1 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
3 * include/bits/allocator.h (operator!=): Do not define for C++20.
4 * include/bits/locale_classes.h (operator!=): Likewise.
5 * include/bits/std_function.h (operator==(nullptr_t, const function&))
6 (operator!=(const function&, nullptr_t))
7 (operator!=(nullptr_t, const function&)): Likewise.
8 * include/ext/bitmap_allocator.h (operator!=): Likewise.
9 * include/ext/debug_allocator.h (operator!=): Likewise.
10 * include/ext/extptr_allocator.h (operator!=): Likewise.
11 * include/ext/malloc_allocator.h (operator!=): Likewise.
12 * include/ext/mt_allocator.h (operator!=): Likewise.
13 * include/ext/new_allocator.h (operator!=): Likewise.
14 * include/ext/pool_allocator.h (operator!=): Likewise.
15 * include/ext/throw_allocator.h (operator!=): Likewise.
16 * include/std/bitset (bitset::operator!=): Likewise.
17 * include/std/memory_resource (operator!=): Likewise.
18 * include/std/scoped_allocator (operator!=): Likewise.
20 * include/std/typeindex (operator<=>): Define for C++20.
21 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
23 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
25 * libsupc++/compare (compare_three_way): Fix constraint so that
26 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
27 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
31 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
32 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
33 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
34 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
35 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
36 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
40 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
41 * testsuite/18_support/comparisons/categories/94565.cc: New test.
43 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
45 * include/std/coroutine: Update coroutines builtin define,
48 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
50 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
51 (strong_order, weak_order, partial_order): Replace uses of <=> with
52 compare_three_way function object (LWG 3324).
53 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
54 equality operator so that X satisfies three_way_comparable.
55 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
57 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
59 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
60 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
61 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
62 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
63 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
65 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
67 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
69 * include/std/complex (operator==(const T&, const complex<T>&))
70 (operator!=(const complex<T>&, const complex<T>&))
71 (operator!=(const complex<T>&, const T&))
72 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
73 * testsuite/26_numerics/slice/compare.cc: New test.
75 * include/std/charconv (to_chars_result, from_chars_result): Add
76 defaulted equality comparisons for C++20.
77 * testsuite/20_util/from_chars/compare.cc: New test.
78 * testsuite/20_util/to_chars/compare.cc: New test.
80 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
83 * include/std/charconv (__integer_to_chars_result_type)
84 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
86 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
87 use of std::string_view with std::string.
88 * testsuite/20_util/from_chars/2.cc: Likewise.
89 * testsuite/20_util/to_chars/1.cc: Likewise.
90 * testsuite/20_util/to_chars/2.cc: Likewise.
92 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
95 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
96 usable in constant expressions for C++20.
97 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
99 (std::char_traits<char>, std::char_traits<wchar_t>)
100 (std::char_traits<char8_t>): Make move, copy and assign usable in
101 constant expressions for C++20.
102 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
103 and copy usable in constant expressions for C++20.
104 * include/std/string_view (basic_string_view::copy): Add
105 _GLIBCXX20_CONSTEXPR.
106 * testsuite/21_strings/basic_string_view/operations/copy/char/
107 constexpr.cc: New test.
108 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
109 constexpr.cc: New test.
111 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
113 * doc/xml/manual/appendix_contributing.xml: Refer to Git
114 documentation instead of Subversion. Switch to https.
115 * doc/html/manual/appendix_contributing.html: Regenerate.
117 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
120 * include/bits/ptr_traits.h (__to_address): Add special case for debug
121 iterators, to avoid dereferenceable check.
122 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
123 * testsuite/20_util/to_address/debug.cc: New test.
125 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
127 * testsuite/experimental/net/execution_context/use_service.cc:
128 Require pthread and gthreads.
130 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
132 * doc/xml/manual/appendix_free.xml: Move "free books" list from
134 * doc/html/manual/appendix_free.html: Regenerate.
136 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
138 Library-side tests for parenthesized aggregate init
143 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
144 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
145 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
146 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
147 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
148 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
149 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
150 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
151 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
153 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
154 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
155 * testsuite/20_util/variant/92878_92947.cc: Likewise.
156 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
158 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
160 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
162 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
164 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
166 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
168 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
169 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
170 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
172 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
173 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
175 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
177 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
179 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
181 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
184 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
186 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
187 for changes due to parenthesized aggregate-initialization in C++20.
188 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
189 with std::chrono::sys_time in C++20.
191 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
192 to constrain C++20 versions of comparison operators. Fix backwards
193 logic of relational operators.
194 (move_iterator): Use requires-clause to constrain comparison operators
195 in C++20. Do not declare non-standard same-type overloads for C++20.
196 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
197 of comparisons and check using greedy_ops type.
198 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
199 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
200 main function from compile-only test.
201 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
203 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
205 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
206 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
207 C++20 concepts are required.
208 * include/bits/stl_iterator_base_types.h: Likewise.
209 * include/std/concepts: Likewise.
210 * include/std/version: Likewise.
211 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
214 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
215 (reverse_iterator::iterator_category): Define for C++20.
216 (reverse_iterator): Define comparison operators correctly for C++20.
217 (__normal_iterator): Add constraints to comparison operators for C++20.
218 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
219 overload for input iterators.
220 (move_iterator): Add constraints to comparison operators for C++20.
221 Define operator<=> for C++20.
222 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
223 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
224 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
225 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
227 * include/bits/iterator_concepts.h (__detail::__decay_copy)
228 (__detail::__member_begin, __detail::__adl_begin): Move here from
229 <bits/range_access.h>.
230 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
231 * bits/range_access.h (__cust_access::__decay_copy)
232 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
233 <bits/iterator_concepts.h>.
234 (ranges::iterator_t): Use __detail::__range_iter_t.
235 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
236 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
237 (front_insert_iterator): Likewise.
238 (insert_iterator): Implement changes from P0896R4 for C++20.
239 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
240 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
241 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
242 for inclusion in synopsis_c++20.cc which expects different signatures
243 for some function templates.
244 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
246 * include/std/type_traits (__is_array_convertible): Move definition
247 to immediately after is_convertible.
249 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
251 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
252 (chrono::months, chrono::sys_days, chrono::local_t)
253 (chrono::local_time, chrono::local_seconds, chrono::local_days):
255 (chrono::time_point): Add missing static assert.
256 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
257 * testsuite/std/time/clock/file/overview.cc: New test.
258 * testsuite/std/time/clock/file/members.cc: New test.
259 * testsuite/std/time/syn_c++20.cc: New test.
261 2020-03-25 Mike Crowe <mac@mcrowe.com>
263 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
265 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
268 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
270 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
271 * include/std/chrono (filesystem::__file_clock): Here.
272 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
273 Define public member functions for C++20.
274 (is_clock, is_clock_v): Define traits for C++20.
275 * include/std/condition_variable (condition_variable::wait_until): Add
276 check for valid clock.
277 * include/std/future (_State_baseV2::wait_until): Likewise.
278 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
279 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
281 * include/std/thread (this_thread::sleep_until): Likewise.
282 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
283 slow_clock with new namespace.
284 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
286 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
288 * testsuite/30_threads/future/members/clock_neg.cc: New test.
289 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
290 Qualify slow_clock with new namespace.
291 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
292 clock_neg.cc: New test.
293 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
295 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
296 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
298 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
299 slow_clock with new namespace.
300 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
301 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
303 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
304 * testsuite/std/time/traits/is_clock.cc: New test.
305 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
308 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
311 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
312 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
313 Improve test coverage.
316 * include/bits/fs_path.h (path::_S_str_convert): Replace first
317 parameter with basic_string_view so that strings with different
318 allocators can be accepted.
319 (path::generic_string<C,T,A>()): Use basic_string object that uses the
320 right allocator type.
321 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
322 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
325 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
328 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
329 (__is_nt_default_constructible_impl): Remove.
