1 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
3 Library-side tests for parenthesized aggregate init
8 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
9 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
10 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
11 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
12 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
13 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
14 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
15 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
16 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
18 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
19 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
20 * testsuite/20_util/variant/92878_92947.cc: Likewise.
21 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
23 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
25 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
27 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
29 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
31 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
33 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
34 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
35 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
37 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
38 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
40 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
42 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
44 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
46 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
49 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
51 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
52 for changes due to parenthesized aggregate-initialization in C++20.
53 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
54 with std::chrono::sys_time in C++20.
56 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
57 to constrain C++20 versions of comparison operators. Fix backwards
58 logic of relational operators.
59 (move_iterator): Use requires-clause to constrain comparison operators
60 in C++20. Do not declare non-standard same-type overloads for C++20.
61 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
62 of comparisons and check using greedy_ops type.
63 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
64 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
65 main function from compile-only test.
66 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
68 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
70 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
71 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
72 C++20 concepts are required.
73 * include/bits/stl_iterator_base_types.h: Likewise.
74 * include/std/concepts: Likewise.
75 * include/std/version: Likewise.
76 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
79 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
80 (reverse_iterator::iterator_category): Define for C++20.
81 (reverse_iterator): Define comparison operators correctly for C++20.
82 (__normal_iterator): Add constraints to comparison operators for C++20.
83 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
84 overload for input iterators.
85 (move_iterator): Add constraints to comparison operators for C++20.
86 Define operator<=> for C++20.
87 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
88 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
89 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
90 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
92 * include/bits/iterator_concepts.h (__detail::__decay_copy)
93 (__detail::__member_begin, __detail::__adl_begin): Move here from
94 <bits/range_access.h>.
95 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
96 * bits/range_access.h (__cust_access::__decay_copy)
97 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
98 <bits/iterator_concepts.h>.
99 (ranges::iterator_t): Use __detail::__range_iter_t.
100 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
101 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
102 (front_insert_iterator): Likewise.
103 (insert_iterator): Implement changes from P0896R4 for C++20.
104 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
105 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
106 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
107 for inclusion in synopsis_c++20.cc which expects different signatures
108 for some function templates.
109 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
111 * include/std/type_traits (__is_array_convertible): Move definition
112 to immediately after is_convertible.
114 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
116 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
117 (chrono::months, chrono::sys_days, chrono::local_t)
118 (chrono::local_time, chrono::local_seconds, chrono::local_days):
120 (chrono::time_point): Add missing static assert.
121 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
122 * testsuite/std/time/clock/file/overview.cc: New test.
123 * testsuite/std/time/clock/file/members.cc: New test.
124 * testsuite/std/time/syn_c++20.cc: New test.
126 2020-03-25 Mike Crowe <mac@mcrowe.com>
128 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
130 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
133 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
135 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
136 * include/std/chrono (filesystem::__file_clock): Here.
137 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
138 Define public member functions for C++20.
139 (is_clock, is_clock_v): Define traits for C++20.
140 * include/std/condition_variable (condition_variable::wait_until): Add
141 check for valid clock.
142 * include/std/future (_State_baseV2::wait_until): Likewise.
143 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
144 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
146 * include/std/thread (this_thread::sleep_until): Likewise.
147 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
148 slow_clock with new namespace.
149 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
151 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
153 * testsuite/30_threads/future/members/clock_neg.cc: New test.
154 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
155 Qualify slow_clock with new namespace.
156 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
157 clock_neg.cc: New test.
158 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
160 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
161 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
163 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
164 slow_clock with new namespace.
165 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
166 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
168 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
169 * testsuite/std/time/traits/is_clock.cc: New test.
170 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
173 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
176 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
177 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
178 Improve test coverage.
181 * include/bits/fs_path.h (path::_S_str_convert): Replace first
182 parameter with basic_string_view so that strings with different
183 allocators can be accepted.
184 (path::generic_string<C,T,A>()): Use basic_string object that uses the
185 right allocator type.
186 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
187 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
190 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
193 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
194 (__is_nt_default_constructible_impl): Remove.
195 (__is_nothrow_default_constructible_impl): Remove.
196 (__is_nt_constructible_impl): Add bool template parameter. Adjust
197 partial specializations.
198 (__is_nothrow_constructible_impl): Replace class template with alias
200 (is_nothrow_default_constructible): Derive from alias template
201 __is_nothrow_constructible_impl instead of
202 __is_nothrow_default_constructible_impl.
203 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
205 * include/std/stop_token (stop_token::_Stop_state_ref): Define
206 comparison operators explicitly if the compiler won't synthesize them.
208 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
209 __cpp_lib_concepts before using iter_reference_t.
210 * include/bits/stream_iterator.h (istream_iterator): Check
211 __cpp_lib_concepts before using default_sentinel_t.
212 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
215 * include/experimental/executor (executor::executor(Executor)): Call
216 make_shared directly instead of _M_create. Create _Tgt1 object.
217 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
218 Call allocate_shared directly instead of _M_create. Create _Tgt2
220 (executor::target_type): Add cast needed for new _Tgt interface.
221 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
222 (executor::_Tgt): Define the same interface whether RTTI is enabled or
224 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
225 std::type_info in the interface.
226 (executor::_Tgt::_M_func): Add data member.
227 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
228 (executor::_Tgt1::_S_func): Define function to access target without
230 (executor::_M_create): Remove.
231 (operator==, operator!=): Simplify comparisons for executor.
232 * include/experimental/socket (is_error_code_enum<socket_errc>):
233 Define specialization before use.
234 * testsuite/experimental/net/executor/1.cc: New test.
236 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
239 * include/experimental/executor (service_already_exists): Add default
240 constructor. Declare make_service to be a friend.
241 * testsuite/experimental/net/execution_context/make_service.cc: New
244 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
246 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
247 a null pointer to functions with nonnull(1) attribute.
249 2020-03-11 Patrick Palka <ppalka@redhat.com>
251 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
252 'address' -> 'std::__addressof'.
253 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
254 a non-forward input_range.
255 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
256 default constructor protected instead of deleted, like with
257 input_iterator_wrapper.
258 (test_range::iterator): Add comment explaining that this type is used
259 only when the underlying wrapper is input_iterator_wrapper or
260 output_iterator_wrapper. Remove delegating defaulted constructor so
261 that the inherited default constructor is used instead.
263 LWG 3286 ranges::size is not required to be valid after a call to
264 ranges::begin on an input range
265 * include/std/ranges (subrange::subrange): Split single-argument
266 constructor into two, one constrained by _S_store_size and another by
268 (take_view::begin): Call size() before calling ranges::begin(_M_base).
269 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
270 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
272 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
274 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
275 instead of _M_current.
276 (split_view::_OuterIter::operator++): Likewise.
278 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
279 (transform_view::_Iterator::operator*): Add noexcept-specifier.
280 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
281 (split_view::_OuterIter::__current): Add noexcept.
282 (split_view::_InnerIter::__iter_swap): Remove.
283 (split_view::_InnerIter::__iter_move): Remove.
284 (split_view::_InnerIter::_M_i_current): New accessors.
285 (split_view::_InnerIter::__at_end): Use _M_i_current().
286 (split_view::_InnerIter::operator*): Likewise.
287 (split_view::_InnerIter::operator++): Likewise.
288 (iter_move(const _InnerIter&)): Likewise.
