1 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
3 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
5 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
7 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
9 * include/bits/unique_ptr.h (operator<<): Define for C++20.
10 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
12 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
14 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
15 (__detail::__cat, __detail::__diff): Move to class scope in the
16 relevant __iterator_traits specializations.
17 (__iterator_traits<>): Use nested class templates instead of ones from
19 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
20 class scope in iterator_traits<common_iterator<I, S>>.
21 (iterator_traits<common_iterator<I, S>>): Use nested class template
22 instead of __detail::__common_iter_ptr.
24 2020-06-04 François Dumont <fdumont@gcc.gnu.org>
26 * include/bits/stl_algo.h (__copy_n_a): Move to ...
27 * include/bits/stl_algobase.h (__copy_n_a): ...here. Add __strict
29 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
31 (__niter_base(const _Safe_iterator<_Ite, _Seq,
32 random_access_iterator_tag>&)): Declare.
33 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
34 _Deque_iterator<>)): Declare.
35 * include/bits/deque.tcc
36 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
37 _Deque_iterator<>)): New.
38 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
40 * include/bits/streambuf_iterator.h
41 (__copy_n_a(istreambuf_iterator<>, _Size, _CharT*, bool)): Adapt.
42 * include/debug/safe_iterator.tcc (__niter_base): New.
43 * testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc
45 * testsuite/25_algorithms/copy/streambuf_iterators/char/debug/deque_neg.cc:
47 * testsuite/25_algorithms/copy_n/debug/istreambuf_ite_deque_neg.cc:
49 * testsuite/25_algorithms/copy_n/istreambuf_iterator/2.cc: New test.
50 * testsuite/25_algorithms/copy_n/istreambuf_iterator/deque.cc:
53 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
55 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
56 ranges::copy for positive values.
57 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
58 integral type and only call __copy_n for positive values.
59 * testsuite/util/testsuite_iterators.h
60 (random_access_iterator_wrapper::operator+=): Fix range check for
62 (output_container, input_container, forward_container)
63 (bidirectional_container, random_access_container): New alias
65 * testsuite/25_algorithms/copy_n/5.cc: New test.
67 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
70 * include/debug/deque (deque(const _Base&)): Replace parameter
71 with a struct that wraps a const _Base&.
72 * include/debug/forward_list (forward_list(_Base_ref)): New
74 * include/debug/list (list(const _Base&)): Replace parameter
75 with a struct that wraps a const _Base&.
76 * include/debug/map.h (map(const _Base&)): Likewise.
77 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
78 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
79 * include/debug/set.h (set(const _Base&)): Likewise.
80 * include/debug/unordered_map (unordered_map(const _Base&))
81 (unordered_multimap(const _Base&)): Likewise.
82 * include/debug/unordered_set (unordered_set(const _Base&))
83 (unordered_multiset(const _Base&)): Likewise.
84 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
85 Adjust dg-error line number.
86 * include/debug/vector (vector(const _Base&)): Likewise.
87 * testsuite/23_containers/deque/debug/90102.cc: New test.
88 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
89 * testsuite/23_containers/list/debug/90102.cc: New test.
90 * testsuite/23_containers/map/debug/90102.cc: New test.
91 * testsuite/23_containers/multimap/debug/90102.cc: New test.
92 * testsuite/23_containers/multiset/debug/90102.cc: New test.
93 * testsuite/23_containers/set/debug/90102.cc: New test.
94 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
95 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
96 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
97 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
98 * testsuite/23_containers/vector/debug/90102.cc: New test.
100 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
103 * include/bits/fs_path.h (path::_S_to_string): Move to
104 namespace-scope and rename to ...
105 (__detail::__string_from_range): ... this.
106 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
107 convert a char sequence containing UTF-8 to wstring.
108 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
109 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
110 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
111 __string_from_range to obtain a contiguous range and
112 __wstr_from_utf8 to obtain a wide string.
113 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
114 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
116 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
117 Use __wstr_from_utf8.
119 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
121 * testsuite/util/testsuite_iterators.h:
122 (input_iterator_wrapper::operator++(int)): Return proxy object.
124 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
126 * doc/xml/manual/evolution.xml: Document deprecation of
127 __is_nullptr_t and removal of std::allocator members.
128 * doc/html/manual/api.html: Regenerate.
130 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
132 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
133 * doc/xml/manual/evolution.xml: Likewise.
134 * doc/html/manual/api.html: Regenerate.
135 * doc/html/manual/containers.html: Regenerate.
137 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
139 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
140 * doc/html/faq.html: Regenerate.
142 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
144 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
147 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
149 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
150 www.cs.princeton.edu to https.
151 * doc/html/manual/policy_data_structures.html: Regenerate.
153 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
155 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
156 * configure: Rebuild.
158 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
161 * configure: Regenerated.
163 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
166 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
167 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
168 (unordered_map<>::insert_or_assign): Adapt.
170 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
173 * include/bits/atomic_base.h (__atomic_impl::load): Add
174 cv-qualifiers to parameter so that _Tp is deduced as the
176 * testsuite/29_atomics/atomic_float/95282.cc: New test.
178 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
181 * include/std/ranges (transform_view::_Sentinel): Allow hidden
182 friends to work with _Iterator<true> and _Iterator<false>.
183 (join_view::_Sentinel): Likewise.
184 * testsuite/std/ranges/adaptors/95322.cc: New test.
186 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
189 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
190 operators to use the correct operations on the underlying
192 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
194 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
196 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
198 2020-05-26 Patrick Palka <ppalka@redhat.com>
201 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
202 Remove and instead define it ...
203 (common_iterator::_Proxy): ... here.
204 (common_iterator::operator->): Use it.
205 * testsuite/24_iterators/common_iterator/2.cc: New test.
206 * testsuite/std/ranges/adaptors/95322.cc: New test.
208 2020-05-23 Patrick Palka <ppalka@redhat.com>
211 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
212 dg-additional-options. Avoid unused-but-set-variable warning.
214 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
217 * include/debug/helper_functions.h (__get_distance): Only declare
218 as a constexpr function for C++14 and up.
219 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
221 * include/bits/fs_path.h (__detail::_S_range_begin)
222 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
223 overloaded function template __detail::__effective_range.
224 (__detail::__effective_range): New overloaded function template to
225 create a basic_string or basic_string_view for an effective range.
226 (__detail::__value_type_is_char): Use __detail::__effective_range.
227 Do not use remove_const on value type.
228 (__detail::__value_type_is_char_or_char8_t): Likewise.
229 (path::path(const Source&, format))
230 (path::path(const Source&, const locale&))
231 (path::operator/=(const Source&), path::append(const Source&))
232 (path::concat(const Source&)): Use __detail::__effective_range.
233 (path::_S_to_string(InputIterator, InputIterator)): New function
234 template to create a string view if possible, or string otherwise.
235 (path::_S_convert): Add overloads that convert a string returned
236 by __detail::__effective_range. Use if-constexpr to inline conversion
237 logic from all overloads of _Cvt::_S_convert.
238 (path::_S_convert_loc): Add overload that converts a string. Use
239 _S_to_string to avoid allocation when possible.
240 (path::_Cvt): Remove.
241 (path::operator+=(CharT)): Remove indirection through path::concat.
242 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
243 overload for non-const pointers, to avoid constructing a std::string.
244 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
245 compilation with call to _S_convert.
247 * include/bits/fs_path.h (__detail::_S_range_begin)
248 (__detail::_S_range_end): Remove unintentional static specifiers.
249 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
250 (__detail::_S_range_end): Likewise.
252 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
253 Replace alias template with variable template. Don't remove const.
254 (filesystem::__detail::__is_path_src): Replace overloaded function
255 template with variable template and specializations.
256 (filesystem::__detail::__is_path_iter_src): Replace alias template
258 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
260 (filesystem::__detail::_Path2): New alias template for checking
261 InputIterator requirements.
262 (filesystem::__detail::__constructible_from): Remove.
263 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
264 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
265 constructor arguments of void and void* types.
267 2020-05-21 Matthias Kretz <kretz@kde.org>
269 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
270 allowing runtest to work without arguments.
271 * testsuite/Makefile.in: Regenerate.
273 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
276 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
277 Reorder constraints to avoid recursion when constructors use
278 iterator_traits (LWG 3420).
279 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
281 * include/experimental/socket (basic_socket::is_open()
282 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
284 * include/experimental/bits/net.h (__endpoint, __protocol)
285 (__acceptable_protocol, __inet_protocol): New concepts.
286 (__detail::__is_endpoint): Move trait from <experimental/socket>.
287 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
289 (__endpoint, __protocol, __acceptable_protocol): New variable
291 * include/experimental/socket (__is_endpoint): Move to net.h header.
292 (basic_socket, basic_socket_acceptor): Check requirements.
294 * include/experimental/executor (use_future_t::use_future_t()): Fix
295 incorrect noexcept-specifier.
296 * include/experimental/internet (basic_resolver_results): Adjust
298 * include/experimental/socket (__basic_socket_impl::release): Add
300 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
302 (basic_socket::release(), basic_socket::release(error_code&)): Add
303 missing member functions.
304 (basic_socket::is_open()): Add nodiscard attribute.
305 (basic_socket::close(error_code&)): Pass argument to base function.
306 (basic_socket_acceptor::release())
307 (basic_socket_acceptor::release(error_code&)): Add missing member
309 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
310 (basic_socket_streambuf::error()): Add noexcept.
311 (basic_socket_iostream::error()): Likewise.
312 * testsuite/experimental/net/socket/basic_socket.cc: New test.
314 * include/experimental/buffer: Replace typedefs with
316 * include/experimental/executor: Likewise.
317 * include/experimental/internet: Likewise.
318 * include/experimental/socket: Likewise.
319 * include/experimental/timer: Likewise.
321 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
324 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
326 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
328 (random_device::_M_init): Use __x86_rdseed_rdrand when both
329 instructions are available.
330 * testsuite/26_numerics/random/random_device/94087.cc: New test.
332 2020-05-19 Patrick Palka <ppalka@redhat.com>
335 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
337 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
339 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
342 * configure: Regenerated.
344 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
346 * configure: Regenerated.
348 2020-05-13 Alexandre Oliva <oliva@adacore.com>
351 * include/experimental/memory_resource
352 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
353 x86-vxworks as on x86-solaris.
354 (__resource_adaptor_imp::do_deallocate): Likewise.
355 * testsuite/experimental/memory_resource/new_delete_resource.cc:
357 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
358 (test03): Drop max-align test for char-aligned alloc.
360 2020-05-08 Ulrich Drepper <drepper@redhat.com>
362 * include/bits/atomic_base.h (atomic_flag): Implement test member
364 * include/std/version: Define __cpp_lib_atomic_flag_test.
365 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
366 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
368 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
370 PR libstdc++/94971 (partial)
371 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
372 std::sample using macro to work in parallel mode.
373 (__sort_fn): Likewise for std::sort.
