1 2020-06-29 Ville Voutilainen <ville.voutilainen@gmail.com>
4 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
6 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
7 Add a __nonnull__ attribute.
8 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
9 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
11 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
13 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
14 Add a __nonnull__ attribute.
15 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
16 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
18 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
21 * include/std/type_traits (is_literal_type, is_literal_type_v):
23 * include/std/variant (_Uninitialized):
24 Adjust the condition and the comment.
25 * testsuite/20_util/is_literal_type/deprecated-1z.cc: New.
26 * testsuite/20_util/is_literal_type/requirements/explicit_instantiation.cc:
28 * testsuite/20_util/is_literal_type/requirements/typedefs.cc: Likewise.
29 * testsuite/20_util/is_literal_type/value.cc: Likewise.
30 * testsuite/20_util/optional/constexpr/nullopt.cc:
31 Use __is_literal_type directly.
32 * testsuite/20_util/optional/nullopt.cc: Likewise.
33 * testsuite/20_util/variable_templates_for_traits.cc: Adjust.
34 * testsuite/20_util/variant/95915.cc: New.
35 * testsuite/20_util/variant/compile.cc: Add new test.
36 * testsuite/experimental/optional/constexpr/nullopt.cc:
37 Use __is_literal_type directly.
38 * testsuite/experimental/optional/nullopt.cc: Likewise.
39 * testsuite/experimental/type_traits/value.cc: Adjust.
40 * testsuite/util/testsuite_common_types.h:
41 Use __is_literal_type directly.
43 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
45 * include/std/charconv (__from_chars_binary): Ignore leading zeros.
46 * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
48 * testsuite/20_util/from_chars/3.cc: New test.
50 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
52 * include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
53 * include/std/charconv (__detail::__to_chars): Avoid
54 -Wsign-compare warning.
56 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
59 * include/std/charconv (__to_chars_i): Check for zero-sized
60 buffer unconditionally.
61 * testsuite/20_util/to_chars/95851.cc: New test.
63 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
65 * testsuite/20_util/from_chars/1_c++20_neg.cc: Check enumeration
67 * testsuite/20_util/from_chars/1_neg.cc: Likewise. Move dg-error
68 directives outside preprocessor condition.
70 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
73 * include/std/variant (__detail::__variant::_Build_FUN): Remove
74 partial specialization to prevent narrowing conversions to bool.
75 * testsuite/20_util/variant/compile.cc: Test non-narrowing
77 * testsuite/20_util/variant/run.cc: Likewise.
79 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
81 * doc/Makefile.in: Regenerate.
82 * include/Makefile.in: Regenerate.
83 * libsupc++/Makefile.in: Regenerate.
84 * po/Makefile.in: Regenerate.
85 * python/Makefile.in: Regenerate.
86 * src/Makefile.in: Regenerate.
87 * src/c++11/Makefile.in: Regenerate.
88 * src/c++17/Makefile.in: Regenerate.
89 * src/c++98/Makefile.in: Regenerate.
90 * src/filesystem/Makefile.in: Regenerate.
91 * testsuite/Makefile.in: Regenerate.
93 2020-06-22 David Edelsohn <dje.gcc@gmail.com>
95 * Makefile.am: Use -include.
96 * Makefile.in: Regenerate.
98 2020-06-21 David Edelsohn <dje.gcc@gmail.com>
100 * Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
101 * Makefile.in: Regenerate.
102 * configure.ac (tmake_file): Substitute.
103 * configure: Regenerate.
104 * configure.host (aix*): Define tmake_file.
105 * config/os/aix/t-aix: New file.
107 2020-06-20 Jason Merrill <jason@redhat.com>
109 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
110 Remove greedy_ops tests.
111 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
112 Remove greedy_ops tests.
114 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
117 * include/bits/stl_algobase.h (__size_to_integer(float))
118 (__size_to_integer(double), __size_to_integer(long double))
119 (__size_to_integer(__float128)): Cast return type explicitly.
120 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
121 Remove unused typedef.
123 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
125 * include/bits/stl_pair.h (_Index_tuple): Remove redundant
126 namespace qualification.
127 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
129 * include/std/tuple (_Head_base, _Tuple_impl, tuple_size)
130 (tuple_element, __get_helper, get, __make_tuple_impl)
131 (__make_1st_indices, __tuple_concater)
132 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
134 * include/std/utility (tuple_element, __is_tuple_like_impl)
135 (tuple_size, __pair_get, get): Likewise.
137 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
139 * include/bits/std_function.h (function): Define all member
142 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
144 * include/bits/stl_algo.h (__includes): Simplify the code.
146 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
148 * include/std/optional (optional()): Explicitly define it.
150 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
153 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
154 Construct the first value at *__first instead of on the stack.
155 (__uninitialized_default_n_1<true>): Likewise.
156 Improve comments on several of the non-standard algorithms.
157 * testsuite/20_util/specialized_algorithms/uninitialized_default/94540.cc:
159 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/94540.cc:
161 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/94540.cc:
163 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/94540.cc:
165 * testsuite/23_containers/vector/cons/94540.cc: New test.
167 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
169 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
170 Replace Value type with int so trivial code path is used.
171 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
174 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
176 * include/bits/stl_uninitialized.h (uninitialized_fill_n): Only
177 use std::fill_n when the size is an integral type.
178 (__uninitialized_default_n): Likewise.
179 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
181 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc:
183 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
186 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
189 * include/bits/atomic_base.h (__atomic_impl::load): Use the _Val
190 alias instead of deducing _Tp as an unqualified type.
191 (__atomic_impl::exchange): Use the _Val alias to remove volatile
192 from the reinterpret_cast result type.
194 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
196 * include/std/atomic (atomic): Add static assertions.
197 * testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
199 2020-06-16 Patrick Palka <ppalka@redhat.com>
202 * testsuite/20_util/is_constructible/94003.cc: New test.
204 2020-06-15 Jonathan Wakely <jwakely@redhat.com>
206 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
207 Update value for C++20.
208 * include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
209 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
210 Update expected value.
211 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
214 2020-06-15 Paul Keir <paul.keir@uws.ac.uk>
216 * include/bits/char_traits.h (char_traits::move): constexpr move with
217 overlap was using copy_backward incorrectly.
218 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
221 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
223 * testsuite/29_atomics/atomic_flag/clear/1.cc: Also test clear()
224 when the value is currently set.
225 * testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc:
226 Actually check the return value.
227 * testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc:
230 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
232 * include/bits/atomic_base.h (atomic_flag::test): Add missing
234 * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
235 dg-options and verify results of test function.
236 * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
238 2020-06-11 Jonathan Wakely <jwakely@redhat.com>
241 * include/bits/istream.tcc (basic_istream::ignore(streamsize, CharT)):
242 Only discard an extra character if we didn't already reach the
244 * src/c++98/istream.cc (istream::ignore(streamsiz, char))
245 (wistream::ignore(streamsize, wchar_t)): Likewise.
246 * testsuite/27_io/basic_istream/ignore/char/94749.cc: New test.
247 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc: New test.
249 2020-06-10 Patrick Palka <ppalka@redhat.com>
252 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
253 Also check that the iterator and sentinel have the same type before
254 applying the unwrapping optimization for __normal_iterator.
255 Split the check into two, one for the first iterator/sentinel
256 pair and another for second iterator/sentinel pair. Remove uses
257 of __niter_base, and remove uses of std::move on a
259 * include/bits/ranges_algobase.h (__equal_fn): Likewise.
260 (__copy_or_move): Likewise. Perform similar adjustments for
261 the reverse_iterator and move_iterator optimizations. Inline
262 the checks into the if-constexprs, and use using-declarations to
263 make them less visually noisy. Remove uses of __niter_wrap.
264 (__copy_or_move_backward): Likewise.
265 * testsuite/25_algorithms/copy/95578.cc: New test.
266 * testsuite/25_algorithms/copy_backward/95578.cc: New test.
267 * testsuite/25_algorithms/equal/95578.cc: New test.
268 * testsuite/25_algorithms/lexicographical_compare/95578.cc: New test.
269 * testsuite/25_algorithms/move/95578.cc: New test.
270 * testsuite/25_algorithms/move_backward/95578.cc: New test.
272 2020-06-10 François Dumont <fdumont@gcc.gnu.org>
273 Jonathan Wakely <jwakely@redhat.com>
275 * include/bits/deque.tcc (__lex_cmp_dit): New.
276 (__lexicographical_compare_aux1): Define overloads for deque
278 * include/bits/stl_algobase.h (__lexicographical_compare::__3way):
279 New static member function.
280 (__lexicographical_compare<true>::__3way): Likewise.
281 (__lexicographical_compare<true>::__lc): Use __3way.
282 (__lexicographical_compare_aux): Rename to
283 __lexicographical_compare_aux1 and declare overloads for deque
285 (__lexicographical_compare_aux): Define new forwarding function
286 that calls __lexicographical_compare_aux1 and declare new overloads
288 (lexicographical_compare): Do not use __niter_base on
290 * include/debug/safe_iterator.tcc
291 (__lexicographical_compare_aux): Define overloads for safe
293 * testsuite/25_algorithms/lexicographical_compare/1.cc: Add
294 checks with random access iterators.
295 * testsuite/25_algorithms/lexicographical_compare/deque_iterators/1.cc:
298 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
300 * include/bits/stl_iterator.h (move_iterator::operator=): Define.
301 * testsuite/24_iterators/move_iterator/dr3265.cc: New test.
303 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
305 * include/std/optional (bad_optional_access): Define default
306 constructor and destructor as defaulted.
307 * testsuite/20_util/optional/bad_access.cc: New test.
309 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
311 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
313 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
315 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
317 * include/bits/unique_ptr.h (operator<<): Define for C++20.
318 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
320 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
322 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
323 (__detail::__cat, __detail::__diff): Move to class scope in the
324 relevant __iterator_traits specializations.
325 (__iterator_traits<>): Use nested class templates instead of ones from
327 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
328 class scope in iterator_traits<common_iterator<I, S>>.
329 (iterator_traits<common_iterator<I, S>>): Use nested class template
330 instead of __detail::__common_iter_ptr.
332 2020-06-04 François Dumont <fdumont@gcc.gnu.org>
334 * include/bits/stl_algo.h (__copy_n_a): Move to ...
335 * include/bits/stl_algobase.h (__copy_n_a): ...here. Add __strict
337 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
339 (__niter_base(const _Safe_iterator<_Ite, _Seq,
340 random_access_iterator_tag>&)): Declare.
341 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
342 _Deque_iterator<>)): Declare.
343 * include/bits/deque.tcc
344 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
345 _Deque_iterator<>)): New.
346 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
348 * include/bits/streambuf_iterator.h
349 (__copy_n_a(istreambuf_iterator<>, _Size, _CharT*, bool)): Adapt.
350 * include/debug/safe_iterator.tcc (__niter_base): New.
351 * testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc
353 * testsuite/25_algorithms/copy/streambuf_iterators/char/debug/deque_neg.cc:
355 * testsuite/25_algorithms/copy_n/debug/istreambuf_ite_deque_neg.cc:
357 * testsuite/25_algorithms/copy_n/istreambuf_iterator/2.cc: New test.
358 * testsuite/25_algorithms/copy_n/istreambuf_iterator/deque.cc:
361 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
363 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
364 ranges::copy for positive values.
365 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
366 integral type and only call __copy_n for positive values.
367 * testsuite/util/testsuite_iterators.h
368 (random_access_iterator_wrapper::operator+=): Fix range check for
370 (output_container, input_container, forward_container)
371 (bidirectional_container, random_access_container): New alias
373 * testsuite/25_algorithms/copy_n/5.cc: New test.
375 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
378 * include/debug/deque (deque(const _Base&)): Replace parameter
379 with a struct that wraps a const _Base&.
380 * include/debug/forward_list (forward_list(_Base_ref)): New
382 * include/debug/list (list(const _Base&)): Replace parameter
383 with a struct that wraps a const _Base&.
384 * include/debug/map.h (map(const _Base&)): Likewise.
385 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
386 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
387 * include/debug/set.h (set(const _Base&)): Likewise.
388 * include/debug/unordered_map (unordered_map(const _Base&))
389 (unordered_multimap(const _Base&)): Likewise.
