
866 * include/bits/regex_executor.h: Likewise.
867 * include/bits/regex_scanner.h: Likewise.
868 * include/bits/shared_ptr.h: Likewise.
869 * include/bits/shared_ptr_atomic.h: Likewise.
870 * include/bits/shared_ptr_base.h: Likewise.
871 * include/bits/slice_array.h: Likewise.
872 * include/bits/specfun.h: Likewise.
873 * include/bits/std_function.h: Likewise.
874 * include/bits/std_mutex.h: Likewise.
875 * include/bits/stl_deque.h: Likewise.
876 * include/bits/stl_iterator.h: Likewise.
877 * include/bits/stl_iterator_base_types.h: Likewise.
878 * include/bits/stl_map.h: Likewise.
879 * include/bits/stl_multimap.h: Likewise.
880 * include/bits/stl_multiset.h: Likewise.
881 * include/bits/stl_numeric.h: Likewise.
882 * include/bits/stl_pair.h: Likewise.
883 * include/bits/stl_set.h: Likewise.
884 * include/bits/stl_uninitialized.h: Likewise.
885 * include/bits/stream_iterator.h: Likewise.
886 * include/bits/streambuf_iterator.h: Likewise.
887 * include/bits/unique_ptr.h: Likewise.
888 * include/bits/unordered_map.h: Likewise.
889 * include/bits/unordered_set.h: Likewise.
890 * include/decimal/decimal: Likewise.
891 * include/experimental/any: Likewise.
892 * include/experimental/array: Likewise.
893 * include/experimental/bits/fs_dir.h: Likewise.
894 * include/experimental/bits/fs_fwd.h: Likewise.
895 * include/experimental/bits/fs_ops.h: Likewise.
896 * include/experimental/bits/fs_path.h: Likewise.
897 * include/experimental/buffer: Likewise.
898 * include/experimental/internet: Likewise.
899 * include/experimental/optional: Likewise.
900 * include/experimental/propagate_const: Likewise.
901 * include/experimental/socket: Likewise.
902 * include/ext/pb_ds/assoc_container.hpp: Likewise.
903 * include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp:
905 * include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp: Likewise.
906 * include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp: Likewise.
907 * include/ext/pb_ds/detail/types_traits.hpp: Likewise.
908 * include/ext/pb_ds/exception.hpp: Likewise.
909 * include/ext/pb_ds/priority_queue.hpp: Likewise.
910 * include/ext/pb_ds/tag_and_trait.hpp: Likewise.
911 * include/ext/random: Likewise.
912 * include/std/any: Likewise.
913 * include/std/atomic: Likewise.
914 * include/std/bitset: Likewise.
915 * include/std/chrono: Likewise.
916 * include/std/complex: Likewise.
917 * include/std/condition_variable: Likewise.
918 * include/std/fstream: Likewise.
919 * include/std/future: Likewise.
920 * include/std/istream: Likewise.
921 * include/std/iostream: Likewise.
922 * include/std/mutex: Likewise.
923 * include/std/numeric: Likewise.
924 * include/std/ostream: Likewise.
925 * include/std/ratio: Likewise.
926 * include/std/shared_mutex: Likewise.
927 * include/std/stdexcept: Likewise.
928 * include/std/streambuf: Likewise.
929 * include/std/system_error: Likewise.
930 * include/std/valarray: Likewise.
931 * include/std/variant: Likewise.
932 * include/tr1/cmath: Likewise.
933 * include/tr1/regex: Likewise.
934 * include/tr2/dynamic_bitset: Likewise.
935 * libsupc++/atomic_lockfree_defines.h: Likewise.
936 * libsupc++/exception: Likewise.
937 * libsupc++/exception.h: Likewise.
938 * libsupc++/exception_ptr.h: Likewise.
939 * libsupc++/nested_exception.h: Likewise.
941 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
943 Backported from master:
944 2021-04-08 Jonathan Wakely <jwakely@redhat.com>
946 * include/std/string_view: Adjust Doxygen @file comment.
948 2021-04-08 Release Manager
950 * GCC 10.3.0 released.
952 2021-04-01 Jonathan Wakely <jwakely@redhat.com>
954 Backported from master:
955 2021-02-14 Jonathan Wakely <jwakely@redhat.com>
958 * testsuite/util/testsuite_fs.h: Always include <unistd.h>.
960 2021-04-01 Jonathan Wakely <jwakely@redhat.com>
962 Backported from master:
963 2020-12-17 Jonathan Wakely <jwakely@redhat.com>
965 * config.h.in: Regenerate.
966 * config/os/djgpp/error_constants.h: Test POSIX errno macros
967 directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros.
968 * config/os/mingw32-w64/error_constants.h: Likewise.
969 * config/os/mingw32/error_constants.h: Likewise.
970 * configure: Regenerate.
972 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
974 Backported from master:
975 2020-11-30 Jonathan Wakely <jwakely@redhat.com>
977 * testsuite/20_util/specialized_algorithms/pstl/*: Add
979 * testsuite/25_algorithms/pstl/*: Likewise.
980 * testsuite/26_numerics/pstl/*: Likewise.
981 * testsuite/28_regex/*: Likewise.
983 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
985 Backported from master:
986 2020-11-26 Jonathan Wakely <jwakely@redhat.com>
988 * testsuite/28_regex/algorithms/regex_match/basic/string_range_01_03.cc:
989 Add dg-timeout-factor directive.
990 * testsuite/28_regex/algorithms/regex_match/cstring_bracket_01.cc:
992 * testsuite/28_regex/algorithms/regex_match/ecma/char/backref.cc:
994 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/63199.cc:
996 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/anymatcher.cc:
998 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/cjk_match.cc:
1000 * testsuite/28_regex/algorithms/regex_match/ecma/wchar_t/hex.cc:
1002 * testsuite/28_regex/algorithms/regex_match/extended/wstring_locale.cc:
1004 * testsuite/28_regex/algorithms/regex_search/61720.cc: Likewise.
1005 * testsuite/28_regex/algorithms/regex_search/ecma/assertion.cc:
1007 * testsuite/28_regex/algorithms/regex_search/ecma/string_01.cc:
1009 * testsuite/28_regex/basic_regex/ctors/deduction.cc: Likewise.
1011 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1013 Backported from master:
1014 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1016 * include/std/stop_token: Check _GLIBCXX_HAS_GTHREADS using
1017 #ifdef instead of #if.
1018 (stop_token::_S_yield()): Check _GLIBCXX_HAS_GTHREADS before
1019 using __gthread_yield.
1021 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1023 Backported from master:
1024 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
1027 * include/bits/stl_algobase.h (__size_to_integer(float))
1028 (__size_to_integer(double), __size_to_integer(long double))
1029 (__size_to_integer(__float128)): Cast return type explicitly.
1031 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1033 Backported from master:
1034 2020-11-25 Jonathan Wakely <jwakely@redhat.com>
1036 * testsuite/17_intro/names.cc: Do not test 'v' on AIX.
1038 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1040 Backported from master:
1041 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
1043 * include/bits/basic_string.h (size_type, difference_type):
1044 Use allocator_traits to obtain the allocator's size_type and
1047 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1049 Backported from master:
1050 2020-09-01 Jonathan Wakely <jwakely@redhat.com>
1052 * include/std/chrono (duration::_S_gcd(intmax_t, intmax_t)):
1053 New helper function for finding GCD of two positive intmax_t
1055 (duration::__divide): New helper alias for dividing one period
1057 (duration::__is_harmonic): Use __divide not ratio_divide.
1058 (duration(const duration<R2, P2>&)): Require the duration rep
1059 types to be convertible.
1060 * testsuite/20_util/duration/cons/dr2094.cc: New test.
1061 * testsuite/20_util/duration/requirements/reduced_period.cc:
1062 Fix definition of unused member functions in test type.
1063 * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
1064 Adjust expected errors.
1066 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1068 Backported from master:
1069 2020-08-27 Jonathan Wakely <jwakely@redhat.com>
1071 * include/std/chrono (__duration_common_type): Ensure the
1072 reduced ratio is used. Remove unused partial specialization
1073 using __failure_type.
1074 (common_type): Pass reduced ratios to __duration_common_type.
1075 Add partial specializations for simple cases involving a single
1076 duration or time_point type.
1077 (duration::period): Use reduced ratio.
1078 (duration::operator+(), duration::operator-()): Return duration
1079 type using the reduced ratio.
1080 * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
1081 Adjust expected errors.
1082 * testsuite/20_util/duration/requirements/reduced_period.cc: New test.
1084 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1086 Backported from master:
1087 2020-09-03 Jonathan Wakely <jwakely@redhat.com>
1090 * include/std/tuple (_TupleConstraints<true, T...>): Use
1091 alternative is_constructible instead of std::is_constructible.
1092 * testsuite/20_util/tuple/cons/96592.cc: New test.
1094 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1096 Backported from master:
1097 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1099 * testsuite/20_util/is_aggregate/value.cc: Adjust for changes to
1100 definition of aggregates in C++20.
1101 * testsuite/20_util/optional/requirements.cc: Adjust for
1102 defaulted comparisons in C++20.
1104 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1106 Backported from master:
1107 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1109 * testsuite/20_util/tuple/78939.cc: Suppress warnings about
1110 deprecation of volatile-qualified structured bindings in C++20.
1111 * testsuite/20_util/variable_templates_for_traits.cc: Likewise
1112 for deprecation of is_pod in C++20
1114 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1116 Backported from master:
1117 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
1119 * include/std/optional (bad_optional_access): Define default
1120 constructor and destructor as defaulted.
1121 * testsuite/20_util/optional/bad_access.cc: New test.
1123 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1125 Backported from master:
1126 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
1128 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
1129 ranges::copy for positive values.
1130 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
1131 integral type and only call __copy_n for positive values.
1132 * testsuite/util/testsuite_iterators.h
1133 (random_access_iterator_wrapper::operator+=): Fix range check for
1135 (output_container, input_container, forward_container)
1136 (bidirectional_container, random_access_container): New alias
1138 * testsuite/25_algorithms/copy_n/5.cc: New test.
1140 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1142 Backported from master:
1143 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
1145 * include/std/atomic (atomic): Add static assertions.
1146 * testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
1148 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1150 Backported from master:
1151 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
1153 * include/bits/stl_iterator.h (move_iterator::operator=): Define.
1154 * testsuite/24_iterators/move_iterator/dr3265.cc: New test.
1156 2021-03-29 Paul Keir <paul.keir@uws.ac.uk>
1158 Backported from master:
1159 2020-06-15 Paul Keir <paul.keir@uws.ac.uk>
1161 * include/bits/char_traits.h (char_traits::move): constexpr move with
1162 overlap was using copy_backward incorrectly.
1163 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
1166 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1168 Backported from master:
1169 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1171 * testsuite/20_util/time_point_cast/rounding.cc: Remove
1172 duplicate dg-do directive and add c++17 effective target.
1174 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1176 Backported from master:
1177 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1179 * testsuite/30_threads/thread/cons/84535.cc: Use a custom
1181 * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
1183 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1185 Backported from master:
1186 2020-11-26 Jonathan Wakely <jwakely@redhat.com>
1188 * testsuite/lib/libstdc++.exp (libstdc++_init): Only set
1189 tool_timeout if it hasn't been set by the user already.
1191 2021-03-29 Moritz Sichert <sichert@in.tum.de>
1193 Backported from master:
1194 2021-03-23 Moritz Sichert <sichert@in.tum.de>
1196 * include/std/ranges (reverse_view::begin, reverse_view::end):
1197 Qualify make_reverse_iterator calls to avoid ADL.
1198 * testsuite/std/ranges/adaptors/reverse.cc: Test that
1199 views::reverse works when make_reverse_iterator is defined
1200 in an associated namespace.
1202 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1204 Backported from master:
1205 2021-03-22 Jonathan Wakely <jwakely@redhat.com>
1207 * include/bits/range_access.h (begin(T (&)[N]), end(T (&)[N])):
1208 Add missing 'noexcept' as per LWG 2280.
1209 (rbegin(T (&)[N]), rend(T (&)[N]), rbegin(initializer_list<T>))
1210 (rend(initializer_list<T>)): Add 'noexcept' as per LWG 3537.
1211 * testsuite/24_iterators/range_access/range_access.cc: Check for
1212 expected noexcept specifiers. Check result types of generic
1213 std::begin and std::end overloads.
1214 * testsuite/24_iterators/range_access/range_access_cpp14.cc:
1215 Check for expected noexcept specifiers.
1216 * testsuite/24_iterators/range_access/range_access_cpp17.cc:
1219 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1221 Backported from master:
1222 2021-03-11 Jonathan Wakely <jwakely@redhat.com>
1225 * include/std/stop_token (_Stop_state_t::_M_release_ownership):
1226 Use acq_rel memory ordering.
1228 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1230 Backported from master:
1231 2021-03-11 Jonathan Wakely <jwakely@redhat.com>
1234 * src/c++17/fs_dir.cc (recursive_directory_iterator): Use new
1235 helper function to check for permission denied errors.
1236 * src/filesystem/dir.cc (recursive_directory_iterator):
1238 * src/filesystem/dir-common.h (is_permission_denied_error): New
1241 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1243 Backported from master:
1244 2021-03-11 Jonathan Wakely <jwakely@redhat.com>
1247 * include/bits/random.h (normal_distribution): Use
1248 default-initializer for _M_saved and _M_saved_available.
1250 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1252 Backported from master:
1253 2021-03-10 Jonathan Wakely <jwakely@redhat.com>
1255 * include/bits/range_cmp.h (__eq_builtin_ptr_cmp): Remove.
1256 (ranges::equal_to, ranges::not_equal_to): Do not constrain
1257 with __eq_builtin_ptr_cmp.
1258 (ranges::less, ranges::greater, ranges::less_equal)
1259 (ranges::greater_equal): Do not constrain with
1260 __less_builtin_ptr_cmp.
1261 * libsupc++/compare (compare_three_way): Do not constrain with
1262 __3way_builtin_ptr_cmp.
1263 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc: Moved to...
1264 * testsuite/18_support/comparisons/object/lwg3530.cc: ...here.
1265 * testsuite/20_util/function_objects/range.cmp/lwg3530.cc: New test.
1267 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1269 Backported from master:
1270 2021-02-12 Jonathan Wakely <jwakely@redhat.com>
1272 * doc/xml/manual/status_cxx2014.xml: Document implementation
1273 specific properties of std::experimental::filesystem::rename.
1274 * doc/xml/manual/status_cxx2017.xml: Document implementation
1275 specific properties of std::filesystem::rename.
1276 * doc/html/*: Regenerate.
1277 * src/c++17/fs_ops.cc (fs::rename): Implement correct behaviour
1278 for directories on Windows.
1279 * src/filesystem/ops-common.h (__gnu_posix::rename): Use
1280 MoveFileExW on Windows.
1281 * testsuite/27_io/filesystem/operations/rename.cc: New test.
1282 * testsuite/experimental/filesystem/operations/rename.cc: New test.
1284 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1286 Backported from master:
1287 2021-02-12 Jonathan Wakely <jwakely@redhat.com>
1289 * testsuite/util/testsuite_fs.h (nonexistent_path): Add
1290 random number to the path.
1292 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1294 Backported from master:
1295 2021-02-12 Jonathan Wakely <jwakely@redhat.com>
1297 * include/experimental/internet (address_v6::to_string): Include
1299 (address_v6::loopback): Fix to be constexpr in C++14.
1300 * testsuite/experimental/net/internet/address/v6/members.cc:
1301 Test to_string() results.
1303 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1305 Backported from master:
1306 2021-02-12 Jonathan Wakely <jwakely@redhat.com>
1308 * include/experimental/internet (address_v6::any): Avoid using
1309 memcpy in constexpr function.
1310 (address_v6::loopback): Likewise.
1311 (make_address_v6): Fix missing return statements on error paths.
1312 * include/experimental/io_context: Avoid -Wdangling-else
1314 * testsuite/experimental/net/internet/address/v4/members.cc:
1315 Remove unused variables.
1316 * testsuite/experimental/net/internet/address/v6/members.cc:
1319 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1321 Backported from master:
1322 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
1324 * testsuite/25_algorithms/all_of/constexpr.cc: Check result of
1326 * testsuite/25_algorithms/any_of/constexpr.cc: Likewise.
1327 * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise.
1328 * testsuite/25_algorithms/copy_backward/constexpr.cc: Likewise.
1329 * testsuite/25_algorithms/count/constexpr.cc: Likewise.
1330 * testsuite/25_algorithms/equal/constexpr.cc: Likewise.
1331 * testsuite/25_algorithms/equal_range/constexpr.cc: Likewise.
1332 * testsuite/25_algorithms/fill/constexpr.cc: Likewise.
1333 * testsuite/25_algorithms/find_end/constexpr.cc: Likewise.
1334 * testsuite/25_algorithms/find_if/constexpr.cc: Likewise.
1335 * testsuite/25_algorithms/is_partitioned/constexpr.cc: Likewise.
1336 * testsuite/25_algorithms/is_permutation/constexpr.cc: Likewise.
1337 * testsuite/25_algorithms/is_sorted_until/constexpr.cc:
1339 * testsuite/25_algorithms/lexicographical_compare/constexpr.cc:
1341 * testsuite/25_algorithms/lower_bound/constexpr.cc: Likewise.
1342 * testsuite/25_algorithms/merge/constexpr.cc: Likewise.
1343 * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise.
1344 * testsuite/25_algorithms/none_of/constexpr.cc: Likewise.
1345 * testsuite/25_algorithms/partition_copy/constexpr.cc: Likewise.
1346 * testsuite/25_algorithms/remove_copy/constexpr.cc: Likewise.
1347 * testsuite/25_algorithms/remove_copy_if/constexpr.cc: Likewise.
1348 * testsuite/25_algorithms/remove_if/constexpr.cc: Likewise.
1349 * testsuite/25_algorithms/replace_if/constexpr.cc: Likewise.
1350 * testsuite/25_algorithms/reverse/constexpr.cc: Likewise.