374 (ranges::__nth_element_fn): Likewise for std::nth_element.
375 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
376 Likewise for std::__min_cmp.
377 * include/parallel/algobase.h (lexicographical_compare_three_way):
378 Add to namespace std::__parallel.
381 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
382 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
383 (_UnguardedIterator::operator _RAIter): Add const qualifier.
384 (operator<(_GuardedIterator&, _GuardedIterator&)
385 (operator<=(_GuardedIterator&, _GuardedIterator&)
386 (operator<(_UnguardedIterator&, _UnguardedIterator&)
387 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
388 parameters to const references.
390 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
392 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
393 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
395 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
397 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
398 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
399 * include/bits/stl_bvector.h (__fill_bvector): Move outside
400 _GLIBCXX_STD_C namespace.
401 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
403 (__fill_a1): ...this.
404 * testsuite/25_algorithms/fill/bvector/1.cc: New.
406 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
408 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
410 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
412 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
413 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
415 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
416 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
419 2020-05-06 Martin Liska <mliska@suse.cz>
422 2020-05-05 Martin Liska <mliska@suse.cz>
424 * include/parallel/multiway_merge.h:
425 Use const for _Compare template argument.
427 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
429 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
430 versions for GCC 9.[123] and 10.1 releases.
431 * doc/html/*: Regenerate.
433 2020-05-06 Jakub Jelinek <jakub@redhat.com>
435 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
436 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
437 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
438 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
439 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
440 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
441 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
443 2020-05-05 Martin Liska <mliska@suse.cz>
446 * include/parallel/multiway_merge.h:
447 Use const for _Compare template argument.
449 2020-05-04 Fangrui Song <maskray@google.com>
451 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
453 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
455 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
456 * doc/html/*: Regenerate.
459 * src/c++17/memory_resource.cc
460 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
463 2020-05-04 Nathan Sidwell <nathan@acm.org>
466 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
467 ptrdiff_t before negation, to show intent more clearly.
469 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
472 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
473 Add comment about single-threaded behaviour.
474 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
475 class member access out of loop.
476 (synchronized_pool_resource::synchronized_pool_resource())
477 (synchronized_pool_resource::~synchronized_pool_resource())
478 (synchronized_pool_resource::release()): Check __gthread_active_p
479 before creating and/or deleting the thread-specific data key.
480 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
482 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
483 path for single-threaded case.
484 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
485 Likewise. Return if unable to find a pool that owns the allocation.
486 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
488 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
490 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
493 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
496 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
497 usable in constant expressions.
498 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
501 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
504 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
506 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
507 Patrick Palka <ppalka@redhat.com>
510 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
511 Add trait to determine return type and an alias for it.
512 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
514 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
515 the result of ranges::iter_move.
516 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
517 instead of checking the result of ranges::iter_move.
518 * testsuite/24_iterators/customization_points/92894.cc: New test.
519 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
521 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
524 * include/std/type_traits (__is_complete_or_unbounded): Replace
526 * testsuite/17_intro/badnames.cc: New test.
528 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
531 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
532 (allocator_traits::_S_destroy)
533 (allocator_traits<allocator<T>>::construct): Use traits in
535 * include/bits/allocator.h (allocator<void>::construct)
536 (allocator<void>::destroy): Likewise.
537 * include/ext/malloc_allocator.h (malloc_allocator::construct)
538 (malloc_allocator::destroy): Likewise.
539 * include/ext/new_allocator.h (new_allocator::construct)
540 (new_allocator::destroy): Likewise.
541 * testsuite/20_util/allocator/89510.cc: New test.
542 * testsuite/ext/malloc_allocator/89510.cc: New test.
543 * testsuite/ext/new_allocator/89510.cc: New test.
545 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
548 * include/bits/basic_string.tcc: Update comment about explicit
551 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
554 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
555 Remove non-standard macro.
556 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
557 to indicate P1032R1 support.
558 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
559 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
560 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
561 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
562 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
563 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
564 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
566 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
567 * testsuite/21_strings/basic_string_view/operations/copy/char/
568 constexpr.cc: Likewise.
569 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
572 * include/bits/alloc_traits.h (_S_construct): Restore placement
573 new-expression for C++11/14/17 and call std::construct_at directly
575 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
576 function returning void.
577 * testsuite/20_util/specialized_algorithms/
578 uninitialized_value_construct/94831.cc: New test.
579 * testsuite/23_containers/vector/cons/94831.cc: New test.
581 2020-04-28 Patrick Palka <ppalka@redhat.com>
583 LWG 3433 subrange::advance(n) has UB when n < 0
584 * include/std/ranges (subrange::prev): Fix typo.
585 (subrange::advance): Handle a negative argument as per the proposed
586 resolution of LWG 3433.
587 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
589 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
590 Iain Sandoe <iain@sandoe.co.uk>
593 * include/std/coroutine: Implement handing for non-
594 class coroutine return types.
596 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
598 * include/experimental/executor (service_already_exists): Make default
599 constructor public (LWG 3414).
600 * testsuite/experimental/net/execution_context/make_service.cc: Check
601 the service_already_exists can be default constructed.
603 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
604 Jonathan Wakely <jwakely@redhat.com>
608 * include/std/any (any): Rename template parameters for consistency
610 (any::_Decay): Rename to _Decay_if_not_any.
611 (any::any(T&&):: Remove is_constructible from constraints. Remove
612 non-standard overload.
613 (any::any(in_place_type_t<T>, Args&&...))
614 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
615 (any::emplace(Args&&...))
616 (any::emplace(initializer_list<U>, Args&&...)):
617 Use decay_t instead of _Decay.
618 * testsuite/20_util/any/cons/90415.cc: New test.
619 * testsuite/20_util/any/cons/92156.cc: New Test.
620 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
622 * testsuite/20_util/any/modifiers/92156.cc: New test.
624 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
626 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
627 * doc/html/*: Regenerate.
629 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
630 value for C++17 to 201803L because P0858R0 is supported for C++17.
631 * include/std/version (__cpp_lib_array_constexpr): Likewise.
632 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
633 Check for value corresponding to P0031R0 features being tested.
634 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
635 Check for value corresponding to P0858R0 features being tested.
637 * include/std/version (__cpp_lib_three_way_comparison): Define for
640 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
642 * include/experimental/net/executor (system_context): Mark
643 system_context::system_context() = delete.
644 * testsuite/experimental/net/executor/1.cc: Add new
645 test to check system_context is not default constructible.
647 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
649 * include/std/coroutine: Update the inline namespace to __n4861.
650 Add the __cpp_lib_coroutine define, set to 201902L.
651 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
653 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
655 * include/std/execution (__cpp_lib_execution): Define to indicate
656 support for P0024R2 and P1001R2.
657 * include/std/version (__cpp_lib_execution): Define.
658 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
659 defined by <algorithm>, move other tests to new tests ...
660 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
661 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
662 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
663 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
665 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
666 different values for C++17 and C++20, to indicate different feature
667 sets. Update value for C++20 to indicate P1032R1 support.
668 * include/std/version (__cpp_lib_array_constexpr): Likewise.
669 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
670 Check feature test macro.
671 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
673 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
675 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
676 in C++17 mode and check feature test macro.
678 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
680 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
681 defined by <utility>.
683 * include/std/functional (__cpp_lib_concepts): Update macro value to
684 indicate P1964R2 support.
685 * include/std/version (__cpp_lib_concepts): Likewise.
686 * testsuite/std/concepts/1.cc: Adjust expected value.
687 * testsuite/std/concepts/2.cc: Likewise.
689 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
690 __cpp_lib_constexpr_functional.
691 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
692 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
694 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
695 indicate P1006R1 support.
696 (__cpp_lib_to_address): Define to indicate P0653R2 support.
697 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
699 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
701 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
703 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
705 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
706 Define to indicate P0339R6 support.
707 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
708 indicate P0457R2 support.
709 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
710 to indicate P0758R1 support.
711 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
712 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
713 * include/std/version (__cpp_lib_atomic_float)
714 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
715 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
716 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
717 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
718 (__cpp_lib_to_address): Define.
719 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
721 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
723 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
725 * include/std/version (__cpp_lib_map_insertion)
726 (__cpp_lib_unordered_map_insertion): Remove.
728 * include/std/condition_variable (__cpp_lib_jthread): Remove
729 redundant definition.
730 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
731 indicate P1869R1 support.
732 * include/std/version (__cpp_lib_jthread): Update value.
733 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
734 for updated macro value.
735 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
737 * testsuite/30_threads/jthread/1.cc: Likewise.
738 * testsuite/30_threads/jthread/2.cc: Likewise.
739 * testsuite/30_threads/stop_token/1.cc: Likewise.
740 * testsuite/30_threads/stop_token/2.cc: Likewise.
742 * testsuite/21_strings/basic_string/erasure.cc: Check for
743 __cpp_lib_erase_if macro.
744 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
746 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
747 * testsuite/23_containers/list/erasure.cc: Likewise.
748 * testsuite/23_containers/map/erasure.cc: Likewise.
749 * testsuite/23_containers/set/erasure.cc: Likewise.
750 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
751 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
752 * testsuite/23_containers/vector/erasure.cc: Likewise.
754 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
756 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
757 to define operator<=>.
758 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
760 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
761 * doc/Makefile.in: Regenerate.
762 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
764 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
765 to the C++11 status table.
766 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
767 proposals with table matching contents of the C++14 standard.
768 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
770 * doc/html/*: Regenerate.
773 * include/std/type_traits (__is_nt_constructible_impl): Add partial
774 specializations for bounded arrays with non-empty initializers.
775 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
777 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
779 * testsuite/lib/libstdc++.exp: Add additional_flags=
780 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
781 compiling with a newer Thread Building Blocks.
783 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
785 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
787 * testsuite/20_util/is_constructible/51185.cc: Make test class a
788 non-aggregate so that the test verifies the same thing in all -std
790 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
791 results for some types when paren-init for aggregates is supported.
793 * include/std/version (__cpp_lib_three_way_comparison): Update value.
794 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
795 (__detail::__synth3way): Add noexcept-specifier.
797 * include/bits/stl_map.h (map): Define operator<=> and remove
799 * include/bits/stl_multimap.h (multimap): Likewise.
800 * include/bits/stl_multiset.h (multiset): Likewise.
801 * include/bits/stl_set.h (set): Likewise.
802 * include/bits/stl_tree.h (_Rb_tree): Likewise.
803 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
804 operator!= for C++20.
805 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
806 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
807 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
808 * include/debug/set.h (__gnu_debug::set): Likewise.
809 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
810 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
811 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
812 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
814 2020-04-20 Matthias Kretz <kretz@kde.org>
816 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
818 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
820 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
821 * include/bits/stl_stack.h (stack): Likewise.
822 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
823 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
825 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
826 Remove redundant operator!= for C++20.
827 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
829 * include/debug/unordered_map (unordered_map, unordered_multimap):
831 * include/debug/unordered_set (unordered_set, unordered_multiset):
835 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
836 redundant assignment in constructor.