289 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
290 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
291 for iter_move and iter_swap on split_view's inner iterator.
294 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
295 Change expression in noexcept-specifier to match function body.
297 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
298 comment explaining multiple dg-do directives.
299 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
300 so test is run as well as compiled.
302 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
305 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
306 handle concatenations that change the type of the first component.
307 (path::operator+=(basic_string_view<value_type>)): Likewise.
308 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
310 2020-03-06 Patrick Palka <ppalka@redhat.com>
312 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
313 join_view::_Sentinel<!_Const>.
314 * testsuite/std/ranges/adaptors/join.cc: Augment test.
317 * include/bits/range_access.h (__cust_access::_Empty::operator()):
318 Declare return type to be bool instead of auto.
319 * testsuite/std/ranges/adaptors/93978.cc: New test.
321 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
324 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
325 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
326 second argument to __glibcxx_rwlock_init.
327 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
330 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
331 test to not fail due to PR 94063.
332 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
333 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
335 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
337 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
340 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
342 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
343 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
344 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
345 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
346 for return value, and in comparison.
347 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
350 * include/std/string_view: Include <bits/ostream_insert.h>.
351 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
353 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
355 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
357 2020-03-04 Patrick Palka <ppalka@redhat.com>
360 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
361 condition for when to use memset, making sure to additionally check that
362 the output pointer's value type is a non-volatile byte type. Instead of
363 requiring that the fill type is a byte type, just require that it's an
365 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
367 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
369 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
371 * testsuite/25_algorithms/fill/94017.cc: New test.
372 * testsuite/25_algorithms/fill_n/94017.cc: New test.
374 LWG 3355 The memory algorithms should support move-only input iterators
376 * include/bits/ranges_uninitialized.h
377 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
378 to copy __ifirst, which could be a move-only input iterator. Use
379 operator- instead of ranges::distance to compute distance from a sized
381 (__uninitialized_copy_n_fn::operator()): Likewise.
382 (__uninitialized_move_fn::operator()): Likewise.
383 (__uninitialized_move_n_fn::operator()): Likewise.
384 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
385 attempting to copy __first.
386 (__uninitialized_destroy_n_fn::operator()): Likewise.
387 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
389 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
391 * .../specialized_algorithms/uninitialized_move/constrained.cc:
394 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
395 protected instead of private.
396 (test_sized_range_sized_sent): New.
398 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
399 New testsuite iterator.
400 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
401 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
403 * include/bits/ranges_uninitialized.h
404 (uninitialized_copy_fn::operator()): Pass a reference type as the first
405 argument to is_nothrow_assignable_v.
406 (uninitialized_copy_fn::operator()): Likewise.
407 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
408 with the input iterator stripped of its move_iterator.
409 (uninitialized_move_n_fn::operator()): Likewise.
410 (uninitialized_fill_fn::operator()): Pass a reference type as the first
411 argument to is_nothrow_assignable_v.
412 (uninitialized_fill_n_fn::operator()): Likewise.
414 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
417 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
418 traits to control when to use memmove and memcmp optimizations.
419 (__is_nonvolatile_trivially_copyable): New helper trait.
420 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
421 use memcmp optimization with volatile data.
422 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
423 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
424 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
425 (__copy_move_backward_a2): Likewise.
426 (__equal_aux1): Use __memcmpable.
427 (__lexicographical_compare_aux): Do not use memcmp optimization with
429 * testsuite/25_algorithms/copy/94013.cc: New test.
430 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
431 * testsuite/25_algorithms/equal/94013.cc: New test.
432 * testsuite/25_algorithms/fill/94013.cc: New test.
433 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
434 * testsuite/25_algorithms/move/94013.cc: New test.
435 * testsuite/25_algorithms/move_backward/94013.cc: New test.
437 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
438 Avoid redundant iterator comparisons (LWG 3410).
440 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
443 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
445 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
447 * include/std/ranges (__detail::__maybe_empty_t): Rename to
449 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
451 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
454 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
456 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
458 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
460 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
461 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
462 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
463 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
464 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
466 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
467 Add libatomic option.
468 * testsuite/30_threads/jthread/jthread.cc: Likewise.
470 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
472 * include/bits/stl_algo.h
473 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
474 * include/bits/stl_algobase.h: ...here.
475 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
477 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
479 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
481 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
483 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
484 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
485 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
486 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
487 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
488 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
489 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
493 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
495 2020-02-28 Patrick Palka <ppalka@redhat.com>
498 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
499 Fix condition for when to use memcmp, making it consistent with the
500 corresponding condition used in std::lexicographical_compare.
501 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
503 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
504 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
505 existing signatures for C++2a.
507 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
509 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
510 test instead of just compiling it.
512 2020-02-28 Patrick Palka <ppalka@redhat.com>
514 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
515 whenever the underlying range models common_range.
517 * include/std/ranges (__detail::_CachedPosition): New struct.
518 (views::filter_view::_S_needs_cached_begin): New member variable.
519 (views::filter_view::_M_cached_begin): New member variable.
520 (views::filter_view::begin): Use _M_cached_begin to cache its
522 (views::drop_view::_S_needs_cached_begin): New static member variable.
523 (views::drop_view::_M_cached_begin): New member variable.
524 (views::drop_view::begin): Use _M_cached_begin to cache its result
525 when _S_needs_cached_begin.
526 (views::drop_while_view::_M_cached_begin): New member variable.
527 (views::drop_while_view::begin): Use _M_cached_begin to cache its
529 (views::reverse_view::_S_needs_cached_begin): New static member
531 (views::reverse_view::_M_cached_begin): New member variable.
532 (views::reverse_view::begin): Use _M_cached_begin to cache its result
533 when _S_needs_cached_begin.
534 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
535 drop_view::begin caches its result.
536 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
537 that drop_while_view::begin caches its result.
538 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
539 filter_view::begin caches its result.
540 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
541 reverse_view::begin caches its result.
543 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
545 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
546 filesystems that silently truncate timestamps.
547 * testsuite/experimental/filesystem/operations/last_write_time.cc:
550 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
551 -Wstringop-overflow warnings.
553 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
555 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
556 -fdiagnostics-urls=never to options.
558 2020-02-27 Patrick Palka <ppalka@redhat.com>
560 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
562 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
563 (take_view::_Sentinel<_Const>): Likewise.
564 (take_while_view::_Sentinel<_Const>): Likewise.
565 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
566 * testsuite/std/ranges/adaptors/split.cc: Augment test.
567 * testsuite/std/ranges/adaptors/take.cc: Augment test.
568 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
569 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
571 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
572 base() of a vector<>::iterator is a pointer.
573 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
574 * testsuite/25_algorithms/move/constrained.cc: Likewise.
575 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
576 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
578 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
579 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
580 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
581 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
582 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
584 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
586 * include/debug/array (operator<=>): Define for C++20.
587 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
588 Adjust dg-error line numbers.
589 * testsuite/23_containers/array/tuple_interface/
590 tuple_element_debug_neg.cc: Likewise.
592 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
593 defining _GLIBCXX_ASSERTIONS.
594 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
595 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
596 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
597 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
598 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
599 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
600 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
601 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
602 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
603 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
604 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
605 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
607 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
608 C++98 where the member function of the base class returns void.
610 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
611 equality comparisons that support value-initialized iterators.
