1 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
3 * include/bits/stl_iterator.h (move_iterator::operator=): Define.
4 * testsuite/24_iterators/move_iterator/dr3265.cc: New test.
6 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
8 * include/std/optional (bad_optional_access): Define default
9 constructor and destructor as defaulted.
10 * testsuite/20_util/optional/bad_access.cc: New test.
12 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
14 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
16 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
18 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
20 * include/bits/unique_ptr.h (operator<<): Define for C++20.
21 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
23 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
25 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
26 (__detail::__cat, __detail::__diff): Move to class scope in the
27 relevant __iterator_traits specializations.
28 (__iterator_traits<>): Use nested class templates instead of ones from
30 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
31 class scope in iterator_traits<common_iterator<I, S>>.
32 (iterator_traits<common_iterator<I, S>>): Use nested class template
33 instead of __detail::__common_iter_ptr.
35 2020-06-04 François Dumont <fdumont@gcc.gnu.org>
37 * include/bits/stl_algo.h (__copy_n_a): Move to ...
38 * include/bits/stl_algobase.h (__copy_n_a): ...here. Add __strict
40 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
42 (__niter_base(const _Safe_iterator<_Ite, _Seq,
43 random_access_iterator_tag>&)): Declare.
44 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
45 _Deque_iterator<>)): Declare.
46 * include/bits/deque.tcc
47 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
48 _Deque_iterator<>)): New.
49 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
51 * include/bits/streambuf_iterator.h
52 (__copy_n_a(istreambuf_iterator<>, _Size, _CharT*, bool)): Adapt.
53 * include/debug/safe_iterator.tcc (__niter_base): New.
54 * testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc
56 * testsuite/25_algorithms/copy/streambuf_iterators/char/debug/deque_neg.cc:
58 * testsuite/25_algorithms/copy_n/debug/istreambuf_ite_deque_neg.cc:
60 * testsuite/25_algorithms/copy_n/istreambuf_iterator/2.cc: New test.
61 * testsuite/25_algorithms/copy_n/istreambuf_iterator/deque.cc:
64 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
66 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
67 ranges::copy for positive values.
68 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
69 integral type and only call __copy_n for positive values.
70 * testsuite/util/testsuite_iterators.h
71 (random_access_iterator_wrapper::operator+=): Fix range check for
73 (output_container, input_container, forward_container)
74 (bidirectional_container, random_access_container): New alias
76 * testsuite/25_algorithms/copy_n/5.cc: New test.
78 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
81 * include/debug/deque (deque(const _Base&)): Replace parameter
82 with a struct that wraps a const _Base&.
83 * include/debug/forward_list (forward_list(_Base_ref)): New
85 * include/debug/list (list(const _Base&)): Replace parameter
86 with a struct that wraps a const _Base&.
87 * include/debug/map.h (map(const _Base&)): Likewise.
88 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
89 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
90 * include/debug/set.h (set(const _Base&)): Likewise.
91 * include/debug/unordered_map (unordered_map(const _Base&))
92 (unordered_multimap(const _Base&)): Likewise.
93 * include/debug/unordered_set (unordered_set(const _Base&))
94 (unordered_multiset(const _Base&)): Likewise.
95 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
96 Adjust dg-error line number.
97 * include/debug/vector (vector(const _Base&)): Likewise.
98 * testsuite/23_containers/deque/debug/90102.cc: New test.
99 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
100 * testsuite/23_containers/list/debug/90102.cc: New test.
101 * testsuite/23_containers/map/debug/90102.cc: New test.
102 * testsuite/23_containers/multimap/debug/90102.cc: New test.
103 * testsuite/23_containers/multiset/debug/90102.cc: New test.
104 * testsuite/23_containers/set/debug/90102.cc: New test.
105 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
106 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
107 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
108 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
109 * testsuite/23_containers/vector/debug/90102.cc: New test.
111 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
114 * include/bits/fs_path.h (path::_S_to_string): Move to
115 namespace-scope and rename to ...
116 (__detail::__string_from_range): ... this.
117 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
118 convert a char sequence containing UTF-8 to wstring.
119 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
120 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
121 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
122 __string_from_range to obtain a contiguous range and
123 __wstr_from_utf8 to obtain a wide string.
124 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
125 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
127 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
128 Use __wstr_from_utf8.
130 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
132 * testsuite/util/testsuite_iterators.h:
133 (input_iterator_wrapper::operator++(int)): Return proxy object.
135 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
137 * doc/xml/manual/evolution.xml: Document deprecation of
138 __is_nullptr_t and removal of std::allocator members.
139 * doc/html/manual/api.html: Regenerate.
141 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
143 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
144 * doc/xml/manual/evolution.xml: Likewise.
145 * doc/html/manual/api.html: Regenerate.
146 * doc/html/manual/containers.html: Regenerate.
148 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
150 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
151 * doc/html/faq.html: Regenerate.
153 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
155 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
158 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
160 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
161 www.cs.princeton.edu to https.
162 * doc/html/manual/policy_data_structures.html: Regenerate.
164 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
166 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
167 * configure: Rebuild.
169 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
172 * configure: Regenerated.
174 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
177 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
178 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
179 (unordered_map<>::insert_or_assign): Adapt.
181 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
184 * include/bits/atomic_base.h (__atomic_impl::load): Add
185 cv-qualifiers to parameter so that _Tp is deduced as the
187 * testsuite/29_atomics/atomic_float/95282.cc: New test.
189 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
192 * include/std/ranges (transform_view::_Sentinel): Allow hidden
193 friends to work with _Iterator<true> and _Iterator<false>.
194 (join_view::_Sentinel): Likewise.
195 * testsuite/std/ranges/adaptors/95322.cc: New test.
197 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
200 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
201 operators to use the correct operations on the underlying
203 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
205 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
207 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
209 2020-05-26 Patrick Palka <ppalka@redhat.com>
212 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
213 Remove and instead define it ...
214 (common_iterator::_Proxy): ... here.
215 (common_iterator::operator->): Use it.
216 * testsuite/24_iterators/common_iterator/2.cc: New test.
217 * testsuite/std/ranges/adaptors/95322.cc: New test.
219 2020-05-23 Patrick Palka <ppalka@redhat.com>
222 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
223 dg-additional-options. Avoid unused-but-set-variable warning.
225 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
228 * include/debug/helper_functions.h (__get_distance): Only declare
229 as a constexpr function for C++14 and up.
230 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
232 * include/bits/fs_path.h (__detail::_S_range_begin)
233 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
234 overloaded function template __detail::__effective_range.
235 (__detail::__effective_range): New overloaded function template to
236 create a basic_string or basic_string_view for an effective range.
237 (__detail::__value_type_is_char): Use __detail::__effective_range.
238 Do not use remove_const on value type.
239 (__detail::__value_type_is_char_or_char8_t): Likewise.
240 (path::path(const Source&, format))
241 (path::path(const Source&, const locale&))
242 (path::operator/=(const Source&), path::append(const Source&))
243 (path::concat(const Source&)): Use __detail::__effective_range.
244 (path::_S_to_string(InputIterator, InputIterator)): New function
245 template to create a string view if possible, or string otherwise.
246 (path::_S_convert): Add overloads that convert a string returned
247 by __detail::__effective_range. Use if-constexpr to inline conversion
248 logic from all overloads of _Cvt::_S_convert.
249 (path::_S_convert_loc): Add overload that converts a string. Use
250 _S_to_string to avoid allocation when possible.
251 (path::_Cvt): Remove.
252 (path::operator+=(CharT)): Remove indirection through path::concat.
253 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
254 overload for non-const pointers, to avoid constructing a std::string.
255 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
256 compilation with call to _S_convert.
258 * include/bits/fs_path.h (__detail::_S_range_begin)
259 (__detail::_S_range_end): Remove unintentional static specifiers.
260 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
261 (__detail::_S_range_end): Likewise.
263 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
264 Replace alias template with variable template. Don't remove const.
265 (filesystem::__detail::__is_path_src): Replace overloaded function
266 template with variable template and specializations.
267 (filesystem::__detail::__is_path_iter_src): Replace alias template
269 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
271 (filesystem::__detail::_Path2): New alias template for checking
272 InputIterator requirements.
273 (filesystem::__detail::__constructible_from): Remove.
274 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
275 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
276 constructor arguments of void and void* types.
278 2020-05-21 Matthias Kretz <kretz@kde.org>
280 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
281 allowing runtest to work without arguments.
282 * testsuite/Makefile.in: Regenerate.
284 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
287 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
288 Reorder constraints to avoid recursion when constructors use
289 iterator_traits (LWG 3420).
290 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
292 * include/experimental/socket (basic_socket::is_open()
293 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
295 * include/experimental/bits/net.h (__endpoint, __protocol)
296 (__acceptable_protocol, __inet_protocol): New concepts.
297 (__detail::__is_endpoint): Move trait from <experimental/socket>.
298 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
300 (__endpoint, __protocol, __acceptable_protocol): New variable
302 * include/experimental/socket (__is_endpoint): Move to net.h header.
303 (basic_socket, basic_socket_acceptor): Check requirements.
305 * include/experimental/executor (use_future_t::use_future_t()): Fix
306 incorrect noexcept-specifier.
307 * include/experimental/internet (basic_resolver_results): Adjust
309 * include/experimental/socket (__basic_socket_impl::release): Add
311 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
313 (basic_socket::release(), basic_socket::release(error_code&)): Add
314 missing member functions.
315 (basic_socket::is_open()): Add nodiscard attribute.
316 (basic_socket::close(error_code&)): Pass argument to base function.
317 (basic_socket_acceptor::release())
318 (basic_socket_acceptor::release(error_code&)): Add missing member
320 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
321 (basic_socket_streambuf::error()): Add noexcept.
322 (basic_socket_iostream::error()): Likewise.
323 * testsuite/experimental/net/socket/basic_socket.cc: New test.
325 * include/experimental/buffer: Replace typedefs with
327 * include/experimental/executor: Likewise.
328 * include/experimental/internet: Likewise.
329 * include/experimental/socket: Likewise.
330 * include/experimental/timer: Likewise.
332 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
335 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
337 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
339 (random_device::_M_init): Use __x86_rdseed_rdrand when both
340 instructions are available.
341 * testsuite/26_numerics/random/random_device/94087.cc: New test.
343 2020-05-19 Patrick Palka <ppalka@redhat.com>
346 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
348 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
350 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
353 * configure: Regenerated.
355 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
357 * configure: Regenerated.
359 2020-05-13 Alexandre Oliva <oliva@adacore.com>
362 * include/experimental/memory_resource
363 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
364 x86-vxworks as on x86-solaris.
365 (__resource_adaptor_imp::do_deallocate): Likewise.
366 * testsuite/experimental/memory_resource/new_delete_resource.cc:
368 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
369 (test03): Drop max-align test for char-aligned alloc.
371 2020-05-08 Ulrich Drepper <drepper@redhat.com>
373 * include/bits/atomic_base.h (atomic_flag): Implement test member
375 * include/std/version: Define __cpp_lib_atomic_flag_test.