838 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
840 * include/std/chrono (duration, time_point): Define operator<=> and
841 remove redundant operator!= for C++20.
842 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
844 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
847 * testsuite/util/native_type/native_priority_queue.hpp: Use
848 allocator_traits to rebind allocator.
850 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
852 * include/bits/forward_list.h (forward_list): Define operator<=> and
853 remove redundant comparison operators for C++20.
854 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
855 * include/bits/stl_deque.h (deque): Likewise.
856 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
857 * include/bits/stl_list.h (list): Likewise.
858 * include/bits/stl_vector.h (vector): Likewise.
859 * include/debug/deque (__gnu_debug::deque): Likewise.
860 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
861 * include/debug/list (__gnu_debug::list): Likewise.
862 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
864 * include/debug/vector (__gnu_debug::vector): Likewise.
865 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
866 operator<=> for C++20.
867 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
868 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
869 * testsuite/23_containers/list/cmp_c++20.cc: New test.
870 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
871 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
873 * include/bits/basic_string.h (basic_string): Define operator<=> and
874 remove redundant comparison operators for C++20.
875 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
876 Add comparison_category members.
877 (__detail::__char_traits_cmp_cat): New helper to get comparison
878 category from char traits class.
879 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
881 (sub_match): Define operator<=> and remove redundant comparison
883 (match_results): Remove redundant operator!= for C++20.
884 * include/std/string_view (basic_string_view): Define operator<=> and
885 remove redundant comparison operators for C++20.
886 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
888 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
890 * testsuite/21_strings/basic_string_view/operations/copy/char/
891 constexpr.cc: Initialize variable.
892 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
893 constexpr.cc: Likewise.
894 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
895 dg-do directive and remove comments showing incorrect signatures.
896 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
898 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
900 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
902 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
904 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
906 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
907 name of unused parameter.
909 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
911 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
912 (directory_entry): Define operator<=> and remove redundant comparison
914 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
915 * include/bits/fs_path.h (path): Define operator<=> and remove
916 redundant comparison operators for C++20.
917 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
918 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
919 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
920 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
922 * include/bits/allocator.h (operator!=): Do not define for C++20.
923 * include/bits/locale_classes.h (operator!=): Likewise.
924 * include/bits/std_function.h (operator==(nullptr_t, const function&))
925 (operator!=(const function&, nullptr_t))
926 (operator!=(nullptr_t, const function&)): Likewise.
927 * include/ext/bitmap_allocator.h (operator!=): Likewise.
928 * include/ext/debug_allocator.h (operator!=): Likewise.
929 * include/ext/extptr_allocator.h (operator!=): Likewise.
930 * include/ext/malloc_allocator.h (operator!=): Likewise.
931 * include/ext/mt_allocator.h (operator!=): Likewise.
932 * include/ext/new_allocator.h (operator!=): Likewise.
933 * include/ext/pool_allocator.h (operator!=): Likewise.
934 * include/ext/throw_allocator.h (operator!=): Likewise.
935 * include/std/bitset (bitset::operator!=): Likewise.
936 * include/std/memory_resource (operator!=): Likewise.
937 * include/std/scoped_allocator (operator!=): Likewise.
939 * include/std/typeindex (operator<=>): Define for C++20.
940 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
942 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
944 * libsupc++/compare (compare_three_way): Fix constraint so that
945 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
946 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
950 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
951 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
952 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
953 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
954 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
955 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
959 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
960 * testsuite/18_support/comparisons/categories/94565.cc: New test.
962 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
964 * include/std/coroutine: Update coroutines builtin define,
967 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
969 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
970 (strong_order, weak_order, partial_order): Replace uses of <=> with
971 compare_three_way function object (LWG 3324).
972 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
973 equality operator so that X satisfies three_way_comparable.
974 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
976 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
978 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
979 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
980 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
981 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
982 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
984 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
986 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
988 * include/std/complex (operator==(const T&, const complex<T>&))
989 (operator!=(const complex<T>&, const complex<T>&))
990 (operator!=(const complex<T>&, const T&))
991 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
992 * testsuite/26_numerics/slice/compare.cc: New test.
994 * include/std/charconv (to_chars_result, from_chars_result): Add
995 defaulted equality comparisons for C++20.
996 * testsuite/20_util/from_chars/compare.cc: New test.
997 * testsuite/20_util/to_chars/compare.cc: New test.
999 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
1002 * include/std/charconv (__integer_to_chars_result_type)
1003 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
1005 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
1006 use of std::string_view with std::string.
1007 * testsuite/20_util/from_chars/2.cc: Likewise.
1008 * testsuite/20_util/to_chars/1.cc: Likewise.
1009 * testsuite/20_util/to_chars/2.cc: Likewise.
1011 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
1014 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
1015 usable in constant expressions for C++20.
1016 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
1017 _GLIBCXX20_CONSTEXPR.
1018 (std::char_traits<char>, std::char_traits<wchar_t>)
1019 (std::char_traits<char8_t>): Make move, copy and assign usable in
1020 constant expressions for C++20.
1021 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
1022 and copy usable in constant expressions for C++20.
1023 * include/std/string_view (basic_string_view::copy): Add
1024 _GLIBCXX20_CONSTEXPR.
1025 * testsuite/21_strings/basic_string_view/operations/copy/char/
1026 constexpr.cc: New test.
1027 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
1028 constexpr.cc: New test.
1030 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
1032 * doc/xml/manual/appendix_contributing.xml: Refer to Git
1033 documentation instead of Subversion. Switch to https.
1034 * doc/html/manual/appendix_contributing.html: Regenerate.
1036 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
1039 * include/bits/ptr_traits.h (__to_address): Add special case for debug
1040 iterators, to avoid dereferenceable check.
1041 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
1042 * testsuite/20_util/to_address/debug.cc: New test.
1044 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
1046 * testsuite/experimental/net/execution_context/use_service.cc:
1047 Require pthread and gthreads.
1049 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
1051 * doc/xml/manual/appendix_free.xml: Move "free books" list from
1053 * doc/html/manual/appendix_free.html: Regenerate.
1055 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
1057 Library-side tests for parenthesized aggregate init
1062 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
1063 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1064 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1065 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1066 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
1067 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1068 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1069 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
1070 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1072 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
1073 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1074 * testsuite/20_util/variant/92878_92947.cc: Likewise.
1075 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1077 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1079 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1081 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1083 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1085 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1087 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
1088 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1089 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1091 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1092 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1094 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1096 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1098 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1100 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1103 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
1105 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
1106 for changes due to parenthesized aggregate-initialization in C++20.
1107 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
1108 with std::chrono::sys_time in C++20.
1110 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
1111 to constrain C++20 versions of comparison operators. Fix backwards
1112 logic of relational operators.
1113 (move_iterator): Use requires-clause to constrain comparison operators
1114 in C++20. Do not declare non-standard same-type overloads for C++20.
1115 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
1116 of comparisons and check using greedy_ops type.
1117 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
1118 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
1119 main function from compile-only test.
1120 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
1122 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
1124 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
1125 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
1126 C++20 concepts are required.
1127 * include/bits/stl_iterator_base_types.h: Likewise.
1128 * include/std/concepts: Likewise.
1129 * include/std/version: Likewise.
1130 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
1133 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
1134 (reverse_iterator::iterator_category): Define for C++20.
1135 (reverse_iterator): Define comparison operators correctly for C++20.
1136 (__normal_iterator): Add constraints to comparison operators for C++20.
1137 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
1138 overload for input iterators.
1139 (move_iterator): Add constraints to comparison operators for C++20.
1140 Define operator<=> for C++20.
1141 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
1142 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
1143 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
1144 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
1146 * include/bits/iterator_concepts.h (__detail::__decay_copy)
1147 (__detail::__member_begin, __detail::__adl_begin): Move here from
1148 <bits/range_access.h>.
1149 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
1150 * bits/range_access.h (__cust_access::__decay_copy)
1151 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
1152 <bits/iterator_concepts.h>.
1153 (ranges::iterator_t): Use __detail::__range_iter_t.
1154 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
1155 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
1156 (front_insert_iterator): Likewise.
1157 (insert_iterator): Implement changes from P0896R4 for C++20.
1158 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
1159 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
1160 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
1161 for inclusion in synopsis_c++20.cc which expects different signatures
1162 for some function templates.
1163 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
1165 * include/std/type_traits (__is_array_convertible): Move definition
1166 to immediately after is_convertible.
1168 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
1170 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
1171 (chrono::months, chrono::sys_days, chrono::local_t)
1172 (chrono::local_time, chrono::local_seconds, chrono::local_days):
1174 (chrono::time_point): Add missing static assert.
1175 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
1176 * testsuite/std/time/clock/file/overview.cc: New test.
1177 * testsuite/std/time/clock/file/members.cc: New test.
1178 * testsuite/std/time/syn_c++20.cc: New test.
1180 2020-03-25 Mike Crowe <mac@mcrowe.com>
1182 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
1184 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
1187 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
1189 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
1190 * include/std/chrono (filesystem::__file_clock): Here.
1191 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
1192 Define public member functions for C++20.
1193 (is_clock, is_clock_v): Define traits for C++20.
1194 * include/std/condition_variable (condition_variable::wait_until): Add
1195 check for valid clock.
1196 * include/std/future (_State_baseV2::wait_until): Likewise.
1197 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
1198 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
1200 * include/std/thread (this_thread::sleep_until): Likewise.
1201 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
1202 slow_clock with new namespace.
1203 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
1205 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1207 * testsuite/30_threads/future/members/clock_neg.cc: New test.
1208 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
1209 Qualify slow_clock with new namespace.
1210 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
1211 clock_neg.cc: New test.
1212 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
1214 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
1215 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1217 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
1218 slow_clock with new namespace.
1219 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
1220 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
1222 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
1223 * testsuite/std/time/traits/is_clock.cc: New test.
1224 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
1227 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
1230 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
1231 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
1232 Improve test coverage.
1235 * include/bits/fs_path.h (path::_S_str_convert): Replace first
1236 parameter with basic_string_view so that strings with different
1237 allocators can be accepted.
1238 (path::generic_string<C,T,A>()): Use basic_string object that uses the
1239 right allocator type.
1240 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
1241 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
1244 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
1247 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
1248 (__is_nt_default_constructible_impl): Remove.
1249 (__is_nothrow_default_constructible_impl): Remove.
1250 (__is_nt_constructible_impl): Add bool template parameter. Adjust
1251 partial specializations.
1252 (__is_nothrow_constructible_impl): Replace class template with alias
1254 (is_nothrow_default_constructible): Derive from alias template
1255 __is_nothrow_constructible_impl instead of
1256 __is_nothrow_default_constructible_impl.
1257 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
1259 * include/std/stop_token (stop_token::_Stop_state_ref): Define
1260 comparison operators explicitly if the compiler won't synthesize them.