613 * include/bits/boost_concept_check.h (__function_requires): Add
614 _GLIBCXX14_CONSTEXPR.
615 * testsuite/25_algorithms/min/concept_checks.cc: New test.
617 2020-02-26 Patrick Palka <ppalka@redhat.com>
620 * include/std/ranges (split_view::_InnerIter::operator==): Compare
621 the operands' _M_i rather than their _M_i.current().
622 * testsuite/std/ranges/adaptors/split.cc: Augment test.
624 P1645R1 constexpr for <numeric> algorithms
625 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
626 partial_sum, adjacent_difference): Make conditionally constexpr for
628 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
630 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
631 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
633 * include/std/version (__cpp_lib_constexpr_numeric): Define.
634 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
635 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
636 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
637 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
638 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
639 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
640 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
641 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
642 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
643 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
644 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
646 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
648 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
649 variables in smaller scope and avoid calling ranges::distance when we
650 know they are pointers. Remove statically-unreachable use of
651 __builtin_unreachable().
652 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
655 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
657 (__detail::__maybe_const_t): Likewise.
658 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
659 (transform_view, take_view, take_while_view, elements_view): Use
661 (join_view, split_view): Use both.
663 2020-02-25 Patrick Palka <ppalka@redhat.com>
665 LWG 3397 basic_istream_view::iterator should not provide
667 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
669 (basic_istream_view:_Iterator::iterator_concept): ... this.
670 * testsuite/std/ranges/istream_view.cc: Augment test.
672 LWG 3325 Constrain return type of transformation function for
674 * include/std/ranges (transform_view): Constrain the return type of the
675 transformation function as per LWG 3325.
676 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
678 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
679 * include/std/ranges (join_view::_Iterator::operator--): Require that
680 range_reference_t<_Base> models common_range.
681 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
683 LWG 3301 transform_view::_Iterator has incorrect iterator_category
684 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
685 determination of iterator_category as per LWG 3301.
686 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
688 LWG 3292 iota_view is under-constrained
689 * include/std/ranges (iota_view): Require that _Winc models semiregular
691 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
693 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
695 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
696 during constant evaluation. Call __builtin_memmove directly instead of
698 (__copy_or_move_backward): Likewise.
699 * include/bits/stl_algobase.h (__memmove): Remove.
700 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
701 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
702 Use __builtin_memmove directly instead of __memmove.
703 (__copy_move_a2): Do not use memmove during constant evaluation.
704 (__copy_move_backward_a2): Use _IsMove constant to select correct
705 __copy_move_backward specialization.
706 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
707 begin turned into moves during constant evaluation.
709 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
713 * include/bits/stl_algobase.h (__memmove): Cast away const before
714 doing move assignment.
715 * testsuite/25_algorithms/move/93872.cc: New test.
716 * testsuite/25_algorithms/move_backward/93872.cc: New test.
718 2020-02-24 Patrick Palka <ppalka@redhat.com>
721 * include/bits/ranges_algobase.h (__copy_or_move,
722 __copy_or_move_backward): Don't inspect the iter_value_t of the output
723 iterator, instead inspect its iterator_traits directly.
724 * include/bits/stl_iterator.h (back_insert_iterator::container):
725 Conditionally initialize.
726 (back_insert_iterator::difference_type): Conditionally define.
727 (back_insert_iterator::back_insert_iterator): Conditionally define this
729 (front_insert_iterator::container): Conditionally initialize.
730 (front_insert_iterator::difference_type): Conditionally define.
731 (front_insert_iterator::front_insert_iterator): Conditionally define
732 this default constructor.
733 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
734 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
736 P0769R2 Add shift to <algorithm>
737 * include/bits/ranges_algo.h (shift_left, shift_right): New.
738 * testsuite/25_algorithms/shift_left/1.cc: New test.
739 * testsuite/25_algorithms/shift_right/1.cc: New test.
741 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
743 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
744 Make noexcept-specifier conditional.
745 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
748 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
750 (operator==(istream_iterator, default_sentinel_t)): Add operator.
751 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
752 * include/bits/streambuf_iterator.h
753 (istreambuf_iterator(default_sentinel_t)): Add constructor.
754 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
755 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
757 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
758 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
760 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
762 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
763 (ranges::enable_view): Simplify (LWG 3326).
764 * include/bits/range_access.h (ranges::enable_view): Declare.
765 * include/bits/regex.h (__enable_view_impl): Remove partial
767 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
768 * include/bits/stl_set.h (__enable_view_impl): Likewise.
769 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
770 * include/debug/multiset.h (__enable_view_impl): Likewise.
771 * include/debug/set.h (__enable_view_impl): Likewise.
772 * include/debug/unordered_set (__enable_view_impl): Likewise.
773 * include/experimental/string_view (ranges::enable_view): Define
774 partial specialization.
775 * include/std/span (ranges::enable_view): Likewise.
776 * include/std/string_view (ranges::enable_view): Likewise.
777 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
779 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
781 * include/std/optional (operator<=>(optional<T>, optional<U>))
782 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
784 * include/std/tuple (__tuple_cmp): New helper function for <=>.
785 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
786 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
787 (operator<=>(monostate, monostate)): Define for C++20.
788 * testsuite/20_util/optional/relops/three_way.cc: New test.
789 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
790 * testsuite/20_util/variant/89851.cc: Move to ...
791 * testsuite/20_util/variant/relops/89851.cc: ... here.
792 * testsuite/20_util/variant/90008.cc: Move to ...
793 * testsuite/20_util/variant/relops/90008.cc: ... here.
794 * testsuite/20_util/variant/relops/three_way.cc: New test.
796 2020-02-20 Patrick Palka <ppalka@redhat.com>
798 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
800 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
801 __maybe_refwrap to capture lvalue references by reference, and then use
802 unwrap_reference_t to forward the by-reference captures as references.
803 * testsuite/std/ranges/adaptors/split.cc: Augment test.
804 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
806 * include/std/ranges (iota_view): Forward declare _Sentinel.
807 (iota_view::_Iterator): Befriend _Sentinel.
808 (iota_view::_Sentinel::_M_equal): New member function.
809 (iota_view::_Sentinel::operator==): Use it.
810 (views::_Iota::operator()): Forward __f using the correct type.
811 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
812 with integers of different signedness, to appease iota_view's deduction
814 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
816 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
818 * include/bits/range_access.h (ranges::begin): Reject array of
820 (ranges::end, ranges::size): Require arrays to be bounded.
821 (ranges::data): Require lvalue or borrowed_range.
822 (ranges::iterator_t): Remove constraint.
823 * testsuite/std/ranges/access/begin.cc: Do not check array of
825 * testsuite/std/ranges/access/begin_neg.cc: New test.
826 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
827 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
828 * testsuite/std/ranges/access/ssize.cc: Do not check array of
831 * include/std/system_error (error_category::operator<=>)
832 (operator<=>(const error_code&, const error_code&))
833 (operator<=>(const error_condition&, const error_condition&)): Define
835 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
836 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
838 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
840 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
841 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
843 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
844 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
846 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
847 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
848 Remove incorrect comment.
849 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
852 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
854 * include/std/thread (thread::id::operator<=>): Define for C++20.
855 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
856 functions in namespace std.
857 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
859 2020-02-19 Patrick Palka <ppalka@redhat.com>
861 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
862 null terminator of the underlying string as part of the test_range.
