1 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
3 * include/experimental/executor (service_already_exists): Make default
4 constructor public (LWG 3414).
5 * testsuite/experimental/net/execution_context/make_service.cc: Check
6 the service_already_exists can be default constructed.
8 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
9 Jonathan Wakely <jwakely@redhat.com>
13 * include/std/any (any): Rename template parameters for consistency
15 (any::_Decay): Rename to _Decay_if_not_any.
16 (any::any(T&&):: Remove is_constructible from constraints. Remove
17 non-standard overload.
18 (any::any(in_place_type_t<T>, Args&&...))
19 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
20 (any::emplace(Args&&...))
21 (any::emplace(initializer_list<U>, Args&&...)):
22 Use decay_t instead of _Decay.
23 * testsuite/20_util/any/cons/90415.cc: New test.
24 * testsuite/20_util/any/cons/92156.cc: New Test.
25 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
27 * testsuite/20_util/any/modifiers/92156.cc: New test.
29 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
31 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
32 * doc/html/*: Regenerate.
34 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
35 value for C++17 to 201803L because P0858R0 is supported for C++17.
36 * include/std/version (__cpp_lib_array_constexpr): Likewise.
37 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
38 Check for value corresponding to P0031R0 features being tested.
39 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
40 Check for value corresponding to P0858R0 features being tested.
42 * include/std/version (__cpp_lib_three_way_comparison): Define for
45 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
47 * include/experimental/net/executor (system_context): Mark
48 system_context::system_context() = delete.
49 * testsuite/experimental/net/executor/1.cc: Add new
50 test to check system_context is not default constructible.
52 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
54 * include/std/coroutine: Update the inline namespace to __n4861.
55 Add the __cpp_lib_coroutine define, set to 201902L.
56 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
58 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
60 * include/std/execution (__cpp_lib_execution): Define to indicate
61 support for P0024R2 and P1001R2.
62 * include/std/version (__cpp_lib_execution): Define.
63 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
64 defined by <algorithm>, move other tests to new tests ...
65 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
66 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
67 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
68 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
70 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
71 different values for C++17 and C++20, to indicate different feature
72 sets. Update value for C++20 to indicate P1032R1 support.
73 * include/std/version (__cpp_lib_array_constexpr): Likewise.
74 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
75 Check feature test macro.
76 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
78 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
80 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
81 in C++17 mode and check feature test macro.
83 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
85 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
88 * include/std/functional (__cpp_lib_concepts): Update macro value to
89 indicate P1964R2 support.
90 * include/std/version (__cpp_lib_concepts): Likewise.
91 * testsuite/std/concepts/1.cc: Adjust expected value.
92 * testsuite/std/concepts/2.cc: Likewise.
94 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
95 __cpp_lib_constexpr_functional.
96 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
97 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
99 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
100 indicate P1006R1 support.
101 (__cpp_lib_to_address): Define to indicate P0653R2 support.
102 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
104 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
106 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
108 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
110 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
111 Define to indicate P0339R6 support.
112 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
113 indicate P0457R2 support.
114 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
115 to indicate P0758R1 support.
116 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
117 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
118 * include/std/version (__cpp_lib_atomic_float)
119 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
120 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
121 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
122 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
123 (__cpp_lib_to_address): Define.
124 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
126 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
128 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
130 * include/std/version (__cpp_lib_map_insertion)
131 (__cpp_lib_unordered_map_insertion): Remove.
133 * include/std/condition_variable (__cpp_lib_jthread): Remove
134 redundant definition.
135 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
136 indicate P1869R1 support.
137 * include/std/version (__cpp_lib_jthread): Update value.
138 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
139 for updated macro value.
140 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
142 * testsuite/30_threads/jthread/1.cc: Likewise.
143 * testsuite/30_threads/jthread/2.cc: Likewise.
144 * testsuite/30_threads/stop_token/1.cc: Likewise.
145 * testsuite/30_threads/stop_token/2.cc: Likewise.
147 * testsuite/21_strings/basic_string/erasure.cc: Check for
148 __cpp_lib_erase_if macro.
149 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
151 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
152 * testsuite/23_containers/list/erasure.cc: Likewise.
153 * testsuite/23_containers/map/erasure.cc: Likewise.
154 * testsuite/23_containers/set/erasure.cc: Likewise.
155 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
156 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
157 * testsuite/23_containers/vector/erasure.cc: Likewise.
159 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
161 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
162 to define operator<=>.
163 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
165 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
166 * doc/Makefile.in: Regenerate.
167 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
169 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
170 to the C++11 status table.
171 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
172 proposals with table matching contents of the C++14 standard.
173 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
175 * doc/html/*: Regenerate.
178 * include/std/type_traits (__is_nt_constructible_impl): Add partial
179 specializations for bounded arrays with non-empty initializers.
180 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
182 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
184 * testsuite/lib/libstdc++.exp: Add additional_flags=
185 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
186 compiling with a newer Thread Building Blocks.
188 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
190 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
192 * testsuite/20_util/is_constructible/51185.cc: Make test class a
193 non-aggregate so that the test verifies the same thing in all -std
195 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
196 results for some types when paren-init for aggregates is supported.
198 * include/std/version (__cpp_lib_three_way_comparison): Update value.
199 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
200 (__detail::__synth3way): Add noexcept-specifier.
202 * include/bits/stl_map.h (map): Define operator<=> and remove
204 * include/bits/stl_multimap.h (multimap): Likewise.
205 * include/bits/stl_multiset.h (multiset): Likewise.
206 * include/bits/stl_set.h (set): Likewise.
207 * include/bits/stl_tree.h (_Rb_tree): Likewise.
208 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
209 operator!= for C++20.
210 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
211 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
212 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
213 * include/debug/set.h (__gnu_debug::set): Likewise.
214 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
215 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
216 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
217 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
219 2020-04-20 Matthias Kretz <kretz@kde.org>
221 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
223 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
225 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
226 * include/bits/stl_stack.h (stack): Likewise.
227 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
228 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
230 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
231 Remove redundant operator!= for C++20.
232 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
234 * include/debug/unordered_map (unordered_map, unordered_multimap):
236 * include/debug/unordered_set (unordered_set, unordered_multiset):
240 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
241 redundant assignment in constructor.
243 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
245 * include/std/chrono (duration, time_point): Define operator<=> and
246 remove redundant operator!= for C++20.
247 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
249 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
252 * testsuite/util/native_type/native_priority_queue.hpp: Use
253 allocator_traits to rebind allocator.
255 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
257 * include/bits/forward_list.h (forward_list): Define operator<=> and
258 remove redundant comparison operators for C++20.
259 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
260 * include/bits/stl_deque.h (deque): Likewise.
261 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
262 * include/bits/stl_list.h (list): Likewise.
263 * include/bits/stl_vector.h (vector): Likewise.
264 * include/debug/deque (__gnu_debug::deque): Likewise.
265 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
266 * include/debug/list (__gnu_debug::list): Likewise.
267 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
269 * include/debug/vector (__gnu_debug::vector): Likewise.
270 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
271 operator<=> for C++20.
272 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
273 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
274 * testsuite/23_containers/list/cmp_c++20.cc: New test.
275 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
276 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
278 * include/bits/basic_string.h (basic_string): Define operator<=> and
279 remove redundant comparison operators for C++20.
280 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
281 Add comparison_category members.
282 (__detail::__char_traits_cmp_cat): New helper to get comparison
283 category from char traits class.
284 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
286 (sub_match): Define operator<=> and remove redundant comparison
288 (match_results): Remove redundant operator!= for C++20.
289 * include/std/string_view (basic_string_view): Define operator<=> and
290 remove redundant comparison operators for C++20.
291 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
293 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
295 * testsuite/21_strings/basic_string_view/operations/copy/char/
296 constexpr.cc: Initialize variable.
297 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
298 constexpr.cc: Likewise.
299 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
300 dg-do directive and remove comments showing incorrect signatures.
301 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
303 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
305 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
307 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
309 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
311 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
312 name of unused parameter.
314 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
316 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
317 (directory_entry): Define operator<=> and remove redundant comparison
319 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
320 * include/bits/fs_path.h (path): Define operator<=> and remove
321 redundant comparison operators for C++20.
322 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
323 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
324 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
325 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
327 * include/bits/allocator.h (operator!=): Do not define for C++20.
328 * include/bits/locale_classes.h (operator!=): Likewise.
329 * include/bits/std_function.h (operator==(nullptr_t, const function&))
330 (operator!=(const function&, nullptr_t))
331 (operator!=(nullptr_t, const function&)): Likewise.
332 * include/ext/bitmap_allocator.h (operator!=): Likewise.
333 * include/ext/debug_allocator.h (operator!=): Likewise.
334 * include/ext/extptr_allocator.h (operator!=): Likewise.
335 * include/ext/malloc_allocator.h (operator!=): Likewise.
336 * include/ext/mt_allocator.h (operator!=): Likewise.