330 (__is_nothrow_default_constructible_impl): Remove.
331 (__is_nt_constructible_impl): Add bool template parameter. Adjust
332 partial specializations.
333 (__is_nothrow_constructible_impl): Replace class template with alias
335 (is_nothrow_default_constructible): Derive from alias template
336 __is_nothrow_constructible_impl instead of
337 __is_nothrow_default_constructible_impl.
338 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
340 * include/std/stop_token (stop_token::_Stop_state_ref): Define
341 comparison operators explicitly if the compiler won't synthesize them.
343 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
344 __cpp_lib_concepts before using iter_reference_t.
345 * include/bits/stream_iterator.h (istream_iterator): Check
346 __cpp_lib_concepts before using default_sentinel_t.
347 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
350 * include/experimental/executor (executor::executor(Executor)): Call
351 make_shared directly instead of _M_create. Create _Tgt1 object.
352 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
353 Call allocate_shared directly instead of _M_create. Create _Tgt2
355 (executor::target_type): Add cast needed for new _Tgt interface.
356 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
357 (executor::_Tgt): Define the same interface whether RTTI is enabled or
359 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
360 std::type_info in the interface.
361 (executor::_Tgt::_M_func): Add data member.
362 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
363 (executor::_Tgt1::_S_func): Define function to access target without
365 (executor::_M_create): Remove.
366 (operator==, operator!=): Simplify comparisons for executor.
367 * include/experimental/socket (is_error_code_enum<socket_errc>):
368 Define specialization before use.
369 * testsuite/experimental/net/executor/1.cc: New test.
371 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
374 * include/experimental/executor (service_already_exists): Add default
375 constructor. Declare make_service to be a friend.
376 * testsuite/experimental/net/execution_context/make_service.cc: New
379 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
381 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
382 a null pointer to functions with nonnull(1) attribute.
384 2020-03-11 Patrick Palka <ppalka@redhat.com>
386 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
387 'address' -> 'std::__addressof'.
388 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
389 a non-forward input_range.
390 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
391 default constructor protected instead of deleted, like with
392 input_iterator_wrapper.
393 (test_range::iterator): Add comment explaining that this type is used
394 only when the underlying wrapper is input_iterator_wrapper or
395 output_iterator_wrapper. Remove delegating defaulted constructor so
396 that the inherited default constructor is used instead.
398 LWG 3286 ranges::size is not required to be valid after a call to
399 ranges::begin on an input range
400 * include/std/ranges (subrange::subrange): Split single-argument
401 constructor into two, one constrained by _S_store_size and another by
403 (take_view::begin): Call size() before calling ranges::begin(_M_base).
404 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
405 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
407 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
409 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
410 instead of _M_current.
411 (split_view::_OuterIter::operator++): Likewise.
413 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
414 (transform_view::_Iterator::operator*): Add noexcept-specifier.
415 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
416 (split_view::_OuterIter::__current): Add noexcept.
417 (split_view::_InnerIter::__iter_swap): Remove.
418 (split_view::_InnerIter::__iter_move): Remove.
419 (split_view::_InnerIter::_M_i_current): New accessors.
420 (split_view::_InnerIter::__at_end): Use _M_i_current().
421 (split_view::_InnerIter::operator*): Likewise.
422 (split_view::_InnerIter::operator++): Likewise.
423 (iter_move(const _InnerIter&)): Likewise.
424 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
425 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
426 for iter_move and iter_swap on split_view's inner iterator.
429 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
430 Change expression in noexcept-specifier to match function body.
432 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
433 comment explaining multiple dg-do directives.
434 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
435 so test is run as well as compiled.
437 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
440 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
441 handle concatenations that change the type of the first component.
442 (path::operator+=(basic_string_view<value_type>)): Likewise.
443 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
445 2020-03-06 Patrick Palka <ppalka@redhat.com>
447 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
448 join_view::_Sentinel<!_Const>.
449 * testsuite/std/ranges/adaptors/join.cc: Augment test.
452 * include/bits/range_access.h (__cust_access::_Empty::operator()):
453 Declare return type to be bool instead of auto.
454 * testsuite/std/ranges/adaptors/93978.cc: New test.
456 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
459 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
460 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
461 second argument to __glibcxx_rwlock_init.
462 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
465 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
466 test to not fail due to PR 94063.
467 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
468 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
470 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
472 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
475 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
477 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
478 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
479 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
480 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
481 for return value, and in comparison.
482 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
485 * include/std/string_view: Include <bits/ostream_insert.h>.
486 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
488 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
490 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
492 2020-03-04 Patrick Palka <ppalka@redhat.com>
495 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
496 condition for when to use memset, making sure to additionally check that
497 the output pointer's value type is a non-volatile byte type. Instead of
498 requiring that the fill type is a byte type, just require that it's an
500 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
502 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
504 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
506 * testsuite/25_algorithms/fill/94017.cc: New test.
507 * testsuite/25_algorithms/fill_n/94017.cc: New test.
509 LWG 3355 The memory algorithms should support move-only input iterators
511 * include/bits/ranges_uninitialized.h
512 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
513 to copy __ifirst, which could be a move-only input iterator. Use
514 operator- instead of ranges::distance to compute distance from a sized
516 (__uninitialized_copy_n_fn::operator()): Likewise.
517 (__uninitialized_move_fn::operator()): Likewise.
518 (__uninitialized_move_n_fn::operator()): Likewise.
519 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
520 attempting to copy __first.
521 (__uninitialized_destroy_n_fn::operator()): Likewise.
522 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
524 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
526 * .../specialized_algorithms/uninitialized_move/constrained.cc:
529 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
530 protected instead of private.
531 (test_sized_range_sized_sent): New.
533 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
534 New testsuite iterator.
535 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
536 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
538 * include/bits/ranges_uninitialized.h
539 (uninitialized_copy_fn::operator()): Pass a reference type as the first
540 argument to is_nothrow_assignable_v.
541 (uninitialized_copy_fn::operator()): Likewise.
542 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
543 with the input iterator stripped of its move_iterator.
544 (uninitialized_move_n_fn::operator()): Likewise.
545 (uninitialized_fill_fn::operator()): Pass a reference type as the first
546 argument to is_nothrow_assignable_v.
547 (uninitialized_fill_n_fn::operator()): Likewise.
549 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
552 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
553 traits to control when to use memmove and memcmp optimizations.
554 (__is_nonvolatile_trivially_copyable): New helper trait.
555 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
556 use memcmp optimization with volatile data.
557 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
558 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
559 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
560 (__copy_move_backward_a2): Likewise.
561 (__equal_aux1): Use __memcmpable.
562 (__lexicographical_compare_aux): Do not use memcmp optimization with
564 * testsuite/25_algorithms/copy/94013.cc: New test.
565 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
566 * testsuite/25_algorithms/equal/94013.cc: New test.
567 * testsuite/25_algorithms/fill/94013.cc: New test.
568 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
569 * testsuite/25_algorithms/move/94013.cc: New test.
570 * testsuite/25_algorithms/move_backward/94013.cc: New test.
572 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
573 Avoid redundant iterator comparisons (LWG 3410).
575 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
578 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
580 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
582 * include/std/ranges (__detail::__maybe_empty_t): Rename to
584 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
586 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
589 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
591 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
593 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
595 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
596 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
597 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
598 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
599 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
601 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
602 Add libatomic option.
603 * testsuite/30_threads/jthread/jthread.cc: Likewise.
605 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
607 * include/bits/stl_algo.h
608 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
609 * include/bits/stl_algobase.h: ...here.
610 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
612 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
614 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
616 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
618 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
619 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
620 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
621 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
622 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
623 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
624 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
628 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
630 2020-02-28 Patrick Palka <ppalka@redhat.com>
633 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
634 Fix condition for when to use memcmp, making it consistent with the
635 corresponding condition used in std::lexicographical_compare.