390 * include/debug/unordered_set (unordered_set(const _Base&))
391 (unordered_multiset(const _Base&)): Likewise.
392 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
393 Adjust dg-error line number.
394 * include/debug/vector (vector(const _Base&)): Likewise.
395 * testsuite/23_containers/deque/debug/90102.cc: New test.
396 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
397 * testsuite/23_containers/list/debug/90102.cc: New test.
398 * testsuite/23_containers/map/debug/90102.cc: New test.
399 * testsuite/23_containers/multimap/debug/90102.cc: New test.
400 * testsuite/23_containers/multiset/debug/90102.cc: New test.
401 * testsuite/23_containers/set/debug/90102.cc: New test.
402 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
403 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
404 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
405 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
406 * testsuite/23_containers/vector/debug/90102.cc: New test.
408 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
411 * include/bits/fs_path.h (path::_S_to_string): Move to
412 namespace-scope and rename to ...
413 (__detail::__string_from_range): ... this.
414 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
415 convert a char sequence containing UTF-8 to wstring.
416 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
417 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
418 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
419 __string_from_range to obtain a contiguous range and
420 __wstr_from_utf8 to obtain a wide string.
421 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
422 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
424 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
425 Use __wstr_from_utf8.
427 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
429 * testsuite/util/testsuite_iterators.h:
430 (input_iterator_wrapper::operator++(int)): Return proxy object.
432 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
434 * doc/xml/manual/evolution.xml: Document deprecation of
435 __is_nullptr_t and removal of std::allocator members.
436 * doc/html/manual/api.html: Regenerate.
438 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
440 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
441 * doc/xml/manual/evolution.xml: Likewise.
442 * doc/html/manual/api.html: Regenerate.
443 * doc/html/manual/containers.html: Regenerate.
445 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
447 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
448 * doc/html/faq.html: Regenerate.
450 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
452 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
455 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
457 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
458 www.cs.princeton.edu to https.
459 * doc/html/manual/policy_data_structures.html: Regenerate.
461 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
463 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
464 * configure: Rebuild.
466 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
469 * configure: Regenerated.
471 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
474 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
475 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
476 (unordered_map<>::insert_or_assign): Adapt.
478 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
481 * include/bits/atomic_base.h (__atomic_impl::load): Add
482 cv-qualifiers to parameter so that _Tp is deduced as the
484 * testsuite/29_atomics/atomic_float/95282.cc: New test.
486 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
489 * include/std/ranges (transform_view::_Sentinel): Allow hidden
490 friends to work with _Iterator<true> and _Iterator<false>.
491 (join_view::_Sentinel): Likewise.
492 * testsuite/std/ranges/adaptors/95322.cc: New test.
494 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
497 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
498 operators to use the correct operations on the underlying
500 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
502 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
504 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
506 2020-05-26 Patrick Palka <ppalka@redhat.com>
509 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
510 Remove and instead define it ...
511 (common_iterator::_Proxy): ... here.
512 (common_iterator::operator->): Use it.
513 * testsuite/24_iterators/common_iterator/2.cc: New test.
514 * testsuite/std/ranges/adaptors/95322.cc: New test.
516 2020-05-23 Patrick Palka <ppalka@redhat.com>
519 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
520 dg-additional-options. Avoid unused-but-set-variable warning.
522 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
525 * include/debug/helper_functions.h (__get_distance): Only declare
526 as a constexpr function for C++14 and up.
527 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
529 * include/bits/fs_path.h (__detail::_S_range_begin)
530 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
531 overloaded function template __detail::__effective_range.
532 (__detail::__effective_range): New overloaded function template to
533 create a basic_string or basic_string_view for an effective range.
534 (__detail::__value_type_is_char): Use __detail::__effective_range.
535 Do not use remove_const on value type.
536 (__detail::__value_type_is_char_or_char8_t): Likewise.
537 (path::path(const Source&, format))
538 (path::path(const Source&, const locale&))
539 (path::operator/=(const Source&), path::append(const Source&))
540 (path::concat(const Source&)): Use __detail::__effective_range.
541 (path::_S_to_string(InputIterator, InputIterator)): New function
542 template to create a string view if possible, or string otherwise.
543 (path::_S_convert): Add overloads that convert a string returned
544 by __detail::__effective_range. Use if-constexpr to inline conversion
545 logic from all overloads of _Cvt::_S_convert.
546 (path::_S_convert_loc): Add overload that converts a string. Use
547 _S_to_string to avoid allocation when possible.
548 (path::_Cvt): Remove.
549 (path::operator+=(CharT)): Remove indirection through path::concat.
550 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
551 overload for non-const pointers, to avoid constructing a std::string.
552 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
553 compilation with call to _S_convert.
555 * include/bits/fs_path.h (__detail::_S_range_begin)
556 (__detail::_S_range_end): Remove unintentional static specifiers.
557 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
558 (__detail::_S_range_end): Likewise.
560 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
561 Replace alias template with variable template. Don't remove const.
562 (filesystem::__detail::__is_path_src): Replace overloaded function
563 template with variable template and specializations.
564 (filesystem::__detail::__is_path_iter_src): Replace alias template
566 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
568 (filesystem::__detail::_Path2): New alias template for checking
569 InputIterator requirements.
570 (filesystem::__detail::__constructible_from): Remove.
571 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
572 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
573 constructor arguments of void and void* types.
575 2020-05-21 Matthias Kretz <kretz@kde.org>
577 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
578 allowing runtest to work without arguments.
579 * testsuite/Makefile.in: Regenerate.
581 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
584 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
585 Reorder constraints to avoid recursion when constructors use
586 iterator_traits (LWG 3420).
587 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
589 * include/experimental/socket (basic_socket::is_open()
590 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
592 * include/experimental/bits/net.h (__endpoint, __protocol)
593 (__acceptable_protocol, __inet_protocol): New concepts.
594 (__detail::__is_endpoint): Move trait from <experimental/socket>.
595 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
597 (__endpoint, __protocol, __acceptable_protocol): New variable
599 * include/experimental/socket (__is_endpoint): Move to net.h header.
600 (basic_socket, basic_socket_acceptor): Check requirements.
602 * include/experimental/executor (use_future_t::use_future_t()): Fix
603 incorrect noexcept-specifier.
604 * include/experimental/internet (basic_resolver_results): Adjust
606 * include/experimental/socket (__basic_socket_impl::release): Add
608 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
610 (basic_socket::release(), basic_socket::release(error_code&)): Add
611 missing member functions.
612 (basic_socket::is_open()): Add nodiscard attribute.
613 (basic_socket::close(error_code&)): Pass argument to base function.
614 (basic_socket_acceptor::release())
615 (basic_socket_acceptor::release(error_code&)): Add missing member
617 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
618 (basic_socket_streambuf::error()): Add noexcept.
619 (basic_socket_iostream::error()): Likewise.
620 * testsuite/experimental/net/socket/basic_socket.cc: New test.
622 * include/experimental/buffer: Replace typedefs with
624 * include/experimental/executor: Likewise.
625 * include/experimental/internet: Likewise.
626 * include/experimental/socket: Likewise.
627 * include/experimental/timer: Likewise.
629 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
632 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
634 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
636 (random_device::_M_init): Use __x86_rdseed_rdrand when both
637 instructions are available.
638 * testsuite/26_numerics/random/random_device/94087.cc: New test.
640 2020-05-19 Patrick Palka <ppalka@redhat.com>
643 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
645 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
647 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
650 * configure: Regenerated.
652 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
654 * configure: Regenerated.
656 2020-05-13 Alexandre Oliva <oliva@adacore.com>
659 * include/experimental/memory_resource
660 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
661 x86-vxworks as on x86-solaris.
662 (__resource_adaptor_imp::do_deallocate): Likewise.
663 * testsuite/experimental/memory_resource/new_delete_resource.cc:
665 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
666 (test03): Drop max-align test for char-aligned alloc.
668 2020-05-08 Ulrich Drepper <drepper@redhat.com>
670 * include/bits/atomic_base.h (atomic_flag): Implement test member
672 * include/std/version: Define __cpp_lib_atomic_flag_test.
673 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
674 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
676 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
678 PR libstdc++/94971 (partial)
679 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
680 std::sample using macro to work in parallel mode.
681 (__sort_fn): Likewise for std::sort.
682 (ranges::__nth_element_fn): Likewise for std::nth_element.
683 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
684 Likewise for std::__min_cmp.
685 * include/parallel/algobase.h (lexicographical_compare_three_way):
686 Add to namespace std::__parallel.
689 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
690 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
691 (_UnguardedIterator::operator _RAIter): Add const qualifier.
692 (operator<(_GuardedIterator&, _GuardedIterator&)
693 (operator<=(_GuardedIterator&, _GuardedIterator&)
694 (operator<(_UnguardedIterator&, _UnguardedIterator&)
695 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
696 parameters to const references.
698 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
700 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
701 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
703 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
705 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
706 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
707 * include/bits/stl_bvector.h (__fill_bvector): Move outside
708 _GLIBCXX_STD_C namespace.
709 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
711 (__fill_a1): ...this.
712 * testsuite/25_algorithms/fill/bvector/1.cc: New.
714 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
716 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
718 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
720 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
721 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
723 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
724 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
727 2020-05-06 Martin Liska <mliska@suse.cz>
730 2020-05-05 Martin Liska <mliska@suse.cz>
732 * include/parallel/multiway_merge.h:
733 Use const for _Compare template argument.
735 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
737 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
738 versions for GCC 9.[123] and 10.1 releases.
739 * doc/html/*: Regenerate.
741 2020-05-06 Jakub Jelinek <jakub@redhat.com>
743 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
744 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
745 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
746 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
747 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
748 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
749 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
751 2020-05-05 Martin Liska <mliska@suse.cz>
754 * include/parallel/multiway_merge.h:
755 Use const for _Compare template argument.
757 2020-05-04 Fangrui Song <maskray@google.com>
759 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
761 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
763 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
764 * doc/html/*: Regenerate.
767 * src/c++17/memory_resource.cc
768 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
771 2020-05-04 Nathan Sidwell <nathan@acm.org>
774 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
775 ptrdiff_t before negation, to show intent more clearly.
777 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
780 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
781 Add comment about single-threaded behaviour.
782 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
783 class member access out of loop.
784 (synchronized_pool_resource::synchronized_pool_resource())
785 (synchronized_pool_resource::~synchronized_pool_resource())
786 (synchronized_pool_resource::release()): Check __gthread_active_p
787 before creating and/or deleting the thread-specific data key.
788 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
790 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
791 path for single-threaded case.
792 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
793 Likewise. Return if unable to find a pool that owns the allocation.
794 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
796 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
798 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
801 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
804 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
805 usable in constant expressions.
806 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
809 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
812 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
814 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
815 Patrick Palka <ppalka@redhat.com>
818 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
819 Add trait to determine return type and an alias for it.
820 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
822 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
823 the result of ranges::iter_move.
824 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
825 instead of checking the result of ranges::iter_move.
826 * testsuite/24_iterators/customization_points/92894.cc: New test.
827 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
829 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
832 * include/std/type_traits (__is_complete_or_unbounded): Replace
834 * testsuite/17_intro/badnames.cc: New test.
836 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
839 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
840 (allocator_traits::_S_destroy)
841 (allocator_traits<allocator<T>>::construct): Use traits in
843 * include/bits/allocator.h (allocator<void>::construct)
844 (allocator<void>::destroy): Likewise.
845 * include/ext/malloc_allocator.h (malloc_allocator::construct)
846 (malloc_allocator::destroy): Likewise.
847 * include/ext/new_allocator.h (new_allocator::construct)
848 (new_allocator::destroy): Likewise.
849 * testsuite/20_util/allocator/89510.cc: New test.
850 * testsuite/ext/malloc_allocator/89510.cc: New test.
851 * testsuite/ext/new_allocator/89510.cc: New test.
853 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
856 * include/bits/basic_string.tcc: Update comment about explicit
859 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
862 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
863 Remove non-standard macro.
864 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
865 to indicate P1032R1 support.
866 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
867 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
868 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
869 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
870 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
871 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
872 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
874 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
875 * testsuite/21_strings/basic_string_view/operations/copy/char/
876 constexpr.cc: Likewise.