337 * include/ext/new_allocator.h (operator!=): Likewise.
338 * include/ext/pool_allocator.h (operator!=): Likewise.
339 * include/ext/throw_allocator.h (operator!=): Likewise.
340 * include/std/bitset (bitset::operator!=): Likewise.
341 * include/std/memory_resource (operator!=): Likewise.
342 * include/std/scoped_allocator (operator!=): Likewise.
344 * include/std/typeindex (operator<=>): Define for C++20.
345 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
347 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
349 * libsupc++/compare (compare_three_way): Fix constraint so that
350 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
351 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
355 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
356 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
357 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
358 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
359 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
360 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
364 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
365 * testsuite/18_support/comparisons/categories/94565.cc: New test.
367 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
369 * include/std/coroutine: Update coroutines builtin define,
372 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
374 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
375 (strong_order, weak_order, partial_order): Replace uses of <=> with
376 compare_three_way function object (LWG 3324).
377 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
378 equality operator so that X satisfies three_way_comparable.
379 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
381 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
383 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
384 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
385 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
386 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
387 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
389 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
391 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
393 * include/std/complex (operator==(const T&, const complex<T>&))
394 (operator!=(const complex<T>&, const complex<T>&))
395 (operator!=(const complex<T>&, const T&))
396 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
397 * testsuite/26_numerics/slice/compare.cc: New test.
399 * include/std/charconv (to_chars_result, from_chars_result): Add
400 defaulted equality comparisons for C++20.
401 * testsuite/20_util/from_chars/compare.cc: New test.
402 * testsuite/20_util/to_chars/compare.cc: New test.
404 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
407 * include/std/charconv (__integer_to_chars_result_type)
408 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
410 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
411 use of std::string_view with std::string.
412 * testsuite/20_util/from_chars/2.cc: Likewise.
413 * testsuite/20_util/to_chars/1.cc: Likewise.
414 * testsuite/20_util/to_chars/2.cc: Likewise.
416 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
419 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
420 usable in constant expressions for C++20.
421 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
422 _GLIBCXX20_CONSTEXPR.
423 (std::char_traits<char>, std::char_traits<wchar_t>)
424 (std::char_traits<char8_t>): Make move, copy and assign usable in
425 constant expressions for C++20.
426 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
427 and copy usable in constant expressions for C++20.
428 * include/std/string_view (basic_string_view::copy): Add
429 _GLIBCXX20_CONSTEXPR.
430 * testsuite/21_strings/basic_string_view/operations/copy/char/
431 constexpr.cc: New test.
432 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
433 constexpr.cc: New test.
435 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
437 * doc/xml/manual/appendix_contributing.xml: Refer to Git
438 documentation instead of Subversion. Switch to https.
439 * doc/html/manual/appendix_contributing.html: Regenerate.
441 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
444 * include/bits/ptr_traits.h (__to_address): Add special case for debug
445 iterators, to avoid dereferenceable check.
446 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
447 * testsuite/20_util/to_address/debug.cc: New test.
449 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
451 * testsuite/experimental/net/execution_context/use_service.cc:
452 Require pthread and gthreads.
454 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
456 * doc/xml/manual/appendix_free.xml: Move "free books" list from
458 * doc/html/manual/appendix_free.html: Regenerate.
460 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
462 Library-side tests for parenthesized aggregate init
467 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
468 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
469 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
470 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
471 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
472 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
473 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
474 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
475 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
477 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
478 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
479 * testsuite/20_util/variant/92878_92947.cc: Likewise.
480 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
482 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
484 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
486 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
488 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
490 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
492 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
493 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
494 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
496 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
497 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
499 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
501 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
503 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
505 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
508 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
510 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
511 for changes due to parenthesized aggregate-initialization in C++20.
512 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
513 with std::chrono::sys_time in C++20.
515 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
516 to constrain C++20 versions of comparison operators. Fix backwards
517 logic of relational operators.
518 (move_iterator): Use requires-clause to constrain comparison operators
519 in C++20. Do not declare non-standard same-type overloads for C++20.
520 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
521 of comparisons and check using greedy_ops type.
522 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
523 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
524 main function from compile-only test.
525 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
527 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
529 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
530 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
531 C++20 concepts are required.
532 * include/bits/stl_iterator_base_types.h: Likewise.
533 * include/std/concepts: Likewise.
534 * include/std/version: Likewise.
535 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
538 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
539 (reverse_iterator::iterator_category): Define for C++20.
540 (reverse_iterator): Define comparison operators correctly for C++20.
541 (__normal_iterator): Add constraints to comparison operators for C++20.
542 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
543 overload for input iterators.
544 (move_iterator): Add constraints to comparison operators for C++20.
545 Define operator<=> for C++20.
546 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
547 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
548 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
549 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
551 * include/bits/iterator_concepts.h (__detail::__decay_copy)
552 (__detail::__member_begin, __detail::__adl_begin): Move here from
553 <bits/range_access.h>.
554 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
555 * bits/range_access.h (__cust_access::__decay_copy)
556 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
557 <bits/iterator_concepts.h>.
558 (ranges::iterator_t): Use __detail::__range_iter_t.
559 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
560 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
561 (front_insert_iterator): Likewise.
562 (insert_iterator): Implement changes from P0896R4 for C++20.
563 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
564 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
565 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
566 for inclusion in synopsis_c++20.cc which expects different signatures
567 for some function templates.
568 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
570 * include/std/type_traits (__is_array_convertible): Move definition
571 to immediately after is_convertible.
573 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
575 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
576 (chrono::months, chrono::sys_days, chrono::local_t)
577 (chrono::local_time, chrono::local_seconds, chrono::local_days):
579 (chrono::time_point): Add missing static assert.
580 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
581 * testsuite/std/time/clock/file/overview.cc: New test.
582 * testsuite/std/time/clock/file/members.cc: New test.
583 * testsuite/std/time/syn_c++20.cc: New test.
585 2020-03-25 Mike Crowe <mac@mcrowe.com>
587 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
589 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
592 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
594 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
595 * include/std/chrono (filesystem::__file_clock): Here.
596 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
597 Define public member functions for C++20.
598 (is_clock, is_clock_v): Define traits for C++20.
599 * include/std/condition_variable (condition_variable::wait_until): Add
600 check for valid clock.
601 * include/std/future (_State_baseV2::wait_until): Likewise.
602 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
603 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
605 * include/std/thread (this_thread::sleep_until): Likewise.
606 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
607 slow_clock with new namespace.
608 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
610 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
612 * testsuite/30_threads/future/members/clock_neg.cc: New test.
613 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
614 Qualify slow_clock with new namespace.
615 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
616 clock_neg.cc: New test.
617 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
619 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
620 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
622 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
623 slow_clock with new namespace.
624 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
625 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
627 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
628 * testsuite/std/time/traits/is_clock.cc: New test.
629 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
632 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
635 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
636 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
637 Improve test coverage.
640 * include/bits/fs_path.h (path::_S_str_convert): Replace first
641 parameter with basic_string_view so that strings with different
642 allocators can be accepted.
643 (path::generic_string<C,T,A>()): Use basic_string object that uses the
644 right allocator type.
645 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
646 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
649 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
652 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
653 (__is_nt_default_constructible_impl): Remove.
654 (__is_nothrow_default_constructible_impl): Remove.
655 (__is_nt_constructible_impl): Add bool template parameter. Adjust
656 partial specializations.
657 (__is_nothrow_constructible_impl): Replace class template with alias
659 (is_nothrow_default_constructible): Derive from alias template
660 __is_nothrow_constructible_impl instead of
661 __is_nothrow_default_constructible_impl.
662 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
664 * include/std/stop_token (stop_token::_Stop_state_ref): Define
665 comparison operators explicitly if the compiler won't synthesize them.
667 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
668 __cpp_lib_concepts before using iter_reference_t.
669 * include/bits/stream_iterator.h (istream_iterator): Check
670 __cpp_lib_concepts before using default_sentinel_t.
671 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
674 * include/experimental/executor (executor::executor(Executor)): Call
675 make_shared directly instead of _M_create. Create _Tgt1 object.
676 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
677 Call allocate_shared directly instead of _M_create. Create _Tgt2
679 (executor::target_type): Add cast needed for new _Tgt interface.
680 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
681 (executor::_Tgt): Define the same interface whether RTTI is enabled or
683 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
684 std::type_info in the interface.
685 (executor::_Tgt::_M_func): Add data member.
686 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
687 (executor::_Tgt1::_S_func): Define function to access target without
689 (executor::_M_create): Remove.
690 (operator==, operator!=): Simplify comparisons for executor.
691 * include/experimental/socket (is_error_code_enum<socket_errc>):
692 Define specialization before use.
693 * testsuite/experimental/net/executor/1.cc: New test.
695 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
698 * include/experimental/executor (service_already_exists): Add default
699 constructor. Declare make_service to be a friend.
