2025-05-23 Release Manager * GCC 14.3.0 released. 2025-05-13 Jonathan Wakely Backported from master: 2025-05-12 Jonathan Wakely PR libstdc++/120198 * include/bits/version.def (scoped_lock): Do not depend on gthreads or hosted. * include/bits/version.h: Regenerate. * include/std/mutex (scoped_lock): Update comment. * testsuite/30_threads/scoped_lock/requirements/typedefs.cc: Remove dg-require-gthreads and use custom lockable type instead of std::mutex. Check that typedef is only present for a single template argument. 2025-05-12 Jonathan Wakely * doc/xml/manual/status_cxx2023.xml: Update status of proposal implemented after GCC 14.2 release. * doc/html/manual/status.html: Regenerate. 2025-05-06 Dhruv Chawla Backported from master: 2025-05-02 Dhruv Chawla * include/std/memory: Define __glibcxx_want_addressof_constexpr. * testsuite/20_util/headers/memory/version.cc: Test for macro value. 2025-04-30 François Dumont Backported from master: 2025-04-30 François Dumont Jonathan Wakely * testsuite/lib/libstdc++.exp (v3_target_compile): Strip version namespace from compiler output. * testsuite/20_util/function/cons/70692.cc: Remove now useless __8 namespace pattern. * testsuite/23_containers/map/48101_neg.cc: Likewise. * testsuite/23_containers/multimap/48101_neg.cc: Likewise. 2025-04-29 Patrick Palka Backported from master: 2025-02-28 Patrick Palka PR libstdc++/104606 * include/std/optional (operator<=>): Revert r14-9771 change. Add constraint checking the validity of the return type compare_three_way_result_t before the three_way_comparable_with constraint. 2025-04-29 Patrick Palka Backported from master: 2025-02-26 Patrick Palka PR libstdc++/118083 * include/bits/ranges_base.h (ranges::__access::__possibly_const_range): Mention LWG 4027. 2025-04-29 Patrick Palka Backported from master: 2025-02-25 Patrick Palka PR libstdc++/118083 * include/bits/ranges_base.h (ranges::__access::__possibly_const_range): Adjust logic as per LWG 4027. Add missing input_range constraint. * testsuite/std/ranges/access/cbegin.cc (test05): Verify LWG 4027 testcases. * testsuite/std/ranges/access/cdata.cc: Adjust, simplify and consolidate some tests after the above. * testsuite/std/ranges/access/cend.cc: Likewise. * testsuite/std/ranges/access/crbegin.cc: Likewise. * testsuite/std/ranges/access/crend.cc: Likewise. * testsuite/std/ranges/adaptors/join.cc: Likewise. * testsuite/std/ranges/adaptors/take_while.cc: Likewise. * testsuite/std/ranges/adaptors/transform.cc: Likewise. 2025-04-17 Tomasz Kamiński Backported from master: 2025-03-12 Tomasz Kamiński * include/std/format (formatter<_Float16, _CharT>): Define only if _GLIBCXX_FLOAT_IS_IEEE_BINARY32 macro is defined. (formatter<_Float16, _CharT>): As above. (formatter<__gnu_cxx::__bfloat16_t, _CharT>): As above. (formatter<_Float64, _CharT>): Define only if _GLIBCXX_DOUBLE_IS_IEEE_BINARY64 is defined. (basic_format_arg::_S_to_arg_type): Normalize _Float32 and _Float64 only to float and double respectivelly. (basic_format_arg::_S_to_enum): Remove handling of _Float32 and _Float64. 2025-04-16 Jonathan Wakely * include/std/numeric: Only mention ranges::iota in comment. 2025-04-16 Jonathan Wakely * testsuite/17_intro/names.cc: Check ranges is not used as an identifier before C++20. 2025-04-16 Jonathan Wakely Backported from master: 2025-04-15 Jonathan Wakely * include/std/ranges (__glibcxx_want_ranges_iota): Do not define. 2025-04-16 Michael Levine Backported from master: 2024-06-08 Michael Levine PR libstdc++/108760 * include/bits/ranges_algo.h (ranges::out_value_result) (ranges::iota_result, ranges::__iota_fn, ranges::iota): Move to . * include/bits/ranges_algobase.h (ranges::out_value_result): (ranges::iota_result, ranges::__iota_fn, ranges::iota): Move to here. * include/std/numeric: Include . * testsuite/25_algorithms/iota/1.cc: Renamed to ... * testsuite/26_numerics/iota/2.cc: ... here. 2025-04-16 Jonathan Wakely Backported from master: 2025-02-28 Jonathan Wakely PR libstdc++/105609 * include/bits/ranges_algobase.h (__detail::__assign_one): New helper function. (__copy_or_move, __copy_or_move_backward): Use new function instead of std::__assign_one. * testsuite/25_algorithms/move/constrained.cc: Check that ADL iter_move is used in preference to std::move. * testsuite/25_algorithms/move_backward/constrained.cc: Likewise. 