636 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
638 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
639 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
640 existing signatures for C++2a.
642 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
644 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
645 test instead of just compiling it.
647 2020-02-28 Patrick Palka <ppalka@redhat.com>
649 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
650 whenever the underlying range models common_range.
652 * include/std/ranges (__detail::_CachedPosition): New struct.
653 (views::filter_view::_S_needs_cached_begin): New member variable.
654 (views::filter_view::_M_cached_begin): New member variable.
655 (views::filter_view::begin): Use _M_cached_begin to cache its
657 (views::drop_view::_S_needs_cached_begin): New static member variable.
658 (views::drop_view::_M_cached_begin): New member variable.
659 (views::drop_view::begin): Use _M_cached_begin to cache its result
660 when _S_needs_cached_begin.
661 (views::drop_while_view::_M_cached_begin): New member variable.
662 (views::drop_while_view::begin): Use _M_cached_begin to cache its
664 (views::reverse_view::_S_needs_cached_begin): New static member
666 (views::reverse_view::_M_cached_begin): New member variable.
667 (views::reverse_view::begin): Use _M_cached_begin to cache its result
668 when _S_needs_cached_begin.
669 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
670 drop_view::begin caches its result.
671 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
672 that drop_while_view::begin caches its result.
673 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
674 filter_view::begin caches its result.
675 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
676 reverse_view::begin caches its result.
678 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
680 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
681 filesystems that silently truncate timestamps.
682 * testsuite/experimental/filesystem/operations/last_write_time.cc:
685 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
686 -Wstringop-overflow warnings.
688 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
690 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
691 -fdiagnostics-urls=never to options.
693 2020-02-27 Patrick Palka <ppalka@redhat.com>
695 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
697 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
698 (take_view::_Sentinel<_Const>): Likewise.
699 (take_while_view::_Sentinel<_Const>): Likewise.
700 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
701 * testsuite/std/ranges/adaptors/split.cc: Augment test.
702 * testsuite/std/ranges/adaptors/take.cc: Augment test.
703 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
704 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
706 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
707 base() of a vector<>::iterator is a pointer.
708 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
709 * testsuite/25_algorithms/move/constrained.cc: Likewise.
710 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
711 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
713 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
714 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
715 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
716 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
717 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
719 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
721 * include/debug/array (operator<=>): Define for C++20.
722 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
723 Adjust dg-error line numbers.
724 * testsuite/23_containers/array/tuple_interface/
725 tuple_element_debug_neg.cc: Likewise.
727 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
728 defining _GLIBCXX_ASSERTIONS.
729 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
730 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
731 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
732 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
733 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
734 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
735 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
736 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
737 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
738 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
739 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
740 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
742 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
743 C++98 where the member function of the base class returns void.
745 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
746 equality comparisons that support value-initialized iterators.
748 * include/bits/boost_concept_check.h (__function_requires): Add
749 _GLIBCXX14_CONSTEXPR.
750 * testsuite/25_algorithms/min/concept_checks.cc: New test.
752 2020-02-26 Patrick Palka <ppalka@redhat.com>
755 * include/std/ranges (split_view::_InnerIter::operator==): Compare
756 the operands' _M_i rather than their _M_i.current().
757 * testsuite/std/ranges/adaptors/split.cc: Augment test.
759 P1645R1 constexpr for <numeric> algorithms
760 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
761 partial_sum, adjacent_difference): Make conditionally constexpr for
763 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
765 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
766 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
768 * include/std/version (__cpp_lib_constexpr_numeric): Define.
769 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
770 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
771 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
772 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
773 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
774 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
775 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
776 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
777 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
778 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
779 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
781 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
783 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
784 variables in smaller scope and avoid calling ranges::distance when we
785 know they are pointers. Remove statically-unreachable use of
786 __builtin_unreachable().
787 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
790 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
792 (__detail::__maybe_const_t): Likewise.
793 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
794 (transform_view, take_view, take_while_view, elements_view): Use
796 (join_view, split_view): Use both.
798 2020-02-25 Patrick Palka <ppalka@redhat.com>
800 LWG 3397 basic_istream_view::iterator should not provide
802 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
804 (basic_istream_view:_Iterator::iterator_concept): ... this.
805 * testsuite/std/ranges/istream_view.cc: Augment test.
807 LWG 3325 Constrain return type of transformation function for
809 * include/std/ranges (transform_view): Constrain the return type of the
810 transformation function as per LWG 3325.
811 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
813 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
814 * include/std/ranges (join_view::_Iterator::operator--): Require that
815 range_reference_t<_Base> models common_range.
816 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
818 LWG 3301 transform_view::_Iterator has incorrect iterator_category
819 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
820 determination of iterator_category as per LWG 3301.
821 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
823 LWG 3292 iota_view is under-constrained
824 * include/std/ranges (iota_view): Require that _Winc models semiregular
826 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
828 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
830 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
831 during constant evaluation. Call __builtin_memmove directly instead of
833 (__copy_or_move_backward): Likewise.
834 * include/bits/stl_algobase.h (__memmove): Remove.
835 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
836 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
837 Use __builtin_memmove directly instead of __memmove.
838 (__copy_move_a2): Do not use memmove during constant evaluation.
839 (__copy_move_backward_a2): Use _IsMove constant to select correct
840 __copy_move_backward specialization.
841 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
842 begin turned into moves during constant evaluation.
844 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
848 * include/bits/stl_algobase.h (__memmove): Cast away const before
849 doing move assignment.
850 * testsuite/25_algorithms/move/93872.cc: New test.
851 * testsuite/25_algorithms/move_backward/93872.cc: New test.
853 2020-02-24 Patrick Palka <ppalka@redhat.com>
856 * include/bits/ranges_algobase.h (__copy_or_move,
857 __copy_or_move_backward): Don't inspect the iter_value_t of the output
858 iterator, instead inspect its iterator_traits directly.
859 * include/bits/stl_iterator.h (back_insert_iterator::container):
860 Conditionally initialize.
861 (back_insert_iterator::difference_type): Conditionally define.
862 (back_insert_iterator::back_insert_iterator): Conditionally define this
864 (front_insert_iterator::container): Conditionally initialize.
865 (front_insert_iterator::difference_type): Conditionally define.
866 (front_insert_iterator::front_insert_iterator): Conditionally define
867 this default constructor.
868 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
869 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
871 P0769R2 Add shift to <algorithm>
872 * include/bits/ranges_algo.h (shift_left, shift_right): New.
873 * testsuite/25_algorithms/shift_left/1.cc: New test.
874 * testsuite/25_algorithms/shift_right/1.cc: New test.
876 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
878 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
879 Make noexcept-specifier conditional.
880 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
883 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
885 (operator==(istream_iterator, default_sentinel_t)): Add operator.
886 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
887 * include/bits/streambuf_iterator.h
888 (istreambuf_iterator(default_sentinel_t)): Add constructor.
889 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
890 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
892 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
893 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
895 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
897 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
898 (ranges::enable_view): Simplify (LWG 3326).
899 * include/bits/range_access.h (ranges::enable_view): Declare.
900 * include/bits/regex.h (__enable_view_impl): Remove partial
902 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
903 * include/bits/stl_set.h (__enable_view_impl): Likewise.
904 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
905 * include/debug/multiset.h (__enable_view_impl): Likewise.
906 * include/debug/set.h (__enable_view_impl): Likewise.
907 * include/debug/unordered_set (__enable_view_impl): Likewise.
908 * include/experimental/string_view (ranges::enable_view): Define
909 partial specialization.
910 * include/std/span (ranges::enable_view): Likewise.
911 * include/std/string_view (ranges::enable_view): Likewise.
912 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
914 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
916 * include/std/optional (operator<=>(optional<T>, optional<U>))
917 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
919 * include/std/tuple (__tuple_cmp): New helper function for <=>.