700 * testsuite/experimental/net/execution_context/make_service.cc: New
703 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
705 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
706 a null pointer to functions with nonnull(1) attribute.
708 2020-03-11 Patrick Palka <ppalka@redhat.com>
710 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
711 'address' -> 'std::__addressof'.
712 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
713 a non-forward input_range.
714 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
715 default constructor protected instead of deleted, like with
716 input_iterator_wrapper.
717 (test_range::iterator): Add comment explaining that this type is used
718 only when the underlying wrapper is input_iterator_wrapper or
719 output_iterator_wrapper. Remove delegating defaulted constructor so
720 that the inherited default constructor is used instead.
722 LWG 3286 ranges::size is not required to be valid after a call to
723 ranges::begin on an input range
724 * include/std/ranges (subrange::subrange): Split single-argument
725 constructor into two, one constrained by _S_store_size and another by
727 (take_view::begin): Call size() before calling ranges::begin(_M_base).
728 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
729 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
731 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
733 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
734 instead of _M_current.
735 (split_view::_OuterIter::operator++): Likewise.
737 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
738 (transform_view::_Iterator::operator*): Add noexcept-specifier.
739 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
740 (split_view::_OuterIter::__current): Add noexcept.
741 (split_view::_InnerIter::__iter_swap): Remove.
742 (split_view::_InnerIter::__iter_move): Remove.
743 (split_view::_InnerIter::_M_i_current): New accessors.
744 (split_view::_InnerIter::__at_end): Use _M_i_current().
745 (split_view::_InnerIter::operator*): Likewise.
746 (split_view::_InnerIter::operator++): Likewise.
747 (iter_move(const _InnerIter&)): Likewise.
748 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
749 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
750 for iter_move and iter_swap on split_view's inner iterator.
753 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
754 Change expression in noexcept-specifier to match function body.
756 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
757 comment explaining multiple dg-do directives.
758 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
759 so test is run as well as compiled.
761 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
764 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
765 handle concatenations that change the type of the first component.
766 (path::operator+=(basic_string_view<value_type>)): Likewise.
767 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
769 2020-03-06 Patrick Palka <ppalka@redhat.com>
771 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
772 join_view::_Sentinel<!_Const>.
773 * testsuite/std/ranges/adaptors/join.cc: Augment test.
776 * include/bits/range_access.h (__cust_access::_Empty::operator()):
777 Declare return type to be bool instead of auto.
778 * testsuite/std/ranges/adaptors/93978.cc: New test.
780 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
783 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
784 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
785 second argument to __glibcxx_rwlock_init.
786 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
789 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
790 test to not fail due to PR 94063.
791 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
792 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
794 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
796 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
799 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
801 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
802 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
803 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
804 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
805 for return value, and in comparison.
806 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
809 * include/std/string_view: Include <bits/ostream_insert.h>.
810 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
812 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
814 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
816 2020-03-04 Patrick Palka <ppalka@redhat.com>
819 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
820 condition for when to use memset, making sure to additionally check that
821 the output pointer's value type is a non-volatile byte type. Instead of
822 requiring that the fill type is a byte type, just require that it's an
824 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
826 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
828 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
830 * testsuite/25_algorithms/fill/94017.cc: New test.
831 * testsuite/25_algorithms/fill_n/94017.cc: New test.
833 LWG 3355 The memory algorithms should support move-only input iterators
835 * include/bits/ranges_uninitialized.h
836 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
837 to copy __ifirst, which could be a move-only input iterator. Use
838 operator- instead of ranges::distance to compute distance from a sized
840 (__uninitialized_copy_n_fn::operator()): Likewise.
841 (__uninitialized_move_fn::operator()): Likewise.
842 (__uninitialized_move_n_fn::operator()): Likewise.
843 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
844 attempting to copy __first.
845 (__uninitialized_destroy_n_fn::operator()): Likewise.
846 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
848 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
850 * .../specialized_algorithms/uninitialized_move/constrained.cc:
853 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
854 protected instead of private.
855 (test_sized_range_sized_sent): New.
857 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
858 New testsuite iterator.
859 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
860 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
862 * include/bits/ranges_uninitialized.h
863 (uninitialized_copy_fn::operator()): Pass a reference type as the first
864 argument to is_nothrow_assignable_v.
865 (uninitialized_copy_fn::operator()): Likewise.
866 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
867 with the input iterator stripped of its move_iterator.
868 (uninitialized_move_n_fn::operator()): Likewise.
869 (uninitialized_fill_fn::operator()): Pass a reference type as the first
870 argument to is_nothrow_assignable_v.
871 (uninitialized_fill_n_fn::operator()): Likewise.
873 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
876 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
877 traits to control when to use memmove and memcmp optimizations.
878 (__is_nonvolatile_trivially_copyable): New helper trait.
879 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
880 use memcmp optimization with volatile data.
881 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
882 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
883 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
884 (__copy_move_backward_a2): Likewise.
885 (__equal_aux1): Use __memcmpable.
886 (__lexicographical_compare_aux): Do not use memcmp optimization with
888 * testsuite/25_algorithms/copy/94013.cc: New test.
889 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
890 * testsuite/25_algorithms/equal/94013.cc: New test.
891 * testsuite/25_algorithms/fill/94013.cc: New test.
892 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
893 * testsuite/25_algorithms/move/94013.cc: New test.
894 * testsuite/25_algorithms/move_backward/94013.cc: New test.
896 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
897 Avoid redundant iterator comparisons (LWG 3410).
899 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
902 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
904 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
906 * include/std/ranges (__detail::__maybe_empty_t): Rename to
908 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
910 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
913 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
915 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
917 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
919 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
920 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
921 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
922 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
923 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
925 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
926 Add libatomic option.
927 * testsuite/30_threads/jthread/jthread.cc: Likewise.
929 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
931 * include/bits/stl_algo.h
932 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
933 * include/bits/stl_algobase.h: ...here.
934 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
936 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
938 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
940 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
942 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
943 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
944 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
945 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
946 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
947 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
948 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
952 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
954 2020-02-28 Patrick Palka <ppalka@redhat.com>
957 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
958 Fix condition for when to use memcmp, making it consistent with the
959 corresponding condition used in std::lexicographical_compare.
960 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
962 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
963 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
964 existing signatures for C++2a.
966 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
968 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
969 test instead of just compiling it.
971 2020-02-28 Patrick Palka <ppalka@redhat.com>
973 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
974 whenever the underlying range models common_range.
976 * include/std/ranges (__detail::_CachedPosition): New struct.
977 (views::filter_view::_S_needs_cached_begin): New member variable.
978 (views::filter_view::_M_cached_begin): New member variable.
979 (views::filter_view::begin): Use _M_cached_begin to cache its
981 (views::drop_view::_S_needs_cached_begin): New static member variable.
982 (views::drop_view::_M_cached_begin): New member variable.
983 (views::drop_view::begin): Use _M_cached_begin to cache its result
984 when _S_needs_cached_begin.
985 (views::drop_while_view::_M_cached_begin): New member variable.
986 (views::drop_while_view::begin): Use _M_cached_begin to cache its
988 (views::reverse_view::_S_needs_cached_begin): New static member
990 (views::reverse_view::_M_cached_begin): New member variable.
991 (views::reverse_view::begin): Use _M_cached_begin to cache its result
992 when _S_needs_cached_begin.
993 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
994 drop_view::begin caches its result.
995 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
996 that drop_while_view::begin caches its result.
997 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
998 filter_view::begin caches its result.
999 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
1000 reverse_view::begin caches its result.
1002 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
1004 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
1005 filesystems that silently truncate timestamps.
1006 * testsuite/experimental/filesystem/operations/last_write_time.cc:
1009 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
1010 -Wstringop-overflow warnings.
1012 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1014 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
1015 -fdiagnostics-urls=never to options.
1017 2020-02-27 Patrick Palka <ppalka@redhat.com>
1019 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
1021 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
1022 (take_view::_Sentinel<_Const>): Likewise.
1023 (take_while_view::_Sentinel<_Const>): Likewise.
1024 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
1025 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1026 * testsuite/std/ranges/adaptors/take.cc: Augment test.
1027 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
1028 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1030 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
1031 base() of a vector<>::iterator is a pointer.
1032 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
1033 * testsuite/25_algorithms/move/constrained.cc: Likewise.
1034 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
1035 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
1037 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
1038 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
1039 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
1040 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
1041 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
1043 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
1045 * include/debug/array (operator<=>): Define for C++20.
1046 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
1047 Adjust dg-error line numbers.
1048 * testsuite/23_containers/array/tuple_interface/
1049 tuple_element_debug_neg.cc: Likewise.
1051 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
1052 defining _GLIBCXX_ASSERTIONS.
1053 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1054 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1055 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1056 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1057 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1058 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1059 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
1060 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
1061 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
1062 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
1063 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
1064 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1066 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
1067 C++98 where the member function of the base class returns void.
1069 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
1070 equality comparisons that support value-initialized iterators.
