1 2020-10-05 Jonathan Wakely <jwakely@redhat.com>
3 * include/bits/regex.h: Use __int_traits<int> instead of
4 std::numeric_limits<int>.
5 * include/bits/uniform_int_dist.h: Use __int_traits<T>::__max
6 instead of std::numeric_limits<T>::max().
7 * include/bits/hashtable_policy.h: Use size_t(-1) instead of
8 std::numeric_limits<size_t>::max().
9 * include/std/regex: Include <ext/numeric_traits.h>.
10 * include/std/string_view: Use typedef for __int_traits<int>.
11 * src/c++11/hashtable_c++0x.cc: Use size_t(-1) instead of
12 std::numeric_limits<size_t>::max().
13 * testsuite/std/ranges/iota/96042.cc: Include <limits>.
14 * testsuite/std/ranges/iota/difference_type.cc: Likewise.
15 * testsuite/std/ranges/subrange/96042.cc: Likewise.
17 2020-10-05 Jonathan Wakely <jwakely@redhat.com>
19 * include/std/numeric: Move all #include directives to the top
21 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line
23 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
25 2020-10-05 Jonathan Wakely <jwakely@redhat.com>
27 * config/abi/pre/gnu.ver: Add new symbol.
28 * include/bits/functexcept.h (__throw_bad_array_new_length):
30 * include/ext/malloc_allocator.h (malloc_allocator::allocate):
31 Throw bad_array_new_length for impossible sizes (LWG 3190).
32 * include/ext/new_allocator.h (new_allocator::allocate):
34 * include/std/memory_resource (polymorphic_allocator::allocate)
35 (polymorphic_allocator::allocate_object): Use new function,
36 __throw_bad_array_new_length.
37 * src/c++11/functexcept.cc (__throw_bad_array_new_length):
39 * testsuite/20_util/allocator/lwg3190.cc: New test.
41 2020-10-05 Mike Crowe <mac@mcrowe.com>
44 * include/bits/atomic_futex.h:
45 (__atomic_futex_unsigned::_M_load_when_equal_until): Use target
46 clock duration type when rounding.
47 * testsuite/30_threads/async/async.cc (test_pr91486_wait_for):
48 Rename from test_pr91486.
49 (float_steady_clock): New class for test.
50 (test_pr91486_wait_until): New test.
52 2020-10-05 Mike Crowe <mac@mcrowe.com>
54 * testsuite/20_util/duration_cast/rounding_c++11.cc: Copy
55 rounding.cc and alter to support compilation for C++11 and to
56 test std::chrono::__detail::ceil.
58 2020-10-02 Jonathan Wakely <jwakely@redhat.com>
60 * testsuite/29_atomics/atomic_float/value_init.cc: Use float
61 instead of double so that __atomic_load_8 isn't needed.
63 2020-10-02 Jonathan Wakely <jwakely@redhat.com>
65 * testsuite/18_support/96817.cc: Use terminate handler that
68 2020-10-02 Patrick Palka <ppalka@redhat.com>
70 * include/bits/stl_iterator.h (reverse_iterator::iter_move):
71 Define for C++20 as per P0896.
72 (reverse_iterator::iter_swap): Likewise.
73 (move_iterator::operator*): Apply P0896 changes for C++20.
74 (move_iterator::operator[]): Likewise.
75 * testsuite/24_iterators/reverse_iterator/cust.cc: New test.
77 2020-10-01 Jonathan Wakely <jwakely@redhat.com>
79 * config/cpu/arm/cxxabi_tweaks.h (_GLIBCXX_GUARD_TEST_AND_ACQUIRE):
80 Do not try to dereference return value of __atomic_load_n.
82 2020-09-30 Jonathan Wakely <jwakely@redhat.com>
84 * config/cpu/arm/cxxabi_tweaks.h (_GLIBCXX_GUARD_TEST_AND_ACQUIRE):
85 (_GLIBCXX_GUARD_SET_AND_RELEASE): Define for EABI.
87 2020-09-30 Jonathan Wakely <jwakely@redhat.com>
89 * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_SAME):
90 Define for GCC 11 or when !__is_identifier(__is_same).
91 (_GLIBCXX_BUILTIN_IS_SAME_AS): Remove.
92 * include/std/type_traits (is_same, is_same_v): Replace uses
93 of _GLIBCXX_BUILTIN_IS_SAME_AS.
95 2020-09-28 Patrick Palka <ppalka@redhat.com>
97 * include/std/ranges (filter_view): Declare the data member
98 _M_base last instead of first, and adjust constructors' member
99 initializer lists accordingly.
100 (transform_view): Likewise.
101 (take_view): Likewise.
102 (take_while_view): Likewise.
103 (drop_view): Likewise.
104 (drop_while_view): Likewise.
105 (join_view): Likewise.
106 (split_view): Likewise (and tweak nearby formatting).
107 (reverse_view): Likewise.
108 * testsuite/std/ranges/adaptors/sizeof.cc: Update expected
111 2020-09-28 Patrick Palka <ppalka@redhat.com>
113 * testsuite/std/ranges/adaptors/sizeof.cc: New test.
115 2020-09-28 Patrick Palka <ppalka@redhat.com>
117 * include/bits/ranges_util.h (subrange::_M_end): Give it
118 [[no_unique_address]].
119 * testsuite/std/ranges/subrange/sizeof.cc: New test.
121 2020-09-28 Patrick Palka <ppalka@redhat.com>
123 * include/std/ranges (iota_view::_M_bound): Give it
124 [[no_unique_address]].
125 * testsuite/std/ranges/iota/iota_view.cc: Check that an
126 unbounded iota_view has minimal size.
128 2020-09-27 Clement Chigot <clement.chigot@atos.net>
130 * config/os/aix/t-aix: Use $(AR) without -X32_64.
132 2020-09-26 Jonathan Wakely <jwakely@redhat.com>
135 * include/ext/atomicity.h (__gnu_cxx::__is_single_threaded()):
136 New function wrapping __libc_single_threaded if available.
137 (__exchange_and_add_dispatch, __atomic_add_dispatch): Use it.
138 * libsupc++/guard.cc (__cxa_guard_acquire, __cxa_guard_abort)
139 (__cxa_guard_release): Likewise.
140 * testsuite/18_support/96817.cc: New test.
142 2020-09-25 Jonathan Wakely <jwakely@redhat.com>
144 * libsupc++/Makefile.am: Remove redundant -std=gnu++1z flags.
145 * libsupc++/Makefile.in: Regenerate.
147 2020-09-24 Antony Polukhin <antoshkka@gmail.com>
150 * include/std/type_traits (invoke_result, is_invocable)
151 (is_invocable_r, is_nothrow_invocable, is_nothrow_invocable_r):
152 Add static_asserts to make sure that the arguments of the type
153 traits are not misused with incomplete types.
154 * testsuite/20_util/invoke_result/incomplete_args_neg.cc: New test.
155 * testsuite/20_util/is_invocable/incomplete_args_neg.cc: New test.
156 * testsuite/20_util/is_invocable/incomplete_neg.cc: New test.
157 * testsuite/20_util/is_nothrow_invocable/incomplete_args_neg.cc:
159 * testsuite/20_util/is_nothrow_invocable/incomplete_neg.cc: Check
160 for error on incomplete type usage in trait.
162 2020-09-24 Patrick Palka <ppalka@redhat.com>
164 * include/std/ranges (__detail::__boxable): Split out the
165 associated constraints of __box into here.
166 (__detail::__box): Use the __boxable concept. Define a leaner
167 partial specialization for semiregular types.
168 (single_view::_M_value): Give it [[no_unique_address]].
169 (filter_view::_M_pred): Likewise.
170 (transform_view::_M_fun): Likewise.
171 (take_while_view::_M_pred): Likewise.
172 (drop_while_view::_M_pred):: Likewise.
173 * testsuite/std/ranges/adaptors/detail/semiregular_box.cc: New
176 2020-09-24 Jonathan Wakely <jwakely@redhat.com>
178 * doc/xml/manual/configure.xml: Correct name of option.
179 * doc/html/*: Regenerate.
181 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
184 * src/c++17/fs_path.cc (path::_Parser::root_path()): Check
185 for empty string before inspecting the first character.
186 * testsuite/27_io/filesystem/path/append/source.cc: Append
187 empty string_view to path.
189 2020-09-22 Glen Joseph Fernandes <glenjofe@gmail.com>
191 * include/bits/align.h (align): Fix overflow handling.
192 * testsuite/20_util/align/3.cc: New test.
194 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
196 * include/Makefile.am: Add new headers and adjust for renamed
198 * include/Makefile.in: Regenerate.
199 * include/bits/iterator_concepts.h: Adjust for renamed header.
200 * include/bits/range_access.h (ranges::*): Move to new
201 <bits/ranges_base.h> header.
202 * include/bits/ranges_algobase.h: Include new <bits/ranges_base.h>
203 header instead of <ranges>.
204 * include/bits/ranges_algo.h: Include new <bits/ranges_util.h>
206 * include/bits/range_cmp.h: Moved to...
207 * include/bits/ranges_cmp.h: ...here.
208 * include/bits/ranges_base.h: New header.
209 * include/bits/ranges_util.h: New header.
210 * include/experimental/string_view: Include new
211 <bits/ranges_base.h> header.
212 * include/std/functional: Adjust for renamed header.
213 * include/std/ranges (ranges::view_base, ranges::enable_view)
214 (ranges::dangling, ranges::borrowed_iterator_t): Move to new
215 <bits/ranges_base.h> header.
216 (ranges::view_interface, ranges::subrange)
217 (ranges::borrowed_subrange_t): Move to new <bits/ranges_util.h>
219 * include/std/span: Include new <bits/ranges_base.h> header.
220 * include/std/string_view: Likewise.
221 * testsuite/24_iterators/back_insert_iterator/pr93884.cc: Add
222 missing <ranges> header.
223 * testsuite/24_iterators/front_insert_iterator/pr93884.cc:
226 2020-09-22 Jonathan Wakely <jwakely@redhat.com>
230 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
231 Use correct value category in __use_alloc call.
232 * testsuite/20_util/tuple/cons/96803.cc: Check with constructors
233 that require correct value category to be used.
235 2020-09-22 Patrick Palka <ppalka@redhat.com>
237 * include/std/span (span::front): Remove static_assert.
238 (span::back): Likewise.
239 (span::operator[]): Likewise.
240 * testsuite/23_containers/span/back_neg.cc: Rewrite to verify
241 that we check the preconditions of back() only when it's called.
242 * testsuite/23_containers/span/front_neg.cc: Likewise for
244 * testsuite/23_containers/span/index_op_neg.cc: Likewise for
247 2020-09-22 Patrick Palka <ppalka@redhat.com>
249 * include/bits/stl_algo.h (__sample): Exit early when the
250 input range is empty.
251 * testsuite/25_algorithms/sample/3.cc: New test.
253 2020-09-22 Patrick Palka <ppalka@redhat.com>
255 * include/bits/stl_algo.h (for_each_n): Mark constexpr for C++20.
256 (search): Likewise for the overload that takes a searcher.
257 * testsuite/25_algorithms/for_each/constexpr.cc: Test constexpr
259 * testsuite/25_algorithms/search/constexpr.cc: Test constexpr
260 std::search overload that takes a searcher.
262 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
264 * include/bits/c++config (__replacement_assert): Add noreturn
266 (__glibcxx_assert_impl): Use __builtin_expect to hint that the
267 assertion is expected to pass.
269 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
271 * include/std/ranges (drop_view::begin()): Adjust constraints
272 to match the correct condition for O(1) ranges::next (LWG 3482).
273 * testsuite/std/ranges/adaptors/drop.cc: Check that iterator is
274 cached for non-sized_range.
276 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
278 * include/std/ranges (transform_view, elements_view): Relax
279 constraints on operator- for iterators, as per LWG 3483.
280 * testsuite/std/ranges/adaptors/elements.cc: Check that we
281 can take the difference of two iterators from a non-random
283 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
285 2020-09-21 Jonathan Wakely <jwakely@redhat.com>
288 * include/bits/align.h (align) [!_GLIBCXX_USE_C99_STDINT_TR1]:
290 (assume_aligned): Do not use __builtin_assume_aligned during
292 * testsuite/20_util/assume_aligned/1.cc: Improve test.
293 * testsuite/20_util/assume_aligned/97132.cc: New test.
295 2020-09-20 Jonathan Wakely <jwakely@redhat.com>
298 * include/std/functional (bind_front): Fix order of parameters
299 in is_nothrow_constructible_v specialization.
300 * testsuite/20_util/function_objects/bind_front/97101.cc: New test.
302 2020-09-11 Thomas Rodgers <trodgers@redhat.com>
304 * include/std/memory: Move #include <bits/align.h> inside C++11
305 conditional includes.
307 2020-09-11 Thomas Rodgers <trodgers@redhat.com>
309 * include/Makefile.am (bits_headers): Add new header.
310 * include/Makefile.in: Regenerate.
311 * include/bits/align.h: New file.
312 * include/std/memory (align): Move definition to bits/align.h.
313 (assume_aligned): Likewise.
315 2020-09-11 Jonathan Wakely <jwakely@redhat.com>
317 * include/std/chrono [C++17] (chrono::__detail::ceil): Add
318 using declaration to make chrono::ceil available for internal
319 use with a consistent name.
320 (chrono::__detail::__ceil_impl): New function template.
321 (chrono::__detail::ceil): Use __ceil_impl to compare and
322 increment the value. Remove SFINAE constraint.
324 2020-09-11 Jonathan Wakely <jwakely@redhat.com>
326 * include/bits/regex_error.h (__throw_regex_error): Fix
327 parameter declaration and use reserved attribute names.
329 2020-09-11 Mike Crowe <mac@mcrowe.com>
331 * include/std/condition_variable (condition_variable::wait_until):
332 Convert delta to steady_clock duration before adding to current
333 steady_clock time to avoid rounding errors described in PR68519.
334 (condition_variable::wait_for): Simplify calculation of absolute
335 time by using chrono::__detail::ceil in both overloads.
336 * testsuite/30_threads/condition_variable/members/68519.cc:
337 (test_wait_for): Renamed from test01. Replace unassigned val
338 variable with constant false. Reduce scope of mx and cv
339 variables to just test_wait_for function.
340 (test_wait_until): Add new test case.
342 2020-09-11 Mike Crowe <mac@mcrowe.com>
345 * include/bits/atomic_futex.h
346 (__atomic_futex_unsigned::_M_load_when_equal_for)
347 (__atomic_futex_unsigned::_M_load_when_equal_until): Use
348 __detail::ceil to convert delta to the reference clock
349 duration type to avoid resolution problems.
350 * include/std/chrono (__detail::ceil): Move implementation
351 of std::chrono::ceil into private namespace so that it's
352 available to pre-C++17 code.
353 * testsuite/30_threads/async/async.cc (test_pr91486):
354 Test __atomic_futex_unsigned::_M_load_when_equal_for.
356 2020-09-11 Mike Crowe <mac@mcrowe.com>
358 * include/bits/atomic_futex.h
359 (__atomic_futex_unsigned::_M_load_when_equal_until): Add
360 loop on generic _Clock to check the timeout against _Clock
361 again after _M_load_when_equal_until returns indicating a
363 * testsuite/30_threads/async/async.cc: Invent slow_clock
364 that runs at an eleventh of steady_clock's speed. Use it
365 to test the user-supplied-clock variant of
366 __atomic_futex_unsigned::_M_load_when_equal_until works
367 generally with test03 and loops correctly when the timeout
368 time hasn't been reached in test04.
370 2020-09-11 Mike Crowe <mac@mcrowe.com>
373 * include/bits/atomic_futex.h (__atomic_futex_unsigned): Change
374 __clock_t typedef to use steady_clock so that unknown clocks are
375 synced to it rather than system_clock. Change existing __clock_t
376 overloads of _M_load_and_text_until_impl and
377 _M_load_when_equal_until to use system_clock explicitly. Remove
378 comment about DR 887 since these changes address that problem as
379 best as we currently able.
381 2020-09-11 Mike Crowe <mac@mcrowe.com>
384 * config/abi/pre/gnu.ver: Update for addition of
385 __atomic_futex_unsigned_base::_M_futex_wait_until_steady.
386 * include/bits/atomic_futex.h (__atomic_futex_unsigned_base):
387 Add comments to clarify that _M_futex_wait_until and
388 _M_load_and_test_until use CLOCK_REALTIME.
389 (__atomic_futex_unsigned_base::_M_futex_wait_until_steady)
390 (__atomic_futex_unsigned_base::_M_load_and_text_until_steady):
391 New member functions that use CLOCK_MONOTONIC.
392 (__atomic_futex_unsigned_base::_M_load_and_test_until_impl)
393 (__atomic_futex_unsigned_base::_M_load_when_equal_until): Add
394 overloads that accept a steady_clock time_point and use the
395 new member functions.
396 * src/c++11/futex.cc: Include headers required for
398 (futex_clock_monotonic_flag): New constant to tell futex to
399 use CLOCK_MONOTONIC to match existing futex_clock_realtime_flag.
400 (futex_clock_monotonic_unavailable): New global to store the
401 result of trying to use CLOCK_MONOTONIC.
402 (__atomic_futex_unsigned_base::_M_futex_wait_until_steady): Add
403 new variant of _M_futex_wait_until that uses CLOCK_MONOTONIC to
404 support waiting using steady_clock.
406 2020-09-11 Mike Crowe <mac@mcrowe.com>
408 * src/c++11/futex.cc: Add new constants for required futex
409 flags. Add futex_clock_realtime_unavailable flag to store
410 result of trying to use FUTEX_CLOCK_REALTIME.
411 (__atomic_futex_unsigned_base::_M_futex_wait_until): Try to
412 use FUTEX_WAIT_BITSET with FUTEX_CLOCK_REALTIME and only
413 fall back to using gettimeofday and FUTEX_WAIT if that's not
416 2020-09-11 Mike Crowe <mac@mcrowe.com>
418 * testsuite/30_threads/async/async.cc (test02): Test steady_clock
419 with std::future::wait_until.
420 (test03): Add new test templated on clock type waiting for future
421 associated with async to resolve.
422 (main): Call test03 to test both system_clock and steady_clock.
424 2020-09-11 Torbjörn SVENSSON <torbjorn.svensson@st.com>
425 Christophe Lyon <christophe.lyon@linaro.org>
427 * libsupc++/eh_call.cc: Avoid warning with -fno-exceptions.
429 2020-09-11 Torbjörn SVENSSON <torbjorn.svensson@st.com>
430 Christophe Lyon <christophe.lyon@linaro.org>
432 * libsupc++/eh_call.cc: Avoid warning with -fno-exceptions.
434 2020-09-11 Christophe Lyon <christophe.lyon@linaro.org>
436 * include/bits/regex_error.h: Avoid warning with -fno-exceptions.
438 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
440 * include/bits/locale_conv.h (__do_str_codecvt, __str_codecvt_in_all):
441 Add casts to compare types of the same signedness.
443 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
445 * include/bits/ranges_algobase.h (__equal_fn): Remove unused
448 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
450 * include/std/version (__cpp_lib_array_constexpr):
451 (__cpp_lib_constexpr_char_traits): Only define C++17 value when
454 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
456 * include/experimental/bits/shared_ptr.h (shared_ptr(auto_ptr&&))
457 (operator=(auto_ptr&&)): Add diagnostic pragmas to suppress
458 warnings for uses of std::auto_ptr.
459 * include/experimental/type_traits (is_literal_type_v):
460 Likewise, for use of std::is_literal_type.
461 * include/std/condition_variable (condition_variable_any::_Unlock):
462 Likewise, for use of std::uncaught_exception.
464 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
466 * include/bits/fs_path.h (path::_List::type()): Avoid narrowing
468 * include/std/chrono (operator+(const year&, const years&)):
471 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
473 * include/bits/codecvt.h (codecvt_byname): Remove names of
476 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
478 * include/bits/locale_facets_nonio.tcc: Adjust whitespace.
480 2020-09-10 Krystian Kuźniarek <krystian.kuzniarek@gmail.com>
482 * include/c_global/cmath (__lerp): Avoid -Wparentheses warnings.
484 2020-09-10 Krystian Kuźniarek <krystian.kuzniarek@gmail.com>
486 * include/bits/atomic_base.h: Fix -Wunused-variable
488 * include/ext/new_allocator.h: Fix -Wunused-parameter
491 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
493 * include/bits/stl_iterator.h (counted_iterator): Add assertions
494 to check preconditions added by LWG 3472.
496 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
499 * src/c++17/memory_resource.cc (munge_options): Round
500 max_blocks_per_chunk to a multiple of four.
501 (__pool_resource::_M_alloc_pools()): Simplify slightly.
502 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc:
503 Check that valid pointers are returned when small values are
504 used for max_blocks_per_chunk.
506 2020-09-10 Jonathan Wakely <jwakely@redhat.com>
509 * include/std/memory_resource (monotonic_buffer_resource::do_allocate):
510 Use __builtin_expect when checking if a new buffer needs to be
511 allocated from the upstream resource, and for checks for edge
512 cases like zero sized buffers and allocations.
513 * src/c++17/memory_resource.cc (aligned_size): New class template.
514 (aligned_ceil): New helper function to round up to a given
516 (monotonic_buffer_resource::chunk): Replace _M_size and _M_align
517 with an aligned_size member. Remove _M_canary member. Change _M_next
518 to pointer instead of unaligned buffer.
519 (monotonic_buffer_resource::chunk::allocate): Round up to multiple
520 of 64 instead of to power of two. Check for size overflow. Remove
521 redundant check for minimum required alignment.
522 (monotonic_buffer_resource::chunk::release): Adjust for changes
524 (monotonic_buffer_resource::_M_new_buffer): Use aligned_ceil.
525 (big_block): Replace _M_size and _M_align with aligned_size
527 (big_block::big_block): Check for size overflow.
528 (big_block::size, big_block::align): Adjust to use aligned_size.
529 (big_block::alloc_size): Use aligned_ceil.
530 (munge_options): Use aligned_ceil.
531 (__pool_resource::allocate): Use big_block::align for alignment.
532 * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Check
533 upstream resource gets expected values for impossible sizes.
534 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc:
535 Likewise. Adjust checks for expected alignment in existing test.
537 2020-09-07 Jonathan Wakely <jwakely@redhat.com>
539 * include/std/chrono (duration::_S_gcd): Use invariant that
540 neither value is zero initially.
542 2020-09-07 Jonathan Wakely <jwakely@redhat.com>
544 * include/std/ranges (__box): Simplify constraints as per LWG 3477.
546 2020-09-03 Jonathan Wakely <jwakely@redhat.com>
549 * include/std/tuple (_TupleConstraints<true, T...>): Use
550 alternative is_constructible instead of std::is_constructible.
551 * testsuite/20_util/tuple/cons/96592.cc: New test.
553 2020-09-03 Jonathan Wakely <jwakely@redhat.com>
555 * include/std/chrono (duration::_S_gcd): Use iterative algorithm
557 * include/std/numeric (__detail::__gcd): Replace recursive
558 Euclidean algorithm with iterative version of binary GCD algorithm.
559 * testsuite/26_numerics/gcd/1.cc: Test additional inputs.
560 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error lines.
561 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
562 * testsuite/experimental/numeric/gcd.cc: Test additional inputs.
563 * testsuite/26_numerics/gcd/2.cc: New test.
565 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
568 * testsuite/experimental/numeric/92978.cc: Use experimental::lcm
571 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
574 * include/bits/cpp_type_traits.h (__is_memcmp_ordered):
575 New trait that says if memcmp can be used for ordering.
576 (__is_memcmp_ordered_with): Likewise, for two types.
577 * include/bits/deque.tcc (__lex_cmp_dit): Use new traits
578 instead of __is_byte and __numeric_traits.
579 (__lexicographical_compare_aux1): Likewise.
580 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
582 * include/bits/stl_algobase.h (__lexicographical_compare_aux1)
583 (__is_byte_iter): Likewise.
584 * include/std/array (operator<=>): Likewise. Only use memcmp
585 when std::is_constant_evaluated() is false.
586 * testsuite/23_containers/array/comparison_operators/96851.cc:
588 * testsuite/23_containers/array/tuple_interface/get_neg.cc:
589 Adjust dg-error line numbers.
591 2020-09-02 Jonathan Wakely <jwakely@redhat.com>
593 * include/bits/stl_iterator.h: Include <bits/exception_defines.h>
594 for definitions of __try, __catch and __throw_exception_again.
595 (counted_iterator::operator++(int)): Use __throw_exception_again
597 * libsupc++/new: Include <bits/exception.h> not <exception>.
598 * libsupc++/new_opvnt.cc: Include <bits/exception_defines.h>.
599 * testsuite/18_support/destroying_delete.cc: Include
600 <type_traits> for std::is_same_v definition.
601 * testsuite/20_util/variant/index_type.cc: Qualify size_t.
603 2020-09-01 Jonathan Wakely <jwakely@redhat.com>
606 * include/bits/c++config (__glibcxx_assert_impl): Remove
607 do-while so that uses of the macro need to add it.
608 (__glibcxx_assert): Rename macro for runtime assertions
609 to __glibcxx_assert_2.
610 (__glibcxx_assert_1): Define macro for constexpr assertions.
611 (__glibcxx_assert): Define macro for constexpr and runtime
613 * include/bits/range_access.h (ranges::advance): Remove
614 redundant precondition checks during constant evaluation.
615 * include/parallel/base.h (_GLIBCXX_PARALLEL_ASSERT): Always
616 use do-while in macro expansion.
617 * include/std/ranges (iota_view::iota_view(W, B)): Remove
620 2020-09-01 Jonathan Wakely <jwakely@redhat.com>
622 * include/std/chrono (duration::_S_gcd(intmax_t, intmax_t)):
623 New helper function for finding GCD of two positive intmax_t
625 (duration::__divide): New helper alias for dividing one period
627 (duration::__is_harmonic): Use __divide not ratio_divide.
628 (duration(const duration<R2, P2>&)): Require the duration rep
629 types to be convertible.
630 * testsuite/20_util/duration/cons/dr2094.cc: New test.
631 * testsuite/20_util/duration/requirements/reduced_period.cc:
632 Fix definition of unused member functions in test type.
633 * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
634 Adjust expected errors.
636 2020-08-29 Jonathan Wakely <jwakely@redhat.com>
638 * include/std/numeric (__detail::__absu(bool)): Make deleted
639 function a function template, so it will be chosen for calls
640 with an explicit template argument list.
641 * testsuite/26_numerics/gcd/gcd_neg.cc: Add dg-prune-output.
642 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
644 2020-08-28 Jonathan Wakely <jwakely@redhat.com>
646 * include/std/chrono (common_type): Fix partial specializations
647 for a single duration type to use the common_type of the rep.
648 (duration::operator+, duration::operator-): Fix return types
649 to also use the common_type of the rep.
650 * testsuite/20_util/duration/requirements/reduced_period.cc:
651 Check duration using a rep that has common_type specialized.
653 2020-08-28 Jonathan Wakely <jwakely@redhat.com>
656 * include/std/numeric (__abs_integral): Replace with ...
657 (__detail::__absu): New function template that returns an
658 unsigned type, guaranteeing it can represent the most
659 negative signed value.
660 (__detail::__gcd, __detail::__lcm): Require arguments to
661 be unsigned and therefore already non-negative.
662 (gcd, lcm): Convert arguments to absolute value as unsigned
663 type before calling __detail::__gcd or __detail::__lcm.
664 * include/experimental/numeric (gcd, lcm): Likewise.
665 * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust expected
667 * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise.
668 * testsuite/26_numerics/gcd/92978.cc: New test.
669 * testsuite/26_numerics/lcm/92978.cc: New test.
670 * testsuite/experimental/numeric/92978.cc: New test.
672 2020-08-27 Jonathan Wakely <jwakely@redhat.com>
674 * include/std/chrono (__duration_common_type): Ensure the
675 reduced ratio is used. Remove unused partial specialization
676 using __failure_type.
677 (common_type): Pass reduced ratios to __duration_common_type.
678 Add partial specializations for simple cases involving a single
679 duration or time_point type.
680 (duration::period): Use reduced ratio.
681 (duration::operator+(), duration::operator-()): Return duration
682 type using the reduced ratio.
683 * testsuite/20_util/duration/requirements/typedefs_neg2.cc:
684 Adjust expected errors.
685 * testsuite/20_util/duration/requirements/reduced_period.cc: New test.
687 2020-08-27 Patrick Palka <ppalka@redhat.com>
689 * include/std/chrono (year_month::operator+): Properly handle a
690 month value of 0 by casting the month value to int before
691 subtracting 1 from it so that the difference is sign-extended in
692 the subsequent addition.
693 * testsuite/std/time/year_month/1.cc: Test adding months to a
694 year_month whose month component is below or above the
695 normalized range of [1,12].
697 2020-08-27 Patrick Palka <ppalka@redhat.com>
700 (__detail::__months_years_conversion_disambiguator): Define.
701 (year_month::operator+=): Templatize the 'months'-based overload
702 so that the 'years'-based overload is selected in case of
703 equally-ranked implicit conversion sequences to both 'months'
704 and 'years' from the supplied argument.
705 (year_month::operator-=): Likewise.
706 (year_month::operator+): Likewise.
707 (year_month::operator-): Likewise.
708 (year_month_day::operator+=): Likewise.
709 (year_month_day::operator-=): Likewise.
710 (year_month_day::operator+): Likewise.
711 (year_month_day::operator-): Likewise.
712 (year_month_day_last::operator+=): Likewise.
713 (year_month_day_last::operator-=): Likewise.
714 (year_month_day_last::operator+): Likewise
715 (year_month_day_last::operator-): Likewise.
716 (year_month_day_weekday::operator+=): Likewise
717 (year_month_day_weekday::operator-=): Likewise.
718 (year_month_day_weekday::operator+): Likewise.
719 (year_month_day_weekday::operator-): Likewise.
720 (year_month_day_weekday_last::operator+=): Likewise
721 (year_month_day_weekday_last::operator-=): Likewise.
722 (year_month_day_weekday_last::operator+): Likewise.
723 (year_month_day_weekday_last::operator-): Likewise.
724 (testsuite/std/time/year_month/2.cc): New test.
725 (testsuite/std/time/year_month_day/2.cc): New test.
726 (testsuite/std/time/year_month_day_last/2.cc): New test.
727 (testsuite/std/time/year_month_weekday/2.cc): New test.
728 (testsuite/std/time/year_month_weekday_last/2.cc): New test.
729 * testsuite/std/time/year_month/2.cc: New file.
730 * testsuite/std/time/year_month_day/2.cc: New file.
731 * testsuite/std/time/year_month_day_last/2.cc: New file.
732 * testsuite/std/time/year_month_weekday/2.cc: New file.
733 * testsuite/std/time/year_month_weekday_last/2.cc: New file.
735 2020-08-27 Patrick Palka <ppalka@redhat.com>
738 * include/std/ranges (transform_view::sentinel::__distance_from):
739 Give this a deduced return type.
740 (transform_view::sentinel::operator-): Adjust the return type so
741 that it's based on the constness of the iterator rather than
742 that of the sentinel.
743 * testsuite/std/ranges/adaptors/95322.cc: Refer to LWG 3488.
745 2020-08-27 Patrick Palka <ppalka@redhat.com>
747 * include/std/ranges (elements_view::begin): Adjust constraints.
748 (elements_view::end): Likewise.
749 (elements_view::_Sentinel::operator==): Templatize to take both
750 _Iterator<true> and _Iterator<false>.
751 (elements_view::_Sentinel::operator-): Likewise.
752 * testsuite/std/ranges/adaptors/elements.cc: Add testcase for
753 the example from P1994R1.
754 * testsuite/std/ranges/adaptors/lwg3406.cc: New test.
756 2020-08-27 Patrick Palka <ppalka@redhat.com>
758 * include/std/ranges (elements_view::end): Replace these two
759 overloads with four new overloads.
760 (elements_view::_Iterator::operator==): Remove.
761 (elements_view::_Iterator::operator-): Likewise.
762 (elements_view::_Sentinel): Define.
764 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
766 * include/std/tuple (_Tuple_impl): Whitespaces changes for
767 consistent indentation. Also use __enable_if_t alias template.
769 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
773 (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl<U...>&)):
774 Replace parameter pack with a type parameter and a pack and pass
775 the first type to __use_alloc.
776 * testsuite/20_util/tuple/cons/96803.cc: New test.
778 2020-08-26 Patrick Palka <ppalka@redhat.com>
780 * include/std/chrono (year_month_weekday::operator==): Compare
781 weekday_indexed instead of weekday.
782 * testsuite/std/time/year_month_weekday/1.cc: Augment testcase.
784 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
786 * include/bits/hashtable_policy.h (_Hash_code_base): Change
787 index of _Hashtable_ebo_helper base class.
788 * testsuite/23_containers/unordered_map/dup_types.cc: New test.
790 2020-08-26 Jonathan Wakely <jwakely@redhat.com>
793 * include/experimental/string_view (basic_string_view):
794 Enable debug assertions.
795 * include/std/string_view (basic_string_view):
798 2020-08-26 François Dumont <fdumont@gcc.gnu.org>
800 * include/bits/hashtable_policy.h (_Hashtable<>): Rename _H1 into _Hash
801 _H2 into _RangeHash and _Hash into _Unused.
802 (_Hastable_base<>): Likewise.
803 (_Map_base<>): Likewise.
804 (_Insert_base<>): Likewise.
805 (_Insert<>): Likewise.
806 (_Rehash_base<>): Likewise.
807 (_Local_iterator_base<>): Likewise.
808 (_Hash_code_base<>): Likewise.
809 (_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, false>):
811 (_Hash_code_base<_Key, _Value, _ExtractKey, _H1, _H2, _Hash, true>):
813 (_Hash_code_base<_Key, _Value, _ExtractKey, _Hash, _RangeHas, _Unused,
814 bool>): Remove _Hashtable_ebo_helper<2, _RangeHash> base type..
815 (_Hash_code_base<>::_M_bucket_index(const _Key&, __hash_code, size_t)):
817 (_Hash_code_base<>::_M_bucket_index(__hash_code, size_t)): ...this.
818 (_Local_iterator<>): Remove _H1 and _H2 template parameters.
819 (_Local_const_iterator<>): Likewise.
820 (_Equality<>): Likewise.
821 (_Map_base<>::operator[](const key_type&): Adapt.
822 (_Map_base<>::operator[](key_type&&): Adapt.
823 (_Identity::operator()): Add noexcept.
824 (_Select1st::operator()): Likewise.
825 (_Hash_code_base<>): Remove _Hashtable_ebo_helper<0, _ExtractKey> base
827 (_Hash_code_base::_M_extract): Remove.
828 * include/bits/hashtable.h (_Hashtable<>): Remove _H1 and _H2 template
829 parameters. Remove _ExtractKey from constructors.
830 (_Hashtable<>::_M_insert_unique_node(const key_type&, size_t,
831 __hash_code, __node_type*, size_t)): Replace by...
832 (_Hashtable<>::_M_insert_unique_node(size_t, __hash_code,
833 __node_type*, size_t)): ...this.
