1 2020-07-02 Jonathan Wakely <jwakely@redhat.com>
3 * testsuite/27_io/basic_ios/conv/voidptr.cc: Add c++98_only
6 2020-07-02 Jonathan Wakely <jwakely@redhat.com>
8 * testsuite/18_support/headers/cstdalign/std_c++0x_neg.cc: Add
9 c++98_only target selector.
10 * testsuite/18_support/headers/cstdbool/std_c++0x_neg.cc:
12 * testsuite/18_support/headers/cstdint/std_c++0x_neg.cc:
14 * testsuite/18_support/headers/new/synopsis_cxx98.cc: Likewise.
15 * testsuite/19_diagnostics/headers/system_error/std_c++0x_neg.cc:
17 * testsuite/20_util/headers/type_traits/std_c++0x_neg.cc:
19 * testsuite/23_containers/headers/array/std_c++0x_neg.cc:
21 * testsuite/23_containers/headers/tuple/std_c++0x_neg.cc:
23 * testsuite/23_containers/headers/unordered_map/std_c++0x_neg.cc:
25 * testsuite/23_containers/headers/unordered_set/std_c++0x_neg.cc:
27 * testsuite/26_numerics/headers/ccomplex/std_c++0x_neg.cc:
29 * testsuite/26_numerics/headers/cfenv/std_c++0x_neg.cc:
31 * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++98.cc:
33 * testsuite/26_numerics/headers/ctgmath/std_c++0x_neg.cc:
35 * testsuite/26_numerics/headers/random/std_c++0x_neg.cc:
37 * testsuite/27_io/headers/cinttypes/std_c++0x_neg.cc: Likewise.
38 * testsuite/28_regex/headers/regex/std_c++0x_neg.cc: Likewise.
39 * testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc:
41 * testsuite/30_threads/headers/condition_variable/std_c++0x_neg.cc:
43 * testsuite/30_threads/headers/future/std_c++0x_neg.cc:
45 * testsuite/30_threads/headers/mutex/std_c++0x_neg.cc: Likewise.
46 * testsuite/30_threads/headers/thread/std_c++0x_neg.cc:
49 2020-07-02 Ville Voutilainen <ville.voutilainen@gmail.com>
53 (_Copy_assign_base::operator=(const _Copy_assign_base&):
54 Do the move-assignment from a temporary so that the temporary
55 is constructed with an explicit index.
56 * testsuite/20_util/variant/91807.cc: New.
58 2020-07-02 Jonathan Wakely <jwakely.gcc@gmail.com>
62 * testsuite/29_atomics/atomic_float/1.cc: Use different values
64 * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
66 2020-07-01 Jonathan Wakely <jwakely@redhat.com>
69 * include/bits/regex.h (operator==, operator!=): Remove noexcept
70 equality comparisons for match_results.
71 * testsuite/28_regex/match_results/94627.cc: New test.
73 2020-07-01 Martin Sebor <msebor@redhat.com>
75 * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: Adjust
76 text of expected warning.
77 * testsuite/21_strings/basic_string_view/cons/wchar_t/nonnull.cc: Same.
78 * testsuite/21_strings/basic_string_view/operations/compare/char/nonnull.cc: Same.
79 * testsuite/21_strings/basic_string_view/operations/find/char/nonnull.cc: Same.
80 * testsuite/21_strings/basic_string_view/operations/rfind/char/nonnull.cc: Same.
82 2020-06-29 Ville Voutilainen <ville.voutilainen@gmail.com>
85 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
87 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
88 Add a __nonnull__ attribute.
89 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
90 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
92 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
94 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
95 Add a __nonnull__ attribute.
96 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
97 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
99 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
102 * include/std/type_traits (is_literal_type, is_literal_type_v):
104 * include/std/variant (_Uninitialized):
105 Adjust the condition and the comment.
106 * testsuite/20_util/is_literal_type/deprecated-1z.cc: New.
107 * testsuite/20_util/is_literal_type/requirements/explicit_instantiation.cc:
109 * testsuite/20_util/is_literal_type/requirements/typedefs.cc: Likewise.
110 * testsuite/20_util/is_literal_type/value.cc: Likewise.
111 * testsuite/20_util/optional/constexpr/nullopt.cc:
112 Use __is_literal_type directly.
113 * testsuite/20_util/optional/nullopt.cc: Likewise.
114 * testsuite/20_util/variable_templates_for_traits.cc: Adjust.
115 * testsuite/20_util/variant/95915.cc: New.
116 * testsuite/20_util/variant/compile.cc: Add new test.
117 * testsuite/experimental/optional/constexpr/nullopt.cc:
118 Use __is_literal_type directly.
119 * testsuite/experimental/optional/nullopt.cc: Likewise.
120 * testsuite/experimental/type_traits/value.cc: Adjust.
121 * testsuite/util/testsuite_common_types.h:
122 Use __is_literal_type directly.
124 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
126 * include/std/charconv (__from_chars_binary): Ignore leading zeros.
127 * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
129 * testsuite/20_util/from_chars/3.cc: New test.
131 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
133 * include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
134 * include/std/charconv (__detail::__to_chars): Avoid
135 -Wsign-compare warning.
137 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
140 * include/std/charconv (__to_chars_i): Check for zero-sized
141 buffer unconditionally.
142 * testsuite/20_util/to_chars/95851.cc: New test.
144 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
146 * testsuite/20_util/from_chars/1_c++20_neg.cc: Check enumeration
148 * testsuite/20_util/from_chars/1_neg.cc: Likewise. Move dg-error
149 directives outside preprocessor condition.
151 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
154 * include/std/variant (__detail::__variant::_Build_FUN): Remove
155 partial specialization to prevent narrowing conversions to bool.
156 * testsuite/20_util/variant/compile.cc: Test non-narrowing
158 * testsuite/20_util/variant/run.cc: Likewise.
160 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
162 * doc/Makefile.in: Regenerate.
163 * include/Makefile.in: Regenerate.
164 * libsupc++/Makefile.in: Regenerate.
165 * po/Makefile.in: Regenerate.
166 * python/Makefile.in: Regenerate.
167 * src/Makefile.in: Regenerate.
168 * src/c++11/Makefile.in: Regenerate.
169 * src/c++17/Makefile.in: Regenerate.
170 * src/c++98/Makefile.in: Regenerate.
171 * src/filesystem/Makefile.in: Regenerate.
172 * testsuite/Makefile.in: Regenerate.
174 2020-06-22 David Edelsohn <dje.gcc@gmail.com>
176 * Makefile.am: Use -include.
177 * Makefile.in: Regenerate.
179 2020-06-21 David Edelsohn <dje.gcc@gmail.com>
181 * Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
182 * Makefile.in: Regenerate.
183 * configure.ac (tmake_file): Substitute.
184 * configure: Regenerate.
185 * configure.host (aix*): Define tmake_file.
186 * config/os/aix/t-aix: New file.
188 2020-06-20 Jason Merrill <jason@redhat.com>
190 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
191 Remove greedy_ops tests.
192 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
193 Remove greedy_ops tests.
195 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
198 * include/bits/stl_algobase.h (__size_to_integer(float))
199 (__size_to_integer(double), __size_to_integer(long double))
200 (__size_to_integer(__float128)): Cast return type explicitly.
201 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
202 Remove unused typedef.
204 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
206 * include/bits/stl_pair.h (_Index_tuple): Remove redundant
207 namespace qualification.
208 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
210 * include/std/tuple (_Head_base, _Tuple_impl, tuple_size)
211 (tuple_element, __get_helper, get, __make_tuple_impl)
212 (__make_1st_indices, __tuple_concater)
213 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
215 * include/std/utility (tuple_element, __is_tuple_like_impl)
216 (tuple_size, __pair_get, get): Likewise.
218 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
220 * include/bits/std_function.h (function): Define all member
223 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
225 * include/bits/stl_algo.h (__includes): Simplify the code.
227 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
229 * include/std/optional (optional()): Explicitly define it.
231 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
234 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
235 Construct the first value at *__first instead of on the stack.
236 (__uninitialized_default_n_1<true>): Likewise.
237 Improve comments on several of the non-standard algorithms.
238 * testsuite/20_util/specialized_algorithms/uninitialized_default/94540.cc:
240 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/94540.cc:
242 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/94540.cc:
244 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/94540.cc:
246 * testsuite/23_containers/vector/cons/94540.cc: New test.
248 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
250 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
251 Replace Value type with int so trivial code path is used.
252 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
255 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
257 * include/bits/stl_uninitialized.h (uninitialized_fill_n): Only
258 use std::fill_n when the size is an integral type.
259 (__uninitialized_default_n): Likewise.
260 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
262 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc:
264 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
267 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
270 * include/bits/atomic_base.h (__atomic_impl::load): Use the _Val
271 alias instead of deducing _Tp as an unqualified type.
272 (__atomic_impl::exchange): Use the _Val alias to remove volatile
273 from the reinterpret_cast result type.
275 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
277 * include/std/atomic (atomic): Add static assertions.
278 * testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
280 2020-06-16 Patrick Palka <ppalka@redhat.com>
283 * testsuite/20_util/is_constructible/94003.cc: New test.
285 2020-06-15 Jonathan Wakely <jwakely@redhat.com>
287 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
288 Update value for C++20.
289 * include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
290 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
291 Update expected value.
292 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
295 2020-06-15 Paul Keir <paul.keir@uws.ac.uk>
297 * include/bits/char_traits.h (char_traits::move): constexpr move with
298 overlap was using copy_backward incorrectly.
299 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
302 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
304 * testsuite/29_atomics/atomic_flag/clear/1.cc: Also test clear()
305 when the value is currently set.
306 * testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc:
307 Actually check the return value.
308 * testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc:
311 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
313 * include/bits/atomic_base.h (atomic_flag::test): Add missing
315 * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
316 dg-options and verify results of test function.
317 * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
319 2020-06-11 Jonathan Wakely <jwakely@redhat.com>
322 * include/bits/istream.tcc (basic_istream::ignore(streamsize, CharT)):
323 Only discard an extra character if we didn't already reach the
325 * src/c++98/istream.cc (istream::ignore(streamsiz, char))
326 (wistream::ignore(streamsize, wchar_t)): Likewise.
327 * testsuite/27_io/basic_istream/ignore/char/94749.cc: New test.
328 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc: New test.
330 2020-06-10 Patrick Palka <ppalka@redhat.com>
333 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
334 Also check that the iterator and sentinel have the same type before
335 applying the unwrapping optimization for __normal_iterator.
336 Split the check into two, one for the first iterator/sentinel
337 pair and another for second iterator/sentinel pair. Remove uses
338 of __niter_base, and remove uses of std::move on a
340 * include/bits/ranges_algobase.h (__equal_fn): Likewise.
341 (__copy_or_move): Likewise. Perform similar adjustments for
342 the reverse_iterator and move_iterator optimizations. Inline
343 the checks into the if-constexprs, and use using-declarations to
344 make them less visually noisy. Remove uses of __niter_wrap.
345 (__copy_or_move_backward): Likewise.
346 * testsuite/25_algorithms/copy/95578.cc: New test.
347 * testsuite/25_algorithms/copy_backward/95578.cc: New test.
348 * testsuite/25_algorithms/equal/95578.cc: New test.
349 * testsuite/25_algorithms/lexicographical_compare/95578.cc: New test.
350 * testsuite/25_algorithms/move/95578.cc: New test.
351 * testsuite/25_algorithms/move_backward/95578.cc: New test.
353 2020-06-10 François Dumont <fdumont@gcc.gnu.org>
354 Jonathan Wakely <jwakely@redhat.com>
356 * include/bits/deque.tcc (__lex_cmp_dit): New.
357 (__lexicographical_compare_aux1): Define overloads for deque
359 * include/bits/stl_algobase.h (__lexicographical_compare::__3way):
360 New static member function.
361 (__lexicographical_compare<true>::__3way): Likewise.
362 (__lexicographical_compare<true>::__lc): Use __3way.
363 (__lexicographical_compare_aux): Rename to
364 __lexicographical_compare_aux1 and declare overloads for deque
366 (__lexicographical_compare_aux): Define new forwarding function
367 that calls __lexicographical_compare_aux1 and declare new overloads
369 (lexicographical_compare): Do not use __niter_base on
371 * include/debug/safe_iterator.tcc
372 (__lexicographical_compare_aux): Define overloads for safe
374 * testsuite/25_algorithms/lexicographical_compare/1.cc: Add
375 checks with random access iterators.
376 * testsuite/25_algorithms/lexicographical_compare/deque_iterators/1.cc:
379 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
381 * include/bits/stl_iterator.h (move_iterator::operator=): Define.