1072 * include/bits/boost_concept_check.h (__function_requires): Add
1073 _GLIBCXX14_CONSTEXPR.
1074 * testsuite/25_algorithms/min/concept_checks.cc: New test.
1076 2020-02-26 Patrick Palka <ppalka@redhat.com>
1079 * include/std/ranges (split_view::_InnerIter::operator==): Compare
1080 the operands' _M_i rather than their _M_i.current().
1081 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1083 P1645R1 constexpr for <numeric> algorithms
1084 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
1085 partial_sum, adjacent_difference): Make conditionally constexpr for
1087 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
1089 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
1090 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
1091 constexpr for C++20.
1092 * include/std/version (__cpp_lib_constexpr_numeric): Define.
1093 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
1094 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
1095 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
1096 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
1097 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
1098 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
1099 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
1100 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
1101 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
1102 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
1103 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
1105 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
1107 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
1108 variables in smaller scope and avoid calling ranges::distance when we
1109 know they are pointers. Remove statically-unreachable use of
1110 __builtin_unreachable().
1111 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
1114 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
1116 (__detail::__maybe_const_t): Likewise.
1117 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
1118 (transform_view, take_view, take_while_view, elements_view): Use
1120 (join_view, split_view): Use both.
1122 2020-02-25 Patrick Palka <ppalka@redhat.com>
1124 LWG 3397 basic_istream_view::iterator should not provide
1126 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
1128 (basic_istream_view:_Iterator::iterator_concept): ... this.
1129 * testsuite/std/ranges/istream_view.cc: Augment test.
1131 LWG 3325 Constrain return type of transformation function for
1133 * include/std/ranges (transform_view): Constrain the return type of the
1134 transformation function as per LWG 3325.
1135 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
1137 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
1138 * include/std/ranges (join_view::_Iterator::operator--): Require that
1139 range_reference_t<_Base> models common_range.
1140 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
1142 LWG 3301 transform_view::_Iterator has incorrect iterator_category
1143 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
1144 determination of iterator_category as per LWG 3301.
1145 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
1147 LWG 3292 iota_view is under-constrained
1148 * include/std/ranges (iota_view): Require that _Winc models semiregular
1150 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
1152 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
1154 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
1155 during constant evaluation. Call __builtin_memmove directly instead of
1157 (__copy_or_move_backward): Likewise.
1158 * include/bits/stl_algobase.h (__memmove): Remove.
1159 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
1160 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
1161 Use __builtin_memmove directly instead of __memmove.
1162 (__copy_move_a2): Do not use memmove during constant evaluation.
1163 (__copy_move_backward_a2): Use _IsMove constant to select correct
1164 __copy_move_backward specialization.
1165 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
1166 begin turned into moves during constant evaluation.
1168 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
1172 * include/bits/stl_algobase.h (__memmove): Cast away const before
1173 doing move assignment.
1174 * testsuite/25_algorithms/move/93872.cc: New test.
1175 * testsuite/25_algorithms/move_backward/93872.cc: New test.
1177 2020-02-24 Patrick Palka <ppalka@redhat.com>
1180 * include/bits/ranges_algobase.h (__copy_or_move,
1181 __copy_or_move_backward): Don't inspect the iter_value_t of the output
1182 iterator, instead inspect its iterator_traits directly.
1183 * include/bits/stl_iterator.h (back_insert_iterator::container):
1184 Conditionally initialize.
1185 (back_insert_iterator::difference_type): Conditionally define.
1186 (back_insert_iterator::back_insert_iterator): Conditionally define this
1187 default constructor.
1188 (front_insert_iterator::container): Conditionally initialize.
1189 (front_insert_iterator::difference_type): Conditionally define.
1190 (front_insert_iterator::front_insert_iterator): Conditionally define
1191 this default constructor.
1192 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
1193 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
1195 P0769R2 Add shift to <algorithm>
1196 * include/bits/ranges_algo.h (shift_left, shift_right): New.
1197 * testsuite/25_algorithms/shift_left/1.cc: New test.
1198 * testsuite/25_algorithms/shift_right/1.cc: New test.
1200 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
1202 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1203 Make noexcept-specifier conditional.
1204 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
1207 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
1209 (operator==(istream_iterator, default_sentinel_t)): Add operator.
1210 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
1211 * include/bits/streambuf_iterator.h
1212 (istreambuf_iterator(default_sentinel_t)): Add constructor.
1213 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
1214 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
1216 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
1217 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
1219 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
1221 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
1222 (ranges::enable_view): Simplify (LWG 3326).
1223 * include/bits/range_access.h (ranges::enable_view): Declare.
1224 * include/bits/regex.h (__enable_view_impl): Remove partial
1226 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
1227 * include/bits/stl_set.h (__enable_view_impl): Likewise.
1228 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
1229 * include/debug/multiset.h (__enable_view_impl): Likewise.
1230 * include/debug/set.h (__enable_view_impl): Likewise.
1231 * include/debug/unordered_set (__enable_view_impl): Likewise.
1232 * include/experimental/string_view (ranges::enable_view): Define
1233 partial specialization.
1234 * include/std/span (ranges::enable_view): Likewise.
1235 * include/std/string_view (ranges::enable_view): Likewise.
1236 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
1238 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
1240 * include/std/optional (operator<=>(optional<T>, optional<U>))
1241 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
1243 * include/std/tuple (__tuple_cmp): New helper function for <=>.
1244 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
1245 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
1246 (operator<=>(monostate, monostate)): Define for C++20.
1247 * testsuite/20_util/optional/relops/three_way.cc: New test.
1248 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
1249 * testsuite/20_util/variant/89851.cc: Move to ...
1250 * testsuite/20_util/variant/relops/89851.cc: ... here.
1251 * testsuite/20_util/variant/90008.cc: Move to ...
1252 * testsuite/20_util/variant/relops/90008.cc: ... here.
1253 * testsuite/20_util/variant/relops/three_way.cc: New test.
1255 2020-02-20 Patrick Palka <ppalka@redhat.com>
1257 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
1259 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
1260 __maybe_refwrap to capture lvalue references by reference, and then use
1261 unwrap_reference_t to forward the by-reference captures as references.
1262 * testsuite/std/ranges/adaptors/split.cc: Augment test.
1263 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
1265 * include/std/ranges (iota_view): Forward declare _Sentinel.
1266 (iota_view::_Iterator): Befriend _Sentinel.
1267 (iota_view::_Sentinel::_M_equal): New member function.
1268 (iota_view::_Sentinel::operator==): Use it.
1269 (views::_Iota::operator()): Forward __f using the correct type.
1270 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
1271 with integers of different signedness, to appease iota_view's deduction
1273 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
1275 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
1277 * include/bits/range_access.h (ranges::begin): Reject array of
1279 (ranges::end, ranges::size): Require arrays to be bounded.
1280 (ranges::data): Require lvalue or borrowed_range.
1281 (ranges::iterator_t): Remove constraint.
1282 * testsuite/std/ranges/access/begin.cc: Do not check array of
1284 * testsuite/std/ranges/access/begin_neg.cc: New test.
1285 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
1286 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
1287 * testsuite/std/ranges/access/ssize.cc: Do not check array of
1290 * include/std/system_error (error_category::operator<=>)
1291 (operator<=>(const error_code&, const error_code&))
1292 (operator<=>(const error_condition&, const error_condition&)): Define
1294 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
1295 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
1297 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
1299 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
1300 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
1302 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
1303 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
1305 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
1306 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
1307 Remove incorrect comment.
1308 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
1311 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
1313 * include/std/thread (thread::id::operator<=>): Define for C++20.
1314 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
1315 functions in namespace std.
1316 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
1318 2020-02-19 Patrick Palka <ppalka@redhat.com>
1320 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
1321 null terminator of the underlying string as part of the test_range.
1322 (main): Call test03.
1324 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
1326 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
1327 requirement (LWG 3385).
1328 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
1329 expected declaration.
1331 * include/std/ranges (take_while_view, drop_view, drop_while_view)
1332 (elements_view:_Iterator): Initialize data members (LWG 3364).
1334 * libsupc++/compare (three_way_comparable): Remove always-false check
1335 that should have been removed with weak_equality (P1959R0).
1336 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
1338 * include/std/concepts (__detail::__partially_ordered_with): Move here
1340 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
1341 to simplify definition (LWG 3331).
1342 * libsupc++/compare (__detail::__partially_ordered_with): Move to
1345 * include/std/concepts (totally_ordered_with): Remove redundant
1346 requirement (LWG 3329).
1348 * include/std/ranges (__detail::__convertible_to_non_slicing): New
1350 (__detail::__pair_like_convertible_to): Remove.
1351 (__detail::__pair_like_convertible_from): Add requirements for
1352 non-slicing conversions.
1353 (subrange): Constrain constructors with __convertible_to_non_slicing.
