1 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
4 * include/debug/deque (deque(const _Base&)): Replace parameter
5 with a struct that wraps a const _Base&.
6 * include/debug/forward_list (forward_list(_Base_ref)): New
8 * include/debug/list (list(const _Base&)): Replace parameter
9 with a struct that wraps a const _Base&.
10 * include/debug/map.h (map(const _Base&)): Likewise.
11 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
12 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
13 * include/debug/set.h (set(const _Base&)): Likewise.
14 * include/debug/unordered_map (unordered_map(const _Base&))
15 (unordered_multimap(const _Base&)): Likewise.
16 * include/debug/unordered_set (unordered_set(const _Base&))
17 (unordered_multiset(const _Base&)): Likewise.
18 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
19 Adjust dg-error line number.
20 * include/debug/vector (vector(const _Base&)): Likewise.
21 * testsuite/23_containers/deque/debug/90102.cc: New test.
22 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
23 * testsuite/23_containers/list/debug/90102.cc: New test.
24 * testsuite/23_containers/map/debug/90102.cc: New test.
25 * testsuite/23_containers/multimap/debug/90102.cc: New test.
26 * testsuite/23_containers/multiset/debug/90102.cc: New test.
27 * testsuite/23_containers/set/debug/90102.cc: New test.
28 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
29 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
30 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
31 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
32 * testsuite/23_containers/vector/debug/90102.cc: New test.
34 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
37 * include/bits/fs_path.h (path::_S_to_string): Move to
38 namespace-scope and rename to ...
39 (__detail::__string_from_range): ... this.
40 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
41 convert a char sequence containing UTF-8 to wstring.
42 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
43 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
44 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
45 __string_from_range to obtain a contiguous range and
46 __wstr_from_utf8 to obtain a wide string.
47 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
48 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
50 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
53 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
55 * testsuite/util/testsuite_iterators.h:
56 (input_iterator_wrapper::operator++(int)): Return proxy object.
58 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
60 * doc/xml/manual/evolution.xml: Document deprecation of
61 __is_nullptr_t and removal of std::allocator members.
62 * doc/html/manual/api.html: Regenerate.
64 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
66 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
67 * doc/xml/manual/evolution.xml: Likewise.
68 * doc/html/manual/api.html: Regenerate.
69 * doc/html/manual/containers.html: Regenerate.
71 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
73 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
74 * doc/html/faq.html: Regenerate.
76 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
78 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
81 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
83 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
84 www.cs.princeton.edu to https.
85 * doc/html/manual/policy_data_structures.html: Regenerate.
87 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
89 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
92 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
95 * configure: Regenerated.
97 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
100 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
101 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
102 (unordered_map<>::insert_or_assign): Adapt.
104 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
107 * include/bits/atomic_base.h (__atomic_impl::load): Add
108 cv-qualifiers to parameter so that _Tp is deduced as the
110 * testsuite/29_atomics/atomic_float/95282.cc: New test.
112 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
115 * include/std/ranges (transform_view::_Sentinel): Allow hidden
116 friends to work with _Iterator<true> and _Iterator<false>.
117 (join_view::_Sentinel): Likewise.
118 * testsuite/std/ranges/adaptors/95322.cc: New test.
120 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
123 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
124 operators to use the correct operations on the underlying
126 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
128 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
130 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
132 2020-05-26 Patrick Palka <ppalka@redhat.com>
135 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
136 Remove and instead define it ...
137 (common_iterator::_Proxy): ... here.
138 (common_iterator::operator->): Use it.
139 * testsuite/24_iterators/common_iterator/2.cc: New test.
140 * testsuite/std/ranges/adaptors/95322.cc: New test.
142 2020-05-23 Patrick Palka <ppalka@redhat.com>
145 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
146 dg-additional-options. Avoid unused-but-set-variable warning.
148 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
151 * include/debug/helper_functions.h (__get_distance): Only declare
152 as a constexpr function for C++14 and up.
153 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
155 * include/bits/fs_path.h (__detail::_S_range_begin)
156 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
157 overloaded function template __detail::__effective_range.
158 (__detail::__effective_range): New overloaded function template to
159 create a basic_string or basic_string_view for an effective range.
160 (__detail::__value_type_is_char): Use __detail::__effective_range.
161 Do not use remove_const on value type.
162 (__detail::__value_type_is_char_or_char8_t): Likewise.
163 (path::path(const Source&, format))
164 (path::path(const Source&, const locale&))
165 (path::operator/=(const Source&), path::append(const Source&))
166 (path::concat(const Source&)): Use __detail::__effective_range.
167 (path::_S_to_string(InputIterator, InputIterator)): New function
168 template to create a string view if possible, or string otherwise.
169 (path::_S_convert): Add overloads that convert a string returned
170 by __detail::__effective_range. Use if-constexpr to inline conversion
171 logic from all overloads of _Cvt::_S_convert.
172 (path::_S_convert_loc): Add overload that converts a string. Use
173 _S_to_string to avoid allocation when possible.
174 (path::_Cvt): Remove.
175 (path::operator+=(CharT)): Remove indirection through path::concat.
176 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
177 overload for non-const pointers, to avoid constructing a std::string.
178 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
179 compilation with call to _S_convert.
181 * include/bits/fs_path.h (__detail::_S_range_begin)
182 (__detail::_S_range_end): Remove unintentional static specifiers.
183 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
184 (__detail::_S_range_end): Likewise.
186 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
187 Replace alias template with variable template. Don't remove const.
188 (filesystem::__detail::__is_path_src): Replace overloaded function
189 template with variable template and specializations.
190 (filesystem::__detail::__is_path_iter_src): Replace alias template
192 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
194 (filesystem::__detail::_Path2): New alias template for checking
195 InputIterator requirements.
196 (filesystem::__detail::__constructible_from): Remove.
197 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
198 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
199 constructor arguments of void and void* types.
201 2020-05-21 Matthias Kretz <kretz@kde.org>
203 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
204 allowing runtest to work without arguments.
205 * testsuite/Makefile.in: Regenerate.
207 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
210 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
211 Reorder constraints to avoid recursion when constructors use
212 iterator_traits (LWG 3420).
213 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
215 * include/experimental/socket (basic_socket::is_open()
216 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
218 * include/experimental/bits/net.h (__endpoint, __protocol)
219 (__acceptable_protocol, __inet_protocol): New concepts.
220 (__detail::__is_endpoint): Move trait from <experimental/socket>.
221 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
223 (__endpoint, __protocol, __acceptable_protocol): New variable
225 * include/experimental/socket (__is_endpoint): Move to net.h header.
226 (basic_socket, basic_socket_acceptor): Check requirements.
228 * include/experimental/executor (use_future_t::use_future_t()): Fix
229 incorrect noexcept-specifier.
230 * include/experimental/internet (basic_resolver_results): Adjust
232 * include/experimental/socket (__basic_socket_impl::release): Add
234 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
236 (basic_socket::release(), basic_socket::release(error_code&)): Add
237 missing member functions.
238 (basic_socket::is_open()): Add nodiscard attribute.
239 (basic_socket::close(error_code&)): Pass argument to base function.
240 (basic_socket_acceptor::release())
241 (basic_socket_acceptor::release(error_code&)): Add missing member
243 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
244 (basic_socket_streambuf::error()): Add noexcept.
245 (basic_socket_iostream::error()): Likewise.
246 * testsuite/experimental/net/socket/basic_socket.cc: New test.
248 * include/experimental/buffer: Replace typedefs with
250 * include/experimental/executor: Likewise.
251 * include/experimental/internet: Likewise.
252 * include/experimental/socket: Likewise.
253 * include/experimental/timer: Likewise.
255 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
258 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
260 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
262 (random_device::_M_init): Use __x86_rdseed_rdrand when both
263 instructions are available.
264 * testsuite/26_numerics/random/random_device/94087.cc: New test.
266 2020-05-19 Patrick Palka <ppalka@redhat.com>
269 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
271 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
273 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
276 * configure: Regenerated.
278 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
280 * configure: Regenerated.
282 2020-05-13 Alexandre Oliva <oliva@adacore.com>
285 * include/experimental/memory_resource
286 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
287 x86-vxworks as on x86-solaris.
288 (__resource_adaptor_imp::do_deallocate): Likewise.
289 * testsuite/experimental/memory_resource/new_delete_resource.cc:
291 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
292 (test03): Drop max-align test for char-aligned alloc.
294 2020-05-08 Ulrich Drepper <drepper@redhat.com>
296 * include/bits/atomic_base.h (atomic_flag): Implement test member
298 * include/std/version: Define __cpp_lib_atomic_flag_test.
299 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
300 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
302 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
304 PR libstdc++/94971 (partial)
305 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
306 std::sample using macro to work in parallel mode.
307 (__sort_fn): Likewise for std::sort.
308 (ranges::__nth_element_fn): Likewise for std::nth_element.
309 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
310 Likewise for std::__min_cmp.
311 * include/parallel/algobase.h (lexicographical_compare_three_way):
312 Add to namespace std::__parallel.
315 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
316 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
317 (_UnguardedIterator::operator _RAIter): Add const qualifier.
318 (operator<(_GuardedIterator&, _GuardedIterator&)
319 (operator<=(_GuardedIterator&, _GuardedIterator&)
320 (operator<(_UnguardedIterator&, _UnguardedIterator&)
321 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
322 parameters to const references.
324 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
326 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
327 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
329 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
331 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
332 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
333 * include/bits/stl_bvector.h (__fill_bvector): Move outside
334 _GLIBCXX_STD_C namespace.
335 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
337 (__fill_a1): ...this.
338 * testsuite/25_algorithms/fill/bvector/1.cc: New.
340 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
342 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
344 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
346 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
347 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
349 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
350 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
353 2020-05-06 Martin Liska <mliska@suse.cz>
356 2020-05-05 Martin Liska <mliska@suse.cz>
358 * include/parallel/multiway_merge.h:
359 Use const for _Compare template argument.
361 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
363 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
364 versions for GCC 9.[123] and 10.1 releases.
365 * doc/html/*: Regenerate.
367 2020-05-06 Jakub Jelinek <jakub@redhat.com>
369 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
370 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
371 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
372 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
373 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
374 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
375 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
377 2020-05-05 Martin Liska <mliska@suse.cz>
380 * include/parallel/multiway_merge.h:
381 Use const for _Compare template argument.
383 2020-05-04 Fangrui Song <maskray@google.com>
385 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
387 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
389 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
390 * doc/html/*: Regenerate.
393 * src/c++17/memory_resource.cc
394 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
397 2020-05-04 Nathan Sidwell <nathan@acm.org>
400 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
401 ptrdiff_t before negation, to show intent more clearly.