877 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
880 * include/bits/alloc_traits.h (_S_construct): Restore placement
881 new-expression for C++11/14/17 and call std::construct_at directly
883 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
884 function returning void.
885 * testsuite/20_util/specialized_algorithms/
886 uninitialized_value_construct/94831.cc: New test.
887 * testsuite/23_containers/vector/cons/94831.cc: New test.
889 2020-04-28 Patrick Palka <ppalka@redhat.com>
891 LWG 3433 subrange::advance(n) has UB when n < 0
892 * include/std/ranges (subrange::prev): Fix typo.
893 (subrange::advance): Handle a negative argument as per the proposed
894 resolution of LWG 3433.
895 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
897 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
898 Iain Sandoe <iain@sandoe.co.uk>
901 * include/std/coroutine: Implement handing for non-
902 class coroutine return types.
904 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
906 * include/experimental/executor (service_already_exists): Make default
907 constructor public (LWG 3414).
908 * testsuite/experimental/net/execution_context/make_service.cc: Check
909 the service_already_exists can be default constructed.
911 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
912 Jonathan Wakely <jwakely@redhat.com>
916 * include/std/any (any): Rename template parameters for consistency
918 (any::_Decay): Rename to _Decay_if_not_any.
919 (any::any(T&&):: Remove is_constructible from constraints. Remove
920 non-standard overload.
921 (any::any(in_place_type_t<T>, Args&&...))
922 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
923 (any::emplace(Args&&...))
924 (any::emplace(initializer_list<U>, Args&&...)):
925 Use decay_t instead of _Decay.
926 * testsuite/20_util/any/cons/90415.cc: New test.
927 * testsuite/20_util/any/cons/92156.cc: New Test.
928 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
930 * testsuite/20_util/any/modifiers/92156.cc: New test.
932 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
934 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
935 * doc/html/*: Regenerate.
937 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
938 value for C++17 to 201803L because P0858R0 is supported for C++17.
939 * include/std/version (__cpp_lib_array_constexpr): Likewise.
940 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
941 Check for value corresponding to P0031R0 features being tested.
942 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
943 Check for value corresponding to P0858R0 features being tested.
945 * include/std/version (__cpp_lib_three_way_comparison): Define for
948 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
950 * include/experimental/net/executor (system_context): Mark
951 system_context::system_context() = delete.
952 * testsuite/experimental/net/executor/1.cc: Add new
953 test to check system_context is not default constructible.
955 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
957 * include/std/coroutine: Update the inline namespace to __n4861.
958 Add the __cpp_lib_coroutine define, set to 201902L.
959 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
961 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
963 * include/std/execution (__cpp_lib_execution): Define to indicate
964 support for P0024R2 and P1001R2.
965 * include/std/version (__cpp_lib_execution): Define.
966 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
967 defined by <algorithm>, move other tests to new tests ...
968 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
969 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
970 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
971 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
973 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
974 different values for C++17 and C++20, to indicate different feature
975 sets. Update value for C++20 to indicate P1032R1 support.
976 * include/std/version (__cpp_lib_array_constexpr): Likewise.
977 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
978 Check feature test macro.
979 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
981 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
983 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
984 in C++17 mode and check feature test macro.
986 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
988 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
989 defined by <utility>.
991 * include/std/functional (__cpp_lib_concepts): Update macro value to
992 indicate P1964R2 support.
993 * include/std/version (__cpp_lib_concepts): Likewise.
994 * testsuite/std/concepts/1.cc: Adjust expected value.
995 * testsuite/std/concepts/2.cc: Likewise.
997 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
998 __cpp_lib_constexpr_functional.
999 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
1000 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
1002 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
1003 indicate P1006R1 support.
1004 (__cpp_lib_to_address): Define to indicate P0653R2 support.
1005 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
1007 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
1009 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
1011 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
1013 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
1014 Define to indicate P0339R6 support.
1015 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
1016 indicate P0457R2 support.
1017 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
1018 to indicate P0758R1 support.
1019 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
1020 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
1021 * include/std/version (__cpp_lib_atomic_float)
1022 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
1023 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
1024 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
1025 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
1026 (__cpp_lib_to_address): Define.
1027 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
1029 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
1031 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
1033 * include/std/version (__cpp_lib_map_insertion)
1034 (__cpp_lib_unordered_map_insertion): Remove.
1036 * include/std/condition_variable (__cpp_lib_jthread): Remove
1037 redundant definition.
1038 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
1039 indicate P1869R1 support.
1040 * include/std/version (__cpp_lib_jthread): Update value.
1041 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
1042 for updated macro value.
1043 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
1045 * testsuite/30_threads/jthread/1.cc: Likewise.
1046 * testsuite/30_threads/jthread/2.cc: Likewise.
1047 * testsuite/30_threads/stop_token/1.cc: Likewise.
1048 * testsuite/30_threads/stop_token/2.cc: Likewise.
1050 * testsuite/21_strings/basic_string/erasure.cc: Check for
1051 __cpp_lib_erase_if macro.
1052 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
1054 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1055 * testsuite/23_containers/list/erasure.cc: Likewise.
1056 * testsuite/23_containers/map/erasure.cc: Likewise.
1057 * testsuite/23_containers/set/erasure.cc: Likewise.
1058 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1059 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1060 * testsuite/23_containers/vector/erasure.cc: Likewise.
1062 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
1064 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
1065 to define operator<=>.
1066 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
1068 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
1069 * doc/Makefile.in: Regenerate.
1070 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
1072 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
1073 to the C++11 status table.
1074 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
1075 proposals with table matching contents of the C++14 standard.
1076 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
1078 * doc/html/*: Regenerate.
1081 * include/std/type_traits (__is_nt_constructible_impl): Add partial
1082 specializations for bounded arrays with non-empty initializers.
1083 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
1085 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
1087 * testsuite/lib/libstdc++.exp: Add additional_flags=
1088 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
1089 compiling with a newer Thread Building Blocks.
1091 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
1093 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1095 * testsuite/20_util/is_constructible/51185.cc: Make test class a
1096 non-aggregate so that the test verifies the same thing in all -std
1098 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
1099 results for some types when paren-init for aggregates is supported.
1101 * include/std/version (__cpp_lib_three_way_comparison): Update value.
1102 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
1103 (__detail::__synth3way): Add noexcept-specifier.
1105 * include/bits/stl_map.h (map): Define operator<=> and remove
1106 operator< for C++20.
1107 * include/bits/stl_multimap.h (multimap): Likewise.
1108 * include/bits/stl_multiset.h (multiset): Likewise.
1109 * include/bits/stl_set.h (set): Likewise.
1110 * include/bits/stl_tree.h (_Rb_tree): Likewise.
1111 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
1112 operator!= for C++20.
1113 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
1114 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
1115 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
1116 * include/debug/set.h (__gnu_debug::set): Likewise.
1117 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
1118 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
1119 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
1120 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
1122 2020-04-20 Matthias Kretz <kretz@kde.org>
1124 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
1126 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
1128 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
1129 * include/bits/stl_stack.h (stack): Likewise.
1130 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
1131 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
1133 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
1134 Remove redundant operator!= for C++20.
1135 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
1137 * include/debug/unordered_map (unordered_map, unordered_multimap):
1139 * include/debug/unordered_set (unordered_set, unordered_multiset):
1143 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
1144 redundant assignment in constructor.
1146 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
1148 * include/std/chrono (duration, time_point): Define operator<=> and
1149 remove redundant operator!= for C++20.
1150 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
1152 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
1155 * testsuite/util/native_type/native_priority_queue.hpp: Use
1156 allocator_traits to rebind allocator.
1158 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
1160 * include/bits/forward_list.h (forward_list): Define operator<=> and
1161 remove redundant comparison operators for C++20.
1162 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
1163 * include/bits/stl_deque.h (deque): Likewise.
1164 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
1165 * include/bits/stl_list.h (list): Likewise.
1166 * include/bits/stl_vector.h (vector): Likewise.
1167 * include/debug/deque (__gnu_debug::deque): Likewise.
1168 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
1169 * include/debug/list (__gnu_debug::list): Likewise.
1170 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
1172 * include/debug/vector (__gnu_debug::vector): Likewise.
1173 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
1174 operator<=> for C++20.
1175 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
1176 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
1177 * testsuite/23_containers/list/cmp_c++20.cc: New test.
1178 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
1179 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
1181 * include/bits/basic_string.h (basic_string): Define operator<=> and
1182 remove redundant comparison operators for C++20.
1183 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
1184 Add comparison_category members.
1185 (__detail::__char_traits_cmp_cat): New helper to get comparison
1186 category from char traits class.
1187 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
1189 (sub_match): Define operator<=> and remove redundant comparison
1190 operators for C++20.
1191 (match_results): Remove redundant operator!= for C++20.
1192 * include/std/string_view (basic_string_view): Define operator<=> and
1193 remove redundant comparison operators for C++20.
1194 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
1196 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
1198 * testsuite/21_strings/basic_string_view/operations/copy/char/
1199 constexpr.cc: Initialize variable.
1200 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
1201 constexpr.cc: Likewise.
1202 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
1203 dg-do directive and remove comments showing incorrect signatures.
1204 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
1206 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
1208 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
1210 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
1212 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
1214 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
1215 name of unused parameter.
1217 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
1219 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
1220 (directory_entry): Define operator<=> and remove redundant comparison
1221 operators for C++20.
1222 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
1223 * include/bits/fs_path.h (path): Define operator<=> and remove
1224 redundant comparison operators for C++20.
1225 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
1226 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
1227 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
1228 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
1230 * include/bits/allocator.h (operator!=): Do not define for C++20.
1231 * include/bits/locale_classes.h (operator!=): Likewise.
1232 * include/bits/std_function.h (operator==(nullptr_t, const function&))
1233 (operator!=(const function&, nullptr_t))
1234 (operator!=(nullptr_t, const function&)): Likewise.
1235 * include/ext/bitmap_allocator.h (operator!=): Likewise.
1236 * include/ext/debug_allocator.h (operator!=): Likewise.
1237 * include/ext/extptr_allocator.h (operator!=): Likewise.
1238 * include/ext/malloc_allocator.h (operator!=): Likewise.
1239 * include/ext/mt_allocator.h (operator!=): Likewise.
1240 * include/ext/new_allocator.h (operator!=): Likewise.
1241 * include/ext/pool_allocator.h (operator!=): Likewise.
1242 * include/ext/throw_allocator.h (operator!=): Likewise.
1243 * include/std/bitset (bitset::operator!=): Likewise.
1244 * include/std/memory_resource (operator!=): Likewise.
1245 * include/std/scoped_allocator (operator!=): Likewise.
1247 * include/std/typeindex (operator<=>): Define for C++20.
1248 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
1250 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
1252 * libsupc++/compare (compare_three_way): Fix constraint so that
1253 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
1254 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
1258 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
1259 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
1260 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
1261 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
1262 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
1263 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
1267 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
1268 * testsuite/18_support/comparisons/categories/94565.cc: New test.
1270 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
1272 * include/std/coroutine: Update coroutines builtin define,
1275 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
1277 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
1278 (strong_order, weak_order, partial_order): Replace uses of <=> with
1279 compare_three_way function object (LWG 3324).
1280 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
1281 equality operator so that X satisfies three_way_comparable.
1282 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
1284 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
1286 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
1287 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
1288 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
1289 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
1290 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
1292 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
1294 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
1296 * include/std/complex (operator==(const T&, const complex<T>&))
1297 (operator!=(const complex<T>&, const complex<T>&))
1298 (operator!=(const complex<T>&, const T&))
1299 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
1300 * testsuite/26_numerics/slice/compare.cc: New test.
1302 * include/std/charconv (to_chars_result, from_chars_result): Add
1303 defaulted equality comparisons for C++20.
1304 * testsuite/20_util/from_chars/compare.cc: New test.
1305 * testsuite/20_util/to_chars/compare.cc: New test.
1307 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
1310 * include/std/charconv (__integer_to_chars_result_type)
1311 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
1313 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
1314 use of std::string_view with std::string.
1315 * testsuite/20_util/from_chars/2.cc: Likewise.
1316 * testsuite/20_util/to_chars/1.cc: Likewise.