1351 * testsuite/25_algorithms/reverse_copy/constexpr.cc: Likewise.
1352 * testsuite/25_algorithms/rotate_copy/constexpr.cc: Likewise.
1353 * testsuite/25_algorithms/search/constexpr.cc: Likewise.
1354 * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise.
1355 * testsuite/25_algorithms/set_intersection/constexpr.cc:
1357 * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc:
1359 * testsuite/25_algorithms/set_union/constexpr.cc: Likewise.
1360 * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise.
1361 * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise.
1363 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1365 Backported from master:
1366 2021-02-12 Jonathan Wakely <jwakely@redhat.com>
1369 * src/c++11/cxx11-ios_failure.cc (__ios_failure(const char*, int)):
1370 Change int parameter to error_code, to match std::ios_failure.
1371 (__throw_ios_failure(const char*, int)): Construct error_code
1374 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1376 Backported from master:
1377 2021-02-11 Jonathan Wakely <jwakely@redhat.com>
1380 * doc/xml/manual/status_cxx2011.xml: Document when support
1382 * doc/xml/manual/status_cxx2014.xml: Likewise.
1383 * doc/xml/manual/status_cxx2017.xml: Likewise.
1384 * doc/html/manual/status.html: Regenerate.
1386 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1388 Backported from master:
1389 2021-02-12 Jonathan Wakely <jwakely@redhat.com>
1392 * src/c++17/fs_ops.cc (fs::symlink_status): Re-enable workaround.
1394 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1396 Backported from master:
1397 2021-02-10 Jonathan Wakely <jwakely@redhat.com>
1400 * src/c++17/fs_ops.cc (fs::status): Re-enable workaround.
1402 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1404 Backported from master:
1405 2021-02-10 Jonathan Wakely <jwakely@redhat.com>
1407 * src/c++17/fs_ops.cc (fs::create_hard_link, fs::equivalent)
1408 (fs::remove): Use std::system_category() for error codes from
1410 * src/filesystem/ops.cc (fs::create_hard_link, fs::remove):
1413 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1415 Backported from master:
1416 2021-02-10 Jonathan Wakely <jwakely@redhat.com>
1418 * testsuite/27_io/filesystem/operations/proximate.cc: Fix typo
1419 in __MINGW32__ macro name.
1420 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
1421 * testsuite/27_io/filesystem/path/generation/proximate.cc:
1423 * testsuite/27_io/filesystem/path/generation/relative.cc:
1425 * testsuite/util/testsuite_fs.h: Likewise.
1427 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1429 Backported from master:
1430 2021-02-03 Jonathan Wakely <jwakely@redhat.com>
1432 * testsuite/19_diagnostics/error_code/operators/not_equal.cc:
1433 Add comparison with same category and different values.
1434 * testsuite/19_diagnostics/error_code/operators/less.cc:
1435 Likewise. Fix comparison involving different categories.
1436 * testsuite/19_diagnostics/error_code/operators/three_way.cc:
1438 * testsuite/19_diagnostics/error_condition/operators/less.cc:
1440 * testsuite/19_diagnostics/error_condition/operators/three_way.cc:
1443 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1445 Backported from master:
1446 2020-12-16 Jonathan Wakely <jwakely@redhat.com>
1449 * include/experimental/random: Only define contents for C++14
1451 * include/experimental/source_location: Likewise.
1452 * include/experimental/utility: Likewise.
1453 * testsuite/experimental/feat-lib-fund.cc: Include all LFTS
1454 headers that are present. Allow test to run for all modes.
1456 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1458 Backported from master:
1459 2020-12-16 Jonathan Wakely <jwakely@redhat.com>
1462 * acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Remove.
1463 * configure.ac: Regenerate.
1464 * config/os/generic/error_constants.h: Test POSIX errno macros
1465 directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros.
1466 * testsuite/19_diagnostics/headers/system_error/errc_std_c++0x.cc:
1468 * testsuite/19_diagnostics/headers/system_error/93151.cc: New
1471 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1473 Backported from master:
1474 2020-12-10 Jonathan Wakely <jwakely@redhat.com>
1477 * include/std/bit (__countl_one, __countr_one): Remove redundant
1480 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1482 Backported from master:
1483 2020-11-09 Jonathan Wakely <jwakely@redhat.com>
1485 * include/std/bit (__popcount): Remove redundant check for zero.
1487 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1489 Backported from master:
1490 2020-10-30 Jonathan Wakely <jwakely@redhat.com>
1492 * include/std/ranges (enable_borrowed_view<take_view<T>>)
1493 (enable_borrowed_view<drop_view<T>>)
1494 (enable_borrowed_view<drop_while_view<T>>)
1495 (enable_borrowed_view<reverse_view<T>>)
1496 (enable_borrowed_view<common_view<T>>)
1497 (enable_borrowed_view<elements_view<T>>): Add partial
1498 specializations as per P2017R1.
1499 * testsuite/std/ranges/adaptors/conditionally_borrowed.cc:
1502 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1504 Backported from master:
1505 2020-10-29 Jonathan Wakely <jwakely@redhat.com>
1507 * include/std/ranges (subrange::subrange(R&&)): Use
1508 direct-initialization instead of list-initialization, so a
1509 potential narrowing conversion from ranges::size(r) to the
1510 stored size isn't ill-formed.
1512 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1514 Backported from master:
1515 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
1518 * include/bits/random.tcc
1519 (discrete_distribution::param_type::_M_initialize)
1520 (piecewise_constant_distribution::param_type::_M_initialize)
1521 (piecewise_linear_distribution::param_type::_M_initialize):
1522 Add assertions for positive sums..
1523 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
1526 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1528 Backported from master:
1529 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
1531 * include/bits/random.h (__detail::_Mod): Revert last change.
1532 (__detail::__mod): Do not use _Mod for a==0 case.
1533 * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc:
1534 Check other cases with a==0. Also check runtime results.
1535 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
1538 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1540 Backported from master:
1541 2020-10-07 Jonathan Wakely <jwakely@redhat.com>
1543 * include/bits/random.h (__detail::_Mod): Avoid divide by zero.
1544 * testsuite/26_numerics/random/linear_congruential_engine/operators/call.cc:
1547 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1549 Backported from master:
1550 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
1552 * include/std/ranges (drop_view::begin()): Adjust constraints
1553 to match the correct condition for O(1) ranges::next (LWG 3482).
1554 * testsuite/std/ranges/adaptors/drop.cc: Check that iterator is
1555 cached for non-sized_range.
1557 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1559 Backported from master:
1560 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
1562 * include/std/ranges (transform_view, elements_view): Relax
1563 constraints on operator- for iterators, as per LWG 3483.
1564 * testsuite/std/ranges/adaptors/elements.cc: Check that we
1565 can take the difference of two iterators from a non-random
1567 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
1569 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1571 Backported from master:
1572 2020-10-28 Jonathan Wakely <jwakely@redhat.com>
1575 * include/bits/valarray_after.h (_DEFINE_EXPR_UNARY_OPERATOR)
1576 (_DEFINE_EXPR_BINARY_OPERATOR, _DEFINE_EXPR_BINARY_FUNCTION):
1577 Use elaborated-type-specifier and qualified-id to avoid
1578 ambiguities with QNX system headers.
1579 * testsuite/26_numerics/valarray/95592.cc: New test.
1581 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1583 Backported from master:
1584 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
1586 * include/bits/locale_conv.h (__str_codecvt_out_all):
1587 Add cast to compare operands of the same signedness.
1588 * include/bits/locale_facets_nonio.tcc
1589 (time_get::_M_extract_wday_or_month): Likewise.
1590 * include/bits/sstream.tcc (basic_stringbuf::overflow):
1592 * include/tr1/legendre_function.tcc (__sph_legendre): Use
1593 unsigned for loop variable.
1595 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1597 Backported from master:
1598 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1600 * include/bits/locale_conv.h (__do_str_codecvt, __str_codecvt_in_all):
1601 Add casts to compare types of the same signedness.
1603 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1605 Backported from master:
1606 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1608 * include/bits/ranges_algobase.h (__equal_fn): Remove unused
1611 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1613 Backported from master:
1614 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1616 * include/experimental/bits/shared_ptr.h (shared_ptr(auto_ptr&&))
1617 (operator=(auto_ptr&&)): Add diagnostic pragmas to suppress
1618 warnings for uses of std::auto_ptr.
1619 * include/experimental/type_traits (is_literal_type_v):
1620 Likewise, for use of std::is_literal_type.
1621 * include/std/condition_variable (condition_variable_any::_Unlock):
1622 Likewise, for use of std::uncaught_exception.
1624 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1626 Backported from master:
1627 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1629 * include/bits/fs_path.h (path::_List::type()): Avoid narrowing
1632 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1634 Backported from master:
1635 2020-09-07 Jonathan Wakely <jwakely@redhat.com>
1637 * include/std/ranges (__box): Simplify constraints as per LWG 3477.
1639 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1641 Backported from master:
1642 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1644 * include/std/ranges (ranges::iota_view::size()): Perform all
1645 calculations in the right unsigned types.
1646 * testsuite/std/ranges/iota/size.cc: New test.
1648 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1650 Backported from master:
1651 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1653 * include/experimental/executor (system_context::_M_run()):
1655 (system_context::join()): Do not join unless joinable.
1656 * testsuite/experimental/net/system_context/1.cc: New test.
1658 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1660 Backported from master:
1661 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1663 * include/bits/stl_iterator.h (inserter): Do not deduce
1664 iterator type (LWG 561).
1665 * testsuite/24_iterators/insert_iterator/dr561.cc: New test.
1667 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1669 Backported from master:
1670 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
1672 * include/bits/fs_path.h (path::_List::begin, path::_List::end):
1673 Add noexcept to match definitions in src/c++17/fs_path.cc.
1675 2021-03-29 Jonathan Wakely <jwakely@redhat.com>
1677 Backported from master:
1678 2020-10-27 Jonathan Wakely <jwakely@redhat.com>
1680 * src/c++17/fs_dir.cc (fs::directory_iterator::operator*):
1681 Add noexcept. Do not throw on precondition violation.
1683 2021-03-19 Jakub Jelinek <jakub@redhat.com>
1685 Backported from master:
1686 2021-02-23 Jakub Jelinek <jakub@redhat.com>
1689 * testsuite/21_strings/char_traits/requirements/char/99181.cc: New
1692 2021-03-19 Jakub Jelinek <jakub@redhat.com>
1694 Backported from master:
1695 2021-02-23 Jakub Jelinek <jakub@redhat.com>
1698 * include/bits/char_traits.h (char_traits<char>::compare): For
1699 constexpr evaluation don't call
1700 __gnu_cxx::char_traits<char_type>::compare but do the comparison loop
1703 2021-02-09 Jonathan Wakely <jwakely@redhat.com>
1705 Backported from master:
1706 2021-02-09 Jonathan Wakely <jwakely@redhat.com>
1709 * include/std/coroutine (coroutine_handle<P>::from_address): Add
1712 2021-01-13 Jonathan Wakely <jwakely@redhat.com>
1715 * include/std/mutex (call_once): Use NOLINT to suppress clang
1718 2021-01-11 Jonathan Wakely <jwakely@redhat.com>
1720 Backported from master:
1721 2020-12-02 Jonathan Wakely <jwakely@redhat.com>
1723 * python/libstdcxx/v6/printers.py (StdExpPathPrinter): Store the
1724 name of the type and pass it to the iterator.
1725 (StdPathPrinter): Likewise.
1726 * testsuite/libstdc++-prettyprinters/filesystem-ts.cc: New test.
1728 2021-01-11 Jonathan Wakely <jwakely@redhat.com>
1730 Backported from master:
1731 2020-12-16 Jonathan Wakely <jwakely@redhat.com>
1734 * include/ext/throw_allocator.h: Use __has_builtin to check for
1735 __builtin_sprintf support, and use std::sprintf if necessary.
1737 2021-01-11 Jonathan Wakely <jwakely@redhat.com>
1739 Backported from master:
1740 2020-12-02 Jonathan Wakely <jwakely@redhat.com>
1744 * python/libstdcxx/v6/printers.py (function_pointer_to_name):
1745 New helper function to get the name of a function from its
1747 (StdExpAnyPrinter.__init__): Use it.
1749 2021-01-11 Jonathan Wakely <jwakely@redhat.com>
1751 Backported from master:
1752 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1754 * testsuite/experimental/filesystem/filesystem_error/cons.cc:
1755 Remove -std=gnu++17 option.
1757 2021-01-08 Iain Sandoe <iain@sandoe.co.uk>
1759 Backported from master:
1760 2020-07-17 Iain Sandoe <iain@sandoe.co.uk>
1762 * include/std/coroutine: Mark the methods of the
1763 trivial awaitables as constexpr.
1765 2021-01-03 Iain Sandoe <iain@sandoe.co.uk>
1766 Jakub Jelinek <jakub@redhat.com>
1769 * configure: Regenerate.
1771 2020-12-03 Jonathan Wakely <jwakely@redhat.com>
1773 Backported from master:
1774 2020-12-03 Jonathan Wakely <jwakely@redhat.com>
1776 * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt:
1778 * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt:
1781 2020-12-01 Patrick Palka <ppalka@redhat.com>
1783 Backported from master:
1784 2020-10-12 Patrick Palka <ppalka@redhat.com>
1787 * include/std/ranges (take_view::_CI): Define this alias
1788 template as per LWG 3449 and remove ...
1789 (take_view::_Sentinel::_CI): ... this type alias.
1790 (take_view::_Sentinel::operator==): Adjust use of _CI
1791 accordingly. Define a second overload that accepts an iterator
1792 of the opposite constness as per LWG 3449.
1793 (take_while_view::_Sentinel::operator==): Likewise.
1794 * testsuite/std/ranges/adaptors/95322.cc: Add tests for LWG 3449.
1796 2020-11-26 Jonathan Wakely <jwakely@redhat.com>
1798 Backported from master:
1799 2020-11-26 Jonathan Wakely <jwakely@redhat.com>
1802 * testsuite/ext/stdio_filebuf/char/79820.cc: Do not pass invalid
1803 FILE* to constructor.
1805 2020-11-25 Jonathan Wakely <jwakely@redhat.com>
1807 Backported from master:
1808 2020-11-25 Jonathan Wakely <jwakely@redhat.com>
1811 * include/bits/iterator_concepts.h (__detail::__iter_without_category):
1813 (__iterator_traits::__cat): Use __detail::__iter_without_category.
1814 * testsuite/24_iterators/associated_types/iterator.traits.cc: New test.
1816 2020-11-25 Jonathan Wakely <jwakely@redhat.com>
1818 Backported from master:
1819 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
1821 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
1822 (__detail::__cat, __detail::__diff): Move to class scope in the
1823 relevant __iterator_traits specializations.
1824 (__iterator_traits<>): Use nested class templates instead of ones from
1826 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
1827 class scope in iterator_traits<common_iterator<I, S>>.
1828 (iterator_traits<common_iterator<I, S>>): Use nested class template
1829 instead of __detail::__common_iter_ptr.
1831 2020-11-24 Jonathan Wakely <jwakely@redhat.com>
1833 Backported from master:
1834 2020-10-02 Jonathan Wakely <jwakely@redhat.com>
1836 * testsuite/29_atomics/atomic_float/value_init.cc: Use float
1837 instead of double so that __atomic_load_8 isn't needed.
1839 2020-11-20 Jonathan Wakely <jwakely@redhat.com>
1841 Backported from master:
1842 2020-11-20 Jonathan Wakely <jwakely@redhat.com>
1845 * include/std/regex (pmr::smatch, pmr::wsmatch): Declare using
1846 underlying __normal_iterator type, not nested typedef
1847 basic_string::const_iterator.
1849 2020-11-20 Jonathan Wakely <jwakely@redhat.com>
1852 * include/std/stop_token (_Stop_state_t): Define default
1853 constructor as user-provided not defaulted.
1855 2020-11-20 Jonathan Wakely <jwakely@redhat.com>
1857 Backported from master:
1858 2020-11-19 Jonathan Wakely <jwakely@redhat.com>
1861 * config/os/gnu-linux/os_defines.h (_GLIBCXX_NATIVE_THREAD_ID):
1862 Define new macro to get reliable thread ID.
1863 * include/std/stop_token (_Stop_state_t::_M_request_stop):
1864 Use new macro if it's defined.
1865 (_Stop_state_t::_M_remove_callback): Likewise.
1866 * include/std/thread (this_thread::get_id): Likewise.
1867 * testsuite/30_threads/jthread/95989.cc: New test.
1868 * testsuite/30_threads/this_thread/95989.cc: New test.
1870 2020-11-18 Patrick Palka <ppalka@redhat.com>
1872 Backported from master:
1873 2020-11-18 Patrick Palka <ppalka@redhat.com>
1875 * include/std/ranges (join_view::_Iterator::_M_satisfy): Uglify
1876 local variable inner.
1877 (join_view::_Iterator::operator->): Use _Inner_iter instead of
1878 _Outer_iter in the function signature as per LWG 3500.
1879 * testsuite/std/ranges/adaptors/join.cc (test08): Test it.
1881 2020-11-18 Jonathan Wakely <jwakely@redhat.com>
1883 Backported from master:
1884 2020-10-06 Jonathan Wakely <jwakely@redhat.com>
1886 * include/std/ranges (join_view): Remove deduction guide.
1887 (views::join): Add explicit template argument list to prevent
1888 deducing the wrong type.
1889 * testsuite/std/ranges/adaptors/join.cc: Move test for LWG 3474
1891 * testsuite/std/ranges/adaptors/join_lwg3474.cc: Removed.
1893 2020-11-18 Jonathan Wakely <jwakely@redhat.com>
1895 Backported from master:
1896 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
1898 * include/std/ranges (join_view): Add deduction guide (LWG 3474).
1899 * testsuite/std/ranges/adaptors/join_lwg3474.cc: New test.