403 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
406 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
407 Add comment about single-threaded behaviour.
408 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
409 class member access out of loop.
410 (synchronized_pool_resource::synchronized_pool_resource())
411 (synchronized_pool_resource::~synchronized_pool_resource())
412 (synchronized_pool_resource::release()): Check __gthread_active_p
413 before creating and/or deleting the thread-specific data key.
414 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
416 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
417 path for single-threaded case.
418 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
419 Likewise. Return if unable to find a pool that owns the allocation.
420 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
422 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
424 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
427 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
430 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
431 usable in constant expressions.
432 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
435 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
438 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
440 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
441 Patrick Palka <ppalka@redhat.com>
444 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
445 Add trait to determine return type and an alias for it.
446 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
448 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
449 the result of ranges::iter_move.
450 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
451 instead of checking the result of ranges::iter_move.
452 * testsuite/24_iterators/customization_points/92894.cc: New test.
453 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
455 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
458 * include/std/type_traits (__is_complete_or_unbounded): Replace
460 * testsuite/17_intro/badnames.cc: New test.
462 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
465 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
466 (allocator_traits::_S_destroy)
467 (allocator_traits<allocator<T>>::construct): Use traits in
469 * include/bits/allocator.h (allocator<void>::construct)
470 (allocator<void>::destroy): Likewise.
471 * include/ext/malloc_allocator.h (malloc_allocator::construct)
472 (malloc_allocator::destroy): Likewise.
473 * include/ext/new_allocator.h (new_allocator::construct)
474 (new_allocator::destroy): Likewise.
475 * testsuite/20_util/allocator/89510.cc: New test.
476 * testsuite/ext/malloc_allocator/89510.cc: New test.
477 * testsuite/ext/new_allocator/89510.cc: New test.
479 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
482 * include/bits/basic_string.tcc: Update comment about explicit
485 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
488 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
489 Remove non-standard macro.
490 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
491 to indicate P1032R1 support.
492 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
493 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
494 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
495 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
496 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
497 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
498 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
500 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
501 * testsuite/21_strings/basic_string_view/operations/copy/char/
502 constexpr.cc: Likewise.
503 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
506 * include/bits/alloc_traits.h (_S_construct): Restore placement
507 new-expression for C++11/14/17 and call std::construct_at directly
509 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
510 function returning void.
511 * testsuite/20_util/specialized_algorithms/
512 uninitialized_value_construct/94831.cc: New test.
513 * testsuite/23_containers/vector/cons/94831.cc: New test.
515 2020-04-28 Patrick Palka <ppalka@redhat.com>
517 LWG 3433 subrange::advance(n) has UB when n < 0
518 * include/std/ranges (subrange::prev): Fix typo.
519 (subrange::advance): Handle a negative argument as per the proposed
520 resolution of LWG 3433.
521 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
523 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
524 Iain Sandoe <iain@sandoe.co.uk>
527 * include/std/coroutine: Implement handing for non-
528 class coroutine return types.
530 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
532 * include/experimental/executor (service_already_exists): Make default
533 constructor public (LWG 3414).
534 * testsuite/experimental/net/execution_context/make_service.cc: Check
535 the service_already_exists can be default constructed.
537 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
538 Jonathan Wakely <jwakely@redhat.com>
542 * include/std/any (any): Rename template parameters for consistency
544 (any::_Decay): Rename to _Decay_if_not_any.
545 (any::any(T&&):: Remove is_constructible from constraints. Remove
546 non-standard overload.
547 (any::any(in_place_type_t<T>, Args&&...))
548 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
549 (any::emplace(Args&&...))
550 (any::emplace(initializer_list<U>, Args&&...)):
551 Use decay_t instead of _Decay.
552 * testsuite/20_util/any/cons/90415.cc: New test.
553 * testsuite/20_util/any/cons/92156.cc: New Test.
554 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
556 * testsuite/20_util/any/modifiers/92156.cc: New test.
558 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
560 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
561 * doc/html/*: Regenerate.
563 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
564 value for C++17 to 201803L because P0858R0 is supported for C++17.
565 * include/std/version (__cpp_lib_array_constexpr): Likewise.
566 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
567 Check for value corresponding to P0031R0 features being tested.
568 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
569 Check for value corresponding to P0858R0 features being tested.
571 * include/std/version (__cpp_lib_three_way_comparison): Define for
574 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
576 * include/experimental/net/executor (system_context): Mark
577 system_context::system_context() = delete.
578 * testsuite/experimental/net/executor/1.cc: Add new
579 test to check system_context is not default constructible.
581 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
583 * include/std/coroutine: Update the inline namespace to __n4861.
584 Add the __cpp_lib_coroutine define, set to 201902L.
585 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
587 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
589 * include/std/execution (__cpp_lib_execution): Define to indicate
590 support for P0024R2 and P1001R2.
591 * include/std/version (__cpp_lib_execution): Define.
592 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
593 defined by <algorithm>, move other tests to new tests ...
594 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
595 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
596 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
597 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
599 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
600 different values for C++17 and C++20, to indicate different feature
601 sets. Update value for C++20 to indicate P1032R1 support.
602 * include/std/version (__cpp_lib_array_constexpr): Likewise.
603 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
604 Check feature test macro.
605 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
607 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
609 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
610 in C++17 mode and check feature test macro.
612 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
614 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
615 defined by <utility>.
617 * include/std/functional (__cpp_lib_concepts): Update macro value to
618 indicate P1964R2 support.
619 * include/std/version (__cpp_lib_concepts): Likewise.
620 * testsuite/std/concepts/1.cc: Adjust expected value.
621 * testsuite/std/concepts/2.cc: Likewise.
623 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
624 __cpp_lib_constexpr_functional.
625 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
626 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
628 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
629 indicate P1006R1 support.
630 (__cpp_lib_to_address): Define to indicate P0653R2 support.
631 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
633 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
635 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
637 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
639 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
640 Define to indicate P0339R6 support.
641 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
642 indicate P0457R2 support.
643 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
644 to indicate P0758R1 support.
645 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
646 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
647 * include/std/version (__cpp_lib_atomic_float)
648 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
649 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
650 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
651 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
652 (__cpp_lib_to_address): Define.
653 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
655 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
657 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
659 * include/std/version (__cpp_lib_map_insertion)
660 (__cpp_lib_unordered_map_insertion): Remove.
662 * include/std/condition_variable (__cpp_lib_jthread): Remove
663 redundant definition.
664 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
665 indicate P1869R1 support.
666 * include/std/version (__cpp_lib_jthread): Update value.
667 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
668 for updated macro value.
669 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
671 * testsuite/30_threads/jthread/1.cc: Likewise.
672 * testsuite/30_threads/jthread/2.cc: Likewise.
673 * testsuite/30_threads/stop_token/1.cc: Likewise.
674 * testsuite/30_threads/stop_token/2.cc: Likewise.
676 * testsuite/21_strings/basic_string/erasure.cc: Check for
677 __cpp_lib_erase_if macro.
678 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
680 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
681 * testsuite/23_containers/list/erasure.cc: Likewise.
682 * testsuite/23_containers/map/erasure.cc: Likewise.
683 * testsuite/23_containers/set/erasure.cc: Likewise.
684 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
685 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
686 * testsuite/23_containers/vector/erasure.cc: Likewise.
688 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
690 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
691 to define operator<=>.
692 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
694 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
695 * doc/Makefile.in: Regenerate.
696 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
698 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
699 to the C++11 status table.
700 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
701 proposals with table matching contents of the C++14 standard.
702 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
704 * doc/html/*: Regenerate.
707 * include/std/type_traits (__is_nt_constructible_impl): Add partial
708 specializations for bounded arrays with non-empty initializers.
709 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
711 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
713 * testsuite/lib/libstdc++.exp: Add additional_flags=
714 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
715 compiling with a newer Thread Building Blocks.
717 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
719 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
721 * testsuite/20_util/is_constructible/51185.cc: Make test class a
722 non-aggregate so that the test verifies the same thing in all -std
724 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
725 results for some types when paren-init for aggregates is supported.
727 * include/std/version (__cpp_lib_three_way_comparison): Update value.
728 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
729 (__detail::__synth3way): Add noexcept-specifier.
731 * include/bits/stl_map.h (map): Define operator<=> and remove
733 * include/bits/stl_multimap.h (multimap): Likewise.
734 * include/bits/stl_multiset.h (multiset): Likewise.
735 * include/bits/stl_set.h (set): Likewise.
736 * include/bits/stl_tree.h (_Rb_tree): Likewise.
737 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
738 operator!= for C++20.
739 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
740 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
741 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
742 * include/debug/set.h (__gnu_debug::set): Likewise.
743 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
744 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
745 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
746 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
748 2020-04-20 Matthias Kretz <kretz@kde.org>
750 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
752 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
754 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
755 * include/bits/stl_stack.h (stack): Likewise.
756 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
757 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
759 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
760 Remove redundant operator!= for C++20.
761 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
763 * include/debug/unordered_map (unordered_map, unordered_multimap):
765 * include/debug/unordered_set (unordered_set, unordered_multiset):
769 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
770 redundant assignment in constructor.
772 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
774 * include/std/chrono (duration, time_point): Define operator<=> and
775 remove redundant operator!= for C++20.
776 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
778 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
781 * testsuite/util/native_type/native_priority_queue.hpp: Use
782 allocator_traits to rebind allocator.
784 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
786 * include/bits/forward_list.h (forward_list): Define operator<=> and
787 remove redundant comparison operators for C++20.
788 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
789 * include/bits/stl_deque.h (deque): Likewise.
790 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
791 * include/bits/stl_list.h (list): Likewise.
792 * include/bits/stl_vector.h (vector): Likewise.
793 * include/debug/deque (__gnu_debug::deque): Likewise.
794 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
795 * include/debug/list (__gnu_debug::list): Likewise.
796 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
798 * include/debug/vector (__gnu_debug::vector): Likewise.
799 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
800 operator<=> for C++20.
801 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
802 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
803 * testsuite/23_containers/list/cmp_c++20.cc: New test.
804 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
805 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
807 * include/bits/basic_string.h (basic_string): Define operator<=> and
808 remove redundant comparison operators for C++20.
809 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
810 Add comparison_category members.
811 (__detail::__char_traits_cmp_cat): New helper to get comparison
812 category from char traits class.
813 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
815 (sub_match): Define operator<=> and remove redundant comparison
817 (match_results): Remove redundant operator!= for C++20.
818 * include/std/string_view (basic_string_view): Define operator<=> and
819 remove redundant comparison operators for C++20.