834 (_Hashtable<>::_M_insert_muti_node(__node_type*, const key_type&,
835 __hash_code, __node_type*)): Replace by...
836 (_Hashtable<>::_M_insert_multi_node(__node_type*, __hash_code,
837 __node_type*)): ...this.
838 (_Hashtable<>::__key_extract): Remove.
839 * include/bits/node_handle.h: Adapt.
841 2020-08-25 Jonathan Wakely <jwakely@redhat.com>
843 * testsuite/21_strings/debug/iterator_self_move_assign_neg.cc: Removed.
844 * testsuite/21_strings/debug/self_move_assign_neg.cc: Removed.
845 * testsuite/23_containers/deque/debug/iterator_self_move_assign_neg.cc: Removed.
846 * testsuite/23_containers/deque/debug/self_move_assign_neg.cc: Removed.
847 * testsuite/23_containers/forward_list/debug/iterator_self_move_assign_neg.cc: Removed.
848 * testsuite/23_containers/forward_list/debug/self_move_assign_neg.cc: Removed.
849 * testsuite/23_containers/list/debug/iterator_self_move_assign_neg.cc: Removed.
850 * testsuite/23_containers/list/debug/self_move_assign_neg.cc: Removed.
851 * testsuite/23_containers/map/debug/iterator_self_move_assign_neg.cc: Removed.
852 * testsuite/23_containers/map/debug/self_move_assign_neg.cc: Removed.
853 * testsuite/23_containers/multimap/debug/iterator_self_move_assign_neg.cc: Removed.
854 * testsuite/23_containers/multimap/debug/self_move_assign_neg.cc: Removed.
855 * testsuite/23_containers/multiset/debug/iterator_self_move_assign_neg.cc: Removed.
856 * testsuite/23_containers/multiset/debug/self_move_assign_neg.cc: Removed.
857 * testsuite/23_containers/set/debug/iterator_self_move_assign_neg.cc: Removed.
858 * testsuite/23_containers/set/debug/self_move_assign_neg.cc: Removed.
859 * testsuite/23_containers/unordered_map/debug/iterator_self_move_assign_neg.cc: Removed.
860 * testsuite/23_containers/unordered_map/debug/self_move_assign_neg.cc: Removed.
861 * testsuite/23_containers/unordered_multimap/debug/iterator_self_move_assign_neg.cc:
863 * testsuite/23_containers/unordered_multimap/debug/self_move_assign_neg.cc: Removed.
864 * testsuite/23_containers/unordered_multiset/debug/iterator_self_move_assign_neg.cc:
866 * testsuite/23_containers/unordered_multiset/debug/self_move_assign_neg.cc: Removed.
867 * testsuite/23_containers/unordered_set/debug/iterator_self_move_assign_neg.cc: Removed.
868 * testsuite/23_containers/unordered_set/debug/self_move_assign_neg.cc: Removed.
869 * testsuite/23_containers/vector/debug/iterator_self_move_assign_neg.cc: Removed.
870 * testsuite/23_containers/vector/debug/self_move_assign_neg.cc: Removed.
872 2020-08-25 Patrick Palka <ppalka@redhat.com>
874 * include/std/chrono (year_month_weekday::ok): Fix assert.
876 2020-08-25 Jonathan Wakely <jwakely@redhat.com>
878 * include/std/future (future, shared_future. promise): Add
879 is_destructible assertion (LWG 3466). Adjust string-literal for
880 !is_array and !is_function assertions.
881 * testsuite/30_threads/future/requirements/lwg3458.cc: Check
882 types with no accessible destructor. Adjust expected errors.
883 * testsuite/30_threads/promise/requirements/lwg3466.cc:
885 * testsuite/30_threads/shared_future/requirements/lwg3458.cc:
888 2020-08-25 Patrick Palka <ppalka@redhat.com>
889 Ed Smith-Rowland <3dw4rd@verizon.net>
890 Jonathan Wakely <jwakely@redhat.com>
892 * include/std/chrono (time_point::operator++)
893 (time_point::operator--): Define.
894 (utc_clock, tai_clock, gps_clock): Forward declare.
895 (utc_time, utc_seconds, tai_time, tai_seconds, gps_time)
896 (gps_seconds): Define.
897 (is_clock<utc_clock>, is_clock<tai_clock>, is_clock<gps_clock>)
898 (is_clock_v<utc_clock>, is_clock_v<tai_clock>)
899 (is_clock_v<gps_clock>): Define these specializations.
900 (leap_second_info): Define.
901 (day, month, year, weekday, weekday_indexed)
902 (weekday_last, month_day, month_day_last, month_weekday)
903 (month_weekday_last, year_month, year_month_day)
904 (year_month_day_last, year_month_weekday, year_month_weekday_last):
905 Declare and later define.
906 (last_spec, last, __detail::__days_per_month)
907 (__detail::__days_per_month, __detail::__last_day): Define.
908 (January, February, March, April, May, June, July, August)
909 (September, October, November, December, Sunday, Monday, Tuesday)
910 (Wednesday, Thursday, Friday, Saturday): Define.
911 (weekday::operator[]): Define out-of-line.
912 (year_month_day::_S_from_days, year_month_day::M_days_since_epoch):
914 (year_month_day::year_month_day, year_month_day::ok): Likewise.
915 (__detail::__pow10, hh_mm_ss): Define.
916 (literals::chrono_literals::operator""d)
917 (literals::chrono_literals::operator""y): Define.
918 (is_am, is_pm, make12, make24): Define.
919 * testsuite/20_util/time_point/4.cc: New test.
920 * testsuite/std/time/day/1.cc: New test.
921 * testsuite/std/time/hh_mm_ss/1.cc: New test.
922 * testsuite/std/time/is_am/1.cc: New test.
923 * testsuite/std/time/is_pm/1.cc: New test.
924 * testsuite/std/time/make12/1.cc: New test.
925 * testsuite/std/time/make24/1.cc: New test.
926 * testsuite/std/time/month/1.cc: New test.
927 * testsuite/std/time/month_day/1.cc: New test.
928 * testsuite/std/time/month_day_last/1.cc: New test.
929 * testsuite/std/time/month_weekday/1.cc: New test.
930 * testsuite/std/time/month_weekday_last/1.cc: New test.
931 * testsuite/std/time/weekday/1.cc: New test.
932 * testsuite/std/time/weekday_indexed/1.cc: New test.
933 * testsuite/std/time/weekday_last/1.cc: New test.
934 * testsuite/std/time/year/1.cc: New test.
935 * testsuite/std/time/year_month/1.cc: New test.
936 * testsuite/std/time/year_month_day/1.cc: New test.
937 * testsuite/std/time/year_month_day_last/1.cc: New test.
938 * testsuite/std/time/year_month_weekday/1.cc: New test.
939 * testsuite/std/time/year_month_weekday_last/1.cc: New test.
941 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
943 * include/std/ranges (join_view): Add deduction guide (LWG 3474).
944 * testsuite/std/ranges/adaptors/join_lwg3474.cc: New test.
946 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
948 * include/bits/iterator_concepts.h (indirectly_readable): Add
949 partial specializations to resolve ambiguities (LWG 3446).
950 * testsuite/24_iterators/associated_types/readable.traits.cc:
951 Check types with both value_type and element_type.
953 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
955 * include/std/ranges (ranges::iota_view::size()): Perform all
956 calculations in the right unsigned types.
957 * testsuite/std/ranges/iota/size.cc: New test.
959 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
962 * include/std/variant (_Variant_storage): Replace implicit
963 conversions from size_t to __index_type with explicit casts.
965 2020-08-24 Jonathan Wakely <jwakely@redhat.com>
967 * testsuite/30_threads/packaged_task/cons/alloc.cc: Run for
968 C++11 and skip for C++17 or later.
970 2020-08-24 Corentin Gay <gay@adacore.com>
972 * testsuite/20_util/shared_ptr/atomic/3.cc: Do not require POSIX
973 threads and add -pthread only on targets supporting them.
974 * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc:
976 * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc:
978 * testsuite/30_threads/async/42819.cc: Likewise.
979 * testsuite/30_threads/async/49668.cc: Likewise.
980 * testsuite/30_threads/async/54297.cc: Likewise.
981 * testsuite/30_threads/async/any.cc: Likewise.
982 * testsuite/30_threads/async/async.cc: Likewise.
983 * testsuite/30_threads/async/except.cc: Likewise.
984 * testsuite/30_threads/async/launch.cc: Likewise.
985 * testsuite/30_threads/async/lwg2021.cc: Likewise.
986 * testsuite/30_threads/async/sync.cc: Likewise. : Likewise.
987 * testsuite/30_threads/call_once/39909.cc: Likewise.
988 * testsuite/30_threads/call_once/49668.cc: Likewise.
989 * testsuite/30_threads/call_once/60497.cc: Likewise.
990 * testsuite/30_threads/call_once/call_once1.cc: Likewise.
991 * testsuite/30_threads/call_once/dr2442.cc: Likewise.
992 * testsuite/30_threads/condition_variable/54185.cc: Likewise.
993 * testsuite/30_threads/condition_variable/cons/1.cc: Likewise.
994 * testsuite/30_threads/condition_variable/members/1.cc: Likewise.
995 * testsuite/30_threads/condition_variable/members/2.cc: Likewise.
996 * testsuite/30_threads/condition_variable/members/3.cc: Likewise.
997 * testsuite/30_threads/condition_variable/members/53841.cc: Likewise.
998 * testsuite/30_threads/condition_variable/members/68519.cc: Likewise.
999 * testsuite/30_threads/condition_variable/native_handle/typesizes.cc:
1001 * testsuite/30_threads/condition_variable_any/50862.cc: Likewise.
1002 * testsuite/30_threads/condition_variable_any/53830.cc: Likewise.
1003 * testsuite/30_threads/condition_variable_any/cond.cc: Likewise.
1004 * testsuite/30_threads/condition_variable_any/cons/1.cc: Likewise.
1005 * testsuite/30_threads/condition_variable_any/members/1.cc: Likewise.
1006 * testsuite/30_threads/condition_variable_any/members/2.cc: Likewise.
1007 * testsuite/30_threads/future/cons/move.cc: Likewise.
1008 * testsuite/30_threads/future/members/45133.cc: Likewise.
1009 * testsuite/30_threads/future/members/get.cc: Likewise.
1010 * testsuite/30_threads/future/members/get2.cc: Likewise.
1011 * testsuite/30_threads/future/members/share.cc: Likewise.
1012 * testsuite/30_threads/future/members/valid.cc: Likewise.
1013 * testsuite/30_threads/future/members/wait.cc: Likewise.
1014 * testsuite/30_threads/future/members/wait_for.cc: Likewise.
1015 * testsuite/30_threads/future/members/wait_until.cc: Likewise.
1016 * testsuite/30_threads/lock/1.cc: Likewise.
1017 * testsuite/30_threads/lock/2.cc: Likewise.
1018 * testsuite/30_threads/lock/3.cc: Likewise.
1019 * testsuite/30_threads/lock/4.cc: Likewise.
1020 * testsuite/30_threads/mutex/cons/1.cc: Likewise.
1021 * testsuite/30_threads/mutex/dest/destructor_locked.cc: Likewise.
1022 * testsuite/30_threads/mutex/lock/1.cc: Likewise.
1023 * testsuite/30_threads/mutex/native_handle/1.cc: Likewise.
1024 * testsuite/30_threads/mutex/native_handle/typesizes.cc: Likewise.
1025 * testsuite/30_threads/mutex/try_lock/1.cc: Likewise.
1026 * testsuite/30_threads/mutex/try_lock/2.cc: Likewise.
1027 * testsuite/30_threads/mutex/unlock/1.cc: Likewise.
1028 * testsuite/30_threads/mutex/unlock/2.cc: Likewise.
1029 * testsuite/30_threads/packaged_task/49668.cc: Likewise.
1030 * testsuite/30_threads/packaged_task/60564.cc: Likewise.
1031 * testsuite/30_threads/packaged_task/cons/1.cc: Likewise.
1032 * testsuite/30_threads/packaged_task/cons/2.cc: Likewise.
1033 * testsuite/30_threads/packaged_task/cons/3.cc: Likewise.
1034 * testsuite/30_threads/packaged_task/cons/56492.cc: Likewise.
1035 * testsuite/30_threads/packaged_task/cons/alloc.cc: Likewise.
1036 * testsuite/30_threads/packaged_task/cons/move.cc: Likewise.
1037 * testsuite/30_threads/packaged_task/cons/move_assign.cc: Likewise.
1038 * testsuite/30_threads/packaged_task/members/at_thread_exit.cc:
1040 * testsuite/30_threads/packaged_task/members/get_future.cc: Likewise.
1041 * testsuite/30_threads/packaged_task/members/get_future2.cc: Likewise.
1042 * testsuite/30_threads/packaged_task/members/invoke.cc: Likewise.
1043 * testsuite/30_threads/packaged_task/members/invoke2.cc: Likewise.
1044 * testsuite/30_threads/packaged_task/members/invoke3.cc: Likewise.
1045 * testsuite/30_threads/packaged_task/members/invoke4.cc: Likewise.
1046 * testsuite/30_threads/packaged_task/members/invoke5.cc: Likewise.
1047 * testsuite/30_threads/packaged_task/members/reset.cc: Likewise.
1048 * testsuite/30_threads/packaged_task/members/reset2.cc: Likewise.
1049 * testsuite/30_threads/packaged_task/members/swap.cc: Likewise.
1050 * testsuite/30_threads/packaged_task/members/valid.cc: Likewise.
1051 * testsuite/30_threads/promise/60966.cc: Likewise.
1052 * testsuite/30_threads/promise/cons/1.cc: Likewise.
1053 * testsuite/30_threads/promise/cons/alloc.cc: Likewise.
1054 * testsuite/30_threads/promise/cons/move.cc: Likewise.
1055 * testsuite/30_threads/promise/cons/move_assign.cc: Likewise.
1056 * testsuite/30_threads/promise/members/at_thread_exit.cc: Likewise.
1057 * testsuite/30_threads/promise/members/at_thread_exit2.cc: Likewise.
1058 * testsuite/30_threads/promise/members/get_future.cc: Likewise.
1059 * testsuite/30_threads/promise/members/get_future2.cc: Likewise.
1060 * testsuite/30_threads/promise/members/set_exception.cc: Likewise.
1061 * testsuite/30_threads/promise/members/set_exception2.cc: Likewise.
1062 * testsuite/30_threads/promise/members/set_value.cc: Likewise.
1063 * testsuite/30_threads/promise/members/set_value2.cc: Likewise.
1064 * testsuite/30_threads/promise/members/set_value3.cc: Likewise.
1065 * testsuite/30_threads/promise/members/swap.cc: Likewise.
1066 * testsuite/30_threads/recursive_mutex/cons/1.cc: Likewise.
1067 * testsuite/30_threads/recursive_mutex/dest/destructor_locked.cc:
1069 * testsuite/30_threads/recursive_mutex/lock/1.cc: Likewise.
1070 * testsuite/30_threads/recursive_mutex/native_handle/1.cc: Likewise.
1071 * testsuite/30_threads/recursive_mutex/native_handle/typesizes.cc:
1073 * testsuite/30_threads/recursive_mutex/try_lock/1.cc: Likewise.
1074 * testsuite/30_threads/recursive_mutex/try_lock/2.cc: Likewise.
1075 * testsuite/30_threads/recursive_mutex/unlock/1.cc: Likewise.
1076 * testsuite/30_threads/recursive_mutex/unlock/2.cc: Likewise.
1077 * testsuite/30_threads/recursive_timed_mutex/cons/1.cc: Likewise.
1078 * testsuite/30_threads/recursive_timed_mutex/dest/destructor_locked.cc:
1080 * testsuite/30_threads/recursive_timed_mutex/lock/1.cc: Likewise.
1081 * testsuite/30_threads/recursive_timed_mutex/lock/2.cc: Likewise.
1082 * testsuite/30_threads/recursive_timed_mutex/native_handle/1.cc:
1084 * testsuite/30_threads/recursive_timed_mutex/native_handle/typesizes.cc:
1086 * testsuite/30_threads/recursive_timed_mutex/try_lock/1.cc: Likewise.
1087 * testsuite/30_threads/recursive_timed_mutex/try_lock/2.cc: Likewise.
1088 * testsuite/30_threads/recursive_timed_mutex/try_lock_for/1.cc:
1090 * testsuite/30_threads/recursive_timed_mutex/try_lock_for/2.cc:
1092 * testsuite/30_threads/recursive_timed_mutex/try_lock_for/3.cc:
1094 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/1.cc:
1096 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/2.cc:
1098 * testsuite/30_threads/recursive_timed_mutex/unlock/1.cc: Likewise.
1099 * testsuite/30_threads/recursive_timed_mutex/unlock/2.cc: Likewise.
1100 * testsuite/30_threads/shared_future/cons/move.cc: Likewise.
1101 * testsuite/30_threads/shared_future/members/45133.cc: Likewise.
1102 * testsuite/30_threads/shared_future/members/get.cc: Likewise.
1103 * testsuite/30_threads/shared_future/members/get2.cc: Likewise.
1104 * testsuite/30_threads/shared_future/members/valid.cc: Likewise.
1105 * testsuite/30_threads/shared_future/members/wait.cc: Likewise.
1106 * testsuite/30_threads/shared_future/members/wait_for.cc: Likewise.
1107 * testsuite/30_threads/shared_future/members/wait_until.cc: Likewise.
1108 * testsuite/30_threads/shared_lock/cons/1.cc: Likewise.
1109 * testsuite/30_threads/shared_lock/cons/2.cc: Likewise.
1110 * testsuite/30_threads/shared_lock/cons/3.cc: Likewise.
1111 * testsuite/30_threads/shared_lock/cons/4.cc: Likewise.
1112 * testsuite/30_threads/shared_lock/cons/5.cc: Likewise.
1113 * testsuite/30_threads/shared_lock/cons/6.cc: Likewise.
1114 * testsuite/30_threads/shared_lock/locking/1.cc: Likewise.
1115 * testsuite/30_threads/shared_lock/locking/2.cc: Likewise.
1116 * testsuite/30_threads/shared_lock/locking/3.cc: Likewise.
1117 * testsuite/30_threads/shared_lock/locking/4.cc: Likewise.
1118 * testsuite/30_threads/shared_lock/modifiers/1.cc: Likewise.
1119 * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
1120 * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
1121 * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
1122 * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
1123 * testsuite/30_threads/shared_timed_mutex/cons/1.cc: Likewise.
1124 * testsuite/30_threads/shared_timed_mutex/try_lock/1.cc: Likewise.
1125 * testsuite/30_threads/shared_timed_mutex/try_lock/2.cc: Likewise.
1126 * testsuite/30_threads/shared_timed_mutex/try_lock/3.cc: Likewise.
1127 * testsuite/30_threads/shared_timed_mutex/unlock/1.cc: Likewise.
1128 * testsuite/30_threads/this_thread/1.cc: Likewise.
1129 * testsuite/30_threads/this_thread/sleep_for-mt.cc: Likewise.
1130 * testsuite/30_threads/this_thread/sleep_until-mt.cc: Likewise.
1131 * testsuite/30_threads/thread/cons/1.cc: Likewise.
1132 * testsuite/30_threads/thread/cons/2.cc: Likewise.
1133 * testsuite/30_threads/thread/cons/3.cc: Likewise.
1134 * testsuite/30_threads/thread/cons/4.cc: Likewise.
1135 * testsuite/30_threads/thread/cons/49668.cc: Likewise.
1136 * testsuite/30_threads/thread/cons/5.cc: Likewise.
1137 * testsuite/30_threads/thread/cons/6.cc: Likewise.
1138 * testsuite/30_threads/thread/cons/7.cc: Likewise.
1139 * testsuite/30_threads/thread/cons/8.cc: Likewise.
1140 * testsuite/30_threads/thread/cons/9.cc: Likewise.
1141 * testsuite/30_threads/thread/cons/moveable.cc: Likewise.
1142 * testsuite/30_threads/thread/cons/terminate.cc: Likewise.
1143 * testsuite/30_threads/thread/members/1.cc: Likewise.
1144 * testsuite/30_threads/thread/members/2.cc: Likewise.
1145 * testsuite/30_threads/thread/members/3.cc: Likewise.
1146 * testsuite/30_threads/thread/members/4.cc: Likewise.
1147 * testsuite/30_threads/thread/members/5.cc: Likewise.
1148 * testsuite/30_threads/thread/members/hardware_concurrency.cc:
1150 * testsuite/30_threads/thread/native_handle/typesizes.cc: Likewise.
1151 * testsuite/30_threads/thread/swap/1.cc: Likewise.
1152 * testsuite/30_threads/timed_mutex/cons/1.cc: Likewise.
1153 * testsuite/30_threads/timed_mutex/dest/destructor_locked.cc:
1155 * testsuite/30_threads/timed_mutex/lock/1.cc: Likewise.
1156 * testsuite/30_threads/timed_mutex/native_handle/1.cc: Likewise.
1157 * testsuite/30_threads/timed_mutex/native_handle/typesizes.cc:
1159 * testsuite/30_threads/timed_mutex/try_lock/1.cc: Likewise.
1160 * testsuite/30_threads/timed_mutex/try_lock/2.cc: Likewise.
1161 * testsuite/30_threads/timed_mutex/try_lock_for/1.cc: Likewise.
1162 * testsuite/30_threads/timed_mutex/try_lock_for/2.cc: Likewise.
1163 * testsuite/30_threads/timed_mutex/try_lock_for/3.cc: Likewise.
1164 * testsuite/30_threads/timed_mutex/try_lock_until/1.cc: Likewise.
1165 * testsuite/30_threads/timed_mutex/try_lock_until/2.cc: Likewise.
1166 * testsuite/30_threads/timed_mutex/try_lock_until/57641.cc: Likewise.
1167 * testsuite/30_threads/timed_mutex/unlock/1.cc: Likewise.
1168 * testsuite/30_threads/timed_mutex/unlock/2.cc: Likewise.
1169 * testsuite/30_threads/try_lock/1.cc: Likewise.
1170 * testsuite/30_threads/try_lock/2.cc: Likewise.
1171 * testsuite/30_threads/try_lock/3.cc: Likewise.
1172 * testsuite/30_threads/try_lock/4.cc: Likewise.
1173 * testsuite/30_threads/unique_lock/cons/1.cc: Likewise.
1174 * testsuite/30_threads/unique_lock/cons/2.cc: Likewise.
1175 * testsuite/30_threads/unique_lock/cons/3.cc: Likewise.
1176 * testsuite/30_threads/unique_lock/cons/4.cc: Likewise.
1177 * testsuite/30_threads/unique_lock/cons/5.cc: Likewise.
1178 * testsuite/30_threads/unique_lock/cons/6.cc: Likewise.
1179 * testsuite/30_threads/unique_lock/locking/1.cc: Likewise.
1180 * testsuite/30_threads/unique_lock/locking/2.cc: Likewise.
1181 * testsuite/30_threads/unique_lock/locking/3.cc: Likewise.
1182 * testsuite/30_threads/unique_lock/locking/4.cc: Likewise.
1183 * testsuite/30_threads/unique_lock/modifiers/1.cc: Likewise.
1185 2020-08-21 Jonathan Wakely <jwakely@redhat.com>
1188 * testsuite/17_intro/headers/c++1998/all_attributes.cc: Do not
1189 test "cold" on darwin.
1190 * testsuite/17_intro/headers/c++2011/all_attributes.cc:
1192 * testsuite/17_intro/headers/c++2014/all_attributes.cc:
1194 * testsuite/17_intro/headers/c++2017/all_attributes.cc:
1196 * testsuite/17_intro/headers/c++2020/all_attributes.cc:
1199 2020-08-21 Jonathan Wakely <jwakely@redhat.com>
1202 * testsuite/25_algorithms/pstl/feature_test-2.cc: Require
1203 tbb-backend effective target.
1204 * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
1205 * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
1206 * testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
1208 2020-08-20 Jonathan Wakely <jwakely@redhat.com>
1210 * include/bits/iterator_concepts.h [__STRICT_ANSI__]
1211 (incrementable_traits<__int128>): Define specialization.
1212 (incrementable_traits<unsigned __int128>): Likewise.
1213 * testsuite/std/ranges/iota/96042.cc: Test iota_view with
1216 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
1217 Patrick Palka <ppalka@redhat.com>
1220 * include/bits/range_access.h (__detail::__to_unsigned_like):
1221 Do not use make_unsigned_t<T> in the return type, as it can
1222 result in an error before the integral<T> constraint is checked.
1223 [__STRICT_ANSI__]: Add overloads for 128-bit integer types.
1224 (__detail::__make_unsigned_like_t): Define as the return type
1225 of __to_unsigned_like.
1226 * testsuite/std/ranges/subrange/96042.cc: New test.
1228 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
1230 * include/bits/stl_tree.h (operator!=, operator>, operator<=)
1231 (operator>=): Remove deprecated functions.
1233 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
1236 * include/ext/numeric_traits.h (__is_integer_nonstrict): New
1237 trait which is true for 128-bit integers even in strict modes.
1238 (__numeric_traits_integer, __numeric_traits): Use
1239 __is_integer_nonstrict instead of __is_integer.
1240 * include/std/limits [__STRICT_ANSI__ && __SIZEOF_INT128__]
1241 (numeric_limits<__int128>, (numeric_limits<unsigned __int128>):
1243 * testsuite/std/ranges/iota/96042.cc: New test.
1245 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
1247 * include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST)
1248 (_GLIBCXX11_DEPRECATED, _GLIBCXX11_DEPRECATED_SUGGEST)
1249 (_GLIBCXX17_DEPRECATED_SUGGEST, _GLIBCXX20_DEPRECATED_SUGGEST):
1250 Add new macros to comment.
1252 2020-08-19 Patrick Palka <ppalka@redhat.com>
1254 * include/Makefile.am (bits_headers): Add new header
1255 <bits/max_size_type.h>.
1256 * include/Makefile.in: Regenerate.
1257 * include/bits/iterator_concepts.h
1258 (ranges::__detail::__max_diff_type): Remove definition, replace
1259 with forward declaration of class __max_diff_type.
1260 (__detail::__max_size_type): Remove definition, replace with
1261 forward declaration of class __max_size_type.
1262 (__detail::__is_unsigned_int128, __is_signed_int128)
1263 (__is_int128): New concepts.
1264 (__detail::__is_integer_like): Accept __int128 and unsigned
1266 (__detail::__is_signed_integer_like): Accept __int128.
1267 * include/bits/max_size_type.h: New header.
1268 * include/bits/range_access.h: Include <bits/max_size_type.h>.
1269 (__detail::__to_unsigned_like): Two new overloads.
1270 * testsuite/std/ranges/iota/difference_type.cc: New test.
1271 * testsuite/std/ranges/iota/max_size_type.cc: New test.
1273 2020-08-19 Jonathan Wakely <jwakely@redhat.com>
1275 * include/bits/c++config (_GLIBCXX_DEPRECATED): Define for all
1277 (_GLIBCXX_DEPRECATED_SUGGEST): New macro for "use 'foo' instead"
1278 message in deprecated warnings.
1279 (_GLIBCXX11_DEPRECATED, _GLIBCXX11_DEPRECATED_SUGGEST): New
1280 macros for marking features deprecated in C++11.
1281 (_GLIBCXX17_DEPRECATED_SUGGEST, _GLIBCXX20_DEPRECATED_SUGGEST):
1283 * include/backward/auto_ptr.h (auto_ptr_ref, auto_ptr<void>):
1284 Use _GLIBCXX11_DEPRECATED instead of _GLIBCXX_DEPRECATED.
1285 (auto_ptr): Use _GLIBCXX11_DEPRECATED_SUGGEST.
1286 * include/backward/binders.h (binder1st, binder2nd): Likewise.
1287 * include/bits/ios_base.h (io_state, open_mode, seek_dir)
1288 (streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST.
1289 * include/std/streambuf (stossc): Replace C++11 attribute
1290 with _GLIBCXX_DEPRECATED_SUGGEST.
1291 * include/std/type_traits (__is_nullptr_t): Use
1292 _GLIBCXX_DEPRECATED_SUGGEST instead of _GLIBCXX_DEPRECATED.
1293 * testsuite/27_io/types/1.cc: Check for deprecated warnings.
1294 Also check for io_state, open_mode and seek_dir typedefs.
1296 2020-08-19 Antony Polukhin <antoshkka@gmail.com>
1299 * include/std/type_traits (invoke_result, is_nothrow_invocable_r)
1300 Add static_asserts to make sure that the argument of the type
1301 trait is not misused with incomplete types.
1302 (is_swappable_with, is_nothrow_swappable_with): Add static_asserts
1303 to make sure that the first and second arguments of the type trait
1304 are not misused with incomplete types.
1305 * testsuite/20_util/invoke_result/incomplete_neg.cc: New test.
1306 * testsuite/20_util/is_nothrow_invocable/incomplete_neg.cc: New test.
1307 * testsuite/20_util/is_nothrow_swappable/incomplete_neg.cc: New test.
1308 * testsuite/20_util/is_nothrow_swappable_with/incomplete_neg.cc: New
1310 * testsuite/20_util/is_swappable_with/incomplete_neg.cc: New test.
1312 2020-08-18 David Edelsohn <dje.gcc@gmail.com>
1313 Clement Chigot <clement.chigot@atos.net>
1315 * config/os/aix/t-aix: Add complementary mode object files to
1318 2020-08-18 Jonathan Wakely <jwakely@redhat.com>
1320 * testsuite/17_intro/headers/c++1998/all_attributes.cc: Check
1321 "cold" isn't used in the library. Also check <cxxabi.h>.
1322 * testsuite/17_intro/headers/c++2011/all_attributes.cc:
1324 * testsuite/17_intro/headers/c++2014/all_attributes.cc:
1326 * testsuite/17_intro/headers/c++2017/all_attributes.cc:
1328 * testsuite/17_intro/headers/c++2020/all_attributes.cc:
1331 2020-08-18 Jonathan Wakely <jwakely@redhat.com>
1334 * include/std/future (__future_base::_S_make_deferred_state)
1335 (__future_base::_S_make_async_state): Remove.
1336 (__future_base::_Deferred_state): Change constructor to accept a
1337 parameter pack of arguments and forward them to the call
1339 (__future_base::_Async_state_impl): Likewise. Replace lambda
1340 expression with a named member function.
1341 (async): Construct state object directly from the arguments,
1342 instead of using thread::__make_invoker, _S_make_deferred_state
1343 and _S_make_async_state. Move shared state into the returned
1345 * include/std/thread (thread::_Call_wrapper): New alias
1346 template for use by constructor and std::async.
1347 (thread::thread(Callable&&, Args&&...)): Create state object
1348 directly instead of using _S_make_state.
1349 (thread::__make_invoker, thread::__decayed_tuple)
1350 (thread::_S_make_state): Remove.
1351 * testsuite/30_threads/async/69724.cc: New test.
1353 2020-08-17 Jonathan Wakely <jwakely@redhat.com>
1358 * include/std/tuple [__has_cpp_attribute(no_unique_address)]
1359 (_Head_base<Idx, Head, true>): New definition of the partial
1360 specialization, using [[no_unique_address]] instead of
1362 * testsuite/libstdc++-prettyprinters/48362.cc: Adjust expected
1364 * testsuite/20_util/tuple/comparison_operators/93147.cc: New test.
1365 * testsuite/20_util/tuple/creation_functions/55713.cc: New test.
1366 * testsuite/20_util/tuple/element_access/71096.cc: New test.
1368 2020-08-14 Lewis Hyatt <lhyatt@gmail.com>
1370 * testsuite/lib/libstdc++.exp: Use the new option
1371 -fdiagnostics-plain-output.
1373 2020-08-13 Jonathan Wakely <jwakely@redhat.com>
1375 * acinclude.m4 (GLIBCXX_ENABLE_CHEADERS): Warn if the c_std
1376 option is used and fail unless --enable-cheaders-obsolete is
1378 * configure: Regenerate.
1380 2020-08-12 Jonathan Wakely <jwakely@redhat.com>
1383 * include/bits/basic_string.h (operator=(basic_string&&)): Check
1384 for self-move before copying with char_traits::copy.
1385 * include/bits/hashtable.h (operator=(_Hashtable&&)): Check for
1387 * include/bits/stl_deque.h (_M_move_assign1(deque&&, false_type)):
1388 Check for equal allocators.
1389 * include/bits/stl_list.h (_M_move_assign(list&&, true_type)):
1390 Call clear() instead of _M_clear().
1391 * include/debug/formatter.h (__msg_self_move_assign): Change
1393 * include/debug/macros.h (__glibcxx_check_self_move_assign):
1394 (_GLIBCXX_DEBUG_VERIFY): Remove.
1395 * include/debug/safe_container.h (operator=(_Safe_container&&)):
1396 Remove assertion check for safe move and make it well-defined.
1397 * include/debug/safe_iterator.h (operator=(_Safe_iterator&&)):
1398 Remove assertion check for self-move.
1399 * include/debug/safe_local_iterator.h
1400 (operator=(_Safe_local_iterator&&)): Likewise.
1401 * testsuite/21_strings/basic_string/cons/char/self_move.cc: New test.
1402 * testsuite/23_containers/deque/cons/self_move.cc: New test.
1403 * testsuite/23_containers/forward_list/cons/self_move.cc: New test.
1404 * testsuite/23_containers/list/cons/self_move.cc: New test.
1405 * testsuite/23_containers/set/cons/self_move.cc: New test.
1406 * testsuite/23_containers/unordered_set/cons/self_move.cc: New test.
1407 * testsuite/23_containers/vector/cons/self_move.cc: New test.
1409 2020-08-11 François Dumont <fdumont@gcc.gnu.org>
1412 * include/bits/forward_list.tcc (forward_list<>::remove): Collect nodes
1413 to destroy in an intermediate forward_list.
1414 (forward_list<>::remove_if, forward_list<>::unique): Likewise.
1415 * include/bits/list.tcc (list<>::remove, list<>::unique): Likewise.
1416 (list<>::remove_if): Likewise.
1417 * include/debug/forward_list (forward_list<>::_M_erase_after): Remove.
1418 (forward_list<>::erase_after): Adapt.
1419 (forward_list<>::remove, forward_list<>::remove_if): Collect nodes to
1420 destroy in an intermediate forward_list.
1421 (forward_list<>::unique): Likewise.
1422 * include/debug/list (list<>::remove, list<>::unique): Likewise.
1423 (list<>::remove_if): Likewise.
1424 * testsuite/23_containers/forward_list/operations/91620.cc: New test.
1425 * testsuite/23_containers/list/operations/91620.cc: New test.
1427 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1429 * testsuite/30_threads/thread/cons/84535.cc: Use a custom
1431 * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise.
1433 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1436 * include/experimental/executor [!_GLIBCXX_HAS_GTHREADS]:
1437 (execution_context::mutex_type): Define dummy mutex type.
1438 (system_context): Use execution_context::mutex_type.