920 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
921 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
922 (operator<=>(monostate, monostate)): Define for C++20.
923 * testsuite/20_util/optional/relops/three_way.cc: New test.
924 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
925 * testsuite/20_util/variant/89851.cc: Move to ...
926 * testsuite/20_util/variant/relops/89851.cc: ... here.
927 * testsuite/20_util/variant/90008.cc: Move to ...
928 * testsuite/20_util/variant/relops/90008.cc: ... here.
929 * testsuite/20_util/variant/relops/three_way.cc: New test.
931 2020-02-20 Patrick Palka <ppalka@redhat.com>
933 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
935 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
936 __maybe_refwrap to capture lvalue references by reference, and then use
937 unwrap_reference_t to forward the by-reference captures as references.
938 * testsuite/std/ranges/adaptors/split.cc: Augment test.
939 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
941 * include/std/ranges (iota_view): Forward declare _Sentinel.
942 (iota_view::_Iterator): Befriend _Sentinel.
943 (iota_view::_Sentinel::_M_equal): New member function.
944 (iota_view::_Sentinel::operator==): Use it.
945 (views::_Iota::operator()): Forward __f using the correct type.
946 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
947 with integers of different signedness, to appease iota_view's deduction
949 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
951 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
953 * include/bits/range_access.h (ranges::begin): Reject array of
955 (ranges::end, ranges::size): Require arrays to be bounded.
956 (ranges::data): Require lvalue or borrowed_range.
957 (ranges::iterator_t): Remove constraint.
958 * testsuite/std/ranges/access/begin.cc: Do not check array of
960 * testsuite/std/ranges/access/begin_neg.cc: New test.
961 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
962 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
963 * testsuite/std/ranges/access/ssize.cc: Do not check array of
966 * include/std/system_error (error_category::operator<=>)
967 (operator<=>(const error_code&, const error_code&))
968 (operator<=>(const error_condition&, const error_condition&)): Define
970 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
971 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
973 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
975 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
976 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
978 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
979 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
981 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
982 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
983 Remove incorrect comment.
984 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
987 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
989 * include/std/thread (thread::id::operator<=>): Define for C++20.
990 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
991 functions in namespace std.
992 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
994 2020-02-19 Patrick Palka <ppalka@redhat.com>
996 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
997 null terminator of the underlying string as part of the test_range.
1000 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
1002 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
1003 requirement (LWG 3385).
1004 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
1005 expected declaration.
1007 * include/std/ranges (take_while_view, drop_view, drop_while_view)
1008 (elements_view:_Iterator): Initialize data members (LWG 3364).
1010 * libsupc++/compare (three_way_comparable): Remove always-false check
1011 that should have been removed with weak_equality (P1959R0).
1012 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
1014 * include/std/concepts (__detail::__partially_ordered_with): Move here
1016 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
1017 to simplify definition (LWG 3331).
1018 * libsupc++/compare (__detail::__partially_ordered_with): Move to
1021 * include/std/concepts (totally_ordered_with): Remove redundant
1022 requirement (LWG 3329).
1024 * include/std/ranges (__detail::__convertible_to_non_slicing): New
1026 (__detail::__pair_like_convertible_to): Remove.
1027 (__detail::__pair_like_convertible_from): Add requirements for
1028 non-slicing conversions.
1029 (subrange): Constrain constructors with __convertible_to_non_slicing.
1030 Remove constructors from pair-like types. Add new deduction guide.
1031 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
1033 * include/bits/iterator_concepts.h (iter_move): Add declaration to
1034 prevent unqualified lookup finding a suitable declaration (LWG 3247).
1036 * include/std/memory_resource (polymorphic_allocator::allocate)
1037 (polymorphic_allocator::allocate_object): Change type of exception to
1038 bad_array_new_length (LWG 3237).
1039 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
1041 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
1042 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
1043 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
1044 * testsuite/20_util/unwrap_reference/3.cc: New test.
1046 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
1047 type during overload resolution, use static assert instead (LWG 3200).
1048 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
1050 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
1052 * include/std/span (span(T (&)[N])): Use non-deduced context to
1053 prevent first parameter from interfering with class template argument
1054 deduction (LWG 3369).
1055 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
1056 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
1059 * include/std/span (span::const_iterator, span::const_reverse_iterator)
1060 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
1062 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
1064 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
1066 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
1067 constrained.cc: Likewise.
1068 * testsuite/20_util/specialized_algorithms/
1069 uninitialized_default_construct/constrained.cc: Likewise.
1070 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
1071 constrained.cc: Likewise.
1072 * testsuite/20_util/specialized_algorithms/uninitialized_move/
1073 constrained.cc: Likewise.
1074 * testsuite/20_util/specialized_algorithms/
1075 uninitialized_value_construct/constrained.cc: Likewise.
1077 * include/bits/range_access.h (range_size_t): Define alias template.
1078 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
1079 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
1081 * include/std/ranges (filter_view, transform_view, take_view)
1082 (join_view, split_view, reverse_view): Remove commented-out converting
1083 constructors (LWG 3280).
1085 * include/std/memory (uninitialized_construct_using_allocator): Use
1086 std::construct_at (LWG 3321).
1088 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
1089 (polymorphic_allocator::allocate_object)
1090 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
1092 LWG 3379. "safe" in several library names is misleading
1093 * include/bits/range_access.h (enable_safe_range): Rename to
1094 enable_borrowed_range.
1095 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
1096 (safe_range): Rename to borrowed_range.
1097 * include/bits/ranges_algo.h: Adjust to use new names.
1098 * include/bits/ranges_algobase.h: Likewise.
1099 * include/bits/ranges_uninitialized.h: Likewise.
1100 * include/std/ranges: Likewise.
1101 (safe_iterator_t): Rename to borrowed_iterator_t.
1102 (safe_subrange_t): Rename to borrowed_subrange_t.
1103 * include/std/span: Adjust to use new names.
1104 * include/std/string_view: Likewise.
1105 * include/experimental/string_view: Likewise.
1106 * testsuite/std/ranges/access/begin.cc: Likewise.
1107 * testsuite/std/ranges/access/cbegin.cc: Likewise.
1108 * testsuite/std/ranges/access/cdata.cc: Likewise.
1109 * testsuite/std/ranges/access/cend.cc: Likewise.
1110 * testsuite/std/ranges/access/crbegin.cc: Likewise.
1111 * testsuite/std/ranges/access/crend.cc: Likewise.
1112 * testsuite/std/ranges/access/data.cc: Likewise.
1113 * testsuite/std/ranges/access/end.cc: Likewise.
1114 * testsuite/std/ranges/access/rbegin.cc: Likewise.
1115 * testsuite/std/ranges/access/rend.cc: Likewise.
1116 * testsuite/std/ranges/safe_range.cc: Likewise.
1117 * testsuite/std/ranges/safe_range_types.cc: Likewise.
1118 * testsuite/util/testsuite_iterators.h: Likewise.
1120 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
1121 (tuple_element<1, const subrange<I, S, K>>): Add partial
1122 specializations (LWG 3398).
1123 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
1125 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1126 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
1127 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
1129 2020-02-18 Patrick Palka <ppalka@redhat.com>
1131 P1983R0 Wording for GB301, US296, US292, US291, and US283
1132 * include/std/ranges (filter_view::pred): New member function.
1133 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
1134 P1983R0 fixes the highlighted issue in the same way.
1135 (join_view::_Iterator<_Const>): Add friend
1136 join_view::_Iterator<!_Const>.
1137 (join_view::_M_inner): Remove mutable specifier, effectively reverting
1138 the proposed wording changes of P3278.
1139 (join_view::begin): Refine the condition for when to return a const
1141 (split_view::_OuterIter::_OuterIter): Adjust constraints.
1142 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
1145 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
1148 * include/std/ranges (_RangeAdaptor): Add deduction guide.