1317 * testsuite/20_util/to_chars/2.cc: Likewise.
1319 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
1322 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
1323 usable in constant expressions for C++20.
1324 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
1325 _GLIBCXX20_CONSTEXPR.
1326 (std::char_traits<char>, std::char_traits<wchar_t>)
1327 (std::char_traits<char8_t>): Make move, copy and assign usable in
1328 constant expressions for C++20.
1329 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
1330 and copy usable in constant expressions for C++20.
1331 * include/std/string_view (basic_string_view::copy): Add
1332 _GLIBCXX20_CONSTEXPR.
1333 * testsuite/21_strings/basic_string_view/operations/copy/char/
1334 constexpr.cc: New test.
1335 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
1336 constexpr.cc: New test.
1338 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
1340 * doc/xml/manual/appendix_contributing.xml: Refer to Git
1341 documentation instead of Subversion. Switch to https.
1342 * doc/html/manual/appendix_contributing.html: Regenerate.
1344 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
1347 * include/bits/ptr_traits.h (__to_address): Add special case for debug
1348 iterators, to avoid dereferenceable check.
1349 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
1350 * testsuite/20_util/to_address/debug.cc: New test.
1352 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
1354 * testsuite/experimental/net/execution_context/use_service.cc:
1355 Require pthread and gthreads.
1357 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
1359 * doc/xml/manual/appendix_free.xml: Move "free books" list from
1361 * doc/html/manual/appendix_free.html: Regenerate.
1363 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
1365 Library-side tests for parenthesized aggregate init
1370 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
1371 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
1372 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
1373 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
1374 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
1375 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
1376 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
1377 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
1378 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
1380 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
1381 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
1382 * testsuite/20_util/variant/92878_92947.cc: Likewise.
1383 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
1385 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
1387 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
1389 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
1391 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
1393 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
1395 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
1396 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
1397 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
1399 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
1400 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
1402 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
1404 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
1406 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
1408 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
1411 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
1413 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
1414 for changes due to parenthesized aggregate-initialization in C++20.
1415 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
1416 with std::chrono::sys_time in C++20.
1418 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
1419 to constrain C++20 versions of comparison operators. Fix backwards
1420 logic of relational operators.
1421 (move_iterator): Use requires-clause to constrain comparison operators
1422 in C++20. Do not declare non-standard same-type overloads for C++20.
1423 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
1424 of comparisons and check using greedy_ops type.
1425 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
1426 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
1427 main function from compile-only test.
1428 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
1430 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
1432 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
1433 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
1434 C++20 concepts are required.
1435 * include/bits/stl_iterator_base_types.h: Likewise.
1436 * include/std/concepts: Likewise.
1437 * include/std/version: Likewise.
1438 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
1441 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
1442 (reverse_iterator::iterator_category): Define for C++20.
1443 (reverse_iterator): Define comparison operators correctly for C++20.
1444 (__normal_iterator): Add constraints to comparison operators for C++20.
1445 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
1446 overload for input iterators.
1447 (move_iterator): Add constraints to comparison operators for C++20.
1448 Define operator<=> for C++20.
1449 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
1450 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
1451 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
1452 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
1454 * include/bits/iterator_concepts.h (__detail::__decay_copy)
1455 (__detail::__member_begin, __detail::__adl_begin): Move here from
1456 <bits/range_access.h>.
1457 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
1458 * bits/range_access.h (__cust_access::__decay_copy)
1459 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
1460 <bits/iterator_concepts.h>.
1461 (ranges::iterator_t): Use __detail::__range_iter_t.
1462 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
1463 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
1464 (front_insert_iterator): Likewise.
1465 (insert_iterator): Implement changes from P0896R4 for C++20.
1466 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
1467 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
1468 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
1469 for inclusion in synopsis_c++20.cc which expects different signatures
1470 for some function templates.
1471 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
1473 * include/std/type_traits (__is_array_convertible): Move definition
1474 to immediately after is_convertible.
1476 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
1478 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
1479 (chrono::months, chrono::sys_days, chrono::local_t)
1480 (chrono::local_time, chrono::local_seconds, chrono::local_days):
1482 (chrono::time_point): Add missing static assert.
1483 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
1484 * testsuite/std/time/clock/file/overview.cc: New test.
1485 * testsuite/std/time/clock/file/members.cc: New test.
1486 * testsuite/std/time/syn_c++20.cc: New test.
1488 2020-03-25 Mike Crowe <mac@mcrowe.com>
1490 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
1492 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
1495 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
1497 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
1498 * include/std/chrono (filesystem::__file_clock): Here.
1499 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
1500 Define public member functions for C++20.
1501 (is_clock, is_clock_v): Define traits for C++20.
1502 * include/std/condition_variable (condition_variable::wait_until): Add
1503 check for valid clock.
1504 * include/std/future (_State_baseV2::wait_until): Likewise.
1505 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
1506 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
1508 * include/std/thread (this_thread::sleep_until): Likewise.
1509 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
1510 slow_clock with new namespace.
1511 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
1513 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
1515 * testsuite/30_threads/future/members/clock_neg.cc: New test.
1516 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
1517 Qualify slow_clock with new namespace.
1518 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
1519 clock_neg.cc: New test.
1520 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
1522 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
1523 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
1525 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
1526 slow_clock with new namespace.
1527 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
1528 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
1530 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
1531 * testsuite/std/time/traits/is_clock.cc: New test.
1532 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
1535 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
1538 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
1539 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
1540 Improve test coverage.
1543 * include/bits/fs_path.h (path::_S_str_convert): Replace first
1544 parameter with basic_string_view so that strings with different
1545 allocators can be accepted.
1546 (path::generic_string<C,T,A>()): Use basic_string object that uses the
1547 right allocator type.
1548 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
1549 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
1552 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
1555 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
1556 (__is_nt_default_constructible_impl): Remove.
1557 (__is_nothrow_default_constructible_impl): Remove.
1558 (__is_nt_constructible_impl): Add bool template parameter. Adjust
1559 partial specializations.
1560 (__is_nothrow_constructible_impl): Replace class template with alias
1562 (is_nothrow_default_constructible): Derive from alias template
1563 __is_nothrow_constructible_impl instead of
1564 __is_nothrow_default_constructible_impl.
1565 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
1567 * include/std/stop_token (stop_token::_Stop_state_ref): Define
1568 comparison operators explicitly if the compiler won't synthesize them.
1570 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
1571 __cpp_lib_concepts before using iter_reference_t.
1572 * include/bits/stream_iterator.h (istream_iterator): Check
1573 __cpp_lib_concepts before using default_sentinel_t.
1574 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
1577 * include/experimental/executor (executor::executor(Executor)): Call
1578 make_shared directly instead of _M_create. Create _Tgt1 object.
1579 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
1580 Call allocate_shared directly instead of _M_create. Create _Tgt2
1582 (executor::target_type): Add cast needed for new _Tgt interface.
1583 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
1584 (executor::_Tgt): Define the same interface whether RTTI is enabled or
1586 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
1587 std::type_info in the interface.
1588 (executor::_Tgt::_M_func): Add data member.
1589 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
1590 (executor::_Tgt1::_S_func): Define function to access target without
1592 (executor::_M_create): Remove.
1593 (operator==, operator!=): Simplify comparisons for executor.
1594 * include/experimental/socket (is_error_code_enum<socket_errc>):
1595 Define specialization before use.
1596 * testsuite/experimental/net/executor/1.cc: New test.
1598 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
1601 * include/experimental/executor (service_already_exists): Add default
1602 constructor. Declare make_service to be a friend.
1603 * testsuite/experimental/net/execution_context/make_service.cc: New
1606 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
1608 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
1609 a null pointer to functions with nonnull(1) attribute.
1611 2020-03-11 Patrick Palka <ppalka@redhat.com>
1613 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
1614 'address' -> 'std::__addressof'.
1615 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
1616 a non-forward input_range.
1617 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
1618 default constructor protected instead of deleted, like with
1619 input_iterator_wrapper.
1620 (test_range::iterator): Add comment explaining that this type is used
1621 only when the underlying wrapper is input_iterator_wrapper or
1622 output_iterator_wrapper. Remove delegating defaulted constructor so
1623 that the inherited default constructor is used instead.
1625 LWG 3286 ranges::size is not required to be valid after a call to
1626 ranges::begin on an input range
1627 * include/std/ranges (subrange::subrange): Split single-argument
1628 constructor into two, one constrained by _S_store_size and another by
1630 (take_view::begin): Call size() before calling ranges::begin(_M_base).
1631 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
1632 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
1634 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
1636 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
1637 instead of _M_current.
1638 (split_view::_OuterIter::operator++): Likewise.
1640 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
1641 (transform_view::_Iterator::operator*): Add noexcept-specifier.
1642 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
1643 (split_view::_OuterIter::__current): Add noexcept.
1644 (split_view::_InnerIter::__iter_swap): Remove.
1645 (split_view::_InnerIter::__iter_move): Remove.
1646 (split_view::_InnerIter::_M_i_current): New accessors.
1647 (split_view::_InnerIter::__at_end): Use _M_i_current().
1648 (split_view::_InnerIter::operator*): Likewise.
1649 (split_view::_InnerIter::operator++): Likewise.
1650 (iter_move(const _InnerIter&)): Likewise.
1651 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
1652 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
1653 for iter_move and iter_swap on split_view's inner iterator.
1656 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
1657 Change expression in noexcept-specifier to match function body.
1659 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
1660 comment explaining multiple dg-do directives.
1661 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
1662 so test is run as well as compiled.
1664 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
1667 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
1668 handle concatenations that change the type of the first component.
1669 (path::operator+=(basic_string_view<value_type>)): Likewise.
1670 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
1672 2020-03-06 Patrick Palka <ppalka@redhat.com>
1674 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
1675 join_view::_Sentinel<!_Const>.
1676 * testsuite/std/ranges/adaptors/join.cc: Augment test.
1679 * include/bits/range_access.h (__cust_access::_Empty::operator()):
1680 Declare return type to be bool instead of auto.
1681 * testsuite/std/ranges/adaptors/93978.cc: New test.
1683 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
1686 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
1687 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
1688 second argument to __glibcxx_rwlock_init.
1689 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
1692 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
1693 test to not fail due to PR 94063.
1694 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
1695 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
1697 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
1699 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
1702 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
1704 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
1705 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
1706 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
1707 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
1708 for return value, and in comparison.
1709 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
1712 * include/std/string_view: Include <bits/ostream_insert.h>.
1713 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
1715 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
1717 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
1719 2020-03-04 Patrick Palka <ppalka@redhat.com>
1722 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
1723 condition for when to use memset, making sure to additionally check that
1724 the output pointer's value type is a non-volatile byte type. Instead of
1725 requiring that the fill type is a byte type, just require that it's an
1727 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
1729 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
1731 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
1732 blocked by PR 94017.
1733 * testsuite/25_algorithms/fill/94017.cc: New test.
1734 * testsuite/25_algorithms/fill_n/94017.cc: New test.
1736 LWG 3355 The memory algorithms should support move-only input iterators
1738 * include/bits/ranges_uninitialized.h
1739 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
1740 to copy __ifirst, which could be a move-only input iterator. Use
1741 operator- instead of ranges::distance to compute distance from a sized
1743 (__uninitialized_copy_n_fn::operator()): Likewise.
1744 (__uninitialized_move_fn::operator()): Likewise.
1745 (__uninitialized_move_n_fn::operator()): Likewise.
1746 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
1747 attempting to copy __first.
1748 (__uninitialized_destroy_n_fn::operator()): Likewise.
1749 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1751 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
1753 * .../specialized_algorithms/uninitialized_move/constrained.cc:
1756 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
1757 protected instead of private.
1758 (test_sized_range_sized_sent): New.
1760 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
1761 New testsuite iterator.
1762 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
1763 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
1765 * include/bits/ranges_uninitialized.h
1766 (uninitialized_copy_fn::operator()): Pass a reference type as the first
1767 argument to is_nothrow_assignable_v.
1768 (uninitialized_copy_fn::operator()): Likewise.
1769 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
1770 with the input iterator stripped of its move_iterator.
1771 (uninitialized_move_n_fn::operator()): Likewise.