1439 (system_context) [!_GLIBCXX_HAS_GTHREADS]: Define dummy
1440 thread and condition variable types.
1441 [!_GLIBCXX_HAS_GTHREADS] (system_context::_M_run()): Do not
1443 (system_context::_M_post) [!_GLIBCXX_HAS_GTHREADS]: Throw
1444 an exception when threads aren't available.
1445 (strand::running_in_this_thread()): Defer to _M_state.
1446 (strand::_State::running_in_this_thread()): New function.
1447 (use_future_t): Do not depend on _GLIBCXX_USE_C99_STDINT_TR1.
1448 * include/experimental/io_context (io_context): Use the
1449 execution_context::mutex_type alias. Replace stack of thread
1451 * testsuite/experimental/net/execution_context/use_service.cc:
1452 Enable test for non-pthread targets.
1454 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1456 * include/experimental/executor (system_context::a__tag): Make
1457 default constructor explicit.
1459 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1461 * include/experimental/executor (system_context::_M_run()):
1463 * testsuite/experimental/net/system_context/1.cc: New test.
1465 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1467 * include/std/stop_token: Check _GLIBCXX_HAS_GTHREADS using
1468 #ifdef instead of #if.
1469 (stop_token::_S_yield()): Check _GLIBCXX_HAS_GTHREADS before
1470 using __gthread_yield.
1472 2020-08-11 Jonathan Wakely <jwakely@redhat.com>
1474 * include/std/thread [!_GLIBCXX_HAS_GTHREADS] (this_thread::yield)
1475 (this_thread::sleep_until): Define.
1476 [!_GLIBCXX_HAS_GTHREADS] (this_thread::sleep_for): Define. Replace
1477 use of __gthread_time_t typedef with timespec.
1478 * src/c++11/thread.cc [!_GLIBCXX_HAS_GTHREADS] (__sleep_for):
1480 * testsuite/30_threads/this_thread/2.cc: Moved to...
1481 * testsuite/30_threads/this_thread/yield.cc: ...here.
1482 * testsuite/30_threads/this_thread/3.cc: Moved to...
1483 * testsuite/30_threads/this_thread/sleep_for-mt.cc: ...here.
1484 * testsuite/30_threads/this_thread/4.cc: Moved to...
1485 * testsuite/30_threads/this_thread/sleep_until-mt.cc: ...here.
1486 * testsuite/30_threads/this_thread/58038.cc: Add
1488 * testsuite/30_threads/this_thread/60421.cc: Likewise.
1489 * testsuite/30_threads/this_thread/sleep_for.cc: New test.
1490 * testsuite/30_threads/this_thread/sleep_until.cc: New test.
1492 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1495 * src/c++17/fs_ops.cc (read_symlink): Use posix::lstat instead
1496 of calling ::lstat directly.
1497 * src/filesystem/ops.cc (read_symlink): Likewise.
1499 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1501 * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__):
1502 Use gdb.Type.strip_typedefs().
1503 * testsuite/libstdc++-prettyprinters/compat.cc: Use a typedef in
1504 the emulated old type.
1506 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1509 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Do not depend on
1510 $enable_libstdcxx_filesystem_ts.
1511 * configure: Regenerate.
1513 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1516 * include/bits/stl_iterator.h (inserter): Do not deduce
1517 iterator type (LWG 561).
1518 * testsuite/24_iterators/insert_iterator/dr561.cc: New test.
1520 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1522 * include/bits/basic_string.tcc [_GLIBCXX_USE_CXX11_ABI=0]
1523 (basic_string::reserve()): Do nothing if exceptions are not
1526 2020-08-10 Jonathan Wakely <jwakely@redhat.com>
1529 * src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS]
1530 (stat_type): Change to __stat64.
1531 (stat): Use _wstat64.
1533 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
1536 * include/debug/bitset (bitset::operator==): Call _M_base() on
1538 (bitset::operator!=): Likewise, but don't define it at all when
1539 default comparisons are supported by the compiler.
1540 * testsuite/23_containers/bitset/operations/96303.cc: New test.
1542 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
1544 * testsuite/18_support/comparisons/algorithms/partial_order.cc:
1545 Replace VERIFY with static_assert where the compiler now
1547 * testsuite/18_support/comparisons/algorithms/weak_order.cc:
1550 2020-08-07 Jonathan Wakely <jwakely@redhat.com>
1552 * config/abi/pre/gnu.ver: Fix wildcards for wstring symbols.
1554 2020-08-06 Andrew Luo <andrewluotechnologies@outlook.com>
1555 Jonathan Wakely <jwakely@redhat.com>
1557 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Use less greedy
1558 patterns for basic_string members.
1559 (GLIBCXX_3.4.29): Export new basic_string::reserve symbols.
1560 * doc/xml/manual/status_cxx2020.xml: Update P0966 status.
1561 * include/bits/basic_string.h (shrink_to_fit()): Call reserve().
1562 (reserve(size_type)): Remove default argument.
1563 (reserve()): Declare new overload.
1564 [!_GLIBCXX_USE_CXX11_ABI] (shrink_to_fit, reserve): Likewise.
1565 * include/bits/basic_string.tcc (reserve(size_type)): Remove
1566 support for shrinking capacity.
1567 (reserve()): Perform shrink-to-fit operation.
1568 [!_GLIBCXX_USE_CXX11_ABI] (reserve): Likewise.
1569 * testsuite/21_strings/basic_string/capacity/1.cc: Adjust to
1570 reflect new behavior.
1571 * testsuite/21_strings/basic_string/capacity/char/1.cc:
1573 * testsuite/21_strings/basic_string/capacity/char/18654.cc:
1575 * testsuite/21_strings/basic_string/capacity/char/2.cc:
1577 * testsuite/21_strings/basic_string/capacity/wchar_t/1.cc:
1579 * testsuite/21_strings/basic_string/capacity/wchar_t/18654.cc:
1581 * testsuite/21_strings/basic_string/capacity/wchar_t/2.cc:
1584 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
1586 * include/bits/basic_string.tcc
1587 (operator>>(basic_istream&, basic_string&)): Do not set eofbit
1588 if extraction stopped after in.width() characters.
1589 * src/c++98/istream-string.cc (operator>>(istream&, string&)):
1591 * include/bits/istream.tcc (__istream_extract): Do not set
1592 eofbit if extraction stopped after n-1 characters.
1593 * src/c++98/istream.cc (__istream_extract): Likewise.
1594 * testsuite/21_strings/basic_string/inserters_extractors/char/13.cc: New test.
1595 * testsuite/21_strings/basic_string/inserters_extractors/wchar_t/13.cc: New test.
1596 * testsuite/27_io/basic_istream/extractors_character/char/5.cc: New test.
1597 * testsuite/27_io/basic_istream/extractors_character/wchar_t/5.cc: New test.
1599 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
1602 * src/c++17/fs_ops.cc (fs::read_symlink): Return an error
1603 immediately for non-symlinks.
1604 * src/filesystem/ops.cc (fs::read_symlink): Likewise.
1606 2020-08-06 Jonathan Wakely <jwakely@redhat.com>
1608 * include/std/istream (operator>>(istream&, char*)): Add
1609 attributes to get warnings for pointers that are null or known
1610 to point to the end of a buffer. Request upper bound from
1611 __builtin_object_size check and handle zero-sized buffer case.
1612 (operator>>(istream&, signed char))
1613 (operator>>(istream&, unsigned char*)): Add attributes.
1614 * testsuite/27_io/basic_istream/extractors_character/char/overflow.cc:
1615 Check extracting into the middle of a buffer.
1616 * testsuite/27_io/basic_istream/extractors_character/wchar_t/overflow.cc: New test.
1618 2020-08-05 Jonathan Wakely <jwakely@redhat.com>
1620 * include/std/atomic (atomic<T>::store): Reformat.
1622 2020-08-05 Jonathan Wakely <jwakely@redhat.com>
1624 * doc/xml/manual/status_cxx2017.xml: Replace oneAPI DPC++ link
1625 with LLVM repo for PSTL.
1626 * doc/html/manual/status.html: Regenerate.
1628 2020-08-05 Jonathan Wakely <jwakely@redhat.com>
1630 * config/abi/pre/gnu.ver (GLIBCXX_3.4.29): Export new symbols.
1631 * include/bits/istream.tcc (__istream_extract): New function
1632 template implementing both of operator>>(istream&, char*) and
1633 operator>>(istream&, char(&)[N]). Add explicit instantiation
1634 declaration for it. Remove explicit instantiation declarations
1635 for old function templates.
1636 * include/std/istream (__istream_extract): Declare.
1637 (operator>>(basic_istream<C,T>&, C*)): Define inline and simply
1638 call __istream_extract.
1639 (operator>>(basic_istream<char,T>&, signed char*)): Likewise.
1640 (operator>>(basic_istream<char,T>&, unsigned char*)): Likewise.
1641 (operator>>(basic_istream<C,T>&, C(7)[N])): Define for LWG 2499.
1642 (operator>>(basic_istream<char,T>&, signed char(&)[N])):
1644 (operator>>(basic_istream<char,T>&, unsigned char(&)[N])):
1646 * include/std/streambuf (basic_streambuf): Declare char overload
1647 of __istream_extract as a friend.
1648 * src/c++11/istream-inst.cc: Add explicit instantiation
1649 definition for wchar_t overload of __istream_extract. Remove
1650 explicit instantiation definitions of old operator>> overloads
1651 for versioned-namespace build.
1652 * src/c++98/istream.cc (operator>>(istream&, char*)): Replace
1653 with __istream_extract(istream&, char*, streamsize).
1654 * testsuite/27_io/basic_istream/extractors_character/char/3.cc:
1655 Do not use variable-length array.
1656 * testsuite/27_io/basic_istream/extractors_character/char/4.cc:
1657 Do not run test for C++20.
1658 * testsuite/27_io/basic_istream/extractors_character/char/9555-ic.cc:
1659 Do not test writing to pointers for C++20.
1660 * testsuite/27_io/basic_istream/extractors_character/char/9826.cc:
1661 Use array instead of pointer.
1662 * testsuite/27_io/basic_istream/extractors_character/wchar_t/3.cc:
1663 Do not use variable-length array.
1664 * testsuite/27_io/basic_istream/extractors_character/wchar_t/4.cc:
1665 Do not run test for C++20.
1666 * testsuite/27_io/basic_istream/extractors_character/wchar_t/9555-ic.cc:
1667 Do not test writing to pointers for C++20.
1668 * testsuite/27_io/basic_istream/extractors_character/char/lwg2499.cc:
1670 * testsuite/27_io/basic_istream/extractors_character/char/lwg2499_neg.cc:
1672 * testsuite/27_io/basic_istream/extractors_character/char/overflow.cc:
1674 * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499.cc:
1676 * testsuite/27_io/basic_istream/extractors_character/wchar_t/lwg2499_neg.cc:
1679 2020-08-01 Gerald Pfeifer <gerald@pfeifer.com>
1681 * doc/xml/manual/using_exceptions.xml: Move www.stroustrup.com to
1683 * doc/html/manual/using_exceptions.html: Regenerate.
1685 2020-07-31 Gerald Pfeifer <gerald@pfeifer.com>
1687 * doc/xml/manual/status_cxx2017.xml: ParallelSTL is now part
1688 of oneAPI DPC++ Library on Github.
1689 * doc/html/manual/status.html: Regenerate.
1691 2020-07-31 François Dumont <fdumont@gcc.gnu.org>
1693 * include/bits/stl_bvector.h
1694 [_GLIBCXX_INLINE_VERSION](_Bvector_impl_data::_M_start): Define as
1696 (_Bvector_impl_data(const _Bvector_impl_data&)): Default.
1697 (_Bvector_impl_data(_Bvector_impl_data&&)): Delegate to latter.
1698 (_Bvector_impl_data::operator=(const _Bvector_impl_data&)): Default.
1699 (_Bvector_impl_data::_M_move_data(_Bvector_impl_data&&)): Use latter.
1700 (_Bvector_impl_data::_M_reset()): Likewise.
1701 (_Bvector_impl_data::_M_swap_data): New.
1702 (_Bvector_impl::_Bvector_impl(_Bvector_impl&&)): Implement explicitely.
1703 (_Bvector_impl::_Bvector_impl(_Bit_alloc_type&&, _Bvector_impl&&)): New.
1704 (_Bvector_base::_Bvector_base(_Bvector_base&&, const allocator_type&)):
1706 (vector::vector(vector&&, const allocator_type&, true_type)): New, use
1708 (vector::vector(vector&&, const allocator_type&, false_type)): New.
1709 (vector::vector(vector&&, const allocator_type&)): Use latters.
1710 (vector::vector(const vector&, const allocator_type&)): Adapt.
1711 [__cplusplus >= 201103](vector::vector(_InputIt, _InputIt,
1712 const allocator_type&)): Use _M_initialize_range.
1713 (vector::operator[](size_type)): Use iterator operator[].
1714 (vector::operator[](size_type) const): Use const_iterator operator[].
1715 (vector::swap(vector&)): Add assertions on allocators. Use _M_swap_data.
1716 [__cplusplus >= 201103](vector::insert(const_iterator, _InputIt,
1717 _InputIt)): Use _M_insert_range.
1718 (vector::_M_initialize(size_type)): Adapt.
1719 [__cplusplus >= 201103](vector::_M_initialize_dispatch): Remove.
1720 [__cplusplus >= 201103](vector::_M_insert_dispatch): Remove.
1721 * python/libstdcxx/v6/printers.py (StdVectorPrinter._iterator): Stop
1722 using start _M_offset.
1723 (StdVectorPrinter.to_string): Likewise.
1724 * testsuite/23_containers/vector/bool/allocator/swap.cc: Adapt.
1725 * testsuite/23_containers/vector/bool/cons/noexcept_move_construct.cc:
1728 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1730 * testsuite/27_io/basic_istream/ignore/char/94749.cc: Use 0
1732 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc:
1735 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1737 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc:
1738 Move struct to namespace scope.
1740 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1742 * testsuite/26_numerics/numbers/float128.cc: Check
1743 __STRICT_ANSI__ before using __float128.
1744 * testsuite/std/concepts/concepts.lang/concept.arithmetic/floating_point.cc:
1747 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1749 * testsuite/18_support/set_terminate.cc: Require C++11 or
1751 * testsuite/28_regex/simple_c++11.cc: Likewise.
1752 * testsuite/tr1/headers/c++200x/complex.cc: Likewise.
1753 * testsuite/24_iterators/headers/iterator/synopsis.cc:
1754 Require C++14 or lower.
1756 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1758 * testsuite/23_containers/span/back_assert_neg.cc: Split c++2a
1759 effective-target from xfail selector.
1760 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
1761 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
1762 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
1763 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
1764 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
1765 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
1766 * testsuite/23_containers/span/subspan_2_assert_neg.cc:
1768 * testsuite/23_containers/span/subspan_3_assert_neg.cc:
1770 * testsuite/23_containers/span/subspan_4_assert_neg.cc:
1772 * testsuite/23_containers/span/subspan_5_assert_neg.cc:
1774 * testsuite/23_containers/span/subspan_6_assert_neg.cc:
1776 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
1778 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1780 * testsuite/20_util/reference_wrapper/83427.cc: Adjust
1781 effective-target to specific language mode only.
1782 * testsuite/24_iterators/headers/iterator/range_access_c++11.cc:
1784 * testsuite/24_iterators/headers/iterator/range_access_c++14.cc:
1786 * testsuite/24_iterators/headers/iterator/synopsis_c++11.cc:
1788 * testsuite/24_iterators/headers/iterator/synopsis_c++14.cc:
1790 * testsuite/26_numerics/valarray/69116.cc:
1792 * testsuite/30_threads/headers/condition_variable/std_c++0x_neg.cc:
1793 Remove whitespace at end of file.
1794 * testsuite/30_threads/headers/future/std_c++0x_neg.cc:
1797 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
1799 * testsuite/17_intro/headers/c++2017/all_attributes.cc: Add
1800 c++17 effective-target.
1801 * testsuite/17_intro/headers/c++2017/all_no_exceptions.cc:
1803 * testsuite/17_intro/headers/c++2017/all_no_rtti.cc: Likewise.
1804 * testsuite/17_intro/headers/c++2017/all_pedantic_errors.cc:
1806 * testsuite/17_intro/headers/c++2017/operator_names.cc:
1808 * testsuite/17_intro/headers/c++2017/stdc++.cc: Likewise.
1809 * testsuite/17_intro/headers/c++2017/stdc++_multiple_inclusion.cc:
1811 * testsuite/18_support/uncaught_exceptions/uncaught_exceptions.cc:
1813 * testsuite/19_diagnostics/error_code/is_error_code_v.cc:
1815 * testsuite/20_util/any/assign/1.cc: Likewise.
1816 * testsuite/20_util/any/assign/2.cc: Likewise.
1817 * testsuite/20_util/any/assign/emplace.cc: Likewise.
1818 * testsuite/20_util/any/assign/exception.cc: Likewise.
1819 * testsuite/20_util/any/assign/self.cc: Likewise.
1820 * testsuite/20_util/any/cons/1.cc: Likewise.
1821 * testsuite/20_util/any/cons/2.cc: Likewise.
1822 * testsuite/20_util/any/cons/aligned.cc: Likewise.
1823 * testsuite/20_util/any/cons/explicit.cc: Likewise.
1824 * testsuite/20_util/any/cons/in_place.cc: Likewise.
1825 * testsuite/20_util/any/cons/nontrivial.cc: Likewise.
1826 * testsuite/20_util/any/make_any.cc: Likewise.
1827 * testsuite/20_util/any/misc/any_cast.cc: Likewise.
1828 * testsuite/20_util/any/misc/any_cast_no_rtti.cc: Likewise.
1829 * testsuite/20_util/any/misc/swap.cc: Likewise.
1830 * testsuite/20_util/any/modifiers/1.cc: Likewise.
1831 * testsuite/20_util/any/observers/type.cc: Likewise.
1832 * testsuite/20_util/any/requirements.cc: Likewise.
1833 * testsuite/20_util/any/typedefs.cc: Likewise.
1834 * testsuite/20_util/as_const/1.cc: Likewise.
1835 * testsuite/20_util/as_const/rvalue_neg.cc: Likewise.
1836 * testsuite/20_util/bind/is_placeholder_v.cc: Likewise.
1837 * testsuite/20_util/bool_constant/requirements.cc: Likewise.
1838 * testsuite/20_util/duration/requirements/treat_as_floating_point_v.cc:
1840 * testsuite/20_util/duration_cast/rounding.cc: Likewise.
1841 * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
1843 * testsuite/20_util/function_objects/invoke/59768.cc: Likewise.
1844 * testsuite/20_util/function_objects/not_fn/1.cc: Likewise.
1845 * testsuite/20_util/function_objects/searchers.cc: Likewise.
1846 * testsuite/20_util/in_place/requirements.cc: Likewise.
1847 * testsuite/20_util/is_invocable/requirements/explicit_instantiation.cc:
1849 * testsuite/20_util/is_invocable/requirements/typedefs.cc:
1851 * testsuite/20_util/is_invocable/value.cc: Likewise.
1852 * testsuite/20_util/is_nothrow_invocable/requirements/explicit_instantiation.cc:
1854 * testsuite/20_util/is_nothrow_invocable/requirements/typedefs.cc:
1856 * testsuite/20_util/is_nothrow_swappable/requirements/explicit_instantiation.cc:
1858 * testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
1860 * testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
1861 * testsuite/20_util/is_nothrow_swappable_with/requirements/explicit_instantiation.cc:
1863 * testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
1865 * testsuite/20_util/is_nothrow_swappable_with/value.cc:
1867 * testsuite/20_util/is_swappable/requirements/explicit_instantiation.cc:
1869 * testsuite/20_util/is_swappable/requirements/typedefs.cc:
1871 * testsuite/20_util/is_swappable/value.cc: Likewise.
1872 * testsuite/20_util/is_swappable_with/requirements/explicit_instantiation.cc:
1874 * testsuite/20_util/is_swappable_with/requirements/typedefs.cc:
1876 * testsuite/20_util/is_swappable_with/value.cc: Likewise.
1877 * testsuite/20_util/logical_traits/requirements/explicit_instantiation.cc:
1879 * testsuite/20_util/logical_traits/requirements/typedefs.cc:
1881 * testsuite/20_util/logical_traits/value.cc: Likewise.
1882 * testsuite/20_util/optional/constexpr/make_optional.cc: Likewise.
1883 * testsuite/20_util/optional/constexpr/observers/2.cc: Likewise.
1884 * testsuite/20_util/optional/constexpr/observers/3.cc: Likewise.
1885 * testsuite/20_util/optional/hash.cc: Likewise.
1886 * testsuite/20_util/pair/swap_cxx17.cc: Likewise.
1887 * testsuite/20_util/ratio/requirements/ratio_equal_v.cc: Likewise.
1888 * testsuite/20_util/shared_ptr/requirements/weak_type.cc:
1890 * testsuite/20_util/specialized_algorithms/memory_management_tools/1.cc:
1892 * testsuite/20_util/tuple/apply/1.cc: Likewise.
1893 * testsuite/20_util/tuple/make_from_tuple/1.cc: Likewise.
1894 * testsuite/20_util/tuple/swap_cxx17.cc: Likewise.
1895 * testsuite/20_util/tuple/tuple_size_v.cc: Likewise.
1896 * testsuite/20_util/unique_ptr/specialized_algorithms/swap_cxx17.cc:
1898 * testsuite/20_util/uses_allocator/requirements/uses_allocator_v.cc:
1900 * testsuite/20_util/variant/any.cc: Likewise.
1901 * testsuite/20_util/variant/compile.cc: Likewise.
1902 * testsuite/20_util/variant/hash.cc: Likewise.
1903 * testsuite/20_util/variant/index_type.cc: Likewise.
1904 * testsuite/20_util/variant/run.cc: Likewise.
1905 * testsuite/20_util/void_t/1.cc: Likewise.
1906 * testsuite/21_strings/basic_string/79162.cc: Likewise.
1907 * testsuite/21_strings/basic_string/cons/char/7.cc: Likewise.
1908 * testsuite/21_strings/basic_string/cons/wchar_t/7.cc: Likewise.
1909 * testsuite/21_strings/basic_string/lwg2758.cc: Likewise.
1910 * testsuite/21_strings/basic_string/lwg2946.cc: Likewise.
1911 * testsuite/21_strings/basic_string/modifiers/append/char/4.cc:
1913 * testsuite/21_strings/basic_string/modifiers/append/wchar_t/4.cc:
1915 * testsuite/21_strings/basic_string/modifiers/assign/char/4.cc:
1917 * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/4.cc:
1919 * testsuite/21_strings/basic_string/modifiers/insert/char/3.cc:
1921 * testsuite/21_strings/basic_string/modifiers/insert/wchar_t/3.cc:
1923 * testsuite/21_strings/basic_string/modifiers/replace/char/7.cc:
1925 * testsuite/21_strings/basic_string/modifiers/replace/wchar_t/7.cc:
1927 * testsuite/21_strings/basic_string/operations/compare/char/2.cc:
1929 * testsuite/21_strings/basic_string/operations/compare/wchar_t/2.cc:
1931 * testsuite/21_strings/basic_string/operations/data/char/2.cc:
1933 * testsuite/21_strings/basic_string/operations/data/wchar_t/2.cc:
1935 * testsuite/21_strings/basic_string/operations/find/char/5.cc:
1937 * testsuite/21_strings/basic_string/operations/find/wchar_t/5.cc:
1939 * testsuite/21_strings/basic_string/operators/char/5.cc: Likewise.
1940 * testsuite/21_strings/basic_string/operators/wchar_t/5.cc:
1942 * testsuite/21_strings/basic_string_view/capacity/1.cc: Likewise.
1943 * testsuite/21_strings/basic_string_view/cons/char/1.cc: Likewise.
1944 * testsuite/21_strings/basic_string_view/cons/char/2.cc: Likewise.
1945 * testsuite/21_strings/basic_string_view/cons/char/3.cc: Likewise.
1946 * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
1948 * testsuite/21_strings/basic_string_view/cons/wchar_t/2.cc:
1950 * testsuite/21_strings/basic_string_view/cons/wchar_t/3.cc:
1952 * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
1954 * testsuite/21_strings/basic_string_view/element_access/char/2.cc:
1956 * testsuite/21_strings/basic_string_view/element_access/char/empty.cc:
1958 * testsuite/21_strings/basic_string_view/element_access/char/front_back.cc:
1960 * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
1962 * testsuite/21_strings/basic_string_view/element_access/wchar_t/2.cc:
1964 * testsuite/21_strings/basic_string_view/element_access/wchar_t/empty.cc:
1966 * testsuite/21_strings/basic_string_view/element_access/wchar_t/front_back.cc:
1968 * testsuite/21_strings/basic_string_view/include.cc: Likewise.
1969 * testsuite/21_strings/basic_string_view/inserters/char/1.cc:
1971 * testsuite/21_strings/basic_string_view/inserters/char/2.cc:
1973 * testsuite/21_strings/basic_string_view/inserters/char/3.cc:
1975 * testsuite/21_strings/basic_string_view/inserters/pod/10081-out.cc:
1977 * testsuite/21_strings/basic_string_view/inserters/wchar_t/1.cc:
1979 * testsuite/21_strings/basic_string_view/inserters/wchar_t/2.cc:
1981 * testsuite/21_strings/basic_string_view/inserters/wchar_t/3.cc:
1983 * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc:
1985 * testsuite/21_strings/basic_string_view/literals/types.cc:
1987 * testsuite/21_strings/basic_string_view/literals/values-char8_t.cc:
1989 * testsuite/21_strings/basic_string_view/literals/values.cc:
1991 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char/1.cc:
1993 * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t/1.cc:
1995 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char/1.cc:
1997 * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t/1.cc:
1999 * testsuite/21_strings/basic_string_view/operations/compare/char/1.cc:
2001 * testsuite/21_strings/basic_string_view/operations/compare/char/13650.cc:
2003 * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/1.cc:
2005 * testsuite/21_strings/basic_string_view/operations/compare/wchar_t/13650.cc:
2007 * testsuite/21_strings/basic_string_view/operations/copy/char/1.cc:
2009 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/1.cc:
2011 * testsuite/21_strings/basic_string_view/operations/data/char/1.cc:
2013 * testsuite/21_strings/basic_string_view/operations/data/wchar_t/1.cc:
2015 * testsuite/21_strings/basic_string_view/operations/find/char/1.cc:
2017 * testsuite/21_strings/basic_string_view/operations/find/char/2.cc:
2019 * testsuite/21_strings/basic_string_view/operations/find/char/3.cc:
2021 * testsuite/21_strings/basic_string_view/operations/find/char/4.cc:
2023 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/1.cc:
2025 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/2.cc:
2027 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/3.cc:
2029 * testsuite/21_strings/basic_string_view/operations/find/wchar_t/4.cc:
2031 * testsuite/21_strings/basic_string_view/operations/rfind/char/1.cc:
2033 * testsuite/21_strings/basic_string_view/operations/rfind/char/2.cc:
2035 * testsuite/21_strings/basic_string_view/operations/rfind/char/3.cc:
2037 * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/1.cc:
2039 * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/2.cc:
2041 * testsuite/21_strings/basic_string_view/operations/rfind/wchar_t/3.cc:
2043 * testsuite/21_strings/basic_string_view/operations/string_conversion/1.cc:
2045 * testsuite/21_strings/basic_string_view/operations/substr/char/1.cc:
2047 * testsuite/21_strings/basic_string_view/operations/substr/wchar_t/1.cc:
2049 * testsuite/21_strings/basic_string_view/range_access/char/1.cc:
2051 * testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc:
2053 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/1.cc:
2055 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char/1.cc:
2057 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc:
2059 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc:
2061 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char8_t/1.cc:
2063 * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t/1.cc:
2065 * testsuite/21_strings/basic_string_view/requirements/typedefs.cc:
2067 * testsuite/21_strings/basic_string_view/typedefs.cc: Likewise.
2068 * testsuite/21_strings/basic_string_view/types/1.cc: Likewise.
2069 * testsuite/23_containers/array/specialized_algorithms/swap_cxx17.cc:
2071 * testsuite/23_containers/map/modifiers/extract.cc: Likewise.
2072 * testsuite/23_containers/map/modifiers/insert_or_assign/1.cc:
2074 * testsuite/23_containers/map/modifiers/merge.cc: Likewise.
2075 * testsuite/23_containers/map/modifiers/try_emplace/1.cc: Likewise.
2076 * testsuite/23_containers/multimap/modifiers/extract.cc: Likewise.
2077 * testsuite/23_containers/multimap/modifiers/merge.cc: Likewise.
2078 * testsuite/23_containers/multiset/modifiers/extract.cc: Likewise.
2079 * testsuite/23_containers/multiset/modifiers/merge.cc: Likewise.
2080 * testsuite/23_containers/set/modifiers/extract.cc: Likewise.
2081 * testsuite/23_containers/set/modifiers/merge.cc: Likewise.
2082 * testsuite/23_containers/unordered_map/modifiers/extract.cc:
2084 * testsuite/23_containers/unordered_map/modifiers/insert_or_assign.cc:
2086 * testsuite/23_containers/unordered_map/modifiers/merge.cc:
2088 * testsuite/23_containers/unordered_map/modifiers/try_emplace.cc:
2090 * testsuite/23_containers/unordered_multimap/modifiers/extract.cc:
2092 * testsuite/23_containers/unordered_multimap/modifiers/merge.cc:
2094 * testsuite/23_containers/unordered_multiset/modifiers/extract.cc:
2096 * testsuite/23_containers/unordered_multiset/modifiers/merge.cc:
2098 * testsuite/23_containers/unordered_set/modifiers/extract.cc:
2100 * testsuite/23_containers/unordered_set/modifiers/merge.cc:
2102 * testsuite/24_iterators/headers/iterator/range_access_c++17.cc:
2104 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc:
2106 * testsuite/25_algorithms/clamp/1.cc: Likewise.
2107 * testsuite/25_algorithms/clamp/2.cc: Likewise.
2108 * testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
2109 * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/1.cc:
2111 * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/pod.cc:
2113 * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
2115 * testsuite/26_numerics/headers/cmath/special_functions_global.cc:
2117 * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc:
2119 * testsuite/29_atomics/atomic/is_always_lock_free.cc: Likewise.
2120 * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc:
2122 * testsuite/30_threads/shared_lock/70766.cc: Likewise.
2123 * testsuite/30_threads/shared_mutex/cons/1.cc: Likewise.
2124 * testsuite/30_threads/shared_mutex/cons/assign_neg.cc:
2126 * testsuite/30_threads/shared_mutex/cons/copy_neg.cc:
2128 * testsuite/30_threads/shared_mutex/requirements/standard_layout.cc:
2130 * testsuite/30_threads/shared_mutex/try_lock/1.cc: Likewise.
2131 * testsuite/30_threads/shared_mutex/try_lock/2.cc: Likewise.
2132 * testsuite/30_threads/shared_mutex/unlock/1.cc: Likewise.
2134 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2137 * include/bits/stl_iterator.h (reverse_iterator): Friend
2138 declaration should not depend on __cplusplus.
2140 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2142 * testsuite/experimental/filesystem/filesystem_error/cons.cc:
2143 Remove -std=gnu++17 option.
2145 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2147 * testsuite/20_util/is_aggregate/value.cc: Adjust for changes to
2148 definition of aggregates in C++20.
2149 * testsuite/20_util/optional/requirements.cc: Adjust for
2150 defaulted comparisons in C++20.
2152 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2154 * testsuite/20_util/tuple/78939.cc: Suppress warnings about
2155 deprecation of volatile-qualified structured bindings in C++20.
2156 * testsuite/20_util/variable_templates_for_traits.cc: Likewise
2157 for deprecation of is_pod in C++20
2159 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2161 * testsuite/20_util/time_point_cast/rounding.cc: Remove
2162 duplicate dg-do directive and add c++17 effective target.
2164 2020-07-31 Jonathan Wakely <jwakely@redhat.com>
2166 * src/c++17/floating_from_chars.cc (from_chars_impl): Use
2167 LC_ALL_MASK not LC_ALL.
2169 2020-07-31 Richard Biener <rguenther@suse.de>
2172 * testsuite/20_util/assume_aligned/3.cc: Use -g0.
2174 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2176 * include/bits/basic_string.h (size_type, difference_type):
2177 Use allocator_traits to obtain the allocator's size_type and
2180 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2183 * src/c++17/floating_from_chars.cc (from_chars_impl): Use
2185 [!_GLIBCXX_USE_C99_STDLIB]: Use strtod for float and long
2188 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2190 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
2191 Use allocator with the correct value type.
2192 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
2195 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2197 * testsuite/20_util/from_chars/4.cc: Pass non-const iterator
2200 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2202 * include/bits/iterator_concepts.h (__detail::__cv_bool): New
2204 (__detail::__integral_nonbool): Likewise.
2205 (__detail::__is_integer_like): Use __integral_nonbool.
2206 * testsuite/std/ranges/access/lwg3467.cc: New test.
2208 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2210 * testsuite/20_util/from_chars/4.cc: Use dg-add-options ieee.
2211 * testsuite/29_atomics/atomic_float/1.cc: Likewise.
2213 2020-07-30 Jonathan Wakely <jwakely@redhat.com>
2215 * testsuite/23_containers/vector/bool/72847.cc: Use the
2216 exceptions_enabled effective-target keyword instead of
2217 checking for an explicit -fno-exceptions option.
2218 * testsuite/util/testsuite_abi.cc (examine_symbol): Remove
2219 redundant try-catch.
2220 * testsuite/util/testsuite_allocator.h [!__cpp_exceptions]:
2221 Do not define check_allocate_max_size and memory_resource.
2222 * testsuite/util/testsuite_containers.h: Replace comment with
2223 #error if wrong standard dialect used.
2224 * testsuite/util/testsuite_shared.cc: Likewise.
2226 2020-07-29 François Dumont <fdumont@gcc.gnu.org>
2228 * include/bits/hashtable_policy.h (_Node_iterator_base()): New.
2229 (operator==(const _Node_iterator_base&, const _Node_iterator_base&)):
2231 (operator!=(const _Node_iterator_base&, const _Node_iterator_base&)):
2233 (_Local_iterator_base<>): Inherits _Node_iterator_base.
2234 (_Local_iterator_base<>::_M_cur): Remove.
2235 (_Local_iterator_base<>::_M_curr()): Remove.
2236 (operator==(const _Local_iterator_base&, const _Local_iterator_base&)):
2238 (operator!=(const _Local_iterator_base&, const _Local_iterator_base&)):
2240 * include/debug/unordered_map (unordered_map<>::_M_invalidate): Adapt.
2241 (unordered_multimap<>::_M_invalidate): Adapt.
2242 * include/debug/unordered_set (unordered_set<>::_M_invalidate): Adapt.
2243 (unordered_multiset<>::_M_invalidate): Adapt.
2245 2020-07-29 David Edelsohn <dje.gcc@gmail.com>
2246 Jonathan Wakely <jwakely@redhat.com>
2247 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
2249 * testsuite/lib/dg-options.exp (add_options_for_libatomic): Add
2250 target powerpc-ibm-aix* and powerpc*-*-darwin*.