2025-04-16 Jonathan Wakely Backported from master: 2024-10-18 Jonathan Wakely * include/bits/ranges_algobase.h (ranges::__assign_one): Remove. (__copy_or_move, __copy_or_move_backward): Use std::__assign_one instead of ranges::__assign_one. 2025-04-16 Jonathan Wakely Backported from master: 2024-10-13 Jonathan Wakely PR libstdc++/117121 * include/bits/ranges_algobase.h (copy_backward): Decrement output iterator before assigning one element through it. * testsuite/25_algorithms/copy/108846.cc: Ensure the algorithm's effects are correct for a single memcpyable element. * testsuite/25_algorithms/copy_backward/108846.cc: Likewise. * testsuite/25_algorithms/copy_n/108846.cc: Likewise. 2025-04-16 Giuseppe D'Angelo Backported from master: 2024-09-13 Giuseppe D'Angelo PR libstdc++/108846 PR libstdc++/116471 * include/bits/ranges_algobase.h (__assign_one): New helper function. (__copy_or_move): Remove a spurious static_assert; use __assign_one for memcpyable ranges of length 1. (__copy_or_move_backward): Likewise. * testsuite/25_algorithms/copy/108846.cc: Extend to range-based algorithms, and cover both memcpyable and non-memcpyable cases. * testsuite/25_algorithms/copy_backward/108846.cc: Likewise. * testsuite/25_algorithms/copy_n/108846.cc: Likewise. * testsuite/25_algorithms/move/108846.cc: Likewise. * testsuite/25_algorithms/move_backward/108846.cc: Likewise. 2025-04-16 Jonathan Wakely Backported from master: 2024-06-07 Jonathan Wakely * include/bits/ranges_algobase.h: Include . 2025-04-15 Jonathan Wakely Backported from master: 2025-04-14 Jonathan Wakely PR libstdc++/21334 * doc/xml/manual/using.xml: Document that container data race avoidance rules do not apply to COW std::string. * doc/html/*: Regenerate. 2025-04-10 Jonathan Wakely Backported from master: 2024-11-07 Jonathan Wakely PR libstdc++/115285 * include/bits/hashtable.h (_Hashtable::_S_forward_key): Remove. (_Hashtable::_M_insert_unique_aux): Replace _S_forward_key with a static_cast to a type defined using conditional_t. (_Hashtable::_M_insert): Replace _ConvertToValueType with a static_cast to a type defined using conditional_t. * include/bits/hashtable_policy.h (_ConvertToValueType): Remove. * testsuite/23_containers/unordered_map/insert/115285.cc: New test. * testsuite/23_containers/unordered_set/insert/115285.cc: New test. * testsuite/23_containers/unordered_set/96088.cc: Adjust expected number of allocations. 2025-04-10 Jonathan Wakely Backported from master: 2024-11-07 Jonathan Wakely * include/bits/stl_pair.h (__is_pair): Define for C++11 and C++14 as well. 2025-04-10 François Dumont Backported from master: 2024-10-24 François Dumont * testsuite/23_containers/unordered_map/96088.cc (test03): Fix increments value when _GLIBCXX_USE_CXX11_ABI is equal to 0. 2025-04-10 François Dumont Backported from master: 2024-10-23 François Dumont PR libstdc++/115285 * include/bits/hashtable.h (_S_forward_key<_Kt>): Always return a temporary key_type instance. * testsuite/23_containers/unordered_map/96088.cc: Adapt to additional instanciation. Also check that mapped_type is not instantiated when there is no insertion. * testsuite/23_containers/unordered_multimap/96088.cc: Adapt to additional instanciation. * testsuite/23_containers/unordered_multiset/96088.cc: Likewise. * testsuite/23_containers/unordered_set/96088.cc: Likewise. * testsuite/23_containers/unordered_set/pr115285.cc: New test case. 2025-04-09 Patrick Palka Backported from master: 2025-04-09 Patrick Palka PR libstdc++/115046 PR libstdc++/112490 * include/bits/stl_iterator.h (basic_const_iterator::operator-): Replace non-dependent basic_const_iterator function parameter with a dependent one of type basic_const_iterator<_It2> where _It2 matches _It. * testsuite/std/ranges/adaptors/as_const/1.cc (test04): New test. 2025-04-08 Jonathan Wakely Backported from master: 2025-04-08 Jonathan Wakely PR libstdc++/119671 * include/std/format (__formatter_fp::format): Do not invalidate __wstr unless _M_localized returns a valid string. * testsuite/std/format/functions/format.cc: Check wide string formatting of floating-point types with classic locale. 2025-04-08 Jonathan Wakely Backported from master: 2025-04-07 Jonathan Wakely * doc/doxygen/user.cfg.in (INPUT): Add text_encoding. 