376 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
377 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
379 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
381 PR libstdc++/94971 (partial)
382 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
383 std::sample using macro to work in parallel mode.
384 (__sort_fn): Likewise for std::sort.
385 (ranges::__nth_element_fn): Likewise for std::nth_element.
386 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
387 Likewise for std::__min_cmp.
388 * include/parallel/algobase.h (lexicographical_compare_three_way):
389 Add to namespace std::__parallel.
392 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
393 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
394 (_UnguardedIterator::operator _RAIter): Add const qualifier.
395 (operator<(_GuardedIterator&, _GuardedIterator&)
396 (operator<=(_GuardedIterator&, _GuardedIterator&)
397 (operator<(_UnguardedIterator&, _UnguardedIterator&)
398 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
399 parameters to const references.
401 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
403 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
404 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
406 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
408 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
409 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
410 * include/bits/stl_bvector.h (__fill_bvector): Move outside
411 _GLIBCXX_STD_C namespace.
412 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
414 (__fill_a1): ...this.
415 * testsuite/25_algorithms/fill/bvector/1.cc: New.
417 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
419 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
421 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
423 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
424 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
426 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
427 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
430 2020-05-06 Martin Liska <mliska@suse.cz>
433 2020-05-05 Martin Liska <mliska@suse.cz>
435 * include/parallel/multiway_merge.h:
436 Use const for _Compare template argument.
438 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
440 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
441 versions for GCC 9.[123] and 10.1 releases.
442 * doc/html/*: Regenerate.
444 2020-05-06 Jakub Jelinek <jakub@redhat.com>
446 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
447 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
448 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
449 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
450 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
451 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
452 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
454 2020-05-05 Martin Liska <mliska@suse.cz>
457 * include/parallel/multiway_merge.h:
458 Use const for _Compare template argument.
460 2020-05-04 Fangrui Song <maskray@google.com>
462 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
464 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
466 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
467 * doc/html/*: Regenerate.
470 * src/c++17/memory_resource.cc
471 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
474 2020-05-04 Nathan Sidwell <nathan@acm.org>
477 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
478 ptrdiff_t before negation, to show intent more clearly.
480 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
483 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
484 Add comment about single-threaded behaviour.
485 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
486 class member access out of loop.
487 (synchronized_pool_resource::synchronized_pool_resource())
488 (synchronized_pool_resource::~synchronized_pool_resource())
489 (synchronized_pool_resource::release()): Check __gthread_active_p
490 before creating and/or deleting the thread-specific data key.
491 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
493 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
494 path for single-threaded case.
495 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
496 Likewise. Return if unable to find a pool that owns the allocation.
497 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
499 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
501 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
504 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
507 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
508 usable in constant expressions.
509 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
512 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
515 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
517 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
518 Patrick Palka <ppalka@redhat.com>
521 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
522 Add trait to determine return type and an alias for it.
523 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
525 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
526 the result of ranges::iter_move.
527 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
528 instead of checking the result of ranges::iter_move.
529 * testsuite/24_iterators/customization_points/92894.cc: New test.
530 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
532 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
535 * include/std/type_traits (__is_complete_or_unbounded): Replace
537 * testsuite/17_intro/badnames.cc: New test.
539 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
542 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
543 (allocator_traits::_S_destroy)
544 (allocator_traits<allocator<T>>::construct): Use traits in
546 * include/bits/allocator.h (allocator<void>::construct)
547 (allocator<void>::destroy): Likewise.
548 * include/ext/malloc_allocator.h (malloc_allocator::construct)
549 (malloc_allocator::destroy): Likewise.
550 * include/ext/new_allocator.h (new_allocator::construct)
551 (new_allocator::destroy): Likewise.
552 * testsuite/20_util/allocator/89510.cc: New test.
553 * testsuite/ext/malloc_allocator/89510.cc: New test.
554 * testsuite/ext/new_allocator/89510.cc: New test.
556 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
559 * include/bits/basic_string.tcc: Update comment about explicit
562 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
565 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
566 Remove non-standard macro.
567 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
568 to indicate P1032R1 support.
569 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
570 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
571 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
572 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
573 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
574 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
575 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
577 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
578 * testsuite/21_strings/basic_string_view/operations/copy/char/
579 constexpr.cc: Likewise.
580 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
583 * include/bits/alloc_traits.h (_S_construct): Restore placement
584 new-expression for C++11/14/17 and call std::construct_at directly
586 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
587 function returning void.
588 * testsuite/20_util/specialized_algorithms/
589 uninitialized_value_construct/94831.cc: New test.
590 * testsuite/23_containers/vector/cons/94831.cc: New test.
592 2020-04-28 Patrick Palka <ppalka@redhat.com>
594 LWG 3433 subrange::advance(n) has UB when n < 0
595 * include/std/ranges (subrange::prev): Fix typo.
596 (subrange::advance): Handle a negative argument as per the proposed
597 resolution of LWG 3433.
598 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
600 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
601 Iain Sandoe <iain@sandoe.co.uk>
604 * include/std/coroutine: Implement handing for non-
605 class coroutine return types.
607 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
609 * include/experimental/executor (service_already_exists): Make default
610 constructor public (LWG 3414).
611 * testsuite/experimental/net/execution_context/make_service.cc: Check
612 the service_already_exists can be default constructed.
614 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
615 Jonathan Wakely <jwakely@redhat.com>
619 * include/std/any (any): Rename template parameters for consistency
621 (any::_Decay): Rename to _Decay_if_not_any.
622 (any::any(T&&):: Remove is_constructible from constraints. Remove
623 non-standard overload.
624 (any::any(in_place_type_t<T>, Args&&...))
625 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
626 (any::emplace(Args&&...))
627 (any::emplace(initializer_list<U>, Args&&...)):
628 Use decay_t instead of _Decay.
629 * testsuite/20_util/any/cons/90415.cc: New test.
630 * testsuite/20_util/any/cons/92156.cc: New Test.
631 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
633 * testsuite/20_util/any/modifiers/92156.cc: New test.
635 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
637 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
638 * doc/html/*: Regenerate.
640 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
641 value for C++17 to 201803L because P0858R0 is supported for C++17.
642 * include/std/version (__cpp_lib_array_constexpr): Likewise.
643 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
644 Check for value corresponding to P0031R0 features being tested.
645 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
646 Check for value corresponding to P0858R0 features being tested.
648 * include/std/version (__cpp_lib_three_way_comparison): Define for
651 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
653 * include/experimental/net/executor (system_context): Mark
654 system_context::system_context() = delete.
655 * testsuite/experimental/net/executor/1.cc: Add new
656 test to check system_context is not default constructible.
658 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
660 * include/std/coroutine: Update the inline namespace to __n4861.
661 Add the __cpp_lib_coroutine define, set to 201902L.
662 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
664 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
666 * include/std/execution (__cpp_lib_execution): Define to indicate
667 support for P0024R2 and P1001R2.
668 * include/std/version (__cpp_lib_execution): Define.
669 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
670 defined by <algorithm>, move other tests to new tests ...
671 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
672 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
673 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
674 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
676 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
677 different values for C++17 and C++20, to indicate different feature
678 sets. Update value for C++20 to indicate P1032R1 support.
679 * include/std/version (__cpp_lib_array_constexpr): Likewise.
680 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
681 Check feature test macro.
682 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
684 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
686 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
687 in C++17 mode and check feature test macro.
689 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
691 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
692 defined by <utility>.
694 * include/std/functional (__cpp_lib_concepts): Update macro value to
695 indicate P1964R2 support.
696 * include/std/version (__cpp_lib_concepts): Likewise.
697 * testsuite/std/concepts/1.cc: Adjust expected value.
698 * testsuite/std/concepts/2.cc: Likewise.
700 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
701 __cpp_lib_constexpr_functional.
702 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
703 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
705 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
706 indicate P1006R1 support.
707 (__cpp_lib_to_address): Define to indicate P0653R2 support.
708 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
710 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
712 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
714 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
716 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
717 Define to indicate P0339R6 support.
718 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
719 indicate P0457R2 support.
720 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
721 to indicate P0758R1 support.
722 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
723 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
724 * include/std/version (__cpp_lib_atomic_float)
725 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
726 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
727 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
728 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
729 (__cpp_lib_to_address): Define.
730 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
732 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
734 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
736 * include/std/version (__cpp_lib_map_insertion)
737 (__cpp_lib_unordered_map_insertion): Remove.
739 * include/std/condition_variable (__cpp_lib_jthread): Remove
740 redundant definition.
741 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
742 indicate P1869R1 support.
743 * include/std/version (__cpp_lib_jthread): Update value.
744 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
745 for updated macro value.
746 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
748 * testsuite/30_threads/jthread/1.cc: Likewise.
749 * testsuite/30_threads/jthread/2.cc: Likewise.
750 * testsuite/30_threads/stop_token/1.cc: Likewise.
751 * testsuite/30_threads/stop_token/2.cc: Likewise.
753 * testsuite/21_strings/basic_string/erasure.cc: Check for
754 __cpp_lib_erase_if macro.
755 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
757 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
758 * testsuite/23_containers/list/erasure.cc: Likewise.
759 * testsuite/23_containers/map/erasure.cc: Likewise.
760 * testsuite/23_containers/set/erasure.cc: Likewise.
761 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
762 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
763 * testsuite/23_containers/vector/erasure.cc: Likewise.
765 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
767 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
768 to define operator<=>.
769 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
771 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
772 * doc/Makefile.in: Regenerate.
773 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
775 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
776 to the C++11 status table.
777 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
778 proposals with table matching contents of the C++14 standard.
779 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
781 * doc/html/*: Regenerate.
784 * include/std/type_traits (__is_nt_constructible_impl): Add partial
785 specializations for bounded arrays with non-empty initializers.
786 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
788 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
790 * testsuite/lib/libstdc++.exp: Add additional_flags=
791 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
792 compiling with a newer Thread Building Blocks.
794 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
796 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
798 * testsuite/20_util/is_constructible/51185.cc: Make test class a
799 non-aggregate so that the test verifies the same thing in all -std
801 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
802 results for some types when paren-init for aggregates is supported.
804 * include/std/version (__cpp_lib_three_way_comparison): Update value.
805 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
806 (__detail::__synth3way): Add noexcept-specifier.
808 * include/bits/stl_map.h (map): Define operator<=> and remove
810 * include/bits/stl_multimap.h (multimap): Likewise.
811 * include/bits/stl_multiset.h (multiset): Likewise.
812 * include/bits/stl_set.h (set): Likewise.
813 * include/bits/stl_tree.h (_Rb_tree): Likewise.
814 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
815 operator!= for C++20.
816 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
817 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
818 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
819 * include/debug/set.h (__gnu_debug::set): Likewise.
820 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
821 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
822 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
823 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
825 2020-04-20 Matthias Kretz <kretz@kde.org>
827 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
829 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
831 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
832 * include/bits/stl_stack.h (stack): Likewise.