1901 2020-11-18 Jonathan Wakely <jwakely@redhat.com>
1903 Backported from master:
1904 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
1906 * include/std/version (__cpp_lib_array_constexpr)
1907 (__cpp_lib_constexpr_char_traits): Only define C++17 value when
1910 2020-11-18 Jonathan Wakely <jwakely@redhat.com>
1912 Backported from master:
1913 2020-06-15 Jonathan Wakely <jwakely@redhat.com>
1915 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
1916 Update value for C++20.
1917 * include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
1918 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
1919 Update expected value.
1921 2020-11-18 Jonathan Wakely <jwakely@redhat.com>
1923 Backported from master:
1924 2020-11-17 Jonathan Wakely <jwakely@redhat.com>
1927 * include/precompiled/stdc++.h: Include <coroutine>.
1928 * include/std/version (__cpp_lib_span): Check __cpp_lib_concepts
1931 2020-11-17 Patrick Palka <ppalka@redhat.com>
1933 Backported from master:
1934 2020-11-17 Patrick Palka <ppalka@redhat.com>
1937 * include/bits/ranges_algo.h (__search_n_fn::operator()): Check
1938 random_access_iterator before using the backtracking
1939 implementation. When the backwards scan fails prematurely,
1940 reset __remainder appropriately.
1941 * testsuite/25_algorithms/search_n/97828.cc: New test.
1943 2020-11-16 Jonathan Wakely <jwakely@redhat.com>
1945 Backported from master:
1946 2020-11-13 Jonathan Wakely <jwakely@redhat.com>
1949 * src/c++11/futex.cc (relative_timespec): Remove redundant check
1951 * testsuite/30_threads/future/members/93456.cc: New.
1953 2020-11-16 Jonathan Wakely <jwakely@redhat.com>
1955 Backported from master:
1956 2020-11-16 Jonathan Wakely <jwakely@redhat.com>
1958 * src/c++11/futex.cc (relative_timespec): New function to
1959 create relative time from two absolute times.
1960 (__atomic_futex_unsigned_base::_M_futex_wait_until): Use
1963 2020-11-16 Jonathan Wakely <jwakely@redhat.com>
1965 Backported from master:
1966 2020-11-12 Jonathan Wakely <jwakely@redhat.com>
1968 * include/std/future (future::wait_for): Do not wait for
1969 durations less than or equal to zero.
1970 * testsuite/30_threads/future/members/poll.cc: New test.
1972 2020-11-13 Jonathan Wakely <jwakely@redhat.com>
1974 Backported from master:
1975 2020-11-13 Jonathan Wakely <jwakely@redhat.com>
1978 * include/ext/numeric_traits.h (__glibcxx_signed)
1979 (__glibcxx_digits, __glibcxx_min, __glibcxx_max): Remove
1981 (__is_integer_nonstrict::__width): Define new constant.
1982 (__numeric_traits_integer): Define constants in terms of each
1983 other and __is_integer_nonstrict::__width, rather than the
1985 (_GLIBCXX_INT_N_TRAITS): Macro to define explicit
1986 specializations for non-standard integer types.
1988 2020-11-13 Jonathan Wakely <jwakely@redhat.com>
1991 * testsuite/std/ranges/iota/96042.cc: Only assert that the
1992 difference type is wider than long long if __int128 is
1995 2020-11-12 Jonathan Wakely <jwakely@redhat.com>
1997 Backported from master:
1998 2020-08-20 Jonathan Wakely <jwakely@redhat.com>
2000 * include/bits/iterator_concepts.h [__STRICT_ANSI__]
2001 (incrementable_traits<__int128>): Define specialization.
2002 (incrementable_traits<unsigned __int128>): Likewise.
2003 * testsuite/std/ranges/iota/96042.cc: Test iota_view with
2006 2020-11-12 Jonathan Wakely <jwakely@redhat.com>
2008 Backported from master:
2009 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2010 Patrick Palka <ppalka@redhat.com>
2013 * include/bits/range_access.h (__detail::__to_unsigned_like):
2014 Do not use make_unsigned_t<T> in the return type, as it can
2015 result in an error before the integral<T> constraint is checked.
2016 [__STRICT_ANSI__]: Add overloads for 128-bit integer types.
2017 (__detail::__make_unsigned_like_t): Define as the return type
2018 of __to_unsigned_like.
2019 * testsuite/std/ranges/subrange/96042.cc: New test.
2021 2020-11-12 Jonathan Wakely <jwakely@redhat.com>
2023 Backported from master:
2024 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2027 * include/ext/numeric_traits.h (__is_integer_nonstrict): New
2028 trait which is true for 128-bit integers even in strict modes.
2029 (__numeric_traits_integer, __numeric_traits): Use
2030 __is_integer_nonstrict instead of __is_integer.
2031 * include/std/limits [__STRICT_ANSI__ && __SIZEOF_INT128__]
2032 (numeric_limits<__int128>, (numeric_limits<unsigned __int128>):
2034 * testsuite/std/ranges/iota/96042.cc: New test.
2036 2020-11-11 Paul Scharnofske <asynts@gmail.com>
2038 Backported from master:
2039 2020-11-11 Paul Scharnofske <asynts@gmail.com>
2041 * include/std/thread (jthread::operator=(jthread&&)): Transfer
2042 any existing state to a temporary that will request a stop and
2044 * testsuite/30_threads/jthread/jthread.cc: Test move assignment.
2046 2020-11-05 Jonathan Wakely <jwakely@redhat.com>
2048 Backported from master:
2049 2020-11-05 Jonathan Wakely <jwakely@redhat.com>
2052 * include/std/optional (operator==, operator!=, operator<)
2053 (operator>, operator<=, operator>=): Fix types used in
2055 * testsuite/20_util/optional/relops/96269.cc: New test.
2057 2020-11-05 Jonathan Wakely <jwakely@redhat.com>
2059 Backported from master:
2060 2020-11-05 Jonathan Wakely <jwakely@redhat.com>
2063 * src/filesystem/dir.cc (recursive_directory_iterator): Call the
2064 right overload of _Dir::advance.
2065 * testsuite/experimental/filesystem/iterators/97731.cc: New test.
2067 2020-11-05 Jonathan Wakely <jwakely@redhat.com>
2069 Backported from master:
2070 2020-10-10 Jonathan Wakely <jwakely@redhat.com>
2073 * doc/html/manual/source_code_style.html: Regenerate.
2074 * doc/xml/manual/appendix_contributing.xml: Add __deref to
2076 * include/debug/functions.h (_Irreflexive_checker::__deref):
2078 * testsuite/17_intro/badnames.cc: Check __deref.
2080 2020-11-04 Jonathan Wakely <jwakely@redhat.com>
2082 Backported from master:
2083 2020-11-04 Jonathan Wakely <jwakely@redhat.com>
2086 * doc/xml/manual/evolution.xml: Document change to base class.
2087 * doc/html/manual/api.html: Regenerate.
2089 2020-11-04 Jonathan Wakely <jwakely@redhat.com>
2091 * doc/xml/manual/evolution.xml: Document new C++20 headers.
2092 * doc/html/*: Regenerate.
2094 2020-11-04 Jonathan Wakely <jwakely@redhat.com>
2096 Backported from master:
2097 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
2099 * doc/xml/manual/evolution.xml: Document deprecation of
2100 __is_nullptr_t and removal of std::allocator members.
2101 * doc/html/manual/api.html: Regenerate.
2103 2020-11-04 Jonathan Wakely <jwakely@redhat.com>
2105 Backported from master:
2106 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
2108 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
2109 * doc/xml/manual/evolution.xml: Likewise.
2110 * doc/html/manual/api.html: Regenerate.
2111 * doc/html/manual/containers.html: Regenerate.
2113 2020-10-29 Patrick Palka <ppalka@redhat.com>
2115 Backported from master:
2116 2020-10-29 Patrick Palka <ppalka@redhat.com>
2118 * testsuite/25_algorithms/lexicographical_compare/constrained.cc:
2119 (test03): Fix initializing the vector vy with the array y of size 4.
2121 2020-10-28 Patrick Palka <ppalka@redhat.com>
2123 Backported from master:
2124 2020-10-23 Patrick Palka <ppalka@redhat.com>
2126 * include/std/ranges (single_view::single_view): Mark the
2127 in place constructor explicit as per LWG 3428.
2128 (take_view): Remove the constraint on the deduction guide's
2129 template parameter as per LWG 3447.
2131 2020-10-21 Patrick Palka <ppalka@redhat.com>
2133 Backported from master:
2134 2020-09-22 Patrick Palka <ppalka@redhat.com>
2136 * include/std/span (span::front): Remove static_assert.
2137 (span::back): Likewise.
2138 (span::operator[]): Likewise.
2139 * testsuite/23_containers/span/back_neg.cc: Rewrite to verify
2140 that we check the preconditions of back() only when it's called.
2141 * testsuite/23_containers/span/front_neg.cc: Likewise for
2143 * testsuite/23_containers/span/index_op_neg.cc: Likewise for
2146 2020-10-21 Patrick Palka <ppalka@redhat.com>
2148 Backported from master:
2149 2020-10-12 Patrick Palka <ppalka@redhat.com>
2151 * include/std/ranges (take_while_view::begin): Constrain the
2152 const overload further as per LWG 3450.
2153 (take_while_view::end): Likewise.
2154 * testsuite/std/ranges/adaptors/take_while.cc: Add test for LWG
2157 2020-10-21 Patrick Palka <ppalka@redhat.com>
2159 Backported from master:
2160 2020-09-22 Patrick Palka <ppalka@redhat.com>
2162 * include/bits/stl_algo.h (__sample): Exit early when the
2163 input range is empty.
2164 * testsuite/25_algorithms/sample/3.cc: New test.
2166 2020-10-21 Patrick Palka <ppalka@redhat.com>
2168 Backported from master:
2169 2020-09-22 Patrick Palka <ppalka@redhat.com>
2171 * include/bits/stl_algo.h (for_each_n): Mark constexpr for C++20.
2172 (search): Likewise for the overload that takes a searcher.
2173 * testsuite/25_algorithms/for_each/constexpr.cc: Test constexpr
2175 * testsuite/25_algorithms/search/constexpr.cc: Test constexpr
2176 std::search overload that takes a searcher.
2178 2020-10-21 Patrick Palka <ppalka@redhat.com>
2180 Backported from master:
2181 2020-08-27 Patrick Palka <ppalka@redhat.com>
2184 * include/std/ranges (transform_view::sentinel::__distance_from):
2185 Give this a deduced return type.
2186 (transform_view::sentinel::operator-): Adjust the return type so
2187 that it's based on the constness of the iterator rather than
2188 that of the sentinel.
2189 * testsuite/std/ranges/adaptors/95322.cc: Refer to LWG 3488.
2191 2020-10-21 Patrick Palka <ppalka@redhat.com>
2193 Backported from master:
2194 2020-08-27 Patrick Palka <ppalka@redhat.com>
2196 * include/std/ranges (elements_view::begin): Adjust constraints.
2197 (elements_view::end): Likewise.
2198 (elements_view::_Sentinel::operator==): Templatize to take both
2199 _Iterator<true> and _Iterator<false>.
2200 (elements_view::_Sentinel::operator-): Likewise.
2201 * testsuite/std/ranges/adaptors/elements.cc: Add testcase for
2202 the example from P1994R1.
2203 * testsuite/std/ranges/adaptors/lwg3406.cc: New test.
2205 2020-10-21 Patrick Palka <ppalka@redhat.com>
2207 Backported from master:
2208 2020-08-27 Patrick Palka <ppalka@redhat.com>
2210 * include/std/ranges (elements_view::end): Replace these two
2211 overloads with four new overloads.
2212 (elements_view::_Iterator::operator==): Remove.
2213 (elements_view::_Iterator::operator-): Likewise.
2214 (elements_view::_Sentinel): Define.
2216 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
2218 Backported from master:
2219 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2221 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
2222 Use gdb.Type.strip_typedefs().
2223 * testsuite/libstdc++-prettyprinters/compat.cc: Use a typedef in
2224 the emulated old type.
2226 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
2228 Backported from master:
2229 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
2231 * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI]
2232 (basic_string(const _CharT*, const _Alloc&)): Constrain to
2233 require an allocator-like type to fix CTAD ambiguity (LWG 3706).
2235 * include/bits/basic_string.tcc [!_GLIBCXX_USE_CXX11_ABI]
2236 (basic_string(const _CharT*, const _Alloc&)): Remove non-inline
2238 * testsuite/21_strings/basic_string/cons/char/deduction.cc:
2240 * testsuite/21_strings/basic_string/cons/wchar_t/deduction.cc:
2243 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
2245 Backported from master:
2246 2020-10-14 Jonathan Wakely <jwakely@redhat.com>
2248 * testsuite/21_strings/basic_string/allocator/char/minimal.cc:
2249 Do not require cxx11-abi effective target.
2250 * testsuite/21_strings/basic_string/allocator/wchar_t/minimal.cc:
2252 * testsuite/27_io/basic_fstream/cons/base.cc: Likewise.
2254 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
2256 Backported from master:
2257 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
2259 * include/bits/ios_base.h (ios_base::failure): Add constructors
2260 takeing error_code argument. Add code() member function.
2261 * testsuite/27_io/ios_base/failure/cxx11.cc: Allow test to
2262 run for the old ABI but do not check for derivation from
2264 * testsuite/27_io/ios_base/failure/error_code.cc: New test.
2266 2020-10-20 Nuno Lopes <nuno.lopes@ist.utl.pt>
2268 Backported from master:
2269 2020-10-13 Nuno Lopes <nuno.lopes@ist.utl.pt>
2271 * include/bits/stl_algo.h (any_of): Fix incorrect description
2274 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
2276 Backported from master:
2277 2020-10-12 Jonathan Wakely <jwakely@redhat.com>
2279 * include/bits/stl_algobase.h (copy, move, copy_backward)
2280 (move_backward): Fix documentation for returned iterator.
2282 2020-10-20 Jonathan Wakely <jwakely@redhat.com>
2284 Backported from master:
2285 2020-09-24 Jonathan Wakely <jwakely@redhat.com>
2287 * doc/xml/manual/configure.xml: Correct name of option.
2288 * doc/html/*: Regenerate.
2290 2020-10-19 Jonathan Wakely <jwakely@redhat.com>
2292 Backported from master:
2293 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
2296 * include/std/memory (assume_aligned): Do not use
2297 __builtin_assume_aligned during constant evaluation.
2298 * testsuite/20_util/assume_aligned/1.cc: Improve test.
2299 * testsuite/20_util/assume_aligned/97132.cc: New test.
2301 2020-10-15 Jonathan Wakely <jwakely@redhat.com>
2303 Backported from master:
2304 2020-10-15 Jonathan Wakely <jwakely@redhat.com>
2306 * include/std/concepts: Fix typos in copyright notice.
2307 * include/std/ranges: Likewise.
2309 2020-10-15 Jonathan Wakely <jwakely@redhat.com>
2311 * doc/xml/manual/status_cxx2020.xml: Remove red background for
2313 * doc/html/manual/status.html: Regenerate.
2315 2020-10-13 Patrick Palka <ppalka@redhat.com>
2317 Backported from master:
2318 2020-10-08 Patrick Palka <ppalka@redhat.com>
2321 * include/bits/ranges_uninitialized.h:
2322 (__construct_at_fn::operator()): Rewrite in terms of
2323 std::construct_at. Declare it conditionally noexcept. Qualify
2324 calls to declval in its requires-clause.
2325 * testsuite/20_util/specialized_algorithms/construct_at/95788.cc:
2328 2020-10-08 Jonathan Wakely <jwakely@redhat.com>
2330 Backported from master:
2331 2020-10-07 Jonathan Wakely <jwakely@redhat.com>
2333 * include/bits/random.h (seed_seq(initializer_list<T>)): Rename
2334 parameter to use reserved name.
2335 * include/bits/ranges_algo.h (shift_left, shift_right): Rename
2336 template parameters to use reserved name.
2337 * testsuite/17_intro/names.cc: Check "il". Do not check "d" and
2340 2020-10-06 Patrick Palka <ppalka@redhat.com>
2342 Backported from master:
2343 2020-10-02 Patrick Palka <ppalka@redhat.com>
2345 * include/bits/stl_iterator.h (reverse_iterator::iter_move):
2346 Define for C++20 as per P0896.
2347 (reverse_iterator::iter_swap): Likewise.
2348 (move_iterator::operator*): Apply P0896 changes for C++20.
2349 (move_iterator::operator[]): Likewise.
2350 * testsuite/24_iterators/reverse_iterator/cust.cc: New test.
2352 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
2354 Backported from master:
2355 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
2358 * src/c++17/fs_path.cc (path::_Parser::root_path()): Check
2359 for empty string before inspecting the first character.
2360 * testsuite/27_io/filesystem/path/append/source.cc: Append
2361 empty string_view to path.
2363 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
2365 Backported from master:
2366 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
2370 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
2371 Use correct value category in __use_alloc call.
2372 * testsuite/20_util/tuple/cons/96803.cc: Check with constructors
2373 that require correct value category to be used.
2375 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
2377 Backported from master:
2378 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
2382 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
2383 Replace parameter pack with a type parameter and a pack and pass
2384 the first type to __use_alloc.
2385 * testsuite/20_util/tuple/cons/96803.cc: New test.
2387 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
2389 Backported from master:
2390 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2393 * src/c++17/fs_ops.cc (read_symlink): Use posix::lstat instead
2394 of calling ::lstat directly.
2395 * src/filesystem/ops.cc (read_symlink): Likewise.
2397 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
2399 Backported from master:
2400 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2403 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Do not depend on
2404 $enable_libstdcxx_filesystem_ts.
2405 * configure: Regenerate.
2407 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
2409 Backported from master:
2410 2020-09-20 Jonathan Wakely <jwakely@redhat.com>
2413 * include/std/functional (bind_front): Fix order of parameters
2414 in is_nothrow_constructible_v specialization.
2415 * testsuite/20_util/function_objects/bind_front/97101.cc: New test.
2417 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
2419 Backported from master:
2420 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
2423 * src/c++17/memory_resource.cc (munge_options): Round
2424 max_blocks_per_chunk to a multiple of four.