1354 Remove constructors from pair-like types. Add new deduction guide.
1355 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
1357 * include/bits/iterator_concepts.h (iter_move): Add declaration to
1358 prevent unqualified lookup finding a suitable declaration (LWG 3247).
1360 * include/std/memory_resource (polymorphic_allocator::allocate)
1361 (polymorphic_allocator::allocate_object): Change type of exception to
1362 bad_array_new_length (LWG 3237).
1363 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
1365 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
1366 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
1367 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
1368 * testsuite/20_util/unwrap_reference/3.cc: New test.
1370 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
1371 type during overload resolution, use static assert instead (LWG 3200).
1372 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
1374 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
1376 * include/std/span (span(T (&)[N])): Use non-deduced context to
1377 prevent first parameter from interfering with class template argument
1378 deduction (LWG 3369).
1379 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
1380 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
1383 * include/std/span (span::const_iterator, span::const_reverse_iterator)
1384 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
1386 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
1388 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1390 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
1391 constrained.cc: Likewise.
1392 * testsuite/20_util/specialized_algorithms/
1393 uninitialized_default_construct/constrained.cc: Likewise.
1394 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
1395 constrained.cc: Likewise.
1396 * testsuite/20_util/specialized_algorithms/uninitialized_move/
1397 constrained.cc: Likewise.
1398 * testsuite/20_util/specialized_algorithms/
1399 uninitialized_value_construct/constrained.cc: Likewise.
1401 * include/bits/range_access.h (range_size_t): Define alias template.
1402 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
1403 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
1405 * include/std/ranges (filter_view, transform_view, take_view)
1406 (join_view, split_view, reverse_view): Remove commented-out converting
1407 constructors (LWG 3280).
1409 * include/std/memory (uninitialized_construct_using_allocator): Use
1410 std::construct_at (LWG 3321).
1412 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
1413 (polymorphic_allocator::allocate_object)
1414 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
1416 LWG 3379. "safe" in several library names is misleading
1417 * include/bits/range_access.h (enable_safe_range): Rename to
1418 enable_borrowed_range.
1419 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
1420 (safe_range): Rename to borrowed_range.
1421 * include/bits/ranges_algo.h: Adjust to use new names.
1422 * include/bits/ranges_algobase.h: Likewise.
1423 * include/bits/ranges_uninitialized.h: Likewise.
1424 * include/std/ranges: Likewise.
1425 (safe_iterator_t): Rename to borrowed_iterator_t.
1426 (safe_subrange_t): Rename to borrowed_subrange_t.
1427 * include/std/span: Adjust to use new names.
1428 * include/std/string_view: Likewise.
1429 * include/experimental/string_view: Likewise.
1430 * testsuite/std/ranges/access/begin.cc: Likewise.
1431 * testsuite/std/ranges/access/cbegin.cc: Likewise.
1432 * testsuite/std/ranges/access/cdata.cc: Likewise.
1433 * testsuite/std/ranges/access/cend.cc: Likewise.
1434 * testsuite/std/ranges/access/crbegin.cc: Likewise.
1435 * testsuite/std/ranges/access/crend.cc: Likewise.
1436 * testsuite/std/ranges/access/data.cc: Likewise.
1437 * testsuite/std/ranges/access/end.cc: Likewise.
1438 * testsuite/std/ranges/access/rbegin.cc: Likewise.
1439 * testsuite/std/ranges/access/rend.cc: Likewise.
1440 * testsuite/std/ranges/safe_range.cc: Likewise.
1441 * testsuite/std/ranges/safe_range_types.cc: Likewise.
1442 * testsuite/util/testsuite_iterators.h: Likewise.
1444 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
1445 (tuple_element<1, const subrange<I, S, K>>): Add partial
1446 specializations (LWG 3398).
1447 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
1449 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1450 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
1451 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
1453 2020-02-18 Patrick Palka <ppalka@redhat.com>
1455 P1983R0 Wording for GB301, US296, US292, US291, and US283
1456 * include/std/ranges (filter_view::pred): New member function.
1457 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
1458 P1983R0 fixes the highlighted issue in the same way.
1459 (join_view::_Iterator<_Const>): Add friend
1460 join_view::_Iterator<!_Const>.
1461 (join_view::_M_inner): Remove mutable specifier, effectively reverting
1462 the proposed wording changes of P3278.
1463 (join_view::begin): Refine the condition for when to return a const
1465 (split_view::_OuterIter::_OuterIter): Adjust constraints.
1466 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
1469 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
1472 * include/std/ranges (_RangeAdaptor): Add deduction guide.
1473 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
1475 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
1476 (transform_view::_Iterator): Add alias _Base_iter and use in place of
1478 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
1479 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
1480 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
1481 (split_view::_InnerIter::_S_iter_cat()): Likewise.
1483 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
1484 assumption that long is wider than int.
1485 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
1486 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1487 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1488 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1490 P1976R2 Fixed-size span construction from dynamic range
1491 * include/std/span (__cpp_lib_span): Update value.
1492 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
1494 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
1496 (span::first<Count>(), span::last<Count>()): Use explicit type in
1498 (as_bytes, as_writable_bytes): Likewise.
1499 * include/std/version (__cpp_lib_span): Update value.
1500 * testsuite/23_containers/span/1.cc: Check new value.
1501 * testsuite/23_containers/span/2.cc: Check new value.
1502 * testsuite/23_containers/span/explicit.cc: New test.
1504 * include/std/span (span::__is_compatible_array): Simplify alias
1505 template by using requires-clause.
1506 (span::__is_compatible_ref): New alias template for constraining
1508 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
1509 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
1510 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
1511 redundant parentheses.
1512 (span(R&&)): Add missing constraints.
1514 * include/std/span (span): Reorder members and rename template
1515 parameters to match declarations in the C++2a working paper.
1517 P2116R0 Remove tuple-like protocol support from fixed-extent span
1518 * include/std/span (get, tuple_size, tuple_element): Remove.
1519 * testsuite/23_containers/span/everything.cc: Remove checks for
1521 * testsuite/23_containers/span/get_neg.cc: Remove.
1522 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
1523 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
1524 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
1526 2020-02-17 Patrick Palka <ppalka@redhat.com>
1528 P2106R0 Alternative wording for GB315 and GB316
1529 * include/bits/ranges_algo.h (in_fun_result): New.
1530 (for_each_result, for_each_n_result): Change into an alias of
1532 (in_in_result): New.
1533 (mismatch_result): Change into an alias of in_in_result.
1534 (copy_if_result): Change into an alias of in_out_result.
1535 (swap_ranges_result): Change into an alias of in_in_result.
1536 (unary_transform_result): Change into an alias of in_out_result.
1537 (in_in_out_result): New.
1538 (binary_transform_result): Change into an alias of in_in_out_result.
1539 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
1540 remove_copy_result, unique_copy_result, reverse_copy_result,
1541 rotate_copy_result, partial_sort_copy_result): Change into an alias of
1543 (in_out_out_result): New.
1544 (partition_copy_result, merge_result): Change into an alias of
1546 (set_union_result, set_intersection_result): Change into an alias of
1548 (set_difference_result): Change into an alias of in_out_result.
1549 (set_symmetric_difference): Change into an alias of in_in_out_result.
1550 (min_max_result): New.
1551 (minmax_result, minmax_element_result): Change into an alias of
1553 (in_found_result): New.
1554 (next_permutation_result, prev_permutation_result): Change into an alias
1556 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
1557 Adjust following changes to next_permutation_result and
1558 prev_permutation_result.
1559 * include/bits/ranges_algobase.h (in_out_result): New.
1560 (copy_result, move_result, move_backward_result, copy_backward_result,
1561 copy_n_result): Change into an alias of in_out_result.
1562 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
1563 uninitialized_copy_n_result, uninitialized_move_result,
1564 uninitialized_move_n_result): Likewise.
1565 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
1566 structured bindings.
1567 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
1569 P1243R4 Rangify new algorithms
1570 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
1571 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
1572 * testsuite/25_algorithms/clamp/constrained.cc: New test.
1573 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
1574 * testsuite/25_algorithms/sample/constrained.cc: New test.
1576 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
1578 P1964R2 Wording for boolean-testable
1579 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1580 (__adjacent_find_fn): Cast result of predicate to bool.
1581 * include/std/concepts (__boolean): Remove.
1582 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
1583 new helper concepts.
1584 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
1585 (predicate): Use __boolean_testable instead of boolean.
1586 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
1589 P1970R2 Consistency for size() functions: Add ranges::ssize
1590 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
1591 * testsuite/std/ranges/access/ssize.cc: New test.
1593 P1956R1 On the names of low-level bit manipulation functions
1594 * include/bits/hashtable_policy.h: Update comment.
1595 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
1596 (ispow2, ceil2, floor2, log2p1): Likewise.
1597 (__cpp_lib_int_pow2): Add feature test macro.
1598 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
1599 * include/std/memory (assume_aligned): Adjust use of ispow2.
1600 * include/std/version (__cpp_lib_int_pow2): Add.