833 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
834 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
836 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
837 Remove redundant operator!= for C++20.
838 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
840 * include/debug/unordered_map (unordered_map, unordered_multimap):
842 * include/debug/unordered_set (unordered_set, unordered_multiset):
846 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
847 redundant assignment in constructor.
849 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
851 * include/std/chrono (duration, time_point): Define operator<=> and
852 remove redundant operator!= for C++20.
853 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
855 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
858 * testsuite/util/native_type/native_priority_queue.hpp: Use
859 allocator_traits to rebind allocator.
861 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
863 * include/bits/forward_list.h (forward_list): Define operator<=> and
864 remove redundant comparison operators for C++20.
865 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
866 * include/bits/stl_deque.h (deque): Likewise.
867 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
868 * include/bits/stl_list.h (list): Likewise.
869 * include/bits/stl_vector.h (vector): Likewise.
870 * include/debug/deque (__gnu_debug::deque): Likewise.
871 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
872 * include/debug/list (__gnu_debug::list): Likewise.
873 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
875 * include/debug/vector (__gnu_debug::vector): Likewise.
876 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
877 operator<=> for C++20.
878 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
879 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
880 * testsuite/23_containers/list/cmp_c++20.cc: New test.
881 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
882 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
884 * include/bits/basic_string.h (basic_string): Define operator<=> and
885 remove redundant comparison operators for C++20.
886 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
887 Add comparison_category members.
888 (__detail::__char_traits_cmp_cat): New helper to get comparison
889 category from char traits class.
890 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
892 (sub_match): Define operator<=> and remove redundant comparison
894 (match_results): Remove redundant operator!= for C++20.
895 * include/std/string_view (basic_string_view): Define operator<=> and
896 remove redundant comparison operators for C++20.
897 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
899 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
901 * testsuite/21_strings/basic_string_view/operations/copy/char/
902 constexpr.cc: Initialize variable.
903 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
904 constexpr.cc: Likewise.
905 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
906 dg-do directive and remove comments showing incorrect signatures.
907 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
909 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
911 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
913 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
915 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
917 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
918 name of unused parameter.
920 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
922 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
923 (directory_entry): Define operator<=> and remove redundant comparison
925 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
926 * include/bits/fs_path.h (path): Define operator<=> and remove
927 redundant comparison operators for C++20.
928 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
929 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
930 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
931 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
933 * include/bits/allocator.h (operator!=): Do not define for C++20.
934 * include/bits/locale_classes.h (operator!=): Likewise.
935 * include/bits/std_function.h (operator==(nullptr_t, const function&))
936 (operator!=(const function&, nullptr_t))
937 (operator!=(nullptr_t, const function&)): Likewise.
938 * include/ext/bitmap_allocator.h (operator!=): Likewise.
939 * include/ext/debug_allocator.h (operator!=): Likewise.
940 * include/ext/extptr_allocator.h (operator!=): Likewise.
941 * include/ext/malloc_allocator.h (operator!=): Likewise.
942 * include/ext/mt_allocator.h (operator!=): Likewise.
943 * include/ext/new_allocator.h (operator!=): Likewise.
944 * include/ext/pool_allocator.h (operator!=): Likewise.
945 * include/ext/throw_allocator.h (operator!=): Likewise.
946 * include/std/bitset (bitset::operator!=): Likewise.
947 * include/std/memory_resource (operator!=): Likewise.
948 * include/std/scoped_allocator (operator!=): Likewise.
950 * include/std/typeindex (operator<=>): Define for C++20.
951 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
953 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
955 * libsupc++/compare (compare_three_way): Fix constraint so that
956 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
957 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
961 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
962 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
963 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
964 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
965 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
966 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
970 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
971 * testsuite/18_support/comparisons/categories/94565.cc: New test.
973 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
975 * include/std/coroutine: Update coroutines builtin define,
978 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
980 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
981 (strong_order, weak_order, partial_order): Replace uses of <=> with
982 compare_three_way function object (LWG 3324).
983 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
984 equality operator so that X satisfies three_way_comparable.
985 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
987 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
989 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
990 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
991 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
992 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
993 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
995 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
997 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
999 * include/std/complex (operator==(const T&, const complex<T>&))
1000 (operator!=(const complex<T>&, const complex<T>&))
1001 (operator!=(const complex<T>&, const T&))
1002 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
1003 * testsuite/26_numerics/slice/compare.cc: New test.
1005 * include/std/charconv (to_chars_result, from_chars_result): Add
1006 defaulted equality comparisons for C++20.
1007 * testsuite/20_util/from_chars/compare.cc: New test.
1008 * testsuite/20_util/to_chars/compare.cc: New test.
1010 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
1013 * include/std/charconv (__integer_to_chars_result_type)
1014 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
1016 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
1017 use of std::string_view with std::string.
1018 * testsuite/20_util/from_chars/2.cc: Likewise.
1019 * testsuite/20_util/to_chars/1.cc: Likewise.
1020 * testsuite/20_util/to_chars/2.cc: Likewise.
1022 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
1025 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
1026 usable in constant expressions for C++20.
1027 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
1028 _GLIBCXX20_CONSTEXPR.
1029 (std::char_traits<char>, std::char_traits<wchar_t>)
1030 (std::char_traits<char8_t>): Make move, copy and assign usable in
1031 constant expressions for C++20.
1032 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
1033 and copy usable in constant expressions for C++20.
1034 * include/std/string_view (basic_string_view::copy): Add
1035 _GLIBCXX20_CONSTEXPR.
1036 * testsuite/21_strings/basic_string_view/operations/copy/char/
1037 constexpr.cc: New test.
1038 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
1039 constexpr.cc: New test.
1041 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
1043 * doc/xml/manual/appendix_contributing.xml: Refer to Git
1044 documentation instead of Subversion. Switch to https.
1045 * doc/html/manual/appendix_contributing.html: Regenerate.
1047 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
1050 * include/bits/ptr_traits.h (__to_address): Add special case for debug
1051 iterators, to avoid dereferenceable check.
1052 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
1053 * testsuite/20_util/to_address/debug.cc: New test.
1055 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
1057 * testsuite/experimental/net/execution_context/use_service.cc:
1058 Require pthread and gthreads.
1060 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
1062 * doc/xml/manual/appendix_free.xml: Move "free books" list from
1064 * doc/html/manual/appendix_free.html: Regenerate.
1066 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
1068 Library-side tests for parenthesized aggregate init
1073 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
1074 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1075 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1076 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1077 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
1078 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1079 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1080 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
1081 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1083 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
1084 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1085 * testsuite/20_util/variant/92878_92947.cc: Likewise.
1086 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1088 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1090 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1092 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1094 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1096 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1098 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
1099 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1100 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1102 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1103 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1105 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1107 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1109 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1111 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1114 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
1116 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
1117 for changes due to parenthesized aggregate-initialization in C++20.
1118 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
1119 with std::chrono::sys_time in C++20.
1121 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
1122 to constrain C++20 versions of comparison operators. Fix backwards
1123 logic of relational operators.
1124 (move_iterator): Use requires-clause to constrain comparison operators
1125 in C++20. Do not declare non-standard same-type overloads for C++20.
1126 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
1127 of comparisons and check using greedy_ops type.
1128 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
1129 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
1130 main function from compile-only test.
1131 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
1133 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
1135 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
1136 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
1137 C++20 concepts are required.
1138 * include/bits/stl_iterator_base_types.h: Likewise.
1139 * include/std/concepts: Likewise.
1140 * include/std/version: Likewise.
1141 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
1144 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
1145 (reverse_iterator::iterator_category): Define for C++20.
1146 (reverse_iterator): Define comparison operators correctly for C++20.
1147 (__normal_iterator): Add constraints to comparison operators for C++20.
1148 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
1149 overload for input iterators.
1150 (move_iterator): Add constraints to comparison operators for C++20.
1151 Define operator<=> for C++20.
1152 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
1153 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
1154 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
1155 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
1157 * include/bits/iterator_concepts.h (__detail::__decay_copy)
1158 (__detail::__member_begin, __detail::__adl_begin): Move here from
1159 <bits/range_access.h>.
1160 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
1161 * bits/range_access.h (__cust_access::__decay_copy)
1162 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
1163 <bits/iterator_concepts.h>.
1164 (ranges::iterator_t): Use __detail::__range_iter_t.
1165 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
1166 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
1167 (front_insert_iterator): Likewise.
1168 (insert_iterator): Implement changes from P0896R4 for C++20.
1169 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
1170 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
1171 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
1172 for inclusion in synopsis_c++20.cc which expects different signatures
1173 for some function templates.
1174 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
1176 * include/std/type_traits (__is_array_convertible): Move definition
1177 to immediately after is_convertible.
1179 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
1181 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
1182 (chrono::months, chrono::sys_days, chrono::local_t)
1183 (chrono::local_time, chrono::local_seconds, chrono::local_days):
1185 (chrono::time_point): Add missing static assert.
1186 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
1187 * testsuite/std/time/clock/file/overview.cc: New test.
1188 * testsuite/std/time/clock/file/members.cc: New test.
1189 * testsuite/std/time/syn_c++20.cc: New test.
1191 2020-03-25 Mike Crowe <mac@mcrowe.com>
1193 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
1195 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
1198 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
1200 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
1201 * include/std/chrono (filesystem::__file_clock): Here.
1202 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
1203 Define public member functions for C++20.
1204 (is_clock, is_clock_v): Define traits for C++20.
1205 * include/std/condition_variable (condition_variable::wait_until): Add
1206 check for valid clock.
1207 * include/std/future (_State_baseV2::wait_until): Likewise.
1208 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
1209 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
1211 * include/std/thread (this_thread::sleep_until): Likewise.
1212 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
1213 slow_clock with new namespace.
1214 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
1216 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1218 * testsuite/30_threads/future/members/clock_neg.cc: New test.
1219 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
1220 Qualify slow_clock with new namespace.
1221 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
1222 clock_neg.cc: New test.
1223 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
1225 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
1226 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1228 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
1229 slow_clock with new namespace.
1230 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
1231 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
1233 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
1234 * testsuite/std/time/traits/is_clock.cc: New test.
1235 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
1238 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
1241 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
1242 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
1243 Improve test coverage.
1246 * include/bits/fs_path.h (path::_S_str_convert): Replace first
1247 parameter with basic_string_view so that strings with different
1248 allocators can be accepted.
1249 (path::generic_string<C,T,A>()): Use basic_string object that uses the
1250 right allocator type.
1251 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
1252 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
1255 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
1258 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
1259 (__is_nt_default_constructible_impl): Remove.
1260 (__is_nothrow_default_constructible_impl): Remove.
1261 (__is_nt_constructible_impl): Add bool template parameter. Adjust
1262 partial specializations.
1263 (__is_nothrow_constructible_impl): Replace class template with alias
1265 (is_nothrow_default_constructible): Derive from alias template
1266 __is_nothrow_constructible_impl instead of
1267 __is_nothrow_default_constructible_impl.