1772 (uninitialized_fill_fn::operator()): Pass a reference type as the first
1773 argument to is_nothrow_assignable_v.
1774 (uninitialized_fill_n_fn::operator()): Likewise.
1776 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
1779 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
1780 traits to control when to use memmove and memcmp optimizations.
1781 (__is_nonvolatile_trivially_copyable): New helper trait.
1782 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
1783 use memcmp optimization with volatile data.
1784 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
1785 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
1786 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
1787 (__copy_move_backward_a2): Likewise.
1788 (__equal_aux1): Use __memcmpable.
1789 (__lexicographical_compare_aux): Do not use memcmp optimization with
1791 * testsuite/25_algorithms/copy/94013.cc: New test.
1792 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
1793 * testsuite/25_algorithms/equal/94013.cc: New test.
1794 * testsuite/25_algorithms/fill/94013.cc: New test.
1795 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
1796 * testsuite/25_algorithms/move/94013.cc: New test.
1797 * testsuite/25_algorithms/move_backward/94013.cc: New test.
1799 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
1800 Avoid redundant iterator comparisons (LWG 3410).
1802 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
1805 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
1807 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
1809 * include/std/ranges (__detail::__maybe_empty_t): Rename to
1811 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
1813 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
1816 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
1818 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
1820 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1822 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
1823 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
1824 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
1825 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
1826 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
1828 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1829 Add libatomic option.
1830 * testsuite/30_threads/jthread/jthread.cc: Likewise.
1832 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
1834 * include/bits/stl_algo.h
1835 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
1836 * include/bits/stl_algobase.h: ...here.
1837 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
1839 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
1841 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
1843 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
1845 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
1846 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
1847 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
1848 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
1849 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
1850 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
1851 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
1855 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
1857 2020-02-28 Patrick Palka <ppalka@redhat.com>
1860 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1861 Fix condition for when to use memcmp, making it consistent with the
1862 corresponding condition used in std::lexicographical_compare.
1863 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
1865 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
1866 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
1867 existing signatures for C++2a.
1869 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1871 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
1872 test instead of just compiling it.
1874 2020-02-28 Patrick Palka <ppalka@redhat.com>
1876 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
1877 whenever the underlying range models common_range.
1879 * include/std/ranges (__detail::_CachedPosition): New struct.
1880 (views::filter_view::_S_needs_cached_begin): New member variable.
1881 (views::filter_view::_M_cached_begin): New member variable.
1882 (views::filter_view::begin): Use _M_cached_begin to cache its
1884 (views::drop_view::_S_needs_cached_begin): New static member variable.
1885 (views::drop_view::_M_cached_begin): New member variable.
1886 (views::drop_view::begin): Use _M_cached_begin to cache its result
1887 when _S_needs_cached_begin.
1888 (views::drop_while_view::_M_cached_begin): New member variable.
1889 (views::drop_while_view::begin): Use _M_cached_begin to cache its
1891 (views::reverse_view::_S_needs_cached_begin): New static member
1893 (views::reverse_view::_M_cached_begin): New member variable.
1894 (views::reverse_view::begin): Use _M_cached_begin to cache its result
1895 when _S_needs_cached_begin.
1896 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
1897 drop_view::begin caches its result.
1898 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
1899 that drop_while_view::begin caches its result.
1900 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
1901 filter_view::begin caches its result.
1902 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1903 reverse_view::begin caches its result.
1905 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1907 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1908 filesystems that silently truncate timestamps.
1909 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1912 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1913 -Wstringop-overflow warnings.
1915 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1917 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1918 -fdiagnostics-urls=never to options.
1920 2020-02-27 Patrick Palka <ppalka@redhat.com>
1922 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
1924 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
1925 (take_view::_Sentinel<_Const>): Likewise.
1926 (take_while_view::_Sentinel<_Const>): Likewise.
1927 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
1928 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1929 * testsuite/std/ranges/adaptors/take.cc: Augment test.
1930 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
1931 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1933 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
1934 base() of a vector<>::iterator is a pointer.
1935 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
1936 * testsuite/25_algorithms/move/constrained.cc: Likewise.
1937 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
1938 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
1940 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1941 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
1942 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1943 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1944 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1946 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1948 * include/debug/array (operator<=>): Define for C++20.
1949 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
1950 Adjust dg-error line numbers.
1951 * testsuite/23_containers/array/tuple_interface/
1952 tuple_element_debug_neg.cc: Likewise.
1954 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
1955 defining _GLIBCXX_ASSERTIONS.
1956 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1957 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1958 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1959 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1960 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1961 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1962 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
1963 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
1964 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
1965 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
1966 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
1967 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1969 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
1970 C++98 where the member function of the base class returns void.
1972 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
1973 equality comparisons that support value-initialized iterators.
1975 * include/bits/boost_concept_check.h (__function_requires): Add
1976 _GLIBCXX14_CONSTEXPR.
1977 * testsuite/25_algorithms/min/concept_checks.cc: New test.
1979 2020-02-26 Patrick Palka <ppalka@redhat.com>
1982 * include/std/ranges (split_view::_InnerIter::operator==): Compare
1983 the operands' _M_i rather than their _M_i.current().
1984 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1986 P1645R1 constexpr for <numeric> algorithms
1987 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
1988 partial_sum, adjacent_difference): Make conditionally constexpr for
1990 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
1992 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
1993 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
1994 constexpr for C++20.
1995 * include/std/version (__cpp_lib_constexpr_numeric): Define.
1996 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
1997 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
1998 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1999 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
2000 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
2001 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
2002 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
2003 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
2004 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
2005 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
2006 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
2008 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
2010 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
2011 variables in smaller scope and avoid calling ranges::distance when we
2012 know they are pointers. Remove statically-unreachable use of
2013 __builtin_unreachable().
2014 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
2017 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
2019 (__detail::__maybe_const_t): Likewise.
2020 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
2021 (transform_view, take_view, take_while_view, elements_view): Use
2023 (join_view, split_view): Use both.
2025 2020-02-25 Patrick Palka <ppalka@redhat.com>
2027 LWG 3397 basic_istream_view::iterator should not provide
2029 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
2031 (basic_istream_view:_Iterator::iterator_concept): ... this.
2032 * testsuite/std/ranges/istream_view.cc: Augment test.
2034 LWG 3325 Constrain return type of transformation function for
2036 * include/std/ranges (transform_view): Constrain the return type of the
2037 transformation function as per LWG 3325.
2038 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
2040 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
2041 * include/std/ranges (join_view::_Iterator::operator--): Require that
2042 range_reference_t<_Base> models common_range.
2043 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
2045 LWG 3301 transform_view::_Iterator has incorrect iterator_category
2046 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
2047 determination of iterator_category as per LWG 3301.
2048 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
2050 LWG 3292 iota_view is under-constrained
2051 * include/std/ranges (iota_view): Require that _Winc models semiregular
2053 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
2055 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
2057 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
2058 during constant evaluation. Call __builtin_memmove directly instead of
2060 (__copy_or_move_backward): Likewise.
2061 * include/bits/stl_algobase.h (__memmove): Remove.
2062 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
2063 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
2064 Use __builtin_memmove directly instead of __memmove.
2065 (__copy_move_a2): Do not use memmove during constant evaluation.
2066 (__copy_move_backward_a2): Use _IsMove constant to select correct
2067 __copy_move_backward specialization.
2068 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
2069 begin turned into moves during constant evaluation.
2071 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
2075 * include/bits/stl_algobase.h (__memmove): Cast away const before
2076 doing move assignment.
2077 * testsuite/25_algorithms/move/93872.cc: New test.
2078 * testsuite/25_algorithms/move_backward/93872.cc: New test.
2080 2020-02-24 Patrick Palka <ppalka@redhat.com>
2083 * include/bits/ranges_algobase.h (__copy_or_move,
2084 __copy_or_move_backward): Don't inspect the iter_value_t of the output
2085 iterator, instead inspect its iterator_traits directly.
2086 * include/bits/stl_iterator.h (back_insert_iterator::container):
2087 Conditionally initialize.
2088 (back_insert_iterator::difference_type): Conditionally define.
2089 (back_insert_iterator::back_insert_iterator): Conditionally define this
2090 default constructor.
2091 (front_insert_iterator::container): Conditionally initialize.
2092 (front_insert_iterator::difference_type): Conditionally define.
2093 (front_insert_iterator::front_insert_iterator): Conditionally define
2094 this default constructor.
2095 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
2096 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
2098 P0769R2 Add shift to <algorithm>
2099 * include/bits/ranges_algo.h (shift_left, shift_right): New.
2100 * testsuite/25_algorithms/shift_left/1.cc: New test.
2101 * testsuite/25_algorithms/shift_right/1.cc: New test.
2103 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
2105 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
2106 Make noexcept-specifier conditional.
2107 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
2110 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
2112 (operator==(istream_iterator, default_sentinel_t)): Add operator.
2113 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
2114 * include/bits/streambuf_iterator.h
2115 (istreambuf_iterator(default_sentinel_t)): Add constructor.
2116 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
2117 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
2119 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
2120 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
2122 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
2124 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
2125 (ranges::enable_view): Simplify (LWG 3326).
2126 * include/bits/range_access.h (ranges::enable_view): Declare.
2127 * include/bits/regex.h (__enable_view_impl): Remove partial
2129 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
2130 * include/bits/stl_set.h (__enable_view_impl): Likewise.
2131 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
2132 * include/debug/multiset.h (__enable_view_impl): Likewise.
2133 * include/debug/set.h (__enable_view_impl): Likewise.
2134 * include/debug/unordered_set (__enable_view_impl): Likewise.
2135 * include/experimental/string_view (ranges::enable_view): Define
2136 partial specialization.
2137 * include/std/span (ranges::enable_view): Likewise.
2138 * include/std/string_view (ranges::enable_view): Likewise.
2139 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
2141 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
2143 * include/std/optional (operator<=>(optional<T>, optional<U>))
2144 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
2146 * include/std/tuple (__tuple_cmp): New helper function for <=>.
2147 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
2148 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
2149 (operator<=>(monostate, monostate)): Define for C++20.
2150 * testsuite/20_util/optional/relops/three_way.cc: New test.
2151 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
2152 * testsuite/20_util/variant/89851.cc: Move to ...
2153 * testsuite/20_util/variant/relops/89851.cc: ... here.
2154 * testsuite/20_util/variant/90008.cc: Move to ...
2155 * testsuite/20_util/variant/relops/90008.cc: ... here.
2156 * testsuite/20_util/variant/relops/three_way.cc: New test.
2158 2020-02-20 Patrick Palka <ppalka@redhat.com>
2160 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
2162 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
2163 __maybe_refwrap to capture lvalue references by reference, and then use
2164 unwrap_reference_t to forward the by-reference captures as references.
2165 * testsuite/std/ranges/adaptors/split.cc: Augment test.
2166 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
2168 * include/std/ranges (iota_view): Forward declare _Sentinel.
2169 (iota_view::_Iterator): Befriend _Sentinel.
2170 (iota_view::_Sentinel::_M_equal): New member function.
2171 (iota_view::_Sentinel::operator==): Use it.
2172 (views::_Iota::operator()): Forward __f using the correct type.
2173 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
2174 with integers of different signedness, to appease iota_view's deduction
2176 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
2178 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
2180 * include/bits/range_access.h (ranges::begin): Reject array of
2182 (ranges::end, ranges::size): Require arrays to be bounded.
2183 (ranges::data): Require lvalue or borrowed_range.
2184 (ranges::iterator_t): Remove constraint.
2185 * testsuite/std/ranges/access/begin.cc: Do not check array of
2187 * testsuite/std/ranges/access/begin_neg.cc: New test.
2188 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
2189 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
2190 * testsuite/std/ranges/access/ssize.cc: Do not check array of
2193 * include/std/system_error (error_category::operator<=>)
2194 (operator<=>(const error_code&, const error_code&))
2195 (operator<=>(const error_condition&, const error_condition&)): Define
2197 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
2198 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
2200 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
2202 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
2203 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
2205 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
2206 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
2208 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
2209 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
2210 Remove incorrect comment.
2211 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
2214 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
2216 * include/std/thread (thread::id::operator<=>): Define for C++20.
2217 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
2218 functions in namespace std.