820 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
822 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
824 * testsuite/21_strings/basic_string_view/operations/copy/char/
825 constexpr.cc: Initialize variable.
826 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
827 constexpr.cc: Likewise.
828 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
829 dg-do directive and remove comments showing incorrect signatures.
830 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
832 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
834 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
836 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
838 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
840 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
841 name of unused parameter.
843 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
845 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
846 (directory_entry): Define operator<=> and remove redundant comparison
848 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
849 * include/bits/fs_path.h (path): Define operator<=> and remove
850 redundant comparison operators for C++20.
851 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
852 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
853 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
854 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
856 * include/bits/allocator.h (operator!=): Do not define for C++20.
857 * include/bits/locale_classes.h (operator!=): Likewise.
858 * include/bits/std_function.h (operator==(nullptr_t, const function&))
859 (operator!=(const function&, nullptr_t))
860 (operator!=(nullptr_t, const function&)): Likewise.
861 * include/ext/bitmap_allocator.h (operator!=): Likewise.
862 * include/ext/debug_allocator.h (operator!=): Likewise.
863 * include/ext/extptr_allocator.h (operator!=): Likewise.
864 * include/ext/malloc_allocator.h (operator!=): Likewise.
865 * include/ext/mt_allocator.h (operator!=): Likewise.
866 * include/ext/new_allocator.h (operator!=): Likewise.
867 * include/ext/pool_allocator.h (operator!=): Likewise.
868 * include/ext/throw_allocator.h (operator!=): Likewise.
869 * include/std/bitset (bitset::operator!=): Likewise.
870 * include/std/memory_resource (operator!=): Likewise.
871 * include/std/scoped_allocator (operator!=): Likewise.
873 * include/std/typeindex (operator<=>): Define for C++20.
874 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
876 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
878 * libsupc++/compare (compare_three_way): Fix constraint so that
879 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
880 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
884 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
885 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
886 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
887 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
888 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
889 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
893 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
894 * testsuite/18_support/comparisons/categories/94565.cc: New test.
896 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
898 * include/std/coroutine: Update coroutines builtin define,
901 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
903 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
904 (strong_order, weak_order, partial_order): Replace uses of <=> with
905 compare_three_way function object (LWG 3324).
906 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
907 equality operator so that X satisfies three_way_comparable.
908 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
910 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
912 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
913 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
914 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
915 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
916 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
918 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
920 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
922 * include/std/complex (operator==(const T&, const complex<T>&))
923 (operator!=(const complex<T>&, const complex<T>&))
924 (operator!=(const complex<T>&, const T&))
925 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
926 * testsuite/26_numerics/slice/compare.cc: New test.
928 * include/std/charconv (to_chars_result, from_chars_result): Add
929 defaulted equality comparisons for C++20.
930 * testsuite/20_util/from_chars/compare.cc: New test.
931 * testsuite/20_util/to_chars/compare.cc: New test.
933 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
936 * include/std/charconv (__integer_to_chars_result_type)
937 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
939 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
940 use of std::string_view with std::string.
941 * testsuite/20_util/from_chars/2.cc: Likewise.
942 * testsuite/20_util/to_chars/1.cc: Likewise.
943 * testsuite/20_util/to_chars/2.cc: Likewise.
945 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
948 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
949 usable in constant expressions for C++20.
950 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
951 _GLIBCXX20_CONSTEXPR.
952 (std::char_traits<char>, std::char_traits<wchar_t>)
953 (std::char_traits<char8_t>): Make move, copy and assign usable in
954 constant expressions for C++20.
955 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
956 and copy usable in constant expressions for C++20.
957 * include/std/string_view (basic_string_view::copy): Add
958 _GLIBCXX20_CONSTEXPR.
959 * testsuite/21_strings/basic_string_view/operations/copy/char/
960 constexpr.cc: New test.
961 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
962 constexpr.cc: New test.
964 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
966 * doc/xml/manual/appendix_contributing.xml: Refer to Git
967 documentation instead of Subversion. Switch to https.
968 * doc/html/manual/appendix_contributing.html: Regenerate.
970 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
973 * include/bits/ptr_traits.h (__to_address): Add special case for debug
974 iterators, to avoid dereferenceable check.
975 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
976 * testsuite/20_util/to_address/debug.cc: New test.
978 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
980 * testsuite/experimental/net/execution_context/use_service.cc:
981 Require pthread and gthreads.
983 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
985 * doc/xml/manual/appendix_free.xml: Move "free books" list from
987 * doc/html/manual/appendix_free.html: Regenerate.
989 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
991 Library-side tests for parenthesized aggregate init
996 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
997 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
998 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
999 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1000 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
1001 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1002 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1003 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
1004 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1006 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
1007 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1008 * testsuite/20_util/variant/92878_92947.cc: Likewise.
1009 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1011 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1013 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1015 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1017 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1019 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1021 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
1022 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1023 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1025 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1026 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1028 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1030 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1032 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1034 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1037 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
1039 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
1040 for changes due to parenthesized aggregate-initialization in C++20.
1041 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
1042 with std::chrono::sys_time in C++20.
1044 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
1045 to constrain C++20 versions of comparison operators. Fix backwards
1046 logic of relational operators.
1047 (move_iterator): Use requires-clause to constrain comparison operators
1048 in C++20. Do not declare non-standard same-type overloads for C++20.
1049 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
1050 of comparisons and check using greedy_ops type.
1051 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
1052 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
1053 main function from compile-only test.
1054 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
1056 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
1058 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
1059 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
1060 C++20 concepts are required.
1061 * include/bits/stl_iterator_base_types.h: Likewise.
1062 * include/std/concepts: Likewise.
1063 * include/std/version: Likewise.
1064 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
1067 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
1068 (reverse_iterator::iterator_category): Define for C++20.
1069 (reverse_iterator): Define comparison operators correctly for C++20.
1070 (__normal_iterator): Add constraints to comparison operators for C++20.
1071 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
1072 overload for input iterators.
1073 (move_iterator): Add constraints to comparison operators for C++20.
1074 Define operator<=> for C++20.
1075 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
1076 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
1077 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
1078 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
1080 * include/bits/iterator_concepts.h (__detail::__decay_copy)
1081 (__detail::__member_begin, __detail::__adl_begin): Move here from
1082 <bits/range_access.h>.
1083 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
1084 * bits/range_access.h (__cust_access::__decay_copy)
1085 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
1086 <bits/iterator_concepts.h>.
1087 (ranges::iterator_t): Use __detail::__range_iter_t.
1088 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
1089 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
1090 (front_insert_iterator): Likewise.
1091 (insert_iterator): Implement changes from P0896R4 for C++20.
1092 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
1093 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
1094 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
1095 for inclusion in synopsis_c++20.cc which expects different signatures
1096 for some function templates.
1097 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
1099 * include/std/type_traits (__is_array_convertible): Move definition
1100 to immediately after is_convertible.
1102 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
1104 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
1105 (chrono::months, chrono::sys_days, chrono::local_t)
1106 (chrono::local_time, chrono::local_seconds, chrono::local_days):
1108 (chrono::time_point): Add missing static assert.
1109 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
1110 * testsuite/std/time/clock/file/overview.cc: New test.
1111 * testsuite/std/time/clock/file/members.cc: New test.
1112 * testsuite/std/time/syn_c++20.cc: New test.
1114 2020-03-25 Mike Crowe <mac@mcrowe.com>
1116 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
1118 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
1121 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
1123 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
1124 * include/std/chrono (filesystem::__file_clock): Here.
1125 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
1126 Define public member functions for C++20.
1127 (is_clock, is_clock_v): Define traits for C++20.
1128 * include/std/condition_variable (condition_variable::wait_until): Add
1129 check for valid clock.
1130 * include/std/future (_State_baseV2::wait_until): Likewise.
1131 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
1132 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
1134 * include/std/thread (this_thread::sleep_until): Likewise.
1135 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
1136 slow_clock with new namespace.
1137 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
1139 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1141 * testsuite/30_threads/future/members/clock_neg.cc: New test.
1142 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
1143 Qualify slow_clock with new namespace.
1144 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
1145 clock_neg.cc: New test.
1146 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
1148 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
1149 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1151 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
1152 slow_clock with new namespace.
1153 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
1154 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
1156 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
1157 * testsuite/std/time/traits/is_clock.cc: New test.
1158 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
1161 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
1164 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
1165 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
1166 Improve test coverage.
1169 * include/bits/fs_path.h (path::_S_str_convert): Replace first
1170 parameter with basic_string_view so that strings with different
1171 allocators can be accepted.
1172 (path::generic_string<C,T,A>()): Use basic_string object that uses the
1173 right allocator type.
1174 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
1175 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
1178 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
1181 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
1182 (__is_nt_default_constructible_impl): Remove.
1183 (__is_nothrow_default_constructible_impl): Remove.
1184 (__is_nt_constructible_impl): Add bool template parameter. Adjust
1185 partial specializations.
1186 (__is_nothrow_constructible_impl): Replace class template with alias
1188 (is_nothrow_default_constructible): Derive from alias template
1189 __is_nothrow_constructible_impl instead of
1190 __is_nothrow_default_constructible_impl.
1191 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
1193 * include/std/stop_token (stop_token::_Stop_state_ref): Define
1194 comparison operators explicitly if the compiler won't synthesize them.
1196 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
1197 __cpp_lib_concepts before using iter_reference_t.
1198 * include/bits/stream_iterator.h (istream_iterator): Check
1199 __cpp_lib_concepts before using default_sentinel_t.
1200 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
1203 * include/experimental/executor (executor::executor(Executor)): Call
1204 make_shared directly instead of _M_create. Create _Tgt1 object.
1205 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
1206 Call allocate_shared directly instead of _M_create. Create _Tgt2
1208 (executor::target_type): Add cast needed for new _Tgt interface.
1209 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
1210 (executor::_Tgt): Define the same interface whether RTTI is enabled or
1212 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
1213 std::type_info in the interface.
1214 (executor::_Tgt::_M_func): Add data member.
1215 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
1216 (executor::_Tgt1::_S_func): Define function to access target without
1218 (executor::_M_create): Remove.
1219 (operator==, operator!=): Simplify comparisons for executor.
1220 * include/experimental/socket (is_error_code_enum<socket_errc>):
1221 Define specialization before use.
1222 * testsuite/experimental/net/executor/1.cc: New test.
1224 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
1227 * include/experimental/executor (service_already_exists): Add default
1228 constructor. Declare make_service to be a friend.
1229 * testsuite/experimental/net/execution_context/make_service.cc: New
1232 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
1234 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
1235 a null pointer to functions with nonnull(1) attribute.
1237 2020-03-11 Patrick Palka <ppalka@redhat.com>
1239 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
1240 'address' -> 'std::__addressof'.