382 * testsuite/24_iterators/move_iterator/dr3265.cc: New test.
384 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
386 * include/std/optional (bad_optional_access): Define default
387 constructor and destructor as defaulted.
388 * testsuite/20_util/optional/bad_access.cc: New test.
390 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
392 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
394 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
396 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
398 * include/bits/unique_ptr.h (operator<<): Define for C++20.
399 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
401 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
403 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
404 (__detail::__cat, __detail::__diff): Move to class scope in the
405 relevant __iterator_traits specializations.
406 (__iterator_traits<>): Use nested class templates instead of ones from
408 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
409 class scope in iterator_traits<common_iterator<I, S>>.
410 (iterator_traits<common_iterator<I, S>>): Use nested class template
411 instead of __detail::__common_iter_ptr.
413 2020-06-04 François Dumont <fdumont@gcc.gnu.org>
415 * include/bits/stl_algo.h (__copy_n_a): Move to ...
416 * include/bits/stl_algobase.h (__copy_n_a): ...here. Add __strict
418 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
420 (__niter_base(const _Safe_iterator<_Ite, _Seq,
421 random_access_iterator_tag>&)): Declare.
422 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
423 _Deque_iterator<>)): Declare.
424 * include/bits/deque.tcc
425 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
426 _Deque_iterator<>)): New.
427 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
429 * include/bits/streambuf_iterator.h
430 (__copy_n_a(istreambuf_iterator<>, _Size, _CharT*, bool)): Adapt.
431 * include/debug/safe_iterator.tcc (__niter_base): New.
432 * testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc
434 * testsuite/25_algorithms/copy/streambuf_iterators/char/debug/deque_neg.cc:
436 * testsuite/25_algorithms/copy_n/debug/istreambuf_ite_deque_neg.cc:
438 * testsuite/25_algorithms/copy_n/istreambuf_iterator/2.cc: New test.
439 * testsuite/25_algorithms/copy_n/istreambuf_iterator/deque.cc:
442 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
444 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
445 ranges::copy for positive values.
446 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
447 integral type and only call __copy_n for positive values.
448 * testsuite/util/testsuite_iterators.h
449 (random_access_iterator_wrapper::operator+=): Fix range check for
451 (output_container, input_container, forward_container)
452 (bidirectional_container, random_access_container): New alias
454 * testsuite/25_algorithms/copy_n/5.cc: New test.
456 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
459 * include/debug/deque (deque(const _Base&)): Replace parameter
460 with a struct that wraps a const _Base&.
461 * include/debug/forward_list (forward_list(_Base_ref)): New
463 * include/debug/list (list(const _Base&)): Replace parameter
464 with a struct that wraps a const _Base&.
465 * include/debug/map.h (map(const _Base&)): Likewise.
466 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
467 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
468 * include/debug/set.h (set(const _Base&)): Likewise.
469 * include/debug/unordered_map (unordered_map(const _Base&))
470 (unordered_multimap(const _Base&)): Likewise.
471 * include/debug/unordered_set (unordered_set(const _Base&))
472 (unordered_multiset(const _Base&)): Likewise.
473 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
474 Adjust dg-error line number.
475 * include/debug/vector (vector(const _Base&)): Likewise.
476 * testsuite/23_containers/deque/debug/90102.cc: New test.
477 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
478 * testsuite/23_containers/list/debug/90102.cc: New test.
479 * testsuite/23_containers/map/debug/90102.cc: New test.
480 * testsuite/23_containers/multimap/debug/90102.cc: New test.
481 * testsuite/23_containers/multiset/debug/90102.cc: New test.
482 * testsuite/23_containers/set/debug/90102.cc: New test.
483 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
484 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
485 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
486 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
487 * testsuite/23_containers/vector/debug/90102.cc: New test.
489 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
492 * include/bits/fs_path.h (path::_S_to_string): Move to
493 namespace-scope and rename to ...
494 (__detail::__string_from_range): ... this.
495 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
496 convert a char sequence containing UTF-8 to wstring.
497 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
498 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
499 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
500 __string_from_range to obtain a contiguous range and
501 __wstr_from_utf8 to obtain a wide string.
502 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
503 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
505 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
506 Use __wstr_from_utf8.
508 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
510 * testsuite/util/testsuite_iterators.h:
511 (input_iterator_wrapper::operator++(int)): Return proxy object.
513 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
515 * doc/xml/manual/evolution.xml: Document deprecation of
516 __is_nullptr_t and removal of std::allocator members.
517 * doc/html/manual/api.html: Regenerate.
519 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
521 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
522 * doc/xml/manual/evolution.xml: Likewise.
523 * doc/html/manual/api.html: Regenerate.
524 * doc/html/manual/containers.html: Regenerate.
526 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
528 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
529 * doc/html/faq.html: Regenerate.
531 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
533 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
536 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
538 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
539 www.cs.princeton.edu to https.
540 * doc/html/manual/policy_data_structures.html: Regenerate.
542 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
544 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
545 * configure: Rebuild.
547 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
550 * configure: Regenerated.
552 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
555 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
556 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
557 (unordered_map<>::insert_or_assign): Adapt.
559 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
562 * include/bits/atomic_base.h (__atomic_impl::load): Add
563 cv-qualifiers to parameter so that _Tp is deduced as the
565 * testsuite/29_atomics/atomic_float/95282.cc: New test.
567 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
570 * include/std/ranges (transform_view::_Sentinel): Allow hidden
571 friends to work with _Iterator<true> and _Iterator<false>.
572 (join_view::_Sentinel): Likewise.
573 * testsuite/std/ranges/adaptors/95322.cc: New test.
575 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
578 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
579 operators to use the correct operations on the underlying
581 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
583 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
585 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
587 2020-05-26 Patrick Palka <ppalka@redhat.com>
590 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
591 Remove and instead define it ...
592 (common_iterator::_Proxy): ... here.
593 (common_iterator::operator->): Use it.
594 * testsuite/24_iterators/common_iterator/2.cc: New test.
595 * testsuite/std/ranges/adaptors/95322.cc: New test.
597 2020-05-23 Patrick Palka <ppalka@redhat.com>
600 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
601 dg-additional-options. Avoid unused-but-set-variable warning.
603 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
606 * include/debug/helper_functions.h (__get_distance): Only declare
607 as a constexpr function for C++14 and up.
608 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
610 * include/bits/fs_path.h (__detail::_S_range_begin)
611 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
612 overloaded function template __detail::__effective_range.
613 (__detail::__effective_range): New overloaded function template to
614 create a basic_string or basic_string_view for an effective range.
615 (__detail::__value_type_is_char): Use __detail::__effective_range.
616 Do not use remove_const on value type.
617 (__detail::__value_type_is_char_or_char8_t): Likewise.
618 (path::path(const Source&, format))
619 (path::path(const Source&, const locale&))
620 (path::operator/=(const Source&), path::append(const Source&))
621 (path::concat(const Source&)): Use __detail::__effective_range.
622 (path::_S_to_string(InputIterator, InputIterator)): New function
623 template to create a string view if possible, or string otherwise.
624 (path::_S_convert): Add overloads that convert a string returned
625 by __detail::__effective_range. Use if-constexpr to inline conversion
626 logic from all overloads of _Cvt::_S_convert.
627 (path::_S_convert_loc): Add overload that converts a string. Use
628 _S_to_string to avoid allocation when possible.
629 (path::_Cvt): Remove.
630 (path::operator+=(CharT)): Remove indirection through path::concat.
631 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
632 overload for non-const pointers, to avoid constructing a std::string.
633 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
634 compilation with call to _S_convert.
636 * include/bits/fs_path.h (__detail::_S_range_begin)
637 (__detail::_S_range_end): Remove unintentional static specifiers.
638 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
639 (__detail::_S_range_end): Likewise.
641 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
642 Replace alias template with variable template. Don't remove const.
643 (filesystem::__detail::__is_path_src): Replace overloaded function
644 template with variable template and specializations.
645 (filesystem::__detail::__is_path_iter_src): Replace alias template
647 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
649 (filesystem::__detail::_Path2): New alias template for checking
650 InputIterator requirements.
651 (filesystem::__detail::__constructible_from): Remove.
652 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
653 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
654 constructor arguments of void and void* types.
656 2020-05-21 Matthias Kretz <kretz@kde.org>
658 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
659 allowing runtest to work without arguments.
660 * testsuite/Makefile.in: Regenerate.
662 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
665 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
666 Reorder constraints to avoid recursion when constructors use
667 iterator_traits (LWG 3420).
668 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
670 * include/experimental/socket (basic_socket::is_open()
671 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
673 * include/experimental/bits/net.h (__endpoint, __protocol)
674 (__acceptable_protocol, __inet_protocol): New concepts.
675 (__detail::__is_endpoint): Move trait from <experimental/socket>.
676 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
678 (__endpoint, __protocol, __acceptable_protocol): New variable
680 * include/experimental/socket (__is_endpoint): Move to net.h header.
681 (basic_socket, basic_socket_acceptor): Check requirements.
683 * include/experimental/executor (use_future_t::use_future_t()): Fix
684 incorrect noexcept-specifier.
685 * include/experimental/internet (basic_resolver_results): Adjust
687 * include/experimental/socket (__basic_socket_impl::release): Add
689 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
691 (basic_socket::release(), basic_socket::release(error_code&)): Add
692 missing member functions.
693 (basic_socket::is_open()): Add nodiscard attribute.
694 (basic_socket::close(error_code&)): Pass argument to base function.
695 (basic_socket_acceptor::release())
696 (basic_socket_acceptor::release(error_code&)): Add missing member
698 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
699 (basic_socket_streambuf::error()): Add noexcept.
700 (basic_socket_iostream::error()): Likewise.
701 * testsuite/experimental/net/socket/basic_socket.cc: New test.
703 * include/experimental/buffer: Replace typedefs with
705 * include/experimental/executor: Likewise.
706 * include/experimental/internet: Likewise.
707 * include/experimental/socket: Likewise.
708 * include/experimental/timer: Likewise.
710 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
713 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
715 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
717 (random_device::_M_init): Use __x86_rdseed_rdrand when both
718 instructions are available.
719 * testsuite/26_numerics/random/random_device/94087.cc: New test.
721 2020-05-19 Patrick Palka <ppalka@redhat.com>
724 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
726 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
728 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
731 * configure: Regenerated.
733 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
735 * configure: Regenerated.
737 2020-05-13 Alexandre Oliva <oliva@adacore.com>
740 * include/experimental/memory_resource
741 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
742 x86-vxworks as on x86-solaris.
743 (__resource_adaptor_imp::do_deallocate): Likewise.
744 * testsuite/experimental/memory_resource/new_delete_resource.cc:
746 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
747 (test03): Drop max-align test for char-aligned alloc.
749 2020-05-08 Ulrich Drepper <drepper@redhat.com>
751 * include/bits/atomic_base.h (atomic_flag): Implement test member
753 * include/std/version: Define __cpp_lib_atomic_flag_test.
754 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
755 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
757 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
759 PR libstdc++/94971 (partial)
760 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
761 std::sample using macro to work in parallel mode.
762 (__sort_fn): Likewise for std::sort.
763 (ranges::__nth_element_fn): Likewise for std::nth_element.
764 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
765 Likewise for std::__min_cmp.
766 * include/parallel/algobase.h (lexicographical_compare_three_way):
767 Add to namespace std::__parallel.
770 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
771 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
772 (_UnguardedIterator::operator _RAIter): Add const qualifier.
773 (operator<(_GuardedIterator&, _GuardedIterator&)
774 (operator<=(_GuardedIterator&, _GuardedIterator&)
775 (operator<(_UnguardedIterator&, _UnguardedIterator&)
776 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
777 parameters to const references.
779 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
781 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
782 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
784 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
786 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
787 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
788 * include/bits/stl_bvector.h (__fill_bvector): Move outside
789 _GLIBCXX_STD_C namespace.
790 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
792 (__fill_a1): ...this.
793 * testsuite/25_algorithms/fill/bvector/1.cc: New.
795 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
797 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
799 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
801 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
802 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
804 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
805 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
808 2020-05-06 Martin Liska <mliska@suse.cz>
811 2020-05-05 Martin Liska <mliska@suse.cz>
813 * include/parallel/multiway_merge.h:
814 Use const for _Compare template argument.
816 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
818 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
819 versions for GCC 9.[123] and 10.1 releases.
820 * doc/html/*: Regenerate.
822 2020-05-06 Jakub Jelinek <jakub@redhat.com>
824 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
825 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
826 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
827 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
828 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
829 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
830 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
832 2020-05-05 Martin Liska <mliska@suse.cz>
835 * include/parallel/multiway_merge.h:
836 Use const for _Compare template argument.
838 2020-05-04 Fangrui Song <maskray@google.com>
840 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
842 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
844 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
845 * doc/html/*: Regenerate.