865 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
867 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
868 requirement (LWG 3385).
869 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
870 expected declaration.
872 * include/std/ranges (take_while_view, drop_view, drop_while_view)
873 (elements_view:_Iterator): Initialize data members (LWG 3364).
875 * libsupc++/compare (three_way_comparable): Remove always-false check
876 that should have been removed with weak_equality (P1959R0).
877 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
879 * include/std/concepts (__detail::__partially_ordered_with): Move here
881 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
882 to simplify definition (LWG 3331).
883 * libsupc++/compare (__detail::__partially_ordered_with): Move to
886 * include/std/concepts (totally_ordered_with): Remove redundant
887 requirement (LWG 3329).
889 * include/std/ranges (__detail::__convertible_to_non_slicing): New
891 (__detail::__pair_like_convertible_to): Remove.
892 (__detail::__pair_like_convertible_from): Add requirements for
893 non-slicing conversions.
894 (subrange): Constrain constructors with __convertible_to_non_slicing.
895 Remove constructors from pair-like types. Add new deduction guide.
896 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
898 * include/bits/iterator_concepts.h (iter_move): Add declaration to
899 prevent unqualified lookup finding a suitable declaration (LWG 3247).
901 * include/std/memory_resource (polymorphic_allocator::allocate)
902 (polymorphic_allocator::allocate_object): Change type of exception to
903 bad_array_new_length (LWG 3237).
904 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
906 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
907 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
908 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
909 * testsuite/20_util/unwrap_reference/3.cc: New test.
911 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
912 type during overload resolution, use static assert instead (LWG 3200).
913 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
915 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
917 * include/std/span (span(T (&)[N])): Use non-deduced context to
918 prevent first parameter from interfering with class template argument
919 deduction (LWG 3369).
920 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
921 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
924 * include/std/span (span::const_iterator, span::const_reverse_iterator)
925 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
927 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
929 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
931 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
932 constrained.cc: Likewise.
933 * testsuite/20_util/specialized_algorithms/
934 uninitialized_default_construct/constrained.cc: Likewise.
935 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
936 constrained.cc: Likewise.
937 * testsuite/20_util/specialized_algorithms/uninitialized_move/
938 constrained.cc: Likewise.
939 * testsuite/20_util/specialized_algorithms/
940 uninitialized_value_construct/constrained.cc: Likewise.
942 * include/bits/range_access.h (range_size_t): Define alias template.
943 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
944 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
946 * include/std/ranges (filter_view, transform_view, take_view)
947 (join_view, split_view, reverse_view): Remove commented-out converting
948 constructors (LWG 3280).
950 * include/std/memory (uninitialized_construct_using_allocator): Use
951 std::construct_at (LWG 3321).
953 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
954 (polymorphic_allocator::allocate_object)
955 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
957 LWG 3379. "safe" in several library names is misleading
958 * include/bits/range_access.h (enable_safe_range): Rename to
959 enable_borrowed_range.
960 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
961 (safe_range): Rename to borrowed_range.
962 * include/bits/ranges_algo.h: Adjust to use new names.
963 * include/bits/ranges_algobase.h: Likewise.
964 * include/bits/ranges_uninitialized.h: Likewise.
965 * include/std/ranges: Likewise.
966 (safe_iterator_t): Rename to borrowed_iterator_t.
967 (safe_subrange_t): Rename to borrowed_subrange_t.
968 * include/std/span: Adjust to use new names.
969 * include/std/string_view: Likewise.
970 * include/experimental/string_view: Likewise.
971 * testsuite/std/ranges/access/begin.cc: Likewise.
972 * testsuite/std/ranges/access/cbegin.cc: Likewise.
973 * testsuite/std/ranges/access/cdata.cc: Likewise.
974 * testsuite/std/ranges/access/cend.cc: Likewise.
975 * testsuite/std/ranges/access/crbegin.cc: Likewise.
976 * testsuite/std/ranges/access/crend.cc: Likewise.
977 * testsuite/std/ranges/access/data.cc: Likewise.
978 * testsuite/std/ranges/access/end.cc: Likewise.
979 * testsuite/std/ranges/access/rbegin.cc: Likewise.
980 * testsuite/std/ranges/access/rend.cc: Likewise.
981 * testsuite/std/ranges/safe_range.cc: Likewise.
982 * testsuite/std/ranges/safe_range_types.cc: Likewise.
983 * testsuite/util/testsuite_iterators.h: Likewise.
985 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
986 (tuple_element<1, const subrange<I, S, K>>): Add partial
987 specializations (LWG 3398).
988 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
990 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
991 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
992 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
994 2020-02-18 Patrick Palka <ppalka@redhat.com>
996 P1983R0 Wording for GB301, US296, US292, US291, and US283
997 * include/std/ranges (filter_view::pred): New member function.
998 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
999 P1983R0 fixes the highlighted issue in the same way.
1000 (join_view::_Iterator<_Const>): Add friend
1001 join_view::_Iterator<!_Const>.
1002 (join_view::_M_inner): Remove mutable specifier, effectively reverting
1003 the proposed wording changes of P3278.
1004 (join_view::begin): Refine the condition for when to return a const
1006 (split_view::_OuterIter::_OuterIter): Adjust constraints.
1007 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
1010 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
1013 * include/std/ranges (_RangeAdaptor): Add deduction guide.
1014 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
1016 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
1017 (transform_view::_Iterator): Add alias _Base_iter and use in place of
1019 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
1020 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
1021 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
1022 (split_view::_InnerIter::_S_iter_cat()): Likewise.
1024 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
1025 assumption that long is wider than int.
1026 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
1027 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
1028 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
1029 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
1031 P1976R2 Fixed-size span construction from dynamic range
1032 * include/std/span (__cpp_lib_span): Update value.
1033 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
1035 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
1037 (span::first<Count>(), span::last<Count>()): Use explicit type in
1039 (as_bytes, as_writable_bytes): Likewise.
1040 * include/std/version (__cpp_lib_span): Update value.
1041 * testsuite/23_containers/span/1.cc: Check new value.
1042 * testsuite/23_containers/span/2.cc: Check new value.
1043 * testsuite/23_containers/span/explicit.cc: New test.
1045 * include/std/span (span::__is_compatible_array): Simplify alias
1046 template by using requires-clause.
1047 (span::__is_compatible_ref): New alias template for constraining
1049 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
1050 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
1051 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
1052 redundant parentheses.
1053 (span(R&&)): Add missing constraints.
1055 * include/std/span (span): Reorder members and rename template
1056 parameters to match declarations in the C++2a working paper.
1058 P2116R0 Remove tuple-like protocol support from fixed-extent span
1059 * include/std/span (get, tuple_size, tuple_element): Remove.
1060 * testsuite/23_containers/span/everything.cc: Remove checks for
1062 * testsuite/23_containers/span/get_neg.cc: Remove.
1063 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
1064 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
1065 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
1067 2020-02-17 Patrick Palka <ppalka@redhat.com>
1069 P2106R0 Alternative wording for GB315 and GB316
1070 * include/bits/ranges_algo.h (in_fun_result): New.
1071 (for_each_result, for_each_n_result): Change into an alias of
1073 (in_in_result): New.
1074 (mismatch_result): Change into an alias of in_in_result.
1075 (copy_if_result): Change into an alias of in_out_result.
1076 (swap_ranges_result): Change into an alias of in_in_result.