1149 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
1151 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
1152 (transform_view::_Iterator): Add alias _Base_iter and use in place of
1154 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
1155 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
1156 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
1157 (split_view::_InnerIter::_S_iter_cat()): Likewise.
1159 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
1160 assumption that long is wider than int.
1161 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
1162 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1163 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1164 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1166 P1976R2 Fixed-size span construction from dynamic range
1167 * include/std/span (__cpp_lib_span): Update value.
1168 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
1170 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
1172 (span::first<Count>(), span::last<Count>()): Use explicit type in
1174 (as_bytes, as_writable_bytes): Likewise.
1175 * include/std/version (__cpp_lib_span): Update value.
1176 * testsuite/23_containers/span/1.cc: Check new value.
1177 * testsuite/23_containers/span/2.cc: Check new value.
1178 * testsuite/23_containers/span/explicit.cc: New test.
1180 * include/std/span (span::__is_compatible_array): Simplify alias
1181 template by using requires-clause.
1182 (span::__is_compatible_ref): New alias template for constraining
1184 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
1185 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
1186 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
1187 redundant parentheses.
1188 (span(R&&)): Add missing constraints.
1190 * include/std/span (span): Reorder members and rename template
1191 parameters to match declarations in the C++2a working paper.
1193 P2116R0 Remove tuple-like protocol support from fixed-extent span
1194 * include/std/span (get, tuple_size, tuple_element): Remove.
1195 * testsuite/23_containers/span/everything.cc: Remove checks for
1197 * testsuite/23_containers/span/get_neg.cc: Remove.
1198 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
1199 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
1200 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
1202 2020-02-17 Patrick Palka <ppalka@redhat.com>
1204 P2106R0 Alternative wording for GB315 and GB316
1205 * include/bits/ranges_algo.h (in_fun_result): New.
1206 (for_each_result, for_each_n_result): Change into an alias of
1208 (in_in_result): New.
1209 (mismatch_result): Change into an alias of in_in_result.
1210 (copy_if_result): Change into an alias of in_out_result.
1211 (swap_ranges_result): Change into an alias of in_in_result.
1212 (unary_transform_result): Change into an alias of in_out_result.
1213 (in_in_out_result): New.
1214 (binary_transform_result): Change into an alias of in_in_out_result.
1215 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
1216 remove_copy_result, unique_copy_result, reverse_copy_result,
1217 rotate_copy_result, partial_sort_copy_result): Change into an alias of
1219 (in_out_out_result): New.
1220 (partition_copy_result, merge_result): Change into an alias of
1222 (set_union_result, set_intersection_result): Change into an alias of
1224 (set_difference_result): Change into an alias of in_out_result.
1225 (set_symmetric_difference): Change into an alias of in_in_out_result.
1226 (min_max_result): New.
1227 (minmax_result, minmax_element_result): Change into an alias of
1229 (in_found_result): New.
1230 (next_permutation_result, prev_permutation_result): Change into an alias
1232 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
1233 Adjust following changes to next_permutation_result and
1234 prev_permutation_result.
1235 * include/bits/ranges_algobase.h (in_out_result): New.
1236 (copy_result, move_result, move_backward_result, copy_backward_result,
1237 copy_n_result): Change into an alias of in_out_result.
1238 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
1239 uninitialized_copy_n_result, uninitialized_move_result,
1240 uninitialized_move_n_result): Likewise.
1241 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
1242 structured bindings.
1243 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
1245 P1243R4 Rangify new algorithms
1246 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
1247 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
1248 * testsuite/25_algorithms/clamp/constrained.cc: New test.
1249 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
1250 * testsuite/25_algorithms/sample/constrained.cc: New test.
1252 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
1254 P1964R2 Wording for boolean-testable
1255 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1256 (__adjacent_find_fn): Cast result of predicate to bool.
1257 * include/std/concepts (__boolean): Remove.
1258 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
1259 new helper concepts.
1260 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
1261 (predicate): Use __boolean_testable instead of boolean.
1262 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
1265 P1970R2 Consistency for size() functions: Add ranges::ssize
1266 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
1267 * testsuite/std/ranges/access/ssize.cc: New test.
1269 P1956R1 On the names of low-level bit manipulation functions
1270 * include/bits/hashtable_policy.h: Update comment.
1271 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
1272 (ispow2, ceil2, floor2, log2p1): Likewise.
1273 (__cpp_lib_int_pow2): Add feature test macro.
1274 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
1275 * include/std/memory (assume_aligned): Adjust use of ispow2.
1276 * include/std/version (__cpp_lib_int_pow2): Add.
1277 * libsupc++/new_opa.cc: Adjust use of __ispow2.
1278 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
1279 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
1280 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
1281 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
1282 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
1283 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
1284 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
1285 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
1286 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
1287 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
1288 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
1289 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
1291 * include/std/charconv: Add comment.
1293 PR libstdc++/92546 (partial)
1294 * include/bits/random.h (uniform_random_bit_generator): Move definition
1295 to <bits/uniform_int_dist.h>.
1296 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
1298 * include/bits/ranges_algobase.h: Do not include <cmath>.
1299 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
1301 * include/std/ranges: Do not include <limits>.
1302 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1304 PR libstdc++/92546 (partial)
1305 * include/Makefile.am: Add new header.
1306 * include/Makefile.in: Regenerate.
1307 * include/bits/int_limits.h: New header.
1308 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
1309 numeric_limits with __detail::__int_limits.
1310 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
1311 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
1313 * include/std/charconv (__to_chars_8, __from_chars_binary)
1314 (__from_chars_alpha_to_num, from_chars): Likewise.
1315 * include/std/memory_resource (polymorphic_allocator::allocate)
1316 (polymorphic_allocator::allocate_object): Likewise.
1317 * include/std/string_view (basic_string_view::_S_compare): Likewise.
1318 * include/std/utility (in_range): Likewise.
1319 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
1320 extra error about incomplete type __int_limits<bool>.
1321 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
1322 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
1323 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
1324 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
1325 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
1326 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
1327 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
1328 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
1329 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
1330 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
1331 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
1332 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
1334 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
1335 value for partial_ordering::unordered.
1337 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
1338 const-qualified expression variations.
1339 * include/std/concepts (copyable): Likewise.
1341 * include/std/type_traits (__is_standard_integer): New helper trait.
1342 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
1343 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
1344 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
1345 * testsuite/20_util/integer_comparisons/1.cc: New test.
1346 * testsuite/20_util/integer_comparisons/2.cc: New test.
1347 * testsuite/20_util/integer_comparisons/equal.cc: New test.
1348 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
1349 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
1350 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
1351 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
1352 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
1353 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
1354 * testsuite/20_util/integer_comparisons/less.cc: New test.
1355 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
1356 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
1357 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
1358 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
1359 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
1361 2020-02-16 Patrick Palka <ppalka@redhat.com>
1363 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1364 Move code after an early exit constexpr if to under an else branch.
1365 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
1367 2020-02-15 Patrick Palka <ppalka@redhat.com>
1369 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
1370 * include/bits/ranges_algobase.h: Likewise.
1371 * include/bits/ranges_uninitialized.h: Likewise.
1373 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
1374 binary_search, copy_if, count, count_if, equal_range, find, find_end,
1375 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
1376 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
1377 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
1378 lower_bound, make_heap, max, max_element, merge, min, min_element,
1379 minmax, minmax_element, mismatch, next_permutation, none_of,
1380 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
1381 partition_point, pop_heap, prev_permutation, push_heap, remove,
1382 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
1383 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
1384 search, search_n, set_difference, set_intersection,
1385 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
1386 stable_partition, stable_sort, swap_ranges, transform, unique,
1387 unique_copy, upper_bound): Convert into function objects.
1388 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
1389 fill, move_backward, copy_backward): Likewise.