1262 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
1263 __cpp_lib_concepts before using iter_reference_t.
1264 * include/bits/stream_iterator.h (istream_iterator): Check
1265 __cpp_lib_concepts before using default_sentinel_t.
1266 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
1269 * include/experimental/executor (executor::executor(Executor)): Call
1270 make_shared directly instead of _M_create. Create _Tgt1 object.
1271 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
1272 Call allocate_shared directly instead of _M_create. Create _Tgt2
1274 (executor::target_type): Add cast needed for new _Tgt interface.
1275 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
1276 (executor::_Tgt): Define the same interface whether RTTI is enabled or
1278 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
1279 std::type_info in the interface.
1280 (executor::_Tgt::_M_func): Add data member.
1281 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
1282 (executor::_Tgt1::_S_func): Define function to access target without
1284 (executor::_M_create): Remove.
1285 (operator==, operator!=): Simplify comparisons for executor.
1286 * include/experimental/socket (is_error_code_enum<socket_errc>):
1287 Define specialization before use.
1288 * testsuite/experimental/net/executor/1.cc: New test.
1290 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
1293 * include/experimental/executor (service_already_exists): Add default
1294 constructor. Declare make_service to be a friend.
1295 * testsuite/experimental/net/execution_context/make_service.cc: New
1298 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
1300 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
1301 a null pointer to functions with nonnull(1) attribute.
1303 2020-03-11 Patrick Palka <ppalka@redhat.com>
1305 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
1306 'address' -> 'std::__addressof'.
1307 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
1308 a non-forward input_range.
1309 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
1310 default constructor protected instead of deleted, like with
1311 input_iterator_wrapper.
1312 (test_range::iterator): Add comment explaining that this type is used
1313 only when the underlying wrapper is input_iterator_wrapper or
1314 output_iterator_wrapper. Remove delegating defaulted constructor so
1315 that the inherited default constructor is used instead.
1317 LWG 3286 ranges::size is not required to be valid after a call to
1318 ranges::begin on an input range
1319 * include/std/ranges (subrange::subrange): Split single-argument
1320 constructor into two, one constrained by _S_store_size and another by
1322 (take_view::begin): Call size() before calling ranges::begin(_M_base).
1323 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
1324 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
1326 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
1328 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
1329 instead of _M_current.
1330 (split_view::_OuterIter::operator++): Likewise.
1332 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
1333 (transform_view::_Iterator::operator*): Add noexcept-specifier.
1334 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
1335 (split_view::_OuterIter::__current): Add noexcept.
1336 (split_view::_InnerIter::__iter_swap): Remove.
1337 (split_view::_InnerIter::__iter_move): Remove.
1338 (split_view::_InnerIter::_M_i_current): New accessors.
1339 (split_view::_InnerIter::__at_end): Use _M_i_current().
1340 (split_view::_InnerIter::operator*): Likewise.
1341 (split_view::_InnerIter::operator++): Likewise.
1342 (iter_move(const _InnerIter&)): Likewise.
1343 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
1344 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
1345 for iter_move and iter_swap on split_view's inner iterator.
1348 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
1349 Change expression in noexcept-specifier to match function body.
1351 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
1352 comment explaining multiple dg-do directives.
1353 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
1354 so test is run as well as compiled.
1356 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
1359 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
1360 handle concatenations that change the type of the first component.
1361 (path::operator+=(basic_string_view<value_type>)): Likewise.
1362 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
1364 2020-03-06 Patrick Palka <ppalka@redhat.com>
1366 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
1367 join_view::_Sentinel<!_Const>.
1368 * testsuite/std/ranges/adaptors/join.cc: Augment test.
1371 * include/bits/range_access.h (__cust_access::_Empty::operator()):
1372 Declare return type to be bool instead of auto.
1373 * testsuite/std/ranges/adaptors/93978.cc: New test.
1375 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
1378 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
1379 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
1380 second argument to __glibcxx_rwlock_init.
1381 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
1384 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
1385 test to not fail due to PR 94063.
1386 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
1387 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
1389 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
1391 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
1394 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
1396 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
1397 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
1398 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1399 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
1400 for return value, and in comparison.
1401 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
1404 * include/std/string_view: Include <bits/ostream_insert.h>.
1405 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
1407 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
1409 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
1411 2020-03-04 Patrick Palka <ppalka@redhat.com>
1414 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
1415 condition for when to use memset, making sure to additionally check that
1416 the output pointer's value type is a non-volatile byte type. Instead of
1417 requiring that the fill type is a byte type, just require that it's an
1419 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1421 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1423 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
1424 blocked by PR 94017.
1425 * testsuite/25_algorithms/fill/94017.cc: New test.
1426 * testsuite/25_algorithms/fill_n/94017.cc: New test.
1428 LWG 3355 The memory algorithms should support move-only input iterators
1430 * include/bits/ranges_uninitialized.h
1431 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
1432 to copy __ifirst, which could be a move-only input iterator. Use
1433 operator- instead of ranges::distance to compute distance from a sized
1435 (__uninitialized_copy_n_fn::operator()): Likewise.
1436 (__uninitialized_move_fn::operator()): Likewise.
1437 (__uninitialized_move_n_fn::operator()): Likewise.
1438 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
1439 attempting to copy __first.
1440 (__uninitialized_destroy_n_fn::operator()): Likewise.
1441 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1443 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
1445 * .../specialized_algorithms/uninitialized_move/constrained.cc:
1448 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
1449 protected instead of private.
1450 (test_sized_range_sized_sent): New.
1452 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
1453 New testsuite iterator.
1454 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
1455 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1457 * include/bits/ranges_uninitialized.h
1458 (uninitialized_copy_fn::operator()): Pass a reference type as the first
1459 argument to is_nothrow_assignable_v.
1460 (uninitialized_copy_fn::operator()): Likewise.
1461 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
1462 with the input iterator stripped of its move_iterator.
1463 (uninitialized_move_n_fn::operator()): Likewise.
1464 (uninitialized_fill_fn::operator()): Pass a reference type as the first
1465 argument to is_nothrow_assignable_v.
1466 (uninitialized_fill_n_fn::operator()): Likewise.
1468 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
1471 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
1472 traits to control when to use memmove and memcmp optimizations.
1473 (__is_nonvolatile_trivially_copyable): New helper trait.
1474 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
1475 use memcmp optimization with volatile data.
1476 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
1477 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
1478 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
1479 (__copy_move_backward_a2): Likewise.
1480 (__equal_aux1): Use __memcmpable.
1481 (__lexicographical_compare_aux): Do not use memcmp optimization with
1483 * testsuite/25_algorithms/copy/94013.cc: New test.
1484 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
1485 * testsuite/25_algorithms/equal/94013.cc: New test.
1486 * testsuite/25_algorithms/fill/94013.cc: New test.
1487 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
1488 * testsuite/25_algorithms/move/94013.cc: New test.
1489 * testsuite/25_algorithms/move_backward/94013.cc: New test.
1491 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
1492 Avoid redundant iterator comparisons (LWG 3410).
1494 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
1497 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
1499 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
1501 * include/std/ranges (__detail::__maybe_empty_t): Rename to
1503 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
1505 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
1508 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
1510 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1512 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1514 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
1515 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1516 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1517 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1518 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1520 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1521 Add libatomic option.
1522 * testsuite/30_threads/jthread/jthread.cc: Likewise.
1524 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
1526 * include/bits/stl_algo.h
1527 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
1528 * include/bits/stl_algobase.h: ...here.
1529 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
1531 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1533 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
1535 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1537 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
1538 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
1539 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
1540 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1541 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
1542 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1543 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1547 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1549 2020-02-28 Patrick Palka <ppalka@redhat.com>
1552 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1553 Fix condition for when to use memcmp, making it consistent with the
1554 corresponding condition used in std::lexicographical_compare.
1555 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
1557 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
1558 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
1559 existing signatures for C++2a.
1561 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1563 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
1564 test instead of just compiling it.
1566 2020-02-28 Patrick Palka <ppalka@redhat.com>
1568 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
1569 whenever the underlying range models common_range.
1571 * include/std/ranges (__detail::_CachedPosition): New struct.
1572 (views::filter_view::_S_needs_cached_begin): New member variable.
1573 (views::filter_view::_M_cached_begin): New member variable.
1574 (views::filter_view::begin): Use _M_cached_begin to cache its
1576 (views::drop_view::_S_needs_cached_begin): New static member variable.
1577 (views::drop_view::_M_cached_begin): New member variable.
1578 (views::drop_view::begin): Use _M_cached_begin to cache its result
1579 when _S_needs_cached_begin.
1580 (views::drop_while_view::_M_cached_begin): New member variable.
1581 (views::drop_while_view::begin): Use _M_cached_begin to cache its
1583 (views::reverse_view::_S_needs_cached_begin): New static member
1585 (views::reverse_view::_M_cached_begin): New member variable.
1586 (views::reverse_view::begin): Use _M_cached_begin to cache its result
1587 when _S_needs_cached_begin.
1588 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
1589 drop_view::begin caches its result.
1590 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
1591 that drop_while_view::begin caches its result.
1592 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
1593 filter_view::begin caches its result.
1594 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1595 reverse_view::begin caches its result.
1597 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1599 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1600 filesystems that silently truncate timestamps.
1601 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1604 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1605 -Wstringop-overflow warnings.
1607 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1609 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1610 -fdiagnostics-urls=never to options.
1612 2020-02-27 Patrick Palka <ppalka@redhat.com>
1614 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
1616 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
1617 (take_view::_Sentinel<_Const>): Likewise.
1618 (take_while_view::_Sentinel<_Const>): Likewise.
1619 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
1620 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1621 * testsuite/std/ranges/adaptors/take.cc: Augment test.
1622 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
1623 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1625 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
1626 base() of a vector<>::iterator is a pointer.
1627 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
1628 * testsuite/25_algorithms/move/constrained.cc: Likewise.
1629 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
1630 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
1632 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1633 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
1634 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1635 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1636 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1638 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1640 * include/debug/array (operator<=>): Define for C++20.
1641 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
1642 Adjust dg-error line numbers.
1643 * testsuite/23_containers/array/tuple_interface/
1644 tuple_element_debug_neg.cc: Likewise.
1646 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
1647 defining _GLIBCXX_ASSERTIONS.
1648 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1649 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1650 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1651 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1652 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1653 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1654 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
1655 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
1656 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
1657 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
1658 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
1659 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1661 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
1662 C++98 where the member function of the base class returns void.
1664 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
1665 equality comparisons that support value-initialized iterators.
1667 * include/bits/boost_concept_check.h (__function_requires): Add
1668 _GLIBCXX14_CONSTEXPR.
1669 * testsuite/25_algorithms/min/concept_checks.cc: New test.
1671 2020-02-26 Patrick Palka <ppalka@redhat.com>
1674 * include/std/ranges (split_view::_InnerIter::operator==): Compare
1675 the operands' _M_i rather than their _M_i.current().