2219 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
2221 2020-02-19 Patrick Palka <ppalka@redhat.com>
2223 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
2224 null terminator of the underlying string as part of the test_range.
2225 (main): Call test03.
2227 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
2229 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
2230 requirement (LWG 3385).
2231 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
2232 expected declaration.
2234 * include/std/ranges (take_while_view, drop_view, drop_while_view)
2235 (elements_view:_Iterator): Initialize data members (LWG 3364).
2237 * libsupc++/compare (three_way_comparable): Remove always-false check
2238 that should have been removed with weak_equality (P1959R0).
2239 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
2241 * include/std/concepts (__detail::__partially_ordered_with): Move here
2243 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
2244 to simplify definition (LWG 3331).
2245 * libsupc++/compare (__detail::__partially_ordered_with): Move to
2248 * include/std/concepts (totally_ordered_with): Remove redundant
2249 requirement (LWG 3329).
2251 * include/std/ranges (__detail::__convertible_to_non_slicing): New
2253 (__detail::__pair_like_convertible_to): Remove.
2254 (__detail::__pair_like_convertible_from): Add requirements for
2255 non-slicing conversions.
2256 (subrange): Constrain constructors with __convertible_to_non_slicing.
2257 Remove constructors from pair-like types. Add new deduction guide.
2258 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
2260 * include/bits/iterator_concepts.h (iter_move): Add declaration to
2261 prevent unqualified lookup finding a suitable declaration (LWG 3247).
2263 * include/std/memory_resource (polymorphic_allocator::allocate)
2264 (polymorphic_allocator::allocate_object): Change type of exception to
2265 bad_array_new_length (LWG 3237).
2266 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
2268 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
2269 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
2270 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
2271 * testsuite/20_util/unwrap_reference/3.cc: New test.
2273 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
2274 type during overload resolution, use static assert instead (LWG 3200).
2275 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
2277 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
2279 * include/std/span (span(T (&)[N])): Use non-deduced context to
2280 prevent first parameter from interfering with class template argument
2281 deduction (LWG 3369).
2282 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
2283 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
2286 * include/std/span (span::const_iterator, span::const_reverse_iterator)
2287 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
2289 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
2291 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
2293 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
2294 constrained.cc: Likewise.
2295 * testsuite/20_util/specialized_algorithms/
2296 uninitialized_default_construct/constrained.cc: Likewise.
2297 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
2298 constrained.cc: Likewise.
2299 * testsuite/20_util/specialized_algorithms/uninitialized_move/
2300 constrained.cc: Likewise.
2301 * testsuite/20_util/specialized_algorithms/
2302 uninitialized_value_construct/constrained.cc: Likewise.
2304 * include/bits/range_access.h (range_size_t): Define alias template.
2305 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
2306 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
2308 * include/std/ranges (filter_view, transform_view, take_view)
2309 (join_view, split_view, reverse_view): Remove commented-out converting
2310 constructors (LWG 3280).
2312 * include/std/memory (uninitialized_construct_using_allocator): Use
2313 std::construct_at (LWG 3321).
2315 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
2316 (polymorphic_allocator::allocate_object)
2317 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
2319 LWG 3379. "safe" in several library names is misleading
2320 * include/bits/range_access.h (enable_safe_range): Rename to
2321 enable_borrowed_range.
2322 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
2323 (safe_range): Rename to borrowed_range.
2324 * include/bits/ranges_algo.h: Adjust to use new names.
2325 * include/bits/ranges_algobase.h: Likewise.
2326 * include/bits/ranges_uninitialized.h: Likewise.
2327 * include/std/ranges: Likewise.
2328 (safe_iterator_t): Rename to borrowed_iterator_t.
2329 (safe_subrange_t): Rename to borrowed_subrange_t.
2330 * include/std/span: Adjust to use new names.
2331 * include/std/string_view: Likewise.
2332 * include/experimental/string_view: Likewise.
2333 * testsuite/std/ranges/access/begin.cc: Likewise.
2334 * testsuite/std/ranges/access/cbegin.cc: Likewise.
2335 * testsuite/std/ranges/access/cdata.cc: Likewise.
2336 * testsuite/std/ranges/access/cend.cc: Likewise.
2337 * testsuite/std/ranges/access/crbegin.cc: Likewise.
2338 * testsuite/std/ranges/access/crend.cc: Likewise.
2339 * testsuite/std/ranges/access/data.cc: Likewise.
2340 * testsuite/std/ranges/access/end.cc: Likewise.
2341 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2342 * testsuite/std/ranges/access/rend.cc: Likewise.
2343 * testsuite/std/ranges/safe_range.cc: Likewise.
2344 * testsuite/std/ranges/safe_range_types.cc: Likewise.
2345 * testsuite/util/testsuite_iterators.h: Likewise.
2347 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
2348 (tuple_element<1, const subrange<I, S, K>>): Add partial
2349 specializations (LWG 3398).
2350 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
2352 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2353 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
2354 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
2356 2020-02-18 Patrick Palka <ppalka@redhat.com>
2358 P1983R0 Wording for GB301, US296, US292, US291, and US283
2359 * include/std/ranges (filter_view::pred): New member function.
2360 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
2361 P1983R0 fixes the highlighted issue in the same way.
2362 (join_view::_Iterator<_Const>): Add friend
2363 join_view::_Iterator<!_Const>.
2364 (join_view::_M_inner): Remove mutable specifier, effectively reverting
2365 the proposed wording changes of P3278.
2366 (join_view::begin): Refine the condition for when to return a const
2368 (split_view::_OuterIter::_OuterIter): Adjust constraints.
2369 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
2372 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
2375 * include/std/ranges (_RangeAdaptor): Add deduction guide.
2376 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
2378 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
2379 (transform_view::_Iterator): Add alias _Base_iter and use in place of
2381 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
2382 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
2383 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
2384 (split_view::_InnerIter::_S_iter_cat()): Likewise.
2386 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
2387 assumption that long is wider than int.
2388 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
2389 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
2390 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
2391 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
2393 P1976R2 Fixed-size span construction from dynamic range
2394 * include/std/span (__cpp_lib_span): Update value.
2395 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
2397 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
2399 (span::first<Count>(), span::last<Count>()): Use explicit type in
2401 (as_bytes, as_writable_bytes): Likewise.
2402 * include/std/version (__cpp_lib_span): Update value.
2403 * testsuite/23_containers/span/1.cc: Check new value.
2404 * testsuite/23_containers/span/2.cc: Check new value.
2405 * testsuite/23_containers/span/explicit.cc: New test.
2407 * include/std/span (span::__is_compatible_array): Simplify alias
2408 template by using requires-clause.
2409 (span::__is_compatible_ref): New alias template for constraining
2411 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
2412 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
2413 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
2414 redundant parentheses.
2415 (span(R&&)): Add missing constraints.
2417 * include/std/span (span): Reorder members and rename template
2418 parameters to match declarations in the C++2a working paper.
2420 P2116R0 Remove tuple-like protocol support from fixed-extent span
2421 * include/std/span (get, tuple_size, tuple_element): Remove.
2422 * testsuite/23_containers/span/everything.cc: Remove checks for
2424 * testsuite/23_containers/span/get_neg.cc: Remove.
2425 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
2426 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
2427 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
2429 2020-02-17 Patrick Palka <ppalka@redhat.com>
2431 P2106R0 Alternative wording for GB315 and GB316
2432 * include/bits/ranges_algo.h (in_fun_result): New.
2433 (for_each_result, for_each_n_result): Change into an alias of
2435 (in_in_result): New.
2436 (mismatch_result): Change into an alias of in_in_result.
2437 (copy_if_result): Change into an alias of in_out_result.
2438 (swap_ranges_result): Change into an alias of in_in_result.
2439 (unary_transform_result): Change into an alias of in_out_result.
2440 (in_in_out_result): New.
2441 (binary_transform_result): Change into an alias of in_in_out_result.
2442 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
2443 remove_copy_result, unique_copy_result, reverse_copy_result,
2444 rotate_copy_result, partial_sort_copy_result): Change into an alias of
2446 (in_out_out_result): New.
2447 (partition_copy_result, merge_result): Change into an alias of
2449 (set_union_result, set_intersection_result): Change into an alias of
2451 (set_difference_result): Change into an alias of in_out_result.
2452 (set_symmetric_difference): Change into an alias of in_in_out_result.
2453 (min_max_result): New.
2454 (minmax_result, minmax_element_result): Change into an alias of
2456 (in_found_result): New.
2457 (next_permutation_result, prev_permutation_result): Change into an alias
2459 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
2460 Adjust following changes to next_permutation_result and
2461 prev_permutation_result.
2462 * include/bits/ranges_algobase.h (in_out_result): New.
2463 (copy_result, move_result, move_backward_result, copy_backward_result,
2464 copy_n_result): Change into an alias of in_out_result.
2465 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
2466 uninitialized_copy_n_result, uninitialized_move_result,
2467 uninitialized_move_n_result): Likewise.
2468 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
2469 structured bindings.
2470 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
2472 P1243R4 Rangify new algorithms
2473 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
2474 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
2475 * testsuite/25_algorithms/clamp/constrained.cc: New test.
2476 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
2477 * testsuite/25_algorithms/sample/constrained.cc: New test.
2479 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
2481 P1964R2 Wording for boolean-testable
2482 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
2483 (__adjacent_find_fn): Cast result of predicate to bool.
2484 * include/std/concepts (__boolean): Remove.
2485 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
2486 new helper concepts.
2487 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
2488 (predicate): Use __boolean_testable instead of boolean.
2489 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
2492 P1970R2 Consistency for size() functions: Add ranges::ssize
2493 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
2494 * testsuite/std/ranges/access/ssize.cc: New test.
2496 P1956R1 On the names of low-level bit manipulation functions
2497 * include/bits/hashtable_policy.h: Update comment.
2498 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
2499 (ispow2, ceil2, floor2, log2p1): Likewise.
2500 (__cpp_lib_int_pow2): Add feature test macro.
2501 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
2502 * include/std/memory (assume_aligned): Adjust use of ispow2.
2503 * include/std/version (__cpp_lib_int_pow2): Add.
2504 * libsupc++/new_opa.cc: Adjust use of __ispow2.
2505 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
2506 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
2507 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
2508 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
2509 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
2510 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
2511 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
2512 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
2513 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
2514 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
2515 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
2516 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
2518 * include/std/charconv: Add comment.
2520 PR libstdc++/92546 (partial)
2521 * include/bits/random.h (uniform_random_bit_generator): Move definition
2522 to <bits/uniform_int_dist.h>.
2523 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
2525 * include/bits/ranges_algobase.h: Do not include <cmath>.
2526 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
2528 * include/std/ranges: Do not include <limits>.
2529 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2531 PR libstdc++/92546 (partial)
2532 * include/Makefile.am: Add new header.
2533 * include/Makefile.in: Regenerate.
2534 * include/bits/int_limits.h: New header.
2535 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
2536 numeric_limits with __detail::__int_limits.
2537 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2538 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
2540 * include/std/charconv (__to_chars_8, __from_chars_binary)
2541 (__from_chars_alpha_to_num, from_chars): Likewise.
2542 * include/std/memory_resource (polymorphic_allocator::allocate)
2543 (polymorphic_allocator::allocate_object): Likewise.
2544 * include/std/string_view (basic_string_view::_S_compare): Likewise.
2545 * include/std/utility (in_range): Likewise.
2546 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
2547 extra error about incomplete type __int_limits<bool>.
2548 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
2549 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
2550 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
2551 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
2552 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
2553 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
2554 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
2555 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
2556 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
2557 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
2558 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
2559 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
2561 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
2562 value for partial_ordering::unordered.
2564 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
2565 const-qualified expression variations.
2566 * include/std/concepts (copyable): Likewise.
2568 * include/std/type_traits (__is_standard_integer): New helper trait.
2569 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
2570 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
2571 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
2572 * testsuite/20_util/integer_comparisons/1.cc: New test.
2573 * testsuite/20_util/integer_comparisons/2.cc: New test.
2574 * testsuite/20_util/integer_comparisons/equal.cc: New test.
2575 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
2576 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
2577 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
2578 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
2579 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
2580 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
2581 * testsuite/20_util/integer_comparisons/less.cc: New test.