2251 * testsuite/29_atomics/atomic_float/value_init.cc: Add options
2254 2020-07-29 François Dumont <fdumont@gcc.gnu.org>
2256 * include/bits/hashtable.h
2257 (_Hashtable(_Hashtable&& __ht, __node_alloc_type&& __a, true_type)):
2258 Add noexcept qualification.
2259 (_Hashtable(_Hashtable&&)): Fix noexcept qualification.
2260 (_Hashtable(_Hashtable&&, const allocator_type&)): Add noexcept
2262 * include/bits/unordered_map.h
2263 (unordered_map(unordered_map&&, const allocator_type&)): Add noexcept
2265 (unordered_multimap(unordered_multimap&&, const allocator_type&)):
2267 * include/bits/unordered_set.h
2268 (unordered_set(unordered_set&&, const allocator_type&)): Likewise.
2269 (unordered_multiset(unordered_multiset&&, const allocator_type&)):
2271 * include/debug/unordered_map
2272 (unordered_map(unordered_map&&, const allocator_type&)): Likewise.
2273 (unordered_multimap(unordered_multimap&&, const allocator_type&)):
2275 * include/debug/unordered_set
2276 (unordered_set(unordered_set&&, const allocator_type&)): Likewise.
2277 (unordered_multiset(unordered_multiset&&, const allocator_type&)):
2279 * testsuite/23_containers/unordered_map/allocator/default_init.cc:
2281 * testsuite/23_containers/unordered_map/cons/noexcept_default_construct.cc:
2283 * testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc:
2285 * testsuite/23_containers/unordered_map/modifiers/move_assign.cc:
2287 * testsuite/23_containers/unordered_multimap/cons/noexcept_default_construct.cc:
2289 * testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc:
2291 * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc:
2293 * testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc:
2295 * testsuite/23_containers/unordered_set/allocator/default_init.cc:
2297 * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc:
2299 * testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc:
2302 2020-07-28 François Dumont <fdumont@gcc.gnu.org>
2304 * include/bits/hashtable.h
2305 (_Hashtable<>(_InputIterator, _InputIterator, size_t, const _H1&,
2306 const _H2&, const _Hash&, const _Equal&, const _ExtractKey&,
2307 const allocator_type&, true_type)): New.
2308 (_Hashtable<>(_InputIterator, _InputIterator, size_t, const _H1&,
2309 const _H2&, const _Hash&, const _Equal&, const _ExtractKey&,
2310 const allocator_type&, false_type)): New.
2311 (_Hashtable<>(_InputIterator, _InputIterator, size_t, const _H1&,
2312 const _H2&, const _Hash&, const _Equal&, const _ExtractKey&,
2313 const allocator_type&)): Delegate to latters.
2314 (operator=(initializer_list<value_type>)): Rehash if too small.
2315 (_M_insert(_Arg&&, const _NodeGenerator&, true_type)): Remove
2316 size_t len parameter.
2317 * include/bits/hashtable_policy.h (_Insert_base<>::_M_insert_range):
2318 Do not try to get input range distance.
2319 * testsuite/23_containers/unordered_set/cons/bucket_hint.cc: New test.
2320 * testsuite/23_containers/unordered_set/modifiers/insert.cc: New test.
2322 2020-07-27 François Dumont <fdumont@gcc.gnu.org>
2324 * include/bits/hashtable_policy.h (_Map_base<>::at): Use
2326 (_Hashtable_base<>::_Equal_hash_code<>::_S_node_equals):New.
2327 (_Hashtable_base<>::_M_node_equals): New, use latter.
2328 (_Equality<_Key, _Value, _Alloc, _ExtractKey, _Equal, _H1, _H2, _Hash,
2329 _RehashPolicy, false>::_M_equal): Adapt to use latter.
2330 * include/bits/hashtable.h (_Hashtable<>::_M_update_bbegin): New.
2331 (_Hashtable<>::_M_assign): Use latter.
2332 (_Hashtable<>::_M_move_assign): Likewise.
2333 (_Hashtable<>(_Hashtable<>&&)): Likewise.
2334 (_Hashtable<>(_Hashtable<>&&, const allocator_type&)): Likewise.
2335 (_Hashtable<>::swap): Likewise.
2336 (_Hashtable<>::find): Build iterator directly from _M_find_node result.
2337 (_Hashtable<>::count): Use _Hashtable<>::find.
2338 (_Hashtable<>::equal_range): Likewise.
2339 (_Hashtable<>::_M_erase(false_type, const key_type&)): Use
2342 2020-07-27 Jonathan Wakely <jwakely@redhat.com>
2344 * src/c++17/floating_from_chars.cc (from_chars_impl): Ensure
2345 that FE_NEAREST is used.
2346 * testsuite/20_util/from_chars/4.cc: Do not use if constexpr in
2347 a { target c++14 } test.
2348 [!_GLIBCXX_HAVE_USELOCALE]: Disable all tests.
2349 * testsuite/20_util/from_chars/5.cc [!_GLIBCXX_HAVE_USELOCALE]:
2351 * testsuite/20_util/from_chars/6.cc: New test.
2353 2020-07-22 Jonathan Wakely <jwakely@redhat.com>
2355 * include/std/future (future, shared_future, promise): Add
2356 static assertions to the primary template to reject array and
2358 * testsuite/30_threads/future/requirements/lwg3458.cc: New test.
2359 * testsuite/30_threads/promise/requirements/lwg3466.cc: New test.
2360 * testsuite/30_threads/shared_future/requirements/lwg3458.cc: New test.
2362 2020-07-22 Jonathan Wakely <jwakely@redhat.com>
2364 * include/bits/stl_iterator.h (reverse_iterator): Constrain
2365 converting constructor and converting assignment operator.
2366 Access source iterator's data member directly instead of
2368 (move_iterator): Likewise.
2369 * testsuite/24_iterators/move_iterator/dr3435.cc: New test.
2370 * testsuite/24_iterators/reverse_iterator/dr3435.cc: New test.
2372 2020-07-20 Jonathan Wakely <jwakely@redhat.com>
2374 * acinclude.m4 (libtool_VERSION): Bump version.
2375 * config.h.in: Regenerate.
2376 * config/abi/pre/gnu.ver: Add GLIBCXX_3.4.29 version and new
2378 * config/os/gnu-linux/ldbl-extra.ver: Add _GLIBCXX_LDBL_3.4.29
2379 version and new export.
2380 * configure: Regenerate.
2381 * configure.ac: Check for <xlocale.h> and uselocale.
2382 * crossconfig.m4: Add macro or checks for uselocale.
2383 * include/std/charconv (from_chars): Declare overloads for
2384 float, double, and long double.
2385 * src/c++17/Makefile.am: Add new file.
2386 * src/c++17/Makefile.in: Regenerate.
2387 * src/c++17/floating_from_chars.cc: New file.
2388 (from_chars): Define for float, double, and long double.
2389 * testsuite/20_util/from_chars/1_c++20_neg.cc: Prune extra
2390 diagnostics caused by new overloads.
2391 * testsuite/20_util/from_chars/1_neg.cc: Likewise.
2392 * testsuite/20_util/from_chars/2.cc: Check leading '+'.
2393 * testsuite/20_util/from_chars/4.cc: New test.
2394 * testsuite/20_util/from_chars/5.cc: New test.
2395 * testsuite/util/testsuite_abi.cc: Add new symbol versions.
2397 2020-07-20 Jonathan Wakely <jwakely@redhat.com>
2399 * include/bits/istream.tcc
2400 (basic_istream::get(__streambuf_type&, char_type): Use unsigned
2401 long long for counter and check if it would overflow _M_gcount.
2402 * testsuite/27_io/basic_istream/get/char/lwg3464.cc: New test.
2403 * testsuite/27_io/basic_istream/get/wchar_t/lwg3464.cc: New test.
2405 2020-07-17 Iain Sandoe <iain@sandoe.co.uk>
2407 * include/std/coroutine: Mark the methods of the
2408 trivial awaitables as constexpr.
2410 2020-07-14 David Edelsohn <dje.gcc@gmail.com>
2412 * config/os/aix/t-aix: Set BITS from compiler cpp macro.
2414 2020-07-13 Jonathan Wakely <jwakely@redhat.com>
2418 * include/bits/istream.tcc (basic_istream::ignore(streamsize))
2419 [n == max]: Check overflow conditions on _M_gcount. Rely on
2420 the fact that either EOF or the delimiter was reached.
2421 [n < max]: Check _M_gcount < n before checking for EOF or
2423 (basic_istream::ignore(streamsize, char_type): Likewise.
2424 * src/c++98/compatibility.cc (istream::ignore(streamsize))
2425 (wistream::ignore(streamsize)): Likewise.
2426 * src/c++98/istream.cc (istream::ignore(streamsize, char_type))
2427 (wistream::ignore(streamsize, char_type)): Likewise.
2428 * testsuite/27_io/basic_istream/ignore/char/94749.cc: Check that
2429 delimiter is discarded if the number of characters ignored
2430 doesn't fit in streamsize.
2431 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc:
2433 * testsuite/27_io/basic_istream/ignore/char/96161.cc: New test.
2434 * testsuite/27_io/basic_istream/ignore/wchar_t/96161.cc: New test.
2436 2020-07-08 François Dumont <fdumont@gcc.gnu.org>
2438 * include/bits/stl_tree.h (_Rb_tree_impl(_Rb_tree_impl&&)): Add noexcept
2439 qualification based only on _Compare one.
2440 * testsuite/23_containers/map/cons/noexcept_move_construct.cc: Add
2442 * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc:
2444 * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc:
2446 * testsuite/23_containers/set/cons/noexcept_move_construct.cc: Likewise.
2448 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
2450 * include/std/limits: Whitespace changes.
2452 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
2454 * include/Makefile.am: Remove bits/int_limits.h.
2455 * include/Makefile.in: Regenerate.
2456 * include/bits/int_limits.h: Removed.
2457 * include/bits/parse_numbers.h (_Select_int_base): Replace
2458 __int_limits with __int_traits.
2459 * include/bits/range_access.h (_SSize::operator()): Likewise.
2460 * include/ext/numeric_traits.h (__numeric_traits_integer): Add
2462 (__int_traits): New alias template.
2463 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
2464 (__countr_zero, __countr_one, __popcount, __bit_ceil)
2465 (__bit_floor, __bit_width) Replace __int_limits with
2467 * include/std/charconv (__to_chars_8, __from_chars_binary)
2468 (__from_chars_alpha_to_num, from_chars): Likewise.
2469 * include/std/memory_resource (polymorphic_allocator::allocate)
2470 (polymorphic_allocator::allocate_object): Likewise.
2471 * include/std/string_view (basic_string_view::_S_compare):
2473 * include/std/utility (cmp_equal, cmp_less, in_range): Likewise.
2475 2020-07-07 Jonathan Wakely <jwakely@redhat.com>
2477 * include/std/limits: Whitespace changes.
2479 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
2481 * include/std/optional (_Optional_payload_base, _Optional_base)
2482 (optional, __optional_hash_call_base): Adjust whitespace and
2483 other formatting. Remove redundant && tokens on template
2484 arguments to type traits.
2486 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
2488 * include/std/optional (make_optional): Add enable_if
2489 constraints and noexcept-specifier to each overload.
2490 * testsuite/20_util/optional/make_optional-2.cc: New test.
2492 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
2495 * include/std/optional (optional): Add noexcept-specifier to
2496 every constructor, assignment operator, emplace function and
2497 dereference operator.
2498 * testsuite/20_util/optional/assignment/noexcept.cc: New test.
2499 * testsuite/20_util/optional/cons/noexcept.cc: New test.
2501 2020-07-06 Jonathan Wakely <jwakely@redhat.com>
2504 * include/bits/fs_dir.h: Use consistent tag in class-head.
2505 * include/bits/localefwd.h: Likewise.
2506 * include/bits/regex.h: Likewise.
2507 * include/bits/stl_map.h: Likewise.
2508 * include/bits/stl_multimap.h: Likewise.
2509 * include/bits/stl_multiset.h: Likewise.
2510 * include/bits/stl_set.h: Likewise.
2511 * include/std/complex: Likewise.
2512 * include/std/functional: Likewise.
2513 * include/std/future: Likewise.
2514 * include/std/system_error: Likewise.
2515 * include/std/thread: Likewise.
2516 * include/std/tuple: Likewise.
2517 * include/std/type_traits: Likewise.
2518 * include/std/valarray: Likewise.
2520 2020-07-02 Jonathan Wakely <jwakely@redhat.com>
2522 * testsuite/27_io/basic_ios/conv/voidptr.cc: Add c++98_only
2525 2020-07-02 Jonathan Wakely <jwakely@redhat.com>
2527 * testsuite/18_support/headers/cstdalign/std_c++0x_neg.cc: Add
2528 c++98_only target selector.
2529 * testsuite/18_support/headers/cstdbool/std_c++0x_neg.cc:
2531 * testsuite/18_support/headers/cstdint/std_c++0x_neg.cc:
2533 * testsuite/18_support/headers/new/synopsis_cxx98.cc: Likewise.
2534 * testsuite/19_diagnostics/headers/system_error/std_c++0x_neg.cc:
2536 * testsuite/20_util/headers/type_traits/std_c++0x_neg.cc:
2538 * testsuite/23_containers/headers/array/std_c++0x_neg.cc:
2540 * testsuite/23_containers/headers/tuple/std_c++0x_neg.cc:
2542 * testsuite/23_containers/headers/unordered_map/std_c++0x_neg.cc:
2544 * testsuite/23_containers/headers/unordered_set/std_c++0x_neg.cc:
2546 * testsuite/26_numerics/headers/ccomplex/std_c++0x_neg.cc:
2548 * testsuite/26_numerics/headers/cfenv/std_c++0x_neg.cc:
2550 * testsuite/26_numerics/headers/cmath/c99_classification_macros_c++98.cc:
2552 * testsuite/26_numerics/headers/ctgmath/std_c++0x_neg.cc:
2554 * testsuite/26_numerics/headers/random/std_c++0x_neg.cc:
2556 * testsuite/27_io/headers/cinttypes/std_c++0x_neg.cc: Likewise.
2557 * testsuite/28_regex/headers/regex/std_c++0x_neg.cc: Likewise.
2558 * testsuite/29_atomics/headers/atomic/std_c++0x_neg.cc:
2560 * testsuite/30_threads/headers/condition_variable/std_c++0x_neg.cc:
2562 * testsuite/30_threads/headers/future/std_c++0x_neg.cc:
2564 * testsuite/30_threads/headers/mutex/std_c++0x_neg.cc: Likewise.
2565 * testsuite/30_threads/headers/thread/std_c++0x_neg.cc:
2568 2020-07-02 Ville Voutilainen <ville.voutilainen@gmail.com>
2571 * include/std/variant
2572 (_Copy_assign_base::operator=(const _Copy_assign_base&):
2573 Do the move-assignment from a temporary so that the temporary
2574 is constructed with an explicit index.
2575 * testsuite/20_util/variant/91807.cc: New.
2577 2020-07-02 Jonathan Wakely <jwakely.gcc@gmail.com>
2581 * testsuite/29_atomics/atomic_float/1.cc: Use different values
2583 * testsuite/29_atomics/atomic_ref/float.cc: Likewise.
2585 2020-07-01 Jonathan Wakely <jwakely@redhat.com>
2588 * include/bits/regex.h (operator==, operator!=): Remove noexcept
2589 equality comparisons for match_results.
2590 * testsuite/28_regex/match_results/94627.cc: New test.
2592 2020-07-01 Martin Sebor <msebor@redhat.com>
2594 * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: Adjust
2595 text of expected warning.
2596 * testsuite/21_strings/basic_string_view/cons/wchar_t/nonnull.cc: Same.
2597 * testsuite/21_strings/basic_string_view/operations/compare/char/nonnull.cc: Same.
2598 * testsuite/21_strings/basic_string_view/operations/find/char/nonnull.cc: Same.
2599 * testsuite/21_strings/basic_string_view/operations/rfind/char/nonnull.cc: Same.
2601 2020-06-29 Ville Voutilainen <ville.voutilainen@gmail.com>
2604 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
2606 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
2607 Add a __nonnull__ attribute.
2608 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
2609 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
2611 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
2613 * include/bits/basic_string.h (string(_CharT*, const _Alloc&)):
2614 Add a __nonnull__ attribute.
2615 * testsuite/21_strings/basic_string/cons/char/nonnull.cc: New.
2616 * testsuite/21_strings/basic_string/cons/wchar_t/nonnull.cc: Likewise.
2618 2020-06-28 Ville Voutilainen <ville.voutilainen@gmail.com>
2621 * include/std/type_traits (is_literal_type, is_literal_type_v):
2623 * include/std/variant (_Uninitialized):
2624 Adjust the condition and the comment.
2625 * testsuite/20_util/is_literal_type/deprecated-1z.cc: New.
2626 * testsuite/20_util/is_literal_type/requirements/explicit_instantiation.cc:
2628 * testsuite/20_util/is_literal_type/requirements/typedefs.cc: Likewise.
2629 * testsuite/20_util/is_literal_type/value.cc: Likewise.
2630 * testsuite/20_util/optional/constexpr/nullopt.cc:
2631 Use __is_literal_type directly.
2632 * testsuite/20_util/optional/nullopt.cc: Likewise.
2633 * testsuite/20_util/variable_templates_for_traits.cc: Adjust.
2634 * testsuite/20_util/variant/95915.cc: New.
2635 * testsuite/20_util/variant/compile.cc: Add new test.
2636 * testsuite/experimental/optional/constexpr/nullopt.cc:
2637 Use __is_literal_type directly.
2638 * testsuite/experimental/optional/nullopt.cc: Likewise.
2639 * testsuite/experimental/type_traits/value.cc: Adjust.
2640 * testsuite/util/testsuite_common_types.h:
2641 Use __is_literal_type directly.
2643 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2645 * include/std/charconv (__from_chars_binary): Ignore leading zeros.
2646 * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases,
2648 * testsuite/20_util/from_chars/3.cc: New test.
2650 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2652 * include/bits/stl_algobase.h (__find_if): Add FALLTHRU markers.
2653 * include/std/charconv (__detail::__to_chars): Avoid
2654 -Wsign-compare warning.
2656 2020-06-24 Jonathan Wakely <jwakely@redhat.com>
2659 * include/std/charconv (__to_chars_i): Check for zero-sized
2660 buffer unconditionally.
2661 * testsuite/20_util/to_chars/95851.cc: New test.
2663 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
2665 * testsuite/20_util/from_chars/1_c++20_neg.cc: Check enumeration
2667 * testsuite/20_util/from_chars/1_neg.cc: Likewise. Move dg-error
2668 directives outside preprocessor condition.
2670 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
2673 * include/std/variant (__detail::__variant::_Build_FUN): Remove
2674 partial specialization to prevent narrowing conversions to bool.
2675 * testsuite/20_util/variant/compile.cc: Test non-narrowing
2676 conversions to bool.
2677 * testsuite/20_util/variant/run.cc: Likewise.
2679 2020-06-23 Jonathan Wakely <jwakely@redhat.com>
2681 * doc/Makefile.in: Regenerate.
2682 * include/Makefile.in: Regenerate.
2683 * libsupc++/Makefile.in: Regenerate.
2684 * po/Makefile.in: Regenerate.
2685 * python/Makefile.in: Regenerate.
2686 * src/Makefile.in: Regenerate.
2687 * src/c++11/Makefile.in: Regenerate.
2688 * src/c++17/Makefile.in: Regenerate.
2689 * src/c++98/Makefile.in: Regenerate.
2690 * src/filesystem/Makefile.in: Regenerate.
2691 * testsuite/Makefile.in: Regenerate.
2693 2020-06-22 David Edelsohn <dje.gcc@gmail.com>
2695 * Makefile.am: Use -include.
2696 * Makefile.in: Regenerate.
2698 2020-06-21 David Edelsohn <dje.gcc@gmail.com>
2700 * Makefile.am (tmake_file): Build and install AIX-style FAT libraries.
2701 * Makefile.in: Regenerate.
2702 * configure.ac (tmake_file): Substitute.
2703 * configure: Regenerate.
2704 * configure.host (aix*): Define tmake_file.
2705 * config/os/aix/t-aix: New file.
2707 2020-06-20 Jason Merrill <jason@redhat.com>
2709 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc:
2710 Remove greedy_ops tests.
2711 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc:
2712 Remove greedy_ops tests.
2714 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
2717 * include/bits/stl_algobase.h (__size_to_integer(float))
2718 (__size_to_integer(double), __size_to_integer(long double))
2719 (__size_to_integer(__float128)): Cast return type explicitly.
2720 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
2721 Remove unused typedef.
2723 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
2725 * include/bits/stl_pair.h (_Index_tuple): Remove redundant
2726 namespace qualification.
2727 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
2729 * include/std/tuple (_Head_base, _Tuple_impl, tuple_size)
2730 (tuple_element, __get_helper, get, __make_tuple_impl)
2731 (__make_1st_indices, __tuple_concater)
2732 (pair::pair(tuple<>&, tuple<>&, _Index_tuple, _Index_tuple)):
2734 * include/std/utility (tuple_element, __is_tuple_like_impl)
2735 (tuple_size, __pair_get, get): Likewise.
2737 2020-06-19 Jonathan Wakely <jwakely@redhat.com>
2739 * include/bits/std_function.h (function): Define all member
2742 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
2744 * include/bits/stl_algo.h (__includes): Simplify the code.
2746 2020-06-19 Marc Glisse <marc.glisse@inria.fr>
2748 * include/std/optional (optional()): Explicitly define it.
2750 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
2753 * include/bits/stl_uninitialized.h (__uninitialized_default_1<true>):
2754 Construct the first value at *__first instead of on the stack.
2755 (__uninitialized_default_n_1<true>): Likewise.
2756 Improve comments on several of the non-standard algorithms.
2757 * testsuite/20_util/specialized_algorithms/uninitialized_default/94540.cc:
2759 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/94540.cc:
2761 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct/94540.cc:
2763 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/94540.cc:
2765 * testsuite/23_containers/vector/cons/94540.cc: New test.
2767 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
2769 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
2770 Replace Value type with int so trivial code path is used.
2771 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
2774 2020-06-17 Jonathan Wakely <jwakely@redhat.com>
2776 * include/bits/stl_uninitialized.h (uninitialized_fill_n): Only
2777 use std::fill_n when the size is an integral type.
2778 (__uninitialized_default_n): Likewise.
2779 * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc:
2781 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc:
2783 * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc:
2786 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
2789 * include/bits/atomic_base.h (__atomic_impl::load): Use the _Val
2790 alias instead of deducing _Tp as an unqualified type.
2791 (__atomic_impl::exchange): Use the _Val alias to remove volatile
2792 from the reinterpret_cast result type.
2794 2020-06-16 Jonathan Wakely <jwakely@redhat.com>
2796 * include/std/atomic (atomic): Add static assertions.
2797 * testsuite/29_atomics/atomic/requirements/types_neg.cc: New test.
2799 2020-06-16 Patrick Palka <ppalka@redhat.com>
2802 * testsuite/20_util/is_constructible/94003.cc: New test.
2804 2020-06-15 Jonathan Wakely <jwakely@redhat.com>
2806 * include/bits/char_traits.h (__cpp_lib_constexpr_char_traits):
2807 Update value for C++20.
2808 * include/std/version (__cpp_lib_constexpr_char_traits): Likewise.
2809 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
2810 Update expected value.
2811 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
2814 2020-06-15 Paul Keir <paul.keir@uws.ac.uk>
2816 * include/bits/char_traits.h (char_traits::move): constexpr move with
2817 overlap was using copy_backward incorrectly.
2818 * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
2821 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
2823 * testsuite/29_atomics/atomic_flag/clear/1.cc: Also test clear()
2824 when the value is currently set.
2825 * testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc:
2826 Actually check the return value.
2827 * testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc:
2830 2020-06-12 Jonathan Wakely <jwakely@redhat.com>
2832 * include/bits/atomic_base.h (atomic_flag::test): Add missing
2834 * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
2835 dg-options and verify results of test function.
2836 * testsuite/29_atomics/atomic_flag/test/implicit.cc: Likewise.
2838 2020-06-11 Jonathan Wakely <jwakely@redhat.com>
2841 * include/bits/istream.tcc (basic_istream::ignore(streamsize, CharT)):
2842 Only discard an extra character if we didn't already reach the
2844 * src/c++98/istream.cc (istream::ignore(streamsiz, char))
2845 (wistream::ignore(streamsize, wchar_t)): Likewise.
2846 * testsuite/27_io/basic_istream/ignore/char/94749.cc: New test.
2847 * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc: New test.
2849 2020-06-10 Patrick Palka <ppalka@redhat.com>
2852 * include/bits/ranges_algo.h (__lexicographical_compare_fn):
2853 Also check that the iterator and sentinel have the same type before
2854 applying the unwrapping optimization for __normal_iterator.
2855 Split the check into two, one for the first iterator/sentinel
2856 pair and another for second iterator/sentinel pair. Remove uses
2857 of __niter_base, and remove uses of std::move on a
2859 * include/bits/ranges_algobase.h (__equal_fn): Likewise.
2860 (__copy_or_move): Likewise. Perform similar adjustments for
2861 the reverse_iterator and move_iterator optimizations. Inline
2862 the checks into the if-constexprs, and use using-declarations to
2863 make them less visually noisy. Remove uses of __niter_wrap.
2864 (__copy_or_move_backward): Likewise.
2865 * testsuite/25_algorithms/copy/95578.cc: New test.
2866 * testsuite/25_algorithms/copy_backward/95578.cc: New test.
2867 * testsuite/25_algorithms/equal/95578.cc: New test.
2868 * testsuite/25_algorithms/lexicographical_compare/95578.cc: New test.
2869 * testsuite/25_algorithms/move/95578.cc: New test.
2870 * testsuite/25_algorithms/move_backward/95578.cc: New test.
2872 2020-06-10 François Dumont <fdumont@gcc.gnu.org>
2873 Jonathan Wakely <jwakely@redhat.com>
2875 * include/bits/deque.tcc (__lex_cmp_dit): New.
2876 (__lexicographical_compare_aux1): Define overloads for deque
2878 * include/bits/stl_algobase.h (__lexicographical_compare::__3way):
2879 New static member function.
2880 (__lexicographical_compare<true>::__3way): Likewise.
2881 (__lexicographical_compare<true>::__lc): Use __3way.
2882 (__lexicographical_compare_aux): Rename to
2883 __lexicographical_compare_aux1 and declare overloads for deque
2885 (__lexicographical_compare_aux): Define new forwarding function
2886 that calls __lexicographical_compare_aux1 and declare new overloads
2888 (lexicographical_compare): Do not use __niter_base on
2890 * include/debug/safe_iterator.tcc
2891 (__lexicographical_compare_aux): Define overloads for safe
2893 * testsuite/25_algorithms/lexicographical_compare/1.cc: Add
2894 checks with random access iterators.
2895 * testsuite/25_algorithms/lexicographical_compare/deque_iterators/1.cc:
2898 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
2900 * include/bits/stl_iterator.h (move_iterator::operator=): Define.
2901 * testsuite/24_iterators/move_iterator/dr3265.cc: New test.
2903 2020-06-09 Jonathan Wakely <jwakely@redhat.com>
2905 * include/std/optional (bad_optional_access): Define default
2906 constructor and destructor as defaulted.
2907 * testsuite/20_util/optional/bad_access.cc: New test.
2909 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
2911 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error
2913 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
2915 2020-06-08 Jonathan Wakely <jwakely@redhat.com>
2917 * include/bits/unique_ptr.h (operator<<): Define for C++20.
2918 * testsuite/20_util/unique_ptr/io/lwg2948.cc: New test.
2920 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
2922 * include/bits/iterator_concepts.h (__detail::__ptr, __detail::__ref)
2923 (__detail::__cat, __detail::__diff): Move to class scope in the
2924 relevant __iterator_traits specializations.
2925 (__iterator_traits<>): Use nested class templates instead of ones from
2927 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Move to
2928 class scope in iterator_traits<common_iterator<I, S>>.
2929 (iterator_traits<common_iterator<I, S>>): Use nested class template
2930 instead of __detail::__common_iter_ptr.
2932 2020-06-04 François Dumont <fdumont@gcc.gnu.org>
2934 * include/bits/stl_algo.h (__copy_n_a): Move to ...
2935 * include/bits/stl_algobase.h (__copy_n_a): ...here. Add __strict
2937 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
2939 (__niter_base(const _Safe_iterator<_Ite, _Seq,
2940 random_access_iterator_tag>&)): Declare.
2941 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
2942 _Deque_iterator<>)): Declare.
2943 * include/bits/deque.tcc
2944 (__copy_move_a2(istreambuf_iterator<>, istreambuf_iterator<>,
2945 _Deque_iterator<>)): New.
2946 (__copy_n_a(istreambuf_iterator<>, _Size, _Deque_iterator<>, bool)):
2948 * include/bits/streambuf_iterator.h
2949 (__copy_n_a(istreambuf_iterator<>, _Size, _CharT*, bool)): Adapt.
2950 * include/debug/safe_iterator.tcc (__niter_base): New.
2951 * testsuite/25_algorithms/copy/streambuf_iterators/char/4.cc
2953 * testsuite/25_algorithms/copy/streambuf_iterators/char/debug/deque_neg.cc:
2955 * testsuite/25_algorithms/copy_n/debug/istreambuf_ite_deque_neg.cc:
2957 * testsuite/25_algorithms/copy_n/istreambuf_iterator/2.cc: New test.
2958 * testsuite/25_algorithms/copy_n/istreambuf_iterator/deque.cc:
2961 2020-06-04 Jonathan Wakely <jwakely@redhat.com>
2963 * include/bits/ranges_algobase.h (__copy_n_fn): Only call
2964 ranges::copy for positive values.
2965 * include/bits/stl_algo.h (copy_n): Convert Size argument to an
2966 integral type and only call __copy_n for positive values.
2967 * testsuite/util/testsuite_iterators.h
2968 (random_access_iterator_wrapper::operator+=): Fix range check for
2970 (output_container, input_container, forward_container)
2971 (bidirectional_container, random_access_container): New alias
2973 * testsuite/25_algorithms/copy_n/5.cc: New test.
2975 2020-06-02 Jonathan Wakely <jwakely@redhat.com>
2978 * include/debug/deque (deque(const _Base&)): Replace parameter
2979 with a struct that wraps a const _Base&.
2980 * include/debug/forward_list (forward_list(_Base_ref)): New
2982 * include/debug/list (list(const _Base&)): Replace parameter
2983 with a struct that wraps a const _Base&.
2984 * include/debug/map.h (map(const _Base&)): Likewise.
2985 * include/debug/multimap.h (multimap(const _Base&)): Likewise.
2986 * include/debug/multiset.h (multiset(const _Base&)): Likewise.
2987 * include/debug/set.h (set(const _Base&)): Likewise.
2988 * include/debug/unordered_map (unordered_map(const _Base&))
2989 (unordered_multimap(const _Base&)): Likewise.
2990 * include/debug/unordered_set (unordered_set(const _Base&))
2991 (unordered_multiset(const _Base&)): Likewise.
2992 * testsuite/23_containers/vector/cons/destructible_debug_neg.cc:
2993 Adjust dg-error line number.
2994 * include/debug/vector (vector(const _Base&)): Likewise.
2995 * testsuite/23_containers/deque/debug/90102.cc: New test.
2996 * testsuite/23_containers/forward_list/debug/90102.cc: New test.
2997 * testsuite/23_containers/list/debug/90102.cc: New test.
2998 * testsuite/23_containers/map/debug/90102.cc: New test.
2999 * testsuite/23_containers/multimap/debug/90102.cc: New test.
3000 * testsuite/23_containers/multiset/debug/90102.cc: New test.
3001 * testsuite/23_containers/set/debug/90102.cc: New test.
3002 * testsuite/23_containers/unordered_map/debug/90102.cc: New test.
3003 * testsuite/23_containers/unordered_multimap/debug/90102.cc: New test.
3004 * testsuite/23_containers/unordered_multiset/debug/90102.cc: New test.
3005 * testsuite/23_containers/unordered_set/debug/90102.cc: New test.
3006 * testsuite/23_containers/vector/debug/90102.cc: New test.
3008 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
3011 * include/bits/fs_path.h (path::_S_to_string): Move to
3012 namespace-scope and rename to ...
3013 (__detail::__string_from_range): ... this.
3014 [WINDOWS] (__detail::__wstr_from_utf8): New function template to
3015 convert a char sequence containing UTF-8 to wstring.
3016 (path::_S_convert(Iter, Iter)): Adjust call to _S_to_string.
3017 (path::_S_convert_loc(Iter, Iter, const locale&)): Likewise.
3018 (u8path(InputIterator, InputIterator)) [WINDOWS]: Use
3019 __string_from_range to obtain a contiguous range and
3020 __wstr_from_utf8 to obtain a wide string.
3021 (u8path(const Source&)) [WINDOWS]: Use __effective_range to
3022 obtain a contiguous range and __wstr_from_utf8 to obtain a wide
3024 (path::_S_convert(const _EcharT*, const _EcharT)) [WINDOWS]:
3025 Use __wstr_from_utf8.
3027 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
3029 * testsuite/util/testsuite_iterators.h:
3030 (input_iterator_wrapper::operator++(int)): Return proxy object.
3032 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
3034 * doc/xml/manual/evolution.xml: Document deprecation of
3035 __is_nullptr_t and removal of std::allocator members.
3036 * doc/html/manual/api.html: Regenerate.
3038 2020-06-01 Jonathan Wakely <jwakely@redhat.com>
3040 * doc/xml/manual/containers.xml: Replace <xref> with <link>.
3041 * doc/xml/manual/evolution.xml: Likewise.
3042 * doc/html/manual/api.html: Regenerate.
3043 * doc/html/manual/containers.html: Regenerate.
3045 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
3047 * doc/xml/faq.xml: Adjust Valgrind reference and remove another.
3048 * doc/html/faq.html: Regenerate.
3050 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
3052 * doc/xml/manual/policy_data_structures_biblio.xml: Remove
3055 2020-06-01 Gerald Pfeifer <gerald@pfeifer.com>
3057 * doc/xml/manual/policy_data_structures_biblio.xml: Switch
3058 www.cs.princeton.edu to https.
3059 * doc/html/manual/policy_data_structures.html: Regenerate.
3061 2020-05-31 Douglas B Rupp <douglas.b.rupp@gmail.com>
3063 * crossconfig.m4 (<*-vxworks>): Check for more math decls.
3064 * configure: Rebuild.
3066 2020-05-29 H.J. Lu <hjl.tools@gmail.com>
3069 * configure: Regenerated.
3071 2020-05-29 François Dumont <fdumont@gcc.gnu.org>
3074 * include/bits/hashtable_policy.h (_Insert_base<>::try_emplace): New.
3075 * include/bits/unordered_map.h (unordered_map<>::try_emplace): Adapt.