848 * src/c++17/memory_resource.cc
849 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
852 2020-05-04 Nathan Sidwell <nathan@acm.org>
855 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
856 ptrdiff_t before negation, to show intent more clearly.
858 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
861 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
862 Add comment about single-threaded behaviour.
863 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
864 class member access out of loop.
865 (synchronized_pool_resource::synchronized_pool_resource())
866 (synchronized_pool_resource::~synchronized_pool_resource())
867 (synchronized_pool_resource::release()): Check __gthread_active_p
868 before creating and/or deleting the thread-specific data key.
869 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
871 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
872 path for single-threaded case.
873 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
874 Likewise. Return if unable to find a pool that owns the allocation.
875 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
877 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
879 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
882 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
885 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
886 usable in constant expressions.
887 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
890 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
893 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
895 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
896 Patrick Palka <ppalka@redhat.com>
899 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
900 Add trait to determine return type and an alias for it.
901 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
903 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
904 the result of ranges::iter_move.
905 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
906 instead of checking the result of ranges::iter_move.
907 * testsuite/24_iterators/customization_points/92894.cc: New test.
908 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
910 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
913 * include/std/type_traits (__is_complete_or_unbounded): Replace
915 * testsuite/17_intro/badnames.cc: New test.
917 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
920 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
921 (allocator_traits::_S_destroy)
922 (allocator_traits<allocator<T>>::construct): Use traits in
924 * include/bits/allocator.h (allocator<void>::construct)
925 (allocator<void>::destroy): Likewise.
926 * include/ext/malloc_allocator.h (malloc_allocator::construct)
927 (malloc_allocator::destroy): Likewise.
928 * include/ext/new_allocator.h (new_allocator::construct)
929 (new_allocator::destroy): Likewise.
930 * testsuite/20_util/allocator/89510.cc: New test.
931 * testsuite/ext/malloc_allocator/89510.cc: New test.
932 * testsuite/ext/new_allocator/89510.cc: New test.
934 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
937 * include/bits/basic_string.tcc: Update comment about explicit
940 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
943 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
944 Remove non-standard macro.
945 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
946 to indicate P1032R1 support.
947 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
948 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
949 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
950 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
951 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
952 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
953 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
955 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
956 * testsuite/21_strings/basic_string_view/operations/copy/char/
957 constexpr.cc: Likewise.
958 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
961 * include/bits/alloc_traits.h (_S_construct): Restore placement
962 new-expression for C++11/14/17 and call std::construct_at directly
964 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
965 function returning void.
966 * testsuite/20_util/specialized_algorithms/
967 uninitialized_value_construct/94831.cc: New test.
968 * testsuite/23_containers/vector/cons/94831.cc: New test.
970 2020-04-28 Patrick Palka <ppalka@redhat.com>
972 LWG 3433 subrange::advance(n) has UB when n < 0
973 * include/std/ranges (subrange::prev): Fix typo.
974 (subrange::advance): Handle a negative argument as per the proposed
975 resolution of LWG 3433.
976 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
978 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
979 Iain Sandoe <iain@sandoe.co.uk>
982 * include/std/coroutine: Implement handing for non-
983 class coroutine return types.
985 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
987 * include/experimental/executor (service_already_exists): Make default
988 constructor public (LWG 3414).
989 * testsuite/experimental/net/execution_context/make_service.cc: Check
990 the service_already_exists can be default constructed.
992 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
993 Jonathan Wakely <jwakely@redhat.com>
997 * include/std/any (any): Rename template parameters for consistency
999 (any::_Decay): Rename to _Decay_if_not_any.
1000 (any::any(T&&):: Remove is_constructible from constraints. Remove
1001 non-standard overload.
1002 (any::any(in_place_type_t<T>, Args&&...))
1003 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
1004 (any::emplace(Args&&...))
1005 (any::emplace(initializer_list<U>, Args&&...)):
1006 Use decay_t instead of _Decay.
1007 * testsuite/20_util/any/cons/90415.cc: New test.
1008 * testsuite/20_util/any/cons/92156.cc: New Test.
1009 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
1011 * testsuite/20_util/any/modifiers/92156.cc: New test.
1013 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
1015 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
1016 * doc/html/*: Regenerate.
1018 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
1019 value for C++17 to 201803L because P0858R0 is supported for C++17.
1020 * include/std/version (__cpp_lib_array_constexpr): Likewise.
1021 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
1022 Check for value corresponding to P0031R0 features being tested.
1023 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
1024 Check for value corresponding to P0858R0 features being tested.
1026 * include/std/version (__cpp_lib_three_way_comparison): Define for
1027 freestanding builds.
1029 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
1031 * include/experimental/net/executor (system_context): Mark
1032 system_context::system_context() = delete.
1033 * testsuite/experimental/net/executor/1.cc: Add new
1034 test to check system_context is not default constructible.
1036 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
1038 * include/std/coroutine: Update the inline namespace to __n4861.
1039 Add the __cpp_lib_coroutine define, set to 201902L.
1040 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
1042 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
1044 * include/std/execution (__cpp_lib_execution): Define to indicate
1045 support for P0024R2 and P1001R2.
1046 * include/std/version (__cpp_lib_execution): Define.
1047 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
1048 defined by <algorithm>, move other tests to new tests ...
1049 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
1050 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
1051 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
1052 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
1054 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
1055 different values for C++17 and C++20, to indicate different feature
1056 sets. Update value for C++20 to indicate P1032R1 support.
1057 * include/std/version (__cpp_lib_array_constexpr): Likewise.
1058 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
1059 Check feature test macro.
1060 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
1062 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
1064 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
1065 in C++17 mode and check feature test macro.
1067 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
1069 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
1070 defined by <utility>.
1072 * include/std/functional (__cpp_lib_concepts): Update macro value to
1073 indicate P1964R2 support.
1074 * include/std/version (__cpp_lib_concepts): Likewise.
1075 * testsuite/std/concepts/1.cc: Adjust expected value.
1076 * testsuite/std/concepts/2.cc: Likewise.
1078 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
1079 __cpp_lib_constexpr_functional.
1080 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
1081 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
1083 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
1084 indicate P1006R1 support.
1085 (__cpp_lib_to_address): Define to indicate P0653R2 support.
1086 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
1088 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
1090 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
1092 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
1094 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
1095 Define to indicate P0339R6 support.
1096 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
1097 indicate P0457R2 support.
1098 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
1099 to indicate P0758R1 support.
1100 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
1101 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
1102 * include/std/version (__cpp_lib_atomic_float)
1103 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
1104 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
1105 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
1106 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
1107 (__cpp_lib_to_address): Define.
1108 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
1110 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
1112 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
1114 * include/std/version (__cpp_lib_map_insertion)
1115 (__cpp_lib_unordered_map_insertion): Remove.
1117 * include/std/condition_variable (__cpp_lib_jthread): Remove
1118 redundant definition.
1119 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
1120 indicate P1869R1 support.
1121 * include/std/version (__cpp_lib_jthread): Update value.
1122 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
1123 for updated macro value.
1124 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
1126 * testsuite/30_threads/jthread/1.cc: Likewise.
1127 * testsuite/30_threads/jthread/2.cc: Likewise.
1128 * testsuite/30_threads/stop_token/1.cc: Likewise.
1129 * testsuite/30_threads/stop_token/2.cc: Likewise.
1131 * testsuite/21_strings/basic_string/erasure.cc: Check for
1132 __cpp_lib_erase_if macro.
1133 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
1135 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1136 * testsuite/23_containers/list/erasure.cc: Likewise.
1137 * testsuite/23_containers/map/erasure.cc: Likewise.
1138 * testsuite/23_containers/set/erasure.cc: Likewise.
1139 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1140 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1141 * testsuite/23_containers/vector/erasure.cc: Likewise.
1143 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
1145 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
1146 to define operator<=>.
1147 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
1149 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
1150 * doc/Makefile.in: Regenerate.
1151 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
1153 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
1154 to the C++11 status table.
1155 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
1156 proposals with table matching contents of the C++14 standard.
1157 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
1159 * doc/html/*: Regenerate.
1162 * include/std/type_traits (__is_nt_constructible_impl): Add partial
1163 specializations for bounded arrays with non-empty initializers.
1164 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
1166 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
1168 * testsuite/lib/libstdc++.exp: Add additional_flags=
1169 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
1170 compiling with a newer Thread Building Blocks.
1172 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
1174 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1176 * testsuite/20_util/is_constructible/51185.cc: Make test class a
1177 non-aggregate so that the test verifies the same thing in all -std
1179 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
1180 results for some types when paren-init for aggregates is supported.
1182 * include/std/version (__cpp_lib_three_way_comparison): Update value.
1183 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
1184 (__detail::__synth3way): Add noexcept-specifier.
1186 * include/bits/stl_map.h (map): Define operator<=> and remove
1187 operator< for C++20.
1188 * include/bits/stl_multimap.h (multimap): Likewise.
1189 * include/bits/stl_multiset.h (multiset): Likewise.
1190 * include/bits/stl_set.h (set): Likewise.
1191 * include/bits/stl_tree.h (_Rb_tree): Likewise.
1192 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
1193 operator!= for C++20.
1194 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
1195 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
1196 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
1197 * include/debug/set.h (__gnu_debug::set): Likewise.
1198 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
1199 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
1200 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
1201 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
1203 2020-04-20 Matthias Kretz <kretz@kde.org>
1205 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
1207 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
1209 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
1210 * include/bits/stl_stack.h (stack): Likewise.
1211 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
1212 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
1214 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
1215 Remove redundant operator!= for C++20.
1216 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
1218 * include/debug/unordered_map (unordered_map, unordered_multimap):
1220 * include/debug/unordered_set (unordered_set, unordered_multiset):
1224 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
1225 redundant assignment in constructor.
1227 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
1229 * include/std/chrono (duration, time_point): Define operator<=> and
1230 remove redundant operator!= for C++20.
1231 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
1233 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
1236 * testsuite/util/native_type/native_priority_queue.hpp: Use
1237 allocator_traits to rebind allocator.
1239 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
1241 * include/bits/forward_list.h (forward_list): Define operator<=> and
1242 remove redundant comparison operators for C++20.
1243 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
1244 * include/bits/stl_deque.h (deque): Likewise.
1245 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
1246 * include/bits/stl_list.h (list): Likewise.
1247 * include/bits/stl_vector.h (vector): Likewise.
1248 * include/debug/deque (__gnu_debug::deque): Likewise.
1249 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
1250 * include/debug/list (__gnu_debug::list): Likewise.
1251 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
1253 * include/debug/vector (__gnu_debug::vector): Likewise.
1254 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
1255 operator<=> for C++20.
1256 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
1257 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
1258 * testsuite/23_containers/list/cmp_c++20.cc: New test.
1259 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
1260 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
1262 * include/bits/basic_string.h (basic_string): Define operator<=> and
1263 remove redundant comparison operators for C++20.
1264 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
1265 Add comparison_category members.
1266 (__detail::__char_traits_cmp_cat): New helper to get comparison
1267 category from char traits class.
1268 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
1270 (sub_match): Define operator<=> and remove redundant comparison
1271 operators for C++20.
1272 (match_results): Remove redundant operator!= for C++20.
1273 * include/std/string_view (basic_string_view): Define operator<=> and
1274 remove redundant comparison operators for C++20.
1275 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
1277 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
1279 * testsuite/21_strings/basic_string_view/operations/copy/char/
1280 constexpr.cc: Initialize variable.
1281 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
1282 constexpr.cc: Likewise.
1283 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
1284 dg-do directive and remove comments showing incorrect signatures.
1285 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
1287 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
1289 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
1291 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
1293 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
1295 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
1296 name of unused parameter.
1298 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
1300 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
1301 (directory_entry): Define operator<=> and remove redundant comparison
1302 operators for C++20.
1303 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
1304 * include/bits/fs_path.h (path): Define operator<=> and remove
1305 redundant comparison operators for C++20.
1306 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
1307 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
1308 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
1309 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
1311 * include/bits/allocator.h (operator!=): Do not define for C++20.
1312 * include/bits/locale_classes.h (operator!=): Likewise.
1313 * include/bits/std_function.h (operator==(nullptr_t, const function&))
1314 (operator!=(const function&, nullptr_t))
1315 (operator!=(nullptr_t, const function&)): Likewise.
1316 * include/ext/bitmap_allocator.h (operator!=): Likewise.
1317 * include/ext/debug_allocator.h (operator!=): Likewise.