1241 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
1242 a non-forward input_range.
1243 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
1244 default constructor protected instead of deleted, like with
1245 input_iterator_wrapper.
1246 (test_range::iterator): Add comment explaining that this type is used
1247 only when the underlying wrapper is input_iterator_wrapper or
1248 output_iterator_wrapper. Remove delegating defaulted constructor so
1249 that the inherited default constructor is used instead.
1251 LWG 3286 ranges::size is not required to be valid after a call to
1252 ranges::begin on an input range
1253 * include/std/ranges (subrange::subrange): Split single-argument
1254 constructor into two, one constrained by _S_store_size and another by
1256 (take_view::begin): Call size() before calling ranges::begin(_M_base).
1257 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
1258 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
1260 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
1262 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
1263 instead of _M_current.
1264 (split_view::_OuterIter::operator++): Likewise.
1266 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
1267 (transform_view::_Iterator::operator*): Add noexcept-specifier.
1268 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
1269 (split_view::_OuterIter::__current): Add noexcept.
1270 (split_view::_InnerIter::__iter_swap): Remove.
1271 (split_view::_InnerIter::__iter_move): Remove.
1272 (split_view::_InnerIter::_M_i_current): New accessors.
1273 (split_view::_InnerIter::__at_end): Use _M_i_current().
1274 (split_view::_InnerIter::operator*): Likewise.
1275 (split_view::_InnerIter::operator++): Likewise.
1276 (iter_move(const _InnerIter&)): Likewise.
1277 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
1278 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
1279 for iter_move and iter_swap on split_view's inner iterator.
1282 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
1283 Change expression in noexcept-specifier to match function body.
1285 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
1286 comment explaining multiple dg-do directives.
1287 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
1288 so test is run as well as compiled.
1290 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
1293 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
1294 handle concatenations that change the type of the first component.
1295 (path::operator+=(basic_string_view<value_type>)): Likewise.
1296 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
1298 2020-03-06 Patrick Palka <ppalka@redhat.com>
1300 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
1301 join_view::_Sentinel<!_Const>.
1302 * testsuite/std/ranges/adaptors/join.cc: Augment test.
1305 * include/bits/range_access.h (__cust_access::_Empty::operator()):
1306 Declare return type to be bool instead of auto.
1307 * testsuite/std/ranges/adaptors/93978.cc: New test.
1309 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
1312 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
1313 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
1314 second argument to __glibcxx_rwlock_init.
1315 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
1318 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
1319 test to not fail due to PR 94063.
1320 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
1321 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
1323 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
1325 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
1328 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
1330 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
1331 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
1332 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1333 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
1334 for return value, and in comparison.
1335 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
1338 * include/std/string_view: Include <bits/ostream_insert.h>.
1339 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
1341 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
1343 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
1345 2020-03-04 Patrick Palka <ppalka@redhat.com>
1348 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
1349 condition for when to use memset, making sure to additionally check that
1350 the output pointer's value type is a non-volatile byte type. Instead of
1351 requiring that the fill type is a byte type, just require that it's an
1353 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1355 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1357 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
1358 blocked by PR 94017.
1359 * testsuite/25_algorithms/fill/94017.cc: New test.
1360 * testsuite/25_algorithms/fill_n/94017.cc: New test.
1362 LWG 3355 The memory algorithms should support move-only input iterators
1364 * include/bits/ranges_uninitialized.h
1365 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
1366 to copy __ifirst, which could be a move-only input iterator. Use
1367 operator- instead of ranges::distance to compute distance from a sized
1369 (__uninitialized_copy_n_fn::operator()): Likewise.
1370 (__uninitialized_move_fn::operator()): Likewise.
1371 (__uninitialized_move_n_fn::operator()): Likewise.
1372 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
1373 attempting to copy __first.
1374 (__uninitialized_destroy_n_fn::operator()): Likewise.
1375 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1377 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
1379 * .../specialized_algorithms/uninitialized_move/constrained.cc:
1382 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
1383 protected instead of private.
1384 (test_sized_range_sized_sent): New.
1386 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
1387 New testsuite iterator.
1388 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
1389 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1391 * include/bits/ranges_uninitialized.h
1392 (uninitialized_copy_fn::operator()): Pass a reference type as the first
1393 argument to is_nothrow_assignable_v.
1394 (uninitialized_copy_fn::operator()): Likewise.
1395 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
1396 with the input iterator stripped of its move_iterator.
1397 (uninitialized_move_n_fn::operator()): Likewise.
1398 (uninitialized_fill_fn::operator()): Pass a reference type as the first
1399 argument to is_nothrow_assignable_v.
1400 (uninitialized_fill_n_fn::operator()): Likewise.
1402 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
1405 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
1406 traits to control when to use memmove and memcmp optimizations.
1407 (__is_nonvolatile_trivially_copyable): New helper trait.
1408 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
1409 use memcmp optimization with volatile data.
1410 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
1411 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
1412 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
1413 (__copy_move_backward_a2): Likewise.
1414 (__equal_aux1): Use __memcmpable.
1415 (__lexicographical_compare_aux): Do not use memcmp optimization with
1417 * testsuite/25_algorithms/copy/94013.cc: New test.
1418 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
1419 * testsuite/25_algorithms/equal/94013.cc: New test.
1420 * testsuite/25_algorithms/fill/94013.cc: New test.
1421 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
1422 * testsuite/25_algorithms/move/94013.cc: New test.
1423 * testsuite/25_algorithms/move_backward/94013.cc: New test.
1425 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
1426 Avoid redundant iterator comparisons (LWG 3410).
1428 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
1431 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
1433 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
1435 * include/std/ranges (__detail::__maybe_empty_t): Rename to
1437 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
1439 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
1442 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
1444 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1446 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1448 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
1449 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1450 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1451 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1452 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1454 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1455 Add libatomic option.
1456 * testsuite/30_threads/jthread/jthread.cc: Likewise.
1458 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
1460 * include/bits/stl_algo.h
1461 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
1462 * include/bits/stl_algobase.h: ...here.
1463 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
1465 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1467 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
1469 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1471 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
1472 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
1473 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
1474 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1475 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
1476 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1477 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1481 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1483 2020-02-28 Patrick Palka <ppalka@redhat.com>
1486 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1487 Fix condition for when to use memcmp, making it consistent with the
1488 corresponding condition used in std::lexicographical_compare.
1489 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
1491 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
1492 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
1493 existing signatures for C++2a.
1495 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1497 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
1498 test instead of just compiling it.
1500 2020-02-28 Patrick Palka <ppalka@redhat.com>
1502 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
1503 whenever the underlying range models common_range.
1505 * include/std/ranges (__detail::_CachedPosition): New struct.
1506 (views::filter_view::_S_needs_cached_begin): New member variable.
1507 (views::filter_view::_M_cached_begin): New member variable.
1508 (views::filter_view::begin): Use _M_cached_begin to cache its
1510 (views::drop_view::_S_needs_cached_begin): New static member variable.
1511 (views::drop_view::_M_cached_begin): New member variable.
1512 (views::drop_view::begin): Use _M_cached_begin to cache its result
1513 when _S_needs_cached_begin.
1514 (views::drop_while_view::_M_cached_begin): New member variable.
1515 (views::drop_while_view::begin): Use _M_cached_begin to cache its
1517 (views::reverse_view::_S_needs_cached_begin): New static member
1519 (views::reverse_view::_M_cached_begin): New member variable.
1520 (views::reverse_view::begin): Use _M_cached_begin to cache its result
1521 when _S_needs_cached_begin.
1522 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
1523 drop_view::begin caches its result.
1524 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
1525 that drop_while_view::begin caches its result.
1526 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
1527 filter_view::begin caches its result.
1528 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1529 reverse_view::begin caches its result.
1531 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1533 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1534 filesystems that silently truncate timestamps.
1535 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1538 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1539 -Wstringop-overflow warnings.
1541 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1543 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1544 -fdiagnostics-urls=never to options.
1546 2020-02-27 Patrick Palka <ppalka@redhat.com>
1548 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
1550 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
1551 (take_view::_Sentinel<_Const>): Likewise.
1552 (take_while_view::_Sentinel<_Const>): Likewise.
1553 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
1554 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1555 * testsuite/std/ranges/adaptors/take.cc: Augment test.
1556 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
1557 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1559 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
1560 base() of a vector<>::iterator is a pointer.
1561 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
1562 * testsuite/25_algorithms/move/constrained.cc: Likewise.
1563 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
1564 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
1566 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1567 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
1568 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1569 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1570 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1572 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1574 * include/debug/array (operator<=>): Define for C++20.
1575 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
1576 Adjust dg-error line numbers.
1577 * testsuite/23_containers/array/tuple_interface/
1578 tuple_element_debug_neg.cc: Likewise.
1580 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
1581 defining _GLIBCXX_ASSERTIONS.
1582 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1583 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1584 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1585 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1586 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1587 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1588 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
1589 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
1590 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
1591 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
1592 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
1593 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1595 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
1596 C++98 where the member function of the base class returns void.
1598 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
1599 equality comparisons that support value-initialized iterators.
1601 * include/bits/boost_concept_check.h (__function_requires): Add
1602 _GLIBCXX14_CONSTEXPR.
1603 * testsuite/25_algorithms/min/concept_checks.cc: New test.
1605 2020-02-26 Patrick Palka <ppalka@redhat.com>
1608 * include/std/ranges (split_view::_InnerIter::operator==): Compare
1609 the operands' _M_i rather than their _M_i.current().
1610 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1612 P1645R1 constexpr for <numeric> algorithms
1613 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
1614 partial_sum, adjacent_difference): Make conditionally constexpr for
1616 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
1618 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
1619 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
1620 constexpr for C++20.
1621 * include/std/version (__cpp_lib_constexpr_numeric): Define.
1622 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
1623 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
1624 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1625 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1626 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1627 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1628 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1629 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1630 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
1631 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
1632 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1634 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
1636 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
1637 variables in smaller scope and avoid calling ranges::distance when we
1638 know they are pointers. Remove statically-unreachable use of
1639 __builtin_unreachable().
1640 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
1643 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
1645 (__detail::__maybe_const_t): Likewise.
1646 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
1647 (transform_view, take_view, take_while_view, elements_view): Use
1649 (join_view, split_view): Use both.
1651 2020-02-25 Patrick Palka <ppalka@redhat.com>
1653 LWG 3397 basic_istream_view::iterator should not provide
1655 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
1657 (basic_istream_view:_Iterator::iterator_concept): ... this.
1658 * testsuite/std/ranges/istream_view.cc: Augment test.