1601 * libsupc++/new_opa.cc: Adjust use of __ispow2.
1602 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
1603 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
1604 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
1605 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
1606 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
1607 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
1608 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
1609 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
1610 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
1611 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
1612 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
1613 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
1615 * include/std/charconv: Add comment.
1617 PR libstdc++/92546 (partial)
1618 * include/bits/random.h (uniform_random_bit_generator): Move definition
1619 to <bits/uniform_int_dist.h>.
1620 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
1622 * include/bits/ranges_algobase.h: Do not include <cmath>.
1623 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
1625 * include/std/ranges: Do not include <limits>.
1626 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1628 PR libstdc++/92546 (partial)
1629 * include/Makefile.am: Add new header.
1630 * include/Makefile.in: Regenerate.
1631 * include/bits/int_limits.h: New header.
1632 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
1633 numeric_limits with __detail::__int_limits.
1634 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
1635 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
1637 * include/std/charconv (__to_chars_8, __from_chars_binary)
1638 (__from_chars_alpha_to_num, from_chars): Likewise.
1639 * include/std/memory_resource (polymorphic_allocator::allocate)
1640 (polymorphic_allocator::allocate_object): Likewise.
1641 * include/std/string_view (basic_string_view::_S_compare): Likewise.
1642 * include/std/utility (in_range): Likewise.
1643 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
1644 extra error about incomplete type __int_limits<bool>.
1645 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
1646 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
1647 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
1648 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
1649 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
1650 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
1651 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
1652 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
1653 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
1654 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
1655 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
1656 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
1658 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
1659 value for partial_ordering::unordered.
1661 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
1662 const-qualified expression variations.
1663 * include/std/concepts (copyable): Likewise.
1665 * include/std/type_traits (__is_standard_integer): New helper trait.
1666 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
1667 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
1668 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
1669 * testsuite/20_util/integer_comparisons/1.cc: New test.
1670 * testsuite/20_util/integer_comparisons/2.cc: New test.
1671 * testsuite/20_util/integer_comparisons/equal.cc: New test.
1672 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
1673 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
1674 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
1675 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
1676 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
1677 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
1678 * testsuite/20_util/integer_comparisons/less.cc: New test.
1679 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
1680 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
1681 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
1682 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
1683 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
1685 2020-02-16 Patrick Palka <ppalka@redhat.com>
1687 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1688 Move code after an early exit constexpr if to under an else branch.
1689 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
1691 2020-02-15 Patrick Palka <ppalka@redhat.com>
1693 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
1694 * include/bits/ranges_algobase.h: Likewise.
1695 * include/bits/ranges_uninitialized.h: Likewise.
1697 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
1698 binary_search, copy_if, count, count_if, equal_range, find, find_end,
1699 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
1700 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
1701 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
1702 lower_bound, make_heap, max, max_element, merge, min, min_element,
1703 minmax, minmax_element, mismatch, next_permutation, none_of,
1704 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
1705 partition_point, pop_heap, prev_permutation, push_heap, remove,
1706 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
1707 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
1708 search, search_n, set_difference, set_intersection,
1709 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
1710 stable_partition, stable_sort, swap_ranges, transform, unique,
1711 unique_copy, upper_bound): Convert into function objects.
1712 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
1713 fill, move_backward, copy_backward): Likewise.
1714 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
1715 uninitialized_default_construct_n, uninitialized_value_construct,
1716 uninitialized_value_construct_n, uninitialized_copy,
1717 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
1718 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
1719 destroy, destroy_n): Likewise.
1721 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
1722 (ranges::find_end): ... here.
1723 (ranges::__lexicographical_compare): Fold into ...
1724 (ranges::lexicographical_compare): ... here.
1725 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
1726 (ranges::equal): ... here.
1728 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
1730 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
1731 * include/std/deque: Likewise.
1732 * include/std/forward_list: Likewise.
1733 * include/std/list: Likewise.
1734 * include/std/string: Likewise.
1735 * include/std/vector: Likewise.
1736 * include/std/version: Likewise.
1737 * testsuite/23_containers/deque/erasure.cc: Test for new value.
1738 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1739 * testsuite/23_containers/list/erasure.cc: Likewise.
1740 * testsuite/23_containers/map/erasure.cc: Likewise.
1741 * testsuite/23_containers/set/erasure.cc: Likewise.
1742 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1743 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1744 * testsuite/23_containers/vector/erasure.cc: Likewise.
1746 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
1748 * include/bits/random.h (uniform_random_bit_generator): Require min()
1749 and max() to be constant expressions and min() to be less than max().
1750 * testsuite/26_numerics/random/concept.cc: Check additional cases.
1751 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1753 2020-02-13 Patrick Palka <ppalka@redhat.com>
1755 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
1756 * include/Makefile.in: Regenerate.
1757 * include/bits/ranges_uninitialized.h: New header.
1758 * include/std/memory: Include it.
1759 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
1761 * .../uninitialized_copy/constrained.cc: New test.
1762 * .../uninitialized_default_construct/constrained.cc: New test.
1763 * .../uninitialized_fill/constrained.cc: New test.
1764 * .../uninitialized_move/constrained.cc: New test.
1765 * .../uninitialized_value_construct/constrained.cc: New test.
1767 * include/Makefile.am: Add bits/ranges_algobase.h
1768 * include/Makefile.in: Regenerate.
1769 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
1771 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
1772 __detail::__is_move_iterator, copy_result, move_result,
1773 __equal, equal, copy_result, move_result, move_backward_result,
1774 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
1775 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
1776 fill): Split out into ...
1777 * bits/range_algobase.h: ... this new header.
1779 2020-02-12 Patrick Palka <ppalka@redhat.com>
1781 LWG 3389 and LWG 3390
1782 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
1783 constructing the move_iterator with __i.
1784 (counted_iterator::counted_iterator): Use std::move when initializing
1786 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
1787 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
1789 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
1794 * configure: Regenerated.
1796 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
1798 * include/bits/hashtable.h
1799 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
1800 missing std namespace qualification to forward call.
1802 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
1804 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
1806 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
1808 * include/std/ranges: Fix non-ASCII characters in comment.
1810 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
1811 equality comparison to be valid and return bool.
1812 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
1813 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
1814 type with ambiguous conversion to fundamental types.
1815 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
1817 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1819 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
1821 (readable_traits): Rename to indirectly_readable_traits.
1822 (readable): Rename to indirectly_readable.
1823 (writable): Rename to indirectly_writable.
1824 (__detail::__iter_exchange_move): Do not use remove_reference_t.
1825 (indirectly_swappable): Adjust requires expression parameter types.
1827 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
1828 (ranges::replace_if, ranges::generate_n, ranges::generate)
1829 (ranges::remove): Use new name for writable.
1830 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
1831 Use new name for readable.
1832 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
1833 new name for readable_traits.
1834 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
1835 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
1836 new definition of indirectly_readable.
1838 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
1839 to take parameters of common_iterator, instead of the common_iterator
1840 type itself. Fix argument for __common_iter_has_arrow constraint.
1841 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
1843 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1845 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
1847 (basic_istream_view::_Iterator::operator++()): Add missing return.
1849 2020-02-07 Patrick Palka <ppalka@redhat.com>
1851 * include/bits/ranges_algo.h: Remove extraneous &&.
1853 * include/std/ranges (ranges::__detail::__stream_extractable,
1854 ranges::basic_istream_view, ranges::istream_view): Define.
1855 * testsuite/std/ranges/istream_view: New test.
1857 Implement C++20 range adaptors
1858 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
1859 (subrange::_S_store_size): Mark as const instead of constexpr to
1860 avoid what seems to be a bug in GCC.
1861 (__detail::__box): Give it defaulted copy and move constructors.
1862 (ranges::views::_Single::operator()): Mark constexpr.
1863 (ranges::views::_Iota::operator()): Mark constexpr.
1864 (__detail::Empty): Define.
1865 (ranges::views::__closure::_RangeAdaptor,
1866 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
1867 ranges::views::all, ranges::__detail::find_if,
1868 ranges::__detail::find_if_not, ranges::__detail::mismatch,
1869 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
1870 ranges::views::transform, take_view, ranges::views::take,
1871 take_while_view, ranges::views::take_while, drop_view,
1872 ranges::views::drop, join_view, ranges::views::join,
1873 __detail::require_constant, __detail::tiny_range, split_view,
1874 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
1875 common_view, ranges::views::common, reverse_view,
1876 ranges::views::reverse,
1877 ranges::views::__detail::__is_reversible_subrange,
1878 ranges::views::__detail::__is_reverse_view, reverse_view,
1879 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
1880 ranges::views::elements, ranges::views::keys, ranges::views::values):
1882 (views): Alias for ranges::views.
1883 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
1884 tuple_element<1, ranges::subrange>): New partial specializations.
1885 * testsuite/std/ranges/adaptors/all.cc: New test.
1886 * testsuite/std/ranges/adaptors/common.cc: Likewise.