2425 (__pool_resource::_M_alloc_pools()): Simplify slightly.
2426 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc:
2427 Check that valid pointers are returned when small values are
2428 used for max_blocks_per_chunk.
2430 2020-09-03 Jonathan Wakely <jwakely@redhat.com>
2432 Backported from master:
2433 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
2435 * include/Makefile.am: Remove bits/int_limits.h.
2436 * include/Makefile.in: Regenerate.
2437 * include/bits/int_limits.h: Removed.
2438 * include/bits/parse_numbers.h (_Select_int_base): Replace
2439 __int_limits with __int_traits.
2440 * include/bits/range_access.h (_SSize::operator()): Likewise.
2441 * include/ext/numeric_traits.h (__numeric_traits_integer): Add
2443 (__int_traits): New alias template.
2444 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2445 (__countr_zero, __countr_one, __popcount, __bit_ceil)
2446 (__bit_floor, __bit_width) Replace __int_limits with
2448 * include/std/charconv (__to_chars_8, __from_chars_binary)
2449 (__from_chars_alpha_to_num, from_chars): Likewise.
2450 * include/std/memory_resource (polymorphic_allocator::allocate)
2451 (polymorphic_allocator::allocate_object): Likewise.
2452 * include/std/string_view (basic_string_view::_S_compare):
2454 * include/std/utility (cmp_equal, cmp_less, in_range): Likewise.
2456 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
2458 Backported from master:
2459 2020-08-28 Jonathan Wakely <jwakely@redhat.com>
2462 * include/std/numeric (__abs_integral): Replace with ...
2463 (__detail::__absu): New function template that returns an
2464 unsigned type, guaranteeing it can represent the most
2465 negative signed value.
2466 (__detail::__gcd, __detail::__lcm): Require arguments to
2467 be unsigned and therefore already non-negative.
2468 (gcd, lcm): Convert arguments to absolute value as unsigned
2469 type before calling __detail::__gcd or __detail::__lcm.
2470 * include/experimental/numeric (gcd, lcm): Likewise.
2471 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust expected
2473 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
2474 * testsuite/26_numerics/gcd/92978.cc: New test.
2475 * testsuite/26_numerics/lcm/92978.cc: New test.
2476 * testsuite/experimental/numeric/92978.cc: New test.
2478 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
2480 Backported from master:
2481 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
2484 * include/bits/cpp_type_traits.h (__is_memcmp_ordered):
2485 New trait that says if memcmp can be used for ordering.
2486 (__is_memcmp_ordered_with): Likewise, for two types.
2487 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
2488 Use new traits instead of __is_byte and __numeric_traits.
2489 * include/bits/stl_algobase.h (__lexicographical_compare_aux1)
2490 (__is_byte_iter): Likewise.
2491 * include/std/array (operator<=>): Likewise. Only use memcmp
2492 when std::is_constant_evaluated() is false.
2493 * testsuite/23_containers/array/comparison_operators/96851.cc:
2495 * testsuite/23_containers/array/tuple_interface/get_neg.cc:
2496 Adjust dg-error line numbers.
2498 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
2500 * include/bits/stl_iterator.h (counted_iterator::operator++(int)):
2501 Use __throw_exception_again macro.
2503 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
2505 Backported from master:
2506 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
2509 * include/experimental/string_view (basic_string_view):
2510 Enable debug assertions.
2511 * include/std/string_view (basic_string_view):
2514 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
2516 Backported from master:
2517 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
2520 * include/std/variant (_Variant_storage): Replace implicit
2521 conversions from size_t to __index_type with explicit casts.
2523 2020-08-21 Jonathan Wakely <jwakely@redhat.com>
2525 Backported from master:
2526 2020-08-21 Jonathan Wakely <jwakely@redhat.com>
2529 * testsuite/25_algorithms/pstl/feature_test-2.cc: Require
2530 tbb-backend effective target.
2531 * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
2532 * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
2533 * testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
2535 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2537 Backported from master:
2538 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
2540 * include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST): New
2541 macro for "use 'foo' instead" message in deprecated warnings.
2542 * include/bits/ios_base.h (io_state, open_mode, seek_dir)
2543 (streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST.
2544 * include/std/streambuf (stossc): Replace C++11 attribute
2545 with _GLIBCXX_DEPRECATED_SUGGEST.
2546 * include/std/type_traits (__is_nullptr_t): Use
2547 _GLIBCXX_DEPRECATED_SUGGEST instead of _GLIBCXX_DEPRECATED.
2548 * testsuite/27_io/types/1.cc: Check for deprecated warnings.
2549 Also check for io_state, open_mode and seek_dir typedefs.
2551 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
2554 * testsuite/experimental/net/execution_context/make_service.cc:
2555 Add dg-require-gthreads.
2556 * testsuite/experimental/net/executor/1.cc: Likewise.
2557 * testsuite/experimental/net/headers.cc: Likewise.
2558 * testsuite/experimental/net/internet/address/v4/comparisons.cc:
2560 * testsuite/experimental/net/internet/address/v4/cons.cc:
2562 * testsuite/experimental/net/internet/address/v4/creation.cc:
2564 * testsuite/experimental/net/internet/address/v4/members.cc:
2566 * testsuite/experimental/net/internet/resolver/base.cc:
2568 * testsuite/experimental/net/internet/resolver/ops/lookup.cc:
2570 * testsuite/experimental/net/internet/resolver/ops/reverse.cc:
2572 * testsuite/experimental/net/socket/basic_socket.cc: Likewise.
2573 * testsuite/experimental/net/timer/waitable/cons.cc: Likewise.
2574 * testsuite/experimental/net/timer/waitable/dest.cc: Likewise.
2575 * testsuite/experimental/net/timer/waitable/ops.cc: Likewise.
2577 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2579 Backported from master:
2580 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
2583 * src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS]
2584 (stat_type): Change to __stat64.
2585 (stat): Use _wstat64.
2587 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
2589 Backported from master:
2590 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
2593 * include/debug/bitset (bitset::operator==): Call _M_base() on
2595 (bitset::operator!=): Likewise, but don't define it at all when
2596 default comparisons are supported by the compiler.
2597 * testsuite/23_containers/bitset/operations/96303.cc: New test.
2599 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
2601 Backported from master:
2602 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
2605 * src/c++17/fs_ops.cc (fs::read_symlink): Return an error
2606 immediately for non-symlinks.
2607 * src/filesystem/ops.cc (fs::read_symlink): Likewise.
2609 2020-07-23 Release Manager
2611 * GCC 10.2.0 released.
2613 2020-07-09 Jonathan Wakely <jwakely@redhat.com>
2615 Backported from master:
2616 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
2618 * include/bits/unique_ptr.h (operator<<): Define for C++20.
2619 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
2620 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
2622 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
2624 2020-07-09 Jonathan Wakely <jwakely@redhat.com>
2626 Backported from master:
2627 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
2630 * include/std/ranges (transform_view::_Sentinel): Allow hidden
2631 friends to work with _Iterator<true> and _Iterator<false>.
2632 (join_view::_Sentinel): Likewise.
2633 * testsuite/std/ranges/adaptors/95322.cc: New test.
2635 2020-07-09 Jonathan Wakely <jwakely@redhat.com>
2637 Backported from master:
2638 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
2641 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
2642 Add comment about single-threaded behaviour.
2643 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
2644 class member access out of loop.
2645 (synchronized_pool_resource::synchronized_pool_resource())
2646 (synchronized_pool_resource::~synchronized_pool_resource())
2647 (synchronized_pool_resource::release()): Check __gthread_active_p
2648 before creating and/or deleting the thread-specific data key.
2649 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
2651 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
2652 path for single-threaded case.
2653 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
2654 Likewise. Return if unable to find a pool that owns the allocation.
2655 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
2657 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
2659 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
2662 2020-07-09 Jonathan Wakely <jwakely@redhat.com>
2664 Backported from master:
2665 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
2668 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
2670 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
2672 (random_device::_M_init): Use __x86_rdseed_rdrand when both
2673 instructions are available.
2674 * testsuite/26_numerics/random/random_device/94087.cc: New test.
2676 2020-07-02 Ville Voutilainen <ville.voutilainen@gmail.com>
2678 Backported from master:
2679 2020-07-02 Ville Voutilainen <ville.voutilainen@gmail.com>
2682 * include/std/variant
2683 (_Copy_assign_base::operator=(const _Copy_assign_base&):
2684 Do the move-assignment from a temporary so that the temporary
2685 is constructed with an explicit index.
2686 * testsuite/20_util/variant/91807.cc: New.
2688 2020-07-02 Jonathan Wakely <jwakely.gcc@gmail.com>
2690 Backported from master:
2691 2020-07-02 Jonathan Wakely <jwakely.gcc@gmail.com>
2695 * testsuite/29_atomics/atomic_float/1.cc: Use different values
2697 * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
2699 2020-07-01 Jonathan Wakely <jwakely@redhat.com>
2701 Backported from master:
2702 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
2705 * include/bits/atomic_base.h (__atomic_impl::load): Add
2706 const-qualifier to parameter so that _Tp is deduced as the
2707 non-const type, and use _Val to get the unqualified type.
2708 (__atomic_impl::exchange): Use the _Val alias to remove
2709 volatile from the reinterpret_cast result type.
2710 * testsuite/29_atomics/atomic_float/95282.cc: New test.
2712 2020-07-01 Jonathan Wakely <jwakely@redhat.com>
2714 Backported from master:
2715 2020-07-01 Jonathan Wakely <jwakely@redhat.com>
2718 * include/bits/regex.h (operator==, operator!=): Remove noexcept
2719 equality comparisons for match_results.
2720 * testsuite/28_regex/match_results/94627.cc: New test.
2722 2020-06-29 Ville Voutilainen <ville.voutilainen@gmail.com>
2724 Backported from master:
2725 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
2728 * include/std/variant (_Uninitialized):
2729 Adjust the condition and the comment.
2730 * testsuite/20_util/variant/95915.cc: New.
2731 * testsuite/20_util/variant/compile.cc: Add new test.
2733 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2735 Backported from master:
2736 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2738 * include/std/charconv (__from_chars_binary): Ignore leading zeros.
2739 * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
2741 * testsuite/20_util/from_chars/3.cc: New test.
2743 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2745 Backported from master:
2746 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2748 * include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
2749 * include/std/charconv (__detail::__to_chars): Avoid
2750 -Wsign-compare warning.
2752 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2754 Backported from master:
2755 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2758 * include/std/charconv (__to_chars_i): Check for zero-sized
2759 buffer unconditionally.
2760 * testsuite/20_util/to_chars/95851.cc: New test.
2762 2020-06-22 Jason Merrill <jason@redhat.com>
2764 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
2765 Remove greedy_ops tests.
2766 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
2767 Remove greedy_ops tests.
2769 2020-06-11 Patrick Palka <ppalka@redhat.com>
2772 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
2773 Also check that the iterator and sentinel have the same type before
2774 applying the unwrapping optimization for __normal_iterator.
2775 Split the check into two, one for the first iterator/sentinel
2776 pair and another for second iterator/sentinel pair. Remove uses
2777 of __niter_base, and remove uses of std::move on a
2779 * include/bits/ranges_algobase.h (__equal_fn): Likewise.
2780 (__copy_or_move): Likewise. Perform similar adjustments for
2781 the reverse_iterator and move_iterator optimizations. Inline
2782 the checks into the if-constexprs, and use using-declarations to
2783 make them less visually noisy. Remove uses of __niter_wrap.
2784 (__copy_or_move_backward): Likewise.
2785 * testsuite/25_algorithms/copy/95578.cc: New test.
2786 * testsuite/25_algorithms/copy_backward/95578.cc: New test.
2787 * testsuite/25_algorithms/equal/95578.cc: New test.
2788 * testsuite/25_algorithms/lexicographical_compare/95578.cc: New test.
2789 * testsuite/25_algorithms/move/95578.cc: New test.
2790 * testsuite/25_algorithms/move_backward/95578.cc: New test.
2792 2020-05-28 Patrick Palka <ppalka@redhat.com>
2795 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
2796 Remove and instead define it ...
2797 (common_iterator::_Proxy): ... here.
2798 (common_iterator::operator->): Use it.
2799 * testsuite/24_iterators/common_iterator/2.cc: New test.
2800 * testsuite/std/ranges/adaptors/95322.cc: New test.
2802 2020-05-26 Alexandre Oliva <oliva@adacore.com>
2805 * include/experimental/memory_resource
2806 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
2807 x86-vxworks as on x86-solaris.
2808 (__resource_adaptor_imp::do_deallocate): Likewise.
2809 * testsuite/experimental/memory_resource/new_delete_resource.cc:
2811 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
2812 (test03): Drop max-align test for char-aligned alloc.
2814 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
2816 Backport from mainline
2817 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
2819 * include/bits/fs_path.h (__detail::_S_range_begin)
2820 (__detail::_S_range_end): Remove unintentional static specifiers.
2821 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
2822 (__detail::_S_range_end): Likewise.
2824 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
2826 Backport from mainline
2827 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
2830 * include/debug/helper_functions.h (__get_distance): Only declare
2831 as a constexpr function for C++14 and up.
2832 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
2834 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
2836 Backport from mainline
2837 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
2839 * include/experimental/executor (use_future_t::use_future_t()): Fix
2840 incorrect noexcept-specifier.
2841 * include/experimental/internet (basic_resolver_results): Adjust
2843 * include/experimental/socket (__basic_socket_impl::release): Add
2845 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
2847 (basic_socket::release(), basic_socket::release(error_code&)): Add
2848 missing member functions.
2849 (basic_socket::is_open()): Add nodiscard attribute.
2850 (basic_socket::close(error_code&)): Pass argument to base function.
2851 (basic_socket_acceptor::release())
2852 (basic_socket_acceptor::release(error_code&)): Add missing member
2854 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
2855 (basic_socket_streambuf::error()): Add noexcept.
2856 (basic_socket_iostream::error()): Likewise.
2857 * testsuite/experimental/net/socket/basic_socket.cc: New test.
2859 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
2861 Backport from mainline
2862 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
2865 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
2866 Reorder constraints to avoid recursion when constructors use
2867 iterator_traits (LWG 3420).
2868 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
2870 2020-05-12 Jonathan Wakely <jwakely@redhat.com>
2872 Backport from mainline
2873 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
2876 * src/c++17/memory_resource.cc
2877 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
2880 Backport from mainline
2881 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
2884 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
2885 usable in constant expressions.
2886 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
2889 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
2891 Backport from mainline
2892 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
2893 Patrick Palka <ppalka@redhat.com>
2896 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
2897 Add trait to determine return type and an alias for it.
2898 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
2899 deduced return type.
2900 * testsuite/24_iterators/customization_points/92894.cc: New test.
2901 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
2903 2020-05-07 Release Manager
2905 * GCC 10.1.0 released.
2907 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
2909 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
2910 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
2912 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
2914 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
2916 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2918 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
2919 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
2921 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
2922 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
2925 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
2927 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
2928 versions for GCC 9.[123] and 10.1 releases.
2929 * doc/html/*: Regenerate.
2931 2020-05-06 Jakub Jelinek <jakub@redhat.com>
2933 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
2934 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
2935 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
2936 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
2937 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
2938 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
2939 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
2941 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
2943 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
2944 * doc/html/*: Regenerate.
2946 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
2948 Backport from mainline
2949 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
2952 * include/std/type_traits (__is_complete_or_unbounded): Replace
2953 BADNAME _T with _Tp.
2954 * testsuite/17_intro/badnames.cc: New test.
2956 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
2959 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
2960 (allocator_traits::_S_destroy)
2961 (allocator_traits<allocator<T>>::construct): Use traits in
2962 noexcept-specifiers.
2963 * include/bits/allocator.h (allocator<void>::construct)
2964 (allocator<void>::destroy): Likewise.
2965 * include/ext/malloc_allocator.h (malloc_allocator::construct)
2966 (malloc_allocator::destroy): Likewise.
2967 * include/ext/new_allocator.h (new_allocator::construct)
2968 (new_allocator::destroy): Likewise.
2969 * testsuite/20_util/allocator/89510.cc: New test.
2970 * testsuite/ext/malloc_allocator/89510.cc: New test.
2971 * testsuite/ext/new_allocator/89510.cc: New test.
2973 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
2976 * include/bits/basic_string.tcc: Update comment about explicit
2979 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
2982 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
2983 Remove non-standard macro.
2984 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
2985 to indicate P1032R1 support.
2986 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
2987 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
2988 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
2989 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
2990 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
2991 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
2992 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
2994 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
2995 * testsuite/21_strings/basic_string_view/operations/copy/char/
2996 constexpr.cc: Likewise.
2997 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
3000 * include/bits/alloc_traits.h (_S_construct): Restore placement
3001 new-expression for C++11/14/17 and call std::construct_at directly
3003 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
3004 function returning void.
3005 * testsuite/20_util/specialized_algorithms/
3006 uninitialized_value_construct/94831.cc: New test.
3007 * testsuite/23_containers/vector/cons/94831.cc: New test.
3009 2020-04-28 Patrick Palka <ppalka@redhat.com>
3011 LWG 3433 subrange::advance(n) has UB when n < 0
3012 * include/std/ranges (subrange::prev): Fix typo.
3013 (subrange::advance): Handle a negative argument as per the proposed
3014 resolution of LWG 3433.
3015 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
3017 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
3018 Iain Sandoe <iain@sandoe.co.uk>
3021 * include/std/coroutine: Implement handing for non-
3022 class coroutine return types.
3024 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
3026 * include/experimental/executor (service_already_exists): Make default
3027 constructor public (LWG 3414).
3028 * testsuite/experimental/net/execution_context/make_service.cc: Check
3029 the service_already_exists can be default constructed.
3031 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
3032 Jonathan Wakely <jwakely@redhat.com>
3036 * include/std/any (any): Rename template parameters for consistency
3038 (any::_Decay): Rename to _Decay_if_not_any.