1318 * include/ext/extptr_allocator.h (operator!=): Likewise.
1319 * include/ext/malloc_allocator.h (operator!=): Likewise.
1320 * include/ext/mt_allocator.h (operator!=): Likewise.
1321 * include/ext/new_allocator.h (operator!=): Likewise.
1322 * include/ext/pool_allocator.h (operator!=): Likewise.
1323 * include/ext/throw_allocator.h (operator!=): Likewise.
1324 * include/std/bitset (bitset::operator!=): Likewise.
1325 * include/std/memory_resource (operator!=): Likewise.
1326 * include/std/scoped_allocator (operator!=): Likewise.
1328 * include/std/typeindex (operator<=>): Define for C++20.
1329 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
1331 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
1333 * libsupc++/compare (compare_three_way): Fix constraint so that
1334 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
1335 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
1339 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
1340 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
1341 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
1342 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
1343 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
1344 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
1348 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
1349 * testsuite/18_support/comparisons/categories/94565.cc: New test.
1351 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
1353 * include/std/coroutine: Update coroutines builtin define,
1356 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
1358 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
1359 (strong_order, weak_order, partial_order): Replace uses of <=> with
1360 compare_three_way function object (LWG 3324).
1361 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
1362 equality operator so that X satisfies three_way_comparable.
1363 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
1365 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
1367 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
1368 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
1369 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
1370 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
1371 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
1373 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
1375 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
1377 * include/std/complex (operator==(const T&, const complex<T>&))
1378 (operator!=(const complex<T>&, const complex<T>&))
1379 (operator!=(const complex<T>&, const T&))
1380 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
1381 * testsuite/26_numerics/slice/compare.cc: New test.
1383 * include/std/charconv (to_chars_result, from_chars_result): Add
1384 defaulted equality comparisons for C++20.
1385 * testsuite/20_util/from_chars/compare.cc: New test.
1386 * testsuite/20_util/to_chars/compare.cc: New test.
1388 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
1391 * include/std/charconv (__integer_to_chars_result_type)
1392 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
1394 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
1395 use of std::string_view with std::string.
1396 * testsuite/20_util/from_chars/2.cc: Likewise.
1397 * testsuite/20_util/to_chars/1.cc: Likewise.
1398 * testsuite/20_util/to_chars/2.cc: Likewise.
1400 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
1403 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
1404 usable in constant expressions for C++20.
1405 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
1406 _GLIBCXX20_CONSTEXPR.
1407 (std::char_traits<char>, std::char_traits<wchar_t>)
1408 (std::char_traits<char8_t>): Make move, copy and assign usable in
1409 constant expressions for C++20.
1410 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
1411 and copy usable in constant expressions for C++20.
1412 * include/std/string_view (basic_string_view::copy): Add
1413 _GLIBCXX20_CONSTEXPR.
1414 * testsuite/21_strings/basic_string_view/operations/copy/char/
1415 constexpr.cc: New test.
1416 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
1417 constexpr.cc: New test.
1419 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
1421 * doc/xml/manual/appendix_contributing.xml: Refer to Git
1422 documentation instead of Subversion. Switch to https.
1423 * doc/html/manual/appendix_contributing.html: Regenerate.
1425 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
1428 * include/bits/ptr_traits.h (__to_address): Add special case for debug
1429 iterators, to avoid dereferenceable check.
1430 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
1431 * testsuite/20_util/to_address/debug.cc: New test.
1433 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
1435 * testsuite/experimental/net/execution_context/use_service.cc:
1436 Require pthread and gthreads.
1438 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
1440 * doc/xml/manual/appendix_free.xml: Move "free books" list from
1442 * doc/html/manual/appendix_free.html: Regenerate.
1444 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
1446 Library-side tests for parenthesized aggregate init
1451 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
1452 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1453 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1454 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1455 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
1456 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1457 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1458 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
1459 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1461 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
1462 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1463 * testsuite/20_util/variant/92878_92947.cc: Likewise.
1464 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1466 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1468 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1470 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1472 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1474 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1476 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
1477 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1478 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1480 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1481 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1483 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1485 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1487 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1489 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1492 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
1494 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
1495 for changes due to parenthesized aggregate-initialization in C++20.
1496 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
1497 with std::chrono::sys_time in C++20.
1499 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
1500 to constrain C++20 versions of comparison operators. Fix backwards
1501 logic of relational operators.
1502 (move_iterator): Use requires-clause to constrain comparison operators
1503 in C++20. Do not declare non-standard same-type overloads for C++20.
1504 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
1505 of comparisons and check using greedy_ops type.
1506 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
1507 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
1508 main function from compile-only test.
1509 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
1511 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
1513 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
1514 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
1515 C++20 concepts are required.
1516 * include/bits/stl_iterator_base_types.h: Likewise.
1517 * include/std/concepts: Likewise.
1518 * include/std/version: Likewise.
1519 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
1522 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
1523 (reverse_iterator::iterator_category): Define for C++20.
1524 (reverse_iterator): Define comparison operators correctly for C++20.
1525 (__normal_iterator): Add constraints to comparison operators for C++20.
1526 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
1527 overload for input iterators.
1528 (move_iterator): Add constraints to comparison operators for C++20.
1529 Define operator<=> for C++20.
1530 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
1531 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
1532 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
1533 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
1535 * include/bits/iterator_concepts.h (__detail::__decay_copy)
1536 (__detail::__member_begin, __detail::__adl_begin): Move here from
1537 <bits/range_access.h>.
1538 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
1539 * bits/range_access.h (__cust_access::__decay_copy)
1540 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
1541 <bits/iterator_concepts.h>.
1542 (ranges::iterator_t): Use __detail::__range_iter_t.
1543 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
1544 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
1545 (front_insert_iterator): Likewise.
1546 (insert_iterator): Implement changes from P0896R4 for C++20.
1547 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
1548 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
1549 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
1550 for inclusion in synopsis_c++20.cc which expects different signatures
1551 for some function templates.
1552 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
1554 * include/std/type_traits (__is_array_convertible): Move definition
1555 to immediately after is_convertible.
1557 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
1559 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
1560 (chrono::months, chrono::sys_days, chrono::local_t)
1561 (chrono::local_time, chrono::local_seconds, chrono::local_days):
1563 (chrono::time_point): Add missing static assert.
1564 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
1565 * testsuite/std/time/clock/file/overview.cc: New test.
1566 * testsuite/std/time/clock/file/members.cc: New test.
1567 * testsuite/std/time/syn_c++20.cc: New test.
1569 2020-03-25 Mike Crowe <mac@mcrowe.com>
1571 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
1573 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
1576 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
1578 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
1579 * include/std/chrono (filesystem::__file_clock): Here.
1580 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
1581 Define public member functions for C++20.
1582 (is_clock, is_clock_v): Define traits for C++20.
1583 * include/std/condition_variable (condition_variable::wait_until): Add
1584 check for valid clock.
1585 * include/std/future (_State_baseV2::wait_until): Likewise.
1586 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
1587 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
1589 * include/std/thread (this_thread::sleep_until): Likewise.
1590 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
1591 slow_clock with new namespace.
1592 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
1594 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1596 * testsuite/30_threads/future/members/clock_neg.cc: New test.
1597 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
1598 Qualify slow_clock with new namespace.
1599 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
1600 clock_neg.cc: New test.
1601 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
1603 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
1604 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1606 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
1607 slow_clock with new namespace.
1608 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
1609 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
1611 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
1612 * testsuite/std/time/traits/is_clock.cc: New test.
1613 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
1616 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
1619 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
1620 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
1621 Improve test coverage.
1624 * include/bits/fs_path.h (path::_S_str_convert): Replace first
1625 parameter with basic_string_view so that strings with different
1626 allocators can be accepted.
1627 (path::generic_string<C,T,A>()): Use basic_string object that uses the
1628 right allocator type.
1629 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
1630 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
1633 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
1636 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
1637 (__is_nt_default_constructible_impl): Remove.
1638 (__is_nothrow_default_constructible_impl): Remove.
1639 (__is_nt_constructible_impl): Add bool template parameter. Adjust
1640 partial specializations.
1641 (__is_nothrow_constructible_impl): Replace class template with alias
1643 (is_nothrow_default_constructible): Derive from alias template
1644 __is_nothrow_constructible_impl instead of
1645 __is_nothrow_default_constructible_impl.
1646 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
1648 * include/std/stop_token (stop_token::_Stop_state_ref): Define
1649 comparison operators explicitly if the compiler won't synthesize them.
1651 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
1652 __cpp_lib_concepts before using iter_reference_t.
1653 * include/bits/stream_iterator.h (istream_iterator): Check
1654 __cpp_lib_concepts before using default_sentinel_t.
1655 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
1658 * include/experimental/executor (executor::executor(Executor)): Call
1659 make_shared directly instead of _M_create. Create _Tgt1 object.
1660 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
1661 Call allocate_shared directly instead of _M_create. Create _Tgt2
1663 (executor::target_type): Add cast needed for new _Tgt interface.
1664 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
1665 (executor::_Tgt): Define the same interface whether RTTI is enabled or
1667 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
1668 std::type_info in the interface.
1669 (executor::_Tgt::_M_func): Add data member.
1670 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
1671 (executor::_Tgt1::_S_func): Define function to access target without
1673 (executor::_M_create): Remove.
1674 (operator==, operator!=): Simplify comparisons for executor.
1675 * include/experimental/socket (is_error_code_enum<socket_errc>):
1676 Define specialization before use.
1677 * testsuite/experimental/net/executor/1.cc: New test.
1679 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
1682 * include/experimental/executor (service_already_exists): Add default
1683 constructor. Declare make_service to be a friend.
1684 * testsuite/experimental/net/execution_context/make_service.cc: New
1687 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
1689 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
1690 a null pointer to functions with nonnull(1) attribute.
1692 2020-03-11 Patrick Palka <ppalka@redhat.com>
1694 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
1695 'address' -> 'std::__addressof'.
1696 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
1697 a non-forward input_range.
1698 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
1699 default constructor protected instead of deleted, like with
1700 input_iterator_wrapper.
1701 (test_range::iterator): Add comment explaining that this type is used
1702 only when the underlying wrapper is input_iterator_wrapper or
1703 output_iterator_wrapper. Remove delegating defaulted constructor so
1704 that the inherited default constructor is used instead.
1706 LWG 3286 ranges::size is not required to be valid after a call to
1707 ranges::begin on an input range
1708 * include/std/ranges (subrange::subrange): Split single-argument
1709 constructor into two, one constrained by _S_store_size and another by
1711 (take_view::begin): Call size() before calling ranges::begin(_M_base).
1712 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
1713 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
1715 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
1717 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
1718 instead of _M_current.
1719 (split_view::_OuterIter::operator++): Likewise.
1721 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
1722 (transform_view::_Iterator::operator*): Add noexcept-specifier.
1723 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
1724 (split_view::_OuterIter::__current): Add noexcept.
1725 (split_view::_InnerIter::__iter_swap): Remove.
1726 (split_view::_InnerIter::__iter_move): Remove.
1727 (split_view::_InnerIter::_M_i_current): New accessors.
1728 (split_view::_InnerIter::__at_end): Use _M_i_current().
1729 (split_view::_InnerIter::operator*): Likewise.
1730 (split_view::_InnerIter::operator++): Likewise.
1731 (iter_move(const _InnerIter&)): Likewise.
1732 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
1733 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
1734 for iter_move and iter_swap on split_view's inner iterator.
1737 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
1738 Change expression in noexcept-specifier to match function body.
1740 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
1741 comment explaining multiple dg-do directives.
1742 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
1743 so test is run as well as compiled.
1745 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
1748 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
1749 handle concatenations that change the type of the first component.
1750 (path::operator+=(basic_string_view<value_type>)): Likewise.
1751 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
1753 2020-03-06 Patrick Palka <ppalka@redhat.com>
1755 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
1756 join_view::_Sentinel<!_Const>.
1757 * testsuite/std/ranges/adaptors/join.cc: Augment test.
1760 * include/bits/range_access.h (__cust_access::_Empty::operator()):
1761 Declare return type to be bool instead of auto.
1762 * testsuite/std/ranges/adaptors/93978.cc: New test.
1764 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
1767 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
1768 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
1769 second argument to __glibcxx_rwlock_init.
1770 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
1773 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
1774 test to not fail due to PR 94063.
1775 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
1776 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
1778 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
1780 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
1783 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
1785 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
1786 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
1787 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1788 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
1789 for return value, and in comparison.
1790 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
1793 * include/std/string_view: Include <bits/ostream_insert.h>.