1390 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
1391 uninitialized_default_construct_n, uninitialized_value_construct,
1392 uninitialized_value_construct_n, uninitialized_copy,
1393 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
1394 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
1395 destroy, destroy_n): Likewise.
1397 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
1398 (ranges::find_end): ... here.
1399 (ranges::__lexicographical_compare): Fold into ...
1400 (ranges::lexicographical_compare): ... here.
1401 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
1402 (ranges::equal): ... here.
1404 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
1406 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
1407 * include/std/deque: Likewise.
1408 * include/std/forward_list: Likewise.
1409 * include/std/list: Likewise.
1410 * include/std/string: Likewise.
1411 * include/std/vector: Likewise.
1412 * include/std/version: Likewise.
1413 * testsuite/23_containers/deque/erasure.cc: Test for new value.
1414 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1415 * testsuite/23_containers/list/erasure.cc: Likewise.
1416 * testsuite/23_containers/map/erasure.cc: Likewise.
1417 * testsuite/23_containers/set/erasure.cc: Likewise.
1418 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1419 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1420 * testsuite/23_containers/vector/erasure.cc: Likewise.
1422 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
1424 * include/bits/random.h (uniform_random_bit_generator): Require min()
1425 and max() to be constant expressions and min() to be less than max().
1426 * testsuite/26_numerics/random/concept.cc: Check additional cases.
1427 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1429 2020-02-13 Patrick Palka <ppalka@redhat.com>
1431 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
1432 * include/Makefile.in: Regenerate.
1433 * include/bits/ranges_uninitialized.h: New header.
1434 * include/std/memory: Include it.
1435 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
1437 * .../uninitialized_copy/constrained.cc: New test.
1438 * .../uninitialized_default_construct/constrained.cc: New test.
1439 * .../uninitialized_fill/constrained.cc: New test.
1440 * .../uninitialized_move/constrained.cc: New test.
1441 * .../uninitialized_value_construct/constrained.cc: New test.
1443 * include/Makefile.am: Add bits/ranges_algobase.h
1444 * include/Makefile.in: Regenerate.
1445 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
1447 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
1448 __detail::__is_move_iterator, copy_result, move_result,
1449 __equal, equal, copy_result, move_result, move_backward_result,
1450 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
1451 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
1452 fill): Split out into ...
1453 * bits/range_algobase.h: ... this new header.
1455 2020-02-12 Patrick Palka <ppalka@redhat.com>
1457 LWG 3389 and LWG 3390
1458 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
1459 constructing the move_iterator with __i.
1460 (counted_iterator::counted_iterator): Use std::move when initializing
1462 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
1463 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
1465 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
1470 * configure: Regenerated.
1472 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
1474 * include/bits/hashtable.h
1475 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
1476 missing std namespace qualification to forward call.
1478 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
1480 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
1482 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
1484 * include/std/ranges: Fix non-ASCII characters in comment.
1486 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
1487 equality comparison to be valid and return bool.
1488 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
1489 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
1490 type with ambiguous conversion to fundamental types.
1491 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
1493 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1495 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
1497 (readable_traits): Rename to indirectly_readable_traits.
1498 (readable): Rename to indirectly_readable.
1499 (writable): Rename to indirectly_writable.
1500 (__detail::__iter_exchange_move): Do not use remove_reference_t.
1501 (indirectly_swappable): Adjust requires expression parameter types.
1503 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
1504 (ranges::replace_if, ranges::generate_n, ranges::generate)
1505 (ranges::remove): Use new name for writable.
1506 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
1507 Use new name for readable.
1508 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
1509 new name for readable_traits.
1510 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
1511 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
1512 new definition of indirectly_readable.
1514 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
1515 to take parameters of common_iterator, instead of the common_iterator
1516 type itself. Fix argument for __common_iter_has_arrow constraint.
1517 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
1519 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1521 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
1523 (basic_istream_view::_Iterator::operator++()): Add missing return.
1525 2020-02-07 Patrick Palka <ppalka@redhat.com>
1527 * include/bits/ranges_algo.h: Remove extraneous &&.
1529 * include/std/ranges (ranges::__detail::__stream_extractable,
1530 ranges::basic_istream_view, ranges::istream_view): Define.
1531 * testsuite/std/ranges/istream_view: New test.
1533 Implement C++20 range adaptors
1534 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
1535 (subrange::_S_store_size): Mark as const instead of constexpr to
1536 avoid what seems to be a bug in GCC.
1537 (__detail::__box): Give it defaulted copy and move constructors.
1538 (ranges::views::_Single::operator()): Mark constexpr.
1539 (ranges::views::_Iota::operator()): Mark constexpr.
1540 (__detail::Empty): Define.
1541 (ranges::views::__closure::_RangeAdaptor,
1542 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
1543 ranges::views::all, ranges::__detail::find_if,
1544 ranges::__detail::find_if_not, ranges::__detail::mismatch,
1545 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
1546 ranges::views::transform, take_view, ranges::views::take,
1547 take_while_view, ranges::views::take_while, drop_view,
1548 ranges::views::drop, join_view, ranges::views::join,
1549 __detail::require_constant, __detail::tiny_range, split_view,
1550 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
1551 common_view, ranges::views::common, reverse_view,
1552 ranges::views::reverse,
1553 ranges::views::__detail::__is_reversible_subrange,
1554 ranges::views::__detail::__is_reverse_view, reverse_view,
1555 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
1556 ranges::views::elements, ranges::views::keys, ranges::views::values):
1558 (views): Alias for ranges::views.
1559 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
1560 tuple_element<1, ranges::subrange>): New partial specializations.
1561 * testsuite/std/ranges/adaptors/all.cc: New test.
1562 * testsuite/std/ranges/adaptors/common.cc: Likewise.
1563 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
1564 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
1565 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
1566 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
1567 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
1568 * testsuite/std/ranges/adaptors/join.cc: Likewise.
1569 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
1570 * testsuite/std/ranges/adaptors/split.cc: Likewise.
1571 * testsuite/std/ranges/adaptors/take.cc: Likewise.
1572 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
1573 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
1575 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1577 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
1578 type of enumerations and comparison category types.
1579 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
1580 (__cmp_cat::_Ncmp::unordered): Change value to 2.
1581 (partial_ordering::_M_value, weak_ordering::_M_value)
1582 (strong_ordering::_M_value): Change type to __cmp_cat::type.
1583 (partial_ordering::_M_is_ordered): Remove data member.
1584 (partial_ordering): Use second bit of _M_value for unordered. Adjust
1585 comparison operators.
1586 (weak_ordering::operator partial_ordering): Simplify to remove
1588 (operator<=>(unspecified, weak_ordering)): Likewise.
1589 (strong_ordering::operator partial_ordering): Likewise.
1590 (strong_ordering::operator weak_ordering): Likewise.
1591 (operator<=>(unspecified, strong_ordering)): Likewise.
1592 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
1593 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
1594 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
1596 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
1597 __cpp_lib_three_way_comparison macro and use deduced return type for
1599 * testsuite/std/ranges/iota/iterator.cc: New test.
1601 2020-02-07 Patrick Palka <ppalka@redhat.com>
1602 Jonathan Wakely <jwakely@redhat.com>
1604 Implement C++20 constrained algorithms
1605 * include/Makefile.am: Add new header.
1606 * include/Makefile.in: Regenerate.
1607 * include/std/algorithm: Include <bits/ranges_algo.h>.
1608 * include/bits/ranges_algo.h: New file.
1609 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
1610 * testsuite/25_algorithms/all_of/constrained.cc: New test.
1611 * testsuite/25_algorithms/any_of/constrained.cc: New test.
1612 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
1613 * testsuite/25_algorithms/copy/constrained.cc: New test.
1614 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
1615 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
1616 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
1617 * testsuite/25_algorithms/count/constrained.cc: New test.
1618 * testsuite/25_algorithms/count_if/constrained.cc: New test.