1676 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1678 P1645R1 constexpr for <numeric> algorithms
1679 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
1680 partial_sum, adjacent_difference): Make conditionally constexpr for
1682 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
1684 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
1685 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
1686 constexpr for C++20.
1687 * include/std/version (__cpp_lib_constexpr_numeric): Define.
1688 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
1689 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
1690 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1691 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1692 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1693 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1694 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1695 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1696 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
1697 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
1698 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1700 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
1702 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
1703 variables in smaller scope and avoid calling ranges::distance when we
1704 know they are pointers. Remove statically-unreachable use of
1705 __builtin_unreachable().
1706 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
1709 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
1711 (__detail::__maybe_const_t): Likewise.
1712 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
1713 (transform_view, take_view, take_while_view, elements_view): Use
1715 (join_view, split_view): Use both.
1717 2020-02-25 Patrick Palka <ppalka@redhat.com>
1719 LWG 3397 basic_istream_view::iterator should not provide
1721 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
1723 (basic_istream_view:_Iterator::iterator_concept): ... this.
1724 * testsuite/std/ranges/istream_view.cc: Augment test.
1726 LWG 3325 Constrain return type of transformation function for
1728 * include/std/ranges (transform_view): Constrain the return type of the
1729 transformation function as per LWG 3325.
1730 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
1732 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
1733 * include/std/ranges (join_view::_Iterator::operator--): Require that
1734 range_reference_t<_Base> models common_range.
1735 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
1737 LWG 3301 transform_view::_Iterator has incorrect iterator_category
1738 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
1739 determination of iterator_category as per LWG 3301.
1740 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1742 LWG 3292 iota_view is under-constrained
1743 * include/std/ranges (iota_view): Require that _Winc models semiregular
1745 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
1747 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
1749 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
1750 during constant evaluation. Call __builtin_memmove directly instead of
1752 (__copy_or_move_backward): Likewise.
1753 * include/bits/stl_algobase.h (__memmove): Remove.
1754 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
1755 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
1756 Use __builtin_memmove directly instead of __memmove.
1757 (__copy_move_a2): Do not use memmove during constant evaluation.
1758 (__copy_move_backward_a2): Use _IsMove constant to select correct
1759 __copy_move_backward specialization.
1760 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
1761 begin turned into moves during constant evaluation.
1763 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
1767 * include/bits/stl_algobase.h (__memmove): Cast away const before
1768 doing move assignment.
1769 * testsuite/25_algorithms/move/93872.cc: New test.
1770 * testsuite/25_algorithms/move_backward/93872.cc: New test.
1772 2020-02-24 Patrick Palka <ppalka@redhat.com>
1775 * include/bits/ranges_algobase.h (__copy_or_move,
1776 __copy_or_move_backward): Don't inspect the iter_value_t of the output
1777 iterator, instead inspect its iterator_traits directly.
1778 * include/bits/stl_iterator.h (back_insert_iterator::container):
1779 Conditionally initialize.
1780 (back_insert_iterator::difference_type): Conditionally define.
1781 (back_insert_iterator::back_insert_iterator): Conditionally define this
1782 default constructor.
1783 (front_insert_iterator::container): Conditionally initialize.
1784 (front_insert_iterator::difference_type): Conditionally define.
1785 (front_insert_iterator::front_insert_iterator): Conditionally define
1786 this default constructor.
1787 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
1788 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
1790 P0769R2 Add shift to <algorithm>
1791 * include/bits/ranges_algo.h (shift_left, shift_right): New.
1792 * testsuite/25_algorithms/shift_left/1.cc: New test.
1793 * testsuite/25_algorithms/shift_right/1.cc: New test.
1795 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
1797 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1798 Make noexcept-specifier conditional.
1799 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
1802 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1804 (operator==(istream_iterator, default_sentinel_t)): Add operator.
1805 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
1806 * include/bits/streambuf_iterator.h
1807 (istreambuf_iterator(default_sentinel_t)): Add constructor.
1808 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
1809 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1811 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
1812 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1814 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1816 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
1817 (ranges::enable_view): Simplify (LWG 3326).
1818 * include/bits/range_access.h (ranges::enable_view): Declare.
1819 * include/bits/regex.h (__enable_view_impl): Remove partial
1821 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
1822 * include/bits/stl_set.h (__enable_view_impl): Likewise.
1823 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
1824 * include/debug/multiset.h (__enable_view_impl): Likewise.
1825 * include/debug/set.h (__enable_view_impl): Likewise.
1826 * include/debug/unordered_set (__enable_view_impl): Likewise.
1827 * include/experimental/string_view (ranges::enable_view): Define
1828 partial specialization.
1829 * include/std/span (ranges::enable_view): Likewise.
1830 * include/std/string_view (ranges::enable_view): Likewise.
1831 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
1833 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
1835 * include/std/optional (operator<=>(optional<T>, optional<U>))
1836 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
1838 * include/std/tuple (__tuple_cmp): New helper function for <=>.
1839 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
1840 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
1841 (operator<=>(monostate, monostate)): Define for C++20.
1842 * testsuite/20_util/optional/relops/three_way.cc: New test.
1843 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
1844 * testsuite/20_util/variant/89851.cc: Move to ...
1845 * testsuite/20_util/variant/relops/89851.cc: ... here.
1846 * testsuite/20_util/variant/90008.cc: Move to ...
1847 * testsuite/20_util/variant/relops/90008.cc: ... here.
1848 * testsuite/20_util/variant/relops/three_way.cc: New test.
1850 2020-02-20 Patrick Palka <ppalka@redhat.com>
1852 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
1854 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
1855 __maybe_refwrap to capture lvalue references by reference, and then use
1856 unwrap_reference_t to forward the by-reference captures as references.
1857 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1858 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
1860 * include/std/ranges (iota_view): Forward declare _Sentinel.
1861 (iota_view::_Iterator): Befriend _Sentinel.
1862 (iota_view::_Sentinel::_M_equal): New member function.
1863 (iota_view::_Sentinel::operator==): Use it.
1864 (views::_Iota::operator()): Forward __f using the correct type.
1865 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
1866 with integers of different signedness, to appease iota_view's deduction
1868 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
1870 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
1872 * include/bits/range_access.h (ranges::begin): Reject array of
1874 (ranges::end, ranges::size): Require arrays to be bounded.
1875 (ranges::data): Require lvalue or borrowed_range.
1876 (ranges::iterator_t): Remove constraint.
1877 * testsuite/std/ranges/access/begin.cc: Do not check array of
1879 * testsuite/std/ranges/access/begin_neg.cc: New test.
1880 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
1881 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
1882 * testsuite/std/ranges/access/ssize.cc: Do not check array of
1885 * include/std/system_error (error_category::operator<=>)
1886 (operator<=>(const error_code&, const error_code&))
1887 (operator<=>(const error_condition&, const error_condition&)): Define
1889 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
1890 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
1892 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
1894 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
1895 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
1897 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
1898 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
1900 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
1901 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
1902 Remove incorrect comment.
1903 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
1906 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
1908 * include/std/thread (thread::id::operator<=>): Define for C++20.
1909 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
1910 functions in namespace std.
1911 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
1913 2020-02-19 Patrick Palka <ppalka@redhat.com>
1915 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
1916 null terminator of the underlying string as part of the test_range.
1917 (main): Call test03.
1919 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
1921 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
1922 requirement (LWG 3385).
1923 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
1924 expected declaration.
1926 * include/std/ranges (take_while_view, drop_view, drop_while_view)
1927 (elements_view:_Iterator): Initialize data members (LWG 3364).
1929 * libsupc++/compare (three_way_comparable): Remove always-false check
1930 that should have been removed with weak_equality (P1959R0).
1931 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
1933 * include/std/concepts (__detail::__partially_ordered_with): Move here
1935 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
1936 to simplify definition (LWG 3331).
1937 * libsupc++/compare (__detail::__partially_ordered_with): Move to
1940 * include/std/concepts (totally_ordered_with): Remove redundant
1941 requirement (LWG 3329).
1943 * include/std/ranges (__detail::__convertible_to_non_slicing): New
1945 (__detail::__pair_like_convertible_to): Remove.
1946 (__detail::__pair_like_convertible_from): Add requirements for
1947 non-slicing conversions.
1948 (subrange): Constrain constructors with __convertible_to_non_slicing.
1949 Remove constructors from pair-like types. Add new deduction guide.
1950 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
1952 * include/bits/iterator_concepts.h (iter_move): Add declaration to
1953 prevent unqualified lookup finding a suitable declaration (LWG 3247).
1955 * include/std/memory_resource (polymorphic_allocator::allocate)
1956 (polymorphic_allocator::allocate_object): Change type of exception to
1957 bad_array_new_length (LWG 3237).
1958 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
1960 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
1961 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
1962 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
1963 * testsuite/20_util/unwrap_reference/3.cc: New test.
1965 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
1966 type during overload resolution, use static assert instead (LWG 3200).
1967 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
1969 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
1971 * include/std/span (span(T (&)[N])): Use non-deduced context to
1972 prevent first parameter from interfering with class template argument
1973 deduction (LWG 3369).
1974 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
1975 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
1978 * include/std/span (span::const_iterator, span::const_reverse_iterator)
1979 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
1981 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
1983 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1985 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
1986 constrained.cc: Likewise.
1987 * testsuite/20_util/specialized_algorithms/
1988 uninitialized_default_construct/constrained.cc: Likewise.
1989 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
1990 constrained.cc: Likewise.
1991 * testsuite/20_util/specialized_algorithms/uninitialized_move/
1992 constrained.cc: Likewise.
1993 * testsuite/20_util/specialized_algorithms/
1994 uninitialized_value_construct/constrained.cc: Likewise.
1996 * include/bits/range_access.h (range_size_t): Define alias template.
1997 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
1998 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
2000 * include/std/ranges (filter_view, transform_view, take_view)
2001 (join_view, split_view, reverse_view): Remove commented-out converting
2002 constructors (LWG 3280).
2004 * include/std/memory (uninitialized_construct_using_allocator): Use
2005 std::construct_at (LWG 3321).
2007 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
2008 (polymorphic_allocator::allocate_object)
2009 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
2011 LWG 3379. "safe" in several library names is misleading
2012 * include/bits/range_access.h (enable_safe_range): Rename to
2013 enable_borrowed_range.
2014 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
2015 (safe_range): Rename to borrowed_range.
2016 * include/bits/ranges_algo.h: Adjust to use new names.
2017 * include/bits/ranges_algobase.h: Likewise.
2018 * include/bits/ranges_uninitialized.h: Likewise.
2019 * include/std/ranges: Likewise.
2020 (safe_iterator_t): Rename to borrowed_iterator_t.
2021 (safe_subrange_t): Rename to borrowed_subrange_t.
2022 * include/std/span: Adjust to use new names.
2023 * include/std/string_view: Likewise.