1268 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
1270 * include/std/stop_token (stop_token::_Stop_state_ref): Define
1271 comparison operators explicitly if the compiler won't synthesize them.
1273 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
1274 __cpp_lib_concepts before using iter_reference_t.
1275 * include/bits/stream_iterator.h (istream_iterator): Check
1276 __cpp_lib_concepts before using default_sentinel_t.
1277 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
1280 * include/experimental/executor (executor::executor(Executor)): Call
1281 make_shared directly instead of _M_create. Create _Tgt1 object.
1282 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
1283 Call allocate_shared directly instead of _M_create. Create _Tgt2
1285 (executor::target_type): Add cast needed for new _Tgt interface.
1286 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
1287 (executor::_Tgt): Define the same interface whether RTTI is enabled or
1289 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
1290 std::type_info in the interface.
1291 (executor::_Tgt::_M_func): Add data member.
1292 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
1293 (executor::_Tgt1::_S_func): Define function to access target without
1295 (executor::_M_create): Remove.
1296 (operator==, operator!=): Simplify comparisons for executor.
1297 * include/experimental/socket (is_error_code_enum<socket_errc>):
1298 Define specialization before use.
1299 * testsuite/experimental/net/executor/1.cc: New test.
1301 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
1304 * include/experimental/executor (service_already_exists): Add default
1305 constructor. Declare make_service to be a friend.
1306 * testsuite/experimental/net/execution_context/make_service.cc: New
1309 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
1311 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
1312 a null pointer to functions with nonnull(1) attribute.
1314 2020-03-11 Patrick Palka <ppalka@redhat.com>
1316 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
1317 'address' -> 'std::__addressof'.
1318 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
1319 a non-forward input_range.
1320 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
1321 default constructor protected instead of deleted, like with
1322 input_iterator_wrapper.
1323 (test_range::iterator): Add comment explaining that this type is used
1324 only when the underlying wrapper is input_iterator_wrapper or
1325 output_iterator_wrapper. Remove delegating defaulted constructor so
1326 that the inherited default constructor is used instead.
1328 LWG 3286 ranges::size is not required to be valid after a call to
1329 ranges::begin on an input range
1330 * include/std/ranges (subrange::subrange): Split single-argument
1331 constructor into two, one constrained by _S_store_size and another by
1333 (take_view::begin): Call size() before calling ranges::begin(_M_base).
1334 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
1335 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
1337 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
1339 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
1340 instead of _M_current.
1341 (split_view::_OuterIter::operator++): Likewise.
1343 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
1344 (transform_view::_Iterator::operator*): Add noexcept-specifier.
1345 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
1346 (split_view::_OuterIter::__current): Add noexcept.
1347 (split_view::_InnerIter::__iter_swap): Remove.
1348 (split_view::_InnerIter::__iter_move): Remove.
1349 (split_view::_InnerIter::_M_i_current): New accessors.
1350 (split_view::_InnerIter::__at_end): Use _M_i_current().
1351 (split_view::_InnerIter::operator*): Likewise.
1352 (split_view::_InnerIter::operator++): Likewise.
1353 (iter_move(const _InnerIter&)): Likewise.
1354 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
1355 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
1356 for iter_move and iter_swap on split_view's inner iterator.
1359 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
1360 Change expression in noexcept-specifier to match function body.
1362 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
1363 comment explaining multiple dg-do directives.
1364 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
1365 so test is run as well as compiled.
1367 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
1370 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
1371 handle concatenations that change the type of the first component.
1372 (path::operator+=(basic_string_view<value_type>)): Likewise.
1373 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
1375 2020-03-06 Patrick Palka <ppalka@redhat.com>
1377 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
1378 join_view::_Sentinel<!_Const>.
1379 * testsuite/std/ranges/adaptors/join.cc: Augment test.
1382 * include/bits/range_access.h (__cust_access::_Empty::operator()):
1383 Declare return type to be bool instead of auto.
1384 * testsuite/std/ranges/adaptors/93978.cc: New test.
1386 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
1389 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
1390 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
1391 second argument to __glibcxx_rwlock_init.
1392 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
1395 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
1396 test to not fail due to PR 94063.
1397 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
1398 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
1400 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
1402 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
1405 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
1407 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
1408 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
1409 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1410 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
1411 for return value, and in comparison.
1412 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
1415 * include/std/string_view: Include <bits/ostream_insert.h>.
1416 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
1418 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
1420 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
1422 2020-03-04 Patrick Palka <ppalka@redhat.com>
1425 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
1426 condition for when to use memset, making sure to additionally check that
1427 the output pointer's value type is a non-volatile byte type. Instead of
1428 requiring that the fill type is a byte type, just require that it's an
1430 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1432 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1434 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
1435 blocked by PR 94017.
1436 * testsuite/25_algorithms/fill/94017.cc: New test.
1437 * testsuite/25_algorithms/fill_n/94017.cc: New test.
1439 LWG 3355 The memory algorithms should support move-only input iterators
1441 * include/bits/ranges_uninitialized.h
1442 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
1443 to copy __ifirst, which could be a move-only input iterator. Use
1444 operator- instead of ranges::distance to compute distance from a sized
1446 (__uninitialized_copy_n_fn::operator()): Likewise.
1447 (__uninitialized_move_fn::operator()): Likewise.
1448 (__uninitialized_move_n_fn::operator()): Likewise.
1449 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
1450 attempting to copy __first.
1451 (__uninitialized_destroy_n_fn::operator()): Likewise.
1452 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1454 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
1456 * .../specialized_algorithms/uninitialized_move/constrained.cc:
1459 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
1460 protected instead of private.
1461 (test_sized_range_sized_sent): New.
1463 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
1464 New testsuite iterator.
1465 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
1466 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1468 * include/bits/ranges_uninitialized.h
1469 (uninitialized_copy_fn::operator()): Pass a reference type as the first
1470 argument to is_nothrow_assignable_v.
1471 (uninitialized_copy_fn::operator()): Likewise.
1472 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
1473 with the input iterator stripped of its move_iterator.
1474 (uninitialized_move_n_fn::operator()): Likewise.
1475 (uninitialized_fill_fn::operator()): Pass a reference type as the first
1476 argument to is_nothrow_assignable_v.
1477 (uninitialized_fill_n_fn::operator()): Likewise.
1479 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
1482 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
1483 traits to control when to use memmove and memcmp optimizations.
1484 (__is_nonvolatile_trivially_copyable): New helper trait.
1485 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
1486 use memcmp optimization with volatile data.
1487 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
1488 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
1489 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
1490 (__copy_move_backward_a2): Likewise.
1491 (__equal_aux1): Use __memcmpable.
1492 (__lexicographical_compare_aux): Do not use memcmp optimization with
1494 * testsuite/25_algorithms/copy/94013.cc: New test.
1495 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
1496 * testsuite/25_algorithms/equal/94013.cc: New test.
1497 * testsuite/25_algorithms/fill/94013.cc: New test.
1498 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
1499 * testsuite/25_algorithms/move/94013.cc: New test.
1500 * testsuite/25_algorithms/move_backward/94013.cc: New test.
1502 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
1503 Avoid redundant iterator comparisons (LWG 3410).
1505 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
1508 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
1510 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
1512 * include/std/ranges (__detail::__maybe_empty_t): Rename to
1514 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
1516 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
1519 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
1521 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1523 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1525 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
1526 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1527 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1528 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1529 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1531 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1532 Add libatomic option.
1533 * testsuite/30_threads/jthread/jthread.cc: Likewise.
1535 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
1537 * include/bits/stl_algo.h
1538 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
1539 * include/bits/stl_algobase.h: ...here.
1540 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
1542 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1544 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
1546 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1548 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
1549 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
1550 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
1551 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1552 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
1553 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1554 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1558 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1560 2020-02-28 Patrick Palka <ppalka@redhat.com>
1563 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1564 Fix condition for when to use memcmp, making it consistent with the
1565 corresponding condition used in std::lexicographical_compare.
1566 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
1568 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
1569 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
1570 existing signatures for C++2a.
1572 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1574 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
1575 test instead of just compiling it.
1577 2020-02-28 Patrick Palka <ppalka@redhat.com>
1579 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
1580 whenever the underlying range models common_range.
1582 * include/std/ranges (__detail::_CachedPosition): New struct.
1583 (views::filter_view::_S_needs_cached_begin): New member variable.
1584 (views::filter_view::_M_cached_begin): New member variable.
1585 (views::filter_view::begin): Use _M_cached_begin to cache its
1587 (views::drop_view::_S_needs_cached_begin): New static member variable.
1588 (views::drop_view::_M_cached_begin): New member variable.
1589 (views::drop_view::begin): Use _M_cached_begin to cache its result
1590 when _S_needs_cached_begin.
1591 (views::drop_while_view::_M_cached_begin): New member variable.
1592 (views::drop_while_view::begin): Use _M_cached_begin to cache its
1594 (views::reverse_view::_S_needs_cached_begin): New static member
1596 (views::reverse_view::_M_cached_begin): New member variable.
1597 (views::reverse_view::begin): Use _M_cached_begin to cache its result
1598 when _S_needs_cached_begin.
1599 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
1600 drop_view::begin caches its result.
1601 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
1602 that drop_while_view::begin caches its result.
1603 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
1604 filter_view::begin caches its result.
1605 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1606 reverse_view::begin caches its result.
1608 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1610 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1611 filesystems that silently truncate timestamps.
1612 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1615 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1616 -Wstringop-overflow warnings.
1618 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1620 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1621 -fdiagnostics-urls=never to options.
1623 2020-02-27 Patrick Palka <ppalka@redhat.com>
1625 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
1627 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
1628 (take_view::_Sentinel<_Const>): Likewise.
1629 (take_while_view::_Sentinel<_Const>): Likewise.
1630 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
1631 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1632 * testsuite/std/ranges/adaptors/take.cc: Augment test.
1633 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
1634 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1636 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
1637 base() of a vector<>::iterator is a pointer.
1638 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
1639 * testsuite/25_algorithms/move/constrained.cc: Likewise.
1640 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
1641 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
1643 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1644 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
1645 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1646 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1647 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1649 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1651 * include/debug/array (operator<=>): Define for C++20.
1652 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
1653 Adjust dg-error line numbers.
1654 * testsuite/23_containers/array/tuple_interface/
1655 tuple_element_debug_neg.cc: Likewise.
1657 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
1658 defining _GLIBCXX_ASSERTIONS.
1659 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1660 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1661 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1662 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1663 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1664 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1665 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
1666 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
1667 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
1668 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
1669 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
1670 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1672 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
1673 C++98 where the member function of the base class returns void.
1675 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
1676 equality comparisons that support value-initialized iterators.
1678 * include/bits/boost_concept_check.h (__function_requires): Add
1679 _GLIBCXX14_CONSTEXPR.
1680 * testsuite/25_algorithms/min/concept_checks.cc: New test.