2025-04-08 Jonathan Wakely Backported from master: 2025-04-04 Jonathan Wakely PR libstdc++/101587 * include/bits/ranges_uninitialized.h (__detail::__mindist): Remove. (ranges::uninitialized_copy, ranges::uninitialized_copy_n) (ranges::uninitialized_move, ranges::uninitialized_move_n): Use comparison and assignment instead of __mindist. * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc: Check with ranges that use integer-like class type for difference type. * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc: Likewise. 2025-04-08 Jonathan Wakely Backported from master: 2025-03-27 Jonathan Wakely PR libstdc++/101587 * include/bits/ranges_uninitialized.h (__detail::__mindist): New function object. (ranges::uninitialized_copy, ranges::uninitialized_copy_n) (ranges::uninitialized_move, ranges::uninitialized_move_n): Use __mindist instead of std::min. * testsuite/20_util/specialized_algorithms/uninitialized_copy/constrained.cc: Check ranges with difference difference types. * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc: Likewise. 2025-04-07 Patrick Palka Backported from master: 2025-03-13 Patrick Palka PR libstdc++/116440 * include/std/tuple (tuple::tuple(const _Elements&...)) [C++20]: Turn into a template. * testsuite/20_util/tuple/116440.C: New test. 2025-04-03 Tomasz Kamiński Backported from master: 2025-04-03 Tomasz Kamiński * testsuite/std/format/functions/format.cc: Restored line. 2025-04-03 Tomasz Kamiński PR libstdc++/119593 * include/bits/unicode.h (__unicode::__literal_encoding_is_unicode<_CharT>): Corrected handing for UTF-16 and UTF-32 with "LE" or "BE" suffix. * include/std/format (__formatter_str::_S_character_width): Define. (__formatter_str::_S_character_width): Updated passed char length. * testsuite/std/format/functions/format.cc: Test for wchar_t. 2025-04-02 Jonathan Wakely Backported from master: 2025-03-27 Jonathan Wakely PR libstdc++/119469 * include/bits/iterator_concepts.h (_IterMove::__result): Use decltype-specifier instead of an explicit type. * testsuite/24_iterators/customization_points/iter_move.cc: Check results for function references. 2025-04-02 Jonathan Wakely Backported from master: 2025-02-28 Jonathan Wakely PR libstdc++/106612 * include/bits/iterator_concepts.h (_IterMove::__iter_ref_t): New alias template. (_IterMove::__result): Use __iter_ref_t instead of std::iter_reference_t. (_IterMove::__type): Remove incorrect __dereferenceable constraint. (_IterMove::operator()): Likewise. Add correct constraints. Use __iter_ref_t instead of std::iter_reference_t. Forward parameter as correct value category. (iter_swap): Add comments. * testsuite/24_iterators/customization_points/iter_move.cc: Test that iter_move is found by ADL and that rvalue arguments are handled correctly. 2025-04-02 Jonathan Wakely Backported from master: 2025-03-31 Jonathan Wakely PR libstdc++/110498 * include/bits/vector.tcc (vector::_M_reallocate): Hoist loads of begin() and end() before allocation and use them to state an unreachable condition. * testsuite/23_containers/vector/bool/capacity/110498.cc: New test. 2025-04-02 Jonathan Wakely Backported from master: 2025-03-31 Jonathan Wakely PR libstdc++/114758 * include/bits/vector.tcc (vector::_M_fill_insert): Hoist loads of begin() and end() before allocation. * testsuite/23_containers/vector/bool/capacity/114758.cc: New test. 2025-04-02 Jonathan Wakely Backported from master: 2025-03-28 Jonathan Wakely PR libstdc++/117983 * include/bits/vector.tcc (vector::_M_range_insert): Add unreachable condition to tell the compiler begin() <= end(). * testsuite/23_containers/vector/modifiers/insert/117983.cc: New test. 2025-04-02 Jonathan Wakely Backported from master: 2025-04-01 Jonathan Wakely PR libstdc++/114945 * include/bits/vector.tcc (vector::_M_default_append): Add unreachable condition so the compiler knows that _M_finish is not null. * testsuite/23_containers/vector/capacity/114945.cc: New test. 2025-04-01 Jonathan Wakely PR libstdc++/116212 * testsuite/20_util/specialized_algorithms/uninitialized_move/constrained.cc: Use unsigned for vector size. 2025-04-01 Jonathan Wakely Backported from master: 2024-06-13 Jonathan Wakely * include/bits/ranges_base.h (range_common_reference_t): New alias template, as per LWG 3860. * testsuite/std/ranges/range.cc: Check it. 2025-04-01 Jonathan Wakely Backported from master: 2025-01-16 Jonathan Wakely * include/bits/stl_map.h: Check __glibcxx_node_extract instead of __cplusplus. * include/bits/stl_multimap.h: Likewise. * include/bits/stl_multiset.h: Likewise. * include/bits/stl_set.h: Likewise. * include/bits/stl_tree.h: Likewise. 