3076 (unordered_map<>::insert_or_assign): Adapt.
3078 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
3081 * include/bits/atomic_base.h (__atomic_impl::load): Add
3082 cv-qualifiers to parameter so that _Tp is deduced as the
3084 * testsuite/29_atomics/atomic_float/95282.cc: New test.
3086 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
3089 * include/std/ranges (transform_view::_Sentinel): Allow hidden
3090 friends to work with _Iterator<true> and _Iterator<false>.
3091 (join_view::_Sentinel): Likewise.
3092 * testsuite/std/ranges/adaptors/95322.cc: New test.
3094 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
3097 * include/bits/stl_iterator.h (reverse_iterator): Fix comparison
3098 operators to use the correct operations on the underlying
3100 * testsuite/24_iterators/reverse_iterator/rel_ops.cc: New test.
3102 2020-05-27 Jonathan Wakely <jwakely@redhat.com>
3104 * testsuite/18_support/comparisons/categories/zero_neg.cc: New test.
3106 2020-05-26 Patrick Palka <ppalka@redhat.com>
3109 * include/bits/stl_iterator.h (__detail::_Common_iter_proxy):
3110 Remove and instead define it ...
3111 (common_iterator::_Proxy): ... here.
3112 (common_iterator::operator->): Use it.
3113 * testsuite/24_iterators/common_iterator/2.cc: New test.
3114 * testsuite/std/ranges/adaptors/95322.cc: New test.
3116 2020-05-23 Patrick Palka <ppalka@redhat.com>
3119 * testsuite/std/ranges/adaptors/93978.cc: Add -Wall to
3120 dg-additional-options. Avoid unused-but-set-variable warning.
3122 2020-05-23 Jonathan Wakely <jwakely@redhat.com>
3125 * include/debug/helper_functions.h (__get_distance): Only declare
3126 as a constexpr function for C++14 and up.
3127 * testsuite/25_algorithms/copy/debug/95289.cc: New test.
3129 * include/bits/fs_path.h (__detail::_S_range_begin)
3130 (__detail::_S_range_end, path::_S_string_from_iter): Replace with
3131 overloaded function template __detail::__effective_range.
3132 (__detail::__effective_range): New overloaded function template to
3133 create a basic_string or basic_string_view for an effective range.
3134 (__detail::__value_type_is_char): Use __detail::__effective_range.
3135 Do not use remove_const on value type.
3136 (__detail::__value_type_is_char_or_char8_t): Likewise.
3137 (path::path(const Source&, format))
3138 (path::path(const Source&, const locale&))
3139 (path::operator/=(const Source&), path::append(const Source&))
3140 (path::concat(const Source&)): Use __detail::__effective_range.
3141 (path::_S_to_string(InputIterator, InputIterator)): New function
3142 template to create a string view if possible, or string otherwise.
3143 (path::_S_convert): Add overloads that convert a string returned
3144 by __detail::__effective_range. Use if-constexpr to inline conversion
3145 logic from all overloads of _Cvt::_S_convert.
3146 (path::_S_convert_loc): Add overload that converts a string. Use
3147 _S_to_string to avoid allocation when possible.
3148 (path::_Cvt): Remove.
3149 (path::operator+=(CharT)): Remove indirection through path::concat.
3150 * include/experimental/bits/fs_path.h (path::_S_convert_loc): Add
3151 overload for non-const pointers, to avoid constructing a std::string.
3152 * src/c++17/fs_path.cc (path::_S_convert_loc): Replace conditional
3153 compilation with call to _S_convert.
3155 * include/bits/fs_path.h (__detail::_S_range_begin)
3156 (__detail::_S_range_end): Remove unintentional static specifiers.
3157 * include/experimental/bits/fs_path.h (__detail::_S_range_begin)
3158 (__detail::_S_range_end): Likewise.
3160 * include/bits/fs_path.h (filesystem::__detail::__is_encoded_char):
3161 Replace alias template with variable template. Don't remove const.
3162 (filesystem::__detail::__is_path_src): Replace overloaded function
3163 template with variable template and specializations.
3164 (filesystem::__detail::__is_path_iter_src): Replace alias template
3165 with class template.
3166 (filesystem::__detail::_Path): Use __is_path_src. Remove support for
3168 (filesystem::__detail::_Path2): New alias template for checking
3169 InputIterator requirements.
3170 (filesystem::__detail::__constructible_from): Remove.
3171 (filesystem::path): Replace _Path<Iter, Iter> with _Path2<Iter>.
3172 * testsuite/27_io/filesystem/path/construct/80762.cc: Check with two
3173 constructor arguments of void and void* types.
3175 2020-05-21 Matthias Kretz <kretz@kde.org>
3177 * testsuite/Makefile.am: Remove dup target_triplet and set tool,
3178 allowing runtest to work without arguments.
3179 * testsuite/Makefile.in: Regenerate.
3181 2020-05-21 Jonathan Wakely <jwakely@redhat.com>
3184 * include/bits/iterator_concepts.h (__detail::__cpp17_iterator):
3185 Reorder constraints to avoid recursion when constructors use
3186 iterator_traits (LWG 3420).
3187 * testsuite/24_iterators/customization_points/lwg3420.cc: New test.
3189 * include/experimental/socket (basic_socket::is_open()
3190 (basic_socket_acceptor::is_open()): Use _GLIBCXX_NODISCARD macro.
3192 * include/experimental/bits/net.h (__endpoint, __protocol)
3193 (__acceptable_protocol, __inet_protocol): New concepts.
3194 (__detail::__is_endpoint): Move trait from <experimental/socket>.
3195 (__is_protocol, __is_acceptable_protocol, __is_inet_protocol): New
3197 (__endpoint, __protocol, __acceptable_protocol): New variable
3199 * include/experimental/socket (__is_endpoint): Move to net.h header.
3200 (basic_socket, basic_socket_acceptor): Check requirements.
3202 * include/experimental/executor (use_future_t::use_future_t()): Fix
3203 incorrect noexcept-specifier.
3204 * include/experimental/internet (basic_resolver_results): Adjust
3206 * include/experimental/socket (__basic_socket_impl::release): Add
3208 (basic_socket(io_context&, const endpoint_type&)): Fix argument to
3210 (basic_socket::release(), basic_socket::release(error_code&)): Add
3211 missing member functions.
3212 (basic_socket::is_open()): Add nodiscard attribute.
3213 (basic_socket::close(error_code&)): Pass argument to base function.
3214 (basic_socket_acceptor::release())
3215 (basic_socket_acceptor::release(error_code&)): Add missing member
3217 (basic_socket_acceptor::is_open()): Add nodiscard attribute.
3218 (basic_socket_streambuf::error()): Add noexcept.
3219 (basic_socket_iostream::error()): Likewise.
3220 * testsuite/experimental/net/socket/basic_socket.cc: New test.
3222 * include/experimental/buffer: Replace typedefs with
3224 * include/experimental/executor: Likewise.
3225 * include/experimental/internet: Likewise.
3226 * include/experimental/socket: Likewise.
3227 * include/experimental/timer: Likewise.
3229 2020-05-19 Jonathan Wakely <jwakely@redhat.com>
3232 * src/c++11/random.cc (__x86_rdseed): Allow fallback function to be
3234 (__x86_rdseed_rdrand): New function that uses rdseed with rdrand
3236 (random_device::_M_init): Use __x86_rdseed_rdrand when both
3237 instructions are available.
3238 * testsuite/26_numerics/random/random_device/94087.cc: New test.
3240 2020-05-19 Patrick Palka <ppalka@redhat.com>
3243 * testsuite/20_util/pair/astuple/get_neg.cc: Prune "type/value
3245 * testsuite/20_util/tuple/element_access/get_neg.cc: Likewise.
3247 2020-05-15 H.J. Lu <hongjiu.lu@intel.com>
3250 * configure: Regenerated.
3252 2020-05-14 H.J. Lu <hongjiu.lu@intel.com>
3254 * configure: Regenerated.
3256 2020-05-13 Alexandre Oliva <oliva@adacore.com>
3259 * include/experimental/memory_resource
3260 (__resource_adaptor_imp::do_allocate): Handle max_align_t on
3261 x86-vxworks as on x86-solaris.
3262 (__resource_adaptor_imp::do_deallocate): Likewise.
3263 * testsuite/experimental/memory_resource/new_delete_resource.cc:
3265 (BAD_MAX_ALIGN_T): Define on x86-vxworks as on x86-solaris.
3266 (test03): Drop max-align test for char-aligned alloc.
3268 2020-05-08 Ulrich Drepper <drepper@redhat.com>
3270 * include/bits/atomic_base.h (atomic_flag): Implement test member
3272 * include/std/version: Define __cpp_lib_atomic_flag_test.
3273 * testsuite/29_atomics/atomic_flag/test/explicit.cc: New file.
3274 * testsuite/29_atomics/atomic_flag/test/implicit.cc: New file.
3276 2020-05-07 Jonathan Wakely <jwakely@redhat.com>
3278 PR libstdc++/94971 (partial)
3279 * include/bits/ranges_algo.h (ranges::__sample_fn): Qualify
3280 std::sample using macro to work in parallel mode.
3281 (__sort_fn): Likewise for std::sort.
3282 (ranges::__nth_element_fn): Likewise for std::nth_element.
3283 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
3284 Likewise for std::__min_cmp.
3285 * include/parallel/algobase.h (lexicographical_compare_three_way):
3286 Add to namespace std::__parallel.
3289 * include/parallel/multiway_merge.h (_GuardedIterator::operator*)
3290 (_GuardedIterator::operator _RAIter, _UnguardedIterator::operator*)
3291 (_UnguardedIterator::operator _RAIter): Add const qualifier.
3292 (operator<(_GuardedIterator&, _GuardedIterator&)
3293 (operator<=(_GuardedIterator&, _GuardedIterator&)
3294 (operator<(_UnguardedIterator&, _UnguardedIterator&)
3295 (operator<=(_UnguardedIterator&, _UnguardedIterator&): Change
3296 parameters to const references.
3298 2020-05-07 Eric Botcazou <ebotcazou@adacore.com>
3300 * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update.
3301 * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise.
3303 2020-05-06 François Dumont <fdumont@gcc.gnu.org>
3305 * include/bits/stl_algobase.h (struct _Bit_iterator): New declaration.
3306 (std::__fill_a1(_Bit_iterator, _Bit_iterator, const bool&)): Likewise.
3307 * include/bits/stl_bvector.h (__fill_bvector): Move outside
3308 _GLIBCXX_STD_C namespace.
3309 (fill(_Bit_iterator, _Bit_iterator, const bool&)): Likewise and rename
3311 (__fill_a1): ...this.
3312 * testsuite/25_algorithms/fill/bvector/1.cc: New.
3314 2020-05-06 H.J. Lu <hongjiu.lu@intel.com>
3316 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
3318 2020-05-06 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
3320 * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
3321 * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
3323 * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
3324 * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
3327 2020-05-06 Martin Liska <mliska@suse.cz>
3330 2020-05-05 Martin Liska <mliska@suse.cz>
3332 * include/parallel/multiway_merge.h:
3333 Use const for _Compare template argument.
3335 2020-05-06 Jonathan Wakely <jwakely@redhat.com>
3337 * doc/xml/manual/abi.xml (abi.versioning.history): Document library
3338 versions for GCC 9.[123] and 10.1 releases.
3339 * doc/html/*: Regenerate.
3341 2020-05-06 Jakub Jelinek <jakub@redhat.com>
3343 * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
3344 * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
3345 * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update.
3346 * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
3347 * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
3348 * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
3349 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
3351 2020-05-05 Martin Liska <mliska@suse.cz>
3354 * include/parallel/multiway_merge.h:
3355 Use const for _Compare template argument.
3357 2020-05-04 Fangrui Song <maskray@google.com>
3359 * libsupc++/cxxabi.h (__cxa_finalize): Fix return type.
3361 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
3363 * doc/xml/faq.xml: Use working link for SGI STL FAQ.
3364 * doc/html/*: Regenerate.
3367 * src/c++17/memory_resource.cc
3368 (monotonic_buffer_resource::_Chunk::release): Use size_t for shift
3371 2020-05-04 Nathan Sidwell <nathan@acm.org>
3374 * libsupc++/dyncast.cc (__dynamic_cast): Cast offsetof to
3375 ptrdiff_t before negation, to show intent more clearly.
3377 2020-05-04 Jonathan Wakely <jwakely@redhat.com>
3380 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools):
3381 Add comment about single-threaded behaviour.
3382 (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist
3383 class member access out of loop.
3384 (synchronized_pool_resource::synchronized_pool_resource())
3385 (synchronized_pool_resource::~synchronized_pool_resource())
3386 (synchronized_pool_resource::release()): Check __gthread_active_p
3387 before creating and/or deleting the thread-specific data key.
3388 (synchronized_pool_resource::_M_thread_specific_pools()): Adjust
3390 (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast
3391 path for single-threaded case.
3392 (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)):
3393 Likewise. Return if unable to find a pool that owns the allocation.
3394 * testsuite/20_util/synchronized_pool_resource/allocate_single.cc:
3396 * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New
3398 * testsuite/20_util/synchronized_pool_resource/release_single.cc: New
3401 2020-05-03 Jonathan Wakely <jwakely@redhat.com>
3404 * include/bits/stl_algobase.h (__fill_a1): Make overload for byte types
3405 usable in constant expressions.
3406 * testsuite/25_algorithms/fill_n/constexpr.cc: Test with bytes and
3409 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
3412 * testsuite/17_intro/badnames.cc: Test values between _E9 and _E24 too.
3414 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
3415 Patrick Palka <ppalka@redhat.com>
3418 * include/bits/iterator_concepts.h (ranges::__cust_imove::_IMove):
3419 Add trait to determine return type and an alias for it.
3420 (ranges::__cust_imove::_IMove::operator()): Use __result instead of
3421 deduced return type.
3422 (iter_rvalue_reference_t): Use _IMove::__type instead of checking
3423 the result of ranges::iter_move.
3424 (__detail::__indirectly_readable_impl): Use iter_rvalue_reference_t
3425 instead of checking the result of ranges::iter_move.
3426 * testsuite/24_iterators/customization_points/92894.cc: New test.
3427 * testsuite/24_iterators/indirect_callable/92894.cc: New test.
3429 2020-05-01 Jonathan Wakely <jwakely@redhat.com>
3432 * include/std/type_traits (__is_complete_or_unbounded): Replace
3433 BADNAME _T with _Tp.
3434 * testsuite/17_intro/badnames.cc: New test.
3436 2020-04-30 Jonathan Wakely <jwakely@redhat.com>
3439 * include/bits/alloc_traits.h (allocator_traits::_S_construct)
3440 (allocator_traits::_S_destroy)
3441 (allocator_traits<allocator<T>>::construct): Use traits in
3442 noexcept-specifiers.
3443 * include/bits/allocator.h (allocator<void>::construct)
3444 (allocator<void>::destroy): Likewise.
3445 * include/ext/malloc_allocator.h (malloc_allocator::construct)
3446 (malloc_allocator::destroy): Likewise.
3447 * include/ext/new_allocator.h (new_allocator::construct)
3448 (new_allocator::destroy): Likewise.
3449 * testsuite/20_util/allocator/89510.cc: New test.
3450 * testsuite/ext/malloc_allocator/89510.cc: New test.
3451 * testsuite/ext/new_allocator/89510.cc: New test.
3453 2020-04-29 Jonathan Wakely <jwakely@redhat.com>
3456 * include/bits/basic_string.tcc: Update comment about explicit
3459 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
3462 * include/bits/allocator.h (__cpp_lib_allocator_is_always_equal):
3463 Remove non-standard macro.
3464 * include/bits/stl_iterator.h (__cpp_lib_constexpr_iterator): Define
3465 to indicate P1032R1 support.
3466 * include/bits/stl_pair.h (__cpp_lib_constexpr_utility): Likewise.
3467 * include/std/string_view (__cpp_lib_constexpr_string_view): Likewise.
3468 * include/std/tuple (__cpp_lib_constexpr_tuple): Likewise.
3469 * include/std/version (__cpp_lib_allocator_is_always_equal): Remove.
3470 (__cpp_lib_constexpr_iterator, __cpp_lib_constexpr_string_view)
3471 (__cpp_lib_constexpr_tuple, __cpp_lib_constexpr_utility): Define.
3472 * testsuite/20_util/function_objects/constexpr_searcher.cc: Check
3474 * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc: Likewise.
3475 * testsuite/21_strings/basic_string_view/operations/copy/char/
3476 constexpr.cc: Likewise.
3477 * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
3480 * include/bits/alloc_traits.h (_S_construct): Restore placement
3481 new-expression for C++11/14/17 and call std::construct_at directly
3483 * include/bits/stl_construct.h (_Construct): Revert to non-constexpr
3484 function returning void.
3485 * testsuite/20_util/specialized_algorithms/
3486 uninitialized_value_construct/94831.cc: New test.
3487 * testsuite/23_containers/vector/cons/94831.cc: New test.
3489 2020-04-28 Patrick Palka <ppalka@redhat.com>
3491 LWG 3433 subrange::advance(n) has UB when n < 0
3492 * include/std/ranges (subrange::prev): Fix typo.
3493 (subrange::advance): Handle a negative argument as per the proposed
3494 resolution of LWG 3433.
3495 * testsuite/std/ranges/subrange/lwg3433.cc: New test.
3497 2020-04-28 Jonathan Wakely <jwakely@redhat.com>
3498 Iain Sandoe <iain@sandoe.co.uk>
3501 * include/std/coroutine: Implement handing for non-
3502 class coroutine return types.
3504 2020-04-24 Jonathan Wakely <jwakely@redhat.com>
3506 * include/experimental/executor (service_already_exists): Make default
3507 constructor public (LWG 3414).
3508 * testsuite/experimental/net/execution_context/make_service.cc: Check
3509 the service_already_exists can be default constructed.
3511 2020-04-24 Kamlesh Kumar <kamleshbhalui@gmail.com>
3512 Jonathan Wakely <jwakely@redhat.com>
3516 * include/std/any (any): Rename template parameters for consistency
3518 (any::_Decay): Rename to _Decay_if_not_any.
3519 (any::any(T&&):: Remove is_constructible from constraints. Remove
3520 non-standard overload.
3521 (any::any(in_place_type_t<T>, Args&&...))
3522 (any::any(in_place_type_t<T>, initializer_list<U>, Args&&...))
3523 (any::emplace(Args&&...))
3524 (any::emplace(initializer_list<U>, Args&&...)):
3525 Use decay_t instead of _Decay.
3526 * testsuite/20_util/any/cons/90415.cc: New test.
3527 * testsuite/20_util/any/cons/92156.cc: New Test.
3528 * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives
3530 * testsuite/20_util/any/modifiers/92156.cc: New test.
3532 2020-04-23 Jonathan Wakely <jwakely@redhat.com>
3534 * doc/xml/manual/status_cxx2020.xml: Update C++20 status table.
3535 * doc/html/*: Regenerate.
3537 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Revert
3538 value for C++17 to 201803L because P0858R0 is supported for C++17.
3539 * include/std/version (__cpp_lib_array_constexpr): Likewise.
3540 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
3541 Check for value corresponding to P0031R0 features being tested.
3542 * testsuite/23_containers/array/requirements/constexpr_iter.cc:
3543 Check for value corresponding to P0858R0 features being tested.
3545 * include/std/version (__cpp_lib_three_way_comparison): Define for
3546 freestanding builds.
3548 2020-04-23 Thomas Rodgers <rodgert@appliantology.com>
3550 * include/experimental/net/executor (system_context): Mark
3551 system_context::system_context() = delete.
3552 * testsuite/experimental/net/executor/1.cc: Add new
3553 test to check system_context is not default constructible.
3555 2020-04-23 Iain Sandoe <iain@sandoe.co.uk>
3557 * include/std/coroutine: Update the inline namespace to __n4861.
3558 Add the __cpp_lib_coroutine define, set to 201902L.
3559 * include/std/version: Add __cpp_lib_coroutine, set to 201902L.
3561 2020-04-22 Jonathan Wakely <jwakely@redhat.com>
3563 * include/std/execution (__cpp_lib_execution): Define to indicate
3564 support for P0024R2 and P1001R2.
3565 * include/std/version (__cpp_lib_execution): Define.
3566 * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro
3567 defined by <algorithm>, move other tests to new tests ...
3568 * testsuite/25_algorithms/pstl/feature_test-2.cc: New test.
3569 * testsuite/25_algorithms/pstl/feature_test-3.cc: New test.
3570 * testsuite/25_algorithms/pstl/feature_test-4.cc: New test.
3571 * testsuite/25_algorithms/pstl/feature_test-5.cc: New test.
3573 * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Define
3574 different values for C++17 and C++20, to indicate different feature
3575 sets. Update value for C++20 to indicate P1032R1 support.
3576 * include/std/version (__cpp_lib_array_constexpr): Likewise.
3577 * testsuite/23_containers/array/comparison_operators/constexpr.cc:
3578 Check feature test macro.
3579 * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
3581 * testsuite/23_containers/array/requirements/constexpr_fill.cc: Check
3583 * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test
3584 in C++17 mode and check feature test macro.
3586 * include/std/utility (__cpp_lib_constexpr_algorithms): Do not define
3588 * testsuite/20_util/exchange/constexpr.cc: Do not expect macro to be
3589 defined by <utility>.
3591 * include/std/functional (__cpp_lib_concepts): Update macro value to
3592 indicate P1964R2 support.
3593 * include/std/version (__cpp_lib_concepts): Likewise.
3594 * testsuite/std/concepts/1.cc: Adjust expected value.
3595 * testsuite/std/concepts/2.cc: Likewise.
3597 * include/std/functional (__cpp_lib_constexpr_invoke): Rename to
3598 __cpp_lib_constexpr_functional.
3599 * include/std/version (__cpp_lib_constexpr_invoke): Likewise.
3600 * testsuite/20_util/function_objects/invoke/constexpr.cc: Adjust.
3602 * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to
3603 indicate P1006R1 support.
3604 (__cpp_lib_to_address): Define to indicate P0653R2 support.
3605 * include/bits/range_access.h (__cpp_lib_ssize): Define to indicate
3607 * include/bits/ranges_algo.h (__cpp_lib_shift): Define to indicate
3609 * include/std/atomic (__cpp_lib_atomic_float): Define to indicate
3611 * include/std/memory (__cpp_lib_assume_aligned): Define to indicate
3613 * include/std/memory_resource (__cpp_lib_polymorphic_allocator):
3614 Define to indicate P0339R6 support.
3615 * include/std/string_view (__cpp_lib_starts_ends_with): Define to
3616 indicate P0457R2 support.
3617 * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define
3618 to indicate P0758R1 support.
3619 (__cpp_lib_remove_cvref): Define to indicate P0550R2 support.
3620 (__cpp_lib_type_identity): Define to indicate P0887R1 support.
3621 * include/std/version (__cpp_lib_atomic_float)
3622 (__cpp_lib_is_nothrow_convertible, __cpp_lib_remove_cvref)
3623 (__cpp_lib_type_identity, __cpp_lib_assume_aligned)
3624 (__cpp_lib_constexpr_memory, __cpp_lib_polymorphic_allocator)
3625 (__cpp_lib_shift, __cpp_lib_ssize, __cpp_lib_starts_ends_with)
3626 (__cpp_lib_to_address): Define.
3627 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
3629 * include/bits/stl_map.h (__cpp_lib_map_insertion): Remove old
3631 * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion):
3633 * include/std/version (__cpp_lib_map_insertion)
3634 (__cpp_lib_unordered_map_insertion): Remove.
3636 * include/std/condition_variable (__cpp_lib_jthread): Remove
3637 redundant definition.
3638 * include/std/stop_token (__cpp_lib_jthread): Update macro value to
3639 indicate P1869R1 support.
3640 * include/std/version (__cpp_lib_jthread): Update value.
3641 * testsuite/30_threads/condition_variable_any/stop_token/1.cc: Check
3642 for updated macro value.
3643 * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
3645 * testsuite/30_threads/jthread/1.cc: Likewise.
3646 * testsuite/30_threads/jthread/2.cc: Likewise.
3647 * testsuite/30_threads/stop_token/1.cc: Likewise.
3648 * testsuite/30_threads/stop_token/2.cc: Likewise.
3650 * testsuite/21_strings/basic_string/erasure.cc: Check for
3651 __cpp_lib_erase_if macro.
3652 * testsuite/23_containers/deque/erasure.cc: Add header name to #error
3654 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
3655 * testsuite/23_containers/list/erasure.cc: Likewise.
3656 * testsuite/23_containers/map/erasure.cc: Likewise.
3657 * testsuite/23_containers/set/erasure.cc: Likewise.
3658 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
3659 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
3660 * testsuite/23_containers/vector/erasure.cc: Likewise.
3662 2020-04-21 Jonathan Wakely <jwakely@redhat.com>
3664 * include/bits/stl_iterator.h (__normal_iterator): Use synth-three-way
3665 to define operator<=>.
3666 * testsuite/24_iterators/normal_iterator/cmp_c++20.cc: New test.
3668 * doc/Makefile.am (xml_sources_manual): Add missing XML files.
3669 * doc/Makefile.in: Regenerate.
3670 * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead
3672 * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections
3673 to the C++11 status table.
3674 * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature
3675 proposals with table matching contents of the C++14 standard.
3676 * doc/xml/manual/status_cxx2017.xml: Add table matching contents of
3678 * doc/html/*: Regenerate.
3681 * include/std/type_traits (__is_nt_constructible_impl): Add partial
3682 specializations for bounded arrays with non-empty initializers.
3683 * testsuite/20_util/is_nothrow_constructible/value_c++20.cc: New test.
3685 2020-04-20 Thomas Rodgers <trodgers@redhat.com>
3687 * testsuite/lib/libstdc++.exp: Add additional_flags=
3688 -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when
3689 compiling with a newer Thread Building Blocks.
3691 2020-04-20 Jonathan Wakely <jwakely@redhat.com>
3693 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
3695 * testsuite/20_util/is_constructible/51185.cc: Make test class a
3696 non-aggregate so that the test verifies the same thing in all -std
3698 * testsuite/20_util/is_constructible/value-2.cc: Adjust expected
3699 results for some types when paren-init for aggregates is supported.
3701 * include/std/version (__cpp_lib_three_way_comparison): Update value.
3702 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
3703 (__detail::__synth3way): Add noexcept-specifier.
3705 * include/bits/stl_map.h (map): Define operator<=> and remove
3706 operator< for C++20.
3707 * include/bits/stl_multimap.h (multimap): Likewise.
3708 * include/bits/stl_multiset.h (multiset): Likewise.
3709 * include/bits/stl_set.h (set): Likewise.
3710 * include/bits/stl_tree.h (_Rb_tree): Likewise.
3711 (_Rb_tree_iterator, _Rb_tree_const_iterator): Remove redundant
3712 operator!= for C++20.
3713 * include/debug/map.h (__gnu_debug::map): Define operator<=> for C++20.
3714 * include/debug/multimap.h (__gnu_debug::multimap): Likewise.
3715 * include/debug/multiset.h (__gnu_debug::multiset): Likewise.
3716 * include/debug/set.h (__gnu_debug::set): Likewise.
3717 * testsuite/23_containers/map/operators/cmp_c++20.cc: New test.
3718 * testsuite/23_containers/multimap/operators/cmp_c++20.cc: New test.
3719 * testsuite/23_containers/multiset/operators/cmp_c++20.cc: New test.
3720 * testsuite/23_containers/set/operators/cmp_c++20.cc: New test.
3722 2020-04-20 Matthias Kretz <kretz@kde.org>
3724 * testsuite/lib/libstdc++.exp: Avoid illegal argument to verbose.
3726 2020-04-19 Jonathan Wakely <jwakely@redhat.com>
3728 * include/bits/stl_queue.h (queue): Define operator<=> for C++20.
3729 * include/bits/stl_stack.h (stack): Likewise.
3730 * testsuite/23_containers/queue/cmp_c++20.cc: New test.
3731 * testsuite/23_containers/stack/cmp_c++20.cc: New test.
3733 * include/bits/unordered_map.h (unordered_map, unordered_multimap):
3734 Remove redundant operator!= for C++20.
3735 * include/bits/unordered_set.h (unordered_set, unordered_multiset):
3737 * include/debug/unordered_map (unordered_map, unordered_multimap):
3739 * include/debug/unordered_set (unordered_set, unordered_multiset):
3743 * include/debug/formatter.h (_Error_formatter::_Parameter): Fix
3744 redundant assignment in constructor.
3746 2020-04-18 Jonathan Wakely <jwakely@redhat.com>
3748 * include/std/chrono (duration, time_point): Define operator<=> and
3749 remove redundant operator!= for C++20.
3750 * testsuite/20_util/duration/comparison_operators/three_way.cc: New
3752 * testsuite/20_util/time_point/comparison_operators/three_way.cc: New
3755 * testsuite/util/native_type/native_priority_queue.hpp: Use
3756 allocator_traits to rebind allocator.
3758 2020-04-17 Jonathan Wakely <jwakely@redhat.com>
3760 * include/bits/forward_list.h (forward_list): Define operator<=> and
3761 remove redundant comparison operators for C++20.
3762 * include/bits/stl_bvector.h (vector<bool, Alloc>): Likewise.
3763 * include/bits/stl_deque.h (deque): Likewise.
3764 * include/bits/stl_iterator.h (__normal_iterator): Likewise.
3765 * include/bits/stl_list.h (list): Likewise.
3766 * include/bits/stl_vector.h (vector): Likewise.
3767 * include/debug/deque (__gnu_debug::deque): Likewise.
3768 * include/debug/forward_list (__gnu_debug::forward_list): Likewise.
3769 * include/debug/list (__gnu_debug::list): Likewise.
3770 * include/debug/safe_iterator.h (__gnu_debug::_Safe_iterator):
3772 * include/debug/vector (__gnu_debug::vector): Likewise.
3773 * include/ext/pointer.h (__gnu_cxx::_Pointer_adapter): Define
3774 operator<=> for C++20.
3775 * testsuite/23_containers/deque/operators/cmp_c++20.cc: New test.
3776 * testsuite/23_containers/forward_list/cmp_c++20.cc: New test.
3777 * testsuite/23_containers/list/cmp_c++20.cc: New test.
3778 * testsuite/23_containers/vector/bool/cmp_c++20.cc: New test.
3779 * testsuite/23_containers/vector/cmp_c++20.cc: New test.
3781 * include/bits/basic_string.h (basic_string): Define operator<=> and
3782 remove redundant comparison operators for C++20.
3783 * include/bits/char_traits.h (__gnu_cxx::char_traits, char_traits):
3784 Add comparison_category members.
3785 (__detail::__char_traits_cmp_cat): New helper to get comparison
3786 category from char traits class.
3787 * include/bits/regex.h (regex_traits::_RegexMask::operator!=): Do not
3789 (sub_match): Define operator<=> and remove redundant comparison
3790 operators for C++20.
3791 (match_results): Remove redundant operator!= for C++20.
3792 * include/std/string_view (basic_string_view): Define operator<=> and
3793 remove redundant comparison operators for C++20.
3794 * testsuite/21_strings/basic_string/operators/char/cmp_c++20.cc: New
3796 * testsuite/21_strings/basic_string/operators/wchar_t/cmp_c++20.cc:
3798 * testsuite/21_strings/basic_string_view/operations/copy/char/
3799 constexpr.cc: Initialize variable.
3800 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
3801 constexpr.cc: Likewise.
3802 * testsuite/21_strings/basic_string_view/operators/char/2.cc: Add
3803 dg-do directive and remove comments showing incorrect signatures.
3804 * testsuite/21_strings/basic_string_view/operators/wchar_t/2.cc:
3806 * testsuite/21_strings/basic_string_view/operators/char/cmp_c++20.cc:
3808 * testsuite/21_strings/basic_string_view/operators/wchar_t/cmp_c++20.cc:
3810 * testsuite/28_regex/sub_match/compare_c++20.cc: New test.
3812 2020-04-16 Jonathan Wakely <jwakely@redhat.com>
3814 * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Remove
3815 name of unused parameter.
3817 2020-04-15 Jonathan Wakely <jwakely@redhat.com>
3819 * include/bits/fs_dir.h (file_status): Define operator== for C++20.
3820 (directory_entry): Define operator<=> and remove redundant comparison
3821 operators for C++20.
3822 * include/bits/fs_fwd.h (space_info): Define operator== for C++20.
3823 * include/bits/fs_path.h (path): Define operator<=> and remove
3824 redundant comparison operators for C++20.
3825 * testsuite/27_io/filesystem/path/compare/compare.cc: Fix comment.
3826 * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise.
3827 * testsuite/27_io/filesystem/path/compare/path.cc: Likewise.
3828 * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise.
3830 * include/bits/allocator.h (operator!=): Do not define for C++20.
3831 * include/bits/locale_classes.h (operator!=): Likewise.
3832 * include/bits/std_function.h (operator==(nullptr_t, const function&))
3833 (operator!=(const function&, nullptr_t))
3834 (operator!=(nullptr_t, const function&)): Likewise.
3835 * include/ext/bitmap_allocator.h (operator!=): Likewise.
3836 * include/ext/debug_allocator.h (operator!=): Likewise.
3837 * include/ext/extptr_allocator.h (operator!=): Likewise.
3838 * include/ext/malloc_allocator.h (operator!=): Likewise.
3839 * include/ext/mt_allocator.h (operator!=): Likewise.
3840 * include/ext/new_allocator.h (operator!=): Likewise.
3841 * include/ext/pool_allocator.h (operator!=): Likewise.
3842 * include/ext/throw_allocator.h (operator!=): Likewise.
3843 * include/std/bitset (bitset::operator!=): Likewise.
3844 * include/std/memory_resource (operator!=): Likewise.
3845 * include/std/scoped_allocator (operator!=): Likewise.
3847 * include/std/typeindex (operator<=>): Define for C++20.
3848 * testsuite/20_util/typeindex/comparison_operators_c++20.cc: New test.
3850 2020-04-14 Jonathan Wakely <jwakely@redhat.com>
3852 * libsupc++/compare (compare_three_way): Fix constraint so that
3853 BUILTIN-PTR-THREE-WAY does not require three_way_comparable_with.
3854 * testsuite/18_support/comparisons/object/builtin-ptr-three-way.cc:
3858 * include/bits/shared_ptr.h (operator<=>): Define for C++20.
3859 * include/bits/shared_ptr_base.h (operator<=>): Likewise.
3860 * include/bits/unique_ptr.h (operator<=>): Add inline specifier.
3861 * testsuite/20_util/shared_ptr/comparison/cmp_c++20.cc: New test.
3862 * testsuite/20_util/shared_ptr/comparison/less.cc: Do not expect
3863 std::less<A*> to be used when comparing std::shared_ptr<A> objects in
3867 * libsupc++/compare (__unspec): Add noexcept-specifier to constructor.
3868 * testsuite/18_support/comparisons/categories/94565.cc: New test.