1682 2020-02-26 Patrick Palka <ppalka@redhat.com>
1685 * include/std/ranges (split_view::_InnerIter::operator==): Compare
1686 the operands' _M_i rather than their _M_i.current().
1687 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1689 P1645R1 constexpr for <numeric> algorithms
1690 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
1691 partial_sum, adjacent_difference): Make conditionally constexpr for
1693 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
1695 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
1696 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
1697 constexpr for C++20.
1698 * include/std/version (__cpp_lib_constexpr_numeric): Define.
1699 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
1700 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
1701 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1702 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1703 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1704 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1705 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1706 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1707 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
1708 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
1709 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1711 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
1713 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
1714 variables in smaller scope and avoid calling ranges::distance when we
1715 know they are pointers. Remove statically-unreachable use of
1716 __builtin_unreachable().
1717 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
1720 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
1722 (__detail::__maybe_const_t): Likewise.
1723 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
1724 (transform_view, take_view, take_while_view, elements_view): Use
1726 (join_view, split_view): Use both.
1728 2020-02-25 Patrick Palka <ppalka@redhat.com>
1730 LWG 3397 basic_istream_view::iterator should not provide
1732 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
1734 (basic_istream_view:_Iterator::iterator_concept): ... this.
1735 * testsuite/std/ranges/istream_view.cc: Augment test.
1737 LWG 3325 Constrain return type of transformation function for
1739 * include/std/ranges (transform_view): Constrain the return type of the
1740 transformation function as per LWG 3325.
1741 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
1743 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
1744 * include/std/ranges (join_view::_Iterator::operator--): Require that
1745 range_reference_t<_Base> models common_range.
1746 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
1748 LWG 3301 transform_view::_Iterator has incorrect iterator_category
1749 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
1750 determination of iterator_category as per LWG 3301.
1751 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1753 LWG 3292 iota_view is under-constrained
1754 * include/std/ranges (iota_view): Require that _Winc models semiregular
1756 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
1758 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
1760 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
1761 during constant evaluation. Call __builtin_memmove directly instead of
1763 (__copy_or_move_backward): Likewise.
1764 * include/bits/stl_algobase.h (__memmove): Remove.
1765 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
1766 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
1767 Use __builtin_memmove directly instead of __memmove.
1768 (__copy_move_a2): Do not use memmove during constant evaluation.
1769 (__copy_move_backward_a2): Use _IsMove constant to select correct
1770 __copy_move_backward specialization.
1771 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
1772 begin turned into moves during constant evaluation.
1774 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
1778 * include/bits/stl_algobase.h (__memmove): Cast away const before
1779 doing move assignment.
1780 * testsuite/25_algorithms/move/93872.cc: New test.
1781 * testsuite/25_algorithms/move_backward/93872.cc: New test.
1783 2020-02-24 Patrick Palka <ppalka@redhat.com>
1786 * include/bits/ranges_algobase.h (__copy_or_move,
1787 __copy_or_move_backward): Don't inspect the iter_value_t of the output
1788 iterator, instead inspect its iterator_traits directly.
1789 * include/bits/stl_iterator.h (back_insert_iterator::container):
1790 Conditionally initialize.
1791 (back_insert_iterator::difference_type): Conditionally define.
1792 (back_insert_iterator::back_insert_iterator): Conditionally define this
1793 default constructor.
1794 (front_insert_iterator::container): Conditionally initialize.
1795 (front_insert_iterator::difference_type): Conditionally define.
1796 (front_insert_iterator::front_insert_iterator): Conditionally define
1797 this default constructor.
1798 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
1799 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
1801 P0769R2 Add shift to <algorithm>
1802 * include/bits/ranges_algo.h (shift_left, shift_right): New.
1803 * testsuite/25_algorithms/shift_left/1.cc: New test.
1804 * testsuite/25_algorithms/shift_right/1.cc: New test.
1806 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
1808 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1809 Make noexcept-specifier conditional.
1810 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
1813 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1815 (operator==(istream_iterator, default_sentinel_t)): Add operator.
1816 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
1817 * include/bits/streambuf_iterator.h
1818 (istreambuf_iterator(default_sentinel_t)): Add constructor.
1819 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
1820 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1822 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
1823 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1825 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1827 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
1828 (ranges::enable_view): Simplify (LWG 3326).
1829 * include/bits/range_access.h (ranges::enable_view): Declare.
1830 * include/bits/regex.h (__enable_view_impl): Remove partial
1832 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
1833 * include/bits/stl_set.h (__enable_view_impl): Likewise.
1834 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
1835 * include/debug/multiset.h (__enable_view_impl): Likewise.
1836 * include/debug/set.h (__enable_view_impl): Likewise.
1837 * include/debug/unordered_set (__enable_view_impl): Likewise.
1838 * include/experimental/string_view (ranges::enable_view): Define
1839 partial specialization.
1840 * include/std/span (ranges::enable_view): Likewise.
1841 * include/std/string_view (ranges::enable_view): Likewise.
1842 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
1844 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
1846 * include/std/optional (operator<=>(optional<T>, optional<U>))
1847 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
1849 * include/std/tuple (__tuple_cmp): New helper function for <=>.
1850 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
1851 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
1852 (operator<=>(monostate, monostate)): Define for C++20.
1853 * testsuite/20_util/optional/relops/three_way.cc: New test.
1854 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
1855 * testsuite/20_util/variant/89851.cc: Move to ...
1856 * testsuite/20_util/variant/relops/89851.cc: ... here.
1857 * testsuite/20_util/variant/90008.cc: Move to ...
1858 * testsuite/20_util/variant/relops/90008.cc: ... here.
1859 * testsuite/20_util/variant/relops/three_way.cc: New test.
1861 2020-02-20 Patrick Palka <ppalka@redhat.com>
1863 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
1865 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
1866 __maybe_refwrap to capture lvalue references by reference, and then use
1867 unwrap_reference_t to forward the by-reference captures as references.
1868 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1869 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
1871 * include/std/ranges (iota_view): Forward declare _Sentinel.
1872 (iota_view::_Iterator): Befriend _Sentinel.
1873 (iota_view::_Sentinel::_M_equal): New member function.
1874 (iota_view::_Sentinel::operator==): Use it.
1875 (views::_Iota::operator()): Forward __f using the correct type.
1876 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
1877 with integers of different signedness, to appease iota_view's deduction
1879 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
1881 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
1883 * include/bits/range_access.h (ranges::begin): Reject array of
1885 (ranges::end, ranges::size): Require arrays to be bounded.
1886 (ranges::data): Require lvalue or borrowed_range.
1887 (ranges::iterator_t): Remove constraint.
1888 * testsuite/std/ranges/access/begin.cc: Do not check array of
1890 * testsuite/std/ranges/access/begin_neg.cc: New test.
1891 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
1892 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
1893 * testsuite/std/ranges/access/ssize.cc: Do not check array of
1896 * include/std/system_error (error_category::operator<=>)
1897 (operator<=>(const error_code&, const error_code&))
1898 (operator<=>(const error_condition&, const error_condition&)): Define
1900 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
1901 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
1903 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
1905 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
1906 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
1908 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
1909 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
1911 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
1912 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
1913 Remove incorrect comment.
1914 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
1917 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
1919 * include/std/thread (thread::id::operator<=>): Define for C++20.
1920 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
1921 functions in namespace std.
1922 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
1924 2020-02-19 Patrick Palka <ppalka@redhat.com>
1926 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
1927 null terminator of the underlying string as part of the test_range.
1928 (main): Call test03.
1930 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
1932 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
1933 requirement (LWG 3385).
1934 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
1935 expected declaration.
1937 * include/std/ranges (take_while_view, drop_view, drop_while_view)
1938 (elements_view:_Iterator): Initialize data members (LWG 3364).
1940 * libsupc++/compare (three_way_comparable): Remove always-false check
1941 that should have been removed with weak_equality (P1959R0).
1942 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
1944 * include/std/concepts (__detail::__partially_ordered_with): Move here
1946 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
1947 to simplify definition (LWG 3331).
1948 * libsupc++/compare (__detail::__partially_ordered_with): Move to
1951 * include/std/concepts (totally_ordered_with): Remove redundant
1952 requirement (LWG 3329).
1954 * include/std/ranges (__detail::__convertible_to_non_slicing): New
1956 (__detail::__pair_like_convertible_to): Remove.
1957 (__detail::__pair_like_convertible_from): Add requirements for
1958 non-slicing conversions.
1959 (subrange): Constrain constructors with __convertible_to_non_slicing.
1960 Remove constructors from pair-like types. Add new deduction guide.
1961 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
1963 * include/bits/iterator_concepts.h (iter_move): Add declaration to
1964 prevent unqualified lookup finding a suitable declaration (LWG 3247).
1966 * include/std/memory_resource (polymorphic_allocator::allocate)
1967 (polymorphic_allocator::allocate_object): Change type of exception to
1968 bad_array_new_length (LWG 3237).
1969 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
1971 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
1972 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
1973 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
1974 * testsuite/20_util/unwrap_reference/3.cc: New test.
1976 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
1977 type during overload resolution, use static assert instead (LWG 3200).
1978 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
1980 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
1982 * include/std/span (span(T (&)[N])): Use non-deduced context to
1983 prevent first parameter from interfering with class template argument
1984 deduction (LWG 3369).
1985 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
1986 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
1989 * include/std/span (span::const_iterator, span::const_reverse_iterator)
1990 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
1992 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
1994 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1996 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
1997 constrained.cc: Likewise.
1998 * testsuite/20_util/specialized_algorithms/
1999 uninitialized_default_construct/constrained.cc: Likewise.
2000 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
2001 constrained.cc: Likewise.
2002 * testsuite/20_util/specialized_algorithms/uninitialized_move/
2003 constrained.cc: Likewise.
2004 * testsuite/20_util/specialized_algorithms/
2005 uninitialized_value_construct/constrained.cc: Likewise.
2007 * include/bits/range_access.h (range_size_t): Define alias template.
2008 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
2009 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
2011 * include/std/ranges (filter_view, transform_view, take_view)
2012 (join_view, split_view, reverse_view): Remove commented-out converting
2013 constructors (LWG 3280).
2015 * include/std/memory (uninitialized_construct_using_allocator): Use
2016 std::construct_at (LWG 3321).
2018 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
2019 (polymorphic_allocator::allocate_object)
2020 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
2022 LWG 3379. "safe" in several library names is misleading
2023 * include/bits/range_access.h (enable_safe_range): Rename to
2024 enable_borrowed_range.
2025 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
2026 (safe_range): Rename to borrowed_range.
2027 * include/bits/ranges_algo.h: Adjust to use new names.
2028 * include/bits/ranges_algobase.h: Likewise.
2029 * include/bits/ranges_uninitialized.h: Likewise.
2030 * include/std/ranges: Likewise.
2031 (safe_iterator_t): Rename to borrowed_iterator_t.
2032 (safe_subrange_t): Rename to borrowed_subrange_t.