3039 (any::any(T&&):: Remove is_constructible from constraints. Remove
3040 non-standard overload.
3041 (any::any(in_place_type_t<T>, Args&&...))
3042 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
3043 (any::emplace(Args&&...))
3044 (any::emplace(initializer_list<U>, Args&&...)):
3045 Use decay_t instead of _Decay.
3046 * testsuite/20_util/any/cons/90415.cc: New test.
3047 * testsuite/20_util/any/cons/92156.cc: New Test.
3048 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
3050 * testsuite/20_util/any/modifiers/92156.cc: New test.
3052 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
3054 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
3055 * doc/html/*: Regenerate.
3057 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
3058 value for C++17 to 201803L because P0858R0 is supported for C++17.
3059 * include/std/version (__cpp_lib_array_constexpr): Likewise.
3060 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
3061 Check for value corresponding to P0031R0 features being tested.
3062 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
3063 Check for value corresponding to P0858R0 features being tested.
3065 * include/std/version (__cpp_lib_three_way_comparison): Define for
3066 freestanding builds.
3068 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
3070 * include/experimental/net/executor (system_context): Mark
3071 system_context::system_context() = delete.
3072 * testsuite/experimental/net/executor/1.cc: Add new
3073 test to check system_context is not default constructible.
3075 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
3077 * include/std/coroutine: Update the inline namespace to __n4861.
3078 Add the __cpp_lib_coroutine define, set to 201902L.
3079 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
3081 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
3083 * include/std/execution (__cpp_lib_execution): Define to indicate
3084 support for P0024R2 and P1001R2.
3085 * include/std/version (__cpp_lib_execution): Define.
3086 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
3087 defined by <algorithm>, move other tests to new tests ...
3088 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
3089 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
3090 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
3091 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
3093 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
3094 different values for C++17 and C++20, to indicate different feature
3095 sets. Update value for C++20 to indicate P1032R1 support.
3096 * include/std/version (__cpp_lib_array_constexpr): Likewise.
3097 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
3098 Check feature test macro.
3099 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
3101 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
3103 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
3104 in C++17 mode and check feature test macro.
3106 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
3108 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
3109 defined by <utility>.
3111 * include/std/functional (__cpp_lib_concepts): Update macro value to
3112 indicate P1964R2 support.
3113 * include/std/version (__cpp_lib_concepts): Likewise.
3114 * testsuite/std/concepts/1.cc: Adjust expected value.
3115 * testsuite/std/concepts/2.cc: Likewise.
3117 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
3118 __cpp_lib_constexpr_functional.
3119 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
3120 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
3122 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
3123 indicate P1006R1 support.
3124 (__cpp_lib_to_address): Define to indicate P0653R2 support.
3125 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
3127 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
3129 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
3131 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
3133 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
3134 Define to indicate P0339R6 support.
3135 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
3136 indicate P0457R2 support.
3137 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
3138 to indicate P0758R1 support.
3139 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
3140 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
3141 * include/std/version (__cpp_lib_atomic_float)
3142 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
3143 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
3144 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
3145 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
3146 (__cpp_lib_to_address): Define.
3147 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
3149 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
3151 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
3153 * include/std/version (__cpp_lib_map_insertion)
3154 (__cpp_lib_unordered_map_insertion): Remove.
3156 * include/std/condition_variable (__cpp_lib_jthread): Remove
3157 redundant definition.
3158 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
3159 indicate P1869R1 support.
3160 * include/std/version (__cpp_lib_jthread): Update value.
3161 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
3162 for updated macro value.
3163 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
3165 * testsuite/30_threads/jthread/1.cc: Likewise.
3166 * testsuite/30_threads/jthread/2.cc: Likewise.
3167 * testsuite/30_threads/stop_token/1.cc: Likewise.
3168 * testsuite/30_threads/stop_token/2.cc: Likewise.
3170 * testsuite/21_strings/basic_string/erasure.cc: Check for
3171 __cpp_lib_erase_if macro.
3172 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
3174 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
3175 * testsuite/23_containers/list/erasure.cc: Likewise.
3176 * testsuite/23_containers/map/erasure.cc: Likewise.
3177 * testsuite/23_containers/set/erasure.cc: Likewise.
3178 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
3179 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
3180 * testsuite/23_containers/vector/erasure.cc: Likewise.
3182 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
3184 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
3185 to define operator<=>.
3186 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
3188 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
3189 * doc/Makefile.in: Regenerate.
3190 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
3192 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
3193 to the C++11 status table.
3194 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
3195 proposals with table matching contents of the C++14 standard.
3196 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
3198 * doc/html/*: Regenerate.
3201 * include/std/type_traits (__is_nt_constructible_impl): Add partial
3202 specializations for bounded arrays with non-empty initializers.
3203 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
3205 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
3207 * testsuite/lib/libstdc++.exp: Add additional_flags=
3208 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
3209 compiling with a newer Thread Building Blocks.
3211 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
3213 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
3215 * testsuite/20_util/is_constructible/51185.cc: Make test class a
3216 non-aggregate so that the test verifies the same thing in all -std
3218 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
3219 results for some types when paren-init for aggregates is supported.
3221 * include/std/version (__cpp_lib_three_way_comparison): Update value.
3222 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3223 (__detail::__synth3way): Add noexcept-specifier.
3225 * include/bits/stl_map.h (map): Define operator<=> and remove
3226 operator< for C++20.
3227 * include/bits/stl_multimap.h (multimap): Likewise.
3228 * include/bits/stl_multiset.h (multiset): Likewise.
3229 * include/bits/stl_set.h (set): Likewise.
3230 * include/bits/stl_tree.h (_Rb_tree): Likewise.
3231 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
3232 operator!= for C++20.
3233 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
3234 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
3235 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
3236 * include/debug/set.h (__gnu_debug::set): Likewise.
3237 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
3238 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
3239 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
3240 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
3242 2020-04-20 Matthias Kretz <kretz@kde.org>
3244 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
3246 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
3248 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
3249 * include/bits/stl_stack.h (stack): Likewise.
3250 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
3251 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
3253 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
3254 Remove redundant operator!= for C++20.
3255 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
3257 * include/debug/unordered_map (unordered_map, unordered_multimap):
3259 * include/debug/unordered_set (unordered_set, unordered_multiset):
3263 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
3264 redundant assignment in constructor.
3266 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
3268 * include/std/chrono (duration, time_point): Define operator<=> and
3269 remove redundant operator!= for C++20.
3270 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
3272 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
3275 * testsuite/util/native_type/native_priority_queue.hpp: Use
3276 allocator_traits to rebind allocator.
3278 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
3280 * include/bits/forward_list.h (forward_list): Define operator<=> and
3281 remove redundant comparison operators for C++20.
3282 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
3283 * include/bits/stl_deque.h (deque): Likewise.
3284 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
3285 * include/bits/stl_list.h (list): Likewise.
3286 * include/bits/stl_vector.h (vector): Likewise.
3287 * include/debug/deque (__gnu_debug::deque): Likewise.
3288 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
3289 * include/debug/list (__gnu_debug::list): Likewise.
3290 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
3292 * include/debug/vector (__gnu_debug::vector): Likewise.
3293 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
3294 operator<=> for C++20.
3295 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
3296 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
3297 * testsuite/23_containers/list/cmp_c++20.cc: New test.
3298 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
3299 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
3301 * include/bits/basic_string.h (basic_string): Define operator<=> and
3302 remove redundant comparison operators for C++20.
3303 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
3304 Add comparison_category members.
3305 (__detail::__char_traits_cmp_cat): New helper to get comparison
3306 category from char traits class.
3307 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
3309 (sub_match): Define operator<=> and remove redundant comparison
3310 operators for C++20.
3311 (match_results): Remove redundant operator!= for C++20.
3312 * include/std/string_view (basic_string_view): Define operator<=> and
3313 remove redundant comparison operators for C++20.
3314 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
3316 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
3318 * testsuite/21_strings/basic_string_view/operations/copy/char/
3319 constexpr.cc: Initialize variable.
3320 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
3321 constexpr.cc: Likewise.
3322 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
3323 dg-do directive and remove comments showing incorrect signatures.
3324 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
3326 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
3328 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
3330 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
3332 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
3334 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
3335 name of unused parameter.
3337 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
3339 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
3340 (directory_entry): Define operator<=> and remove redundant comparison
3341 operators for C++20.
3342 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
3343 * include/bits/fs_path.h (path): Define operator<=> and remove
3344 redundant comparison operators for C++20.
3345 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
3346 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
3347 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
3348 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
3350 * include/bits/allocator.h (operator!=): Do not define for C++20.
3351 * include/bits/locale_classes.h (operator!=): Likewise.
3352 * include/bits/std_function.h (operator==(nullptr_t, const function&))
3353 (operator!=(const function&, nullptr_t))
3354 (operator!=(nullptr_t, const function&)): Likewise.
3355 * include/ext/bitmap_allocator.h (operator!=): Likewise.
3356 * include/ext/debug_allocator.h (operator!=): Likewise.
3357 * include/ext/extptr_allocator.h (operator!=): Likewise.
3358 * include/ext/malloc_allocator.h (operator!=): Likewise.
3359 * include/ext/mt_allocator.h (operator!=): Likewise.
3360 * include/ext/new_allocator.h (operator!=): Likewise.
3361 * include/ext/pool_allocator.h (operator!=): Likewise.
3362 * include/ext/throw_allocator.h (operator!=): Likewise.
3363 * include/std/bitset (bitset::operator!=): Likewise.
3364 * include/std/memory_resource (operator!=): Likewise.
3365 * include/std/scoped_allocator (operator!=): Likewise.
3367 * include/std/typeindex (operator<=>): Define for C++20.
3368 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
3370 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
3372 * libsupc++/compare (compare_three_way): Fix constraint so that
3373 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
3374 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
3378 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
3379 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
3380 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
3381 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
3382 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
3383 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
3387 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
3388 * testsuite/18_support/comparisons/categories/94565.cc: New test.
3390 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
3392 * include/std/coroutine: Update coroutines builtin define,
3395 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
3397 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
3398 (strong_order, weak_order, partial_order): Replace uses of <=> with
3399 compare_three_way function object (LWG 3324).
3400 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
3401 equality operator so that X satisfies three_way_comparable.
3402 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
3404 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
3406 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
3407 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
3408 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
3409 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
3410 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
3412 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
3414 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
3416 * include/std/complex (operator==(const T&, const complex<T>&))
3417 (operator!=(const complex<T>&, const complex<T>&))
3418 (operator!=(const complex<T>&, const T&))
3419 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
3420 * testsuite/26_numerics/slice/compare.cc: New test.
3422 * include/std/charconv (to_chars_result, from_chars_result): Add
3423 defaulted equality comparisons for C++20.
3424 * testsuite/20_util/from_chars/compare.cc: New test.
3425 * testsuite/20_util/to_chars/compare.cc: New test.
3427 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
3430 * include/std/charconv (__integer_to_chars_result_type)
3431 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
3433 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
3434 use of std::string_view with std::string.
3435 * testsuite/20_util/from_chars/2.cc: Likewise.
3436 * testsuite/20_util/to_chars/1.cc: Likewise.
3437 * testsuite/20_util/to_chars/2.cc: Likewise.
3439 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
3442 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
3443 usable in constant expressions for C++20.
3444 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
3445 _GLIBCXX20_CONSTEXPR.
3446 (std::char_traits<char>, std::char_traits<wchar_t>)
3447 (std::char_traits<char8_t>): Make move, copy and assign usable in
3448 constant expressions for C++20.
3449 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
3450 and copy usable in constant expressions for C++20.
3451 * include/std/string_view (basic_string_view::copy): Add
3452 _GLIBCXX20_CONSTEXPR.
3453 * testsuite/21_strings/basic_string_view/operations/copy/char/
3454 constexpr.cc: New test.
3455 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
3456 constexpr.cc: New test.
3458 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
3460 * doc/xml/manual/appendix_contributing.xml: Refer to Git
3461 documentation instead of Subversion. Switch to https.
3462 * doc/html/manual/appendix_contributing.html: Regenerate.
3464 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
3467 * include/bits/ptr_traits.h (__to_address): Add special case for debug
3468 iterators, to avoid dereferenceable check.
3469 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
3470 * testsuite/20_util/to_address/debug.cc: New test.
3472 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
3474 * testsuite/experimental/net/execution_context/use_service.cc:
3475 Require pthread and gthreads.
3477 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
3479 * doc/xml/manual/appendix_free.xml: Move "free books" list from
3481 * doc/html/manual/appendix_free.html: Regenerate.
3483 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
3485 Library-side tests for parenthesized aggregate init
3490 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
3491 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
3492 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
3493 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
3494 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
3495 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
3496 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
3497 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
3498 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
3500 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
3501 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
3502 * testsuite/20_util/variant/92878_92947.cc: Likewise.
3503 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
3505 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
3507 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
3509 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
3511 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
3513 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
3515 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
3516 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
3517 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
3519 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
3520 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
3522 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
3524 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
3526 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
3528 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
3531 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
3533 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
3534 for changes due to parenthesized aggregate-initialization in C++20.
3535 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
3536 with std::chrono::sys_time in C++20.
3538 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
3539 to constrain C++20 versions of comparison operators. Fix backwards
3540 logic of relational operators.
3541 (move_iterator): Use requires-clause to constrain comparison operators
3542 in C++20. Do not declare non-standard same-type overloads for C++20.
3543 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
3544 of comparisons and check using greedy_ops type.
3545 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
3546 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
3547 main function from compile-only test.
3548 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
3550 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
3552 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
3553 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
3554 C++20 concepts are required.
3555 * include/bits/stl_iterator_base_types.h: Likewise.
3556 * include/std/concepts: Likewise.
3557 * include/std/version: Likewise.
3558 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
3561 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
3562 (reverse_iterator::iterator_category): Define for C++20.
3563 (reverse_iterator): Define comparison operators correctly for C++20.
3564 (__normal_iterator): Add constraints to comparison operators for C++20.
3565 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
3566 overload for input iterators.
3567 (move_iterator): Add constraints to comparison operators for C++20.
3568 Define operator<=> for C++20.
3569 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
3570 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
3571 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
3572 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
3574 * include/bits/iterator_concepts.h (__detail::__decay_copy)
3575 (__detail::__member_begin, __detail::__adl_begin): Move here from
3576 <bits/range_access.h>.
3577 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
3578 * bits/range_access.h (__cust_access::__decay_copy)
3579 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
3580 <bits/iterator_concepts.h>.
3581 (ranges::iterator_t): Use __detail::__range_iter_t.
3582 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
3583 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
3584 (front_insert_iterator): Likewise.
3585 (insert_iterator): Implement changes from P0896R4 for C++20.
3586 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
3587 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
3588 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
3589 for inclusion in synopsis_c++20.cc which expects different signatures
3590 for some function templates.
3591 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
3593 * include/std/type_traits (__is_array_convertible): Move definition
3594 to immediately after is_convertible.
3596 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
3598 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
3599 (chrono::months, chrono::sys_days, chrono::local_t)
3600 (chrono::local_time, chrono::local_seconds, chrono::local_days):
3602 (chrono::time_point): Add missing static assert.
3603 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
3604 * testsuite/std/time/clock/file/overview.cc: New test.
3605 * testsuite/std/time/clock/file/members.cc: New test.
3606 * testsuite/std/time/syn_c++20.cc: New test.
3608 2020-03-25 Mike Crowe <mac@mcrowe.com>
3610 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
3612 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
3615 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
3617 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
3618 * include/std/chrono (filesystem::__file_clock): Here.
3619 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
3620 Define public member functions for C++20.
3621 (is_clock, is_clock_v): Define traits for C++20.
3622 * include/std/condition_variable (condition_variable::wait_until): Add
3623 check for valid clock.
3624 * include/std/future (_State_baseV2::wait_until): Likewise.
3625 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
3626 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
3628 * include/std/thread (this_thread::sleep_until): Likewise.
3629 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
3630 slow_clock with new namespace.
3631 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
3633 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
3635 * testsuite/30_threads/future/members/clock_neg.cc: New test.
3636 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
3637 Qualify slow_clock with new namespace.
3638 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
3639 clock_neg.cc: New test.
3640 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
3642 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
3643 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
3645 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
3646 slow_clock with new namespace.
3647 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
3648 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
3650 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
3651 * testsuite/std/time/traits/is_clock.cc: New test.
3652 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
3655 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
3658 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
3659 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
3660 Improve test coverage.
3663 * include/bits/fs_path.h (path::_S_str_convert): Replace first
3664 parameter with basic_string_view so that strings with different
3665 allocators can be accepted.
3666 (path::generic_string<C,T,A>()): Use basic_string object that uses the
3667 right allocator type.
3668 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
3669 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
3672 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
3675 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
3676 (__is_nt_default_constructible_impl): Remove.
3677 (__is_nothrow_default_constructible_impl): Remove.
3678 (__is_nt_constructible_impl): Add bool template parameter. Adjust
3679 partial specializations.
3680 (__is_nothrow_constructible_impl): Replace class template with alias
3682 (is_nothrow_default_constructible): Derive from alias template
3683 __is_nothrow_constructible_impl instead of
3684 __is_nothrow_default_constructible_impl.
3685 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
3687 * include/std/stop_token (stop_token::_Stop_state_ref): Define
3688 comparison operators explicitly if the compiler won't synthesize them.
3690 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
3691 __cpp_lib_concepts before using iter_reference_t.
3692 * include/bits/stream_iterator.h (istream_iterator): Check
3693 __cpp_lib_concepts before using default_sentinel_t.
3694 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
3697 * include/experimental/executor (executor::executor(Executor)): Call
3698 make_shared directly instead of _M_create. Create _Tgt1 object.
3699 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
3700 Call allocate_shared directly instead of _M_create. Create _Tgt2
3702 (executor::target_type): Add cast needed for new _Tgt interface.
3703 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
3704 (executor::_Tgt): Define the same interface whether RTTI is enabled or
3706 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
3707 std::type_info in the interface.
3708 (executor::_Tgt::_M_func): Add data member.