1660 LWG 3325 Constrain return type of transformation function for
1662 * include/std/ranges (transform_view): Constrain the return type of the
1663 transformation function as per LWG 3325.
1664 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
1666 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
1667 * include/std/ranges (join_view::_Iterator::operator--): Require that
1668 range_reference_t<_Base> models common_range.
1669 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
1671 LWG 3301 transform_view::_Iterator has incorrect iterator_category
1672 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
1673 determination of iterator_category as per LWG 3301.
1674 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1676 LWG 3292 iota_view is under-constrained
1677 * include/std/ranges (iota_view): Require that _Winc models semiregular
1679 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
1681 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
1683 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
1684 during constant evaluation. Call __builtin_memmove directly instead of
1686 (__copy_or_move_backward): Likewise.
1687 * include/bits/stl_algobase.h (__memmove): Remove.
1688 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
1689 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
1690 Use __builtin_memmove directly instead of __memmove.
1691 (__copy_move_a2): Do not use memmove during constant evaluation.
1692 (__copy_move_backward_a2): Use _IsMove constant to select correct
1693 __copy_move_backward specialization.
1694 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
1695 begin turned into moves during constant evaluation.
1697 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
1701 * include/bits/stl_algobase.h (__memmove): Cast away const before
1702 doing move assignment.
1703 * testsuite/25_algorithms/move/93872.cc: New test.
1704 * testsuite/25_algorithms/move_backward/93872.cc: New test.
1706 2020-02-24 Patrick Palka <ppalka@redhat.com>
1709 * include/bits/ranges_algobase.h (__copy_or_move,
1710 __copy_or_move_backward): Don't inspect the iter_value_t of the output
1711 iterator, instead inspect its iterator_traits directly.
1712 * include/bits/stl_iterator.h (back_insert_iterator::container):
1713 Conditionally initialize.
1714 (back_insert_iterator::difference_type): Conditionally define.
1715 (back_insert_iterator::back_insert_iterator): Conditionally define this
1716 default constructor.
1717 (front_insert_iterator::container): Conditionally initialize.
1718 (front_insert_iterator::difference_type): Conditionally define.
1719 (front_insert_iterator::front_insert_iterator): Conditionally define
1720 this default constructor.
1721 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
1722 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
1724 P0769R2 Add shift to <algorithm>
1725 * include/bits/ranges_algo.h (shift_left, shift_right): New.
1726 * testsuite/25_algorithms/shift_left/1.cc: New test.
1727 * testsuite/25_algorithms/shift_right/1.cc: New test.
1729 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
1731 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1732 Make noexcept-specifier conditional.
1733 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
1736 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1738 (operator==(istream_iterator, default_sentinel_t)): Add operator.
1739 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
1740 * include/bits/streambuf_iterator.h
1741 (istreambuf_iterator(default_sentinel_t)): Add constructor.
1742 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
1743 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1745 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
1746 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1748 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1750 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
1751 (ranges::enable_view): Simplify (LWG 3326).
1752 * include/bits/range_access.h (ranges::enable_view): Declare.
1753 * include/bits/regex.h (__enable_view_impl): Remove partial
1755 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
1756 * include/bits/stl_set.h (__enable_view_impl): Likewise.
1757 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
1758 * include/debug/multiset.h (__enable_view_impl): Likewise.
1759 * include/debug/set.h (__enable_view_impl): Likewise.
1760 * include/debug/unordered_set (__enable_view_impl): Likewise.
1761 * include/experimental/string_view (ranges::enable_view): Define
1762 partial specialization.
1763 * include/std/span (ranges::enable_view): Likewise.
1764 * include/std/string_view (ranges::enable_view): Likewise.
1765 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
1767 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
1769 * include/std/optional (operator<=>(optional<T>, optional<U>))
1770 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
1772 * include/std/tuple (__tuple_cmp): New helper function for <=>.
1773 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
1774 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
1775 (operator<=>(monostate, monostate)): Define for C++20.
1776 * testsuite/20_util/optional/relops/three_way.cc: New test.
1777 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
1778 * testsuite/20_util/variant/89851.cc: Move to ...
1779 * testsuite/20_util/variant/relops/89851.cc: ... here.
1780 * testsuite/20_util/variant/90008.cc: Move to ...
1781 * testsuite/20_util/variant/relops/90008.cc: ... here.
1782 * testsuite/20_util/variant/relops/three_way.cc: New test.
1784 2020-02-20 Patrick Palka <ppalka@redhat.com>
1786 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
1788 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
1789 __maybe_refwrap to capture lvalue references by reference, and then use
1790 unwrap_reference_t to forward the by-reference captures as references.
1791 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1792 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
1794 * include/std/ranges (iota_view): Forward declare _Sentinel.
1795 (iota_view::_Iterator): Befriend _Sentinel.
1796 (iota_view::_Sentinel::_M_equal): New member function.
1797 (iota_view::_Sentinel::operator==): Use it.
1798 (views::_Iota::operator()): Forward __f using the correct type.
1799 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
1800 with integers of different signedness, to appease iota_view's deduction
1802 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
1804 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
1806 * include/bits/range_access.h (ranges::begin): Reject array of
1808 (ranges::end, ranges::size): Require arrays to be bounded.
1809 (ranges::data): Require lvalue or borrowed_range.
1810 (ranges::iterator_t): Remove constraint.
1811 * testsuite/std/ranges/access/begin.cc: Do not check array of
1813 * testsuite/std/ranges/access/begin_neg.cc: New test.
1814 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
1815 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
1816 * testsuite/std/ranges/access/ssize.cc: Do not check array of
1819 * include/std/system_error (error_category::operator<=>)
1820 (operator<=>(const error_code&, const error_code&))
1821 (operator<=>(const error_condition&, const error_condition&)): Define
1823 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
1824 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
1826 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
1828 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
1829 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
1831 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
1832 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
1834 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
1835 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
1836 Remove incorrect comment.
1837 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
1840 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
1842 * include/std/thread (thread::id::operator<=>): Define for C++20.
1843 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
1844 functions in namespace std.
1845 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
1847 2020-02-19 Patrick Palka <ppalka@redhat.com>
1849 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
1850 null terminator of the underlying string as part of the test_range.
1851 (main): Call test03.
1853 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
1855 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
1856 requirement (LWG 3385).
1857 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
1858 expected declaration.
1860 * include/std/ranges (take_while_view, drop_view, drop_while_view)
1861 (elements_view:_Iterator): Initialize data members (LWG 3364).
1863 * libsupc++/compare (three_way_comparable): Remove always-false check
1864 that should have been removed with weak_equality (P1959R0).
1865 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
1867 * include/std/concepts (__detail::__partially_ordered_with): Move here
1869 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
1870 to simplify definition (LWG 3331).
1871 * libsupc++/compare (__detail::__partially_ordered_with): Move to
1874 * include/std/concepts (totally_ordered_with): Remove redundant
1875 requirement (LWG 3329).
1877 * include/std/ranges (__detail::__convertible_to_non_slicing): New
1879 (__detail::__pair_like_convertible_to): Remove.
1880 (__detail::__pair_like_convertible_from): Add requirements for
1881 non-slicing conversions.
1882 (subrange): Constrain constructors with __convertible_to_non_slicing.
1883 Remove constructors from pair-like types. Add new deduction guide.
1884 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
1886 * include/bits/iterator_concepts.h (iter_move): Add declaration to
1887 prevent unqualified lookup finding a suitable declaration (LWG 3247).
1889 * include/std/memory_resource (polymorphic_allocator::allocate)
1890 (polymorphic_allocator::allocate_object): Change type of exception to
1891 bad_array_new_length (LWG 3237).
1892 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
1894 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
1895 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
1896 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
1897 * testsuite/20_util/unwrap_reference/3.cc: New test.
1899 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
1900 type during overload resolution, use static assert instead (LWG 3200).
1901 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
1903 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
1905 * include/std/span (span(T (&)[N])): Use non-deduced context to
1906 prevent first parameter from interfering with class template argument
1907 deduction (LWG 3369).
1908 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
1909 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
1912 * include/std/span (span::const_iterator, span::const_reverse_iterator)
1913 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
1915 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
1917 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1919 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
1920 constrained.cc: Likewise.
1921 * testsuite/20_util/specialized_algorithms/
1922 uninitialized_default_construct/constrained.cc: Likewise.
1923 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
1924 constrained.cc: Likewise.
1925 * testsuite/20_util/specialized_algorithms/uninitialized_move/
1926 constrained.cc: Likewise.
1927 * testsuite/20_util/specialized_algorithms/
1928 uninitialized_value_construct/constrained.cc: Likewise.
1930 * include/bits/range_access.h (range_size_t): Define alias template.
1931 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
1932 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
1934 * include/std/ranges (filter_view, transform_view, take_view)
1935 (join_view, split_view, reverse_view): Remove commented-out converting
1936 constructors (LWG 3280).
1938 * include/std/memory (uninitialized_construct_using_allocator): Use
1939 std::construct_at (LWG 3321).
1941 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
1942 (polymorphic_allocator::allocate_object)
1943 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
1945 LWG 3379. "safe" in several library names is misleading
1946 * include/bits/range_access.h (enable_safe_range): Rename to
1947 enable_borrowed_range.
1948 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
1949 (safe_range): Rename to borrowed_range.
1950 * include/bits/ranges_algo.h: Adjust to use new names.
1951 * include/bits/ranges_algobase.h: Likewise.
1952 * include/bits/ranges_uninitialized.h: Likewise.
1953 * include/std/ranges: Likewise.
1954 (safe_iterator_t): Rename to borrowed_iterator_t.
1955 (safe_subrange_t): Rename to borrowed_subrange_t.
1956 * include/std/span: Adjust to use new names.
1957 * include/std/string_view: Likewise.
1958 * include/experimental/string_view: Likewise.
1959 * testsuite/std/ranges/access/begin.cc: Likewise.
1960 * testsuite/std/ranges/access/cbegin.cc: Likewise.
1961 * testsuite/std/ranges/access/cdata.cc: Likewise.
1962 * testsuite/std/ranges/access/cend.cc: Likewise.
1963 * testsuite/std/ranges/access/crbegin.cc: Likewise.
1964 * testsuite/std/ranges/access/crend.cc: Likewise.
1965 * testsuite/std/ranges/access/data.cc: Likewise.
1966 * testsuite/std/ranges/access/end.cc: Likewise.
1967 * testsuite/std/ranges/access/rbegin.cc: Likewise.
1968 * testsuite/std/ranges/access/rend.cc: Likewise.
1969 * testsuite/std/ranges/safe_range.cc: Likewise.
1970 * testsuite/std/ranges/safe_range_types.cc: Likewise.