1887 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
1888 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
1889 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
1890 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
1891 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
1892 * testsuite/std/ranges/adaptors/join.cc: Likewise.
1893 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
1894 * testsuite/std/ranges/adaptors/split.cc: Likewise.
1895 * testsuite/std/ranges/adaptors/take.cc: Likewise.
1896 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
1897 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
1899 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1901 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
1902 type of enumerations and comparison category types.
1903 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
1904 (__cmp_cat::_Ncmp::unordered): Change value to 2.
1905 (partial_ordering::_M_value, weak_ordering::_M_value)
1906 (strong_ordering::_M_value): Change type to __cmp_cat::type.
1907 (partial_ordering::_M_is_ordered): Remove data member.
1908 (partial_ordering): Use second bit of _M_value for unordered. Adjust
1909 comparison operators.
1910 (weak_ordering::operator partial_ordering): Simplify to remove
1912 (operator<=>(unspecified, weak_ordering)): Likewise.
1913 (strong_ordering::operator partial_ordering): Likewise.
1914 (strong_ordering::operator weak_ordering): Likewise.
1915 (operator<=>(unspecified, strong_ordering)): Likewise.
1916 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
1917 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
1918 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
1920 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
1921 __cpp_lib_three_way_comparison macro and use deduced return type for
1923 * testsuite/std/ranges/iota/iterator.cc: New test.
1925 2020-02-07 Patrick Palka <ppalka@redhat.com>
1926 Jonathan Wakely <jwakely@redhat.com>
1928 Implement C++20 constrained algorithms
1929 * include/Makefile.am: Add new header.
1930 * include/Makefile.in: Regenerate.
1931 * include/std/algorithm: Include <bits/ranges_algo.h>.
1932 * include/bits/ranges_algo.h: New file.
1933 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
1934 * testsuite/25_algorithms/all_of/constrained.cc: New test.
1935 * testsuite/25_algorithms/any_of/constrained.cc: New test.
1936 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
1937 * testsuite/25_algorithms/copy/constrained.cc: New test.
1938 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
1939 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
1940 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
1941 * testsuite/25_algorithms/count/constrained.cc: New test.
1942 * testsuite/25_algorithms/count_if/constrained.cc: New test.
1943 * testsuite/25_algorithms/equal/constrained.cc: New test.
1944 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
1945 * testsuite/25_algorithms/fill/constrained.cc: New test.
1946 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
1947 * testsuite/25_algorithms/find/constrained.cc: New test.
1948 * testsuite/25_algorithms/find_end/constrained.cc: New test.
1949 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
1950 * testsuite/25_algorithms/find_if/constrained.cc: New test.
1951 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
1952 * testsuite/25_algorithms/for_each/constrained.cc: New test.
1953 * testsuite/25_algorithms/generate/constrained.cc: New test.
1954 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
1955 * testsuite/25_algorithms/heap/constrained.cc: New test.
1956 * testsuite/25_algorithms/includes/constrained.cc: New test.
1957 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
1958 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
1959 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
1960 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
1961 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
1962 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
1964 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
1965 * testsuite/25_algorithms/max/constrained.cc: New test.
1966 * testsuite/25_algorithms/max_element/constrained.cc: New test.
1967 * testsuite/25_algorithms/merge/constrained.cc: New test.
1968 * testsuite/25_algorithms/min/constrained.cc: New test.
1969 * testsuite/25_algorithms/min_element/constrained.cc: New test.
1970 * testsuite/25_algorithms/minmax/constrained.cc: New test.
1971 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
1972 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
1973 * testsuite/25_algorithms/move/constrained.cc: New test.
1974 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
1975 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
1976 * testsuite/25_algorithms/none_of/constrained.cc: New test.
1977 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
1978 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
1979 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
1980 * testsuite/25_algorithms/partition/constrained.cc: New test.
1981 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
1982 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
1983 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
1984 * testsuite/25_algorithms/remove/constrained.cc: New test.
1985 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
1986 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
1987 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
1988 * testsuite/25_algorithms/replace/constrained.cc: New test.
1989 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
1990 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
1991 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
1992 * testsuite/25_algorithms/reverse/constrained.cc: New test.
1993 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
1994 * testsuite/25_algorithms/rotate/constrained.cc: New test.
1995 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
1996 * testsuite/25_algorithms/search/constrained.cc: New test.
1997 * testsuite/25_algorithms/search_n/constrained.cc: New test.
1998 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
1999 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
2000 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
2002 * testsuite/25_algorithms/set_union/constrained.cc: New test.
2003 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
2004 * testsuite/25_algorithms/sort/constrained.cc: New test.
2005 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
2006 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
2007 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
2008 * testsuite/25_algorithms/transform/constrained.cc: New test.
2009 * testsuite/25_algorithms/unique/constrained.cc: New test.
2010 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
2011 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
2013 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
2015 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
2016 number in comment. Fix indentation.
2018 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
2019 redundant _GLIBCXX20_CONSTEXPR.
2021 * include/std/ranges (viewable_range): Replace decay_t with
2022 remove_cvref_t (LWG 3375).
2024 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
2026 * include/bits/iterator_concepts.h (iter_reference_t)
2027 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
2028 Remove workarounds for PR c++/67704.
2029 * testsuite/24_iterators/aliases.cc: New test.
2031 2020-02-05 Patrick Palka <ppalka@redhat.com>
2033 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
2034 when initializing _M_current.
2035 (move_iterator::base): Split into two overloads differing in
2036 ref-qualifiers as in P1207R4 for C++20.
2038 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
2040 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
2044 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
2045 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
2046 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
2048 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
2050 * configure: Regenerate.
2052 2020-01-31 Patrick Palka <ppalka@redhat.com>
2054 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
2055 test_range::end() returns the same type as test_range::begin().
2056 * testsuite/24_iterators/range_operations/next.cc: Likewise.
2057 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
2058 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
2059 Always return a sentinel<I>.
2061 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
2064 * include/std/stop_token (stop_token::stop_possible()): Call new
2065 _M_stop_possible() function.
2066 (stop_token::stop_requested()): Do not use stop_possible().
2067 (stop_token::binary_semaphore): New class, as temporary stand-in for
2068 std::binary_semaphore.
2069 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
2070 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
2071 New data members for symchronization with stop_callback destruction.
2072 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
2073 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
2075 (stop_token::_Stop_cb::_M_run): New member function.
2076 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
2078 (stop_token::_Stop_state::_M_owners): New data member to track
2079 reference count for ownership.
2080 (stop_token::_Stop_state::_M_value): New data member combining a
2081 spinlock, the stop requested flag, and the reference count for
2082 associated stop_source objects.
2083 (stop_token::_Stop_state::_M_requester): New data member for
2084 synchronization with stop_callback destruction.
2085 (stop_token::_Stop_state::_M_stop_possible()): New member function.
2086 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
2088 (stop_token::_Stop_state::_M_add_owner)
2089 (stop_token::_Stop_state::_M_release_ownership)
2090 (stop_token::_Stop_state::_M_add_ssrc)
2091 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
2092 updating reference counts.
2093 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2094 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
2095 (stop_token::_Stop_state::_M_try_lock)
2096 (stop_token::_Stop_state::_M_try_lock_and_stop)
2097 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
2099 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
2100 read and update state. Release lock while running callbacks. Use new
2101 data members to synchronize with callback destruction.
2102 (stop_token::_Stop_state::_M_remove_callback): Likewise.
2103 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
2104 to read and update state.
2105 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
2106 replacing shared_ptr.
2107 (stop_source::stop_source(const stop_source&)): Update reference count.
2108 (stop_source::operator=(const stop_source&)): Likewise.
2109 (stop_source::~stop_source()): Likewise.
2110 (stop_source::stop_source(stop_source&&)): Define as defaulted.
2111 (stop_source::operator=(stop_source&&)): Establish postcondition on
2113 (stop_callback): Enforce preconditions on template parameter. Replace
2114 base class with data member of new _Cb_impl type.
2115 (stop_callback::stop_callback(const stop_token&, Cb&&))
2116 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
2117 (stop_callback::_Cb_impl): New type wrapping _Callback member and
2118 defining the _S_execute member function.
2119 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
2121 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
2122 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
2123 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
2125 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
2127 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
2128 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
2129 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
2132 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
2133 three_way_comparable_with.
2134 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
2135 (compare_three_way::operator()): Remove redundant constraint from
2137 (__detail::_Synth3way::operator()): Use three_way_comparable_with
2138 instead of workaround.
2139 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
2140 output due to simplified constraints on compare_three_way::operator().
2143 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
2144 * testsuite/18_support/comparisons/object/93479.cc: New test.
2146 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
2147 returns the same type as test_range::begin(). Add comments.
2148 * testsuite/std/ranges/access/rbegin.cc: Likewise.
2149 * testsuite/std/ranges/access/rend.cc: Likewise.
2150 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
2151 test_range is the same as its iterator type.