2033 * include/std/span: Adjust to use new names.
2034 * include/std/string_view: Likewise.
2035 * include/experimental/string_view: Likewise.
2036 * testsuite/std/ranges/access/begin.cc: Likewise.
2037 * testsuite/std/ranges/access/cbegin.cc: Likewise.
2038 * testsuite/std/ranges/access/cdata.cc: Likewise.
2039 * testsuite/std/ranges/access/cend.cc: Likewise.
2040 * testsuite/std/ranges/access/crbegin.cc: Likewise.
2041 * testsuite/std/ranges/access/crend.cc: Likewise.
2042 * testsuite/std/ranges/access/data.cc: Likewise.
2043 * testsuite/std/ranges/access/end.cc: Likewise.
2044 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2045 * testsuite/std/ranges/access/rend.cc: Likewise.
2046 * testsuite/std/ranges/safe_range.cc: Likewise.
2047 * testsuite/std/ranges/safe_range_types.cc: Likewise.
2048 * testsuite/util/testsuite_iterators.h: Likewise.
2050 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
2051 (tuple_element<1, const subrange<I, S, K>>): Add partial
2052 specializations (LWG 3398).
2053 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
2055 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2056 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
2057 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
2059 2020-02-18 Patrick Palka <ppalka@redhat.com>
2061 P1983R0 Wording for GB301, US296, US292, US291, and US283
2062 * include/std/ranges (filter_view::pred): New member function.
2063 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
2064 P1983R0 fixes the highlighted issue in the same way.
2065 (join_view::_Iterator<_Const>): Add friend
2066 join_view::_Iterator<!_Const>.
2067 (join_view::_M_inner): Remove mutable specifier, effectively reverting
2068 the proposed wording changes of P3278.
2069 (join_view::begin): Refine the condition for when to return a const
2071 (split_view::_OuterIter::_OuterIter): Adjust constraints.
2072 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
2075 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
2078 * include/std/ranges (_RangeAdaptor): Add deduction guide.
2079 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
2081 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
2082 (transform_view::_Iterator): Add alias _Base_iter and use in place of
2084 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
2085 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
2086 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
2087 (split_view::_InnerIter::_S_iter_cat()): Likewise.
2089 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
2090 assumption that long is wider than int.
2091 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
2092 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
2093 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
2094 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
2096 P1976R2 Fixed-size span construction from dynamic range
2097 * include/std/span (__cpp_lib_span): Update value.
2098 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
2100 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
2102 (span::first<Count>(), span::last<Count>()): Use explicit type in
2104 (as_bytes, as_writable_bytes): Likewise.
2105 * include/std/version (__cpp_lib_span): Update value.
2106 * testsuite/23_containers/span/1.cc: Check new value.
2107 * testsuite/23_containers/span/2.cc: Check new value.
2108 * testsuite/23_containers/span/explicit.cc: New test.
2110 * include/std/span (span::__is_compatible_array): Simplify alias
2111 template by using requires-clause.
2112 (span::__is_compatible_ref): New alias template for constraining
2114 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
2115 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
2116 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
2117 redundant parentheses.
2118 (span(R&&)): Add missing constraints.
2120 * include/std/span (span): Reorder members and rename template
2121 parameters to match declarations in the C++2a working paper.
2123 P2116R0 Remove tuple-like protocol support from fixed-extent span
2124 * include/std/span (get, tuple_size, tuple_element): Remove.
2125 * testsuite/23_containers/span/everything.cc: Remove checks for
2127 * testsuite/23_containers/span/get_neg.cc: Remove.
2128 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
2129 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
2130 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
2132 2020-02-17 Patrick Palka <ppalka@redhat.com>
2134 P2106R0 Alternative wording for GB315 and GB316
2135 * include/bits/ranges_algo.h (in_fun_result): New.
2136 (for_each_result, for_each_n_result): Change into an alias of
2138 (in_in_result): New.
2139 (mismatch_result): Change into an alias of in_in_result.
2140 (copy_if_result): Change into an alias of in_out_result.
2141 (swap_ranges_result): Change into an alias of in_in_result.
2142 (unary_transform_result): Change into an alias of in_out_result.
2143 (in_in_out_result): New.
2144 (binary_transform_result): Change into an alias of in_in_out_result.
2145 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
2146 remove_copy_result, unique_copy_result, reverse_copy_result,
2147 rotate_copy_result, partial_sort_copy_result): Change into an alias of
2149 (in_out_out_result): New.
2150 (partition_copy_result, merge_result): Change into an alias of
2152 (set_union_result, set_intersection_result): Change into an alias of
2154 (set_difference_result): Change into an alias of in_out_result.
2155 (set_symmetric_difference): Change into an alias of in_in_out_result.
2156 (min_max_result): New.
2157 (minmax_result, minmax_element_result): Change into an alias of
2159 (in_found_result): New.
2160 (next_permutation_result, prev_permutation_result): Change into an alias
2162 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
2163 Adjust following changes to next_permutation_result and
2164 prev_permutation_result.
2165 * include/bits/ranges_algobase.h (in_out_result): New.
2166 (copy_result, move_result, move_backward_result, copy_backward_result,
2167 copy_n_result): Change into an alias of in_out_result.
2168 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
2169 uninitialized_copy_n_result, uninitialized_move_result,
2170 uninitialized_move_n_result): Likewise.
2171 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
2172 structured bindings.
2173 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
2175 P1243R4 Rangify new algorithms
2176 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
2177 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
2178 * testsuite/25_algorithms/clamp/constrained.cc: New test.
2179 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
2180 * testsuite/25_algorithms/sample/constrained.cc: New test.
2182 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
2184 P1964R2 Wording for boolean-testable
2185 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2186 (__adjacent_find_fn): Cast result of predicate to bool.
2187 * include/std/concepts (__boolean): Remove.
2188 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
2189 new helper concepts.
2190 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
2191 (predicate): Use __boolean_testable instead of boolean.
2192 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
2195 P1970R2 Consistency for size() functions: Add ranges::ssize
2196 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
2197 * testsuite/std/ranges/access/ssize.cc: New test.
2199 P1956R1 On the names of low-level bit manipulation functions
2200 * include/bits/hashtable_policy.h: Update comment.
2201 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
2202 (ispow2, ceil2, floor2, log2p1): Likewise.
2203 (__cpp_lib_int_pow2): Add feature test macro.
2204 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
2205 * include/std/memory (assume_aligned): Adjust use of ispow2.
2206 * include/std/version (__cpp_lib_int_pow2): Add.
2207 * libsupc++/new_opa.cc: Adjust use of __ispow2.
2208 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
2209 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
2210 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
2211 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
2212 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
2213 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
2214 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
2215 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
2216 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
2217 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
2218 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
2219 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
2221 * include/std/charconv: Add comment.
2223 PR libstdc++/92546 (partial)
2224 * include/bits/random.h (uniform_random_bit_generator): Move definition
2225 to <bits/uniform_int_dist.h>.
2226 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
2228 * include/bits/ranges_algobase.h: Do not include <cmath>.
2229 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
2231 * include/std/ranges: Do not include <limits>.
2232 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2234 PR libstdc++/92546 (partial)
2235 * include/Makefile.am: Add new header.
2236 * include/Makefile.in: Regenerate.
2237 * include/bits/int_limits.h: New header.
2238 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
2239 numeric_limits with __detail::__int_limits.
2240 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2241 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
2243 * include/std/charconv (__to_chars_8, __from_chars_binary)
2244 (__from_chars_alpha_to_num, from_chars): Likewise.
2245 * include/std/memory_resource (polymorphic_allocator::allocate)
2246 (polymorphic_allocator::allocate_object): Likewise.
2247 * include/std/string_view (basic_string_view::_S_compare): Likewise.
2248 * include/std/utility (in_range): Likewise.
2249 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
2250 extra error about incomplete type __int_limits<bool>.
2251 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
2252 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
2253 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
2254 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
2255 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
2256 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
2257 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
2258 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
2259 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
2260 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
2261 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
2262 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
2264 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
2265 value for partial_ordering::unordered.
2267 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
2268 const-qualified expression variations.
2269 * include/std/concepts (copyable): Likewise.
2271 * include/std/type_traits (__is_standard_integer): New helper trait.
2272 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
2273 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
2274 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
2275 * testsuite/20_util/integer_comparisons/1.cc: New test.
2276 * testsuite/20_util/integer_comparisons/2.cc: New test.
2277 * testsuite/20_util/integer_comparisons/equal.cc: New test.
2278 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
2279 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
2280 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
2281 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
2282 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
2283 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
2284 * testsuite/20_util/integer_comparisons/less.cc: New test.
2285 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
2286 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
2287 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
2288 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
2289 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
2291 2020-02-16 Patrick Palka <ppalka@redhat.com>
2293 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
2294 Move code after an early exit constexpr if to under an else branch.
2295 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
2297 2020-02-15 Patrick Palka <ppalka@redhat.com>
2299 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
2300 * include/bits/ranges_algobase.h: Likewise.
2301 * include/bits/ranges_uninitialized.h: Likewise.
2303 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
2304 binary_search, copy_if, count, count_if, equal_range, find, find_end,
2305 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
2306 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
2307 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
2308 lower_bound, make_heap, max, max_element, merge, min, min_element,
2309 minmax, minmax_element, mismatch, next_permutation, none_of,
2310 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
2311 partition_point, pop_heap, prev_permutation, push_heap, remove,
2312 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
2313 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
2314 search, search_n, set_difference, set_intersection,
2315 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
2316 stable_partition, stable_sort, swap_ranges, transform, unique,
2317 unique_copy, upper_bound): Convert into function objects.
2318 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
2319 fill, move_backward, copy_backward): Likewise.
2320 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
2321 uninitialized_default_construct_n, uninitialized_value_construct,
2322 uninitialized_value_construct_n, uninitialized_copy,
2323 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
2324 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
2325 destroy, destroy_n): Likewise.
2327 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
2328 (ranges::find_end): ... here.
2329 (ranges::__lexicographical_compare): Fold into ...
2330 (ranges::lexicographical_compare): ... here.
2331 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
2332 (ranges::equal): ... here.
2334 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2336 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
2337 * include/std/deque: Likewise.
2338 * include/std/forward_list: Likewise.
2339 * include/std/list: Likewise.
2340 * include/std/string: Likewise.
2341 * include/std/vector: Likewise.
2342 * include/std/version: Likewise.
2343 * testsuite/23_containers/deque/erasure.cc: Test for new value.
2344 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
2345 * testsuite/23_containers/list/erasure.cc: Likewise.
2346 * testsuite/23_containers/map/erasure.cc: Likewise.
2347 * testsuite/23_containers/set/erasure.cc: Likewise.
2348 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2349 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2350 * testsuite/23_containers/vector/erasure.cc: Likewise.
2352 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2354 * include/bits/random.h (uniform_random_bit_generator): Require min()
2355 and max() to be constant expressions and min() to be less than max().