3709 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
3710 (executor::_Tgt1::_S_func): Define function to access target without
3712 (executor::_M_create): Remove.
3713 (operator==, operator!=): Simplify comparisons for executor.
3714 * include/experimental/socket (is_error_code_enum<socket_errc>):
3715 Define specialization before use.
3716 * testsuite/experimental/net/executor/1.cc: New test.
3718 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
3721 * include/experimental/executor (service_already_exists): Add default
3722 constructor. Declare make_service to be a friend.
3723 * testsuite/experimental/net/execution_context/make_service.cc: New
3726 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
3728 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
3729 a null pointer to functions with nonnull(1) attribute.
3731 2020-03-11 Patrick Palka <ppalka@redhat.com>
3733 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
3734 'address' -> 'std::__addressof'.
3735 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
3736 a non-forward input_range.
3737 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
3738 default constructor protected instead of deleted, like with
3739 input_iterator_wrapper.
3740 (test_range::iterator): Add comment explaining that this type is used
3741 only when the underlying wrapper is input_iterator_wrapper or
3742 output_iterator_wrapper. Remove delegating defaulted constructor so
3743 that the inherited default constructor is used instead.
3745 LWG 3286 ranges::size is not required to be valid after a call to
3746 ranges::begin on an input range
3747 * include/std/ranges (subrange::subrange): Split single-argument
3748 constructor into two, one constrained by _S_store_size and another by
3750 (take_view::begin): Call size() before calling ranges::begin(_M_base).
3751 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
3752 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
3754 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
3756 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
3757 instead of _M_current.
3758 (split_view::_OuterIter::operator++): Likewise.
3760 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
3761 (transform_view::_Iterator::operator*): Add noexcept-specifier.
3762 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
3763 (split_view::_OuterIter::__current): Add noexcept.
3764 (split_view::_InnerIter::__iter_swap): Remove.
3765 (split_view::_InnerIter::__iter_move): Remove.
3766 (split_view::_InnerIter::_M_i_current): New accessors.
3767 (split_view::_InnerIter::__at_end): Use _M_i_current().
3768 (split_view::_InnerIter::operator*): Likewise.
3769 (split_view::_InnerIter::operator++): Likewise.
3770 (iter_move(const _InnerIter&)): Likewise.
3771 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
3772 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
3773 for iter_move and iter_swap on split_view's inner iterator.
3776 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
3777 Change expression in noexcept-specifier to match function body.
3779 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
3780 comment explaining multiple dg-do directives.
3781 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
3782 so test is run as well as compiled.
3784 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
3787 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
3788 handle concatenations that change the type of the first component.
3789 (path::operator+=(basic_string_view<value_type>)): Likewise.
3790 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
3792 2020-03-06 Patrick Palka <ppalka@redhat.com>
3794 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
3795 join_view::_Sentinel<!_Const>.
3796 * testsuite/std/ranges/adaptors/join.cc: Augment test.
3799 * include/bits/range_access.h (__cust_access::_Empty::operator()):
3800 Declare return type to be bool instead of auto.
3801 * testsuite/std/ranges/adaptors/93978.cc: New test.
3803 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
3806 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
3807 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
3808 second argument to __glibcxx_rwlock_init.
3809 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
3812 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
3813 test to not fail due to PR 94063.
3814 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
3815 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
3817 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
3819 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
3822 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
3824 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
3825 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
3826 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
3827 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
3828 for return value, and in comparison.
3829 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
3832 * include/std/string_view: Include <bits/ostream_insert.h>.
3833 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
3835 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
3837 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
3839 2020-03-04 Patrick Palka <ppalka@redhat.com>
3842 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
3843 condition for when to use memset, making sure to additionally check that
3844 the output pointer's value type is a non-volatile byte type. Instead of
3845 requiring that the fill type is a byte type, just require that it's an
3847 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
3849 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
3851 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
3852 blocked by PR 94017.
3853 * testsuite/25_algorithms/fill/94017.cc: New test.
3854 * testsuite/25_algorithms/fill_n/94017.cc: New test.
3856 LWG 3355 The memory algorithms should support move-only input iterators
3858 * include/bits/ranges_uninitialized.h
3859 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
3860 to copy __ifirst, which could be a move-only input iterator. Use
3861 operator- instead of ranges::distance to compute distance from a sized
3863 (__uninitialized_copy_n_fn::operator()): Likewise.
3864 (__uninitialized_move_fn::operator()): Likewise.
3865 (__uninitialized_move_n_fn::operator()): Likewise.
3866 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
3867 attempting to copy __first.
3868 (__uninitialized_destroy_n_fn::operator()): Likewise.
3869 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
3871 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
3873 * .../specialized_algorithms/uninitialized_move/constrained.cc:
3876 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
3877 protected instead of private.
3878 (test_sized_range_sized_sent): New.
3880 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
3881 New testsuite iterator.
3882 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
3883 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
3885 * include/bits/ranges_uninitialized.h
3886 (uninitialized_copy_fn::operator()): Pass a reference type as the first
3887 argument to is_nothrow_assignable_v.
3888 (uninitialized_copy_fn::operator()): Likewise.
3889 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
3890 with the input iterator stripped of its move_iterator.
3891 (uninitialized_move_n_fn::operator()): Likewise.
3892 (uninitialized_fill_fn::operator()): Pass a reference type as the first
3893 argument to is_nothrow_assignable_v.
3894 (uninitialized_fill_n_fn::operator()): Likewise.
3896 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
3899 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
3900 traits to control when to use memmove and memcmp optimizations.
3901 (__is_nonvolatile_trivially_copyable): New helper trait.
3902 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
3903 use memcmp optimization with volatile data.
3904 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
3905 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
3906 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
3907 (__copy_move_backward_a2): Likewise.
3908 (__equal_aux1): Use __memcmpable.
3909 (__lexicographical_compare_aux): Do not use memcmp optimization with
3911 * testsuite/25_algorithms/copy/94013.cc: New test.
3912 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
3913 * testsuite/25_algorithms/equal/94013.cc: New test.
3914 * testsuite/25_algorithms/fill/94013.cc: New test.
3915 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
3916 * testsuite/25_algorithms/move/94013.cc: New test.
3917 * testsuite/25_algorithms/move_backward/94013.cc: New test.
3919 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3920 Avoid redundant iterator comparisons (LWG 3410).
3922 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
3925 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
3927 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
3929 * include/std/ranges (__detail::__maybe_empty_t): Rename to
3931 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
3933 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
3936 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
3938 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
3940 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
3942 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
3943 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
3944 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
3945 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
3946 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
3948 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
3949 Add libatomic option.
3950 * testsuite/30_threads/jthread/jthread.cc: Likewise.
3952 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
3954 * include/bits/stl_algo.h
3955 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
3956 * include/bits/stl_algobase.h: ...here.
3957 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
3959 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
3961 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
3963 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
3965 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
3966 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
3967 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
3968 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
3969 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
3970 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
3971 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
3975 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
3977 2020-02-28 Patrick Palka <ppalka@redhat.com>
3980 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
3981 Fix condition for when to use memcmp, making it consistent with the
3982 corresponding condition used in std::lexicographical_compare.
3983 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
3985 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
3986 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
3987 existing signatures for C++2a.
3989 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
3991 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
3992 test instead of just compiling it.
3994 2020-02-28 Patrick Palka <ppalka@redhat.com>
3996 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
3997 whenever the underlying range models common_range.
3999 * include/std/ranges (__detail::_CachedPosition): New struct.
4000 (views::filter_view::_S_needs_cached_begin): New member variable.
4001 (views::filter_view::_M_cached_begin): New member variable.
4002 (views::filter_view::begin): Use _M_cached_begin to cache its
4004 (views::drop_view::_S_needs_cached_begin): New static member variable.
4005 (views::drop_view::_M_cached_begin): New member variable.
4006 (views::drop_view::begin): Use _M_cached_begin to cache its result
4007 when _S_needs_cached_begin.
4008 (views::drop_while_view::_M_cached_begin): New member variable.
4009 (views::drop_while_view::begin): Use _M_cached_begin to cache its
4011 (views::reverse_view::_S_needs_cached_begin): New static member
4013 (views::reverse_view::_M_cached_begin): New member variable.
4014 (views::reverse_view::begin): Use _M_cached_begin to cache its result
4015 when _S_needs_cached_begin.
4016 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
4017 drop_view::begin caches its result.
4018 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
4019 that drop_while_view::begin caches its result.
4020 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
4021 filter_view::begin caches its result.
4022 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
4023 reverse_view::begin caches its result.
4025 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
4027 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
4028 filesystems that silently truncate timestamps.
4029 * testsuite/experimental/filesystem/operations/last_write_time.cc:
4032 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
4033 -Wstringop-overflow warnings.
4035 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
4037 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
4038 -fdiagnostics-urls=never to options.
4040 2020-02-27 Patrick Palka <ppalka@redhat.com>
4042 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
4044 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
4045 (take_view::_Sentinel<_Const>): Likewise.
4046 (take_while_view::_Sentinel<_Const>): Likewise.
4047 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
4048 * testsuite/std/ranges/adaptors/split.cc: Augment test.
4049 * testsuite/std/ranges/adaptors/take.cc: Augment test.
4050 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
4051 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
4053 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
4054 base() of a vector<>::iterator is a pointer.
4055 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
4056 * testsuite/25_algorithms/move/constrained.cc: Likewise.
4057 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
4058 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
4060 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
4061 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
4062 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
4063 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
4064 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
4066 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
4068 * include/debug/array (operator<=>): Define for C++20.
4069 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
4070 Adjust dg-error line numbers.
4071 * testsuite/23_containers/array/tuple_interface/
4072 tuple_element_debug_neg.cc: Likewise.
4074 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
4075 defining _GLIBCXX_ASSERTIONS.
4076 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
4077 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
4078 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
4079 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
4080 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
4081 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
4082 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
4083 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
4084 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
4085 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
4086 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
4087 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
4089 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
4090 C++98 where the member function of the base class returns void.
4092 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
4093 equality comparisons that support value-initialized iterators.
4095 * include/bits/boost_concept_check.h (__function_requires): Add
4096 _GLIBCXX14_CONSTEXPR.
4097 * testsuite/25_algorithms/min/concept_checks.cc: New test.
4099 2020-02-26 Patrick Palka <ppalka@redhat.com>
4102 * include/std/ranges (split_view::_InnerIter::operator==): Compare
4103 the operands' _M_i rather than their _M_i.current().
4104 * testsuite/std/ranges/adaptors/split.cc: Augment test.
4106 P1645R1 constexpr for <numeric> algorithms
4107 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
4108 partial_sum, adjacent_difference): Make conditionally constexpr for
4110 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
4112 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
4113 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
4114 constexpr for C++20.
4115 * include/std/version (__cpp_lib_constexpr_numeric): Define.
4116 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
4117 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
4118 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
4119 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
4120 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
4121 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
4122 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
4123 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
4124 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
4125 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
4126 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
4128 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
4130 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
4131 variables in smaller scope and avoid calling ranges::distance when we
4132 know they are pointers. Remove statically-unreachable use of
4133 __builtin_unreachable().
4134 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
4137 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
4139 (__detail::__maybe_const_t): Likewise.
4140 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
4141 (transform_view, take_view, take_while_view, elements_view): Use
4143 (join_view, split_view): Use both.
4145 2020-02-25 Patrick Palka <ppalka@redhat.com>
4147 LWG 3397 basic_istream_view::iterator should not provide
4149 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
4151 (basic_istream_view:_Iterator::iterator_concept): ... this.
4152 * testsuite/std/ranges/istream_view.cc: Augment test.
4154 LWG 3325 Constrain return type of transformation function for
4156 * include/std/ranges (transform_view): Constrain the return type of the
4157 transformation function as per LWG 3325.
4158 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
4160 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
4161 * include/std/ranges (join_view::_Iterator::operator--): Require that
4162 range_reference_t<_Base> models common_range.
4163 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
4165 LWG 3301 transform_view::_Iterator has incorrect iterator_category
4166 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
4167 determination of iterator_category as per LWG 3301.
4168 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
4170 LWG 3292 iota_view is under-constrained
4171 * include/std/ranges (iota_view): Require that _Winc models semiregular
4173 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
4175 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
4177 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
4178 during constant evaluation. Call __builtin_memmove directly instead of
4180 (__copy_or_move_backward): Likewise.
4181 * include/bits/stl_algobase.h (__memmove): Remove.
4182 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
4183 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
4184 Use __builtin_memmove directly instead of __memmove.
4185 (__copy_move_a2): Do not use memmove during constant evaluation.
4186 (__copy_move_backward_a2): Use _IsMove constant to select correct
4187 __copy_move_backward specialization.
4188 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
4189 begin turned into moves during constant evaluation.
4191 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
4195 * include/bits/stl_algobase.h (__memmove): Cast away const before
4196 doing move assignment.
4197 * testsuite/25_algorithms/move/93872.cc: New test.
4198 * testsuite/25_algorithms/move_backward/93872.cc: New test.
4200 2020-02-24 Patrick Palka <ppalka@redhat.com>
4203 * include/bits/ranges_algobase.h (__copy_or_move,
4204 __copy_or_move_backward): Don't inspect the iter_value_t of the output
4205 iterator, instead inspect its iterator_traits directly.
4206 * include/bits/stl_iterator.h (back_insert_iterator::container):
4207 Conditionally initialize.
4208 (back_insert_iterator::difference_type): Conditionally define.
4209 (back_insert_iterator::back_insert_iterator): Conditionally define this
4210 default constructor.
4211 (front_insert_iterator::container): Conditionally initialize.
4212 (front_insert_iterator::difference_type): Conditionally define.
4213 (front_insert_iterator::front_insert_iterator): Conditionally define
4214 this default constructor.
4215 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
4216 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
4218 P0769R2 Add shift to <algorithm>
4219 * include/bits/ranges_algo.h (shift_left, shift_right): New.
4220 * testsuite/25_algorithms/shift_left/1.cc: New test.
4221 * testsuite/25_algorithms/shift_right/1.cc: New test.
4223 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
4225 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
4226 Make noexcept-specifier conditional.
4227 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
4230 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
4232 (operator==(istream_iterator, default_sentinel_t)): Add operator.
4233 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
4234 * include/bits/streambuf_iterator.h
4235 (istreambuf_iterator(default_sentinel_t)): Add constructor.
4236 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
4237 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
4239 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
4240 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
4242 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
4244 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
4245 (ranges::enable_view): Simplify (LWG 3326).
4246 * include/bits/range_access.h (ranges::enable_view): Declare.
4247 * include/bits/regex.h (__enable_view_impl): Remove partial
4249 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
4250 * include/bits/stl_set.h (__enable_view_impl): Likewise.
4251 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
4252 * include/debug/multiset.h (__enable_view_impl): Likewise.
4253 * include/debug/set.h (__enable_view_impl): Likewise.
4254 * include/debug/unordered_set (__enable_view_impl): Likewise.
4255 * include/experimental/string_view (ranges::enable_view): Define
4256 partial specialization.
4257 * include/std/span (ranges::enable_view): Likewise.
4258 * include/std/string_view (ranges::enable_view): Likewise.
4259 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
4261 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
4263 * include/std/optional (operator<=>(optional<T>, optional<U>))
4264 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
4266 * include/std/tuple (__tuple_cmp): New helper function for <=>.
4267 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
4268 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
4269 (operator<=>(monostate, monostate)): Define for C++20.
4270 * testsuite/20_util/optional/relops/three_way.cc: New test.
4271 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
4272 * testsuite/20_util/variant/89851.cc: Move to ...
4273 * testsuite/20_util/variant/relops/89851.cc: ... here.
4274 * testsuite/20_util/variant/90008.cc: Move to ...
4275 * testsuite/20_util/variant/relops/90008.cc: ... here.
4276 * testsuite/20_util/variant/relops/three_way.cc: New test.
4278 2020-02-20 Patrick Palka <ppalka@redhat.com>
4280 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
4282 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
4283 __maybe_refwrap to capture lvalue references by reference, and then use
4284 unwrap_reference_t to forward the by-reference captures as references.
4285 * testsuite/std/ranges/adaptors/split.cc: Augment test.
4286 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
4288 * include/std/ranges (iota_view): Forward declare _Sentinel.
4289 (iota_view::_Iterator): Befriend _Sentinel.
4290 (iota_view::_Sentinel::_M_equal): New member function.
4291 (iota_view::_Sentinel::operator==): Use it.
4292 (views::_Iota::operator()): Forward __f using the correct type.
4293 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
4294 with integers of different signedness, to appease iota_view's deduction
4296 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
4298 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
4300 * include/bits/range_access.h (ranges::begin): Reject array of
4302 (ranges::end, ranges::size): Require arrays to be bounded.
4303 (ranges::data): Require lvalue or borrowed_range.
4304 (ranges::iterator_t): Remove constraint.
4305 * testsuite/std/ranges/access/begin.cc: Do not check array of
4307 * testsuite/std/ranges/access/begin_neg.cc: New test.
4308 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
4309 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
4310 * testsuite/std/ranges/access/ssize.cc: Do not check array of
4313 * include/std/system_error (error_category::operator<=>)
4314 (operator<=>(const error_code&, const error_code&))
4315 (operator<=>(const error_condition&, const error_condition&)): Define
4317 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
4318 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
4320 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
4322 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
4323 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
4325 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
4326 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
4328 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
4329 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
4330 Remove incorrect comment.
4331 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
4334 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
4336 * include/std/thread (thread::id::operator<=>): Define for C++20.
4337 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
4338 functions in namespace std.
4339 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
4341 2020-02-19 Patrick Palka <ppalka@redhat.com>
4343 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
4344 null terminator of the underlying string as part of the test_range.
4345 (main): Call test03.
4347 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
4349 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
4350 requirement (LWG 3385).
4351 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
4352 expected declaration.
4354 * include/std/ranges (take_while_view, drop_view, drop_while_view)
4355 (elements_view:_Iterator): Initialize data members (LWG 3364).
4357 * libsupc++/compare (three_way_comparable): Remove always-false check
4358 that should have been removed with weak_equality (P1959R0).