1794 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
1796 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
1798 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
1800 2020-03-04 Patrick Palka <ppalka@redhat.com>
1803 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
1804 condition for when to use memset, making sure to additionally check that
1805 the output pointer's value type is a non-volatile byte type. Instead of
1806 requiring that the fill type is a byte type, just require that it's an
1808 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1810 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1812 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
1813 blocked by PR 94017.
1814 * testsuite/25_algorithms/fill/94017.cc: New test.
1815 * testsuite/25_algorithms/fill_n/94017.cc: New test.
1817 LWG 3355 The memory algorithms should support move-only input iterators
1819 * include/bits/ranges_uninitialized.h
1820 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
1821 to copy __ifirst, which could be a move-only input iterator. Use
1822 operator- instead of ranges::distance to compute distance from a sized
1824 (__uninitialized_copy_n_fn::operator()): Likewise.
1825 (__uninitialized_move_fn::operator()): Likewise.
1826 (__uninitialized_move_n_fn::operator()): Likewise.
1827 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
1828 attempting to copy __first.
1829 (__uninitialized_destroy_n_fn::operator()): Likewise.
1830 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1832 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
1834 * .../specialized_algorithms/uninitialized_move/constrained.cc:
1837 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
1838 protected instead of private.
1839 (test_sized_range_sized_sent): New.
1841 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
1842 New testsuite iterator.
1843 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
1844 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1846 * include/bits/ranges_uninitialized.h
1847 (uninitialized_copy_fn::operator()): Pass a reference type as the first
1848 argument to is_nothrow_assignable_v.
1849 (uninitialized_copy_fn::operator()): Likewise.
1850 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
1851 with the input iterator stripped of its move_iterator.
1852 (uninitialized_move_n_fn::operator()): Likewise.
1853 (uninitialized_fill_fn::operator()): Pass a reference type as the first
1854 argument to is_nothrow_assignable_v.
1855 (uninitialized_fill_n_fn::operator()): Likewise.
1857 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
1860 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
1861 traits to control when to use memmove and memcmp optimizations.
1862 (__is_nonvolatile_trivially_copyable): New helper trait.
1863 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
1864 use memcmp optimization with volatile data.
1865 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
1866 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
1867 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
1868 (__copy_move_backward_a2): Likewise.
1869 (__equal_aux1): Use __memcmpable.
1870 (__lexicographical_compare_aux): Do not use memcmp optimization with
1872 * testsuite/25_algorithms/copy/94013.cc: New test.
1873 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
1874 * testsuite/25_algorithms/equal/94013.cc: New test.
1875 * testsuite/25_algorithms/fill/94013.cc: New test.
1876 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
1877 * testsuite/25_algorithms/move/94013.cc: New test.
1878 * testsuite/25_algorithms/move_backward/94013.cc: New test.
1880 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
1881 Avoid redundant iterator comparisons (LWG 3410).
1883 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
1886 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
1888 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
1890 * include/std/ranges (__detail::__maybe_empty_t): Rename to
1892 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
1894 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
1897 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
1899 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1901 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1903 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
1904 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1905 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1906 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1907 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1909 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1910 Add libatomic option.
1911 * testsuite/30_threads/jthread/jthread.cc: Likewise.
1913 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
1915 * include/bits/stl_algo.h
1916 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
1917 * include/bits/stl_algobase.h: ...here.
1918 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
1920 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1922 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
1924 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1926 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
1927 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
1928 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
1929 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1930 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
1931 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1932 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1936 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1938 2020-02-28 Patrick Palka <ppalka@redhat.com>
1941 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1942 Fix condition for when to use memcmp, making it consistent with the
1943 corresponding condition used in std::lexicographical_compare.
1944 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
1946 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
1947 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
1948 existing signatures for C++2a.
1950 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1952 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
1953 test instead of just compiling it.
1955 2020-02-28 Patrick Palka <ppalka@redhat.com>
1957 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
1958 whenever the underlying range models common_range.
1960 * include/std/ranges (__detail::_CachedPosition): New struct.
1961 (views::filter_view::_S_needs_cached_begin): New member variable.
1962 (views::filter_view::_M_cached_begin): New member variable.
1963 (views::filter_view::begin): Use _M_cached_begin to cache its
1965 (views::drop_view::_S_needs_cached_begin): New static member variable.
1966 (views::drop_view::_M_cached_begin): New member variable.
1967 (views::drop_view::begin): Use _M_cached_begin to cache its result
1968 when _S_needs_cached_begin.
1969 (views::drop_while_view::_M_cached_begin): New member variable.
1970 (views::drop_while_view::begin): Use _M_cached_begin to cache its
1972 (views::reverse_view::_S_needs_cached_begin): New static member
1974 (views::reverse_view::_M_cached_begin): New member variable.
1975 (views::reverse_view::begin): Use _M_cached_begin to cache its result
1976 when _S_needs_cached_begin.
1977 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
1978 drop_view::begin caches its result.
1979 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
1980 that drop_while_view::begin caches its result.
1981 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
1982 filter_view::begin caches its result.
1983 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1984 reverse_view::begin caches its result.
1986 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1988 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1989 filesystems that silently truncate timestamps.
1990 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1993 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1994 -Wstringop-overflow warnings.
1996 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1998 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1999 -fdiagnostics-urls=never to options.
2001 2020-02-27 Patrick Palka <ppalka@redhat.com>
2003 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
2005 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
2006 (take_view::_Sentinel<_Const>): Likewise.
2007 (take_while_view::_Sentinel<_Const>): Likewise.
2008 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
2009 * testsuite/std/ranges/adaptors/split.cc: Augment test.
2010 * testsuite/std/ranges/adaptors/take.cc: Augment test.
2011 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
2012 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
2014 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
2015 base() of a vector<>::iterator is a pointer.
2016 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
2017 * testsuite/25_algorithms/move/constrained.cc: Likewise.
2018 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
2019 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
2021 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
2022 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
2023 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
2024 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
2025 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
2027 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
2029 * include/debug/array (operator<=>): Define for C++20.
2030 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
2031 Adjust dg-error line numbers.
2032 * testsuite/23_containers/array/tuple_interface/
2033 tuple_element_debug_neg.cc: Likewise.
2035 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
2036 defining _GLIBCXX_ASSERTIONS.
2037 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
2038 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
2039 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
2040 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
2041 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
2042 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
2043 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
2044 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
2045 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
2046 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
2047 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
2048 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
2050 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
2051 C++98 where the member function of the base class returns void.
2053 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
2054 equality comparisons that support value-initialized iterators.
2056 * include/bits/boost_concept_check.h (__function_requires): Add
2057 _GLIBCXX14_CONSTEXPR.
2058 * testsuite/25_algorithms/min/concept_checks.cc: New test.
2060 2020-02-26 Patrick Palka <ppalka@redhat.com>
2063 * include/std/ranges (split_view::_InnerIter::operator==): Compare
2064 the operands' _M_i rather than their _M_i.current().
2065 * testsuite/std/ranges/adaptors/split.cc: Augment test.
2067 P1645R1 constexpr for <numeric> algorithms
2068 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
2069 partial_sum, adjacent_difference): Make conditionally constexpr for
2071 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
2073 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
2074 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
2075 constexpr for C++20.
2076 * include/std/version (__cpp_lib_constexpr_numeric): Define.
2077 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
2078 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
2079 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
2080 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
2081 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
2082 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
2083 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
2084 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
2085 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
2086 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
2087 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
2089 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
2091 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
2092 variables in smaller scope and avoid calling ranges::distance when we
2093 know they are pointers. Remove statically-unreachable use of
2094 __builtin_unreachable().
2095 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
2098 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
2100 (__detail::__maybe_const_t): Likewise.
2101 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
2102 (transform_view, take_view, take_while_view, elements_view): Use
2104 (join_view, split_view): Use both.
2106 2020-02-25 Patrick Palka <ppalka@redhat.com>
2108 LWG 3397 basic_istream_view::iterator should not provide
2110 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
2112 (basic_istream_view:_Iterator::iterator_concept): ... this.
2113 * testsuite/std/ranges/istream_view.cc: Augment test.
2115 LWG 3325 Constrain return type of transformation function for
2117 * include/std/ranges (transform_view): Constrain the return type of the
2118 transformation function as per LWG 3325.
2119 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
2121 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
2122 * include/std/ranges (join_view::_Iterator::operator--): Require that
2123 range_reference_t<_Base> models common_range.
2124 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
2126 LWG 3301 transform_view::_Iterator has incorrect iterator_category
2127 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
2128 determination of iterator_category as per LWG 3301.
2129 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
2131 LWG 3292 iota_view is under-constrained
2132 * include/std/ranges (iota_view): Require that _Winc models semiregular
2134 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
2136 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
2138 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
2139 during constant evaluation. Call __builtin_memmove directly instead of
2141 (__copy_or_move_backward): Likewise.
2142 * include/bits/stl_algobase.h (__memmove): Remove.
2143 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
2144 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
2145 Use __builtin_memmove directly instead of __memmove.
2146 (__copy_move_a2): Do not use memmove during constant evaluation.
2147 (__copy_move_backward_a2): Use _IsMove constant to select correct
2148 __copy_move_backward specialization.
2149 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
2150 begin turned into moves during constant evaluation.
2152 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
2156 * include/bits/stl_algobase.h (__memmove): Cast away const before
2157 doing move assignment.
2158 * testsuite/25_algorithms/move/93872.cc: New test.
2159 * testsuite/25_algorithms/move_backward/93872.cc: New test.
2161 2020-02-24 Patrick Palka <ppalka@redhat.com>
2164 * include/bits/ranges_algobase.h (__copy_or_move,
2165 __copy_or_move_backward): Don't inspect the iter_value_t of the output
2166 iterator, instead inspect its iterator_traits directly.
2167 * include/bits/stl_iterator.h (back_insert_iterator::container):
2168 Conditionally initialize.
2169 (back_insert_iterator::difference_type): Conditionally define.
2170 (back_insert_iterator::back_insert_iterator): Conditionally define this
2171 default constructor.
2172 (front_insert_iterator::container): Conditionally initialize.
2173 (front_insert_iterator::difference_type): Conditionally define.
2174 (front_insert_iterator::front_insert_iterator): Conditionally define
2175 this default constructor.
2176 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
2177 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
2179 P0769R2 Add shift to <algorithm>
2180 * include/bits/ranges_algo.h (shift_left, shift_right): New.
2181 * testsuite/25_algorithms/shift_left/1.cc: New test.
2182 * testsuite/25_algorithms/shift_right/1.cc: New test.
2184 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
2186 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
2187 Make noexcept-specifier conditional.
2188 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
2191 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
2193 (operator==(istream_iterator, default_sentinel_t)): Add operator.
2194 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
2195 * include/bits/streambuf_iterator.h
2196 (istreambuf_iterator(default_sentinel_t)): Add constructor.
2197 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
2198 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
2200 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
2201 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
2203 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
2205 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
2206 (ranges::enable_view): Simplify (LWG 3326).
2207 * include/bits/range_access.h (ranges::enable_view): Declare.
2208 * include/bits/regex.h (__enable_view_impl): Remove partial
2210 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
2211 * include/bits/stl_set.h (__enable_view_impl): Likewise.
2212 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
2213 * include/debug/multiset.h (__enable_view_impl): Likewise.
2214 * include/debug/set.h (__enable_view_impl): Likewise.
2215 * include/debug/unordered_set (__enable_view_impl): Likewise.
2216 * include/experimental/string_view (ranges::enable_view): Define
2217 partial specialization.
2218 * include/std/span (ranges::enable_view): Likewise.
2219 * include/std/string_view (ranges::enable_view): Likewise.
2220 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
2222 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
2224 * include/std/optional (operator<=>(optional<T>, optional<U>))
2225 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
2227 * include/std/tuple (__tuple_cmp): New helper function for <=>.
2228 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
2229 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
2230 (operator<=>(monostate, monostate)): Define for C++20.
2231 * testsuite/20_util/optional/relops/three_way.cc: New test.
2232 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
2233 * testsuite/20_util/variant/89851.cc: Move to ...
2234 * testsuite/20_util/variant/relops/89851.cc: ... here.
2235 * testsuite/20_util/variant/90008.cc: Move to ...
2236 * testsuite/20_util/variant/relops/90008.cc: ... here.
2237 * testsuite/20_util/variant/relops/three_way.cc: New test.
2239 2020-02-20 Patrick Palka <ppalka@redhat.com>
2241 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
2243 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
2244 __maybe_refwrap to capture lvalue references by reference, and then use
2245 unwrap_reference_t to forward the by-reference captures as references.
2246 * testsuite/std/ranges/adaptors/split.cc: Augment test.