2582 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
2583 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
2584 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
2585 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
2586 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
2588 2020-02-16 Patrick Palka <ppalka@redhat.com>
2590 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
2591 Move code after an early exit constexpr if to under an else branch.
2592 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
2594 2020-02-15 Patrick Palka <ppalka@redhat.com>
2596 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
2597 * include/bits/ranges_algobase.h: Likewise.
2598 * include/bits/ranges_uninitialized.h: Likewise.
2600 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
2601 binary_search, copy_if, count, count_if, equal_range, find, find_end,
2602 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
2603 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
2604 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
2605 lower_bound, make_heap, max, max_element, merge, min, min_element,
2606 minmax, minmax_element, mismatch, next_permutation, none_of,
2607 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
2608 partition_point, pop_heap, prev_permutation, push_heap, remove,
2609 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
2610 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
2611 search, search_n, set_difference, set_intersection,
2612 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
2613 stable_partition, stable_sort, swap_ranges, transform, unique,
2614 unique_copy, upper_bound): Convert into function objects.
2615 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
2616 fill, move_backward, copy_backward): Likewise.
2617 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
2618 uninitialized_default_construct_n, uninitialized_value_construct,
2619 uninitialized_value_construct_n, uninitialized_copy,
2620 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
2621 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
2622 destroy, destroy_n): Likewise.
2624 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
2625 (ranges::find_end): ... here.
2626 (ranges::__lexicographical_compare): Fold into ...
2627 (ranges::lexicographical_compare): ... here.
2628 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
2629 (ranges::equal): ... here.
2631 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2633 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
2634 * include/std/deque: Likewise.
2635 * include/std/forward_list: Likewise.
2636 * include/std/list: Likewise.
2637 * include/std/string: Likewise.
2638 * include/std/vector: Likewise.
2639 * include/std/version: Likewise.
2640 * testsuite/23_containers/deque/erasure.cc: Test for new value.
2641 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
2642 * testsuite/23_containers/list/erasure.cc: Likewise.
2643 * testsuite/23_containers/map/erasure.cc: Likewise.
2644 * testsuite/23_containers/set/erasure.cc: Likewise.
2645 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
2646 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
2647 * testsuite/23_containers/vector/erasure.cc: Likewise.
2649 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
2651 * include/bits/random.h (uniform_random_bit_generator): Require min()
2652 and max() to be constant expressions and min() to be less than max().
2653 * testsuite/26_numerics/random/concept.cc: Check additional cases.
2654 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
2656 2020-02-13 Patrick Palka <ppalka@redhat.com>
2658 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
2659 * include/Makefile.in: Regenerate.
2660 * include/bits/ranges_uninitialized.h: New header.
2661 * include/std/memory: Include it.
2662 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
2664 * .../uninitialized_copy/constrained.cc: New test.
2665 * .../uninitialized_default_construct/constrained.cc: New test.
2666 * .../uninitialized_fill/constrained.cc: New test.
2667 * .../uninitialized_move/constrained.cc: New test.
2668 * .../uninitialized_value_construct/constrained.cc: New test.
2670 * include/Makefile.am: Add bits/ranges_algobase.h
2671 * include/Makefile.in: Regenerate.
2672 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
2674 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
2675 __detail::__is_move_iterator, copy_result, move_result,
2676 __equal, equal, copy_result, move_result, move_backward_result,
2677 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
2678 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
2679 fill): Split out into ...
2680 * bits/range_algobase.h: ... this new header.
2682 2020-02-12 Patrick Palka <ppalka@redhat.com>
2684 LWG 3389 and LWG 3390
2685 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
2686 constructing the move_iterator with __i.
2687 (counted_iterator::counted_iterator): Use std::move when initializing
2689 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
2690 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
2692 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
2697 * configure: Regenerated.
2699 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
2701 * include/bits/hashtable.h
2702 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
2703 missing std namespace qualification to forward call.
2705 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
2707 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
2709 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
2711 * include/std/ranges: Fix non-ASCII characters in comment.
2713 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
2714 equality comparison to be valid and return bool.
2715 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
2716 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
2717 type with ambiguous conversion to fundamental types.
2718 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
2720 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2722 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
2724 (readable_traits): Rename to indirectly_readable_traits.
2725 (readable): Rename to indirectly_readable.
2726 (writable): Rename to indirectly_writable.
2727 (__detail::__iter_exchange_move): Do not use remove_reference_t.
2728 (indirectly_swappable): Adjust requires expression parameter types.
2730 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
2731 (ranges::replace_if, ranges::generate_n, ranges::generate)
2732 (ranges::remove): Use new name for writable.
2733 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
2734 Use new name for readable.
2735 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
2736 new name for readable_traits.
2737 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
2738 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
2739 new definition of indirectly_readable.
2741 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
2742 to take parameters of common_iterator, instead of the common_iterator
2743 type itself. Fix argument for __common_iter_has_arrow constraint.
2744 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
2746 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2748 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
2750 (basic_istream_view::_Iterator::operator++()): Add missing return.
2752 2020-02-07 Patrick Palka <ppalka@redhat.com>
2754 * include/bits/ranges_algo.h: Remove extraneous &&.
2756 * include/std/ranges (ranges::__detail::__stream_extractable,
2757 ranges::basic_istream_view, ranges::istream_view): Define.
2758 * testsuite/std/ranges/istream_view: New test.
2760 Implement C++20 range adaptors
2761 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
2762 (subrange::_S_store_size): Mark as const instead of constexpr to
2763 avoid what seems to be a bug in GCC.
2764 (__detail::__box): Give it defaulted copy and move constructors.
2765 (ranges::views::_Single::operator()): Mark constexpr.
2766 (ranges::views::_Iota::operator()): Mark constexpr.
2767 (__detail::Empty): Define.
2768 (ranges::views::__closure::_RangeAdaptor,
2769 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
2770 ranges::views::all, ranges::__detail::find_if,
2771 ranges::__detail::find_if_not, ranges::__detail::mismatch,
2772 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
2773 ranges::views::transform, take_view, ranges::views::take,
2774 take_while_view, ranges::views::take_while, drop_view,
2775 ranges::views::drop, join_view, ranges::views::join,
2776 __detail::require_constant, __detail::tiny_range, split_view,
2777 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
2778 common_view, ranges::views::common, reverse_view,
2779 ranges::views::reverse,
2780 ranges::views::__detail::__is_reversible_subrange,
2781 ranges::views::__detail::__is_reverse_view, reverse_view,
2782 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
2783 ranges::views::elements, ranges::views::keys, ranges::views::values):
2785 (views): Alias for ranges::views.
2786 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
2787 tuple_element<1, ranges::subrange>): New partial specializations.
2788 * testsuite/std/ranges/adaptors/all.cc: New test.
2789 * testsuite/std/ranges/adaptors/common.cc: Likewise.
2790 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
2791 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
2792 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
2793 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
2794 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
2795 * testsuite/std/ranges/adaptors/join.cc: Likewise.
2796 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
2797 * testsuite/std/ranges/adaptors/split.cc: Likewise.
2798 * testsuite/std/ranges/adaptors/take.cc: Likewise.
2799 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
2800 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
2802 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
2804 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
2805 type of enumerations and comparison category types.
2806 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
2807 (__cmp_cat::_Ncmp::unordered): Change value to 2.
2808 (partial_ordering::_M_value, weak_ordering::_M_value)
2809 (strong_ordering::_M_value): Change type to __cmp_cat::type.
2810 (partial_ordering::_M_is_ordered): Remove data member.
2811 (partial_ordering): Use second bit of _M_value for unordered. Adjust
2812 comparison operators.
2813 (weak_ordering::operator partial_ordering): Simplify to remove
2815 (operator<=>(unspecified, weak_ordering)): Likewise.
2816 (strong_ordering::operator partial_ordering): Likewise.
2817 (strong_ordering::operator weak_ordering): Likewise.
2818 (operator<=>(unspecified, strong_ordering)): Likewise.
2819 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
2820 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
2821 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
2823 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
2824 __cpp_lib_three_way_comparison macro and use deduced return type for
2826 * testsuite/std/ranges/iota/iterator.cc: New test.
2828 2020-02-07 Patrick Palka <ppalka@redhat.com>
2829 Jonathan Wakely <jwakely@redhat.com>
2831 Implement C++20 constrained algorithms
2832 * include/Makefile.am: Add new header.
2833 * include/Makefile.in: Regenerate.
2834 * include/std/algorithm: Include <bits/ranges_algo.h>.
2835 * include/bits/ranges_algo.h: New file.
2836 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
2837 * testsuite/25_algorithms/all_of/constrained.cc: New test.
2838 * testsuite/25_algorithms/any_of/constrained.cc: New test.
2839 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
2840 * testsuite/25_algorithms/copy/constrained.cc: New test.
2841 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
2842 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
2843 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
2844 * testsuite/25_algorithms/count/constrained.cc: New test.
2845 * testsuite/25_algorithms/count_if/constrained.cc: New test.
2846 * testsuite/25_algorithms/equal/constrained.cc: New test.
2847 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
2848 * testsuite/25_algorithms/fill/constrained.cc: New test.
2849 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
2850 * testsuite/25_algorithms/find/constrained.cc: New test.
2851 * testsuite/25_algorithms/find_end/constrained.cc: New test.
2852 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
2853 * testsuite/25_algorithms/find_if/constrained.cc: New test.
2854 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
2855 * testsuite/25_algorithms/for_each/constrained.cc: New test.
2856 * testsuite/25_algorithms/generate/constrained.cc: New test.
2857 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
2858 * testsuite/25_algorithms/heap/constrained.cc: New test.
2859 * testsuite/25_algorithms/includes/constrained.cc: New test.
2860 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
2861 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
2862 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
2863 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
2864 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
2865 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
2867 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
2868 * testsuite/25_algorithms/max/constrained.cc: New test.
2869 * testsuite/25_algorithms/max_element/constrained.cc: New test.
2870 * testsuite/25_algorithms/merge/constrained.cc: New test.
2871 * testsuite/25_algorithms/min/constrained.cc: New test.
2872 * testsuite/25_algorithms/min_element/constrained.cc: New test.
2873 * testsuite/25_algorithms/minmax/constrained.cc: New test.
2874 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
2875 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
2876 * testsuite/25_algorithms/move/constrained.cc: New test.
2877 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
2878 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
2879 * testsuite/25_algorithms/none_of/constrained.cc: New test.
2880 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
2881 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
2882 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
2883 * testsuite/25_algorithms/partition/constrained.cc: New test.
2884 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
2885 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
2886 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
2887 * testsuite/25_algorithms/remove/constrained.cc: New test.
2888 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
2889 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
2890 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
2891 * testsuite/25_algorithms/replace/constrained.cc: New test.
2892 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
2893 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
2894 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
2895 * testsuite/25_algorithms/reverse/constrained.cc: New test.
2896 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
2897 * testsuite/25_algorithms/rotate/constrained.cc: New test.
2898 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
2899 * testsuite/25_algorithms/search/constrained.cc: New test.
2900 * testsuite/25_algorithms/search_n/constrained.cc: New test.
2901 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
2902 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2903 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2905 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2906 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2907 * testsuite/25_algorithms/sort/constrained.cc: New test.
2908 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2909 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2910 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2911 * testsuite/25_algorithms/transform/constrained.cc: New test.
2912 * testsuite/25_algorithms/unique/constrained.cc: New test.
2913 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2914 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2916 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2918 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
2919 number in comment. Fix indentation.
2921 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
2922 redundant _GLIBCXX20_CONSTEXPR.
2924 * include/std/ranges (viewable_range): Replace decay_t with
2925 remove_cvref_t (LWG 3375).
2927 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
2929 * include/bits/iterator_concepts.h (iter_reference_t)
2930 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
2931 Remove workarounds for PR c++/67704.
2932 * testsuite/24_iterators/aliases.cc: New test.
2934 2020-02-05 Patrick Palka <ppalka@redhat.com>
2936 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
2937 when initializing _M_current.
2938 (move_iterator::base): Split into two overloads differing in
2939 ref-qualifiers as in P1207R4 for C++20.
2941 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
2943 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
2947 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
2948 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
2949 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
2951 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
2953 * configure: Regenerate.