4359 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
4361 * include/std/concepts (__detail::__partially_ordered_with): Move here
4363 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
4364 to simplify definition (LWG 3331).
4365 * libsupc++/compare (__detail::__partially_ordered_with): Move to
4368 * include/std/concepts (totally_ordered_with): Remove redundant
4369 requirement (LWG 3329).
4371 * include/std/ranges (__detail::__convertible_to_non_slicing): New
4373 (__detail::__pair_like_convertible_to): Remove.
4374 (__detail::__pair_like_convertible_from): Add requirements for
4375 non-slicing conversions.
4376 (subrange): Constrain constructors with __convertible_to_non_slicing.
4377 Remove constructors from pair-like types. Add new deduction guide.
4378 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
4380 * include/bits/iterator_concepts.h (iter_move): Add declaration to
4381 prevent unqualified lookup finding a suitable declaration (LWG 3247).
4383 * include/std/memory_resource (polymorphic_allocator::allocate)
4384 (polymorphic_allocator::allocate_object): Change type of exception to
4385 bad_array_new_length (LWG 3237).
4386 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
4388 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
4389 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
4390 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
4391 * testsuite/20_util/unwrap_reference/3.cc: New test.
4393 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
4394 type during overload resolution, use static assert instead (LWG 3200).
4395 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
4397 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
4399 * include/std/span (span(T (&)[N])): Use non-deduced context to
4400 prevent first parameter from interfering with class template argument
4401 deduction (LWG 3369).
4402 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
4403 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
4406 * include/std/span (span::const_iterator, span::const_reverse_iterator)
4407 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
4409 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
4411 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
4413 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
4414 constrained.cc: Likewise.
4415 * testsuite/20_util/specialized_algorithms/
4416 uninitialized_default_construct/constrained.cc: Likewise.
4417 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
4418 constrained.cc: Likewise.
4419 * testsuite/20_util/specialized_algorithms/uninitialized_move/
4420 constrained.cc: Likewise.
4421 * testsuite/20_util/specialized_algorithms/
4422 uninitialized_value_construct/constrained.cc: Likewise.
4424 * include/bits/range_access.h (range_size_t): Define alias template.
4425 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
4426 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
4428 * include/std/ranges (filter_view, transform_view, take_view)
4429 (join_view, split_view, reverse_view): Remove commented-out converting
4430 constructors (LWG 3280).
4432 * include/std/memory (uninitialized_construct_using_allocator): Use
4433 std::construct_at (LWG 3321).
4435 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
4436 (polymorphic_allocator::allocate_object)
4437 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
4439 LWG 3379. "safe" in several library names is misleading
4440 * include/bits/range_access.h (enable_safe_range): Rename to
4441 enable_borrowed_range.
4442 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
4443 (safe_range): Rename to borrowed_range.
4444 * include/bits/ranges_algo.h: Adjust to use new names.
4445 * include/bits/ranges_algobase.h: Likewise.
4446 * include/bits/ranges_uninitialized.h: Likewise.
4447 * include/std/ranges: Likewise.
4448 (safe_iterator_t): Rename to borrowed_iterator_t.
4449 (safe_subrange_t): Rename to borrowed_subrange_t.
4450 * include/std/span: Adjust to use new names.
4451 * include/std/string_view: Likewise.
4452 * include/experimental/string_view: Likewise.
4453 * testsuite/std/ranges/access/begin.cc: Likewise.
4454 * testsuite/std/ranges/access/cbegin.cc: Likewise.
4455 * testsuite/std/ranges/access/cdata.cc: Likewise.
4456 * testsuite/std/ranges/access/cend.cc: Likewise.
4457 * testsuite/std/ranges/access/crbegin.cc: Likewise.
4458 * testsuite/std/ranges/access/crend.cc: Likewise.
4459 * testsuite/std/ranges/access/data.cc: Likewise.
4460 * testsuite/std/ranges/access/end.cc: Likewise.
4461 * testsuite/std/ranges/access/rbegin.cc: Likewise.
4462 * testsuite/std/ranges/access/rend.cc: Likewise.
4463 * testsuite/std/ranges/safe_range.cc: Likewise.
4464 * testsuite/std/ranges/safe_range_types.cc: Likewise.
4465 * testsuite/util/testsuite_iterators.h: Likewise.
4467 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
4468 (tuple_element<1, const subrange<I, S, K>>): Add partial
4469 specializations (LWG 3398).
4470 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
4472 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
4473 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
4474 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
4476 2020-02-18 Patrick Palka <ppalka@redhat.com>
4478 P1983R0 Wording for GB301, US296, US292, US291, and US283
4479 * include/std/ranges (filter_view::pred): New member function.
4480 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
4481 P1983R0 fixes the highlighted issue in the same way.
4482 (join_view::_Iterator<_Const>): Add friend
4483 join_view::_Iterator<!_Const>.
4484 (join_view::_M_inner): Remove mutable specifier, effectively reverting
4485 the proposed wording changes of P3278.
4486 (join_view::begin): Refine the condition for when to return a const
4488 (split_view::_OuterIter::_OuterIter): Adjust constraints.
4489 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
4492 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
4495 * include/std/ranges (_RangeAdaptor): Add deduction guide.
4496 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
4498 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
4499 (transform_view::_Iterator): Add alias _Base_iter and use in place of
4501 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
4502 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
4503 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
4504 (split_view::_InnerIter::_S_iter_cat()): Likewise.
4506 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
4507 assumption that long is wider than int.
4508 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
4509 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
4510 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
4511 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
4513 P1976R2 Fixed-size span construction from dynamic range
4514 * include/std/span (__cpp_lib_span): Update value.
4515 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
4517 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
4519 (span::first<Count>(), span::last<Count>()): Use explicit type in
4521 (as_bytes, as_writable_bytes): Likewise.
4522 * include/std/version (__cpp_lib_span): Update value.
4523 * testsuite/23_containers/span/1.cc: Check new value.
4524 * testsuite/23_containers/span/2.cc: Check new value.
4525 * testsuite/23_containers/span/explicit.cc: New test.
4527 * include/std/span (span::__is_compatible_array): Simplify alias
4528 template by using requires-clause.
4529 (span::__is_compatible_ref): New alias template for constraining
4531 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
4532 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
4533 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
4534 redundant parentheses.
4535 (span(R&&)): Add missing constraints.
4537 * include/std/span (span): Reorder members and rename template
4538 parameters to match declarations in the C++2a working paper.
4540 P2116R0 Remove tuple-like protocol support from fixed-extent span
4541 * include/std/span (get, tuple_size, tuple_element): Remove.
4542 * testsuite/23_containers/span/everything.cc: Remove checks for
4544 * testsuite/23_containers/span/get_neg.cc: Remove.
4545 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
4546 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
4547 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
4549 2020-02-17 Patrick Palka <ppalka@redhat.com>
4551 P2106R0 Alternative wording for GB315 and GB316
4552 * include/bits/ranges_algo.h (in_fun_result): New.
4553 (for_each_result, for_each_n_result): Change into an alias of
4555 (in_in_result): New.
4556 (mismatch_result): Change into an alias of in_in_result.
4557 (copy_if_result): Change into an alias of in_out_result.
4558 (swap_ranges_result): Change into an alias of in_in_result.
4559 (unary_transform_result): Change into an alias of in_out_result.
4560 (in_in_out_result): New.
4561 (binary_transform_result): Change into an alias of in_in_out_result.
4562 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
4563 remove_copy_result, unique_copy_result, reverse_copy_result,
4564 rotate_copy_result, partial_sort_copy_result): Change into an alias of
4566 (in_out_out_result): New.
4567 (partition_copy_result, merge_result): Change into an alias of
4569 (set_union_result, set_intersection_result): Change into an alias of
4571 (set_difference_result): Change into an alias of in_out_result.
4572 (set_symmetric_difference): Change into an alias of in_in_out_result.
4573 (min_max_result): New.
4574 (minmax_result, minmax_element_result): Change into an alias of
4576 (in_found_result): New.
4577 (next_permutation_result, prev_permutation_result): Change into an alias
4579 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
4580 Adjust following changes to next_permutation_result and
4581 prev_permutation_result.
4582 * include/bits/ranges_algobase.h (in_out_result): New.
4583 (copy_result, move_result, move_backward_result, copy_backward_result,
4584 copy_n_result): Change into an alias of in_out_result.
4585 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
4586 uninitialized_copy_n_result, uninitialized_move_result,
4587 uninitialized_move_n_result): Likewise.
4588 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
4589 structured bindings.
4590 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
4592 P1243R4 Rangify new algorithms
4593 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
4594 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
4595 * testsuite/25_algorithms/clamp/constrained.cc: New test.
4596 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
4597 * testsuite/25_algorithms/sample/constrained.cc: New test.
4599 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
4601 P1964R2 Wording for boolean-testable
4602 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
4603 (__adjacent_find_fn): Cast result of predicate to bool.
4604 * include/std/concepts (__boolean): Remove.
4605 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
4606 new helper concepts.
4607 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
4608 (predicate): Use __boolean_testable instead of boolean.
4609 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
4612 P1970R2 Consistency for size() functions: Add ranges::ssize
4613 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
4614 * testsuite/std/ranges/access/ssize.cc: New test.
4616 P1956R1 On the names of low-level bit manipulation functions
4617 * include/bits/hashtable_policy.h: Update comment.
4618 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
4619 (ispow2, ceil2, floor2, log2p1): Likewise.
4620 (__cpp_lib_int_pow2): Add feature test macro.
4621 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
4622 * include/std/memory (assume_aligned): Adjust use of ispow2.
4623 * include/std/version (__cpp_lib_int_pow2): Add.
4624 * libsupc++/new_opa.cc: Adjust use of __ispow2.
4625 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
4626 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
4627 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
4628 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
4629 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
4630 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
4631 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
4632 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
4633 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
4634 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
4635 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
4636 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
4638 * include/std/charconv: Add comment.
4640 PR libstdc++/92546 (partial)
4641 * include/bits/random.h (uniform_random_bit_generator): Move definition
4642 to <bits/uniform_int_dist.h>.
4643 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
4645 * include/bits/ranges_algobase.h: Do not include <cmath>.
4646 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
4648 * include/std/ranges: Do not include <limits>.
4649 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
4651 PR libstdc++/92546 (partial)
4652 * include/Makefile.am: Add new header.
4653 * include/Makefile.in: Regenerate.
4654 * include/bits/int_limits.h: New header.
4655 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
4656 numeric_limits with __detail::__int_limits.
4657 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
4658 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
4660 * include/std/charconv (__to_chars_8, __from_chars_binary)
4661 (__from_chars_alpha_to_num, from_chars): Likewise.
4662 * include/std/memory_resource (polymorphic_allocator::allocate)
4663 (polymorphic_allocator::allocate_object): Likewise.
4664 * include/std/string_view (basic_string_view::_S_compare): Likewise.
4665 * include/std/utility (in_range): Likewise.
4666 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
4667 extra error about incomplete type __int_limits<bool>.
4668 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
4669 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
4670 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
4671 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
4672 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
4673 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
4674 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
4675 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
4676 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
4677 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
4678 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
4679 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
4681 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
4682 value for partial_ordering::unordered.
4684 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
4685 const-qualified expression variations.
4686 * include/std/concepts (copyable): Likewise.
4688 * include/std/type_traits (__is_standard_integer): New helper trait.
4689 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
4690 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
4691 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
4692 * testsuite/20_util/integer_comparisons/1.cc: New test.
4693 * testsuite/20_util/integer_comparisons/2.cc: New test.
4694 * testsuite/20_util/integer_comparisons/equal.cc: New test.
4695 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
4696 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
4697 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
4698 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
4699 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
4700 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
4701 * testsuite/20_util/integer_comparisons/less.cc: New test.
4702 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
4703 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
4704 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
4705 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
4706 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
4708 2020-02-16 Patrick Palka <ppalka@redhat.com>
4710 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
4711 Move code after an early exit constexpr if to under an else branch.
4712 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
4714 2020-02-15 Patrick Palka <ppalka@redhat.com>
4716 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
4717 * include/bits/ranges_algobase.h: Likewise.
4718 * include/bits/ranges_uninitialized.h: Likewise.
4720 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
4721 binary_search, copy_if, count, count_if, equal_range, find, find_end,
4722 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
4723 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
4724 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
4725 lower_bound, make_heap, max, max_element, merge, min, min_element,
4726 minmax, minmax_element, mismatch, next_permutation, none_of,
4727 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
4728 partition_point, pop_heap, prev_permutation, push_heap, remove,
4729 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
4730 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
4731 search, search_n, set_difference, set_intersection,
4732 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
4733 stable_partition, stable_sort, swap_ranges, transform, unique,
4734 unique_copy, upper_bound): Convert into function objects.
4735 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
4736 fill, move_backward, copy_backward): Likewise.
4737 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
4738 uninitialized_default_construct_n, uninitialized_value_construct,
4739 uninitialized_value_construct_n, uninitialized_copy,
4740 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
4741 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
4742 destroy, destroy_n): Likewise.
4744 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
4745 (ranges::find_end): ... here.
4746 (ranges::__lexicographical_compare): Fold into ...
4747 (ranges::lexicographical_compare): ... here.
4748 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
4749 (ranges::equal): ... here.
4751 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
4753 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
4754 * include/std/deque: Likewise.
4755 * include/std/forward_list: Likewise.
4756 * include/std/list: Likewise.
4757 * include/std/string: Likewise.
4758 * include/std/vector: Likewise.
4759 * include/std/version: Likewise.
4760 * testsuite/23_containers/deque/erasure.cc: Test for new value.
4761 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
4762 * testsuite/23_containers/list/erasure.cc: Likewise.
4763 * testsuite/23_containers/map/erasure.cc: Likewise.
4764 * testsuite/23_containers/set/erasure.cc: Likewise.
4765 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
4766 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
4767 * testsuite/23_containers/vector/erasure.cc: Likewise.
4769 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
4771 * include/bits/random.h (uniform_random_bit_generator): Require min()
4772 and max() to be constant expressions and min() to be less than max().
4773 * testsuite/26_numerics/random/concept.cc: Check additional cases.
4774 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
4776 2020-02-13 Patrick Palka <ppalka@redhat.com>
4778 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
4779 * include/Makefile.in: Regenerate.
4780 * include/bits/ranges_uninitialized.h: New header.
4781 * include/std/memory: Include it.
4782 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
4784 * .../uninitialized_copy/constrained.cc: New test.
4785 * .../uninitialized_default_construct/constrained.cc: New test.
4786 * .../uninitialized_fill/constrained.cc: New test.
4787 * .../uninitialized_move/constrained.cc: New test.
4788 * .../uninitialized_value_construct/constrained.cc: New test.
4790 * include/Makefile.am: Add bits/ranges_algobase.h
4791 * include/Makefile.in: Regenerate.
4792 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
4794 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
4795 __detail::__is_move_iterator, copy_result, move_result,
4796 __equal, equal, copy_result, move_result, move_backward_result,
4797 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
4798 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
4799 fill): Split out into ...
4800 * bits/range_algobase.h: ... this new header.
4802 2020-02-12 Patrick Palka <ppalka@redhat.com>
4804 LWG 3389 and LWG 3390
4805 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
4806 constructing the move_iterator with __i.
4807 (counted_iterator::counted_iterator): Use std::move when initializing
4809 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
4810 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
4812 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
4817 * configure: Regenerated.
4819 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
4821 * include/bits/hashtable.h
4822 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
4823 missing std namespace qualification to forward call.
4825 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
4827 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
4829 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
4831 * include/std/ranges: Fix non-ASCII characters in comment.
4833 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
4834 equality comparison to be valid and return bool.
4835 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
4836 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
4837 type with ambiguous conversion to fundamental types.
4838 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
4840 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
4842 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
4844 (readable_traits): Rename to indirectly_readable_traits.
4845 (readable): Rename to indirectly_readable.
4846 (writable): Rename to indirectly_writable.
4847 (__detail::__iter_exchange_move): Do not use remove_reference_t.
4848 (indirectly_swappable): Adjust requires expression parameter types.
4850 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
4851 (ranges::replace_if, ranges::generate_n, ranges::generate)
4852 (ranges::remove): Use new name for writable.
4853 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
4854 Use new name for readable.
4855 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
4856 new name for readable_traits.
4857 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
4858 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
4859 new definition of indirectly_readable.
4861 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
4862 to take parameters of common_iterator, instead of the common_iterator
4863 type itself. Fix argument for __common_iter_has_arrow constraint.
4864 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
4866 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
4868 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
4870 (basic_istream_view::_Iterator::operator++()): Add missing return.
4872 2020-02-07 Patrick Palka <ppalka@redhat.com>
4874 * include/bits/ranges_algo.h: Remove extraneous &&.
4876 * include/std/ranges (ranges::__detail::__stream_extractable,
4877 ranges::basic_istream_view, ranges::istream_view): Define.
4878 * testsuite/std/ranges/istream_view: New test.
4880 Implement C++20 range adaptors
4881 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
4882 (subrange::_S_store_size): Mark as const instead of constexpr to
4883 avoid what seems to be a bug in GCC.
4884 (__detail::__box): Give it defaulted copy and move constructors.
4885 (ranges::views::_Single::operator()): Mark constexpr.
4886 (ranges::views::_Iota::operator()): Mark constexpr.
4887 (__detail::Empty): Define.
4888 (ranges::views::__closure::_RangeAdaptor,
4889 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
4890 ranges::views::all, ranges::__detail::find_if,
4891 ranges::__detail::find_if_not, ranges::__detail::mismatch,
4892 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
4893 ranges::views::transform, take_view, ranges::views::take,
4894 take_while_view, ranges::views::take_while, drop_view,
4895 ranges::views::drop, join_view, ranges::views::join,
4896 __detail::require_constant, __detail::tiny_range, split_view,
4897 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
4898 common_view, ranges::views::common, reverse_view,
4899 ranges::views::reverse,
4900 ranges::views::__detail::__is_reversible_subrange,
4901 ranges::views::__detail::__is_reverse_view, reverse_view,
4902 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
4903 ranges::views::elements, ranges::views::keys, ranges::views::values):
4905 (views): Alias for ranges::views.