1077 (unary_transform_result): Change into an alias of in_out_result.
1078 (in_in_out_result): New.
1079 (binary_transform_result): Change into an alias of in_in_out_result.
1080 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
1081 remove_copy_result, unique_copy_result, reverse_copy_result,
1082 rotate_copy_result, partial_sort_copy_result): Change into an alias of
1084 (in_out_out_result): New.
1085 (partition_copy_result, merge_result): Change into an alias of
1087 (set_union_result, set_intersection_result): Change into an alias of
1089 (set_difference_result): Change into an alias of in_out_result.
1090 (set_symmetric_difference): Change into an alias of in_in_out_result.
1091 (min_max_result): New.
1092 (minmax_result, minmax_element_result): Change into an alias of
1094 (in_found_result): New.
1095 (next_permutation_result, prev_permutation_result): Change into an alias
1097 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
1098 Adjust following changes to next_permutation_result and
1099 prev_permutation_result.
1100 * include/bits/ranges_algobase.h (in_out_result): New.
1101 (copy_result, move_result, move_backward_result, copy_backward_result,
1102 copy_n_result): Change into an alias of in_out_result.
1103 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
1104 uninitialized_copy_n_result, uninitialized_move_result,
1105 uninitialized_move_n_result): Likewise.
1106 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
1107 structured bindings.
1108 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
1110 P1243R4 Rangify new algorithms
1111 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
1112 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
1113 * testsuite/25_algorithms/clamp/constrained.cc: New test.
1114 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
1115 * testsuite/25_algorithms/sample/constrained.cc: New test.
1117 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
1119 P1964R2 Wording for boolean-testable
1120 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
1121 (__adjacent_find_fn): Cast result of predicate to bool.
1122 * include/std/concepts (__boolean): Remove.
1123 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
1124 new helper concepts.
1125 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
1126 (predicate): Use __boolean_testable instead of boolean.
1127 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
1130 P1970R2 Consistency for size() functions: Add ranges::ssize
1131 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
1132 * testsuite/std/ranges/access/ssize.cc: New test.
1134 P1956R1 On the names of low-level bit manipulation functions
1135 * include/bits/hashtable_policy.h: Update comment.
1136 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
1137 (ispow2, ceil2, floor2, log2p1): Likewise.
1138 (__cpp_lib_int_pow2): Add feature test macro.
1139 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
1140 * include/std/memory (assume_aligned): Adjust use of ispow2.
1141 * include/std/version (__cpp_lib_int_pow2): Add.
1142 * libsupc++/new_opa.cc: Adjust use of __ispow2.
1143 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
1144 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
1145 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
1146 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
1147 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
1148 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
1149 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
1150 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
1151 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
1152 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
1153 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
1154 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
1156 * include/std/charconv: Add comment.
1158 PR libstdc++/92546 (partial)
1159 * include/bits/random.h (uniform_random_bit_generator): Move definition
1160 to <bits/uniform_int_dist.h>.
1161 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
1163 * include/bits/ranges_algobase.h: Do not include <cmath>.
1164 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
1166 * include/std/ranges: Do not include <limits>.
1167 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1169 PR libstdc++/92546 (partial)
1170 * include/Makefile.am: Add new header.
1171 * include/Makefile.in: Regenerate.
1172 * include/bits/int_limits.h: New header.
1173 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
1174 numeric_limits with __detail::__int_limits.
1175 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
1176 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
1178 * include/std/charconv (__to_chars_8, __from_chars_binary)
1179 (__from_chars_alpha_to_num, from_chars): Likewise.
1180 * include/std/memory_resource (polymorphic_allocator::allocate)
1181 (polymorphic_allocator::allocate_object): Likewise.
1182 * include/std/string_view (basic_string_view::_S_compare): Likewise.
1183 * include/std/utility (in_range): Likewise.
1184 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
1185 extra error about incomplete type __int_limits<bool>.
1186 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
1187 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
1188 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
1189 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
1190 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
1191 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
1192 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
1193 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
1194 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
1195 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
1196 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
1197 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
1199 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
1200 value for partial_ordering::unordered.
1202 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
1203 const-qualified expression variations.
1204 * include/std/concepts (copyable): Likewise.
1206 * include/std/type_traits (__is_standard_integer): New helper trait.
1207 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
1208 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
1209 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
1210 * testsuite/20_util/integer_comparisons/1.cc: New test.
1211 * testsuite/20_util/integer_comparisons/2.cc: New test.
1212 * testsuite/20_util/integer_comparisons/equal.cc: New test.
1213 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
1214 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
1215 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
1216 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
1217 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
1218 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
1219 * testsuite/20_util/integer_comparisons/less.cc: New test.
1220 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
1221 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
1222 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
1223 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
1224 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
1226 2020-02-16 Patrick Palka <ppalka@redhat.com>
1228 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
1229 Move code after an early exit constexpr if to under an else branch.
1230 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
1232 2020-02-15 Patrick Palka <ppalka@redhat.com>
1234 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
1235 * include/bits/ranges_algobase.h: Likewise.
1236 * include/bits/ranges_uninitialized.h: Likewise.
1238 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
1239 binary_search, copy_if, count, count_if, equal_range, find, find_end,
1240 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
1241 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
1242 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
1243 lower_bound, make_heap, max, max_element, merge, min, min_element,
1244 minmax, minmax_element, mismatch, next_permutation, none_of,
1245 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
1246 partition_point, pop_heap, prev_permutation, push_heap, remove,
1247 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
1248 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
1249 search, search_n, set_difference, set_intersection,
1250 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
1251 stable_partition, stable_sort, swap_ranges, transform, unique,
1252 unique_copy, upper_bound): Convert into function objects.
1253 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
1254 fill, move_backward, copy_backward): Likewise.
1255 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
1256 uninitialized_default_construct_n, uninitialized_value_construct,
1257 uninitialized_value_construct_n, uninitialized_copy,
1258 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
1259 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
1260 destroy, destroy_n): Likewise.
1262 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
1263 (ranges::find_end): ... here.
1264 (ranges::__lexicographical_compare): Fold into ...
1265 (ranges::lexicographical_compare): ... here.
1266 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
1267 (ranges::equal): ... here.
1269 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
1271 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
1272 * include/std/deque: Likewise.
1273 * include/std/forward_list: Likewise.
1274 * include/std/list: Likewise.
1275 * include/std/string: Likewise.
1276 * include/std/vector: Likewise.
1277 * include/std/version: Likewise.
1278 * testsuite/23_containers/deque/erasure.cc: Test for new value.
1279 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
1280 * testsuite/23_containers/list/erasure.cc: Likewise.
1281 * testsuite/23_containers/map/erasure.cc: Likewise.
1282 * testsuite/23_containers/set/erasure.cc: Likewise.
1283 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
1284 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
1285 * testsuite/23_containers/vector/erasure.cc: Likewise.
1287 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
1289 * include/bits/random.h (uniform_random_bit_generator): Require min()
1290 and max() to be constant expressions and min() to be less than max().
1291 * testsuite/26_numerics/random/concept.cc: Check additional cases.
1292 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
1294 2020-02-13 Patrick Palka <ppalka@redhat.com>
1296 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
1297 * include/Makefile.in: Regenerate.
1298 * include/bits/ranges_uninitialized.h: New header.
1299 * include/std/memory: Include it.