2024 * include/experimental/string_view: Likewise.
2025 * testsuite/std/ranges/access/begin.cc: Likewise.
2026 * testsuite/std/ranges/access/cbegin.cc: Likewise.
2027 * testsuite/std/ranges/access/cdata.cc: Likewise.
2028 * testsuite/std/ranges/access/cend.cc: Likewise.
2029 * testsuite/std/ranges/access/crbegin.cc: Likewise.
2030 * testsuite/std/ranges/access/crend.cc: Likewise.
2031 * testsuite/std/ranges/access/data.cc: Likewise.
2032 * testsuite/std/ranges/access/end.cc: Likewise.
2033 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2034 * testsuite/std/ranges/access/rend.cc: Likewise.
2035 * testsuite/std/ranges/safe_range.cc: Likewise.
2036 * testsuite/std/ranges/safe_range_types.cc: Likewise.
2037 * testsuite/util/testsuite_iterators.h: Likewise.
2039 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
2040 (tuple_element<1, const subrange<I, S, K>>): Add partial
2041 specializations (LWG 3398).
2042 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
2044 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2045 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
2046 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
2048 2020-02-18 Patrick Palka <ppalka@redhat.com>
2050 P1983R0 Wording for GB301, US296, US292, US291, and US283
2051 * include/std/ranges (filter_view::pred): New member function.
2052 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
2053 P1983R0 fixes the highlighted issue in the same way.
2054 (join_view::_Iterator<_Const>): Add friend
2055 join_view::_Iterator<!_Const>.
2056 (join_view::_M_inner): Remove mutable specifier, effectively reverting
2057 the proposed wording changes of P3278.
2058 (join_view::begin): Refine the condition for when to return a const
2060 (split_view::_OuterIter::_OuterIter): Adjust constraints.
2061 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
2064 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
2067 * include/std/ranges (_RangeAdaptor): Add deduction guide.
2068 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
2070 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
2071 (transform_view::_Iterator): Add alias _Base_iter and use in place of
2073 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
2074 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
2075 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
2076 (split_view::_InnerIter::_S_iter_cat()): Likewise.
2078 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
2079 assumption that long is wider than int.
2080 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
2081 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
2082 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
2083 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
2085 P1976R2 Fixed-size span construction from dynamic range
2086 * include/std/span (__cpp_lib_span): Update value.
2087 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
2089 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
2091 (span::first<Count>(), span::last<Count>()): Use explicit type in
2093 (as_bytes, as_writable_bytes): Likewise.
2094 * include/std/version (__cpp_lib_span): Update value.
2095 * testsuite/23_containers/span/1.cc: Check new value.
2096 * testsuite/23_containers/span/2.cc: Check new value.
2097 * testsuite/23_containers/span/explicit.cc: New test.
2099 * include/std/span (span::__is_compatible_array): Simplify alias
2100 template by using requires-clause.
2101 (span::__is_compatible_ref): New alias template for constraining
2103 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
2104 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
2105 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
2106 redundant parentheses.
2107 (span(R&&)): Add missing constraints.
2109 * include/std/span (span): Reorder members and rename template
2110 parameters to match declarations in the C++2a working paper.
2112 P2116R0 Remove tuple-like protocol support from fixed-extent span
2113 * include/std/span (get, tuple_size, tuple_element): Remove.
2114 * testsuite/23_containers/span/everything.cc: Remove checks for
2116 * testsuite/23_containers/span/get_neg.cc: Remove.
2117 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
2118 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
2119 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
2121 2020-02-17 Patrick Palka <ppalka@redhat.com>
2123 P2106R0 Alternative wording for GB315 and GB316
2124 * include/bits/ranges_algo.h (in_fun_result): New.
2125 (for_each_result, for_each_n_result): Change into an alias of
2127 (in_in_result): New.
2128 (mismatch_result): Change into an alias of in_in_result.
2129 (copy_if_result): Change into an alias of in_out_result.
2130 (swap_ranges_result): Change into an alias of in_in_result.
2131 (unary_transform_result): Change into an alias of in_out_result.
2132 (in_in_out_result): New.
2133 (binary_transform_result): Change into an alias of in_in_out_result.
2134 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
2135 remove_copy_result, unique_copy_result, reverse_copy_result,
2136 rotate_copy_result, partial_sort_copy_result): Change into an alias of
2138 (in_out_out_result): New.
2139 (partition_copy_result, merge_result): Change into an alias of
2141 (set_union_result, set_intersection_result): Change into an alias of
2143 (set_difference_result): Change into an alias of in_out_result.
2144 (set_symmetric_difference): Change into an alias of in_in_out_result.
2145 (min_max_result): New.
2146 (minmax_result, minmax_element_result): Change into an alias of
2148 (in_found_result): New.
2149 (next_permutation_result, prev_permutation_result): Change into an alias
2151 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
2152 Adjust following changes to next_permutation_result and
2153 prev_permutation_result.
2154 * include/bits/ranges_algobase.h (in_out_result): New.
2155 (copy_result, move_result, move_backward_result, copy_backward_result,
2156 copy_n_result): Change into an alias of in_out_result.
2157 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
2158 uninitialized_copy_n_result, uninitialized_move_result,
2159 uninitialized_move_n_result): Likewise.
2160 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
2161 structured bindings.
2162 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
2164 P1243R4 Rangify new algorithms
2165 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
2166 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
2167 * testsuite/25_algorithms/clamp/constrained.cc: New test.
2168 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
2169 * testsuite/25_algorithms/sample/constrained.cc: New test.
2171 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
2173 P1964R2 Wording for boolean-testable
2174 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2175 (__adjacent_find_fn): Cast result of predicate to bool.
2176 * include/std/concepts (__boolean): Remove.
2177 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
2178 new helper concepts.
2179 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
2180 (predicate): Use __boolean_testable instead of boolean.
2181 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
2184 P1970R2 Consistency for size() functions: Add ranges::ssize
2185 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
2186 * testsuite/std/ranges/access/ssize.cc: New test.
2188 P1956R1 On the names of low-level bit manipulation functions
2189 * include/bits/hashtable_policy.h: Update comment.
2190 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
2191 (ispow2, ceil2, floor2, log2p1): Likewise.
2192 (__cpp_lib_int_pow2): Add feature test macro.
2193 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
2194 * include/std/memory (assume_aligned): Adjust use of ispow2.
2195 * include/std/version (__cpp_lib_int_pow2): Add.
2196 * libsupc++/new_opa.cc: Adjust use of __ispow2.
2197 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
2198 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
2199 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
2200 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
2201 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
2202 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
2203 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
2204 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
2205 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
2206 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
2207 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
2208 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
2210 * include/std/charconv: Add comment.
2212 PR libstdc++/92546 (partial)
2213 * include/bits/random.h (uniform_random_bit_generator): Move definition
2214 to <bits/uniform_int_dist.h>.
2215 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
2217 * include/bits/ranges_algobase.h: Do not include <cmath>.
2218 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
2220 * include/std/ranges: Do not include <limits>.
2221 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2223 PR libstdc++/92546 (partial)
2224 * include/Makefile.am: Add new header.
2225 * include/Makefile.in: Regenerate.
2226 * include/bits/int_limits.h: New header.
2227 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
2228 numeric_limits with __detail::__int_limits.
2229 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2230 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
2232 * include/std/charconv (__to_chars_8, __from_chars_binary)
2233 (__from_chars_alpha_to_num, from_chars): Likewise.
2234 * include/std/memory_resource (polymorphic_allocator::allocate)
2235 (polymorphic_allocator::allocate_object): Likewise.
2236 * include/std/string_view (basic_string_view::_S_compare): Likewise.
2237 * include/std/utility (in_range): Likewise.
2238 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
2239 extra error about incomplete type __int_limits<bool>.
2240 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
2241 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
2242 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
2243 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
2244 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
2245 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
2246 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
2247 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
2248 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
2249 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
2250 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
2251 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
2253 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
2254 value for partial_ordering::unordered.
2256 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
2257 const-qualified expression variations.
2258 * include/std/concepts (copyable): Likewise.
2260 * include/std/type_traits (__is_standard_integer): New helper trait.
2261 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
2262 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
2263 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
2264 * testsuite/20_util/integer_comparisons/1.cc: New test.
2265 * testsuite/20_util/integer_comparisons/2.cc: New test.
2266 * testsuite/20_util/integer_comparisons/equal.cc: New test.
2267 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
2268 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
2269 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
2270 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
2271 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
2272 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
2273 * testsuite/20_util/integer_comparisons/less.cc: New test.
2274 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
2275 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
2276 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
2277 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
2278 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
2280 2020-02-16 Patrick Palka <ppalka@redhat.com>
2282 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
2283 Move code after an early exit constexpr if to under an else branch.
2284 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
2286 2020-02-15 Patrick Palka <ppalka@redhat.com>
2288 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
2289 * include/bits/ranges_algobase.h: Likewise.
2290 * include/bits/ranges_uninitialized.h: Likewise.
2292 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
2293 binary_search, copy_if, count, count_if, equal_range, find, find_end,
2294 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
2295 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
2296 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
2297 lower_bound, make_heap, max, max_element, merge, min, min_element,
2298 minmax, minmax_element, mismatch, next_permutation, none_of,
2299 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
2300 partition_point, pop_heap, prev_permutation, push_heap, remove,
2301 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
2302 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
2303 search, search_n, set_difference, set_intersection,
2304 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
2305 stable_partition, stable_sort, swap_ranges, transform, unique,
2306 unique_copy, upper_bound): Convert into function objects.
2307 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
2308 fill, move_backward, copy_backward): Likewise.
2309 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
2310 uninitialized_default_construct_n, uninitialized_value_construct,
2311 uninitialized_value_construct_n, uninitialized_copy,
2312 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
2313 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
2314 destroy, destroy_n): Likewise.
2316 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
2317 (ranges::find_end): ... here.
2318 (ranges::__lexicographical_compare): Fold into ...
2319 (ranges::lexicographical_compare): ... here.
2320 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
2321 (ranges::equal): ... here.
2323 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2325 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
2326 * include/std/deque: Likewise.
2327 * include/std/forward_list: Likewise.
2328 * include/std/list: Likewise.
2329 * include/std/string: Likewise.
2330 * include/std/vector: Likewise.
2331 * include/std/version: Likewise.
2332 * testsuite/23_containers/deque/erasure.cc: Test for new value.
2333 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
2334 * testsuite/23_containers/list/erasure.cc: Likewise.
2335 * testsuite/23_containers/map/erasure.cc: Likewise.
2336 * testsuite/23_containers/set/erasure.cc: Likewise.
2337 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2338 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2339 * testsuite/23_containers/vector/erasure.cc: Likewise.
2341 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2343 * include/bits/random.h (uniform_random_bit_generator): Require min()
2344 and max() to be constant expressions and min() to be less than max().
2345 * testsuite/26_numerics/random/concept.cc: Check additional cases.