1971 * testsuite/util/testsuite_iterators.h: Likewise.
1973 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
1974 (tuple_element<1, const subrange<I, S, K>>): Add partial
1975 specializations (LWG 3398).
1976 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
1978 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1979 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
1980 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
1982 2020-02-18 Patrick Palka <ppalka@redhat.com>
1984 P1983R0 Wording for GB301, US296, US292, US291, and US283
1985 * include/std/ranges (filter_view::pred): New member function.
1986 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
1987 P1983R0 fixes the highlighted issue in the same way.
1988 (join_view::_Iterator<_Const>): Add friend
1989 join_view::_Iterator<!_Const>.
1990 (join_view::_M_inner): Remove mutable specifier, effectively reverting
1991 the proposed wording changes of P3278.
1992 (join_view::begin): Refine the condition for when to return a const
1994 (split_view::_OuterIter::_OuterIter): Adjust constraints.
1995 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
1998 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
2001 * include/std/ranges (_RangeAdaptor): Add deduction guide.
2002 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
2004 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
2005 (transform_view::_Iterator): Add alias _Base_iter and use in place of
2007 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
2008 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
2009 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
2010 (split_view::_InnerIter::_S_iter_cat()): Likewise.
2012 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
2013 assumption that long is wider than int.
2014 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
2015 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
2016 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
2017 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
2019 P1976R2 Fixed-size span construction from dynamic range
2020 * include/std/span (__cpp_lib_span): Update value.
2021 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
2023 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
2025 (span::first<Count>(), span::last<Count>()): Use explicit type in
2027 (as_bytes, as_writable_bytes): Likewise.
2028 * include/std/version (__cpp_lib_span): Update value.
2029 * testsuite/23_containers/span/1.cc: Check new value.
2030 * testsuite/23_containers/span/2.cc: Check new value.
2031 * testsuite/23_containers/span/explicit.cc: New test.
2033 * include/std/span (span::__is_compatible_array): Simplify alias
2034 template by using requires-clause.
2035 (span::__is_compatible_ref): New alias template for constraining
2037 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
2038 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
2039 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
2040 redundant parentheses.
2041 (span(R&&)): Add missing constraints.
2043 * include/std/span (span): Reorder members and rename template
2044 parameters to match declarations in the C++2a working paper.
2046 P2116R0 Remove tuple-like protocol support from fixed-extent span
2047 * include/std/span (get, tuple_size, tuple_element): Remove.
2048 * testsuite/23_containers/span/everything.cc: Remove checks for
2050 * testsuite/23_containers/span/get_neg.cc: Remove.
2051 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
2052 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
2053 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
2055 2020-02-17 Patrick Palka <ppalka@redhat.com>
2057 P2106R0 Alternative wording for GB315 and GB316
2058 * include/bits/ranges_algo.h (in_fun_result): New.
2059 (for_each_result, for_each_n_result): Change into an alias of
2061 (in_in_result): New.
2062 (mismatch_result): Change into an alias of in_in_result.
2063 (copy_if_result): Change into an alias of in_out_result.
2064 (swap_ranges_result): Change into an alias of in_in_result.
2065 (unary_transform_result): Change into an alias of in_out_result.
2066 (in_in_out_result): New.
2067 (binary_transform_result): Change into an alias of in_in_out_result.
2068 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
2069 remove_copy_result, unique_copy_result, reverse_copy_result,
2070 rotate_copy_result, partial_sort_copy_result): Change into an alias of
2072 (in_out_out_result): New.
2073 (partition_copy_result, merge_result): Change into an alias of
2075 (set_union_result, set_intersection_result): Change into an alias of
2077 (set_difference_result): Change into an alias of in_out_result.
2078 (set_symmetric_difference): Change into an alias of in_in_out_result.
2079 (min_max_result): New.
2080 (minmax_result, minmax_element_result): Change into an alias of
2082 (in_found_result): New.
2083 (next_permutation_result, prev_permutation_result): Change into an alias
2085 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
2086 Adjust following changes to next_permutation_result and
2087 prev_permutation_result.
2088 * include/bits/ranges_algobase.h (in_out_result): New.
2089 (copy_result, move_result, move_backward_result, copy_backward_result,
2090 copy_n_result): Change into an alias of in_out_result.
2091 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
2092 uninitialized_copy_n_result, uninitialized_move_result,
2093 uninitialized_move_n_result): Likewise.
2094 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
2095 structured bindings.
2096 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
2098 P1243R4 Rangify new algorithms
2099 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
2100 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
2101 * testsuite/25_algorithms/clamp/constrained.cc: New test.
2102 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
2103 * testsuite/25_algorithms/sample/constrained.cc: New test.
2105 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
2107 P1964R2 Wording for boolean-testable
2108 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2109 (__adjacent_find_fn): Cast result of predicate to bool.
2110 * include/std/concepts (__boolean): Remove.
2111 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
2112 new helper concepts.
2113 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
2114 (predicate): Use __boolean_testable instead of boolean.
2115 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
2118 P1970R2 Consistency for size() functions: Add ranges::ssize
2119 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
2120 * testsuite/std/ranges/access/ssize.cc: New test.
2122 P1956R1 On the names of low-level bit manipulation functions
2123 * include/bits/hashtable_policy.h: Update comment.
2124 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
2125 (ispow2, ceil2, floor2, log2p1): Likewise.
2126 (__cpp_lib_int_pow2): Add feature test macro.
2127 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
2128 * include/std/memory (assume_aligned): Adjust use of ispow2.
2129 * include/std/version (__cpp_lib_int_pow2): Add.
2130 * libsupc++/new_opa.cc: Adjust use of __ispow2.
2131 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
2132 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
2133 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
2134 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
2135 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
2136 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
2137 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
2138 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
2139 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
2140 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
2141 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
2142 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
2144 * include/std/charconv: Add comment.
2146 PR libstdc++/92546 (partial)
2147 * include/bits/random.h (uniform_random_bit_generator): Move definition
2148 to <bits/uniform_int_dist.h>.
2149 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
2151 * include/bits/ranges_algobase.h: Do not include <cmath>.
2152 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
2154 * include/std/ranges: Do not include <limits>.
2155 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2157 PR libstdc++/92546 (partial)
2158 * include/Makefile.am: Add new header.
2159 * include/Makefile.in: Regenerate.
2160 * include/bits/int_limits.h: New header.
2161 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
2162 numeric_limits with __detail::__int_limits.
2163 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2164 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
2166 * include/std/charconv (__to_chars_8, __from_chars_binary)
2167 (__from_chars_alpha_to_num, from_chars): Likewise.
2168 * include/std/memory_resource (polymorphic_allocator::allocate)
2169 (polymorphic_allocator::allocate_object): Likewise.
2170 * include/std/string_view (basic_string_view::_S_compare): Likewise.
2171 * include/std/utility (in_range): Likewise.
2172 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
2173 extra error about incomplete type __int_limits<bool>.
2174 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
2175 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
2176 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
2177 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
2178 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
2179 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
2180 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
2181 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
2182 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
2183 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
2184 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
2185 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
2187 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
2188 value for partial_ordering::unordered.
2190 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
2191 const-qualified expression variations.
2192 * include/std/concepts (copyable): Likewise.
2194 * include/std/type_traits (__is_standard_integer): New helper trait.
2195 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
2196 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
2197 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
2198 * testsuite/20_util/integer_comparisons/1.cc: New test.
2199 * testsuite/20_util/integer_comparisons/2.cc: New test.
2200 * testsuite/20_util/integer_comparisons/equal.cc: New test.
2201 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
2202 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
2203 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
2204 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
2205 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
2206 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
2207 * testsuite/20_util/integer_comparisons/less.cc: New test.
2208 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
2209 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
2210 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
2211 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
2212 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
2214 2020-02-16 Patrick Palka <ppalka@redhat.com>
2216 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
2217 Move code after an early exit constexpr if to under an else branch.
2218 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
2220 2020-02-15 Patrick Palka <ppalka@redhat.com>
2222 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
2223 * include/bits/ranges_algobase.h: Likewise.
2224 * include/bits/ranges_uninitialized.h: Likewise.
2226 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
2227 binary_search, copy_if, count, count_if, equal_range, find, find_end,
2228 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
2229 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
2230 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
2231 lower_bound, make_heap, max, max_element, merge, min, min_element,
2232 minmax, minmax_element, mismatch, next_permutation, none_of,
2233 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
2234 partition_point, pop_heap, prev_permutation, push_heap, remove,
2235 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
2236 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
2237 search, search_n, set_difference, set_intersection,
2238 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
2239 stable_partition, stable_sort, swap_ranges, transform, unique,
2240 unique_copy, upper_bound): Convert into function objects.
2241 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
2242 fill, move_backward, copy_backward): Likewise.
2243 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
2244 uninitialized_default_construct_n, uninitialized_value_construct,
2245 uninitialized_value_construct_n, uninitialized_copy,
2246 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
2247 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
2248 destroy, destroy_n): Likewise.
2250 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
2251 (ranges::find_end): ... here.
2252 (ranges::__lexicographical_compare): Fold into ...
2253 (ranges::lexicographical_compare): ... here.
2254 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
2255 (ranges::equal): ... here.
2257 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2259 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
2260 * include/std/deque: Likewise.
2261 * include/std/forward_list: Likewise.
2262 * include/std/list: Likewise.
2263 * include/std/string: Likewise.
2264 * include/std/vector: Likewise.
2265 * include/std/version: Likewise.
2266 * testsuite/23_containers/deque/erasure.cc: Test for new value.
2267 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
2268 * testsuite/23_containers/list/erasure.cc: Likewise.
2269 * testsuite/23_containers/map/erasure.cc: Likewise.
2270 * testsuite/23_containers/set/erasure.cc: Likewise.
2271 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2272 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2273 * testsuite/23_containers/vector/erasure.cc: Likewise.
2275 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2277 * include/bits/random.h (uniform_random_bit_generator): Require min()
2278 and max() to be constant expressions and min() to be less than max().
2279 * testsuite/26_numerics/random/concept.cc: Check additional cases.
2280 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2282 2020-02-13 Patrick Palka <ppalka@redhat.com>
2284 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
2285 * include/Makefile.in: Regenerate.
2286 * include/bits/ranges_uninitialized.h: New header.
2287 * include/std/memory: Include it.
2288 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
2290 * .../uninitialized_copy/constrained.cc: New test.
2291 * .../uninitialized_default_construct/constrained.cc: New test.
2292 * .../uninitialized_fill/constrained.cc: New test.
2293 * .../uninitialized_move/constrained.cc: New test.
2294 * .../uninitialized_value_construct/constrained.cc: New test.