1300 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
1302 * .../uninitialized_copy/constrained.cc: New test.
1303 * .../uninitialized_default_construct/constrained.cc: New test.
1304 * .../uninitialized_fill/constrained.cc: New test.
1305 * .../uninitialized_move/constrained.cc: New test.
1306 * .../uninitialized_value_construct/constrained.cc: New test.
1308 * include/Makefile.am: Add bits/ranges_algobase.h
1309 * include/Makefile.in: Regenerate.
1310 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
1312 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
1313 __detail::__is_move_iterator, copy_result, move_result,
1314 __equal, equal, copy_result, move_result, move_backward_result,
1315 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
1316 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
1317 fill): Split out into ...
1318 * bits/range_algobase.h: ... this new header.
1320 2020-02-12 Patrick Palka <ppalka@redhat.com>
1322 LWG 3389 and LWG 3390
1323 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
1324 constructing the move_iterator with __i.
1325 (counted_iterator::counted_iterator): Use std::move when initializing
1327 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
1328 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
1330 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
1335 * configure: Regenerated.
1337 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
1339 * include/bits/hashtable.h
1340 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
1341 missing std namespace qualification to forward call.
1343 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
1345 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
1347 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
1349 * include/std/ranges: Fix non-ASCII characters in comment.
1351 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
1352 equality comparison to be valid and return bool.
1353 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
1354 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
1355 type with ambiguous conversion to fundamental types.
1356 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
1358 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1360 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
1362 (readable_traits): Rename to indirectly_readable_traits.
1363 (readable): Rename to indirectly_readable.
1364 (writable): Rename to indirectly_writable.
1365 (__detail::__iter_exchange_move): Do not use remove_reference_t.
1366 (indirectly_swappable): Adjust requires expression parameter types.
1368 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
1369 (ranges::replace_if, ranges::generate_n, ranges::generate)
1370 (ranges::remove): Use new name for writable.
1371 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
1372 Use new name for readable.
1373 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
1374 new name for readable_traits.
1375 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
1376 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
1377 new definition of indirectly_readable.
1379 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
1380 to take parameters of common_iterator, instead of the common_iterator
1381 type itself. Fix argument for __common_iter_has_arrow constraint.
1382 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
1384 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1386 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
1388 (basic_istream_view::_Iterator::operator++()): Add missing return.
1390 2020-02-07 Patrick Palka <ppalka@redhat.com>
1392 * include/bits/ranges_algo.h: Remove extraneous &&.
1394 * include/std/ranges (ranges::__detail::__stream_extractable,
1395 ranges::basic_istream_view, ranges::istream_view): Define.
1396 * testsuite/std/ranges/istream_view: New test.
1398 Implement C++20 range adaptors
1399 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
1400 (subrange::_S_store_size): Mark as const instead of constexpr to
1401 avoid what seems to be a bug in GCC.
1402 (__detail::__box): Give it defaulted copy and move constructors.
1403 (ranges::views::_Single::operator()): Mark constexpr.
1404 (ranges::views::_Iota::operator()): Mark constexpr.
1405 (__detail::Empty): Define.
1406 (ranges::views::__closure::_RangeAdaptor,
1407 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
1408 ranges::views::all, ranges::__detail::find_if,
1409 ranges::__detail::find_if_not, ranges::__detail::mismatch,
1410 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
1411 ranges::views::transform, take_view, ranges::views::take,
1412 take_while_view, ranges::views::take_while, drop_view,
1413 ranges::views::drop, join_view, ranges::views::join,
1414 __detail::require_constant, __detail::tiny_range, split_view,
1415 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
1416 common_view, ranges::views::common, reverse_view,
1417 ranges::views::reverse,
1418 ranges::views::__detail::__is_reversible_subrange,
1419 ranges::views::__detail::__is_reverse_view, reverse_view,
1420 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
1421 ranges::views::elements, ranges::views::keys, ranges::views::values):
1423 (views): Alias for ranges::views.
1424 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
1425 tuple_element<1, ranges::subrange>): New partial specializations.
1426 * testsuite/std/ranges/adaptors/all.cc: New test.
1427 * testsuite/std/ranges/adaptors/common.cc: Likewise.
1428 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
1429 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
1430 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
1431 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
1432 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
1433 * testsuite/std/ranges/adaptors/join.cc: Likewise.
1434 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
1435 * testsuite/std/ranges/adaptors/split.cc: Likewise.
1436 * testsuite/std/ranges/adaptors/take.cc: Likewise.
1437 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
1438 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
1440 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
1442 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
1443 type of enumerations and comparison category types.
1444 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
1445 (__cmp_cat::_Ncmp::unordered): Change value to 2.
1446 (partial_ordering::_M_value, weak_ordering::_M_value)
1447 (strong_ordering::_M_value): Change type to __cmp_cat::type.
1448 (partial_ordering::_M_is_ordered): Remove data member.
1449 (partial_ordering): Use second bit of _M_value for unordered. Adjust
1450 comparison operators.
1451 (weak_ordering::operator partial_ordering): Simplify to remove
1453 (operator<=>(unspecified, weak_ordering)): Likewise.
1454 (strong_ordering::operator partial_ordering): Likewise.
1455 (strong_ordering::operator weak_ordering): Likewise.
1456 (operator<=>(unspecified, strong_ordering)): Likewise.
1457 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
1458 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
1459 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
1461 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
1462 __cpp_lib_three_way_comparison macro and use deduced return type for
1464 * testsuite/std/ranges/iota/iterator.cc: New test.
1466 2020-02-07 Patrick Palka <ppalka@redhat.com>
1467 Jonathan Wakely <jwakely@redhat.com>
1469 Implement C++20 constrained algorithms
1470 * include/Makefile.am: Add new header.
1471 * include/Makefile.in: Regenerate.
1472 * include/std/algorithm: Include <bits/ranges_algo.h>.
1473 * include/bits/ranges_algo.h: New file.
1474 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
1475 * testsuite/25_algorithms/all_of/constrained.cc: New test.
1476 * testsuite/25_algorithms/any_of/constrained.cc: New test.
1477 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
1478 * testsuite/25_algorithms/copy/constrained.cc: New test.
1479 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
1480 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
1481 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
1482 * testsuite/25_algorithms/count/constrained.cc: New test.
1483 * testsuite/25_algorithms/count_if/constrained.cc: New test.
1484 * testsuite/25_algorithms/equal/constrained.cc: New test.
1485 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
1486 * testsuite/25_algorithms/fill/constrained.cc: New test.
1487 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
1488 * testsuite/25_algorithms/find/constrained.cc: New test.
1489 * testsuite/25_algorithms/find_end/constrained.cc: New test.
1490 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
1491 * testsuite/25_algorithms/find_if/constrained.cc: New test.
1492 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
1493 * testsuite/25_algorithms/for_each/constrained.cc: New test.
1494 * testsuite/25_algorithms/generate/constrained.cc: New test.
1495 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
1496 * testsuite/25_algorithms/heap/constrained.cc: New test.
1497 * testsuite/25_algorithms/includes/constrained.cc: New test.
1498 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
1499 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
1500 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
1501 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
1502 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
1503 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
1505 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
1506 * testsuite/25_algorithms/max/constrained.cc: New test.
1507 * testsuite/25_algorithms/max_element/constrained.cc: New test.
1508 * testsuite/25_algorithms/merge/constrained.cc: New test.