2247 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
2249 * include/std/ranges (iota_view): Forward declare _Sentinel.
2250 (iota_view::_Iterator): Befriend _Sentinel.
2251 (iota_view::_Sentinel::_M_equal): New member function.
2252 (iota_view::_Sentinel::operator==): Use it.
2253 (views::_Iota::operator()): Forward __f using the correct type.
2254 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
2255 with integers of different signedness, to appease iota_view's deduction
2257 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
2259 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
2261 * include/bits/range_access.h (ranges::begin): Reject array of
2263 (ranges::end, ranges::size): Require arrays to be bounded.
2264 (ranges::data): Require lvalue or borrowed_range.
2265 (ranges::iterator_t): Remove constraint.
2266 * testsuite/std/ranges/access/begin.cc: Do not check array of
2268 * testsuite/std/ranges/access/begin_neg.cc: New test.
2269 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
2270 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
2271 * testsuite/std/ranges/access/ssize.cc: Do not check array of
2274 * include/std/system_error (error_category::operator<=>)
2275 (operator<=>(const error_code&, const error_code&))
2276 (operator<=>(const error_condition&, const error_condition&)): Define
2278 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
2279 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
2281 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
2283 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
2284 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
2286 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
2287 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
2289 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
2290 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
2291 Remove incorrect comment.
2292 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
2295 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
2297 * include/std/thread (thread::id::operator<=>): Define for C++20.
2298 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
2299 functions in namespace std.
2300 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
2302 2020-02-19 Patrick Palka <ppalka@redhat.com>
2304 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
2305 null terminator of the underlying string as part of the test_range.
2306 (main): Call test03.
2308 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
2310 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
2311 requirement (LWG 3385).
2312 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
2313 expected declaration.
2315 * include/std/ranges (take_while_view, drop_view, drop_while_view)
2316 (elements_view:_Iterator): Initialize data members (LWG 3364).
2318 * libsupc++/compare (three_way_comparable): Remove always-false check
2319 that should have been removed with weak_equality (P1959R0).
2320 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
2322 * include/std/concepts (__detail::__partially_ordered_with): Move here
2324 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
2325 to simplify definition (LWG 3331).
2326 * libsupc++/compare (__detail::__partially_ordered_with): Move to
2329 * include/std/concepts (totally_ordered_with): Remove redundant
2330 requirement (LWG 3329).
2332 * include/std/ranges (__detail::__convertible_to_non_slicing): New
2334 (__detail::__pair_like_convertible_to): Remove.
2335 (__detail::__pair_like_convertible_from): Add requirements for
2336 non-slicing conversions.
2337 (subrange): Constrain constructors with __convertible_to_non_slicing.
2338 Remove constructors from pair-like types. Add new deduction guide.
2339 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
2341 * include/bits/iterator_concepts.h (iter_move): Add declaration to
2342 prevent unqualified lookup finding a suitable declaration (LWG 3247).
2344 * include/std/memory_resource (polymorphic_allocator::allocate)
2345 (polymorphic_allocator::allocate_object): Change type of exception to
2346 bad_array_new_length (LWG 3237).
2347 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
2349 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
2350 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
2351 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
2352 * testsuite/20_util/unwrap_reference/3.cc: New test.
2354 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
2355 type during overload resolution, use static assert instead (LWG 3200).
2356 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
2358 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
2360 * include/std/span (span(T (&)[N])): Use non-deduced context to
2361 prevent first parameter from interfering with class template argument
2362 deduction (LWG 3369).
2363 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
2364 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
2367 * include/std/span (span::const_iterator, span::const_reverse_iterator)
2368 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
2370 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
2372 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
2374 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
2375 constrained.cc: Likewise.
2376 * testsuite/20_util/specialized_algorithms/
2377 uninitialized_default_construct/constrained.cc: Likewise.
2378 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
2379 constrained.cc: Likewise.
2380 * testsuite/20_util/specialized_algorithms/uninitialized_move/
2381 constrained.cc: Likewise.
2382 * testsuite/20_util/specialized_algorithms/
2383 uninitialized_value_construct/constrained.cc: Likewise.
2385 * include/bits/range_access.h (range_size_t): Define alias template.
2386 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
2387 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
2389 * include/std/ranges (filter_view, transform_view, take_view)
2390 (join_view, split_view, reverse_view): Remove commented-out converting
2391 constructors (LWG 3280).
2393 * include/std/memory (uninitialized_construct_using_allocator): Use
2394 std::construct_at (LWG 3321).
2396 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
2397 (polymorphic_allocator::allocate_object)
2398 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
2400 LWG 3379. "safe" in several library names is misleading
2401 * include/bits/range_access.h (enable_safe_range): Rename to
2402 enable_borrowed_range.
2403 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
2404 (safe_range): Rename to borrowed_range.
2405 * include/bits/ranges_algo.h: Adjust to use new names.
2406 * include/bits/ranges_algobase.h: Likewise.
2407 * include/bits/ranges_uninitialized.h: Likewise.
2408 * include/std/ranges: Likewise.
2409 (safe_iterator_t): Rename to borrowed_iterator_t.
2410 (safe_subrange_t): Rename to borrowed_subrange_t.
2411 * include/std/span: Adjust to use new names.
2412 * include/std/string_view: Likewise.
2413 * include/experimental/string_view: Likewise.
2414 * testsuite/std/ranges/access/begin.cc: Likewise.
2415 * testsuite/std/ranges/access/cbegin.cc: Likewise.
2416 * testsuite/std/ranges/access/cdata.cc: Likewise.
2417 * testsuite/std/ranges/access/cend.cc: Likewise.
2418 * testsuite/std/ranges/access/crbegin.cc: Likewise.
2419 * testsuite/std/ranges/access/crend.cc: Likewise.
2420 * testsuite/std/ranges/access/data.cc: Likewise.
2421 * testsuite/std/ranges/access/end.cc: Likewise.
2422 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2423 * testsuite/std/ranges/access/rend.cc: Likewise.
2424 * testsuite/std/ranges/safe_range.cc: Likewise.
2425 * testsuite/std/ranges/safe_range_types.cc: Likewise.
2426 * testsuite/util/testsuite_iterators.h: Likewise.
2428 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
2429 (tuple_element<1, const subrange<I, S, K>>): Add partial
2430 specializations (LWG 3398).
2431 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
2433 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2434 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
2435 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
2437 2020-02-18 Patrick Palka <ppalka@redhat.com>
2439 P1983R0 Wording for GB301, US296, US292, US291, and US283
2440 * include/std/ranges (filter_view::pred): New member function.
2441 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
2442 P1983R0 fixes the highlighted issue in the same way.
2443 (join_view::_Iterator<_Const>): Add friend
2444 join_view::_Iterator<!_Const>.
2445 (join_view::_M_inner): Remove mutable specifier, effectively reverting
2446 the proposed wording changes of P3278.
2447 (join_view::begin): Refine the condition for when to return a const
2449 (split_view::_OuterIter::_OuterIter): Adjust constraints.
2450 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
2453 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
2456 * include/std/ranges (_RangeAdaptor): Add deduction guide.
2457 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
2459 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
2460 (transform_view::_Iterator): Add alias _Base_iter and use in place of
2462 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
2463 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
2464 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
2465 (split_view::_InnerIter::_S_iter_cat()): Likewise.
2467 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
2468 assumption that long is wider than int.
2469 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
2470 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
2471 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
2472 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
2474 P1976R2 Fixed-size span construction from dynamic range
2475 * include/std/span (__cpp_lib_span): Update value.
2476 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
2478 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
2480 (span::first<Count>(), span::last<Count>()): Use explicit type in
2482 (as_bytes, as_writable_bytes): Likewise.
2483 * include/std/version (__cpp_lib_span): Update value.
2484 * testsuite/23_containers/span/1.cc: Check new value.
2485 * testsuite/23_containers/span/2.cc: Check new value.
2486 * testsuite/23_containers/span/explicit.cc: New test.
2488 * include/std/span (span::__is_compatible_array): Simplify alias
2489 template by using requires-clause.
2490 (span::__is_compatible_ref): New alias template for constraining
2492 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
2493 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
2494 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
2495 redundant parentheses.
2496 (span(R&&)): Add missing constraints.
2498 * include/std/span (span): Reorder members and rename template
2499 parameters to match declarations in the C++2a working paper.
2501 P2116R0 Remove tuple-like protocol support from fixed-extent span
2502 * include/std/span (get, tuple_size, tuple_element): Remove.
2503 * testsuite/23_containers/span/everything.cc: Remove checks for
2505 * testsuite/23_containers/span/get_neg.cc: Remove.
2506 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
2507 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
2508 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
2510 2020-02-17 Patrick Palka <ppalka@redhat.com>
2512 P2106R0 Alternative wording for GB315 and GB316
2513 * include/bits/ranges_algo.h (in_fun_result): New.
2514 (for_each_result, for_each_n_result): Change into an alias of
2516 (in_in_result): New.
2517 (mismatch_result): Change into an alias of in_in_result.
2518 (copy_if_result): Change into an alias of in_out_result.
2519 (swap_ranges_result): Change into an alias of in_in_result.
2520 (unary_transform_result): Change into an alias of in_out_result.
2521 (in_in_out_result): New.
2522 (binary_transform_result): Change into an alias of in_in_out_result.
2523 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
2524 remove_copy_result, unique_copy_result, reverse_copy_result,
2525 rotate_copy_result, partial_sort_copy_result): Change into an alias of
2527 (in_out_out_result): New.
2528 (partition_copy_result, merge_result): Change into an alias of
2530 (set_union_result, set_intersection_result): Change into an alias of
2532 (set_difference_result): Change into an alias of in_out_result.
2533 (set_symmetric_difference): Change into an alias of in_in_out_result.
2534 (min_max_result): New.
2535 (minmax_result, minmax_element_result): Change into an alias of
2537 (in_found_result): New.
2538 (next_permutation_result, prev_permutation_result): Change into an alias
2540 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
2541 Adjust following changes to next_permutation_result and
2542 prev_permutation_result.
2543 * include/bits/ranges_algobase.h (in_out_result): New.
2544 (copy_result, move_result, move_backward_result, copy_backward_result,
2545 copy_n_result): Change into an alias of in_out_result.
2546 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
2547 uninitialized_copy_n_result, uninitialized_move_result,
2548 uninitialized_move_n_result): Likewise.
2549 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
2550 structured bindings.
2551 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
2553 P1243R4 Rangify new algorithms
2554 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
2555 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
2556 * testsuite/25_algorithms/clamp/constrained.cc: New test.
2557 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
2558 * testsuite/25_algorithms/sample/constrained.cc: New test.
2560 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
2562 P1964R2 Wording for boolean-testable
2563 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2564 (__adjacent_find_fn): Cast result of predicate to bool.
2565 * include/std/concepts (__boolean): Remove.
2566 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
2567 new helper concepts.
2568 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
2569 (predicate): Use __boolean_testable instead of boolean.
2570 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
2573 P1970R2 Consistency for size() functions: Add ranges::ssize
2574 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
2575 * testsuite/std/ranges/access/ssize.cc: New test.
2577 P1956R1 On the names of low-level bit manipulation functions
2578 * include/bits/hashtable_policy.h: Update comment.
2579 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
2580 (ispow2, ceil2, floor2, log2p1): Likewise.
2581 (__cpp_lib_int_pow2): Add feature test macro.
2582 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
2583 * include/std/memory (assume_aligned): Adjust use of ispow2.
2584 * include/std/version (__cpp_lib_int_pow2): Add.
2585 * libsupc++/new_opa.cc: Adjust use of __ispow2.
2586 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
2587 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
2588 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
2589 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
2590 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
2591 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
2592 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
2593 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
2594 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
2595 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
2596 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
2597 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
2599 * include/std/charconv: Add comment.
2601 PR libstdc++/92546 (partial)
2602 * include/bits/random.h (uniform_random_bit_generator): Move definition
2603 to <bits/uniform_int_dist.h>.
2604 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
2606 * include/bits/ranges_algobase.h: Do not include <cmath>.
2607 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
2609 * include/std/ranges: Do not include <limits>.
2610 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2612 PR libstdc++/92546 (partial)
2613 * include/Makefile.am: Add new header.
2614 * include/Makefile.in: Regenerate.
2615 * include/bits/int_limits.h: New header.
2616 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
2617 numeric_limits with __detail::__int_limits.
2618 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2619 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
2621 * include/std/charconv (__to_chars_8, __from_chars_binary)
2622 (__from_chars_alpha_to_num, from_chars): Likewise.
2623 * include/std/memory_resource (polymorphic_allocator::allocate)
2624 (polymorphic_allocator::allocate_object): Likewise.