2356 * testsuite/26_numerics/random/concept.cc: Check additional cases.
2357 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2359 2020-02-13 Patrick Palka <ppalka@redhat.com>
2361 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
2362 * include/Makefile.in: Regenerate.
2363 * include/bits/ranges_uninitialized.h: New header.
2364 * include/std/memory: Include it.
2365 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
2367 * .../uninitialized_copy/constrained.cc: New test.
2368 * .../uninitialized_default_construct/constrained.cc: New test.
2369 * .../uninitialized_fill/constrained.cc: New test.
2370 * .../uninitialized_move/constrained.cc: New test.
2371 * .../uninitialized_value_construct/constrained.cc: New test.
2373 * include/Makefile.am: Add bits/ranges_algobase.h
2374 * include/Makefile.in: Regenerate.
2375 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
2377 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
2378 __detail::__is_move_iterator, copy_result, move_result,
2379 __equal, equal, copy_result, move_result, move_backward_result,
2380 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
2381 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
2382 fill): Split out into ...
2383 * bits/range_algobase.h: ... this new header.
2385 2020-02-12 Patrick Palka <ppalka@redhat.com>
2387 LWG 3389 and LWG 3390
2388 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
2389 constructing the move_iterator with __i.
2390 (counted_iterator::counted_iterator): Use std::move when initializing
2392 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
2393 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
2395 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
2400 * configure: Regenerated.
2402 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
2404 * include/bits/hashtable.h
2405 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
2406 missing std namespace qualification to forward call.
2408 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
2410 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
2412 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
2414 * include/std/ranges: Fix non-ASCII characters in comment.
2416 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
2417 equality comparison to be valid and return bool.
2418 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
2419 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
2420 type with ambiguous conversion to fundamental types.
2421 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
2423 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2425 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
2427 (readable_traits): Rename to indirectly_readable_traits.
2428 (readable): Rename to indirectly_readable.
2429 (writable): Rename to indirectly_writable.
2430 (__detail::__iter_exchange_move): Do not use remove_reference_t.
2431 (indirectly_swappable): Adjust requires expression parameter types.
2433 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
2434 (ranges::replace_if, ranges::generate_n, ranges::generate)
2435 (ranges::remove): Use new name for writable.
2436 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
2437 Use new name for readable.
2438 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
2439 new name for readable_traits.
2440 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
2441 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
2442 new definition of indirectly_readable.
2444 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
2445 to take parameters of common_iterator, instead of the common_iterator
2446 type itself. Fix argument for __common_iter_has_arrow constraint.
2447 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
2449 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2451 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
2453 (basic_istream_view::_Iterator::operator++()): Add missing return.
2455 2020-02-07 Patrick Palka <ppalka@redhat.com>
2457 * include/bits/ranges_algo.h: Remove extraneous &&.
2459 * include/std/ranges (ranges::__detail::__stream_extractable,
2460 ranges::basic_istream_view, ranges::istream_view): Define.
2461 * testsuite/std/ranges/istream_view: New test.
2463 Implement C++20 range adaptors
2464 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
2465 (subrange::_S_store_size): Mark as const instead of constexpr to
2466 avoid what seems to be a bug in GCC.
2467 (__detail::__box): Give it defaulted copy and move constructors.
2468 (ranges::views::_Single::operator()): Mark constexpr.
2469 (ranges::views::_Iota::operator()): Mark constexpr.
2470 (__detail::Empty): Define.
2471 (ranges::views::__closure::_RangeAdaptor,
2472 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
2473 ranges::views::all, ranges::__detail::find_if,
2474 ranges::__detail::find_if_not, ranges::__detail::mismatch,
2475 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
2476 ranges::views::transform, take_view, ranges::views::take,
2477 take_while_view, ranges::views::take_while, drop_view,
2478 ranges::views::drop, join_view, ranges::views::join,
2479 __detail::require_constant, __detail::tiny_range, split_view,
2480 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
2481 common_view, ranges::views::common, reverse_view,
2482 ranges::views::reverse,
2483 ranges::views::__detail::__is_reversible_subrange,
2484 ranges::views::__detail::__is_reverse_view, reverse_view,
2485 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
2486 ranges::views::elements, ranges::views::keys, ranges::views::values):
2488 (views): Alias for ranges::views.
2489 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
2490 tuple_element<1, ranges::subrange>): New partial specializations.
2491 * testsuite/std/ranges/adaptors/all.cc: New test.
2492 * testsuite/std/ranges/adaptors/common.cc: Likewise.
2493 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2494 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2495 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2496 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2497 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2498 * testsuite/std/ranges/adaptors/join.cc: Likewise.
2499 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2500 * testsuite/std/ranges/adaptors/split.cc: Likewise.
2501 * testsuite/std/ranges/adaptors/take.cc: Likewise.
2502 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2503 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2505 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2507 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
2508 type of enumerations and comparison category types.
2509 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
2510 (__cmp_cat::_Ncmp::unordered): Change value to 2.
2511 (partial_ordering::_M_value, weak_ordering::_M_value)
2512 (strong_ordering::_M_value): Change type to __cmp_cat::type.
2513 (partial_ordering::_M_is_ordered): Remove data member.
2514 (partial_ordering): Use second bit of _M_value for unordered. Adjust
2515 comparison operators.
2516 (weak_ordering::operator partial_ordering): Simplify to remove
2518 (operator<=>(unspecified, weak_ordering)): Likewise.
2519 (strong_ordering::operator partial_ordering): Likewise.
2520 (strong_ordering::operator weak_ordering): Likewise.
2521 (operator<=>(unspecified, strong_ordering)): Likewise.
2522 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
2523 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
2524 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
2526 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
2527 __cpp_lib_three_way_comparison macro and use deduced return type for
2529 * testsuite/std/ranges/iota/iterator.cc: New test.
2531 2020-02-07 Patrick Palka <ppalka@redhat.com>
2532 Jonathan Wakely <jwakely@redhat.com>
2534 Implement C++20 constrained algorithms
2535 * include/Makefile.am: Add new header.
2536 * include/Makefile.in: Regenerate.
2537 * include/std/algorithm: Include <bits/ranges_algo.h>.
2538 * include/bits/ranges_algo.h: New file.
2539 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
2540 * testsuite/25_algorithms/all_of/constrained.cc: New test.
2541 * testsuite/25_algorithms/any_of/constrained.cc: New test.
2542 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
2543 * testsuite/25_algorithms/copy/constrained.cc: New test.
2544 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
2545 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
2546 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
2547 * testsuite/25_algorithms/count/constrained.cc: New test.
2548 * testsuite/25_algorithms/count_if/constrained.cc: New test.
2549 * testsuite/25_algorithms/equal/constrained.cc: New test.
2550 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
2551 * testsuite/25_algorithms/fill/constrained.cc: New test.
2552 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
2553 * testsuite/25_algorithms/find/constrained.cc: New test.
2554 * testsuite/25_algorithms/find_end/constrained.cc: New test.
2555 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
2556 * testsuite/25_algorithms/find_if/constrained.cc: New test.
2557 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
2558 * testsuite/25_algorithms/for_each/constrained.cc: New test.
2559 * testsuite/25_algorithms/generate/constrained.cc: New test.
2560 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
2561 * testsuite/25_algorithms/heap/constrained.cc: New test.
2562 * testsuite/25_algorithms/includes/constrained.cc: New test.
2563 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
2564 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
2565 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
2566 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
2567 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
2568 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
2570 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
2571 * testsuite/25_algorithms/max/constrained.cc: New test.
2572 * testsuite/25_algorithms/max_element/constrained.cc: New test.
2573 * testsuite/25_algorithms/merge/constrained.cc: New test.
2574 * testsuite/25_algorithms/min/constrained.cc: New test.
2575 * testsuite/25_algorithms/min_element/constrained.cc: New test.
2576 * testsuite/25_algorithms/minmax/constrained.cc: New test.
2577 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
2578 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
2579 * testsuite/25_algorithms/move/constrained.cc: New test.
2580 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
2581 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
2582 * testsuite/25_algorithms/none_of/constrained.cc: New test.
2583 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
2584 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
2585 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
2586 * testsuite/25_algorithms/partition/constrained.cc: New test.
2587 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
2588 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
2589 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
2590 * testsuite/25_algorithms/remove/constrained.cc: New test.
2591 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
2592 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
2593 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
2594 * testsuite/25_algorithms/replace/constrained.cc: New test.
2595 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
2596 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
2597 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
2598 * testsuite/25_algorithms/reverse/constrained.cc: New test.
2599 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
2600 * testsuite/25_algorithms/rotate/constrained.cc: New test.
2601 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
2602 * testsuite/25_algorithms/search/constrained.cc: New test.
2603 * testsuite/25_algorithms/search_n/constrained.cc: New test.
2604 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
2605 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2606 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2608 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2609 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2610 * testsuite/25_algorithms/sort/constrained.cc: New test.
2611 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2612 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2613 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2614 * testsuite/25_algorithms/transform/constrained.cc: New test.
2615 * testsuite/25_algorithms/unique/constrained.cc: New test.
2616 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2617 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2619 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2621 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
2622 number in comment. Fix indentation.
2624 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
2625 redundant _GLIBCXX20_CONSTEXPR.
2627 * include/std/ranges (viewable_range): Replace decay_t with
2628 remove_cvref_t (LWG 3375).
2630 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
2632 * include/bits/iterator_concepts.h (iter_reference_t)
2633 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
2634 Remove workarounds for PR c++/67704.
2635 * testsuite/24_iterators/aliases.cc: New test.
2637 2020-02-05 Patrick Palka <ppalka@redhat.com>
2639 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
2640 when initializing _M_current.
2641 (move_iterator::base): Split into two overloads differing in
2642 ref-qualifiers as in P1207R4 for C++20.
2644 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
2646 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
2650 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
2651 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
2652 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
2654 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
2656 * configure: Regenerate.
2658 2020-01-31 Patrick Palka <ppalka@redhat.com>
2660 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
2661 test_range::end() returns the same type as test_range::begin().
2662 * testsuite/24_iterators/range_operations/next.cc: Likewise.
2663 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
2664 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
2665 Always return a sentinel<I>.
2667 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
2670 * include/std/stop_token (stop_token::stop_possible()): Call new
2671 _M_stop_possible() function.
2672 (stop_token::stop_requested()): Do not use stop_possible().
2673 (stop_token::binary_semaphore): New class, as temporary stand-in for
2674 std::binary_semaphore.
2675 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
2676 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
2677 New data members for symchronization with stop_callback destruction.
2678 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
2679 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
2681 (stop_token::_Stop_cb::_M_run): New member function.
2682 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
2684 (stop_token::_Stop_state::_M_owners): New data member to track
2685 reference count for ownership.
2686 (stop_token::_Stop_state::_M_value): New data member combining a
2687 spinlock, the stop requested flag, and the reference count for
2688 associated stop_source objects.
2689 (stop_token::_Stop_state::_M_requester): New data member for
2690 synchronization with stop_callback destruction.