1509 * testsuite/25_algorithms/min/constrained.cc: New test.
1510 * testsuite/25_algorithms/min_element/constrained.cc: New test.
1511 * testsuite/25_algorithms/minmax/constrained.cc: New test.
1512 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
1513 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
1514 * testsuite/25_algorithms/move/constrained.cc: New test.
1515 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
1516 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
1517 * testsuite/25_algorithms/none_of/constrained.cc: New test.
1518 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
1519 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
1520 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
1521 * testsuite/25_algorithms/partition/constrained.cc: New test.
1522 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
1523 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
1524 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
1525 * testsuite/25_algorithms/remove/constrained.cc: New test.
1526 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
1527 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
1528 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
1529 * testsuite/25_algorithms/replace/constrained.cc: New test.
1530 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
1531 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
1532 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
1533 * testsuite/25_algorithms/reverse/constrained.cc: New test.
1534 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
1535 * testsuite/25_algorithms/rotate/constrained.cc: New test.
1536 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
1537 * testsuite/25_algorithms/search/constrained.cc: New test.
1538 * testsuite/25_algorithms/search_n/constrained.cc: New test.
1539 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
1540 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
1541 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
1543 * testsuite/25_algorithms/set_union/constrained.cc: New test.
1544 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
1545 * testsuite/25_algorithms/sort/constrained.cc: New test.
1546 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
1547 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
1548 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
1549 * testsuite/25_algorithms/transform/constrained.cc: New test.
1550 * testsuite/25_algorithms/unique/constrained.cc: New test.
1551 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
1552 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
1554 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
1556 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
1557 number in comment. Fix indentation.
1559 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
1560 redundant _GLIBCXX20_CONSTEXPR.
1562 * include/std/ranges (viewable_range): Replace decay_t with
1563 remove_cvref_t (LWG 3375).
1565 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
1567 * include/bits/iterator_concepts.h (iter_reference_t)
1568 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
1569 Remove workarounds for PR c++/67704.
1570 * testsuite/24_iterators/aliases.cc: New test.
1572 2020-02-05 Patrick Palka <ppalka@redhat.com>
1574 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
1575 when initializing _M_current.
1576 (move_iterator::base): Split into two overloads differing in
1577 ref-qualifiers as in P1207R4 for C++20.
1579 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
1581 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
1585 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
1586 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
1587 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
1589 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
1591 * configure: Regenerate.
1593 2020-01-31 Patrick Palka <ppalka@redhat.com>
1595 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
1596 test_range::end() returns the same type as test_range::begin().
1597 * testsuite/24_iterators/range_operations/next.cc: Likewise.
1598 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
1599 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
1600 Always return a sentinel<I>.
1602 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
1605 * include/std/stop_token (stop_token::stop_possible()): Call new
1606 _M_stop_possible() function.
1607 (stop_token::stop_requested()): Do not use stop_possible().
1608 (stop_token::binary_semaphore): New class, as temporary stand-in for
1609 std::binary_semaphore.
1610 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
1611 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
1612 New data members for symchronization with stop_callback destruction.
1613 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
1614 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
1616 (stop_token::_Stop_cb::_M_run): New member function.
1617 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
1619 (stop_token::_Stop_state::_M_owners): New data member to track
1620 reference count for ownership.
1621 (stop_token::_Stop_state::_M_value): New data member combining a
1622 spinlock, the stop requested flag, and the reference count for
1623 associated stop_source objects.
1624 (stop_token::_Stop_state::_M_requester): New data member for
1625 synchronization with stop_callback destruction.
1626 (stop_token::_Stop_state::_M_stop_possible()): New member function.
1627 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
1629 (stop_token::_Stop_state::_M_add_owner)
1630 (stop_token::_Stop_state::_M_release_ownership)
1631 (stop_token::_Stop_state::_M_add_ssrc)
1632 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
1633 updating reference counts.
1634 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
1635 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
1636 (stop_token::_Stop_state::_M_try_lock)
1637 (stop_token::_Stop_state::_M_try_lock_and_stop)
1638 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
1640 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
1641 read and update state. Release lock while running callbacks. Use new
1642 data members to synchronize with callback destruction.
1643 (stop_token::_Stop_state::_M_remove_callback): Likewise.
1644 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
1645 to read and update state.
1646 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
1647 replacing shared_ptr.
1648 (stop_source::stop_source(const stop_source&)): Update reference count.
1649 (stop_source::operator=(const stop_source&)): Likewise.
1650 (stop_source::~stop_source()): Likewise.
1651 (stop_source::stop_source(stop_source&&)): Define as defaulted.
1652 (stop_source::operator=(stop_source&&)): Establish postcondition on
1654 (stop_callback): Enforce preconditions on template parameter. Replace
1655 base class with data member of new _Cb_impl type.
1656 (stop_callback::stop_callback(const stop_token&, Cb&&))
1657 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
1658 (stop_callback::_Cb_impl): New type wrapping _Callback member and
1659 defining the _S_execute member function.
1660 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
1662 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
1663 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
1664 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
1666 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
1668 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
1669 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
1670 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
1673 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
1674 three_way_comparable_with.
1675 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
1676 (compare_three_way::operator()): Remove redundant constraint from
1678 (__detail::_Synth3way::operator()): Use three_way_comparable_with
1679 instead of workaround.
1680 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
1681 output due to simplified constraints on compare_three_way::operator().
1684 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
1685 * testsuite/18_support/comparisons/object/93479.cc: New test.
1687 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
1688 returns the same type as test_range::begin(). Add comments.
1689 * testsuite/std/ranges/access/rbegin.cc: Likewise.
1690 * testsuite/std/ranges/access/rend.cc: Likewise.
1691 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
1692 test_range is the same as its iterator type.
1693 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
1694 operator- overloads to satisfy sized_sentinel_for when the iterator
1695 satisfies random_access_iterator.
1697 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
1700 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
1701 static assertion to object types.
1704 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
1705 clock_gettime instead of explicit glibc version check.
1706 * configure: Regenerate.
1708 2020-01-28 Martin Liska <mliska@suse.cz>
1711 * include/std/atomic: Fix typo.
1712 * include/std/optional: Likewise.
1714 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
1716 * configure: Regenerate.
1718 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
1721 * include/std/span (span): Fix deduction guide.
1722 * testsuite/23_containers/span/deduction.cc: New test.
1724 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
1726 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
1727 (__cmp_cat::_Ord::equivalent): Add enumerator.
1728 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
1730 (partial_ordering, weak_ordering, strong_ordering): Remove
1731 constructors taking __cmp_cat::_Eq parameters. Use renamed
1734 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
1736 * acinclude.m4: Handle `--with-toolexeclibdir='.
1737 * Makefile.in: Regenerate.
1738 * aclocal.m4: Regenerate.
1739 * configure: Regenerate.
1740 * doc/Makefile.in: Regenerate.
1741 * include/Makefile.in: Regenerate.
1742 * libsupc++/Makefile.in: Regenerate.
1743 * po/Makefile.in: Regenerate.
1744 * python/Makefile.in: Regenerate.
1745 * src/Makefile.in: Regenerate.
1746 * src/c++11/Makefile.in: Regenerate.
1747 * src/c++17/Makefile.in: Regenerate.
1748 * src/c++98/Makefile.in: Regenerate.