2625 * include/std/string_view (basic_string_view::_S_compare): Likewise.
2626 * include/std/utility (in_range): Likewise.
2627 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
2628 extra error about incomplete type __int_limits<bool>.
2629 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
2630 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
2631 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
2632 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
2633 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
2634 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
2635 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
2636 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
2637 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
2638 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
2639 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
2640 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
2642 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
2643 value for partial_ordering::unordered.
2645 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
2646 const-qualified expression variations.
2647 * include/std/concepts (copyable): Likewise.
2649 * include/std/type_traits (__is_standard_integer): New helper trait.
2650 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
2651 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
2652 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
2653 * testsuite/20_util/integer_comparisons/1.cc: New test.
2654 * testsuite/20_util/integer_comparisons/2.cc: New test.
2655 * testsuite/20_util/integer_comparisons/equal.cc: New test.
2656 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
2657 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
2658 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
2659 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
2660 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
2661 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
2662 * testsuite/20_util/integer_comparisons/less.cc: New test.
2663 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
2664 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
2665 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
2666 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
2667 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
2669 2020-02-16 Patrick Palka <ppalka@redhat.com>
2671 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
2672 Move code after an early exit constexpr if to under an else branch.
2673 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
2675 2020-02-15 Patrick Palka <ppalka@redhat.com>
2677 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
2678 * include/bits/ranges_algobase.h: Likewise.
2679 * include/bits/ranges_uninitialized.h: Likewise.
2681 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
2682 binary_search, copy_if, count, count_if, equal_range, find, find_end,
2683 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
2684 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
2685 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
2686 lower_bound, make_heap, max, max_element, merge, min, min_element,
2687 minmax, minmax_element, mismatch, next_permutation, none_of,
2688 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
2689 partition_point, pop_heap, prev_permutation, push_heap, remove,
2690 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
2691 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
2692 search, search_n, set_difference, set_intersection,
2693 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
2694 stable_partition, stable_sort, swap_ranges, transform, unique,
2695 unique_copy, upper_bound): Convert into function objects.
2696 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
2697 fill, move_backward, copy_backward): Likewise.
2698 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
2699 uninitialized_default_construct_n, uninitialized_value_construct,
2700 uninitialized_value_construct_n, uninitialized_copy,
2701 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
2702 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
2703 destroy, destroy_n): Likewise.
2705 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
2706 (ranges::find_end): ... here.
2707 (ranges::__lexicographical_compare): Fold into ...
2708 (ranges::lexicographical_compare): ... here.
2709 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
2710 (ranges::equal): ... here.
2712 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2714 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
2715 * include/std/deque: Likewise.
2716 * include/std/forward_list: Likewise.
2717 * include/std/list: Likewise.
2718 * include/std/string: Likewise.
2719 * include/std/vector: Likewise.
2720 * include/std/version: Likewise.
2721 * testsuite/23_containers/deque/erasure.cc: Test for new value.
2722 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
2723 * testsuite/23_containers/list/erasure.cc: Likewise.
2724 * testsuite/23_containers/map/erasure.cc: Likewise.
2725 * testsuite/23_containers/set/erasure.cc: Likewise.
2726 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2727 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2728 * testsuite/23_containers/vector/erasure.cc: Likewise.
2730 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2732 * include/bits/random.h (uniform_random_bit_generator): Require min()
2733 and max() to be constant expressions and min() to be less than max().
2734 * testsuite/26_numerics/random/concept.cc: Check additional cases.
2735 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2737 2020-02-13 Patrick Palka <ppalka@redhat.com>
2739 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
2740 * include/Makefile.in: Regenerate.
2741 * include/bits/ranges_uninitialized.h: New header.
2742 * include/std/memory: Include it.
2743 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
2745 * .../uninitialized_copy/constrained.cc: New test.
2746 * .../uninitialized_default_construct/constrained.cc: New test.
2747 * .../uninitialized_fill/constrained.cc: New test.
2748 * .../uninitialized_move/constrained.cc: New test.
2749 * .../uninitialized_value_construct/constrained.cc: New test.
2751 * include/Makefile.am: Add bits/ranges_algobase.h
2752 * include/Makefile.in: Regenerate.
2753 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
2755 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
2756 __detail::__is_move_iterator, copy_result, move_result,
2757 __equal, equal, copy_result, move_result, move_backward_result,
2758 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
2759 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
2760 fill): Split out into ...
2761 * bits/range_algobase.h: ... this new header.
2763 2020-02-12 Patrick Palka <ppalka@redhat.com>
2765 LWG 3389 and LWG 3390
2766 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
2767 constructing the move_iterator with __i.
2768 (counted_iterator::counted_iterator): Use std::move when initializing
2770 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
2771 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
2773 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
2778 * configure: Regenerated.
2780 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
2782 * include/bits/hashtable.h
2783 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
2784 missing std namespace qualification to forward call.
2786 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
2788 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
2790 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
2792 * include/std/ranges: Fix non-ASCII characters in comment.
2794 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
2795 equality comparison to be valid and return bool.
2796 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
2797 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
2798 type with ambiguous conversion to fundamental types.
2799 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
2801 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2803 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
2805 (readable_traits): Rename to indirectly_readable_traits.
2806 (readable): Rename to indirectly_readable.
2807 (writable): Rename to indirectly_writable.
2808 (__detail::__iter_exchange_move): Do not use remove_reference_t.
2809 (indirectly_swappable): Adjust requires expression parameter types.
2811 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
2812 (ranges::replace_if, ranges::generate_n, ranges::generate)
2813 (ranges::remove): Use new name for writable.
2814 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
2815 Use new name for readable.
2816 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
2817 new name for readable_traits.
2818 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
2819 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
2820 new definition of indirectly_readable.
2822 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
2823 to take parameters of common_iterator, instead of the common_iterator
2824 type itself. Fix argument for __common_iter_has_arrow constraint.
2825 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
2827 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2829 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
2831 (basic_istream_view::_Iterator::operator++()): Add missing return.
2833 2020-02-07 Patrick Palka <ppalka@redhat.com>
2835 * include/bits/ranges_algo.h: Remove extraneous &&.
2837 * include/std/ranges (ranges::__detail::__stream_extractable,
2838 ranges::basic_istream_view, ranges::istream_view): Define.
2839 * testsuite/std/ranges/istream_view: New test.
2841 Implement C++20 range adaptors
2842 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
2843 (subrange::_S_store_size): Mark as const instead of constexpr to
2844 avoid what seems to be a bug in GCC.
2845 (__detail::__box): Give it defaulted copy and move constructors.
2846 (ranges::views::_Single::operator()): Mark constexpr.
2847 (ranges::views::_Iota::operator()): Mark constexpr.
2848 (__detail::Empty): Define.
2849 (ranges::views::__closure::_RangeAdaptor,
2850 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
2851 ranges::views::all, ranges::__detail::find_if,
2852 ranges::__detail::find_if_not, ranges::__detail::mismatch,
2853 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
2854 ranges::views::transform, take_view, ranges::views::take,
2855 take_while_view, ranges::views::take_while, drop_view,
2856 ranges::views::drop, join_view, ranges::views::join,
2857 __detail::require_constant, __detail::tiny_range, split_view,
2858 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
2859 common_view, ranges::views::common, reverse_view,
2860 ranges::views::reverse,
2861 ranges::views::__detail::__is_reversible_subrange,
2862 ranges::views::__detail::__is_reverse_view, reverse_view,
2863 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
2864 ranges::views::elements, ranges::views::keys, ranges::views::values):
2866 (views): Alias for ranges::views.
2867 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
2868 tuple_element<1, ranges::subrange>): New partial specializations.
2869 * testsuite/std/ranges/adaptors/all.cc: New test.
2870 * testsuite/std/ranges/adaptors/common.cc: Likewise.
2871 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2872 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2873 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2874 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2875 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2876 * testsuite/std/ranges/adaptors/join.cc: Likewise.
2877 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2878 * testsuite/std/ranges/adaptors/split.cc: Likewise.
2879 * testsuite/std/ranges/adaptors/take.cc: Likewise.
2880 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2881 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2883 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2885 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
2886 type of enumerations and comparison category types.
2887 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
2888 (__cmp_cat::_Ncmp::unordered): Change value to 2.
2889 (partial_ordering::_M_value, weak_ordering::_M_value)
2890 (strong_ordering::_M_value): Change type to __cmp_cat::type.
2891 (partial_ordering::_M_is_ordered): Remove data member.
2892 (partial_ordering): Use second bit of _M_value for unordered. Adjust
2893 comparison operators.
2894 (weak_ordering::operator partial_ordering): Simplify to remove
2896 (operator<=>(unspecified, weak_ordering)): Likewise.
2897 (strong_ordering::operator partial_ordering): Likewise.
2898 (strong_ordering::operator weak_ordering): Likewise.
2899 (operator<=>(unspecified, strong_ordering)): Likewise.
2900 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
2901 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
2902 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
2904 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
2905 __cpp_lib_three_way_comparison macro and use deduced return type for
2907 * testsuite/std/ranges/iota/iterator.cc: New test.
2909 2020-02-07 Patrick Palka <ppalka@redhat.com>
2910 Jonathan Wakely <jwakely@redhat.com>
2912 Implement C++20 constrained algorithms
2913 * include/Makefile.am: Add new header.
2914 * include/Makefile.in: Regenerate.
2915 * include/std/algorithm: Include <bits/ranges_algo.h>.
2916 * include/bits/ranges_algo.h: New file.
2917 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
2918 * testsuite/25_algorithms/all_of/constrained.cc: New test.
2919 * testsuite/25_algorithms/any_of/constrained.cc: New test.
2920 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
2921 * testsuite/25_algorithms/copy/constrained.cc: New test.
2922 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
2923 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
2924 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
2925 * testsuite/25_algorithms/count/constrained.cc: New test.
2926 * testsuite/25_algorithms/count_if/constrained.cc: New test.
2927 * testsuite/25_algorithms/equal/constrained.cc: New test.
2928 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
2929 * testsuite/25_algorithms/fill/constrained.cc: New test.
2930 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
2931 * testsuite/25_algorithms/find/constrained.cc: New test.
2932 * testsuite/25_algorithms/find_end/constrained.cc: New test.
2933 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
2934 * testsuite/25_algorithms/find_if/constrained.cc: New test.
2935 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
2936 * testsuite/25_algorithms/for_each/constrained.cc: New test.
2937 * testsuite/25_algorithms/generate/constrained.cc: New test.
2938 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
2939 * testsuite/25_algorithms/heap/constrained.cc: New test.
2940 * testsuite/25_algorithms/includes/constrained.cc: New test.
2941 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
2942 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
2943 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
2944 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
2945 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
2946 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
2948 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
2949 * testsuite/25_algorithms/max/constrained.cc: New test.
2950 * testsuite/25_algorithms/max_element/constrained.cc: New test.
2951 * testsuite/25_algorithms/merge/constrained.cc: New test.
2952 * testsuite/25_algorithms/min/constrained.cc: New test.
2953 * testsuite/25_algorithms/min_element/constrained.cc: New test.
2954 * testsuite/25_algorithms/minmax/constrained.cc: New test.
2955 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
2956 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
2957 * testsuite/25_algorithms/move/constrained.cc: New test.
2958 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
2959 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
2960 * testsuite/25_algorithms/none_of/constrained.cc: New test.
2961 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
2962 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
2963 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
2964 * testsuite/25_algorithms/partition/constrained.cc: New test.
2965 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
2966 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
2967 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
2968 * testsuite/25_algorithms/remove/constrained.cc: New test.
2969 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
2970 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
2971 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
2972 * testsuite/25_algorithms/replace/constrained.cc: New test.
2973 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
2974 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
2975 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
2976 * testsuite/25_algorithms/reverse/constrained.cc: New test.
2977 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
2978 * testsuite/25_algorithms/rotate/constrained.cc: New test.
2979 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
2980 * testsuite/25_algorithms/search/constrained.cc: New test.
2981 * testsuite/25_algorithms/search_n/constrained.cc: New test.
2982 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
2983 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2984 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2986 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2987 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2988 * testsuite/25_algorithms/sort/constrained.cc: New test.
2989 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2990 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2991 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2992 * testsuite/25_algorithms/transform/constrained.cc: New test.
2993 * testsuite/25_algorithms/unique/constrained.cc: New test.
2994 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2995 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2997 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2999 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
3000 number in comment. Fix indentation.
3002 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
3003 redundant _GLIBCXX20_CONSTEXPR.
3005 * include/std/ranges (viewable_range): Replace decay_t with
3006 remove_cvref_t (LWG 3375).