4906 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
4907 tuple_element<1, ranges::subrange>): New partial specializations.
4908 * testsuite/std/ranges/adaptors/all.cc: New test.
4909 * testsuite/std/ranges/adaptors/common.cc: Likewise.
4910 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
4911 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
4912 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
4913 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
4914 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
4915 * testsuite/std/ranges/adaptors/join.cc: Likewise.
4916 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
4917 * testsuite/std/ranges/adaptors/split.cc: Likewise.
4918 * testsuite/std/ranges/adaptors/take.cc: Likewise.
4919 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
4920 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
4922 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
4924 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
4925 type of enumerations and comparison category types.
4926 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
4927 (__cmp_cat::_Ncmp::unordered): Change value to 2.
4928 (partial_ordering::_M_value, weak_ordering::_M_value)
4929 (strong_ordering::_M_value): Change type to __cmp_cat::type.
4930 (partial_ordering::_M_is_ordered): Remove data member.
4931 (partial_ordering): Use second bit of _M_value for unordered. Adjust
4932 comparison operators.
4933 (weak_ordering::operator partial_ordering): Simplify to remove
4935 (operator<=>(unspecified, weak_ordering)): Likewise.
4936 (strong_ordering::operator partial_ordering): Likewise.
4937 (strong_ordering::operator weak_ordering): Likewise.
4938 (operator<=>(unspecified, strong_ordering)): Likewise.
4939 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
4940 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
4941 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
4943 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
4944 __cpp_lib_three_way_comparison macro and use deduced return type for
4946 * testsuite/std/ranges/iota/iterator.cc: New test.
4948 2020-02-07 Patrick Palka <ppalka@redhat.com>
4949 Jonathan Wakely <jwakely@redhat.com>
4951 Implement C++20 constrained algorithms
4952 * include/Makefile.am: Add new header.
4953 * include/Makefile.in: Regenerate.
4954 * include/std/algorithm: Include <bits/ranges_algo.h>.
4955 * include/bits/ranges_algo.h: New file.
4956 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
4957 * testsuite/25_algorithms/all_of/constrained.cc: New test.
4958 * testsuite/25_algorithms/any_of/constrained.cc: New test.
4959 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
4960 * testsuite/25_algorithms/copy/constrained.cc: New test.
4961 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
4962 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
4963 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
4964 * testsuite/25_algorithms/count/constrained.cc: New test.
4965 * testsuite/25_algorithms/count_if/constrained.cc: New test.
4966 * testsuite/25_algorithms/equal/constrained.cc: New test.
4967 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
4968 * testsuite/25_algorithms/fill/constrained.cc: New test.
4969 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
4970 * testsuite/25_algorithms/find/constrained.cc: New test.
4971 * testsuite/25_algorithms/find_end/constrained.cc: New test.
4972 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
4973 * testsuite/25_algorithms/find_if/constrained.cc: New test.
4974 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
4975 * testsuite/25_algorithms/for_each/constrained.cc: New test.
4976 * testsuite/25_algorithms/generate/constrained.cc: New test.
4977 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
4978 * testsuite/25_algorithms/heap/constrained.cc: New test.
4979 * testsuite/25_algorithms/includes/constrained.cc: New test.
4980 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
4981 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
4982 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
4983 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
4984 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
4985 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
4987 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
4988 * testsuite/25_algorithms/max/constrained.cc: New test.
4989 * testsuite/25_algorithms/max_element/constrained.cc: New test.
4990 * testsuite/25_algorithms/merge/constrained.cc: New test.
4991 * testsuite/25_algorithms/min/constrained.cc: New test.
4992 * testsuite/25_algorithms/min_element/constrained.cc: New test.
4993 * testsuite/25_algorithms/minmax/constrained.cc: New test.
4994 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
4995 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
4996 * testsuite/25_algorithms/move/constrained.cc: New test.
4997 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
4998 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
4999 * testsuite/25_algorithms/none_of/constrained.cc: New test.
5000 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
5001 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
5002 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
5003 * testsuite/25_algorithms/partition/constrained.cc: New test.
5004 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
5005 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
5006 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
5007 * testsuite/25_algorithms/remove/constrained.cc: New test.
5008 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
5009 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
5010 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
5011 * testsuite/25_algorithms/replace/constrained.cc: New test.
5012 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
5013 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
5014 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
5015 * testsuite/25_algorithms/reverse/constrained.cc: New test.
5016 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
5017 * testsuite/25_algorithms/rotate/constrained.cc: New test.
5018 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
5019 * testsuite/25_algorithms/search/constrained.cc: New test.
5020 * testsuite/25_algorithms/search_n/constrained.cc: New test.
5021 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
5022 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
5023 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
5025 * testsuite/25_algorithms/set_union/constrained.cc: New test.
5026 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
5027 * testsuite/25_algorithms/sort/constrained.cc: New test.
5028 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
5029 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
5030 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
5031 * testsuite/25_algorithms/transform/constrained.cc: New test.
5032 * testsuite/25_algorithms/unique/constrained.cc: New test.
5033 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
5034 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
5036 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
5038 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
5039 number in comment. Fix indentation.
5041 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
5042 redundant _GLIBCXX20_CONSTEXPR.
5044 * include/std/ranges (viewable_range): Replace decay_t with
5045 remove_cvref_t (LWG 3375).
5047 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
5049 * include/bits/iterator_concepts.h (iter_reference_t)
5050 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
5051 Remove workarounds for PR c++/67704.
5052 * testsuite/24_iterators/aliases.cc: New test.
5054 2020-02-05 Patrick Palka <ppalka@redhat.com>
5056 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
5057 when initializing _M_current.
5058 (move_iterator::base): Split into two overloads differing in
5059 ref-qualifiers as in P1207R4 for C++20.
5061 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
5063 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
5067 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
5068 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
5069 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
5071 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
5073 * configure: Regenerate.
5075 2020-01-31 Patrick Palka <ppalka@redhat.com>
5077 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
5078 test_range::end() returns the same type as test_range::begin().
5079 * testsuite/24_iterators/range_operations/next.cc: Likewise.
5080 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
5081 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
5082 Always return a sentinel<I>.
5084 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
5087 * include/std/stop_token (stop_token::stop_possible()): Call new
5088 _M_stop_possible() function.
5089 (stop_token::stop_requested()): Do not use stop_possible().
5090 (stop_token::binary_semaphore): New class, as temporary stand-in for
5091 std::binary_semaphore.
5092 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
5093 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
5094 New data members for symchronization with stop_callback destruction.
5095 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
5096 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
5098 (stop_token::_Stop_cb::_M_run): New member function.
5099 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
5101 (stop_token::_Stop_state::_M_owners): New data member to track
5102 reference count for ownership.
5103 (stop_token::_Stop_state::_M_value): New data member combining a
5104 spinlock, the stop requested flag, and the reference count for
5105 associated stop_source objects.
5106 (stop_token::_Stop_state::_M_requester): New data member for
5107 synchronization with stop_callback destruction.
5108 (stop_token::_Stop_state::_M_stop_possible()): New member function.
5109 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
5111 (stop_token::_Stop_state::_M_add_owner)
5112 (stop_token::_Stop_state::_M_release_ownership)
5113 (stop_token::_Stop_state::_M_add_ssrc)
5114 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
5115 updating reference counts.
5116 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
5117 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
5118 (stop_token::_Stop_state::_M_try_lock)
5119 (stop_token::_Stop_state::_M_try_lock_and_stop)
5120 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
5122 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
5123 read and update state. Release lock while running callbacks. Use new
5124 data members to synchronize with callback destruction.
5125 (stop_token::_Stop_state::_M_remove_callback): Likewise.
5126 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
5127 to read and update state.
5128 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
5129 replacing shared_ptr.
5130 (stop_source::stop_source(const stop_source&)): Update reference count.
5131 (stop_source::operator=(const stop_source&)): Likewise.
5132 (stop_source::~stop_source()): Likewise.
5133 (stop_source::stop_source(stop_source&&)): Define as defaulted.
5134 (stop_source::operator=(stop_source&&)): Establish postcondition on
5136 (stop_callback): Enforce preconditions on template parameter. Replace
5137 base class with data member of new _Cb_impl type.
5138 (stop_callback::stop_callback(const stop_token&, Cb&&))
5139 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
5140 (stop_callback::_Cb_impl): New type wrapping _Callback member and
5141 defining the _S_execute member function.
5142 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
5144 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
5145 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
5146 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
5148 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
5150 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
5151 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
5152 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
5155 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
5156 three_way_comparable_with.
5157 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
5158 (compare_three_way::operator()): Remove redundant constraint from
5160 (__detail::_Synth3way::operator()): Use three_way_comparable_with
5161 instead of workaround.
5162 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
5163 output due to simplified constraints on compare_three_way::operator().
5166 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
5167 * testsuite/18_support/comparisons/object/93479.cc: New test.
5169 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
5170 returns the same type as test_range::begin(). Add comments.
5171 * testsuite/std/ranges/access/rbegin.cc: Likewise.
5172 * testsuite/std/ranges/access/rend.cc: Likewise.
5173 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
5174 test_range is the same as its iterator type.
5175 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
5176 operator- overloads to satisfy sized_sentinel_for when the iterator
5177 satisfies random_access_iterator.
5179 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
5182 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
5183 static assertion to object types.
5186 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
5187 clock_gettime instead of explicit glibc version check.
5188 * configure: Regenerate.
5190 2020-01-28 Martin Liska <mliska@suse.cz>
5193 * include/std/atomic: Fix typo.
5194 * include/std/optional: Likewise.
5196 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
5198 * configure: Regenerate.
5200 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
5203 * include/std/span (span): Fix deduction guide.
5204 * testsuite/23_containers/span/deduction.cc: New test.
5206 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
5208 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
5209 (__cmp_cat::_Ord::equivalent): Add enumerator.
5210 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
5212 (partial_ordering, weak_ordering, strong_ordering): Remove
5213 constructors taking __cmp_cat::_Eq parameters. Use renamed
5216 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
5218 * acinclude.m4: Handle `--with-toolexeclibdir='.
5219 * Makefile.in: Regenerate.
5220 * aclocal.m4: Regenerate.
5221 * configure: Regenerate.
5222 * doc/Makefile.in: Regenerate.
5223 * include/Makefile.in: Regenerate.
5224 * libsupc++/Makefile.in: Regenerate.
5225 * po/Makefile.in: Regenerate.
5226 * python/Makefile.in: Regenerate.
5227 * src/Makefile.in: Regenerate.
5228 * src/c++11/Makefile.in: Regenerate.
5229 * src/c++17/Makefile.in: Regenerate.
5230 * src/c++98/Makefile.in: Regenerate.
5231 * src/filesystem/Makefile.in: Regenerate.
5232 * testsuite/Makefile.in: Regenerate.
5234 2020-01-23 Alexandre Oliva <oliva@adacore.com>
5236 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
5237 * configure: Rebuild.
5239 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
5241 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
5244 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
5246 * include/Makefile.in: Regenerate.
5248 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
5250 * doc/xml/faq.xml: Fix grammar.
5251 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
5252 * doc/xml/manual/spine.xml: Update copyright years.
5253 * doc/html/*: Regenerate.
5255 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
5257 * doc/xml/faq.xml: Update for SVN -> Git transition.
5258 * doc/xml/manual/appendix_contributing.xml: Likewise.
5259 * doc/xml/manual/status_cxx1998.xml: Likewise.
5260 * doc/xml/manual/status_cxx2011.xml: Likewise.
5261 * doc/xml/manual/status_cxx2014.xml: Likewise.
5262 * doc/xml/manual/status_cxx2017.xml: Likewise.
5263 * doc/xml/manual/status_cxx2020.xml: Likewise.
5264 * doc/xml/manual/status_cxxtr1.xml: Likewise.
5265 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
5267 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
5269 * include/Makefile.am: Add coroutine to the std set.
5270 * include/Makefile.in: Regenerated.
5271 * include/std/coroutine: New file.
5273 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
5276 * include/bits/c++config: Only do PSTL config when the header is
5277 present, to fix freestanding.
5278 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
5279 functions if they were detected by configure.
5281 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
5282 Matthew Bauer <mjbauer95@gmail.com>
5283 Jonathan Wakely <jwakely@redhat.com>
5285 PR bootstrap/64271 (partial)
5286 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
5288 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
5289 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
5290 definitions with NetBSD upstream.
5291 (ctype_base::blank): Use _CTYPE_BL.
5292 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
5294 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
5295 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
5296 parameters to unsigned char.
5297 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
5299 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
5302 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
5303 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
5304 (_Equality_base): Remove.
5305 (_Equality<>::_M_equal): Review implementation. Use
5306 std::is_permutation.
5307 * testsuite/23_containers/unordered_multiset/operators/1.cc
5308 (Hash, Equal, test02, test03): New.
5309 * testsuite/23_containers/unordered_set/operators/1.cc
5310 (Hash, Equal, test02, test03): New.
5312 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
5315 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
5316 Move here from <bits/range_access.h> and define using __int128 when
5318 (__is_integer_like, __is_signed_integer_like): Move here from
5319 <bits/range_access.h>.
5320 (weakly_incrementable): Use __is_signed_integer_like.
5321 * include/bits/range_access.h (__max_diff_type, __max_size_type)
5322 (__is_integer_like, __is_signed_integer_like): Move to
5323 <bits/iterator_concepts.h>.
5324 (__make_unsigned_like_t): Move here from <ranges>.
5325 * include/std/ranges (__make_unsigned_like_t): Move to
5326 <bits/range_access.h>.
5327 (iota_view): Replace using-directive with using-declarations.
5328 * testsuite/std/ranges/iota/93267.cc: New test.
5329 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
5331 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
5334 * include/bits/fs_path.h (path::generic_string<C,A>)
5335 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
5336 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
5337 root-dir is converted to forward slash in generic pathname.
5338 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
5339 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
5342 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
5344 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
5345 (__atomic_float): Add default member initializer for C++20.
5346 * include/std/atomic (atomic): Likewise.
5347 (atomic::atomic()): Remove noexcept-specifier on default constructor.
5348 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
5349 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
5351 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
5352 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
5353 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
5354 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
5355 expected result for is_trivially_default_constructible.
5356 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
5357 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
5358 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
5359 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
5360 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
5361 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
5362 expected results for is_trivially_default_constructible.
5363 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
5366 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
5368 * testsuite/util/testsuite_iterators.h: Improve comment.
5370 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
5371 initialization syntax.
5374 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
5375 of base class independent of __cplusplus value.
5376 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
5377 type defined in the base class
5378 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
5379 * testsuite/24_iterators/istreambuf_iterator/requirements/
5380 base_classes.cc: Adjust expected base class for C++98.
5382 2020-01-09 Olivier Hainque <hainque@adacore.com>
5384 * doc/xml/manual/appendix_contributing.xml: Document _C2
5385 as a reserved identifier, by VxWorks.
5386 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
5387 * include/bits/stl_multimap.h: Likewise.
5389 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
5391 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
5392 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
5393 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
5394 partial specialization to disambiguate the two constrained
5397 * include/experimental/type_traits (experimental::is_pod_v): Disable
5398 -Wdeprecated-declarations warnings around reference to std::is_pod.
5399 * include/std/type_traits (is_pod_v): Likewise.
5400 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
5401 is_standard_layout and is_trivial. Do not check is_pod for C++20.
5402 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
5403 Add -Wno-deprecated for C++20.
5404 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
5405 * testsuite/20_util/is_pod/value.cc: Likewise.
5406 * testsuite/experimental/type_traits/value.cc: Likewise.
5408 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
5410 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
5411 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
5412 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
5414 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
5417 * include/bits/random.h (operator>>): Check stream operation succeeds.
5418 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
5420 (operator>>): Remove redundant __istream_type typedefs. Check stream
5422 (__extract_params): New function to fill a vector from a stream.
5423 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
5426 * config/abi/pre/gnu.ver: Add new exports.
5427 * include/std/memory_resource (memory_resource::~memory_resource()):
5428 Do not define inline.
5429 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
5430 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
5432 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
5433 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
5435 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
5438 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
5440 (_Hashtable<>::__fwd_value_for): New.
5441 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
5443 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
5444 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
5445 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
5447 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
5448 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
5450 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
5452 * testsuite/23_containers/unordered_set/92124.cc: New.
5454 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
5457 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
5458 detailed error reporting for remove_all. Check result of recursive
5459 call before incrementing iterator.
5460 (remove_all(const path&), remove_all(const path&, error_code&)): Use
5462 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
5463 result of recursive call before incrementing iterator.
5464 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
5465 are reported correctly.
5466 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
5468 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
5470 * include/std/condition_variable
5471 (condition_variable_any::wait_on): Rename to match current draft
5473 (condition_variable_any::wait_on_until): Likewise.
5474 (condition_variable_any::wait_on_for): Likewise.
5475 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
5476 Adjust tests to account for renamed methods.
5478 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
5481 * include/bits/stl_tree.h
5482 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
5483 std::move_if_noexcept by std::move.
5484 * testsuite/23_containers/map/92124.cc: New.
5485 * testsuite/23_containers/set/92124.cc: New.
5487 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
5489 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
5490 (stop_source): Likewise (LWG 3362).
5491 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
5494 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
5495 (lexicographical_compare_three_way): Do not depend on
5497 * include/std/version (__cpp_lib_three_way_comparison): Only define
5498 when __cpp_lib_concepts is defined.
5499 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
5501 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
5503 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
5504 Only define four-argument overload when __cpp_lib_concepts is defined.
5506 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
5508 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
5510 2020-01-01 Jakub Jelinek <jakub@redhat.com>
5512 Update copyright years.
5514 Copyright (C) 2020 Free Software Foundation, Inc.
5516 Copying and distribution of this file, with or without modification,
5517 are permitted in any medium without royalty provided the copyright
5518 notice and this notice are preserved.