1619 * testsuite/25_algorithms/equal/constrained.cc: New test.
1620 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
1621 * testsuite/25_algorithms/fill/constrained.cc: New test.
1622 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
1623 * testsuite/25_algorithms/find/constrained.cc: New test.
1624 * testsuite/25_algorithms/find_end/constrained.cc: New test.
1625 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
1626 * testsuite/25_algorithms/find_if/constrained.cc: New test.
1627 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
1628 * testsuite/25_algorithms/for_each/constrained.cc: New test.
1629 * testsuite/25_algorithms/generate/constrained.cc: New test.
1630 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
1631 * testsuite/25_algorithms/heap/constrained.cc: New test.
1632 * testsuite/25_algorithms/includes/constrained.cc: New test.
1633 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
1634 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
1635 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
1636 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
1637 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
1638 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
1640 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
1641 * testsuite/25_algorithms/max/constrained.cc: New test.
1642 * testsuite/25_algorithms/max_element/constrained.cc: New test.
1643 * testsuite/25_algorithms/merge/constrained.cc: New test.
1644 * testsuite/25_algorithms/min/constrained.cc: New test.
1645 * testsuite/25_algorithms/min_element/constrained.cc: New test.
1646 * testsuite/25_algorithms/minmax/constrained.cc: New test.
1647 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
1648 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
1649 * testsuite/25_algorithms/move/constrained.cc: New test.
1650 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
1651 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
1652 * testsuite/25_algorithms/none_of/constrained.cc: New test.
1653 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
1654 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
1655 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
1656 * testsuite/25_algorithms/partition/constrained.cc: New test.
1657 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
1658 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
1659 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
1660 * testsuite/25_algorithms/remove/constrained.cc: New test.
1661 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
1662 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
1663 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
1664 * testsuite/25_algorithms/replace/constrained.cc: New test.
1665 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
1666 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
1667 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
1668 * testsuite/25_algorithms/reverse/constrained.cc: New test.
1669 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
1670 * testsuite/25_algorithms/rotate/constrained.cc: New test.
1671 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
1672 * testsuite/25_algorithms/search/constrained.cc: New test.
1673 * testsuite/25_algorithms/search_n/constrained.cc: New test.
1674 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
1675 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
1676 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
1678 * testsuite/25_algorithms/set_union/constrained.cc: New test.
1679 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
1680 * testsuite/25_algorithms/sort/constrained.cc: New test.
1681 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
1682 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
1683 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
1684 * testsuite/25_algorithms/transform/constrained.cc: New test.
1685 * testsuite/25_algorithms/unique/constrained.cc: New test.
1686 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
1687 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
1689 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
1691 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
1692 number in comment. Fix indentation.
1694 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
1695 redundant _GLIBCXX20_CONSTEXPR.
1697 * include/std/ranges (viewable_range): Replace decay_t with
1698 remove_cvref_t (LWG 3375).
1700 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
1702 * include/bits/iterator_concepts.h (iter_reference_t)
1703 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
1704 Remove workarounds for PR c++/67704.
1705 * testsuite/24_iterators/aliases.cc: New test.
1707 2020-02-05 Patrick Palka <ppalka@redhat.com>
1709 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
1710 when initializing _M_current.
1711 (move_iterator::base): Split into two overloads differing in
1712 ref-qualifiers as in P1207R4 for C++20.
1714 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
1716 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
1720 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
1721 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
1722 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
1724 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
1726 * configure: Regenerate.
1728 2020-01-31 Patrick Palka <ppalka@redhat.com>
1730 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
1731 test_range::end() returns the same type as test_range::begin().
1732 * testsuite/24_iterators/range_operations/next.cc: Likewise.
1733 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
1734 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
1735 Always return a sentinel<I>.
1737 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
1740 * include/std/stop_token (stop_token::stop_possible()): Call new
1741 _M_stop_possible() function.
1742 (stop_token::stop_requested()): Do not use stop_possible().
1743 (stop_token::binary_semaphore): New class, as temporary stand-in for
1744 std::binary_semaphore.
1745 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
1746 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
1747 New data members for symchronization with stop_callback destruction.
1748 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
1749 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
1751 (stop_token::_Stop_cb::_M_run): New member function.
1752 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
1754 (stop_token::_Stop_state::_M_owners): New data member to track
1755 reference count for ownership.
1756 (stop_token::_Stop_state::_M_value): New data member combining a
1757 spinlock, the stop requested flag, and the reference count for
1758 associated stop_source objects.
1759 (stop_token::_Stop_state::_M_requester): New data member for
1760 synchronization with stop_callback destruction.
1761 (stop_token::_Stop_state::_M_stop_possible()): New member function.
1762 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
1764 (stop_token::_Stop_state::_M_add_owner)
1765 (stop_token::_Stop_state::_M_release_ownership)
1766 (stop_token::_Stop_state::_M_add_ssrc)
1767 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
1768 updating reference counts.
1769 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
1770 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
1771 (stop_token::_Stop_state::_M_try_lock)
1772 (stop_token::_Stop_state::_M_try_lock_and_stop)
1773 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
1775 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
1776 read and update state. Release lock while running callbacks. Use new
1777 data members to synchronize with callback destruction.
1778 (stop_token::_Stop_state::_M_remove_callback): Likewise.
1779 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
1780 to read and update state.
1781 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
1782 replacing shared_ptr.
1783 (stop_source::stop_source(const stop_source&)): Update reference count.
1784 (stop_source::operator=(const stop_source&)): Likewise.
1785 (stop_source::~stop_source()): Likewise.
1786 (stop_source::stop_source(stop_source&&)): Define as defaulted.
1787 (stop_source::operator=(stop_source&&)): Establish postcondition on
1789 (stop_callback): Enforce preconditions on template parameter. Replace
1790 base class with data member of new _Cb_impl type.
1791 (stop_callback::stop_callback(const stop_token&, Cb&&))
1792 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
1793 (stop_callback::_Cb_impl): New type wrapping _Callback member and
1794 defining the _S_execute member function.
1795 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
1797 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
1798 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
1799 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
1801 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
1803 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
1804 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
1805 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
1808 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
1809 three_way_comparable_with.
1810 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
1811 (compare_three_way::operator()): Remove redundant constraint from
1813 (__detail::_Synth3way::operator()): Use three_way_comparable_with
1814 instead of workaround.
1815 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
1816 output due to simplified constraints on compare_three_way::operator().
1819 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
1820 * testsuite/18_support/comparisons/object/93479.cc: New test.
1822 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
1823 returns the same type as test_range::begin(). Add comments.
1824 * testsuite/std/ranges/access/rbegin.cc: Likewise.
1825 * testsuite/std/ranges/access/rend.cc: Likewise.
1826 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
1827 test_range is the same as its iterator type.
1828 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
1829 operator- overloads to satisfy sized_sentinel_for when the iterator
1830 satisfies random_access_iterator.
1832 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
1835 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
1836 static assertion to object types.
1839 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
1840 clock_gettime instead of explicit glibc version check.
1841 * configure: Regenerate.
1843 2020-01-28 Martin Liska <mliska@suse.cz>
1846 * include/std/atomic: Fix typo.
1847 * include/std/optional: Likewise.
1849 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
1851 * configure: Regenerate.
1853 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
1856 * include/std/span (span): Fix deduction guide.
1857 * testsuite/23_containers/span/deduction.cc: New test.
1859 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
1861 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
1862 (__cmp_cat::_Ord::equivalent): Add enumerator.
1863 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
1865 (partial_ordering, weak_ordering, strong_ordering): Remove
1866 constructors taking __cmp_cat::_Eq parameters. Use renamed
1869 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
1871 * acinclude.m4: Handle `--with-toolexeclibdir='.
1872 * Makefile.in: Regenerate.
1873 * aclocal.m4: Regenerate.
1874 * configure: Regenerate.