2346 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2348 2020-02-13 Patrick Palka <ppalka@redhat.com>
2350 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
2351 * include/Makefile.in: Regenerate.
2352 * include/bits/ranges_uninitialized.h: New header.
2353 * include/std/memory: Include it.
2354 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
2356 * .../uninitialized_copy/constrained.cc: New test.
2357 * .../uninitialized_default_construct/constrained.cc: New test.
2358 * .../uninitialized_fill/constrained.cc: New test.
2359 * .../uninitialized_move/constrained.cc: New test.
2360 * .../uninitialized_value_construct/constrained.cc: New test.
2362 * include/Makefile.am: Add bits/ranges_algobase.h
2363 * include/Makefile.in: Regenerate.
2364 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
2366 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
2367 __detail::__is_move_iterator, copy_result, move_result,
2368 __equal, equal, copy_result, move_result, move_backward_result,
2369 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
2370 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
2371 fill): Split out into ...
2372 * bits/range_algobase.h: ... this new header.
2374 2020-02-12 Patrick Palka <ppalka@redhat.com>
2376 LWG 3389 and LWG 3390
2377 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
2378 constructing the move_iterator with __i.
2379 (counted_iterator::counted_iterator): Use std::move when initializing
2381 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
2382 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
2384 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
2389 * configure: Regenerated.
2391 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
2393 * include/bits/hashtable.h
2394 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
2395 missing std namespace qualification to forward call.
2397 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
2399 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
2401 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
2403 * include/std/ranges: Fix non-ASCII characters in comment.
2405 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
2406 equality comparison to be valid and return bool.
2407 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
2408 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
2409 type with ambiguous conversion to fundamental types.
2410 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
2412 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2414 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
2416 (readable_traits): Rename to indirectly_readable_traits.
2417 (readable): Rename to indirectly_readable.
2418 (writable): Rename to indirectly_writable.
2419 (__detail::__iter_exchange_move): Do not use remove_reference_t.
2420 (indirectly_swappable): Adjust requires expression parameter types.
2422 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
2423 (ranges::replace_if, ranges::generate_n, ranges::generate)
2424 (ranges::remove): Use new name for writable.
2425 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
2426 Use new name for readable.
2427 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
2428 new name for readable_traits.
2429 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
2430 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
2431 new definition of indirectly_readable.
2433 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
2434 to take parameters of common_iterator, instead of the common_iterator
2435 type itself. Fix argument for __common_iter_has_arrow constraint.
2436 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
2438 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2440 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
2442 (basic_istream_view::_Iterator::operator++()): Add missing return.
2444 2020-02-07 Patrick Palka <ppalka@redhat.com>
2446 * include/bits/ranges_algo.h: Remove extraneous &&.
2448 * include/std/ranges (ranges::__detail::__stream_extractable,
2449 ranges::basic_istream_view, ranges::istream_view): Define.
2450 * testsuite/std/ranges/istream_view: New test.
2452 Implement C++20 range adaptors
2453 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
2454 (subrange::_S_store_size): Mark as const instead of constexpr to
2455 avoid what seems to be a bug in GCC.
2456 (__detail::__box): Give it defaulted copy and move constructors.
2457 (ranges::views::_Single::operator()): Mark constexpr.
2458 (ranges::views::_Iota::operator()): Mark constexpr.
2459 (__detail::Empty): Define.
2460 (ranges::views::__closure::_RangeAdaptor,
2461 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
2462 ranges::views::all, ranges::__detail::find_if,
2463 ranges::__detail::find_if_not, ranges::__detail::mismatch,
2464 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
2465 ranges::views::transform, take_view, ranges::views::take,
2466 take_while_view, ranges::views::take_while, drop_view,
2467 ranges::views::drop, join_view, ranges::views::join,
2468 __detail::require_constant, __detail::tiny_range, split_view,
2469 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
2470 common_view, ranges::views::common, reverse_view,
2471 ranges::views::reverse,
2472 ranges::views::__detail::__is_reversible_subrange,
2473 ranges::views::__detail::__is_reverse_view, reverse_view,
2474 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
2475 ranges::views::elements, ranges::views::keys, ranges::views::values):
2477 (views): Alias for ranges::views.
2478 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
2479 tuple_element<1, ranges::subrange>): New partial specializations.
2480 * testsuite/std/ranges/adaptors/all.cc: New test.
2481 * testsuite/std/ranges/adaptors/common.cc: Likewise.
2482 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2483 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2484 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2485 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2486 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2487 * testsuite/std/ranges/adaptors/join.cc: Likewise.
2488 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2489 * testsuite/std/ranges/adaptors/split.cc: Likewise.
2490 * testsuite/std/ranges/adaptors/take.cc: Likewise.
2491 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2492 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2494 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2496 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
2497 type of enumerations and comparison category types.
2498 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
2499 (__cmp_cat::_Ncmp::unordered): Change value to 2.
2500 (partial_ordering::_M_value, weak_ordering::_M_value)
2501 (strong_ordering::_M_value): Change type to __cmp_cat::type.
2502 (partial_ordering::_M_is_ordered): Remove data member.
2503 (partial_ordering): Use second bit of _M_value for unordered. Adjust
2504 comparison operators.
2505 (weak_ordering::operator partial_ordering): Simplify to remove
2507 (operator<=>(unspecified, weak_ordering)): Likewise.
2508 (strong_ordering::operator partial_ordering): Likewise.
2509 (strong_ordering::operator weak_ordering): Likewise.
2510 (operator<=>(unspecified, strong_ordering)): Likewise.
2511 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
2512 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
2513 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
2515 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
2516 __cpp_lib_three_way_comparison macro and use deduced return type for
2518 * testsuite/std/ranges/iota/iterator.cc: New test.
2520 2020-02-07 Patrick Palka <ppalka@redhat.com>
2521 Jonathan Wakely <jwakely@redhat.com>
2523 Implement C++20 constrained algorithms
2524 * include/Makefile.am: Add new header.
2525 * include/Makefile.in: Regenerate.
2526 * include/std/algorithm: Include <bits/ranges_algo.h>.
2527 * include/bits/ranges_algo.h: New file.
2528 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
2529 * testsuite/25_algorithms/all_of/constrained.cc: New test.
2530 * testsuite/25_algorithms/any_of/constrained.cc: New test.
2531 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
2532 * testsuite/25_algorithms/copy/constrained.cc: New test.
2533 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
2534 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
2535 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
2536 * testsuite/25_algorithms/count/constrained.cc: New test.
2537 * testsuite/25_algorithms/count_if/constrained.cc: New test.
2538 * testsuite/25_algorithms/equal/constrained.cc: New test.
2539 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
2540 * testsuite/25_algorithms/fill/constrained.cc: New test.
2541 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
2542 * testsuite/25_algorithms/find/constrained.cc: New test.
2543 * testsuite/25_algorithms/find_end/constrained.cc: New test.
2544 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
2545 * testsuite/25_algorithms/find_if/constrained.cc: New test.
2546 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
2547 * testsuite/25_algorithms/for_each/constrained.cc: New test.
2548 * testsuite/25_algorithms/generate/constrained.cc: New test.
2549 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
2550 * testsuite/25_algorithms/heap/constrained.cc: New test.
2551 * testsuite/25_algorithms/includes/constrained.cc: New test.
2552 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
2553 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
2554 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
2555 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
2556 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
2557 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
2559 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
2560 * testsuite/25_algorithms/max/constrained.cc: New test.
2561 * testsuite/25_algorithms/max_element/constrained.cc: New test.
2562 * testsuite/25_algorithms/merge/constrained.cc: New test.
2563 * testsuite/25_algorithms/min/constrained.cc: New test.
2564 * testsuite/25_algorithms/min_element/constrained.cc: New test.
2565 * testsuite/25_algorithms/minmax/constrained.cc: New test.
2566 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
2567 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
2568 * testsuite/25_algorithms/move/constrained.cc: New test.
2569 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
2570 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
2571 * testsuite/25_algorithms/none_of/constrained.cc: New test.
2572 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
2573 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
2574 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
2575 * testsuite/25_algorithms/partition/constrained.cc: New test.
2576 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
2577 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
2578 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
2579 * testsuite/25_algorithms/remove/constrained.cc: New test.
2580 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
2581 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
2582 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
2583 * testsuite/25_algorithms/replace/constrained.cc: New test.
2584 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
2585 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
2586 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
2587 * testsuite/25_algorithms/reverse/constrained.cc: New test.
2588 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
2589 * testsuite/25_algorithms/rotate/constrained.cc: New test.
2590 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
2591 * testsuite/25_algorithms/search/constrained.cc: New test.
2592 * testsuite/25_algorithms/search_n/constrained.cc: New test.
2593 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
2594 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2595 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2597 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2598 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2599 * testsuite/25_algorithms/sort/constrained.cc: New test.
2600 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2601 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2602 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2603 * testsuite/25_algorithms/transform/constrained.cc: New test.
2604 * testsuite/25_algorithms/unique/constrained.cc: New test.
2605 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2606 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2608 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2610 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
2611 number in comment. Fix indentation.
2613 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
2614 redundant _GLIBCXX20_CONSTEXPR.
2616 * include/std/ranges (viewable_range): Replace decay_t with
2617 remove_cvref_t (LWG 3375).
2619 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
2621 * include/bits/iterator_concepts.h (iter_reference_t)
2622 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
2623 Remove workarounds for PR c++/67704.
2624 * testsuite/24_iterators/aliases.cc: New test.
2626 2020-02-05 Patrick Palka <ppalka@redhat.com>
2628 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
2629 when initializing _M_current.
2630 (move_iterator::base): Split into two overloads differing in
2631 ref-qualifiers as in P1207R4 for C++20.
2633 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
2635 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
2639 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
2640 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
2641 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
2643 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
2645 * configure: Regenerate.
2647 2020-01-31 Patrick Palka <ppalka@redhat.com>
2649 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
2650 test_range::end() returns the same type as test_range::begin().
2651 * testsuite/24_iterators/range_operations/next.cc: Likewise.
2652 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
2653 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
2654 Always return a sentinel<I>.
2656 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
2659 * include/std/stop_token (stop_token::stop_possible()): Call new
2660 _M_stop_possible() function.
2661 (stop_token::stop_requested()): Do not use stop_possible().
2662 (stop_token::binary_semaphore): New class, as temporary stand-in for
2663 std::binary_semaphore.
2664 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
2665 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
2666 New data members for symchronization with stop_callback destruction.
2667 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
2668 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
2670 (stop_token::_Stop_cb::_M_run): New member function.
2671 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
2673 (stop_token::_Stop_state::_M_owners): New data member to track
2674 reference count for ownership.
2675 (stop_token::_Stop_state::_M_value): New data member combining a
2676 spinlock, the stop requested flag, and the reference count for
2677 associated stop_source objects.
2678 (stop_token::_Stop_state::_M_requester): New data member for
2679 synchronization with stop_callback destruction.