3870 2020-04-13 Iain Sandoe <iain@sandoe.co.uk>
3872 * include/std/coroutine: Update coroutines builtin define,
3875 2020-04-09 Jonathan Wakely <jwakely@redhat.com>
3877 * libsupc++/compare (compare_three_way): Fix noexcept-specifier.
3878 (strong_order, weak_order, partial_order): Replace uses of <=> with
3879 compare_three_way function object (LWG 3324).
3880 * testsuite/18_support/comparisons/algorithms/partial_order.cc: Add
3881 equality operator so that X satisfies three_way_comparable.
3882 * testsuite/18_support/comparisons/algorithms/strong_order.cc:
3884 * testsuite/18_support/comparisons/algorithms/weak_order.cc: Likewise.
3886 * include/bits/unique_ptr.h (operator<=>): Define for C++20.
3887 * testsuite/20_util/default_delete/48631_neg.cc: Adjust dg-error line.
3888 * testsuite/20_util/default_delete/void_neg.cc: Likewise.
3889 * testsuite/20_util/unique_ptr/comparison/compare.cc: New test.
3890 * testsuite/20_util/unique_ptr/comparison/compare_c++20.cc: New test.
3892 2020-04-08 Jonathan Wakely <jwakely@redhat.com>
3894 * include/bits/slice_array.h (operator==(const slice&, const slice&)):
3896 * include/std/complex (operator==(const T&, const complex<T>&))
3897 (operator!=(const complex<T>&, const complex<T>&))
3898 (operator!=(const complex<T>&, const T&))
3899 (operator!=(const T&, const complex<T>&)): Do not declare for C++20.
3900 * testsuite/26_numerics/slice/compare.cc: New test.
3902 * include/std/charconv (to_chars_result, from_chars_result): Add
3903 defaulted equality comparisons for C++20.
3904 * testsuite/20_util/from_chars/compare.cc: New test.
3905 * testsuite/20_util/to_chars/compare.cc: New test.
3907 2020-04-07 Jonathan Wakely <jwakely@redhat.com>
3910 * include/std/charconv (__integer_to_chars_result_type)
3911 (__integer_from_chars_result_type): Use __or_ instead of __or_v_ to
3913 * testsuite/20_util/from_chars/1.cc: Run test as C++14 and replace
3914 use of std::string_view with std::string.
3915 * testsuite/20_util/from_chars/2.cc: Likewise.
3916 * testsuite/20_util/to_chars/1.cc: Likewise.
3917 * testsuite/20_util/to_chars/2.cc: Likewise.
3919 2020-04-06 Jonathan Wakely <jwakely@redhat.com>
3922 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Make it
3923 usable in constant expressions for C++20.
3924 (__gnu_cxx::char_traits::copy, __gnu_cxx::char_traits::assign): Add
3925 _GLIBCXX20_CONSTEXPR.
3926 (std::char_traits<char>, std::char_traits<wchar_t>)
3927 (std::char_traits<char8_t>): Make move, copy and assign usable in
3928 constant expressions for C++20.
3929 (std::char_traits<char16_t>, std::char_traits<char32_t>): Make move
3930 and copy usable in constant expressions for C++20.
3931 * include/std/string_view (basic_string_view::copy): Add
3932 _GLIBCXX20_CONSTEXPR.
3933 * testsuite/21_strings/basic_string_view/operations/copy/char/
3934 constexpr.cc: New test.
3935 * testsuite/21_strings/basic_string_view/operations/copy/wchar_t/
3936 constexpr.cc: New test.
3938 2020-04-05 Gerald Pfeifer <gerald@pfeifer.com>
3940 * doc/xml/manual/appendix_contributing.xml: Refer to Git
3941 documentation instead of Subversion. Switch to https.
3942 * doc/html/manual/appendix_contributing.html: Regenerate.
3944 2020-04-03 Jonathan Wakely <jwakely@redhat.com>
3947 * include/bits/ptr_traits.h (__to_address): Add special case for debug
3948 iterators, to avoid dereferenceable check.
3949 * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number.
3950 * testsuite/20_util/to_address/debug.cc: New test.
3952 2020-04-01 Andrea Corallo <andrea.corallo@arm.com>
3954 * testsuite/experimental/net/execution_context/use_service.cc:
3955 Require pthread and gthreads.
3957 2020-04-01 Gerald Pfeifer <gerald@pfeifer.com>
3959 * doc/xml/manual/appendix_free.xml: Move "free books" list from
3961 * doc/html/manual/appendix_free.html: Regenerate.
3963 2020-03-31 Ville Voutilainen <ville.voutilainen@gmail.com>
3965 Library-side tests for parenthesized aggregate init
3970 * testsuite/20_util/allocator_traits/members/92878_92947.cc: New.
3971 * testsuite/20_util/any/assign/92878_92947.cc: Likewise.
3972 * testsuite/20_util/any/cons/92878_92947.cc: Likewise.
3973 * testsuite/20_util/is_constructible/92878_92947.cc: Likewise.
3974 * testsuite/20_util/optional/assignment/92878_92947.cc: Likewise.
3975 * testsuite/20_util/optional/cons/92878_92947.cc: Likewise.
3976 * testsuite/20_util/pair/cons/92878_92947.cc: Likewise.
3977 * testsuite/20_util/shared_ptr/creation/92878_92947.cc: Likewise.
3978 * testsuite/20_util/specialized_algorithms/construct_at/92878_92947.cc:
3980 * testsuite/20_util/unique_ptr/creation/92878_92947.cc: Likewise.
3981 * testsuite/20_util/uses_allocator/92878_92947.cc: Likewise.
3982 * testsuite/20_util/variant/92878_92947.cc: Likewise.
3983 * testsuite/23_containers/deque/modifiers/emplace/92878_92947.cc:
3985 * testsuite/23_containers/forward_list/modifiers/92878_92947.cc:
3987 * testsuite/23_containers/list/modifiers/emplace/92878_92947.cc:
3989 * testsuite/23_containers/map/modifiers/emplace/92878_92947.cc:
3991 * testsuite/23_containers/multimap/modifiers/emplace/92878_92947.cc:
3993 * testsuite/23_containers/multiset/modifiers/emplace/92878_92947.cc:
3995 * testsuite/23_containers/priority_queue/92878_92947.cc: Likewise.
3996 * testsuite/23_containers/queue/92878_92947.cc: Likewise.
3997 * testsuite/23_containers/set/modifiers/emplace/92878_92947.cc:
3999 * testsuite/23_containers/stack/92878_92947.cc: Likewise.
4000 * testsuite/23_containers/unordered_map/modifiers/92878_92947.cc:
4002 * testsuite/23_containers/unordered_multimap/modifiers/92878_92947.cc:
4004 * testsuite/23_containers/unordered_multiset/modifiers/92878_92947.cc:
4006 * testsuite/23_containers/unordered_set/modifiers/92878_92947.cc:
4008 * testsuite/23_containers/vector/modifiers/emplace/92878_92947.cc:
4011 2020-03-28 Jonathan Wakely <jwakely@redhat.com>
4013 * testsuite/20_util/is_constructible/value-2.cc: Fix test to account
4014 for changes due to parenthesized aggregate-initialization in C++20.
4015 * testsuite/20_util/time_point/cons/81468.cc: Fix test to not clash
4016 with std::chrono::sys_time in C++20.
4018 * include/bits/stl_iterator.h (reverse_iterator): Use requires-clause
4019 to constrain C++20 versions of comparison operators. Fix backwards
4020 logic of relational operators.
4021 (move_iterator): Use requires-clause to constrain comparison operators
4022 in C++20. Do not declare non-standard same-type overloads for C++20.
4023 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: Check result
4024 of comparisons and check using greedy_ops type.
4025 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: Likewise.
4026 * testsuite/24_iterators/move_iterator/greedy_ops.cc: Remove redundant
4027 main function from compile-only test.
4028 * testsuite/24_iterators/reverse_iterator/greedy_ops.cc: Likewise.
4030 2020-03-27 Jonathan Wakely <jwakely@redhat.com>
4032 * include/bits/range_cmp.h (__cpp_lib_ranges): Define.
4033 * include/bits/stl_iterator.h: Check value of __cpp_concepts so that
4034 C++20 concepts are required.
4035 * include/bits/stl_iterator_base_types.h: Likewise.
4036 * include/std/concepts: Likewise.
4037 * include/std/version: Likewise.
4038 * testsuite/std/ranges/headers/ranges/synopsis.cc: Check feature test
4041 * include/bits/stl_iterator.h (reverse_iterator::iterator_concept)
4042 (reverse_iterator::iterator_category): Define for C++20.
4043 (reverse_iterator): Define comparison operators correctly for C++20.
4044 (__normal_iterator): Add constraints to comparison operators for C++20.
4045 (move_iterator::operator++(int)) [__cpp_lib_concepts]: Define new
4046 overload for input iterators.
4047 (move_iterator): Add constraints to comparison operators for C++20.
4048 Define operator<=> for C++20.
4049 * testsuite/24_iterators/move_iterator/input_iterator.cc: New test.
4050 * testsuite/24_iterators/move_iterator/move_only.cc: New test.
4051 * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: New test.
4052 * testsuite/24_iterators/reverse_iterator/rel_ops_c++20.cc: New test.
4054 * include/bits/iterator_concepts.h (__detail::__decay_copy)
4055 (__detail::__member_begin, __detail::__adl_begin): Move here from
4056 <bits/range_access.h>.
4057 (__detail::__ranges_begin, __detail::__range_iter_t): Define.
4058 * bits/range_access.h (__cust_access::__decay_copy)
4059 (__cust_access::__member_begin, __cust_access::__adl_begin): Move to
4060 <bits/iterator_concepts.h>.
4061 (ranges::iterator_t): Use __detail::__range_iter_t.
4062 * include/bits/stl_iterator.h (back_insert_iterator): Simplify
4063 conditional compilation. Add _GLIBCXX20_CONSTEXPR to all members.
4064 (front_insert_iterator): Likewise.
4065 (insert_iterator): Implement changes from P0896R4 for C++20.
4066 * testsuite/24_iterators/back_insert_iterator/constexpr.cc: New test.
4067 * testsuite/24_iterators/front_insert_iterator/constexpr.cc: New test.
4068 * testsuite/24_iterators/headers/iterator/synopsis_c++17.cc: Adjust
4069 for inclusion in synopsis_c++20.cc which expects different signatures
4070 for some function templates.
4071 * testsuite/24_iterators/insert_iterator/constexpr.cc: New test.
4073 * include/std/type_traits (__is_array_convertible): Move definition
4074 to immediately after is_convertible.
4076 2020-03-26 Jonathan Wakely <jwakely@redhat.com>
4078 * include/std/chrono (chrono::days, chrono::weeks, chrono::years)
4079 (chrono::months, chrono::sys_days, chrono::local_t)
4080 (chrono::local_time, chrono::local_seconds, chrono::local_days):
4082 (chrono::time_point): Add missing static assert.
4083 * testsuite/20_util/time_point/requirements/duration_neg.cc: New test.
4084 * testsuite/std/time/clock/file/overview.cc: New test.
4085 * testsuite/std/time/clock/file/members.cc: New test.
4086 * testsuite/std/time/syn_c++20.cc: New test.
4088 2020-03-25 Mike Crowe <mac@mcrowe.com>
4090 * testsuite/30_threads/shared_timed_mutex/try_lock_until/1.cc: New
4092 * testsuite/30_threads/shared_timed_mutex/try_lock_until/2.cc: New
4095 2020-03-25 Jonathan Wakely <jwakely@redhat.com>
4097 * include/bits/fs_fwd.h (filesystem::__file_clock): Move to ...
4098 * include/std/chrono (filesystem::__file_clock): Here.
4099 (filesystem::__file_clock::from_sys, filesystem::__file_clock::to_sys):
4100 Define public member functions for C++20.
4101 (is_clock, is_clock_v): Define traits for C++20.
4102 * include/std/condition_variable (condition_variable::wait_until): Add
4103 check for valid clock.
4104 * include/std/future (_State_baseV2::wait_until): Likewise.
4105 * include/std/mutex (__timed_mutex_impl::_M_try_lock_until): Likewise.
4106 * include/std/shared_mutex (shared_timed_mutex::try_lock_shared_until):
4108 * include/std/thread (this_thread::sleep_until): Likewise.
4109 * testsuite/30_threads/condition_variable/members/2.cc: Qualify
4110 slow_clock with new namespace.
4111 * testsuite/30_threads/condition_variable/members/clock_neg.cc: New
4113 * testsuite/30_threads/condition_variable_any/members/clock_neg.cc:
4115 * testsuite/30_threads/future/members/clock_neg.cc: New test.
4116 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/3.cc:
4117 Qualify slow_clock with new namespace.
4118 * testsuite/30_threads/recursive_timed_mutex/try_lock_until/
4119 clock_neg.cc: New test.
4120 * testsuite/30_threads/shared_future/members/clock_neg.cc: New
4122 * testsuite/30_threads/shared_lock/locking/clock_neg.cc: New test.
4123 * testsuite/30_threads/shared_timed_mutex/try_lock_until/clock_neg.cc:
4125 * testsuite/30_threads/timed_mutex/try_lock_until/3.cc: Qualify
4126 slow_clock with new namespace.
4127 * testsuite/30_threads/timed_mutex/try_lock_until/4.cc: Likewise.
4128 * testsuite/30_threads/timed_mutex/try_lock_until/clock_neg.cc: New
4130 * testsuite/30_threads/unique_lock/locking/clock_neg.cc: New test.
4131 * testsuite/std/time/traits/is_clock.cc: New test.
4132 * testsuite/util/slow_clock.h (slow_clock): Move to __gnu_test
4135 2020-03-21 Jonathan Wakely <jwakely@redhat.com>
4138 * include/experimental/bits/fs_path.h (path::generic_string<C,T,A>()):
4139 * testsuite/experimental/filesystem/path/generic/generic_string.cc:
4140 Improve test coverage.
4143 * include/bits/fs_path.h (path::_S_str_convert): Replace first
4144 parameter with basic_string_view so that strings with different
4145 allocators can be accepted.
4146 (path::generic_string<C,T,A>()): Use basic_string object that uses the
4147 right allocator type.
4148 * testsuite/27_io/filesystem/path/generic/94242.cc: New test.
4149 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve
4152 2020-03-18 Jonathan Wakely <jwakely@redhat.com>
4155 * include/std/type_traits (__is_nt_default_constructible_atom): Remove.
4156 (__is_nt_default_constructible_impl): Remove.
4157 (__is_nothrow_default_constructible_impl): Remove.
4158 (__is_nt_constructible_impl): Add bool template parameter. Adjust
4159 partial specializations.
4160 (__is_nothrow_constructible_impl): Replace class template with alias
4162 (is_nothrow_default_constructible): Derive from alias template
4163 __is_nothrow_constructible_impl instead of
4164 __is_nothrow_default_constructible_impl.
4165 * testsuite/20_util/is_nothrow_constructible/94003.cc: New test.
4167 * include/std/stop_token (stop_token::_Stop_state_ref): Define
4168 comparison operators explicitly if the compiler won't synthesize them.
4170 * include/bits/stl_algobase.h (__lexicographical_compare_aux): Check
4171 __cpp_lib_concepts before using iter_reference_t.
4172 * include/bits/stream_iterator.h (istream_iterator): Check
4173 __cpp_lib_concepts before using default_sentinel_t.
4174 * include/bits/streambuf_iterator.h (istreambuf_iterator): Likewise.
4177 * include/experimental/executor (executor::executor(Executor)): Call
4178 make_shared directly instead of _M_create. Create _Tgt1 object.
4179 (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)):
4180 Call allocate_shared directly instead of _M_create. Create _Tgt2
4182 (executor::target_type): Add cast needed for new _Tgt interface.
4183 (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func.
4184 (executor::_Tgt): Define the same interface whether RTTI is enabled or
4186 (executor::_Tgt::target_type, executor::_Tgt::target): Do not use
4187 std::type_info in the interface.
4188 (executor::_Tgt::_M_func): Add data member.
4189 (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates.
4190 (executor::_Tgt1::_S_func): Define function to access target without
4192 (executor::_M_create): Remove.
4193 (operator==, operator!=): Simplify comparisons for executor.
4194 * include/experimental/socket (is_error_code_enum<socket_errc>):
4195 Define specialization before use.
4196 * testsuite/experimental/net/executor/1.cc: New test.
4198 2020-03-16 Jonathan Wakely <jwakely@redhat.com>
4201 * include/experimental/executor (service_already_exists): Add default
4202 constructor. Declare make_service to be a friend.
4203 * testsuite/experimental/net/execution_context/make_service.cc: New
4206 2020-03-12 Jonathan Wakely <jwakely@redhat.com>
4208 * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass
4209 a null pointer to functions with nonnull(1) attribute.
4211 2020-03-11 Patrick Palka <ppalka@redhat.com>
4213 * include/std/ranges (split_view::_OuterIter::_OuterIter): Typo fix,
4214 'address' -> 'std::__addressof'.
4215 * testsuite/std/ranges/adaptors/split.cc: Test taking the split_view of
4216 a non-forward input_range.
4217 * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Make
4218 default constructor protected instead of deleted, like with
4219 input_iterator_wrapper.
4220 (test_range::iterator): Add comment explaining that this type is used
4221 only when the underlying wrapper is input_iterator_wrapper or
4222 output_iterator_wrapper. Remove delegating defaulted constructor so
4223 that the inherited default constructor is used instead.
4225 LWG 3286 ranges::size is not required to be valid after a call to
4226 ranges::begin on an input range
4227 * include/std/ranges (subrange::subrange): Split single-argument
4228 constructor into two, one constrained by _S_store_size and another by
4230 (take_view::begin): Call size() before calling ranges::begin(_M_base).
4231 * testsuite/std/ranges/adaptors/lwg3286.cc: New test.
4232 * testsuite/std/ranges/subrange/lwg3286.cc: New test.
4234 2020-03-10 Jonathan Wakely <jwakely@redhat.com>
4236 * include/std/ranges (split_view::_OuterIter::__at_end): Use __current
4237 instead of _M_current.
4238 (split_view::_OuterIter::operator++): Likewise.
4240 * include/std/ranges (transform_view::_Iterator::__iter_move): Remove.
4241 (transform_view::_Iterator::operator*): Add noexcept-specifier.
4242 (transform_view::_Iterator::iter_move): Inline __iter_move body here.
4243 (split_view::_OuterIter::__current): Add noexcept.
4244 (split_view::_InnerIter::__iter_swap): Remove.
4245 (split_view::_InnerIter::__iter_move): Remove.
4246 (split_view::_InnerIter::_M_i_current): New accessors.
4247 (split_view::_InnerIter::__at_end): Use _M_i_current().
4248 (split_view::_InnerIter::operator*): Likewise.
4249 (split_view::_InnerIter::operator++): Likewise.
4250 (iter_move(const _InnerIter&)): Likewise.
4251 (iter_swap(const _InnerIter&, const _InnerIter&)): Likewise.
4252 * testsuite/std/ranges/adaptors/split.cc: Check noexcept-specifier
4253 for iter_move and iter_swap on split_view's inner iterator.
4256 * include/std/ranges (ranges::transform_view::_Iterator::iter_move):
4257 Change expression in noexcept-specifier to match function body.
4259 * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Add
4260 comment explaining multiple dg-do directives.
4261 * testsuite/24_iterators/ostream_iterator/1.cc: Fix do-do directive
4262 so test is run as well as compiled.
4264 2020-03-09 Jonathan Wakely <jwakely@redhat.com>
4267 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to
4268 handle concatenations that change the type of the first component.
4269 (path::operator+=(basic_string_view<value_type>)): Likewise.
4270 * testsuite/27_io/filesystem/path/concat/94063.cc: New test.
4272 2020-03-06 Patrick Palka <ppalka@redhat.com>
4274 * include/std/ranges (join_view::_Sentinel<_Const>): Befriend
4275 join_view::_Sentinel<!_Const>.
4276 * testsuite/std/ranges/adaptors/join.cc: Augment test.
4279 * include/bits/range_access.h (__cust_access::_Empty::operator()):
4280 Declare return type to be bool instead of auto.
4281 * testsuite/std/ranges/adaptors/93978.cc: New test.
4283 2020-03-06 Jonathan Wakely <jwakely@redhat.com>
4286 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER]
4287 (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect
4288 second argument to __glibcxx_rwlock_init.
4289 * testsuite/30_threads/shared_timed_mutex/94069.cc: New test.
4292 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Adjust
4293 test to not fail due to PR 94063.
4294 * testsuite/27_io/filesystem/path/generic/utf.cc: Likewise.
4295 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: Likewise.
4297 2020-03-06 Andreas Krebbel <krebbel@linux.ibm.com>
4299 * src/c++11/system_error.cc: Omit the ENOTSUP case statement if it
4302 2020-03-05 Jonathan Wakely <jwakely@redhat.com>
4304 * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable.
4305 * testsuite/27_io/filesystem/operations/copy.cc: Fix typo.
4306 * testsuite/experimental/filesystem/operations/copy.cc: Likewise.
4307 * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type
4308 for return value, and in comparison.
4309 * testsuite/experimental/filesystem/operations/file_size.cc: Likewise.
4312 * include/std/string_view: Include <bits/ostream_insert.h>.
4313 * testsuite/21_strings/basic_string_view/inserters/94051.cc: New test.
4315 2020-03-04 Jonathan Wakely <jwakely@redhat.com>
4317 * include/bits/cpp_type_traits.h (__memcpyable): Fix comment.
4319 2020-03-04 Patrick Palka <ppalka@redhat.com>
4322 * include/bits/ranges_algobase.h (__fill_n_fn::operator()): Refine
4323 condition for when to use memset, making sure to additionally check that
4324 the output pointer's value type is a non-volatile byte type. Instead of
4325 requiring that the fill type is a byte type, just require that it's an
4327 * testsuite/20_util/specialized_algorithms/uninitialized_fill/94017.cc:
4329 * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/94017.cc:
4331 * testsuite/25_algorithms/fill/94013.cc: Uncomment part of test that was
4332 blocked by PR 94017.
4333 * testsuite/25_algorithms/fill/94017.cc: New test.
4334 * testsuite/25_algorithms/fill_n/94017.cc: New test.
4336 LWG 3355 The memory algorithms should support move-only input iterators
4338 * include/bits/ranges_uninitialized.h
4339 (__uninitialized_copy_fn::operator()): Use std::move to avoid attempting
4340 to copy __ifirst, which could be a move-only input iterator. Use
4341 operator- instead of ranges::distance to compute distance from a sized
4343 (__uninitialized_copy_n_fn::operator()): Likewise.
4344 (__uninitialized_move_fn::operator()): Likewise.
4345 (__uninitialized_move_n_fn::operator()): Likewise.
4346 (__uninitialized_destroy_fn::operator()): Use std::move to avoid
4347 attempting to copy __first.
4348 (__uninitialized_destroy_n_fn::operator()): Likewise.
4349 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
4351 * .../specialized_algorithms/uninitialized_copy/constrained.cc:
4353 * .../specialized_algorithms/uninitialized_move/constrained.cc:
4356 * testsuite/util/testsuite_iterators.h (test_range::get_iterator): Make
4357 protected instead of private.
4358 (test_sized_range_sized_sent): New.
4360 * testsuite/util/testsuite_iterators.h (input_iterator_wrapper_nocopy):
4361 New testsuite iterator.
4362 * testsuite/24_iterators/counted_iterator/lwg3389.cc: use it.
4363 * testsuite/24_iterators/move_iterator/lwg3390.cc: Likewise.
4365 * include/bits/ranges_uninitialized.h
4366 (uninitialized_copy_fn::operator()): Pass a reference type as the first
4367 argument to is_nothrow_assignable_v.
4368 (uninitialized_copy_fn::operator()): Likewise.
4369 (uninitialized_move_fn::operator()): Likewise. Return an in_out_result
4370 with the input iterator stripped of its move_iterator.
4371 (uninitialized_move_n_fn::operator()): Likewise.
4372 (uninitialized_fill_fn::operator()): Pass a reference type as the first
4373 argument to is_nothrow_assignable_v.
4374 (uninitialized_fill_n_fn::operator()): Likewise.
4376 2020-03-03 Jonathan Wakely <jwakely@redhat.com>
4379 * include/bits/cpp_type_traits.h (__memcpyable, __memcmpable): New
4380 traits to control when to use memmove and memcmp optimizations.
4381 (__is_nonvolatile_trivially_copyable): New helper trait.
4382 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Do not
4383 use memcmp optimization with volatile data.
4384 * include/bits/ranges_algobase.h (__equal_fn): Use __memcmpable.
4385 (__copy_or_move, __copy_or_move_backward): Use __memcpyable.
4386 * include/bits/stl_algobase.h (__copy_move_a2): Use __memcpyable.
4387 (__copy_move_backward_a2): Likewise.
4388 (__equal_aux1): Use __memcmpable.
4389 (__lexicographical_compare_aux): Do not use memcmp optimization with
4391 * testsuite/25_algorithms/copy/94013.cc: New test.
4392 * testsuite/25_algorithms/copy_backward/94013.cc: New test.
4393 * testsuite/25_algorithms/equal/94013.cc: New test.
4394 * testsuite/25_algorithms/fill/94013.cc: New test.
4395 * testsuite/25_algorithms/lexicographical_compare/94013.cc: New test.
4396 * testsuite/25_algorithms/move/94013.cc: New test.
4397 * testsuite/25_algorithms/move_backward/94013.cc: New test.
4399 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
4400 Avoid redundant iterator comparisons (LWG 3410).
4402 2020-03-02 Jonathan Wakely <jwakely@redhat.com>
4405 * include/bits/stl_algobase.h (__memcmp): Allow pointer types to
4407 * testsuite/25_algorithms/lexicographical_compare/uchar.cc: New test.
4409 * include/std/ranges (__detail::__maybe_empty_t): Rename to
4411 (__adaptor::_RangeAdaptor, join_view, split_view): Use new name.
4413 * include/bits/ranges_algo.h (shift_right): Add 'typename' to
4416 2020-03-01 H.J. Lu <hongjiu.lu@intel.com>
4418 * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated.
4420 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
4422 * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*.
4423 * testsuite/17_intro/headers/c++2011/charset.cc: Likewise.
4424 * testsuite/17_intro/headers/c++2014/charset.cc: Likewise.
4425 * testsuite/17_intro/headers/c++2017/charset.cc: Likewise.
4426 * testsuite/17_intro/headers/c++2020/charset.cc: Likewise.
4428 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
4429 Add libatomic option.
4430 * testsuite/30_threads/jthread/jthread.cc: Likewise.
4432 2020-02-29 François Dumont <fdumont@gcc.gnu.org>
4434 * include/bits/stl_algo.h
4435 (__find_if, __count_if, __is_permutation, std::is_permutation): Move...
4436 * include/bits/stl_algobase.h: ...here.
4437 * include/bits/hashtable_policy.h: Remove <bits/stl_algo.h> include.
4439 2020-02-29 John David Anglin <danglin@gcc.gnu.org>
4441 * testsuite/30_threads/stop_token/stop_callback.cc: Add libatomic
4443 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc:
4445 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: Likewise.
4446 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: Likewise.
4447 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: Likewise.
4448 * testsuite/30_threads/stop_token/stop_source.cc: Likewise.
4449 * testsuite/30_threads/stop_token/stop_source/assign.cc: Likewise.
4450 * testsuite/30_threads/stop_token/stop_token.cc: Likewise.
4451 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc:
4455 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
4457 2020-02-28 Patrick Palka <ppalka@redhat.com>
4460 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
4461 Fix condition for when to use memcmp, making it consistent with the
4462 corresponding condition used in std::lexicographical_compare.
4463 * testsuite/25_algorithms/lexicographical_compare/93972.cc: New test.
4465 * testsuite/26_numerics/headers/numeric/synopsis.cc: Add signatures for
4466 functions introduced in C++11, C++17 and C++2a. Add 'constexpr' to
4467 existing signatures for C++2a.
4469 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
4471 * testsuite/24_iterators/range_operations/advance_debug_neg.cc: Run
4472 test instead of just compiling it.
4474 2020-02-28 Patrick Palka <ppalka@redhat.com>
4476 * include/std/ranges (reverse_view::_S_needs_cached_begin): Set to false
4477 whenever the underlying range models common_range.
4479 * include/std/ranges (__detail::_CachedPosition): New struct.
4480 (views::filter_view::_S_needs_cached_begin): New member variable.
4481 (views::filter_view::_M_cached_begin): New member variable.
4482 (views::filter_view::begin): Use _M_cached_begin to cache its
4484 (views::drop_view::_S_needs_cached_begin): New static member variable.
4485 (views::drop_view::_M_cached_begin): New member variable.
4486 (views::drop_view::begin): Use _M_cached_begin to cache its result
4487 when _S_needs_cached_begin.
4488 (views::drop_while_view::_M_cached_begin): New member variable.
4489 (views::drop_while_view::begin): Use _M_cached_begin to cache its
4491 (views::reverse_view::_S_needs_cached_begin): New static member
4493 (views::reverse_view::_M_cached_begin): New member variable.
4494 (views::reverse_view::begin): Use _M_cached_begin to cache its result
4495 when _S_needs_cached_begin.
4496 * testsuite/std/ranges/adaptors/drop.cc: Augment test to check that
4497 drop_view::begin caches its result.
4498 * testsuite/std/ranges/adaptors/drop_while.cc: Augment test to check
4499 that drop_while_view::begin caches its result.
4500 * testsuite/std/ranges/adaptors/filter.cc: Augment test to check that
4501 filter_view::begin caches its result.
4502 * testsuite/std/ranges/adaptors/reverse.cc: Augment test to check that
4503 reverse_view::begin caches its result.
4505 2020-02-28 Jonathan Wakely <jwakely@redhat.com>
4507 * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for
4508 filesystems that silently truncate timestamps.
4509 * testsuite/experimental/filesystem/operations/last_write_time.cc:
4512 * testsuite/21_strings/basic_string/cons/char/1.cc: Disable
4513 -Wstringop-overflow warnings.
4515 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
4517 * testsuite/lib/libstdc++.exp (v3_target_compile): Add
4518 -fdiagnostics-urls=never to options.
4520 2020-02-27 Patrick Palka <ppalka@redhat.com>
4522 * include/std/ranges (transform_view::_Iterator<_Const>): Befriend
4524 (transform_view::_Sentinel<_Const>): Befriend _Sentinel<!_Const>.
4525 (take_view::_Sentinel<_Const>): Likewise.
4526 (take_while_view::_Sentinel<_Const>): Likewise.
4527 (split_view::_OuterIter<_Const>): Befriend _OuterIter<!_Const>.
4528 * testsuite/std/ranges/adaptors/split.cc: Augment test.
4529 * testsuite/std/ranges/adaptors/take.cc: Augment test.
4530 * testsuite/std/ranges/adaptors/take_while.cc: Augment test.
4531 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
4533 * testsuite/25_algorithms/copy/constrained.cc: Don't assume that the
4534 base() of a vector<>::iterator is a pointer.
4535 * testsuite/25_algorithms/copy_backward/constrained.cc: Likewise.
4536 * testsuite/25_algorithms/move/constrained.cc: Likewise.
4537 * testsuite/25_algorithms/move_backward/constrained.cc: Likewise.
4538 * testsuite/25_algorithms/inplace_merge/constrained.cc: Use foo.data()
4540 * testsuite/25_algorithms/partial_sort/constrained.cc: Likewise.
4541 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: Likewise.
4542 * testsuite/25_algorithms/shuffle/constrained.cc: Likewise.
4543 * testsuite/25_algorithms/sort/constrained.cc: Likewise.
4544 * testsuite/25_algorithms/stable_sort/constrained.cc: Likewise.
4546 2020-02-27 Jonathan Wakely <jwakely@redhat.com>
4548 * include/debug/array (operator<=>): Define for C++20.
4549 * testsuite/23_containers/array/tuple_interface/get_debug_neg.cc:
4550 Adjust dg-error line numbers.
4551 * testsuite/23_containers/array/tuple_interface/
4552 tuple_element_debug_neg.cc: Likewise.
4554 * testsuite/23_containers/span/back_assert_neg.cc: Add #undef before
4555 defining _GLIBCXX_ASSERTIONS.
4556 * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
4557 * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
4558 * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
4559 * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
4560 * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
4561 * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
4562 * testsuite/23_containers/span/subspan_2_assert_neg.cc: Likewise.
4563 * testsuite/23_containers/span/subspan_3_assert_neg.cc: Likewise.
4564 * testsuite/23_containers/span/subspan_4_assert_neg.cc: Likewise.
4565 * testsuite/23_containers/span/subspan_5_assert_neg.cc: Likewise.
4566 * testsuite/23_containers/span/subspan_6_assert_neg.cc: Likewise.
4567 * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
4569 * include/debug/string (__gnu_debug::basic_string::insert): Fix for
4570 C++98 where the member function of the base class returns void.
4572 * testsuite/util/testsuite_iterators.h (forward_iterator_wrapper): Add
4573 equality comparisons that support value-initialized iterators.
4575 * include/bits/boost_concept_check.h (__function_requires): Add
4576 _GLIBCXX14_CONSTEXPR.
4577 * testsuite/25_algorithms/min/concept_checks.cc: New test.
4579 2020-02-26 Patrick Palka <ppalka@redhat.com>
4582 * include/std/ranges (split_view::_InnerIter::operator==): Compare
4583 the operands' _M_i rather than their _M_i.current().
4584 * testsuite/std/ranges/adaptors/split.cc: Augment test.
4586 P1645R1 constexpr for <numeric> algorithms
4587 * include/bits/stl_numeric.h (iota, accumulate, inner_product,
4588 partial_sum, adjacent_difference): Make conditionally constexpr for
4590 * include/std/numeric (__cpp_lib_constexpr_numeric): Define this feature
4592 (reduce, transform_reduce, exclusive_scan, inclusive_scan,
4593 transform_exclusive_scan, transform_inclusive_scan): Make conditionally
4594 constexpr for C++20.
4595 * include/std/version (__cpp_lib_constexpr_numeric): Define.
4596 * testsuite/26_numerics/accumulate/constexpr.cc: New test.
4597 * testsuite/26_numerics/adjacent_difference/constexpr.cc: Likewise.
4598 * testsuite/26_numerics/exclusive_scan/constexpr.cc: Likewise.
4599 * testsuite/26_numerics/inclusive_scan/constexpr.cc: Likewise.
4600 * testsuite/26_numerics/inner_product/constexpr.cc: Likewise.
4601 * testsuite/26_numerics/iota/constexpr.cc: Likewise.
4602 * testsuite/26_numerics/partial_sum/constexpr.cc: Likewise.
4603 * testsuite/26_numerics/reduce/constexpr.cc: Likewise.
4604 * testsuite/26_numerics/transform_exclusive_scan/constexpr.cc: Likewise.
4605 * testsuite/26_numerics/transform_inclusive_scan/constexpr.cc: Likewise.
4606 * testsuite/26_numerics/transform_reduce/constexpr.cc: Likewise.