2691 (stop_token::_Stop_state::_M_stop_possible()): New member function.
2692 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
2694 (stop_token::_Stop_state::_M_add_owner)
2695 (stop_token::_Stop_state::_M_release_ownership)
2696 (stop_token::_Stop_state::_M_add_ssrc)
2697 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
2698 updating reference counts.
2699 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2700 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2701 (stop_token::_Stop_state::_M_try_lock)
2702 (stop_token::_Stop_state::_M_try_lock_and_stop)
2703 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
2705 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
2706 read and update state. Release lock while running callbacks. Use new
2707 data members to synchronize with callback destruction.
2708 (stop_token::_Stop_state::_M_remove_callback): Likewise.
2709 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
2710 to read and update state.
2711 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
2712 replacing shared_ptr.
2713 (stop_source::stop_source(const stop_source&)): Update reference count.
2714 (stop_source::operator=(const stop_source&)): Likewise.
2715 (stop_source::~stop_source()): Likewise.
2716 (stop_source::stop_source(stop_source&&)): Define as defaulted.
2717 (stop_source::operator=(stop_source&&)): Establish postcondition on
2719 (stop_callback): Enforce preconditions on template parameter. Replace
2720 base class with data member of new _Cb_impl type.
2721 (stop_callback::stop_callback(const stop_token&, Cb&&))
2722 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
2723 (stop_callback::_Cb_impl): New type wrapping _Callback member and
2724 defining the _S_execute member function.
2725 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
2727 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
2728 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
2729 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
2731 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
2733 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
2734 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
2735 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
2738 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
2739 three_way_comparable_with.
2740 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
2741 (compare_three_way::operator()): Remove redundant constraint from
2743 (__detail::_Synth3way::operator()): Use three_way_comparable_with
2744 instead of workaround.
2745 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
2746 output due to simplified constraints on compare_three_way::operator().
2749 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
2750 * testsuite/18_support/comparisons/object/93479.cc: New test.
2752 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
2753 returns the same type as test_range::begin(). Add comments.
2754 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2755 * testsuite/std/ranges/access/rend.cc: Likewise.
2756 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
2757 test_range is the same as its iterator type.
2758 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
2759 operator- overloads to satisfy sized_sentinel_for when the iterator
2760 satisfies random_access_iterator.
2762 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
2765 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
2766 static assertion to object types.
2769 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
2770 clock_gettime instead of explicit glibc version check.
2771 * configure: Regenerate.
2773 2020-01-28 Martin Liska <mliska@suse.cz>
2776 * include/std/atomic: Fix typo.
2777 * include/std/optional: Likewise.
2779 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
2781 * configure: Regenerate.
2783 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
2786 * include/std/span (span): Fix deduction guide.
2787 * testsuite/23_containers/span/deduction.cc: New test.
2789 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
2791 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
2792 (__cmp_cat::_Ord::equivalent): Add enumerator.
2793 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
2795 (partial_ordering, weak_ordering, strong_ordering): Remove
2796 constructors taking __cmp_cat::_Eq parameters. Use renamed
2799 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
2801 * acinclude.m4: Handle `--with-toolexeclibdir='.
2802 * Makefile.in: Regenerate.
2803 * aclocal.m4: Regenerate.
2804 * configure: Regenerate.
2805 * doc/Makefile.in: Regenerate.
2806 * include/Makefile.in: Regenerate.
2807 * libsupc++/Makefile.in: Regenerate.
2808 * po/Makefile.in: Regenerate.
2809 * python/Makefile.in: Regenerate.
2810 * src/Makefile.in: Regenerate.
2811 * src/c++11/Makefile.in: Regenerate.
2812 * src/c++17/Makefile.in: Regenerate.
2813 * src/c++98/Makefile.in: Regenerate.
2814 * src/filesystem/Makefile.in: Regenerate.
2815 * testsuite/Makefile.in: Regenerate.
2817 2020-01-23 Alexandre Oliva <oliva@adacore.com>
2819 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
2820 * configure: Rebuild.
2822 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
2824 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
2827 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
2829 * include/Makefile.in: Regenerate.
2831 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
2833 * doc/xml/faq.xml: Fix grammar.
2834 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
2835 * doc/xml/manual/spine.xml: Update copyright years.
2836 * doc/html/*: Regenerate.
2838 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
2840 * doc/xml/faq.xml: Update for SVN -> Git transition.
2841 * doc/xml/manual/appendix_contributing.xml: Likewise.
2842 * doc/xml/manual/status_cxx1998.xml: Likewise.
2843 * doc/xml/manual/status_cxx2011.xml: Likewise.
2844 * doc/xml/manual/status_cxx2014.xml: Likewise.
2845 * doc/xml/manual/status_cxx2017.xml: Likewise.
2846 * doc/xml/manual/status_cxx2020.xml: Likewise.
2847 * doc/xml/manual/status_cxxtr1.xml: Likewise.
2848 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
2850 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
2852 * include/Makefile.am: Add coroutine to the std set.
2853 * include/Makefile.in: Regenerated.
2854 * include/std/coroutine: New file.
2856 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
2859 * include/bits/c++config: Only do PSTL config when the header is
2860 present, to fix freestanding.
2861 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
2862 functions if they were detected by configure.
2864 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
2865 Matthew Bauer <mjbauer95@gmail.com>
2866 Jonathan Wakely <jwakely@redhat.com>
2868 PR bootstrap/64271 (partial)
2869 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
2871 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
2872 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
2873 definitions with NetBSD upstream.
2874 (ctype_base::blank): Use _CTYPE_BL.
2875 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
2877 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
2878 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
2879 parameters to unsigned char.
2880 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
2882 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
2885 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
2886 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
2887 (_Equality_base): Remove.
2888 (_Equality<>::_M_equal): Review implementation. Use
2889 std::is_permutation.
2890 * testsuite/23_containers/unordered_multiset/operators/1.cc
2891 (Hash, Equal, test02, test03): New.
2892 * testsuite/23_containers/unordered_set/operators/1.cc
2893 (Hash, Equal, test02, test03): New.
2895 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
2898 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
2899 Move here from <bits/range_access.h> and define using __int128 when
2901 (__is_integer_like, __is_signed_integer_like): Move here from
2902 <bits/range_access.h>.
2903 (weakly_incrementable): Use __is_signed_integer_like.
2904 * include/bits/range_access.h (__max_diff_type, __max_size_type)
2905 (__is_integer_like, __is_signed_integer_like): Move to
2906 <bits/iterator_concepts.h>.
2907 (__make_unsigned_like_t): Move here from <ranges>.
2908 * include/std/ranges (__make_unsigned_like_t): Move to
2909 <bits/range_access.h>.
2910 (iota_view): Replace using-directive with using-declarations.
2911 * testsuite/std/ranges/iota/93267.cc: New test.
2912 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
2914 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
2917 * include/bits/fs_path.h (path::generic_string<C,A>)
2918 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
2919 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
2920 root-dir is converted to forward slash in generic pathname.
2921 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
2922 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
2925 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
2927 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
2928 (__atomic_float): Add default member initializer for C++20.
2929 * include/std/atomic (atomic): Likewise.
2930 (atomic::atomic()): Remove noexcept-specifier on default constructor.
2931 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
2932 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
2934 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2935 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
2936 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
2937 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
2938 expected result for is_trivially_default_constructible.
2939 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2940 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
2941 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
2942 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2943 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
2944 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
2945 expected results for is_trivially_default_constructible.
2946 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
2949 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
2951 * testsuite/util/testsuite_iterators.h: Improve comment.
2953 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
2954 initialization syntax.
2957 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
2958 of base class independent of __cplusplus value.
2959 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
2960 type defined in the base class
2961 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
2962 * testsuite/24_iterators/istreambuf_iterator/requirements/
2963 base_classes.cc: Adjust expected base class for C++98.
2965 2020-01-09 Olivier Hainque <hainque@adacore.com>
2967 * doc/xml/manual/appendix_contributing.xml: Document _C2
2968 as a reserved identifier, by VxWorks.
2969 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
2970 * include/bits/stl_multimap.h: Likewise.
2972 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2974 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
2975 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
2976 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
2977 partial specialization to disambiguate the two constrained
2980 * include/experimental/type_traits (experimental::is_pod_v): Disable
2981 -Wdeprecated-declarations warnings around reference to std::is_pod.
2982 * include/std/type_traits (is_pod_v): Likewise.
2983 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
2984 is_standard_layout and is_trivial. Do not check is_pod for C++20.
2985 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
2986 Add -Wno-deprecated for C++20.
2987 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
2988 * testsuite/20_util/is_pod/value.cc: Likewise.
2989 * testsuite/experimental/type_traits/value.cc: Likewise.
2991 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
2993 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
2994 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
2995 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
2997 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
3000 * include/bits/random.h (operator>>): Check stream operation succeeds.
3001 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
3003 (operator>>): Remove redundant __istream_type typedefs. Check stream
3005 (__extract_params): New function to fill a vector from a stream.
3006 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
3009 * config/abi/pre/gnu.ver: Add new exports.
3010 * include/std/memory_resource (memory_resource::~memory_resource()):
3011 Do not define inline.
3012 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
3013 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
3015 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
3016 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
3018 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
3021 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
3023 (_Hashtable<>::__fwd_value_for): New.
3024 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
3026 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
3027 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
3028 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
3030 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
3031 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
3033 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
3035 * testsuite/23_containers/unordered_set/92124.cc: New.
3037 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
3040 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
3041 detailed error reporting for remove_all. Check result of recursive
3042 call before incrementing iterator.
3043 (remove_all(const path&), remove_all(const path&, error_code&)): Use
3045 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
3046 result of recursive call before incrementing iterator.
3047 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
3048 are reported correctly.
3049 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
3051 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
3053 * include/std/condition_variable
3054 (condition_variable_any::wait_on): Rename to match current draft
3056 (condition_variable_any::wait_on_until): Likewise.
3057 (condition_variable_any::wait_on_for): Likewise.
3058 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
3059 Adjust tests to account for renamed methods.
3061 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
3064 * include/bits/stl_tree.h
3065 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
3066 std::move_if_noexcept by std::move.
3067 * testsuite/23_containers/map/92124.cc: New.
3068 * testsuite/23_containers/set/92124.cc: New.
3070 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
3072 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
3073 (stop_source): Likewise (LWG 3362).
3074 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
3077 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
3078 (lexicographical_compare_three_way): Do not depend on
3080 * include/std/version (__cpp_lib_three_way_comparison): Only define
3081 when __cpp_lib_concepts is defined.
3082 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3084 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
3086 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3087 Only define four-argument overload when __cpp_lib_concepts is defined.
3089 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
3091 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
3093 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3095 Update copyright years.
3097 Copyright (C) 2020 Free Software Foundation, Inc.
3099 Copying and distribution of this file, with or without modification,
3100 are permitted in any medium without royalty provided the copyright
3101 notice and this notice are preserved.