2955 2020-01-31 Patrick Palka <ppalka@redhat.com>
2957 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
2958 test_range::end() returns the same type as test_range::begin().
2959 * testsuite/24_iterators/range_operations/next.cc: Likewise.
2960 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
2961 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
2962 Always return a sentinel<I>.
2964 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
2967 * include/std/stop_token (stop_token::stop_possible()): Call new
2968 _M_stop_possible() function.
2969 (stop_token::stop_requested()): Do not use stop_possible().
2970 (stop_token::binary_semaphore): New class, as temporary stand-in for
2971 std::binary_semaphore.
2972 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
2973 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
2974 New data members for symchronization with stop_callback destruction.
2975 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
2976 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
2978 (stop_token::_Stop_cb::_M_run): New member function.
2979 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
2981 (stop_token::_Stop_state::_M_owners): New data member to track
2982 reference count for ownership.
2983 (stop_token::_Stop_state::_M_value): New data member combining a
2984 spinlock, the stop requested flag, and the reference count for
2985 associated stop_source objects.
2986 (stop_token::_Stop_state::_M_requester): New data member for
2987 synchronization with stop_callback destruction.
2988 (stop_token::_Stop_state::_M_stop_possible()): New member function.
2989 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
2991 (stop_token::_Stop_state::_M_add_owner)
2992 (stop_token::_Stop_state::_M_release_ownership)
2993 (stop_token::_Stop_state::_M_add_ssrc)
2994 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
2995 updating reference counts.
2996 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2997 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2998 (stop_token::_Stop_state::_M_try_lock)
2999 (stop_token::_Stop_state::_M_try_lock_and_stop)
3000 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
3002 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
3003 read and update state. Release lock while running callbacks. Use new
3004 data members to synchronize with callback destruction.
3005 (stop_token::_Stop_state::_M_remove_callback): Likewise.
3006 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
3007 to read and update state.
3008 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
3009 replacing shared_ptr.
3010 (stop_source::stop_source(const stop_source&)): Update reference count.
3011 (stop_source::operator=(const stop_source&)): Likewise.
3012 (stop_source::~stop_source()): Likewise.
3013 (stop_source::stop_source(stop_source&&)): Define as defaulted.
3014 (stop_source::operator=(stop_source&&)): Establish postcondition on
3016 (stop_callback): Enforce preconditions on template parameter. Replace
3017 base class with data member of new _Cb_impl type.
3018 (stop_callback::stop_callback(const stop_token&, Cb&&))
3019 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
3020 (stop_callback::_Cb_impl): New type wrapping _Callback member and
3021 defining the _S_execute member function.
3022 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
3024 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
3025 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
3026 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
3028 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
3030 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
3031 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
3032 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
3035 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
3036 three_way_comparable_with.
3037 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
3038 (compare_three_way::operator()): Remove redundant constraint from
3040 (__detail::_Synth3way::operator()): Use three_way_comparable_with
3041 instead of workaround.
3042 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
3043 output due to simplified constraints on compare_three_way::operator().
3046 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
3047 * testsuite/18_support/comparisons/object/93479.cc: New test.
3049 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
3050 returns the same type as test_range::begin(). Add comments.
3051 * testsuite/std/ranges/access/rbegin.cc: Likewise.
3052 * testsuite/std/ranges/access/rend.cc: Likewise.
3053 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
3054 test_range is the same as its iterator type.
3055 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
3056 operator- overloads to satisfy sized_sentinel_for when the iterator
3057 satisfies random_access_iterator.
3059 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
3062 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
3063 static assertion to object types.
3066 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
3067 clock_gettime instead of explicit glibc version check.
3068 * configure: Regenerate.
3070 2020-01-28 Martin Liska <mliska@suse.cz>
3073 * include/std/atomic: Fix typo.
3074 * include/std/optional: Likewise.
3076 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
3078 * configure: Regenerate.
3080 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
3083 * include/std/span (span): Fix deduction guide.
3084 * testsuite/23_containers/span/deduction.cc: New test.
3086 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
3088 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
3089 (__cmp_cat::_Ord::equivalent): Add enumerator.
3090 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
3092 (partial_ordering, weak_ordering, strong_ordering): Remove
3093 constructors taking __cmp_cat::_Eq parameters. Use renamed
3096 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
3098 * acinclude.m4: Handle `--with-toolexeclibdir='.
3099 * Makefile.in: Regenerate.
3100 * aclocal.m4: Regenerate.
3101 * configure: Regenerate.
3102 * doc/Makefile.in: Regenerate.
3103 * include/Makefile.in: Regenerate.
3104 * libsupc++/Makefile.in: Regenerate.
3105 * po/Makefile.in: Regenerate.
3106 * python/Makefile.in: Regenerate.
3107 * src/Makefile.in: Regenerate.
3108 * src/c++11/Makefile.in: Regenerate.
3109 * src/c++17/Makefile.in: Regenerate.
3110 * src/c++98/Makefile.in: Regenerate.
3111 * src/filesystem/Makefile.in: Regenerate.
3112 * testsuite/Makefile.in: Regenerate.
3114 2020-01-23 Alexandre Oliva <oliva@adacore.com>
3116 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
3117 * configure: Rebuild.
3119 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
3121 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
3124 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
3126 * include/Makefile.in: Regenerate.
3128 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
3130 * doc/xml/faq.xml: Fix grammar.
3131 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
3132 * doc/xml/manual/spine.xml: Update copyright years.
3133 * doc/html/*: Regenerate.
3135 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
3137 * doc/xml/faq.xml: Update for SVN -> Git transition.
3138 * doc/xml/manual/appendix_contributing.xml: Likewise.
3139 * doc/xml/manual/status_cxx1998.xml: Likewise.
3140 * doc/xml/manual/status_cxx2011.xml: Likewise.
3141 * doc/xml/manual/status_cxx2014.xml: Likewise.
3142 * doc/xml/manual/status_cxx2017.xml: Likewise.
3143 * doc/xml/manual/status_cxx2020.xml: Likewise.
3144 * doc/xml/manual/status_cxxtr1.xml: Likewise.
3145 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
3147 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
3149 * include/Makefile.am: Add coroutine to the std set.
3150 * include/Makefile.in: Regenerated.
3151 * include/std/coroutine: New file.
3153 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
3156 * include/bits/c++config: Only do PSTL config when the header is
3157 present, to fix freestanding.
3158 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
3159 functions if they were detected by configure.
3161 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
3162 Matthew Bauer <mjbauer95@gmail.com>
3163 Jonathan Wakely <jwakely@redhat.com>
3165 PR bootstrap/64271 (partial)
3166 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
3168 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
3169 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
3170 definitions with NetBSD upstream.
3171 (ctype_base::blank): Use _CTYPE_BL.
3172 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
3174 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
3175 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
3176 parameters to unsigned char.
3177 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
3179 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
3182 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
3183 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
3184 (_Equality_base): Remove.
3185 (_Equality<>::_M_equal): Review implementation. Use
3186 std::is_permutation.
3187 * testsuite/23_containers/unordered_multiset/operators/1.cc
3188 (Hash, Equal, test02, test03): New.
3189 * testsuite/23_containers/unordered_set/operators/1.cc
3190 (Hash, Equal, test02, test03): New.
3192 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
3195 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
3196 Move here from <bits/range_access.h> and define using __int128 when
3198 (__is_integer_like, __is_signed_integer_like): Move here from
3199 <bits/range_access.h>.
3200 (weakly_incrementable): Use __is_signed_integer_like.
3201 * include/bits/range_access.h (__max_diff_type, __max_size_type)
3202 (__is_integer_like, __is_signed_integer_like): Move to
3203 <bits/iterator_concepts.h>.
3204 (__make_unsigned_like_t): Move here from <ranges>.
3205 * include/std/ranges (__make_unsigned_like_t): Move to
3206 <bits/range_access.h>.
3207 (iota_view): Replace using-directive with using-declarations.
3208 * testsuite/std/ranges/iota/93267.cc: New test.
3209 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
3211 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
3214 * include/bits/fs_path.h (path::generic_string<C,A>)
3215 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
3216 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
3217 root-dir is converted to forward slash in generic pathname.
3218 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
3219 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
3222 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
3224 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
3225 (__atomic_float): Add default member initializer for C++20.
3226 * include/std/atomic (atomic): Likewise.
3227 (atomic::atomic()): Remove noexcept-specifier on default constructor.
3228 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
3229 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
3231 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
3232 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
3233 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
3234 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
3235 expected result for is_trivially_default_constructible.
3236 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
3237 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
3238 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
3239 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
3240 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
3241 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
3242 expected results for is_trivially_default_constructible.
3243 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
3246 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
3248 * testsuite/util/testsuite_iterators.h: Improve comment.
3250 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
3251 initialization syntax.
3254 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
3255 of base class independent of __cplusplus value.
3256 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
3257 type defined in the base class
3258 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
3259 * testsuite/24_iterators/istreambuf_iterator/requirements/
3260 base_classes.cc: Adjust expected base class for C++98.
3262 2020-01-09 Olivier Hainque <hainque@adacore.com>
3264 * doc/xml/manual/appendix_contributing.xml: Document _C2
3265 as a reserved identifier, by VxWorks.
3266 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
3267 * include/bits/stl_multimap.h: Likewise.
3269 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
3271 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
3272 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
3273 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
3274 partial specialization to disambiguate the two constrained
3277 * include/experimental/type_traits (experimental::is_pod_v): Disable
3278 -Wdeprecated-declarations warnings around reference to std::is_pod.
3279 * include/std/type_traits (is_pod_v): Likewise.
3280 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
3281 is_standard_layout and is_trivial. Do not check is_pod for C++20.
3282 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
3283 Add -Wno-deprecated for C++20.
3284 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
3285 * testsuite/20_util/is_pod/value.cc: Likewise.
3286 * testsuite/experimental/type_traits/value.cc: Likewise.
3288 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
3290 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
3291 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
3292 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
3294 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
3297 * include/bits/random.h (operator>>): Check stream operation succeeds.
3298 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
3300 (operator>>): Remove redundant __istream_type typedefs. Check stream
3302 (__extract_params): New function to fill a vector from a stream.
3303 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
3306 * config/abi/pre/gnu.ver: Add new exports.
3307 * include/std/memory_resource (memory_resource::~memory_resource()):
3308 Do not define inline.
3309 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
3310 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
3312 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
3313 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
3315 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
3318 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
3320 (_Hashtable<>::__fwd_value_for): New.
3321 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
3323 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
3324 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
3325 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
3327 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
3328 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
3330 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
3332 * testsuite/23_containers/unordered_set/92124.cc: New.
3334 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
3337 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
3338 detailed error reporting for remove_all. Check result of recursive
3339 call before incrementing iterator.
3340 (remove_all(const path&), remove_all(const path&, error_code&)): Use
3342 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
3343 result of recursive call before incrementing iterator.
3344 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
3345 are reported correctly.
3346 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
3348 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
3350 * include/std/condition_variable
3351 (condition_variable_any::wait_on): Rename to match current draft
3353 (condition_variable_any::wait_on_until): Likewise.
3354 (condition_variable_any::wait_on_for): Likewise.
3355 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
3356 Adjust tests to account for renamed methods.
3358 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
3361 * include/bits/stl_tree.h
3362 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
3363 std::move_if_noexcept by std::move.
3364 * testsuite/23_containers/map/92124.cc: New.
3365 * testsuite/23_containers/set/92124.cc: New.
3367 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
3369 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
3370 (stop_source): Likewise (LWG 3362).
3371 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
3374 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
3375 (lexicographical_compare_three_way): Do not depend on
3377 * include/std/version (__cpp_lib_three_way_comparison): Only define
3378 when __cpp_lib_concepts is defined.
3379 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3381 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
3383 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3384 Only define four-argument overload when __cpp_lib_concepts is defined.
3386 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
3388 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
3390 2020-01-01 Jakub Jelinek <jakub@redhat.com>
3392 Update copyright years.
3394 Copyright (C) 2020 Free Software Foundation, Inc.
3396 Copying and distribution of this file, with or without modification,
3397 are permitted in any medium without royalty provided the copyright
3398 notice and this notice are preserved.