4608 2020-02-26 Jonathan Wakely <jwakely@redhat.com>
4610 * include/bits/ranges_algo.h (__lexicographical_compare_fn): Declare
4611 variables in smaller scope and avoid calling ranges::distance when we
4612 know they are pointers. Remove statically-unreachable use of
4613 __builtin_unreachable().
4614 * include/bits/stl_algobase.h (__lexicographical_compare::__lc):
4617 * include/std/ranges (__detail::__maybe_empty_t): Define new helper
4619 (__detail::__maybe_const_t): Likewise.
4620 (__adaptor::_RangeAdaptor): Use __maybe_empty_t.
4621 (transform_view, take_view, take_while_view, elements_view): Use
4623 (join_view, split_view): Use both.
4625 2020-02-25 Patrick Palka <ppalka@redhat.com>
4627 LWG 3397 basic_istream_view::iterator should not provide
4629 * include/std/ranges (basic_istream_view:_Iterator::iterator_category):
4631 (basic_istream_view:_Iterator::iterator_concept): ... this.
4632 * testsuite/std/ranges/istream_view.cc: Augment test.
4634 LWG 3325 Constrain return type of transformation function for
4636 * include/std/ranges (transform_view): Constrain the return type of the
4637 transformation function as per LWG 3325.
4638 * testsuite/std/ranges/adaptors/lwg3325_neg.cc: New test.
4640 LWG 3313 join_view::_Iterator::operator-- is incorrectly constrained
4641 * include/std/ranges (join_view::_Iterator::operator--): Require that
4642 range_reference_t<_Base> models common_range.
4643 * testsuite/std/ranges/adaptors/lwg3313_neg.cc: New test.
4645 LWG 3301 transform_view::_Iterator has incorrect iterator_category
4646 * include/std/ranges (transform_view::_Iterator::_S_iter_cat): Adjust
4647 determination of iterator_category as per LWG 3301.
4648 * testsuite/std/ranges/adaptors/transform.cc: Augment test.
4650 LWG 3292 iota_view is under-constrained
4651 * include/std/ranges (iota_view): Require that _Winc models semiregular
4653 * testsuite/std/ranges/iota/lwg3292_neg.cc: New test.
4655 2020-02-25 Jonathan Wakely <jwakely@redhat.com>
4657 * include/bits/ranges_algobase.h (__copy_or_move): Do not use memmove
4658 during constant evaluation. Call __builtin_memmove directly instead of
4660 (__copy_or_move_backward): Likewise.
4661 * include/bits/stl_algobase.h (__memmove): Remove.
4662 (__copy_move<M, true, random_access_iterator_tag>::__copy_m)
4663 (__copy_move_backward<M, true, random_access_iterator_tag>::__copy_m):
4664 Use __builtin_memmove directly instead of __memmove.
4665 (__copy_move_a2): Do not use memmove during constant evaluation.
4666 (__copy_move_backward_a2): Use _IsMove constant to select correct
4667 __copy_move_backward specialization.
4668 * testsuite/25_algorithms/copy_backward/constexpr.cc: Check for copies
4669 begin turned into moves during constant evaluation.
4671 * testsuite/25_algorithms/move_backward/93872.cc: Add test left out of
4675 * include/bits/stl_algobase.h (__memmove): Cast away const before
4676 doing move assignment.
4677 * testsuite/25_algorithms/move/93872.cc: New test.
4678 * testsuite/25_algorithms/move_backward/93872.cc: New test.
4680 2020-02-24 Patrick Palka <ppalka@redhat.com>
4683 * include/bits/ranges_algobase.h (__copy_or_move,
4684 __copy_or_move_backward): Don't inspect the iter_value_t of the output
4685 iterator, instead inspect its iterator_traits directly.
4686 * include/bits/stl_iterator.h (back_insert_iterator::container):
4687 Conditionally initialize.
4688 (back_insert_iterator::difference_type): Conditionally define.
4689 (back_insert_iterator::back_insert_iterator): Conditionally define this
4690 default constructor.
4691 (front_insert_iterator::container): Conditionally initialize.
4692 (front_insert_iterator::difference_type): Conditionally define.
4693 (front_insert_iterator::front_insert_iterator): Conditionally define
4694 this default constructor.
4695 * 24_iterators/back_insert_iterator/pr93884.cc: New test.
4696 * 24_iterators/front_insert_iterator/pr93884.cc: New test.
4698 P0769R2 Add shift to <algorithm>
4699 * include/bits/ranges_algo.h (shift_left, shift_right): New.
4700 * testsuite/25_algorithms/shift_left/1.cc: New test.
4701 * testsuite/25_algorithms/shift_right/1.cc: New test.
4703 2020-02-24 Jonathan Wakely <jwakely@redhat.com>
4705 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
4706 Make noexcept-specifier conditional.
4707 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc: Check
4710 * include/bits/stream_iterator.h (istream_iterator(default_sentinel_t)):
4712 (operator==(istream_iterator, default_sentinel_t)): Add operator.
4713 (ostream_iterator::difference_type): Define to ptrdiff_t for C++20.
4714 * include/bits/streambuf_iterator.h
4715 (istreambuf_iterator(default_sentinel_t)): Add constructor.
4716 (operator==(istreambuf_iterator, default_sentinel_t)): Add operator.
4717 * testsuite/24_iterators/istream_iterator/cons/sentinel.cc:
4719 * testsuite/24_iterators/istream_iterator/sentinel.cc: New test.
4720 * testsuite/24_iterators/istreambuf_iterator/cons/sentinel.cc:
4722 * testsuite/24_iterators/istreambuf_iterator/sentinel.cc: New test.
4724 * include/std/ranges (__deep_const_range, __enable_view_impl): Remove.
4725 (ranges::enable_view): Simplify (LWG 3326).
4726 * include/bits/range_access.h (ranges::enable_view): Declare.
4727 * include/bits/regex.h (__enable_view_impl): Remove partial
4729 * include/bits/stl_multiset.h (__enable_view_impl): Likewise.
4730 * include/bits/stl_set.h (__enable_view_impl): Likewise.
4731 * include/bits/unordered_set.h (__enable_view_impl): Likewise.
4732 * include/debug/multiset.h (__enable_view_impl): Likewise.
4733 * include/debug/set.h (__enable_view_impl): Likewise.
4734 * include/debug/unordered_set (__enable_view_impl): Likewise.
4735 * include/experimental/string_view (ranges::enable_view): Define
4736 partial specialization.
4737 * include/std/span (ranges::enable_view): Likewise.
4738 * include/std/string_view (ranges::enable_view): Likewise.
4739 * testsuite/std/ranges/view.cc: Check satisfaction of updated concept.
4741 2020-02-21 Jonathan Wakely <jwakely@redhat.com>
4743 * include/std/optional (operator<=>(optional<T>, optional<U>))
4744 (operator<=>(optional<T>, nullopt), operator<=>(optional<T>, U)):
4746 * include/std/tuple (__tuple_cmp): New helper function for <=>.
4747 (operator<=>(tuple<T...>, tuple<U>...)): Define for C++20.
4748 * include/std/variant (operator<=>(variant<T...>, variant<T...>))
4749 (operator<=>(monostate, monostate)): Define for C++20.
4750 * testsuite/20_util/optional/relops/three_way.cc: New test.
4751 * testsuite/20_util/tuple/comparison_operators/three_way.cc: New test.
4752 * testsuite/20_util/variant/89851.cc: Move to ...
4753 * testsuite/20_util/variant/relops/89851.cc: ... here.
4754 * testsuite/20_util/variant/90008.cc: Move to ...
4755 * testsuite/20_util/variant/relops/90008.cc: ... here.
4756 * testsuite/20_util/variant/relops/three_way.cc: New test.
4758 2020-02-20 Patrick Palka <ppalka@redhat.com>
4760 * include/std/ranges (views::__adaptor::__maybe_refwrap): New utility
4762 (views::__adaptor::_RangeAdaptor::operator()): Add comments. Use
4763 __maybe_refwrap to capture lvalue references by reference, and then use
4764 unwrap_reference_t to forward the by-reference captures as references.
4765 * testsuite/std/ranges/adaptors/split.cc: Augment test.
4766 * testsuite/std/ranges/adaptors/split_neg.cc: New test.
4768 * include/std/ranges (iota_view): Forward declare _Sentinel.
4769 (iota_view::_Iterator): Befriend _Sentinel.
4770 (iota_view::_Sentinel::_M_equal): New member function.
4771 (iota_view::_Sentinel::operator==): Use it.
4772 (views::_Iota::operator()): Forward __f using the correct type.
4773 * testsuite/std/ranges/access/ssize.cc (test06): Don't call views::iota
4774 with integers of different signedness, to appease iota_view's deduction
4776 * testsuite/std/ranges/iota/iota_view.cc: Augment test.
4778 2020-02-20 Jonathan Wakely <jwakely@redhat.com>
4780 * include/bits/range_access.h (ranges::begin): Reject array of
4782 (ranges::end, ranges::size): Require arrays to be bounded.
4783 (ranges::data): Require lvalue or borrowed_range.
4784 (ranges::iterator_t): Remove constraint.
4785 * testsuite/std/ranges/access/begin.cc: Do not check array of
4787 * testsuite/std/ranges/access/begin_neg.cc: New test.
4788 * testsuite/std/ranges/access/end_neg.cc: Adjust expected error.
4789 * testsuite/std/ranges/access/size_neg.cc: Adjust expected error.
4790 * testsuite/std/ranges/access/ssize.cc: Do not check array of
4793 * include/std/system_error (error_category::operator<=>)
4794 (operator<=>(const error_code&, const error_code&))
4795 (operator<=>(const error_condition&, const error_condition&)): Define
4797 * testsuite/19_diagnostics/error_category/operators/less.cc: New test.
4798 * testsuite/19_diagnostics/error_category/operators/three_way.cc: New
4800 * testsuite/19_diagnostics/error_code/operators/equal.cc: Remove
4802 * testsuite/19_diagnostics/error_code/operators/less.cc: New test.
4803 * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Remove
4805 * testsuite/19_diagnostics/error_code/operators/three_way.cc: New test.
4806 * testsuite/19_diagnostics/error_condition/operators/equal.cc: Remove
4808 * testsuite/19_diagnostics/error_condition/operators/less.cc: New test.
4809 * testsuite/19_diagnostics/error_condition/operators/not_equal.cc:
4810 Remove incorrect comment.
4811 * testsuite/19_diagnostics/error_condition/operators/three_way.cc: New
4814 * libsupc++/typeinfo (type_info::operator!=): Remove for C++20.
4816 * include/std/thread (thread::id::operator<=>): Define for C++20.
4817 * testsuite/30_threads/thread/id/70294.cc: Do not take addresses of
4818 functions in namespace std.
4819 * testsuite/30_threads/thread/id/operators_c++20.cc: New test.
4821 2020-02-19 Patrick Palka <ppalka@redhat.com>
4823 * testsuite/std/ranges/adaptors/split.cc (test03): Don't include the
4824 null terminator of the underlying string as part of the test_range.
4825 (main): Call test03.
4827 2020-02-19 Jonathan Wakely <jwakely@redhat.com>
4829 * include/bits/stl_iterator.h (common_iterator): Add copyable<I>
4830 requirement (LWG 3385).
4831 * testsuite/24_iterators/headers/iterator/synopsis_c++20.cc: Adjust
4832 expected declaration.
4834 * include/std/ranges (take_while_view, drop_view, drop_while_view)
4835 (elements_view:_Iterator): Initialize data members (LWG 3364).
4837 * libsupc++/compare (three_way_comparable): Remove always-false check
4838 that should have been removed with weak_equality (P1959R0).
4839 (three_way_comparable_with): Likewise. Reorder requirements (LWG 3360).
4841 * include/std/concepts (__detail::__partially_ordered_with): Move here
4843 (totally_ordered, totally_ordered_with): Use __partially_ordered_with
4844 to simplify definition (LWG 3331).
4845 * libsupc++/compare (__detail::__partially_ordered_with): Move to
4848 * include/std/concepts (totally_ordered_with): Remove redundant
4849 requirement (LWG 3329).
4851 * include/std/ranges (__detail::__convertible_to_non_slicing): New
4853 (__detail::__pair_like_convertible_to): Remove.
4854 (__detail::__pair_like_convertible_from): Add requirements for
4855 non-slicing conversions.
4856 (subrange): Constrain constructors with __convertible_to_non_slicing.
4857 Remove constructors from pair-like types. Add new deduction guide.
4858 * testsuite/std/ranges/subrange/lwg3282_neg.cc: New test.
4860 * include/bits/iterator_concepts.h (iter_move): Add declaration to
4861 prevent unqualified lookup finding a suitable declaration (LWG 3247).
4863 * include/std/memory_resource (polymorphic_allocator::allocate)
4864 (polymorphic_allocator::allocate_object): Change type of exception to
4865 bad_array_new_length (LWG 3237).
4866 * testsuite/20_util/polymorphic_allocator/lwg3237.cc: New test.
4868 * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348).
4869 * include/std/version (__cpp_lib_unwrap_ref): Likewise.
4870 * testsuite/20_util/unwrap_reference/1.cc: Check macro.
4871 * testsuite/20_util/unwrap_reference/3.cc: New test.
4873 * include/std/numeric (midpoint(T8, T*)): Do not check for complete
4874 type during overload resolution, use static assert instead (LWG 3200).
4875 * testsuite/26_numerics/midpoint/pointer.cc: Do not test with
4877 * testsuite/26_numerics/midpoint/pointer_neg.cc: New test.
4879 * include/std/span (span(T (&)[N])): Use non-deduced context to
4880 prevent first parameter from interfering with class template argument
4881 deduction (LWG 3369).
4882 * testsuite/23_containers/span/deduction.cc: Add missing 'const'.
4883 * testsuite/23_containers/span/lwg3255.cc: Check for construction from
4886 * include/std/span (span::const_iterator, span::const_reverse_iterator)
4887 (span::cbegin(), span::cend(), span::crbegin(), span::crend()):
4889 * testsuite/23_containers/span/everything.cc: Replace uses of cbegin
4891 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc:
4893 * testsuite/20_util/specialized_algorithms/uninitialized_copy/
4894 constrained.cc: Likewise.
4895 * testsuite/20_util/specialized_algorithms/
4896 uninitialized_default_construct/constrained.cc: Likewise.
4897 * testsuite/20_util/specialized_algorithms/uninitialized_fill/
4898 constrained.cc: Likewise.
4899 * testsuite/20_util/specialized_algorithms/uninitialized_move/
4900 constrained.cc: Likewise.
4901 * testsuite/20_util/specialized_algorithms/
4902 uninitialized_value_construct/constrained.cc: Likewise.
4904 * include/bits/range_access.h (range_size_t): Define alias template.
4905 * include/std/ranges (all_view): Rename to views::all_t (LWG 3335).
4906 * testsuite/std/ranges/adaptors/filter.cc: Adjust to new name.
4908 * include/std/ranges (filter_view, transform_view, take_view)
4909 (join_view, split_view, reverse_view): Remove commented-out converting
4910 constructors (LWG 3280).
4912 * include/std/memory (uninitialized_construct_using_allocator): Use
4913 std::construct_at (LWG 3321).
4915 * include/std/memory_resource (polymorphic_allocator::allocate_bytes)
4916 (polymorphic_allocator::allocate_object)
4917 (polymorphic_allocator::new_object): Add nodiscard attribute (LWG3304).
4919 LWG 3379. "safe" in several library names is misleading
4920 * include/bits/range_access.h (enable_safe_range): Rename to
4921 enable_borrowed_range.
4922 (__detail::__maybe_safe_range): Rename to __maybe_borrowed_range.
4923 (safe_range): Rename to borrowed_range.
4924 * include/bits/ranges_algo.h: Adjust to use new names.
4925 * include/bits/ranges_algobase.h: Likewise.
4926 * include/bits/ranges_uninitialized.h: Likewise.
4927 * include/std/ranges: Likewise.
4928 (safe_iterator_t): Rename to borrowed_iterator_t.
4929 (safe_subrange_t): Rename to borrowed_subrange_t.
4930 * include/std/span: Adjust to use new names.
4931 * include/std/string_view: Likewise.
4932 * include/experimental/string_view: Likewise.
4933 * testsuite/std/ranges/access/begin.cc: Likewise.
4934 * testsuite/std/ranges/access/cbegin.cc: Likewise.
4935 * testsuite/std/ranges/access/cdata.cc: Likewise.
4936 * testsuite/std/ranges/access/cend.cc: Likewise.
4937 * testsuite/std/ranges/access/crbegin.cc: Likewise.
4938 * testsuite/std/ranges/access/crend.cc: Likewise.
4939 * testsuite/std/ranges/access/data.cc: Likewise.
4940 * testsuite/std/ranges/access/end.cc: Likewise.
4941 * testsuite/std/ranges/access/rbegin.cc: Likewise.
4942 * testsuite/std/ranges/access/rend.cc: Likewise.
4943 * testsuite/std/ranges/safe_range.cc: Likewise.
4944 * testsuite/std/ranges/safe_range_types.cc: Likewise.
4945 * testsuite/util/testsuite_iterators.h: Likewise.
4947 * include/std/ranges (tuple_element<0, const subrange<I, S, K>>)
4948 (tuple_element<1, const subrange<I, S, K>>): Add partial
4949 specializations (LWG 3398).
4950 * testsuite/std/ranges/subrange/tuple_like.cc: New test.
4952 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
4953 (__adjacent_find_fn, __remove_if_fn, __remove_copy_if_fn)
4954 (__unique_fn, __unique_copy_fn): Remove redundant conversions to bool.
4956 2020-02-18 Patrick Palka <ppalka@redhat.com>
4958 P1983R0 Wording for GB301, US296, US292, US291, and US283
4959 * include/std/ranges (filter_view::pred): New member function.
4960 (join_view::_Iterator::_Iterator): Remove now-redundant comment since
4961 P1983R0 fixes the highlighted issue in the same way.
4962 (join_view::_Iterator<_Const>): Add friend
4963 join_view::_Iterator<!_Const>.
4964 (join_view::_M_inner): Remove mutable specifier, effectively reverting
4965 the proposed wording changes of P3278.
4966 (join_view::begin): Refine the condition for when to return a const
4968 (split_view::_OuterIter::_OuterIter): Adjust constraints.
4969 * testsuite/std/ranges/adaptors/filter.cc: Test that filter_view::pred
4972 2020-02-18 Jonathan Wakely <jwakely@redhat.com>
4975 * include/std/ranges (_RangeAdaptor): Add deduction guide.
4976 (filter_view::_Iterator): Add alias _Vp_iter and use in place of
4978 (filter_view::_Iterator::_S_iter_cat()): Add 'typename'.
4979 (transform_view::_Iterator): Add alias _Base_iter and use in place of
4981 (transform_view::_Iterator::_S_iter_cat()): Add 'typename'.
4982 (join_view::_Iterator): Add _Outer_iter and _Inner_iter aliases.
4983 (join_view::_Iterator::_S_iter_cat()): Add 'typename'.
4984 (split_view::_InnerIter::_S_iter_cat()): Likewise.
4986 * testsuite/20_util/integer_comparisons/equal.cc: Fix invalid
4987 assumption that long is wider than int.
4988 * testsuite/20_util/integer_comparisons/greater_equal.cc: Likewise.
4989 * testsuite/20_util/integer_comparisons/less.cc: Likewise.
4990 * testsuite/20_util/integer_comparisons/less_equal.cc: Likewise.
4991 * testsuite/20_util/integer_comparisons/not_equal.cc: Likewise.
4993 P1976R2 Fixed-size span construction from dynamic range
4994 * include/std/span (__cpp_lib_span): Update value.
4995 (span(It, size_type), span(It, End)): Make conditionally explicit. Add
4997 (span(R&&), span(const span<OType, OExtent>&)): Likewise and relax
4999 (span::first<Count>(), span::last<Count>()): Use explicit type in
5001 (as_bytes, as_writable_bytes): Likewise.
5002 * include/std/version (__cpp_lib_span): Update value.
5003 * testsuite/23_containers/span/1.cc: Check new value.
5004 * testsuite/23_containers/span/2.cc: Check new value.
5005 * testsuite/23_containers/span/explicit.cc: New test.
5007 * include/std/span (span::__is_compatible_array): Simplify alias
5008 template by using requires-clause.
5009 (span::__is_compatible_ref): New alias template for constraining
5011 (span::__is_compatible_iterator, span::__is_compatible_range): Remove.
5012 (span(It, size_type), span(It, End)): Use __is_compatible_ref.
5013 (span(T(&)[N], span(array<T, N>&), span(const array<T, N>&)): Remove
5014 redundant parentheses.
5015 (span(R&&)): Add missing constraints.
5017 * include/std/span (span): Reorder members and rename template
5018 parameters to match declarations in the C++2a working paper.
5020 P2116R0 Remove tuple-like protocol support from fixed-extent span
5021 * include/std/span (get, tuple_size, tuple_element): Remove.
5022 * testsuite/23_containers/span/everything.cc: Remove checks for
5024 * testsuite/23_containers/span/get_neg.cc: Remove.
5025 * testsuite/23_containers/span/tuple_element_dynamic_neg.cc: Remove.
5026 * testsuite/23_containers/span/tuple_element_oob_neg.cc: Remove.
5027 * testsuite/23_containers/span/tuple_size_neg.cc: Remove.
5029 2020-02-17 Patrick Palka <ppalka@redhat.com>
5031 P2106R0 Alternative wording for GB315 and GB316
5032 * include/bits/ranges_algo.h (in_fun_result): New.
5033 (for_each_result, for_each_n_result): Change into an alias of
5035 (in_in_result): New.
5036 (mismatch_result): Change into an alias of in_in_result.
5037 (copy_if_result): Change into an alias of in_out_result.
5038 (swap_ranges_result): Change into an alias of in_in_result.
5039 (unary_transform_result): Change into an alias of in_out_result.
5040 (in_in_out_result): New.
5041 (binary_transform_result): Change into an alias of in_in_out_result.
5042 (replace_copy_result, replace_copy_if_result, remove_copy_if_result,
5043 remove_copy_result, unique_copy_result, reverse_copy_result,
5044 rotate_copy_result, partial_sort_copy_result): Change into an alias of
5046 (in_out_out_result): New.
5047 (partition_copy_result, merge_result): Change into an alias of
5049 (set_union_result, set_intersection_result): Change into an alias of
5051 (set_difference_result): Change into an alias of in_out_result.
5052 (set_symmetric_difference): Change into an alias of in_in_out_result.
5053 (min_max_result): New.
5054 (minmax_result, minmax_element_result): Change into an alias of
5056 (in_found_result): New.
5057 (next_permutation_result, prev_permutation_result): Change into an alias
5059 (__next_permutation_fn::operator(), __prev_permutation_fn::operator()):
5060 Adjust following changes to next_permutation_result and
5061 prev_permutation_result.
5062 * include/bits/ranges_algobase.h (in_out_result): New.
5063 (copy_result, move_result, move_backward_result, copy_backward_result,
5064 copy_n_result): Change into an alias of in_out_result.
5065 * include/bits/ranges_uninitialized.h (uninitialized_copy_result,
5066 uninitialized_copy_n_result, uninitialized_move_result,
5067 uninitialized_move_n_result): Likewise.
5068 * testsuite/25_algorithms/next_permutation/constrained.cc: Adjust uses of
5069 structured bindings.
5070 * testsuite/25_algorithms/prev_permutation/constrained.cc: Likewise.
5072 P1243R4 Rangify new algorithms
5073 * include/bits/ranges_algo.h (for_each_n_result, __for_each_n_fn,
5074 for_each_n, __sample_fn, sample, __clamp_fn, clamp): New.
5075 * testsuite/25_algorithms/clamp/constrained.cc: New test.
5076 * testsuite/25_algorithms/for_each/constrained.cc: Augment test.
5077 * testsuite/25_algorithms/sample/constrained.cc: New test.
5079 2020-02-17 Jonathan Wakely <jwakely@redhat.com>
5081 P1964R2 Wording for boolean-testable
5082 * include/bits/ranges_algo.h (__find_fn, __find_first_of_fn)
5083 (__adjacent_find_fn): Cast result of predicate to bool.
5084 * include/std/concepts (__boolean): Remove.
5085 (__detail::__boolean_testable_impl, __detail::__boolean_testable): Add
5086 new helper concepts.
5087 (__detail::__weakly_eq_cmp_with, totally_ordered, totally_ordered_with)
5088 (predicate): Use __boolean_testable instead of boolean.
5089 * libsupc++/compare (__detail::__partially_ordered, _Synth3way):
5092 P1970R2 Consistency for size() functions: Add ranges::ssize
5093 * include/bits/range_access.h (_SSize, ssize): Define for C++20.
5094 * testsuite/std/ranges/access/ssize.cc: New test.
5096 P1956R1 On the names of low-level bit manipulation functions
5097 * include/bits/hashtable_policy.h: Update comment.
5098 * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename.
5099 (ispow2, ceil2, floor2, log2p1): Likewise.
5100 (__cpp_lib_int_pow2): Add feature test macro.
5101 * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1.
5102 * include/std/memory (assume_aligned): Adjust use of ispow2.
5103 * include/std/version (__cpp_lib_int_pow2): Add.
5104 * libsupc++/new_opa.cc: Adjust use of __ispow2.
5105 * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1.
5106 * testsuite/17_intro/freestanding.cc: Adjust use of ispow2.
5107 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ...
5108 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here.
5109 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ...
5110 * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here.
5111 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ...
5112 * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here.
5113 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ...
5114 * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here.
5115 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ...
5116 * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here.
5118 * include/std/charconv: Add comment.
5120 PR libstdc++/92546 (partial)
5121 * include/bits/random.h (uniform_random_bit_generator): Move definition
5122 to <bits/uniform_int_dist.h>.
5123 * include/bits/ranges_algo.h: Include <bits/uniform_int_dist.h> instead
5125 * include/bits/ranges_algobase.h: Do not include <cmath>.
5126 * include/bits/uniform_int_dist.h (uniform_random_bit_generator):
5128 * include/std/ranges: Do not include <limits>.
5129 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
5131 PR libstdc++/92546 (partial)
5132 * include/Makefile.am: Add new header.
5133 * include/Makefile.in: Regenerate.
5134 * include/bits/int_limits.h: New header.
5135 * include/bits/parse_numbers.h (__select_int::_Select_int): Replace
5136 numeric_limits with __detail::__int_limits.
5137 * include/std/bit (__rotl, __rotr, __countl_zero, __countl_one)
5138 (__countr_zero, __countr_one, __popcount, __ceil2, __floor2, __log2p1):
5140 * include/std/charconv (__to_chars_8, __from_chars_binary)
5141 (__from_chars_alpha_to_num, from_chars): Likewise.
5142 * include/std/memory_resource (polymorphic_allocator::allocate)
5143 (polymorphic_allocator::allocate_object): Likewise.
5144 * include/std/string_view (basic_string_view::_S_compare): Likewise.
5145 * include/std/utility (in_range): Likewise.
5146 * testsuite/20_util/integer_comparisons/in_range_neg.cc: Adjust for
5147 extra error about incomplete type __int_limits<bool>.
5148 * testsuite/26_numerics/bit/bit.count/countl_one.cc: Include <limits>.
5149 * testsuite/26_numerics/bit/bit.count/countl_zero.cc: Likewise.
5150 * testsuite/26_numerics/bit/bit.count/countr_one.cc: Likewise.
5151 * testsuite/26_numerics/bit/bit.count/countr_zero.cc: Likewise.
5152 * testsuite/26_numerics/bit/bit.count/popcount.cc: Likewise.
5153 * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Likewise.
5154 * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Likewise.
5155 * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise.
5156 * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise.
5157 * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise.
5158 * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Likewise.
5159 * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Likewise.
5161 * python/libstdcxx/v6/printers.py (StdCmpCatPrinter.to_string): Update
5162 value for partial_ordering::unordered.
5164 * include/bits/iterator_concepts.h (indirectly_copyable_storable): Add
5165 const-qualified expression variations.
5166 * include/std/concepts (copyable): Likewise.
5168 * include/std/type_traits (__is_standard_integer): New helper trait.
5169 * include/std/utility (cmp_equal, cmp_not_equal, cmp_less, cmp_greater)
5170 (cmp_less_equal, cmp_greater_equal, in_range): Define for C++20.
5171 * include/std/version (__cpp_lib_integer_comparison_functions): Define.
5172 * testsuite/20_util/integer_comparisons/1.cc: New test.
5173 * testsuite/20_util/integer_comparisons/2.cc: New test.
5174 * testsuite/20_util/integer_comparisons/equal.cc: New test.
5175 * testsuite/20_util/integer_comparisons/equal_neg.cc: New test.
5176 * testsuite/20_util/integer_comparisons/greater_equal.cc: New test.
5177 * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: New test.
5178 * testsuite/20_util/integer_comparisons/greater_neg.cc: New test.
5179 * testsuite/20_util/integer_comparisons/in_range.cc: New test.
5180 * testsuite/20_util/integer_comparisons/in_range_neg.cc: New test.
5181 * testsuite/20_util/integer_comparisons/less.cc: New test.
5182 * testsuite/20_util/integer_comparisons/less_equal.cc: New test.
5183 * testsuite/20_util/integer_comparisons/less_equal_neg.cc: New test.
5184 * testsuite/20_util/integer_comparisons/less_neg.cc: New test.
5185 * testsuite/20_util/integer_comparisons/not_equal.cc: New test.
5186 * testsuite/20_util/integer_comparisons/not_equal_neg.cc: New test.
5188 2020-02-16 Patrick Palka <ppalka@redhat.com>
5190 * include/bits/ranges_algo.h (__lexicographical_compare_fn::operator()):
5191 Move code after an early exit constexpr if to under an else branch.
5192 * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise.
5194 2020-02-15 Patrick Palka <ppalka@redhat.com>
5196 * include/bits/ranges_algo.h: Adjust whitespace and formatting.
5197 * include/bits/ranges_algobase.h: Likewise.
5198 * include/bits/ranges_uninitialized.h: Likewise.
5200 * include/bits/ranges_algo.h: (adjacent_find, all_of, any_of,
5201 binary_search, copy_if, count, count_if, equal_range, find, find_end,
5202 find_first_of, find_if, find_if_not, for_each, generate, generate_n,
5203 includes, inplace_merge, is_heap, is_heap_until, is_partitioned,
5204 is_permutation, is_sorted, is_sorted_until, lexicographical_compare,
5205 lower_bound, make_heap, max, max_element, merge, min, min_element,
5206 minmax, minmax_element, mismatch, next_permutation, none_of,
5207 nth_element, partial_sort, partial_sort_copy, partition, partition_copy,
5208 partition_point, pop_heap, prev_permutation, push_heap, remove,
5209 remove_copy, remove_copy_if, remove_if, replace, replace_copy,
5210 replace_copy_if, replace_if, reverse, reverse_copy, rotate, rotate_copy,
5211 search, search_n, set_difference, set_intersection,
5212 set_symmetric_difference, set_union, shuffle, sort, sort_heap,
5213 stable_partition, stable_sort, swap_ranges, transform, unique,
5214 unique_copy, upper_bound): Convert into function objects.
5215 * include/bits/ranges_algobase.h: (equal, copy, move, copy_n, fill_n,
5216 fill, move_backward, copy_backward): Likewise.
5217 * include/bits/ranges_uninitialized.h (uninitialized_default_construct,
5218 uninitialized_default_construct_n, uninitialized_value_construct,
5219 uninitialized_value_construct_n, uninitialized_copy,
5220 uninitialized_copy_n, uninitialized_move, uninitialized_move_n,
5221 uninitialized_fill, uninitialized_fill_n, construct_at, destroy_at,
5222 destroy, destroy_n): Likewise.
5224 * include/bits/ranges_algo.h (ranges::__find_end): Fold into ...
5225 (ranges::find_end): ... here.
5226 (ranges::__lexicographical_compare): Fold into ...
5227 (ranges::lexicographical_compare): ... here.
5228 * include/bits/ranges_algobase.h (ranges::__equal): Fold into ...
5229 (ranges::equal): ... here.
5231 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
5233 * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L.
5234 * include/std/deque: Likewise.
5235 * include/std/forward_list: Likewise.
5236 * include/std/list: Likewise.
5237 * include/std/string: Likewise.
5238 * include/std/vector: Likewise.
5239 * include/std/version: Likewise.
5240 * testsuite/23_containers/deque/erasure.cc: Test for new value.
5241 * testsuite/23_containers/forward_list/erasure.cc: Likewise.
5242 * testsuite/23_containers/list/erasure.cc: Likewise.
5243 * testsuite/23_containers/map/erasure.cc: Likewise.
5244 * testsuite/23_containers/set/erasure.cc: Likewise.
5245 * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
5246 * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
5247 * testsuite/23_containers/vector/erasure.cc: Likewise.
5249 2020-02-15 Jonathan Wakely <jwakely@redhat.com>
5251 * include/bits/random.h (uniform_random_bit_generator): Require min()
5252 and max() to be constant expressions and min() to be less than max().
5253 * testsuite/26_numerics/random/concept.cc: Check additional cases.
5254 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno.
5256 2020-02-13 Patrick Palka <ppalka@redhat.com>
5258 * include/Makefile.am: Add <bits/ranges_uninitialized.h>.
5259 * include/Makefile.in: Regenerate.
5260 * include/bits/ranges_uninitialized.h: New header.
5261 * include/std/memory: Include it.
5262 * testsuite/20_util/specialized_algorithms/destroy/constrained.cc: New
5264 * .../uninitialized_copy/constrained.cc: New test.
5265 * .../uninitialized_default_construct/constrained.cc: New test.
5266 * .../uninitialized_fill/constrained.cc: New test.
5267 * .../uninitialized_move/constrained.cc: New test.
5268 * .../uninitialized_value_construct/constrained.cc: New test.
5270 * include/Makefile.am: Add bits/ranges_algobase.h
5271 * include/Makefile.in: Regenerate.
5272 * bits/ranges_algo.h: Include <bits/ranges_algobase.h> and refactor
5274 (__detail::__is_normal_iterator, __detail::is_reverse_iterator,
5275 __detail::__is_move_iterator, copy_result, move_result,
5276 __equal, equal, copy_result, move_result, move_backward_result,
5277 copy_backward_result, __copy_or_move_backward, __copy_or_move, copy,
5278 move, copy_backward, move_backward, copy_n_result, copy_n, fill_n,
5279 fill): Split out into ...
5280 * bits/range_algobase.h: ... this new header.
5282 2020-02-12 Patrick Palka <ppalka@redhat.com>
5284 LWG 3389 and LWG 3390
5285 * include/bits/stl_iterator.h (move_move_iterator): Use std::move when
5286 constructing the move_iterator with __i.
5287 (counted_iterator::counted_iterator): Use std::move when initializing
5289 * testsuite/24_iterators/counted_iterator/lwg3389.cc: New test.
5290 * testsuite/24_iterators/move_iterator/lwg3390.cc: New test.
5292 2020-02-12 Sandra Loosemore <sandra@codesourcery.com>
5297 * configure: Regenerated.