2296 * include/Makefile.am: Add bits/ranges_algobase.h
2297 * include/Makefile.in: Regenerate.
2298 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
2300 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
2301 __detail::__is_move_iterator, copy_result, move_result,
2302 __equal, equal, copy_result, move_result, move_backward_result,
2303 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
2304 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
2305 fill): Split out into ...
2306 * bits/range_algobase.h: ... this new header.
2308 2020-02-12 Patrick Palka <ppalka@redhat.com>
2310 LWG 3389 and LWG 3390
2311 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
2312 constructing the move_iterator with __i.
2313 (counted_iterator::counted_iterator): Use std::move when initializing
2315 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
2316 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
2318 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
2323 * configure: Regenerated.
2325 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
2327 * include/bits/hashtable.h
2328 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
2329 missing std namespace qualification to forward call.
2331 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
2333 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
2335 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
2337 * include/std/ranges: Fix non-ASCII characters in comment.
2339 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
2340 equality comparison to be valid and return bool.
2341 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
2342 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
2343 type with ambiguous conversion to fundamental types.
2344 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
2346 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2348 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
2350 (readable_traits): Rename to indirectly_readable_traits.
2351 (readable): Rename to indirectly_readable.
2352 (writable): Rename to indirectly_writable.
2353 (__detail::__iter_exchange_move): Do not use remove_reference_t.
2354 (indirectly_swappable): Adjust requires expression parameter types.
2356 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
2357 (ranges::replace_if, ranges::generate_n, ranges::generate)
2358 (ranges::remove): Use new name for writable.
2359 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
2360 Use new name for readable.
2361 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
2362 new name for readable_traits.
2363 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
2364 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
2365 new definition of indirectly_readable.
2367 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
2368 to take parameters of common_iterator, instead of the common_iterator
2369 type itself. Fix argument for __common_iter_has_arrow constraint.
2370 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
2372 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2374 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
2376 (basic_istream_view::_Iterator::operator++()): Add missing return.
2378 2020-02-07 Patrick Palka <ppalka@redhat.com>
2380 * include/bits/ranges_algo.h: Remove extraneous &&.
2382 * include/std/ranges (ranges::__detail::__stream_extractable,
2383 ranges::basic_istream_view, ranges::istream_view): Define.
2384 * testsuite/std/ranges/istream_view: New test.
2386 Implement C++20 range adaptors
2387 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
2388 (subrange::_S_store_size): Mark as const instead of constexpr to
2389 avoid what seems to be a bug in GCC.
2390 (__detail::__box): Give it defaulted copy and move constructors.
2391 (ranges::views::_Single::operator()): Mark constexpr.
2392 (ranges::views::_Iota::operator()): Mark constexpr.
2393 (__detail::Empty): Define.
2394 (ranges::views::__closure::_RangeAdaptor,
2395 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
2396 ranges::views::all, ranges::__detail::find_if,
2397 ranges::__detail::find_if_not, ranges::__detail::mismatch,
2398 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
2399 ranges::views::transform, take_view, ranges::views::take,
2400 take_while_view, ranges::views::take_while, drop_view,
2401 ranges::views::drop, join_view, ranges::views::join,
2402 __detail::require_constant, __detail::tiny_range, split_view,
2403 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
2404 common_view, ranges::views::common, reverse_view,
2405 ranges::views::reverse,
2406 ranges::views::__detail::__is_reversible_subrange,
2407 ranges::views::__detail::__is_reverse_view, reverse_view,
2408 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
2409 ranges::views::elements, ranges::views::keys, ranges::views::values):
2411 (views): Alias for ranges::views.
2412 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
2413 tuple_element<1, ranges::subrange>): New partial specializations.
2414 * testsuite/std/ranges/adaptors/all.cc: New test.
2415 * testsuite/std/ranges/adaptors/common.cc: Likewise.
2416 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2417 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2418 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2419 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2420 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2421 * testsuite/std/ranges/adaptors/join.cc: Likewise.
2422 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2423 * testsuite/std/ranges/adaptors/split.cc: Likewise.
2424 * testsuite/std/ranges/adaptors/take.cc: Likewise.
2425 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2426 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2428 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2430 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
2431 type of enumerations and comparison category types.
2432 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
2433 (__cmp_cat::_Ncmp::unordered): Change value to 2.
2434 (partial_ordering::_M_value, weak_ordering::_M_value)
2435 (strong_ordering::_M_value): Change type to __cmp_cat::type.
2436 (partial_ordering::_M_is_ordered): Remove data member.
2437 (partial_ordering): Use second bit of _M_value for unordered. Adjust
2438 comparison operators.
2439 (weak_ordering::operator partial_ordering): Simplify to remove
2441 (operator<=>(unspecified, weak_ordering)): Likewise.
2442 (strong_ordering::operator partial_ordering): Likewise.
2443 (strong_ordering::operator weak_ordering): Likewise.
2444 (operator<=>(unspecified, strong_ordering)): Likewise.
2445 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
2446 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
2447 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
2449 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
2450 __cpp_lib_three_way_comparison macro and use deduced return type for
2452 * testsuite/std/ranges/iota/iterator.cc: New test.
2454 2020-02-07 Patrick Palka <ppalka@redhat.com>
2455 Jonathan Wakely <jwakely@redhat.com>
2457 Implement C++20 constrained algorithms
2458 * include/Makefile.am: Add new header.
2459 * include/Makefile.in: Regenerate.
2460 * include/std/algorithm: Include <bits/ranges_algo.h>.
2461 * include/bits/ranges_algo.h: New file.
2462 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
2463 * testsuite/25_algorithms/all_of/constrained.cc: New test.
2464 * testsuite/25_algorithms/any_of/constrained.cc: New test.
2465 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
2466 * testsuite/25_algorithms/copy/constrained.cc: New test.
2467 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
2468 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
2469 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
2470 * testsuite/25_algorithms/count/constrained.cc: New test.
2471 * testsuite/25_algorithms/count_if/constrained.cc: New test.
2472 * testsuite/25_algorithms/equal/constrained.cc: New test.
2473 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
2474 * testsuite/25_algorithms/fill/constrained.cc: New test.
2475 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
2476 * testsuite/25_algorithms/find/constrained.cc: New test.
2477 * testsuite/25_algorithms/find_end/constrained.cc: New test.
2478 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
2479 * testsuite/25_algorithms/find_if/constrained.cc: New test.
2480 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
2481 * testsuite/25_algorithms/for_each/constrained.cc: New test.
2482 * testsuite/25_algorithms/generate/constrained.cc: New test.
2483 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
2484 * testsuite/25_algorithms/heap/constrained.cc: New test.
2485 * testsuite/25_algorithms/includes/constrained.cc: New test.
2486 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
2487 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
2488 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
2489 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
2490 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
2491 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
2493 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
2494 * testsuite/25_algorithms/max/constrained.cc: New test.
2495 * testsuite/25_algorithms/max_element/constrained.cc: New test.
2496 * testsuite/25_algorithms/merge/constrained.cc: New test.
2497 * testsuite/25_algorithms/min/constrained.cc: New test.
2498 * testsuite/25_algorithms/min_element/constrained.cc: New test.
2499 * testsuite/25_algorithms/minmax/constrained.cc: New test.
2500 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
2501 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
2502 * testsuite/25_algorithms/move/constrained.cc: New test.
2503 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
2504 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
2505 * testsuite/25_algorithms/none_of/constrained.cc: New test.
2506 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
2507 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
2508 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
2509 * testsuite/25_algorithms/partition/constrained.cc: New test.
2510 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
2511 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
2512 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
2513 * testsuite/25_algorithms/remove/constrained.cc: New test.
2514 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
2515 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
2516 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
2517 * testsuite/25_algorithms/replace/constrained.cc: New test.
2518 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
2519 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
2520 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
2521 * testsuite/25_algorithms/reverse/constrained.cc: New test.
2522 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
2523 * testsuite/25_algorithms/rotate/constrained.cc: New test.
2524 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
2525 * testsuite/25_algorithms/search/constrained.cc: New test.
2526 * testsuite/25_algorithms/search_n/constrained.cc: New test.
2527 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
2528 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2529 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2531 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2532 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2533 * testsuite/25_algorithms/sort/constrained.cc: New test.
2534 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2535 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2536 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2537 * testsuite/25_algorithms/transform/constrained.cc: New test.
2538 * testsuite/25_algorithms/unique/constrained.cc: New test.
2539 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2540 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2542 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2544 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
2545 number in comment. Fix indentation.
2547 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
2548 redundant _GLIBCXX20_CONSTEXPR.
2550 * include/std/ranges (viewable_range): Replace decay_t with
2551 remove_cvref_t (LWG 3375).
2553 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
2555 * include/bits/iterator_concepts.h (iter_reference_t)
2556 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
2557 Remove workarounds for PR c++/67704.
2558 * testsuite/24_iterators/aliases.cc: New test.
2560 2020-02-05 Patrick Palka <ppalka@redhat.com>
2562 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
2563 when initializing _M_current.
2564 (move_iterator::base): Split into two overloads differing in
2565 ref-qualifiers as in P1207R4 for C++20.
2567 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
2569 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
2573 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
2574 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
2575 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
2577 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
2579 * configure: Regenerate.
2581 2020-01-31 Patrick Palka <ppalka@redhat.com>
2583 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
2584 test_range::end() returns the same type as test_range::begin().
2585 * testsuite/24_iterators/range_operations/next.cc: Likewise.
2586 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
2587 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
2588 Always return a sentinel<I>.
2590 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
2593 * include/std/stop_token (stop_token::stop_possible()): Call new
2594 _M_stop_possible() function.
2595 (stop_token::stop_requested()): Do not use stop_possible().
2596 (stop_token::binary_semaphore): New class, as temporary stand-in for
2597 std::binary_semaphore.
2598 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
2599 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
2600 New data members for symchronization with stop_callback destruction.
2601 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
2602 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
2604 (stop_token::_Stop_cb::_M_run): New member function.
2605 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
2607 (stop_token::_Stop_state::_M_owners): New data member to track
2608 reference count for ownership.
2609 (stop_token::_Stop_state::_M_value): New data member combining a
2610 spinlock, the stop requested flag, and the reference count for
2611 associated stop_source objects.
2612 (stop_token::_Stop_state::_M_requester): New data member for
2613 synchronization with stop_callback destruction.
2614 (stop_token::_Stop_state::_M_stop_possible()): New member function.
2615 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
2617 (stop_token::_Stop_state::_M_add_owner)
2618 (stop_token::_Stop_state::_M_release_ownership)
2619 (stop_token::_Stop_state::_M_add_ssrc)
2620 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
2621 updating reference counts.