3008 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
3010 * include/bits/iterator_concepts.h (iter_reference_t)
3011 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
3012 Remove workarounds for PR c++/67704.
3013 * testsuite/24_iterators/aliases.cc: New test.
3015 2020-02-05 Patrick Palka <ppalka@redhat.com>
3017 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
3018 when initializing _M_current.
3019 (move_iterator::base): Split into two overloads differing in
3020 ref-qualifiers as in P1207R4 for C++20.
3022 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
3024 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
3028 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
3029 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
3030 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
3032 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
3034 * configure: Regenerate.
3036 2020-01-31 Patrick Palka <ppalka@redhat.com>
3038 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
3039 test_range::end() returns the same type as test_range::begin().
3040 * testsuite/24_iterators/range_operations/next.cc: Likewise.
3041 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
3042 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
3043 Always return a sentinel<I>.
3045 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
3048 * include/std/stop_token (stop_token::stop_possible()): Call new
3049 _M_stop_possible() function.
3050 (stop_token::stop_requested()): Do not use stop_possible().
3051 (stop_token::binary_semaphore): New class, as temporary stand-in for
3052 std::binary_semaphore.
3053 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
3054 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
3055 New data members for symchronization with stop_callback destruction.
3056 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
3057 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
3059 (stop_token::_Stop_cb::_M_run): New member function.
3060 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
3062 (stop_token::_Stop_state::_M_owners): New data member to track
3063 reference count for ownership.
3064 (stop_token::_Stop_state::_M_value): New data member combining a
3065 spinlock, the stop requested flag, and the reference count for
3066 associated stop_source objects.
3067 (stop_token::_Stop_state::_M_requester): New data member for
3068 synchronization with stop_callback destruction.
3069 (stop_token::_Stop_state::_M_stop_possible()): New member function.
3070 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
3072 (stop_token::_Stop_state::_M_add_owner)
3073 (stop_token::_Stop_state::_M_release_ownership)
3074 (stop_token::_Stop_state::_M_add_ssrc)
3075 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
3076 updating reference counts.
3077 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
3078 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
3079 (stop_token::_Stop_state::_M_try_lock)
3080 (stop_token::_Stop_state::_M_try_lock_and_stop)
3081 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
3083 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
3084 read and update state. Release lock while running callbacks. Use new
3085 data members to synchronize with callback destruction.
3086 (stop_token::_Stop_state::_M_remove_callback): Likewise.
3087 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
3088 to read and update state.
3089 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
3090 replacing shared_ptr.
3091 (stop_source::stop_source(const stop_source&)): Update reference count.
3092 (stop_source::operator=(const stop_source&)): Likewise.
3093 (stop_source::~stop_source()): Likewise.
3094 (stop_source::stop_source(stop_source&&)): Define as defaulted.
3095 (stop_source::operator=(stop_source&&)): Establish postcondition on
3097 (stop_callback): Enforce preconditions on template parameter. Replace
3098 base class with data member of new _Cb_impl type.
3099 (stop_callback::stop_callback(const stop_token&, Cb&&))
3100 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
3101 (stop_callback::_Cb_impl): New type wrapping _Callback member and
3102 defining the _S_execute member function.
3103 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
3105 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
3106 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
3107 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
3109 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
3111 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
3112 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
3113 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
3116 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
3117 three_way_comparable_with.
3118 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
3119 (compare_three_way::operator()): Remove redundant constraint from
3121 (__detail::_Synth3way::operator()): Use three_way_comparable_with
3122 instead of workaround.
3123 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
3124 output due to simplified constraints on compare_three_way::operator().
3127 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
3128 * testsuite/18_support/comparisons/object/93479.cc: New test.
3130 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
3131 returns the same type as test_range::begin(). Add comments.
3132 * testsuite/std/ranges/access/rbegin.cc: Likewise.
3133 * testsuite/std/ranges/access/rend.cc: Likewise.
3134 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
3135 test_range is the same as its iterator type.
3136 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
3137 operator- overloads to satisfy sized_sentinel_for when the iterator
3138 satisfies random_access_iterator.
3140 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
3143 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
3144 static assertion to object types.
3147 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
3148 clock_gettime instead of explicit glibc version check.
3149 * configure: Regenerate.
3151 2020-01-28 Martin Liska <mliska@suse.cz>
3154 * include/std/atomic: Fix typo.
3155 * include/std/optional: Likewise.
3157 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
3159 * configure: Regenerate.
3161 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
3164 * include/std/span (span): Fix deduction guide.
3165 * testsuite/23_containers/span/deduction.cc: New test.
3167 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
3169 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
3170 (__cmp_cat::_Ord::equivalent): Add enumerator.
3171 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
3173 (partial_ordering, weak_ordering, strong_ordering): Remove
3174 constructors taking __cmp_cat::_Eq parameters. Use renamed
3177 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
3179 * acinclude.m4: Handle `--with-toolexeclibdir='.
3180 * Makefile.in: Regenerate.
3181 * aclocal.m4: Regenerate.
3182 * configure: Regenerate.
3183 * doc/Makefile.in: Regenerate.
3184 * include/Makefile.in: Regenerate.
3185 * libsupc++/Makefile.in: Regenerate.
3186 * po/Makefile.in: Regenerate.
3187 * python/Makefile.in: Regenerate.
3188 * src/Makefile.in: Regenerate.
3189 * src/c++11/Makefile.in: Regenerate.
3190 * src/c++17/Makefile.in: Regenerate.
3191 * src/c++98/Makefile.in: Regenerate.
3192 * src/filesystem/Makefile.in: Regenerate.
3193 * testsuite/Makefile.in: Regenerate.
3195 2020-01-23 Alexandre Oliva <oliva@adacore.com>
3197 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
3198 * configure: Rebuild.
3200 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
3202 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
3205 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
3207 * include/Makefile.in: Regenerate.
3209 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
3211 * doc/xml/faq.xml: Fix grammar.
3212 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
3213 * doc/xml/manual/spine.xml: Update copyright years.
3214 * doc/html/*: Regenerate.
3216 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
3218 * doc/xml/faq.xml: Update for SVN -> Git transition.
3219 * doc/xml/manual/appendix_contributing.xml: Likewise.
3220 * doc/xml/manual/status_cxx1998.xml: Likewise.
3221 * doc/xml/manual/status_cxx2011.xml: Likewise.
3222 * doc/xml/manual/status_cxx2014.xml: Likewise.
3223 * doc/xml/manual/status_cxx2017.xml: Likewise.
3224 * doc/xml/manual/status_cxx2020.xml: Likewise.
3225 * doc/xml/manual/status_cxxtr1.xml: Likewise.
3226 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
3228 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
3230 * include/Makefile.am: Add coroutine to the std set.
3231 * include/Makefile.in: Regenerated.
3232 * include/std/coroutine: New file.
3234 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
3237 * include/bits/c++config: Only do PSTL config when the header is
3238 present, to fix freestanding.
3239 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
3240 functions if they were detected by configure.
3242 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
3243 Matthew Bauer <mjbauer95@gmail.com>
3244 Jonathan Wakely <jwakely@redhat.com>
3246 PR bootstrap/64271 (partial)
3247 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
3249 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
3250 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
3251 definitions with NetBSD upstream.
3252 (ctype_base::blank): Use _CTYPE_BL.
3253 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
3255 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
3256 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
3257 parameters to unsigned char.
3258 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
3260 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
3263 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
3264 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
3265 (_Equality_base): Remove.
3266 (_Equality<>::_M_equal): Review implementation. Use
3267 std::is_permutation.
3268 * testsuite/23_containers/unordered_multiset/operators/1.cc
3269 (Hash, Equal, test02, test03): New.
3270 * testsuite/23_containers/unordered_set/operators/1.cc
3271 (Hash, Equal, test02, test03): New.
3273 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
3276 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
3277 Move here from <bits/range_access.h> and define using __int128 when
3279 (__is_integer_like, __is_signed_integer_like): Move here from
3280 <bits/range_access.h>.
3281 (weakly_incrementable): Use __is_signed_integer_like.
3282 * include/bits/range_access.h (__max_diff_type, __max_size_type)
3283 (__is_integer_like, __is_signed_integer_like): Move to
3284 <bits/iterator_concepts.h>.
3285 (__make_unsigned_like_t): Move here from <ranges>.
3286 * include/std/ranges (__make_unsigned_like_t): Move to
3287 <bits/range_access.h>.
3288 (iota_view): Replace using-directive with using-declarations.
3289 * testsuite/std/ranges/iota/93267.cc: New test.
3290 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
3292 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
3295 * include/bits/fs_path.h (path::generic_string<C,A>)
3296 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
3297 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
3298 root-dir is converted to forward slash in generic pathname.
3299 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
3300 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
3303 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
3305 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
3306 (__atomic_float): Add default member initializer for C++20.
3307 * include/std/atomic (atomic): Likewise.
3308 (atomic::atomic()): Remove noexcept-specifier on default constructor.
3309 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
3310 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
3312 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
3313 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
3314 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
3315 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
3316 expected result for is_trivially_default_constructible.
3317 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
3318 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
3319 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
3320 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
3321 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
3322 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
3323 expected results for is_trivially_default_constructible.
3324 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
3327 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
3329 * testsuite/util/testsuite_iterators.h: Improve comment.
3331 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
3332 initialization syntax.
3335 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
3336 of base class independent of __cplusplus value.
3337 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
3338 type defined in the base class
3339 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
3340 * testsuite/24_iterators/istreambuf_iterator/requirements/
3341 base_classes.cc: Adjust expected base class for C++98.
3343 2020-01-09 Olivier Hainque <hainque@adacore.com>
3345 * doc/xml/manual/appendix_contributing.xml: Document _C2
3346 as a reserved identifier, by VxWorks.
3347 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
3348 * include/bits/stl_multimap.h: Likewise.
3350 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
3352 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
3353 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
3354 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
3355 partial specialization to disambiguate the two constrained
3358 * include/experimental/type_traits (experimental::is_pod_v): Disable
3359 -Wdeprecated-declarations warnings around reference to std::is_pod.
3360 * include/std/type_traits (is_pod_v): Likewise.
3361 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
3362 is_standard_layout and is_trivial. Do not check is_pod for C++20.
3363 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
3364 Add -Wno-deprecated for C++20.
3365 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
3366 * testsuite/20_util/is_pod/value.cc: Likewise.
3367 * testsuite/experimental/type_traits/value.cc: Likewise.
3369 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
3371 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
3372 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
3373 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
3375 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
3378 * include/bits/random.h (operator>>): Check stream operation succeeds.
3379 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
3381 (operator>>): Remove redundant __istream_type typedefs. Check stream
3383 (__extract_params): New function to fill a vector from a stream.
3384 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
3387 * config/abi/pre/gnu.ver: Add new exports.
3388 * include/std/memory_resource (memory_resource::~memory_resource()):
3389 Do not define inline.
3390 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
3391 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
3393 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
3394 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
3396 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
3399 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
3401 (_Hashtable<>::__fwd_value_for): New.
3402 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
3404 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
3405 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
3406 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
3408 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
3409 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
3411 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
3413 * testsuite/23_containers/unordered_set/92124.cc: New.
3415 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
3418 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
3419 detailed error reporting for remove_all. Check result of recursive
3420 call before incrementing iterator.
3421 (remove_all(const path&), remove_all(const path&, error_code&)): Use
3423 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
3424 result of recursive call before incrementing iterator.
3425 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
3426 are reported correctly.
3427 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
3429 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
3431 * include/std/condition_variable
3432 (condition_variable_any::wait_on): Rename to match current draft
3434 (condition_variable_any::wait_on_until): Likewise.
3435 (condition_variable_any::wait_on_for): Likewise.
3436 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
3437 Adjust tests to account for renamed methods.
3439 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
3442 * include/bits/stl_tree.h
3443 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
3444 std::move_if_noexcept by std::move.
3445 * testsuite/23_containers/map/92124.cc: New.
3446 * testsuite/23_containers/set/92124.cc: New.
3448 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
3450 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
3451 (stop_source): Likewise (LWG 3362).
3452 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
3455 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
3456 (lexicographical_compare_three_way): Do not depend on
3458 * include/std/version (__cpp_lib_three_way_comparison): Only define
3459 when __cpp_lib_concepts is defined.
3460 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3462 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
3464 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3465 Only define four-argument overload when __cpp_lib_concepts is defined.
3467 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
3469 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
3471 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3473 Update copyright years.
3475 Copyright (C) 2020 Free Software Foundation, Inc.
3477 Copying and distribution of this file, with or without modification,
3478 are permitted in any medium without royalty provided the copyright
3479 notice and this notice are preserved.