5299 2020-02-12 François Dumont <fdumont@gcc.gnu.org>
5301 * include/bits/hashtable.h
5302 (_Hashtable<>(_Hashtable&&, std::allocator_type&)): Add
5303 missing std namespace qualification to forward call.
5305 2020-02-09 Jonathan Wakely <jwakely@redhat.com>
5307 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Fix
5309 * testsuite/20_util/function_objects/range.cmp/less.ccL Likewise.
5311 * include/std/ranges: Fix non-ASCII characters in comment.
5313 * include/bits/range_cmp.h (__detail::__eq_builtin_ptr_cmp): Require
5314 equality comparison to be valid and return bool.
5315 (__detail::__less_builtin_ptr_cmp): Likewise for less-than comparison.
5316 * testsuite/20_util/function_objects/range.cmp/equal_to.cc: Check
5317 type with ambiguous conversion to fundamental types.
5318 * testsuite/20_util/function_objects/range.cmp/less.cc: Likewise.
5320 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
5322 * include/bits/iterator_concepts.h (iter_difference_t, iter_value_t):
5324 (readable_traits): Rename to indirectly_readable_traits.
5325 (readable): Rename to indirectly_readable.
5326 (writable): Rename to indirectly_writable.
5327 (__detail::__iter_exchange_move): Do not use remove_reference_t.
5328 (indirectly_swappable): Adjust requires expression parameter types.
5330 * include/bits/ranges_algo.h (ranges::transform, ranges::replace)
5331 (ranges::replace_if, ranges::generate_n, ranges::generate)
5332 (ranges::remove): Use new name for writable.
5333 * include/bits/stl_iterator.h (__detail::__common_iter_has_arrow):
5334 Use new name for readable.
5335 * include/ext/pointer.h (readable_traits<_Pointer_adapter<P>>): Use
5336 new name for readable_traits.
5337 * testsuite/24_iterators/associated_types/readable.traits.cc: Likewise.
5338 * testsuite/24_iterators/indirect_callable/projected.cc: Adjust for
5339 new definition of indirectly_readable.
5341 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Change
5342 to take parameters of common_iterator, instead of the common_iterator
5343 type itself. Fix argument for __common_iter_has_arrow constraint.
5344 (iterator_traits<common_iterator<I, S>>::pointer): Adjust.
5346 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
5348 * include/std/ranges (iota_view): Add braces to prevent -Wempty-body
5350 (basic_istream_view::_Iterator::operator++()): Add missing return.
5352 2020-02-07 Patrick Palka <ppalka@redhat.com>
5354 * include/bits/ranges_algo.h: Remove extraneous &&.
5356 * include/std/ranges (ranges::__detail::__stream_extractable,
5357 ranges::basic_istream_view, ranges::istream_view): Define.
5358 * testsuite/std/ranges/istream_view: New test.
5360 Implement C++20 range adaptors
5361 * include/std/ranges: Include <bits/refwrap.h> and <tuple>.
5362 (subrange::_S_store_size): Mark as const instead of constexpr to
5363 avoid what seems to be a bug in GCC.
5364 (__detail::__box): Give it defaulted copy and move constructors.
5365 (ranges::views::_Single::operator()): Mark constexpr.
5366 (ranges::views::_Iota::operator()): Mark constexpr.
5367 (__detail::Empty): Define.
5368 (ranges::views::__closure::_RangeAdaptor,
5369 ranges::views::__closure::_RangeAdaptorClosure, ref_view, all_view,
5370 ranges::views::all, ranges::__detail::find_if,
5371 ranges::__detail::find_if_not, ranges::__detail::mismatch,
5372 ranges::detail::min, filter_view, ranges::views::filter, transform_view,
5373 ranges::views::transform, take_view, ranges::views::take,
5374 take_while_view, ranges::views::take_while, drop_view,
5375 ranges::views::drop, join_view, ranges::views::join,
5376 __detail::require_constant, __detail::tiny_range, split_view,
5377 ranges::views::split, ranges::views::_Counted, ranges::views::counted,
5378 common_view, ranges::views::common, reverse_view,
5379 ranges::views::reverse,
5380 ranges::views::__detail::__is_reversible_subrange,
5381 ranges::views::__detail::__is_reverse_view, reverse_view,
5382 ranges::views::reverse, __detail::__has_tuple_element, elements_view,
5383 ranges::views::elements, ranges::views::keys, ranges::views::values):
5385 (views): Alias for ranges::views.
5386 (tuple_size<ranges::subrange<>>, tuple_element<0, ranges::subrange>,
5387 tuple_element<1, ranges::subrange>): New partial specializations.
5388 * testsuite/std/ranges/adaptors/all.cc: New test.
5389 * testsuite/std/ranges/adaptors/common.cc: Likewise.
5390 * testsuite/std/ranges/adaptors/counted.cc: Likewise.
5391 * testsuite/std/ranges/adaptors/drop.cc: Likewise.
5392 * testsuite/std/ranges/adaptors/drop_while.cc: Likewise.
5393 * testsuite/std/ranges/adaptors/elements.cc: Likewise.
5394 * testsuite/std/ranges/adaptors/filter.cc: Likewise.
5395 * testsuite/std/ranges/adaptors/join.cc: Likewise.
5396 * testsuite/std/ranges/adaptors/reverse.cc: Likewise.
5397 * testsuite/std/ranges/adaptors/split.cc: Likewise.
5398 * testsuite/std/ranges/adaptors/take.cc: Likewise.
5399 * testsuite/std/ranges/adaptors/take_while.cc: Likewise.
5400 * testsuite/std/ranges/adaptors/transform.cc: Likewise.
5402 2020-02-07 Jonathan Wakely <jwakely@redhat.com>
5404 * libsupc++/compare (__cmp_cat::type): Define typedef for underlying
5405 type of enumerations and comparison category types.
5406 (__cmp_cat::_Ord, __cmp_cat::_Ncmp): Add underlying type.
5407 (__cmp_cat::_Ncmp::unordered): Change value to 2.
5408 (partial_ordering::_M_value, weak_ordering::_M_value)
5409 (strong_ordering::_M_value): Change type to __cmp_cat::type.
5410 (partial_ordering::_M_is_ordered): Remove data member.
5411 (partial_ordering): Use second bit of _M_value for unordered. Adjust
5412 comparison operators.
5413 (weak_ordering::operator partial_ordering): Simplify to remove
5415 (operator<=>(unspecified, weak_ordering)): Likewise.
5416 (strong_ordering::operator partial_ordering): Likewise.
5417 (strong_ordering::operator weak_ordering): Likewise.
5418 (operator<=>(unspecified, strong_ordering)): Likewise.
5419 * testsuite/18_support/comparisons/categories/partialord.cc: New test.
5420 * testsuite/18_support/comparisons/categories/strongord.cc: New test.
5421 * testsuite/18_support/comparisons/categories/weakord.cc: New test.
5423 * include/std/ranges (iota_view::_Iterator): Fix typo in name of
5424 __cpp_lib_three_way_comparison macro and use deduced return type for
5426 * testsuite/std/ranges/iota/iterator.cc: New test.
5428 2020-02-07 Patrick Palka <ppalka@redhat.com>
5429 Jonathan Wakely <jwakely@redhat.com>
5431 Implement C++20 constrained algorithms
5432 * include/Makefile.am: Add new header.
5433 * include/Makefile.in: Regenerate.
5434 * include/std/algorithm: Include <bits/ranges_algo.h>.
5435 * include/bits/ranges_algo.h: New file.
5436 * testsuite/25_algorithms/adjacent_find/constrained.cc: New test.
5437 * testsuite/25_algorithms/all_of/constrained.cc: New test.
5438 * testsuite/25_algorithms/any_of/constrained.cc: New test.
5439 * testsuite/25_algorithms/binary_search/constrained.cc: New test.
5440 * testsuite/25_algorithms/copy/constrained.cc: New test.
5441 * testsuite/25_algorithms/copy_backward/constrained.cc: New test.
5442 * testsuite/25_algorithms/copy_if/constrained.cc: New test.
5443 * testsuite/25_algorithms/copy_n/constrained.cc: New test.
5444 * testsuite/25_algorithms/count/constrained.cc: New test.
5445 * testsuite/25_algorithms/count_if/constrained.cc: New test.
5446 * testsuite/25_algorithms/equal/constrained.cc: New test.
5447 * testsuite/25_algorithms/equal_range/constrained.cc: New test.
5448 * testsuite/25_algorithms/fill/constrained.cc: New test.
5449 * testsuite/25_algorithms/fill_n/constrained.cc: New test.
5450 * testsuite/25_algorithms/find/constrained.cc: New test.
5451 * testsuite/25_algorithms/find_end/constrained.cc: New test.
5452 * testsuite/25_algorithms/find_first_of/constrained.cc: New test.
5453 * testsuite/25_algorithms/find_if/constrained.cc: New test.
5454 * testsuite/25_algorithms/find_if_not/constrained.cc: New test.
5455 * testsuite/25_algorithms/for_each/constrained.cc: New test.
5456 * testsuite/25_algorithms/generate/constrained.cc: New test.
5457 * testsuite/25_algorithms/generate_n/constrained.cc: New test.
5458 * testsuite/25_algorithms/heap/constrained.cc: New test.
5459 * testsuite/25_algorithms/includes/constrained.cc: New test.
5460 * testsuite/25_algorithms/inplace_merge/constrained.cc: New test.
5461 * testsuite/25_algorithms/is_partitioned/constrained.cc: New test.
5462 * testsuite/25_algorithms/is_permutation/constrained.cc: New test.
5463 * testsuite/25_algorithms/is_sorted/constrained.cc: New test.
5464 * testsuite/25_algorithms/is_sorted_until/constrained.cc: New test.
5465 * testsuite/25_algorithms/lexicographical_compare/constrained.cc: New
5467 * testsuite/25_algorithms/lower_bound/constrained.cc: New test.
5468 * testsuite/25_algorithms/max/constrained.cc: New test.
5469 * testsuite/25_algorithms/max_element/constrained.cc: New test.
5470 * testsuite/25_algorithms/merge/constrained.cc: New test.
5471 * testsuite/25_algorithms/min/constrained.cc: New test.
5472 * testsuite/25_algorithms/min_element/constrained.cc: New test.
5473 * testsuite/25_algorithms/minmax/constrained.cc: New test.
5474 * testsuite/25_algorithms/minmax_element/constrained.cc: New test.
5475 * testsuite/25_algorithms/mismatch/constrained.cc: New test.
5476 * testsuite/25_algorithms/move/constrained.cc: New test.
5477 * testsuite/25_algorithms/move_backward/constrained.cc: New test.
5478 * testsuite/25_algorithms/next_permutation/constrained.cc: New test.
5479 * testsuite/25_algorithms/none_of/constrained.cc: New test.
5480 * testsuite/25_algorithms/nth_element/constrained.cc: New test.
5481 * testsuite/25_algorithms/partial_sort/constrained.cc: New test.
5482 * testsuite/25_algorithms/partial_sort_copy/constrained.cc: New test.
5483 * testsuite/25_algorithms/partition/constrained.cc: New test.
5484 * testsuite/25_algorithms/partition_copy/constrained.cc: New test.
5485 * testsuite/25_algorithms/partition_point/constrained.cc: New test.
5486 * testsuite/25_algorithms/prev_permutation/constrained.cc: New test.
5487 * testsuite/25_algorithms/remove/constrained.cc: New test.
5488 * testsuite/25_algorithms/remove_copy/constrained.cc: New test.
5489 * testsuite/25_algorithms/remove_copy_if/constrained.cc: New test.
5490 * testsuite/25_algorithms/remove_if/constrained.cc: New test.
5491 * testsuite/25_algorithms/replace/constrained.cc: New test.
5492 * testsuite/25_algorithms/replace_copy/constrained.cc: New test.
5493 * testsuite/25_algorithms/replace_copy_if/constrained.cc: New test.
5494 * testsuite/25_algorithms/replace_if/constrained.cc: New test.
5495 * testsuite/25_algorithms/reverse/constrained.cc: New test.
5496 * testsuite/25_algorithms/reverse_copy/constrained.cc: New test.
5497 * testsuite/25_algorithms/rotate/constrained.cc: New test.
5498 * testsuite/25_algorithms/rotate_copy/constrained.cc: New test.
5499 * testsuite/25_algorithms/search/constrained.cc: New test.
5500 * testsuite/25_algorithms/search_n/constrained.cc: New test.
5501 * testsuite/25_algorithms/set_difference/constrained.cc: New test.
5502 * testsuite/25_algorithms/set_intersection/constrained.cc: New test.
5503 * testsuite/25_algorithms/set_symmetric_difference/constrained.cc: New
5505 * testsuite/25_algorithms/set_union/constrained.cc: New test.
5506 * testsuite/25_algorithms/shuffle/constrained.cc: New test.
5507 * testsuite/25_algorithms/sort/constrained.cc: New test.
5508 * testsuite/25_algorithms/stable_partition/constrained.cc: New test.
5509 * testsuite/25_algorithms/stable_sort/constrained.cc: New test.
5510 * testsuite/25_algorithms/swap_ranges/constrained.cc: New test.
5511 * testsuite/25_algorithms/transform/constrained.cc: New test.
5512 * testsuite/25_algorithms/unique/constrained.cc: New test.
5513 * testsuite/25_algorithms/unique_copy/constrained.cc: New test.
5514 * testsuite/25_algorithms/upper_bound/constrained.cc: New test.
5516 2020-02-06 Jonathan Wakely <jwakely@redhat.com>
5518 * include/bits/stl_iterator.h (__detail::__common_iter_ptr): Fix PR
5519 number in comment. Fix indentation.
5521 * include/bits/stl_algobase.h (__iter_swap, __iter_swap<true>): Remove
5522 redundant _GLIBCXX20_CONSTEXPR.
5524 * include/std/ranges (viewable_range): Replace decay_t with
5525 remove_cvref_t (LWG 3375).
5527 2020-02-05 Jonathan Wakely <jwakely@redhat.com>
5529 * include/bits/iterator_concepts.h (iter_reference_t)
5530 (iter_rvalue_reference_t, iter_common_reference_t, indirect_result_t):
5531 Remove workarounds for PR c++/67704.
5532 * testsuite/24_iterators/aliases.cc: New test.
5534 2020-02-05 Patrick Palka <ppalka@redhat.com>
5536 * include/bits/stl_iterator.h (move_iterator::move_iterator): Move __i
5537 when initializing _M_current.
5538 (move_iterator::base): Split into two overloads differing in
5539 ref-qualifiers as in P1207R4 for C++20.
5541 2020-02-04 Jonathan Wakely <jwakely@redhat.com>
5543 * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after
5547 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define.
5548 (unique_ptr::swap, unique_ptr<T[], D>::swap): Call it.
5549 * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test.
5551 2020-02-01 Andrew Burgess <andrew.burgess@embecosm.com>
5553 * configure: Regenerate.
5555 2020-01-31 Patrick Palka <ppalka@redhat.com>
5557 * testsuite/24_iterators/range_operations/distance.cc: Do not assume
5558 test_range::end() returns the same type as test_range::begin().
5559 * testsuite/24_iterators/range_operations/next.cc: Likewise.
5560 * testsuite/24_iterators/range_operations/prev.cc: Likewise.
5561 * testsuite/util/testsuite_iterators.h (__gnu_test::test_range::end):
5562 Always return a sentinel<I>.
5564 2020-01-29 Jonathan Wakely <jwakely@redhat.com>
5567 * include/std/stop_token (stop_token::stop_possible()): Call new
5568 _M_stop_possible() function.
5569 (stop_token::stop_requested()): Do not use stop_possible().
5570 (stop_token::binary_semaphore): New class, as temporary stand-in for
5571 std::binary_semaphore.
5572 (stop_token::_Stop_cb::_M_callback): Add noexcept to type.
5573 (stop_token::_Stop_cb::_M_destroyed, stop_token::_Stop_cb::_M_done):
5574 New data members for symchronization with stop_callback destruction.
5575 (stop_token::_Stop_cb::_Stop_cb): Make non-template.
5576 (stop_token::_Stop_cb::_M_linked, stop_token::_Stop_cb::_S_execute):
5578 (stop_token::_Stop_cb::_M_run): New member function.
5579 (stop_token::_Stop_state::_M_stopped, stop_token::_Stop_state::_M_mtx):
5581 (stop_token::_Stop_state::_M_owners): New data member to track
5582 reference count for ownership.
5583 (stop_token::_Stop_state::_M_value): New data member combining a
5584 spinlock, the stop requested flag, and the reference count for
5585 associated stop_source objects.
5586 (stop_token::_Stop_state::_M_requester): New data member for
5587 synchronization with stop_callback destruction.
5588 (stop_token::_Stop_state::_M_stop_possible()): New member function.
5589 (stop_token::_Stop_state::_M_stop_requested()): Inspect relevant bit
5591 (stop_token::_Stop_state::_M_add_owner)
5592 (stop_token::_Stop_state::_M_release_ownership)
5593 (stop_token::_Stop_state::_M_add_ssrc)
5594 (stop_token::_Stop_state::_M_sub_ssrc): New member functions for
5595 updating reference counts.
5596 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
5597 (stop_token::_Stop_state::_M_lock, stop_token::_Stop_state::_M_unlock)
5598 (stop_token::_Stop_state::_M_try_lock)
5599 (stop_token::_Stop_state::_M_try_lock_and_stop)
5600 (stop_token::_Stop_state::_M_do_try_lock): New member functions for
5602 (stop_token::_Stop_state::_M_request_stop): Use atomic operations to
5603 read and update state. Release lock while running callbacks. Use new
5604 data members to synchronize with callback destruction.
5605 (stop_token::_Stop_state::_M_remove_callback): Likewise.
5606 (stop_token::_Stop_state::_M_register_callback): Use atomic operations
5607 to read and update state.
5608 (stop_token::_Stop_state_ref): Handle type to manage _Stop_state,
5609 replacing shared_ptr.
5610 (stop_source::stop_source(const stop_source&)): Update reference count.
5611 (stop_source::operator=(const stop_source&)): Likewise.
5612 (stop_source::~stop_source()): Likewise.
5613 (stop_source::stop_source(stop_source&&)): Define as defaulted.
5614 (stop_source::operator=(stop_source&&)): Establish postcondition on
5616 (stop_callback): Enforce preconditions on template parameter. Replace
5617 base class with data member of new _Cb_impl type.
5618 (stop_callback::stop_callback(const stop_token&, Cb&&))
5619 (stop_callback::stop_callback(stop_token&&, Cb&&)): Fix TOCTTOU race.
5620 (stop_callback::_Cb_impl): New type wrapping _Callback member and
5621 defining the _S_execute member function.
5622 * testsuite/30_threads/stop_token/stop_callback/deadlock-mt.cc: New
5624 * testsuite/30_threads/stop_token/stop_callback/deadlock.cc: New test.
5625 * testsuite/30_threads/stop_token/stop_callback/destroy.cc: New test.
5626 * testsuite/30_threads/stop_token/stop_callback/destructible_neg.cc:
5628 * testsuite/30_threads/stop_token/stop_callback/invocable_neg.cc: New
5630 * testsuite/30_threads/stop_token/stop_callback/invoke.cc: New test.
5631 * testsuite/30_threads/stop_token/stop_source/assign.cc: New test.
5632 * testsuite/30_threads/stop_token/stop_token/stop_possible.cc: New
5635 * libsupc++/compare (__detail::__3way_builtin_ptr_cmp): Use
5636 three_way_comparable_with.
5637 (__detail::__3way_cmp_with): Remove workaround for fixed bug.
5638 (compare_three_way::operator()): Remove redundant constraint from
5640 (__detail::_Synth3way::operator()): Use three_way_comparable_with
5641 instead of workaround.
5642 * testsuite/18_support/comparisons/object/93479.cc: Prune extra
5643 output due to simplified constraints on compare_three_way::operator().
5646 * libsupc++/compare (__3way_builtin_ptr_cmp): Require <=> to be valid.
5647 * testsuite/18_support/comparisons/object/93479.cc: New test.
5649 * testsuite/std/ranges/access/end.cc: Do not assume test_range::end()
5650 returns the same type as test_range::begin(). Add comments.
5651 * testsuite/std/ranges/access/rbegin.cc: Likewise.
5652 * testsuite/std/ranges/access/rend.cc: Likewise.
5653 * testsuite/std/ranges/range.cc: Do not assume the sentinel for
5654 test_range is the same as its iterator type.
5655 * testsuite/util/testsuite_iterators.h (test_range::sentinel): Add
5656 operator- overloads to satisfy sized_sentinel_for when the iterator
5657 satisfies random_access_iterator.
5659 2020-01-28 Jonathan Wakely <jwakely@redhat.com>
5662 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict
5663 static assertion to object types.
5666 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for
5667 clock_gettime instead of explicit glibc version check.
5668 * configure: Regenerate.
5670 2020-01-28 Martin Liska <mliska@suse.cz>
5673 * include/std/atomic: Fix typo.
5674 * include/std/optional: Likewise.
5676 2020-01-27 Andrew Burgess <andrew.burgess@embecosm.com>
5678 * configure: Regenerate.
5680 2020-01-27 Jonathan Wakely <jwakely@redhat.com>
5683 * include/std/span (span): Fix deduction guide.
5684 * testsuite/23_containers/span/deduction.cc: New test.
5686 2020-01-24 Jonathan Wakely <jwakely@redhat.com>
5688 * libsupc++/compare (__cmp_cat::_Eq): Remove enumeration type.
5689 (__cmp_cat::_Ord::equivalent): Add enumerator.
5690 (__cmp_cat::_Ord::_Less, __cmp_cat::_Ord::_Greater): Rename to less
5692 (partial_ordering, weak_ordering, strong_ordering): Remove
5693 constructors taking __cmp_cat::_Eq parameters. Use renamed
5696 2020-01-24 Maciej W. Rozycki <macro@wdc.com>
5698 * acinclude.m4: Handle `--with-toolexeclibdir='.
5699 * Makefile.in: Regenerate.
5700 * aclocal.m4: Regenerate.
5701 * configure: Regenerate.
5702 * doc/Makefile.in: Regenerate.
5703 * include/Makefile.in: Regenerate.
5704 * libsupc++/Makefile.in: Regenerate.
5705 * po/Makefile.in: Regenerate.
5706 * python/Makefile.in: Regenerate.
5707 * src/Makefile.in: Regenerate.
5708 * src/c++11/Makefile.in: Regenerate.
5709 * src/c++17/Makefile.in: Regenerate.
5710 * src/c++98/Makefile.in: Regenerate.
5711 * src/filesystem/Makefile.in: Regenerate.
5712 * testsuite/Makefile.in: Regenerate.
5714 2020-01-23 Alexandre Oliva <oliva@adacore.com>
5716 * crossconfig.m4 (GLIBCXX_CHECK_MATH_DECL): Reject macros.
5717 * configure: Rebuild.
5719 * testsuite/27_io/fpos/mbstate_t/1.cc: Zero-init mbstate_t.
5721 2020-01-23 Jonathan Wakely <jwakely@redhat.com>
5724 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify
5726 * include/Makefile.in: Regenerate.
5728 2020-01-20 Jonathan Wakely <jwakely@redhat.com>
5730 * doc/xml/faq.xml: Fix grammar.
5731 * doc/xml/manual/appendix_contributing.xml: Improve instructions.
5732 * doc/xml/manual/spine.xml: Update copyright years.
5733 * doc/html/*: Regenerate.
5735 2020-01-19 Eric S. Raymond <esr@thyrsus.com>
5737 * doc/xml/faq.xml: Update for SVN -> Git transition.
5738 * doc/xml/manual/appendix_contributing.xml: Likewise.
5739 * doc/xml/manual/status_cxx1998.xml: Likewise.
5740 * doc/xml/manual/status_cxx2011.xml: Likewise.
5741 * doc/xml/manual/status_cxx2014.xml: Likewise.
5742 * doc/xml/manual/status_cxx2017.xml: Likewise.
5743 * doc/xml/manual/status_cxx2020.xml: Likewise.
5744 * doc/xml/manual/status_cxxtr1.xml: Likewise.
5745 * doc/xml/manual/status_cxxtr24733.xml: Likewise.
5747 2020-01-18 Iain Sandoe <iain@sandoe.co.uk>
5749 * include/Makefile.am: Add coroutine to the std set.
5750 * include/Makefile.in: Regenerated.
5751 * include/std/coroutine: New file.
5753 2020-01-17 Jonathan Wakely <jwakely@redhat.com>
5756 * include/bits/c++config: Only do PSTL config when the header is
5757 present, to fix freestanding.
5758 * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation
5759 functions if they were detected by configure.
5761 2020-01-16 Kai-Uwe Eckhardt <kuehro@gmx.de>
5762 Matthew Bauer <mjbauer95@gmail.com>
5763 Jonathan Wakely <jwakely@redhat.com>
5765 PR bootstrap/64271 (partial)
5766 * config/os/bsd/netbsd/ctype_base.h (ctype_base::mask): Change type
5768 (ctype_base::alpha, ctype_base::digit, ctype_base::xdigit)
5769 (ctype_base::print, ctype_base::graph, ctype_base::alnum): Sync
5770 definitions with NetBSD upstream.
5771 (ctype_base::blank): Use _CTYPE_BL.
5772 * config/os/bsd/netbsd/ctype_configure_char.cc (_C_ctype_): Remove
5774 (ctype<char>::classic_table): Use _C_ctype_tab_ instead of _C_ctype_.
5775 (ctype<char>::do_toupper, ctype<char>::do_tolower): Cast char
5776 parameters to unsigned char.
5777 * config/os/bsd/netbsd/ctype_inline.h (ctype<char>::is): Likewise.
5779 2020-01-16 François Dumont <fdumont@gcc.gnu.org>
5782 * include/bits/hashtable.h (_Hashtable<>): Make _Equality<> friend.
5783 * include/bits/hashtable_policy.h: Include <bits/stl_algo.h>.
5784 (_Equality_base): Remove.
5785 (_Equality<>::_M_equal): Review implementation. Use
5786 std::is_permutation.
5787 * testsuite/23_containers/unordered_multiset/operators/1.cc
5788 (Hash, Equal, test02, test03): New.
5789 * testsuite/23_containers/unordered_set/operators/1.cc
5790 (Hash, Equal, test02, test03): New.
5792 2020-01-15 Jonathan Wakely <jwakely@redhat.com>
5795 * include/bits/iterator_concepts.h (__max_diff_type, __max_size_type):
5796 Move here from <bits/range_access.h> and define using __int128 when
5798 (__is_integer_like, __is_signed_integer_like): Move here from
5799 <bits/range_access.h>.
5800 (weakly_incrementable): Use __is_signed_integer_like.
5801 * include/bits/range_access.h (__max_diff_type, __max_size_type)
5802 (__is_integer_like, __is_signed_integer_like): Move to
5803 <bits/iterator_concepts.h>.
5804 (__make_unsigned_like_t): Move here from <ranges>.
5805 * include/std/ranges (__make_unsigned_like_t): Move to
5806 <bits/range_access.h>.
5807 (iota_view): Replace using-directive with using-declarations.
5808 * testsuite/std/ranges/iota/93267.cc: New test.
5809 * testsuite/std/ranges/iota_view.cc: Move to new 'iota' sub-directory.
5811 2020-01-13 Jonathan Wakely <jwakely@redhat.com>
5814 * include/bits/fs_path.h (path::generic_string<C,A>)
5815 [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash.
5816 * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check
5817 root-dir is converted to forward slash in generic pathname.
5818 * testsuite/27_io/filesystem/path/generic/utf.cc: New test.
5819 * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test.
5822 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization):
5824 (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>)
5825 (__atomic_float): Add default member initializer for C++20.
5826 * include/std/atomic (atomic): Likewise.
5827 (atomic::atomic()): Remove noexcept-specifier on default constructor.
5828 * include/std/version (__cpp_lib_atomic_value_initialization): Define.
5829 * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line
5831 * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise.
5832 * testsuite/29_atomics/atomic/cons/value_init.cc: New test.
5833 * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test.
5834 * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust
5835 expected result for is_trivially_default_constructible.
5836 * testsuite/29_atomics/atomic_float/requirements.cc: Likewise.
5837 * testsuite/29_atomics/atomic_float/value_init.cc: New test.
5838 * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise.
5839 * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise.
5840 * testsuite/29_atomics/atomic_integral/cons/value_init.cc
5841 * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust
5842 expected results for is_trivially_default_constructible.
5843 * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add
5846 2020-01-10 Jonathan Wakely <jwakely@redhat.com>
5848 * testsuite/util/testsuite_iterators.h: Improve comment.
5850 * testsuite/25_algorithms/equal/deque_iterators/1.cc: Don't use C++11
5851 initialization syntax.
5854 * include/bits/streambuf_iterator.h (istreambuf_iterator): Make type
5855 of base class independent of __cplusplus value.
5856 [__cplusplus < 201103L] (istreambuf_iterator::reference): Override the
5857 type defined in the base class
5858 * testsuite/24_iterators/istreambuf_iterator/92285.cc: New test.
5859 * testsuite/24_iterators/istreambuf_iterator/requirements/
5860 base_classes.cc: Adjust expected base class for C++98.
5862 2020-01-09 Olivier Hainque <hainque@adacore.com>
5864 * doc/xml/manual/appendix_contributing.xml: Document _C2
5865 as a reserved identifier, by VxWorks.
5866 * include/bits/stl_map.h: Rename _C2 template typenames as _Cmp2.
5867 * include/bits/stl_multimap.h: Likewise.
5869 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
5871 * include/ext/extptr_allocator.h (_ExtPtr_allocator::operator==)
5872 (_ExtPtr_allocator::operator!=): Add missing const qualifiers.
5873 * include/ext/pointer.h (readable_traits<_Pointer_adapter<S>>): Add
5874 partial specialization to disambiguate the two constrained
5877 * include/experimental/type_traits (experimental::is_pod_v): Disable
5878 -Wdeprecated-declarations warnings around reference to std::is_pod.
5879 * include/std/type_traits (is_pod_v): Likewise.
5880 * testsuite/18_support/max_align_t/requirements/2.cc: Also check
5881 is_standard_layout and is_trivial. Do not check is_pod for C++20.
5882 * testsuite/20_util/is_pod/requirements/explicit_instantiation.cc:
5883 Add -Wno-deprecated for C++20.
5884 * testsuite/20_util/is_pod/requirements/typedefs.cc: Likewise.
5885 * testsuite/20_util/is_pod/value.cc: Likewise.
5886 * testsuite/experimental/type_traits/value.cc: Likewise.
5888 2020-01-09 JeanHeyd "ThePhD" Meneide <phdofthehouse@gmail.com>
5890 * include/bits/c++config (_GLIBCXX20_DEPRECATED): Add new macro.
5891 * include/std/type_traits (is_pod, is_pod_v): Deprecate for C++20.
5892 * testuite/20_util/is_pod/deprecated-2a.cc: New test.
5894 2020-01-09 Jonathan Wakely <jwakely@redhat.com>
5897 * include/bits/random.h (operator>>): Check stream operation succeeds.
5898 * include/bits/random.tcc (operator<<): Remove redundant __ostream_type
5900 (operator>>): Remove redundant __istream_type typedefs. Check stream
5902 (__extract_params): New function to fill a vector from a stream.
5903 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line.
5906 * config/abi/pre/gnu.ver: Add new exports.
5907 * include/std/memory_resource (memory_resource::~memory_resource()):
5908 Do not define inline.
5909 (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise.
5910 * src/c++17/memory_resource.cc (memory_resource::~memory_resource()):
5912 (monotonic_buffer_resource::~monotonic_buffer_resource()): Define.
5913 * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test.
5915 2020-01-09 François Dumont <fdumont@gcc.gnu.org>
5918 * include/bits/hashtable.h (_Hashtable<>::__alloc_node_gen_t): New
5920 (_Hashtable<>::__fwd_value_for): New.
5921 (_Hashtable<>::_M_assign_elements<>): Remove _NodeGenerator template
5923 (_Hashtable<>::_M_assign<>): Add _Ht template parameter.
5924 (_Hashtable<>::operator=(const _Hashtable<>&)): Adapt.
5925 (_Hashtable<>::_M_move_assign): Adapt. Replace std::move_if_noexcept
5927 (_Hashtable<>::_Hashtable(const _Hashtable&)): Adapt.
5928 (_Hashtable<>::_Hashtable(const _Hashtable&, const allocator_type&)):
5930 (_Hashtable<>::_Hashtable(_Hashtable&&, const allocator_type&)):
5932 * testsuite/23_containers/unordered_set/92124.cc: New.
5934 2020-01-08 Jonathan Wakely <jwakely@redhat.com>
5937 * src/c++17/fs_ops.cc (do_remove_all): New function implementing more
5938 detailed error reporting for remove_all. Check result of recursive
5939 call before incrementing iterator.
5940 (remove_all(const path&), remove_all(const path&, error_code&)): Use
5942 * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Check
5943 result of recursive call before incrementing iterator.
5944 * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors
5945 are reported correctly.
5946 * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise.
5948 2020-01-07 Thomas Rodgers <trodgers@redhat.com>
5950 * include/std/condition_variable
5951 (condition_variable_any::wait_on): Rename to match current draft
5953 (condition_variable_any::wait_on_until): Likewise.
5954 (condition_variable_any::wait_on_for): Likewise.
5955 * testsuite/30_threads/condition_variable_any/stop_token/wait_on.cc:
5956 Adjust tests to account for renamed methods.
5958 2020-01-07 François Dumont <fdumont@gcc.gnu.org>
5961 * include/bits/stl_tree.h
5962 (_Rb_tree<>::_M_move_assign(_Rb_tree&, false_type)): Replace
5963 std::move_if_noexcept by std::move.
5964 * testsuite/23_containers/map/92124.cc: New.
5965 * testsuite/23_containers/set/92124.cc: New.
5967 2020-01-06 Jonathan Wakely <jwakely@redhat.com>
5969 * include/std/stop_token (stop_token): Remove operator!= (LWG 3254).
5970 (stop_source): Likewise (LWG 3362).
5971 * testsuite/30_threads/stop_token/stop_source.cc: Test equality
5974 * include/bits/stl_algobase.h (__is_byte_iter, __min_cmp)
5975 (lexicographical_compare_three_way): Do not depend on
5977 * include/std/version (__cpp_lib_three_way_comparison): Only define
5978 when __cpp_lib_concepts is defined.
5979 * libsupc++/compare (__cpp_lib_three_way_comparison): Likewise.
5981 2020-01-03 Jonathan Wakely <jwakely@redhat.com>
5983 * include/bits/stl_algobase.h (lexicographical_compare_three_way):
5984 Only define four-argument overload when __cpp_lib_concepts is defined.
5986 2020-01-01 John David Anglin <danglin@gcc.gnu.org>
5988 * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
5990 2020-01-01 Jakub Jelinek <jakub@redhat.com>
5992 Update copyright years.
5994 Copyright (C) 2020 Free Software Foundation, Inc.
5996 Copying and distribution of this file, with or without modification,
5997 are permitted in any medium without royalty provided the copyright
5998 notice and this notice are preserved.