1875 * doc/Makefile.in: Regenerate.
1876 * include/Makefile.in: Regenerate.
1877 * libsupc++/Makefile.in: Regenerate.
1878 * po/Makefile.in: Regenerate.
1879 * python/Makefile.in: Regenerate.
1880 * src/Makefile.in: Regenerate.
1881 * src/c++11/Makefile.in: Regenerate.
1882 * src/c++17/Makefile.in: Regenerate.
1883 * src/c++98/Makefile.in: Regenerate.
1884 * src/filesystem/Makefile.in: Regenerate.
1885 * testsuite/Makefile.in: Regenerate.
1887 2020-01-23 Alexandre Oliva <oliva@adacore.com>
1889 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
1890 * configure: Rebuild.
1892 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
1894 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
1897 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
1899 * include/Makefile.in: Regenerate.
1901 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
1903 * doc/xml/faq.xml: Fix grammar.
1904 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
1905 * doc/xml/manual/spine.xml: Update copyright years.
1906 * doc/html/*: Regenerate.
1908 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
1910 * doc/xml/faq.xml: Update for SVN -> Git transition.
1911 * doc/xml/manual/appendix_contributing.xml: Likewise.
1912 * doc/xml/manual/status_cxx1998.xml: Likewise.
1913 * doc/xml/manual/status_cxx2011.xml: Likewise.
1914 * doc/xml/manual/status_cxx2014.xml: Likewise.
1915 * doc/xml/manual/status_cxx2017.xml: Likewise.
1916 * doc/xml/manual/status_cxx2020.xml: Likewise.
1917 * doc/xml/manual/status_cxxtr1.xml: Likewise.
1918 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
1920 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
1922 * include/Makefile.am: Add coroutine to the std set.
1923 * include/Makefile.in: Regenerated.
1924 * include/std/coroutine: New file.
1926 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
1929 * include/bits/c++config: Only do PSTL config when the header is
1930 present, to fix freestanding.
1931 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
1932 functions if they were detected by configure.
1934 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
1935 Matthew Bauer <mjbauer95@gmail.com>
1936 Jonathan Wakely <jwakely@redhat.com>
1938 PR bootstrap/64271 (partial)
1939 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
1941 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
1942 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
1943 definitions with NetBSD upstream.
1944 (ctype_base::blank): Use _CTYPE_BL.
1945 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
1947 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
1948 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
1949 parameters to unsigned char.
1950 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
1952 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
1955 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
1956 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
1957 (_Equality_base): Remove.
1958 (_Equality<>::_M_equal): Review implementation. Use
1959 std::is_permutation.
1960 * testsuite/23_containers/unordered_multiset/operators/1.cc
1961 (Hash, Equal, test02, test03): New.
1962 * testsuite/23_containers/unordered_set/operators/1.cc
1963 (Hash, Equal, test02, test03): New.
1965 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
1968 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
1969 Move here from <bits/range_access.h> and define using __int128 when
1971 (__is_integer_like, __is_signed_integer_like): Move here from
1972 <bits/range_access.h>.
1973 (weakly_incrementable): Use __is_signed_integer_like.
1974 * include/bits/range_access.h (__max_diff_type, __max_size_type)
1975 (__is_integer_like, __is_signed_integer_like): Move to
1976 <bits/iterator_concepts.h>.
1977 (__make_unsigned_like_t): Move here from <ranges>.
1978 * include/std/ranges (__make_unsigned_like_t): Move to
1979 <bits/range_access.h>.
1980 (iota_view): Replace using-directive with using-declarations.
1981 * testsuite/std/ranges/iota/93267.cc: New test.
1982 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
1984 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
1987 * include/bits/fs_path.h (path::generic_string<C,A>)
1988 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
1989 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
1990 root-dir is converted to forward slash in generic pathname.
1991 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
1992 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
1995 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
1997 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
1998 (__atomic_float): Add default member initializer for C++20.
1999 * include/std/atomic (atomic): Likewise.
2000 (atomic::atomic()): Remove noexcept-specifier on default constructor.
2001 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
2002 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
2004 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
2005 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
2006 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
2007 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
2008 expected result for is_trivially_default_constructible.
2009 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
2010 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
2011 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
2012 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
2013 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
2014 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
2015 expected results for is_trivially_default_constructible.
2016 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
2019 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
2021 * testsuite/util/testsuite_iterators.h: Improve comment.
2023 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
2024 initialization syntax.
2027 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
2028 of base class independent of __cplusplus value.
2029 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
2030 type defined in the base class
2031 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
2032 * testsuite/24_iterators/istreambuf_iterator/requirements/
2033 base_classes.cc: Adjust expected base class for C++98.
2035 2020-01-09 Olivier Hainque <hainque@adacore.com>
2037 * doc/xml/manual/appendix_contributing.xml: Document _C2
2038 as a reserved identifier, by VxWorks.
2039 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
2040 * include/bits/stl_multimap.h: Likewise.
2042 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2044 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
2045 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
2046 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
2047 partial specialization to disambiguate the two constrained
2050 * include/experimental/type_traits (experimental::is_pod_v): Disable
2051 -Wdeprecated-declarations warnings around reference to std::is_pod.
2052 * include/std/type_traits (is_pod_v): Likewise.
2053 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
2054 is_standard_layout and is_trivial. Do not check is_pod for C++20.
2055 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
2056 Add -Wno-deprecated for C++20.
2057 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
2058 * testsuite/20_util/is_pod/value.cc: Likewise.
2059 * testsuite/experimental/type_traits/value.cc: Likewise.
2061 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
2063 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
2064 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
2065 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
2067 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
2070 * include/bits/random.h (operator>>): Check stream operation succeeds.
2071 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
2073 (operator>>): Remove redundant __istream_type typedefs. Check stream
2075 (__extract_params): New function to fill a vector from a stream.
2076 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
2079 * config/abi/pre/gnu.ver: Add new exports.
2080 * include/std/memory_resource (memory_resource::~memory_resource()):
2081 Do not define inline.
2082 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
2083 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
2085 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
2086 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
2088 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
2091 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
2093 (_Hashtable<>::__fwd_value_for): New.
2094 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
2096 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
2097 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
2098 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
2100 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
2101 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
2103 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
2105 * testsuite/23_containers/unordered_set/92124.cc: New.
2107 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
2110 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
2111 detailed error reporting for remove_all. Check result of recursive
2112 call before incrementing iterator.
2113 (remove_all(const path&), remove_all(const path&, error_code&)): Use
2115 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
2116 result of recursive call before incrementing iterator.
2117 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
2118 are reported correctly.
2119 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
2121 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
2123 * include/std/condition_variable
2124 (condition_variable_any::wait_on): Rename to match current draft
2126 (condition_variable_any::wait_on_until): Likewise.
2127 (condition_variable_any::wait_on_for): Likewise.
2128 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
2129 Adjust tests to account for renamed methods.
2131 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
2134 * include/bits/stl_tree.h
2135 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
2136 std::move_if_noexcept by std::move.
2137 * testsuite/23_containers/map/92124.cc: New.
2138 * testsuite/23_containers/set/92124.cc: New.
2140 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
2142 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
2143 (stop_source): Likewise (LWG 3362).
2144 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
2147 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
2148 (lexicographical_compare_three_way): Do not depend on
2150 * include/std/version (__cpp_lib_three_way_comparison): Only define
2151 when __cpp_lib_concepts is defined.
2152 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
2154 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
2156 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
2157 Only define four-argument overload when __cpp_lib_concepts is defined.
2159 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
2161 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
2163 2020-01-01 Jakub Jelinek <jakub@redhat.com>
2165 Update copyright years.
2167 Copyright (C) 2020 Free Software Foundation, Inc.
2169 Copying and distribution of this file, with or without modification,
2170 are permitted in any medium without royalty provided the copyright
2171 notice and this notice are preserved.