2622 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2623 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2624 (stop_token::_Stop_state::_M_try_lock)
2625 (stop_token::_Stop_state::_M_try_lock_and_stop)
2626 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
2628 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
2629 read and update state. Release lock while running callbacks. Use new
2630 data members to synchronize with callback destruction.
2631 (stop_token::_Stop_state::_M_remove_callback): Likewise.
2632 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
2633 to read and update state.
2634 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
2635 replacing shared_ptr.
2636 (stop_source::stop_source(const stop_source&)): Update reference count.
2637 (stop_source::operator=(const stop_source&)): Likewise.
2638 (stop_source::~stop_source()): Likewise.
2639 (stop_source::stop_source(stop_source&&)): Define as defaulted.
2640 (stop_source::operator=(stop_source&&)): Establish postcondition on
2642 (stop_callback): Enforce preconditions on template parameter. Replace
2643 base class with data member of new _Cb_impl type.
2644 (stop_callback::stop_callback(const stop_token&, Cb&&))
2645 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
2646 (stop_callback::_Cb_impl): New type wrapping _Callback member and
2647 defining the _S_execute member function.
2648 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
2650 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
2651 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
2652 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
2654 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
2656 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
2657 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
2658 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
2661 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
2662 three_way_comparable_with.
2663 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
2664 (compare_three_way::operator()): Remove redundant constraint from
2666 (__detail::_Synth3way::operator()): Use three_way_comparable_with
2667 instead of workaround.
2668 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
2669 output due to simplified constraints on compare_three_way::operator().
2672 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
2673 * testsuite/18_support/comparisons/object/93479.cc: New test.
2675 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
2676 returns the same type as test_range::begin(). Add comments.
2677 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2678 * testsuite/std/ranges/access/rend.cc: Likewise.
2679 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
2680 test_range is the same as its iterator type.
2681 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
2682 operator- overloads to satisfy sized_sentinel_for when the iterator
2683 satisfies random_access_iterator.
2685 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
2688 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
2689 static assertion to object types.
2692 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
2693 clock_gettime instead of explicit glibc version check.
2694 * configure: Regenerate.
2696 2020-01-28 Martin Liska <mliska@suse.cz>
2699 * include/std/atomic: Fix typo.
2700 * include/std/optional: Likewise.
2702 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
2704 * configure: Regenerate.
2706 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
2709 * include/std/span (span): Fix deduction guide.
2710 * testsuite/23_containers/span/deduction.cc: New test.
2712 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
2714 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
2715 (__cmp_cat::_Ord::equivalent): Add enumerator.
2716 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
2718 (partial_ordering, weak_ordering, strong_ordering): Remove
2719 constructors taking __cmp_cat::_Eq parameters. Use renamed
2722 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
2724 * acinclude.m4: Handle `--with-toolexeclibdir='.
2725 * Makefile.in: Regenerate.
2726 * aclocal.m4: Regenerate.
2727 * configure: Regenerate.
2728 * doc/Makefile.in: Regenerate.
2729 * include/Makefile.in: Regenerate.
2730 * libsupc++/Makefile.in: Regenerate.
2731 * po/Makefile.in: Regenerate.
2732 * python/Makefile.in: Regenerate.
2733 * src/Makefile.in: Regenerate.
2734 * src/c++11/Makefile.in: Regenerate.
2735 * src/c++17/Makefile.in: Regenerate.
2736 * src/c++98/Makefile.in: Regenerate.
2737 * src/filesystem/Makefile.in: Regenerate.
2738 * testsuite/Makefile.in: Regenerate.
2740 2020-01-23 Alexandre Oliva <oliva@adacore.com>
2742 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
2743 * configure: Rebuild.
2745 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
2747 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
2750 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
2752 * include/Makefile.in: Regenerate.
2754 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
2756 * doc/xml/faq.xml: Fix grammar.
2757 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
2758 * doc/xml/manual/spine.xml: Update copyright years.
2759 * doc/html/*: Regenerate.
2761 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
2763 * doc/xml/faq.xml: Update for SVN -> Git transition.
2764 * doc/xml/manual/appendix_contributing.xml: Likewise.
2765 * doc/xml/manual/status_cxx1998.xml: Likewise.
2766 * doc/xml/manual/status_cxx2011.xml: Likewise.
2767 * doc/xml/manual/status_cxx2014.xml: Likewise.
2768 * doc/xml/manual/status_cxx2017.xml: Likewise.
2769 * doc/xml/manual/status_cxx2020.xml: Likewise.
2770 * doc/xml/manual/status_cxxtr1.xml: Likewise.
2771 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
2773 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
2775 * include/Makefile.am: Add coroutine to the std set.
2776 * include/Makefile.in: Regenerated.
2777 * include/std/coroutine: New file.
2779 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
2782 * include/bits/c++config: Only do PSTL config when the header is
2783 present, to fix freestanding.
2784 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
2785 functions if they were detected by configure.
2787 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
2788 Matthew Bauer <mjbauer95@gmail.com>
2789 Jonathan Wakely <jwakely@redhat.com>
2791 PR bootstrap/64271 (partial)
2792 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
2794 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
2795 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
2796 definitions with NetBSD upstream.
2797 (ctype_base::blank): Use _CTYPE_BL.
2798 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
2800 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
2801 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
2802 parameters to unsigned char.
2803 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
2805 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
2808 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
2809 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
2810 (_Equality_base): Remove.
2811 (_Equality<>::_M_equal): Review implementation. Use
2812 std::is_permutation.
2813 * testsuite/23_containers/unordered_multiset/operators/1.cc
2814 (Hash, Equal, test02, test03): New.
2815 * testsuite/23_containers/unordered_set/operators/1.cc
2816 (Hash, Equal, test02, test03): New.
2818 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
2821 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
2822 Move here from <bits/range_access.h> and define using __int128 when
2824 (__is_integer_like, __is_signed_integer_like): Move here from
2825 <bits/range_access.h>.
2826 (weakly_incrementable): Use __is_signed_integer_like.
2827 * include/bits/range_access.h (__max_diff_type, __max_size_type)
2828 (__is_integer_like, __is_signed_integer_like): Move to
2829 <bits/iterator_concepts.h>.
2830 (__make_unsigned_like_t): Move here from <ranges>.
2831 * include/std/ranges (__make_unsigned_like_t): Move to
2832 <bits/range_access.h>.
2833 (iota_view): Replace using-directive with using-declarations.
2834 * testsuite/std/ranges/iota/93267.cc: New test.
2835 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
2837 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
2840 * include/bits/fs_path.h (path::generic_string<C,A>)
2841 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
2842 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
2843 root-dir is converted to forward slash in generic pathname.
2844 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
2845 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
2848 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
2850 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
2851 (__atomic_float): Add default member initializer for C++20.
2852 * include/std/atomic (atomic): Likewise.
2853 (atomic::atomic()): Remove noexcept-specifier on default constructor.
2854 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
2855 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
2857 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2858 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
2859 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
2860 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
2861 expected result for is_trivially_default_constructible.
2862 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2863 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
2864 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
2865 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2866 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
2867 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
2868 expected results for is_trivially_default_constructible.
2869 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
2872 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
2874 * testsuite/util/testsuite_iterators.h: Improve comment.
2876 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
2877 initialization syntax.
2880 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
2881 of base class independent of __cplusplus value.
2882 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
2883 type defined in the base class
2884 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
2885 * testsuite/24_iterators/istreambuf_iterator/requirements/
2886 base_classes.cc: Adjust expected base class for C++98.
2888 2020-01-09 Olivier Hainque <hainque@adacore.com>
2890 * doc/xml/manual/appendix_contributing.xml: Document _C2
2891 as a reserved identifier, by VxWorks.
2892 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
2893 * include/bits/stl_multimap.h: Likewise.
2895 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2897 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
2898 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
2899 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
2900 partial specialization to disambiguate the two constrained
2903 * include/experimental/type_traits (experimental::is_pod_v): Disable
2904 -Wdeprecated-declarations warnings around reference to std::is_pod.
2905 * include/std/type_traits (is_pod_v): Likewise.
2906 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
2907 is_standard_layout and is_trivial. Do not check is_pod for C++20.
2908 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
2909 Add -Wno-deprecated for C++20.
2910 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
2911 * testsuite/20_util/is_pod/value.cc: Likewise.
2912 * testsuite/experimental/type_traits/value.cc: Likewise.
2914 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
2916 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
2917 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
2918 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
2920 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2923 * include/bits/random.h (operator>>): Check stream operation succeeds.
2924 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
2926 (operator>>): Remove redundant __istream_type typedefs. Check stream
2928 (__extract_params): New function to fill a vector from a stream.
2929 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
2932 * config/abi/pre/gnu.ver: Add new exports.
2933 * include/std/memory_resource (memory_resource::~memory_resource()):
2934 Do not define inline.
2935 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
2936 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
2938 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
2939 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
2941 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
2944 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
2946 (_Hashtable<>::__fwd_value_for): New.
2947 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
2949 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
2950 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
2951 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
2953 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
2954 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
2956 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
2958 * testsuite/23_containers/unordered_set/92124.cc: New.
2960 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
2963 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
2964 detailed error reporting for remove_all. Check result of recursive
2965 call before incrementing iterator.
2966 (remove_all(const path&), remove_all(const path&, error_code&)): Use
2968 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
2969 result of recursive call before incrementing iterator.
2970 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
2971 are reported correctly.
2972 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
2974 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
2976 * include/std/condition_variable
2977 (condition_variable_any::wait_on): Rename to match current draft
2979 (condition_variable_any::wait_on_until): Likewise.
2980 (condition_variable_any::wait_on_for): Likewise.
2981 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
2982 Adjust tests to account for renamed methods.
2984 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
2987 * include/bits/stl_tree.h
2988 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
2989 std::move_if_noexcept by std::move.
2990 * testsuite/23_containers/map/92124.cc: New.
2991 * testsuite/23_containers/set/92124.cc: New.
2993 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
2995 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
2996 (stop_source): Likewise (LWG 3362).
2997 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
3000 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
3001 (lexicographical_compare_three_way): Do not depend on
3003 * include/std/version (__cpp_lib_three_way_comparison): Only define
3004 when __cpp_lib_concepts is defined.
3005 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3007 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
3009 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3010 Only define four-argument overload when __cpp_lib_concepts is defined.
3012 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
3014 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
3016 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3018 Update copyright years.
3020 Copyright (C) 2020 Free Software Foundation, Inc.
3022 Copying and distribution of this file, with or without modification,
3023 are permitted in any medium without royalty provided the copyright
3024 notice and this notice are preserved.