2152 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
2153 operator- overloads to satisfy sized_sentinel_for when the iterator
2154 satisfies random_access_iterator.
2156 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
2159 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
2160 static assertion to object types.
2163 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
2164 clock_gettime instead of explicit glibc version check.
2165 * configure: Regenerate.
2167 2020-01-28 Martin Liska <mliska@suse.cz>
2170 * include/std/atomic: Fix typo.
2171 * include/std/optional: Likewise.
2173 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
2175 * configure: Regenerate.
2177 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
2180 * include/std/span (span): Fix deduction guide.
2181 * testsuite/23_containers/span/deduction.cc: New test.
2183 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
2185 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
2186 (__cmp_cat::_Ord::equivalent): Add enumerator.
2187 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
2189 (partial_ordering, weak_ordering, strong_ordering): Remove
2190 constructors taking __cmp_cat::_Eq parameters. Use renamed
2193 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
2195 * acinclude.m4: Handle `--with-toolexeclibdir='.
2196 * Makefile.in: Regenerate.
2197 * aclocal.m4: Regenerate.
2198 * configure: Regenerate.
2199 * doc/Makefile.in: Regenerate.
2200 * include/Makefile.in: Regenerate.
2201 * libsupc++/Makefile.in: Regenerate.
2202 * po/Makefile.in: Regenerate.
2203 * python/Makefile.in: Regenerate.
2204 * src/Makefile.in: Regenerate.
2205 * src/c++11/Makefile.in: Regenerate.
2206 * src/c++17/Makefile.in: Regenerate.
2207 * src/c++98/Makefile.in: Regenerate.
2208 * src/filesystem/Makefile.in: Regenerate.
2209 * testsuite/Makefile.in: Regenerate.
2211 2020-01-23 Alexandre Oliva <oliva@adacore.com>
2213 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
2214 * configure: Rebuild.
2216 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
2218 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
2221 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
2223 * include/Makefile.in: Regenerate.
2225 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
2227 * doc/xml/faq.xml: Fix grammar.
2228 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
2229 * doc/xml/manual/spine.xml: Update copyright years.
2230 * doc/html/*: Regenerate.
2232 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
2234 * doc/xml/faq.xml: Update for SVN -> Git transition.
2235 * doc/xml/manual/appendix_contributing.xml: Likewise.
2236 * doc/xml/manual/status_cxx1998.xml: Likewise.
2237 * doc/xml/manual/status_cxx2011.xml: Likewise.
2238 * doc/xml/manual/status_cxx2014.xml: Likewise.
2239 * doc/xml/manual/status_cxx2017.xml: Likewise.
2240 * doc/xml/manual/status_cxx2020.xml: Likewise.
2241 * doc/xml/manual/status_cxxtr1.xml: Likewise.
2242 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
2244 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
2246 * include/Makefile.am: Add coroutine to the std set.
2247 * include/Makefile.in: Regenerated.
2248 * include/std/coroutine: New file.
2250 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
2253 * include/bits/c++config: Only do PSTL config when the header is
2254 present, to fix freestanding.
2255 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
2256 functions if they were detected by configure.
2258 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
2259 Matthew Bauer <mjbauer95@gmail.com>
2260 Jonathan Wakely <jwakely@redhat.com>
2262 PR bootstrap/64271 (partial)
2263 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
2265 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
2266 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
2267 definitions with NetBSD upstream.
2268 (ctype_base::blank): Use _CTYPE_BL.
2269 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
2271 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
2272 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
2273 parameters to unsigned char.
2274 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
2276 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
2279 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
2280 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
2281 (_Equality_base): Remove.
2282 (_Equality<>::_M_equal): Review implementation. Use
2283 std::is_permutation.
2284 * testsuite/23_containers/unordered_multiset/operators/1.cc
2285 (Hash, Equal, test02, test03): New.
2286 * testsuite/23_containers/unordered_set/operators/1.cc
2287 (Hash, Equal, test02, test03): New.
2289 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
2292 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
2293 Move here from <bits/range_access.h> and define using __int128 when
2295 (__is_integer_like, __is_signed_integer_like): Move here from
2296 <bits/range_access.h>.
2297 (weakly_incrementable): Use __is_signed_integer_like.
2298 * include/bits/range_access.h (__max_diff_type, __max_size_type)
2299 (__is_integer_like, __is_signed_integer_like): Move to
2300 <bits/iterator_concepts.h>.
2301 (__make_unsigned_like_t): Move here from <ranges>.
2302 * include/std/ranges (__make_unsigned_like_t): Move to
2303 <bits/range_access.h>.
2304 (iota_view): Replace using-directive with using-declarations.
2305 * testsuite/std/ranges/iota/93267.cc: New test.
2306 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
2308 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
2311 * include/bits/fs_path.h (path::generic_string<C,A>)
2312 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
2313 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
2314 root-dir is converted to forward slash in generic pathname.
2315 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
2316 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
2319 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
2321 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
2322 (__atomic_float): Add default member initializer for C++20.
2323 * include/std/atomic (atomic): Likewise.
2324 (atomic::atomic()): Remove noexcept-specifier on default constructor.
2325 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
2326 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
2328 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2329 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
2330 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
2331 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
2332 expected result for is_trivially_default_constructible.
2333 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2334 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
2335 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
2336 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2337 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
2338 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
2339 expected results for is_trivially_default_constructible.
2340 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
2343 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
2345 * testsuite/util/testsuite_iterators.h: Improve comment.
2347 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
2348 initialization syntax.
2351 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
2352 of base class independent of __cplusplus value.
2353 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
2354 type defined in the base class
2355 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
2356 * testsuite/24_iterators/istreambuf_iterator/requirements/
2357 base_classes.cc: Adjust expected base class for C++98.
2359 2020-01-09 Olivier Hainque <hainque@adacore.com>
2361 * doc/xml/manual/appendix_contributing.xml: Document _C2
2362 as a reserved identifier, by VxWorks.
2363 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
2364 * include/bits/stl_multimap.h: Likewise.
2366 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2368 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
2369 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
2370 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
2371 partial specialization to disambiguate the two constrained
2374 * include/experimental/type_traits (experimental::is_pod_v): Disable
2375 -Wdeprecated-declarations warnings around reference to std::is_pod.
2376 * include/std/type_traits (is_pod_v): Likewise.
2377 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
2378 is_standard_layout and is_trivial. Do not check is_pod for C++20.
2379 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
2380 Add -Wno-deprecated for C++20.
2381 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
2382 * testsuite/20_util/is_pod/value.cc: Likewise.
2383 * testsuite/experimental/type_traits/value.cc: Likewise.
2385 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
2387 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
2388 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
2389 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
2391 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2394 * include/bits/random.h (operator>>): Check stream operation succeeds.
2395 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
2397 (operator>>): Remove redundant __istream_type typedefs. Check stream
2399 (__extract_params): New function to fill a vector from a stream.
2400 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
2403 * config/abi/pre/gnu.ver: Add new exports.
2404 * include/std/memory_resource (memory_resource::~memory_resource()):
2405 Do not define inline.
2406 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
2407 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
2409 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
2410 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
2412 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
2415 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
2417 (_Hashtable<>::__fwd_value_for): New.
2418 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
2420 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
2421 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
2422 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
2424 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
2425 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
2427 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
2429 * testsuite/23_containers/unordered_set/92124.cc: New.
2431 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
2434 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
2435 detailed error reporting for remove_all. Check result of recursive
2436 call before incrementing iterator.
2437 (remove_all(const path&), remove_all(const path&, error_code&)): Use
2439 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
2440 result of recursive call before incrementing iterator.
2441 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
2442 are reported correctly.
2443 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
2445 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
2447 * include/std/condition_variable
2448 (condition_variable_any::wait_on): Rename to match current draft
2450 (condition_variable_any::wait_on_until): Likewise.
2451 (condition_variable_any::wait_on_for): Likewise.
2452 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
2453 Adjust tests to account for renamed methods.
2455 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
2458 * include/bits/stl_tree.h
2459 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
2460 std::move_if_noexcept by std::move.
2461 * testsuite/23_containers/map/92124.cc: New.
2462 * testsuite/23_containers/set/92124.cc: New.
2464 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
2466 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
2467 (stop_source): Likewise (LWG 3362).
2468 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
2471 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
2472 (lexicographical_compare_three_way): Do not depend on
2474 * include/std/version (__cpp_lib_three_way_comparison): Only define
2475 when __cpp_lib_concepts is defined.
2476 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
2478 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
2480 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
2481 Only define four-argument overload when __cpp_lib_concepts is defined.
2483 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
2485 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
2487 2020-01-01 Jakub Jelinek <jakub@redhat.com>
2489 Update copyright years.
2491 Copyright (C) 2020 Free Software Foundation, Inc.
2493 Copying and distribution of this file, with or without modification,
2494 are permitted in any medium without royalty provided the copyright
2495 notice and this notice are preserved.