1749 * src/filesystem/Makefile.in: Regenerate.
1750 * testsuite/Makefile.in: Regenerate.
1752 2020-01-23 Alexandre Oliva <oliva@adacore.com>
1754 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
1755 * configure: Rebuild.
1757 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
1759 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
1762 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
1764 * include/Makefile.in: Regenerate.
1766 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
1768 * doc/xml/faq.xml: Fix grammar.
1769 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
1770 * doc/xml/manual/spine.xml: Update copyright years.
1771 * doc/html/*: Regenerate.
1773 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
1775 * doc/xml/faq.xml: Update for SVN -> Git transition.
1776 * doc/xml/manual/appendix_contributing.xml: Likewise.
1777 * doc/xml/manual/status_cxx1998.xml: Likewise.
1778 * doc/xml/manual/status_cxx2011.xml: Likewise.
1779 * doc/xml/manual/status_cxx2014.xml: Likewise.
1780 * doc/xml/manual/status_cxx2017.xml: Likewise.
1781 * doc/xml/manual/status_cxx2020.xml: Likewise.
1782 * doc/xml/manual/status_cxxtr1.xml: Likewise.
1783 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
1785 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
1787 * include/Makefile.am: Add coroutine to the std set.
1788 * include/Makefile.in: Regenerated.
1789 * include/std/coroutine: New file.
1791 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
1794 * include/bits/c++config: Only do PSTL config when the header is
1795 present, to fix freestanding.
1796 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
1797 functions if they were detected by configure.
1799 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
1800 Matthew Bauer <mjbauer95@gmail.com>
1801 Jonathan Wakely <jwakely@redhat.com>
1803 PR bootstrap/64271 (partial)
1804 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
1806 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
1807 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
1808 definitions with NetBSD upstream.
1809 (ctype_base::blank): Use _CTYPE_BL.
1810 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
1812 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
1813 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
1814 parameters to unsigned char.
1815 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
1817 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
1820 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
1821 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
1822 (_Equality_base): Remove.
1823 (_Equality<>::_M_equal): Review implementation. Use
1824 std::is_permutation.
1825 * testsuite/23_containers/unordered_multiset/operators/1.cc
1826 (Hash, Equal, test02, test03): New.
1827 * testsuite/23_containers/unordered_set/operators/1.cc
1828 (Hash, Equal, test02, test03): New.
1830 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
1833 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
1834 Move here from <bits/range_access.h> and define using __int128 when
1836 (__is_integer_like, __is_signed_integer_like): Move here from
1837 <bits/range_access.h>.
1838 (weakly_incrementable): Use __is_signed_integer_like.
1839 * include/bits/range_access.h (__max_diff_type, __max_size_type)
1840 (__is_integer_like, __is_signed_integer_like): Move to
1841 <bits/iterator_concepts.h>.
1842 (__make_unsigned_like_t): Move here from <ranges>.
1843 * include/std/ranges (__make_unsigned_like_t): Move to
1844 <bits/range_access.h>.
1845 (iota_view): Replace using-directive with using-declarations.
1846 * testsuite/std/ranges/iota/93267.cc: New test.
1847 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
1849 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
1852 * include/bits/fs_path.h (path::generic_string<C,A>)
1853 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
1854 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
1855 root-dir is converted to forward slash in generic pathname.
1856 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
1857 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
1860 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
1862 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
1863 (__atomic_float): Add default member initializer for C++20.
1864 * include/std/atomic (atomic): Likewise.
1865 (atomic::atomic()): Remove noexcept-specifier on default constructor.
1866 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
1867 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
1869 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
1870 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
1871 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
1872 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
1873 expected result for is_trivially_default_constructible.
1874 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
1875 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
1876 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
1877 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
1878 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
1879 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
1880 expected results for is_trivially_default_constructible.
1881 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
1884 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
1886 * testsuite/util/testsuite_iterators.h: Improve comment.
1888 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
1889 initialization syntax.
1892 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
1893 of base class independent of __cplusplus value.
1894 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
1895 type defined in the base class
1896 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
1897 * testsuite/24_iterators/istreambuf_iterator/requirements/
1898 base_classes.cc: Adjust expected base class for C++98.
1900 2020-01-09 Olivier Hainque <hainque@adacore.com>
1902 * doc/xml/manual/appendix_contributing.xml: Document _C2
1903 as a reserved identifier, by VxWorks.
1904 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
1905 * include/bits/stl_multimap.h: Likewise.
1907 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
1909 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
1910 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
1911 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
1912 partial specialization to disambiguate the two constrained
1915 * include/experimental/type_traits (experimental::is_pod_v): Disable
1916 -Wdeprecated-declarations warnings around reference to std::is_pod.
1917 * include/std/type_traits (is_pod_v): Likewise.
1918 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
1919 is_standard_layout and is_trivial. Do not check is_pod for C++20.
1920 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
1921 Add -Wno-deprecated for C++20.
1922 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
1923 * testsuite/20_util/is_pod/value.cc: Likewise.
1924 * testsuite/experimental/type_traits/value.cc: Likewise.
1926 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
1928 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
1929 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
1930 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
1932 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
1935 * include/bits/random.h (operator>>): Check stream operation succeeds.
1936 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
1938 (operator>>): Remove redundant __istream_type typedefs. Check stream
1940 (__extract_params): New function to fill a vector from a stream.
1941 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
1944 * config/abi/pre/gnu.ver: Add new exports.
1945 * include/std/memory_resource (memory_resource::~memory_resource()):
1946 Do not define inline.
1947 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
1948 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
1950 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
1951 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
1953 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
1956 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
1958 (_Hashtable<>::__fwd_value_for): New.
1959 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
1961 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
1962 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
1963 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
1965 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
1966 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
1968 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
1970 * testsuite/23_containers/unordered_set/92124.cc: New.
1972 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
1975 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
1976 detailed error reporting for remove_all. Check result of recursive
1977 call before incrementing iterator.
1978 (remove_all(const path&), remove_all(const path&, error_code&)): Use
1980 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
1981 result of recursive call before incrementing iterator.
1982 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
1983 are reported correctly.
1984 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
1986 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
1988 * include/std/condition_variable
1989 (condition_variable_any::wait_on): Rename to match current draft
1991 (condition_variable_any::wait_on_until): Likewise.
1992 (condition_variable_any::wait_on_for): Likewise.
1993 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
1994 Adjust tests to account for renamed methods.
1996 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
1999 * include/bits/stl_tree.h
2000 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
2001 std::move_if_noexcept by std::move.
2002 * testsuite/23_containers/map/92124.cc: New.
2003 * testsuite/23_containers/set/92124.cc: New.
2005 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
2007 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
2008 (stop_source): Likewise (LWG 3362).
2009 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
2012 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
2013 (lexicographical_compare_three_way): Do not depend on
2015 * include/std/version (__cpp_lib_three_way_comparison): Only define
2016 when __cpp_lib_concepts is defined.
2017 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
2019 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
2021 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
2022 Only define four-argument overload when __cpp_lib_concepts is defined.
2024 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
2026 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
2028 2020-01-01 Jakub Jelinek <jakub@redhat.com>
2030 Update copyright years.
2032 Copyright (C) 2020 Free Software Foundation, Inc.
2034 Copying and distribution of this file, with or without modification,
2035 are permitted in any medium without royalty provided the copyright
2036 notice and this notice are preserved.