2680 (stop_token::_Stop_state::_M_stop_possible()): New member function.
2681 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
2683 (stop_token::_Stop_state::_M_add_owner)
2684 (stop_token::_Stop_state::_M_release_ownership)
2685 (stop_token::_Stop_state::_M_add_ssrc)
2686 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
2687 updating reference counts.
2688 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2689 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2690 (stop_token::_Stop_state::_M_try_lock)
2691 (stop_token::_Stop_state::_M_try_lock_and_stop)
2692 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
2694 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
2695 read and update state. Release lock while running callbacks. Use new
2696 data members to synchronize with callback destruction.
2697 (stop_token::_Stop_state::_M_remove_callback): Likewise.
2698 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
2699 to read and update state.
2700 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
2701 replacing shared_ptr.
2702 (stop_source::stop_source(const stop_source&)): Update reference count.
2703 (stop_source::operator=(const stop_source&)): Likewise.
2704 (stop_source::~stop_source()): Likewise.
2705 (stop_source::stop_source(stop_source&&)): Define as defaulted.
2706 (stop_source::operator=(stop_source&&)): Establish postcondition on
2708 (stop_callback): Enforce preconditions on template parameter. Replace
2709 base class with data member of new _Cb_impl type.
2710 (stop_callback::stop_callback(const stop_token&, Cb&&))
2711 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
2712 (stop_callback::_Cb_impl): New type wrapping _Callback member and
2713 defining the _S_execute member function.
2714 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
2716 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
2717 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
2718 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
2720 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
2722 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
2723 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
2724 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
2727 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
2728 three_way_comparable_with.
2729 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
2730 (compare_three_way::operator()): Remove redundant constraint from
2732 (__detail::_Synth3way::operator()): Use three_way_comparable_with
2733 instead of workaround.
2734 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
2735 output due to simplified constraints on compare_three_way::operator().
2738 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
2739 * testsuite/18_support/comparisons/object/93479.cc: New test.
2741 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
2742 returns the same type as test_range::begin(). Add comments.
2743 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2744 * testsuite/std/ranges/access/rend.cc: Likewise.
2745 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
2746 test_range is the same as its iterator type.
2747 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
2748 operator- overloads to satisfy sized_sentinel_for when the iterator
2749 satisfies random_access_iterator.
2751 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
2754 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
2755 static assertion to object types.
2758 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
2759 clock_gettime instead of explicit glibc version check.
2760 * configure: Regenerate.
2762 2020-01-28 Martin Liska <mliska@suse.cz>
2765 * include/std/atomic: Fix typo.
2766 * include/std/optional: Likewise.
2768 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
2770 * configure: Regenerate.
2772 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
2775 * include/std/span (span): Fix deduction guide.
2776 * testsuite/23_containers/span/deduction.cc: New test.
2778 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
2780 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
2781 (__cmp_cat::_Ord::equivalent): Add enumerator.
2782 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
2784 (partial_ordering, weak_ordering, strong_ordering): Remove
2785 constructors taking __cmp_cat::_Eq parameters. Use renamed
2788 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
2790 * acinclude.m4: Handle `--with-toolexeclibdir='.
2791 * Makefile.in: Regenerate.
2792 * aclocal.m4: Regenerate.
2793 * configure: Regenerate.
2794 * doc/Makefile.in: Regenerate.
2795 * include/Makefile.in: Regenerate.
2796 * libsupc++/Makefile.in: Regenerate.
2797 * po/Makefile.in: Regenerate.
2798 * python/Makefile.in: Regenerate.
2799 * src/Makefile.in: Regenerate.
2800 * src/c++11/Makefile.in: Regenerate.
2801 * src/c++17/Makefile.in: Regenerate.
2802 * src/c++98/Makefile.in: Regenerate.
2803 * src/filesystem/Makefile.in: Regenerate.
2804 * testsuite/Makefile.in: Regenerate.
2806 2020-01-23 Alexandre Oliva <oliva@adacore.com>
2808 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
2809 * configure: Rebuild.
2811 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
2813 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
2816 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
2818 * include/Makefile.in: Regenerate.
2820 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
2822 * doc/xml/faq.xml: Fix grammar.
2823 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
2824 * doc/xml/manual/spine.xml: Update copyright years.
2825 * doc/html/*: Regenerate.
2827 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
2829 * doc/xml/faq.xml: Update for SVN -> Git transition.
2830 * doc/xml/manual/appendix_contributing.xml: Likewise.
2831 * doc/xml/manual/status_cxx1998.xml: Likewise.
2832 * doc/xml/manual/status_cxx2011.xml: Likewise.
2833 * doc/xml/manual/status_cxx2014.xml: Likewise.
2834 * doc/xml/manual/status_cxx2017.xml: Likewise.
2835 * doc/xml/manual/status_cxx2020.xml: Likewise.
2836 * doc/xml/manual/status_cxxtr1.xml: Likewise.
2837 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
2839 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
2841 * include/Makefile.am: Add coroutine to the std set.
2842 * include/Makefile.in: Regenerated.
2843 * include/std/coroutine: New file.
2845 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
2848 * include/bits/c++config: Only do PSTL config when the header is
2849 present, to fix freestanding.
2850 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
2851 functions if they were detected by configure.
2853 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
2854 Matthew Bauer <mjbauer95@gmail.com>
2855 Jonathan Wakely <jwakely@redhat.com>
2857 PR bootstrap/64271 (partial)
2858 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
2860 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
2861 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
2862 definitions with NetBSD upstream.
2863 (ctype_base::blank): Use _CTYPE_BL.
2864 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
2866 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
2867 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
2868 parameters to unsigned char.
2869 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
2871 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
2874 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
2875 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
2876 (_Equality_base): Remove.
2877 (_Equality<>::_M_equal): Review implementation. Use
2878 std::is_permutation.
2879 * testsuite/23_containers/unordered_multiset/operators/1.cc
2880 (Hash, Equal, test02, test03): New.
2881 * testsuite/23_containers/unordered_set/operators/1.cc
2882 (Hash, Equal, test02, test03): New.
2884 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
2887 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
2888 Move here from <bits/range_access.h> and define using __int128 when
2890 (__is_integer_like, __is_signed_integer_like): Move here from
2891 <bits/range_access.h>.
2892 (weakly_incrementable): Use __is_signed_integer_like.
2893 * include/bits/range_access.h (__max_diff_type, __max_size_type)
2894 (__is_integer_like, __is_signed_integer_like): Move to
2895 <bits/iterator_concepts.h>.
2896 (__make_unsigned_like_t): Move here from <ranges>.
2897 * include/std/ranges (__make_unsigned_like_t): Move to
2898 <bits/range_access.h>.
2899 (iota_view): Replace using-directive with using-declarations.
2900 * testsuite/std/ranges/iota/93267.cc: New test.
2901 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
2903 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
2906 * include/bits/fs_path.h (path::generic_string<C,A>)
2907 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
2908 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
2909 root-dir is converted to forward slash in generic pathname.
2910 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
2911 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
2914 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
2916 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
2917 (__atomic_float): Add default member initializer for C++20.
2918 * include/std/atomic (atomic): Likewise.
2919 (atomic::atomic()): Remove noexcept-specifier on default constructor.
2920 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
2921 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
2923 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2924 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
2925 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
2926 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
2927 expected result for is_trivially_default_constructible.
2928 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2929 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
2930 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
2931 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2932 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
2933 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
2934 expected results for is_trivially_default_constructible.
2935 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
2938 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
2940 * testsuite/util/testsuite_iterators.h: Improve comment.
2942 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
2943 initialization syntax.
2946 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
2947 of base class independent of __cplusplus value.
2948 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
2949 type defined in the base class
2950 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
2951 * testsuite/24_iterators/istreambuf_iterator/requirements/
2952 base_classes.cc: Adjust expected base class for C++98.
2954 2020-01-09 Olivier Hainque <hainque@adacore.com>
2956 * doc/xml/manual/appendix_contributing.xml: Document _C2
2957 as a reserved identifier, by VxWorks.
2958 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
2959 * include/bits/stl_multimap.h: Likewise.
2961 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2963 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
2964 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
2965 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
2966 partial specialization to disambiguate the two constrained
2969 * include/experimental/type_traits (experimental::is_pod_v): Disable
2970 -Wdeprecated-declarations warnings around reference to std::is_pod.
2971 * include/std/type_traits (is_pod_v): Likewise.
2972 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
2973 is_standard_layout and is_trivial. Do not check is_pod for C++20.
2974 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
2975 Add -Wno-deprecated for C++20.
2976 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
2977 * testsuite/20_util/is_pod/value.cc: Likewise.
2978 * testsuite/experimental/type_traits/value.cc: Likewise.
2980 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
2982 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
2983 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
2984 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
2986 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2989 * include/bits/random.h (operator>>): Check stream operation succeeds.
2990 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
2992 (operator>>): Remove redundant __istream_type typedefs. Check stream
2994 (__extract_params): New function to fill a vector from a stream.
2995 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
2998 * config/abi/pre/gnu.ver: Add new exports.
2999 * include/std/memory_resource (memory_resource::~memory_resource()):
3000 Do not define inline.
3001 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
3002 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
3004 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
3005 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
3007 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
3010 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
3012 (_Hashtable<>::__fwd_value_for): New.
3013 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
3015 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
3016 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
3017 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
3019 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
3020 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
3022 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
3024 * testsuite/23_containers/unordered_set/92124.cc: New.
3026 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
3029 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
3030 detailed error reporting for remove_all. Check result of recursive
3031 call before incrementing iterator.
3032 (remove_all(const path&), remove_all(const path&, error_code&)): Use
3034 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
3035 result of recursive call before incrementing iterator.
3036 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
3037 are reported correctly.
3038 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
3040 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
3042 * include/std/condition_variable
3043 (condition_variable_any::wait_on): Rename to match current draft
3045 (condition_variable_any::wait_on_until): Likewise.
3046 (condition_variable_any::wait_on_for): Likewise.
3047 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
3048 Adjust tests to account for renamed methods.
3050 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
3053 * include/bits/stl_tree.h
3054 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
3055 std::move_if_noexcept by std::move.
3056 * testsuite/23_containers/map/92124.cc: New.
3057 * testsuite/23_containers/set/92124.cc: New.
3059 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
3061 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
3062 (stop_source): Likewise (LWG 3362).
3063 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
3066 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
3067 (lexicographical_compare_three_way): Do not depend on
3069 * include/std/version (__cpp_lib_three_way_comparison): Only define
3070 when __cpp_lib_concepts is defined.
3071 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3073 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
3075 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3076 Only define four-argument overload when __cpp_lib_concepts is defined.
3078 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
3080 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
3082 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3084 Update copyright years.
3086 Copyright (C) 2020 Free Software Foundation, Inc.
3088 Copying and distribution of this file, with or without modification,
3089 are permitted in any medium without royalty provided the copyright
3090 notice and this notice are preserved.