2025-04-01 Jonathan Wakely Backported from master: 2025-03-12 Jonathan Wakely * include/std/future (packaged_task::packaged_task(F&&)): Add static_assert. * testsuite/30_threads/packaged_task/cons/dangling_ref.cc: Add dg-error for new static assertion. * testsuite/30_threads/packaged_task/cons/lwg4154_neg.cc: New test. 2025-04-01 Jonathan Wakely Backported from master: 2025-03-25 Jonathan Wakely PR libstdc++/118699 * testsuite/27_io/filesystem/operations/copy.cc: Check copying a file to a directory. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-24 Jonathan Wakely PR libstdc++/101527 * testsuite/24_iterators/common_iterator/101527.cc: New test. * testsuite/24_iterators/counted_iterator/101527.cc: New test. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-04 Jonathan Wakely * doc/xml/manual/test.xml: Remove stray comma. * doc/html/manual/test.html: Regenerate. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-07 Jonathan Wakely * include/std/forward_list (erase): Change lambda to have explicit return type and const parameter type. * include/std/list (erase): Likewise. * testsuite/23_containers/forward_list/erasure.cc: Check lambda is correct. * testsuite/23_containers/list/erasure.cc: Likewise. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-24 Jonathan Wakely * doc/xml/manual/policy_data_structures_biblio.xml: Fix two broken links. * doc/html/manual/policy_data_structures.html: Regenerate. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-25 Jonathan Wakely PR libstdc++/108487 * include/bits/stl_vector.h (vector(initializer_list)): Call _M_range_initialize_n instead of _M_range_initialize. (vector(InputIterator, InputIterator)): Use _M_range_initialize_n for C++20 sized sentinels and forward iterators. (vector::_M_range_initialize(FwIt, FwIt, forward_iterator_tag)): Use _M_range_initialize_n. (vector::_M_range_initialize_n): New function. * testsuite/23_containers/vector/cons/108487.cc: New test. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-27 Jonathan Wakely * src/c++20/tzdata.zi: Import new file from 2025b release. 2025-03-31 Jonathan Wakely Backported from master: 2025-03-12 Jonathan Wakely * include/std/chrono (__detail::__get_leap_second_info): Update expiry date for leap seconds list. * src/c++20/tzdata.zi: Import new file from 2025a release. * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds) Update expiry date for leap seconds list. 2025-03-26 Jonathan Wakely Backported from master: 2025-03-25 Jonathan Wakely * include/std/ranges (ranges::to): Allow unions as well as non-union class types. * testsuite/std/ranges/conv/lwg4229.cc: New test. 2025-03-26 Jonathan Wakely Backported from master: 2025-02-28 Jonathan Wakely PR libstdc++/112803 * include/std/ranges (ranges::to): Add static assertions to enforce Mandates conditions. * testsuite/std/ranges/conv/112803.cc: New test. 2025-03-26 Jonathan Wakely Backported from master: 2025-03-25 Jonathan Wakely PR libstdc++/119429 * include/std/format (__format::_Scanner::_Scanner): Cast default argument to size_t. 2025-03-26 Jonathan Wakely Backported from master: 2024-08-23 Jonathan Wakely PR libstdc++/115939 * include/bits/hashtable_policy.h (_Node_iterator): Add operator== and operator!=. (_Node_const_iterator): Likewise. * testsuite/23_containers/unordered_map/115939.cc: New test. 2025-03-25 Patrick Palka Backported from master: 2025-03-13 Patrick Palka PR libstdc++/119135 * include/std/ranges: Include . (views::__detail::__is_ref_view): Replace with ... (views::__detail::__is_constable_ref_view): ... this. (views::_AsConst::operator()): Replace bogus use of element_type in the ref_view branch. * testsuite/std/ranges/adaptors/as_const/1.cc (test03): Extend test. 2025-03-21 Jonathan Wakely Backported from master: 2025-03-19 Jonathan Wakely * doc/xml/manual/test.xml: Fix default for -std option. * doc/html/manual/test.html: Regenerate. 2025-03-21 Jakub Jelinek Backported from master: 2025-03-20 Jakub Jelinek * testsuite/18_support/numeric_limits/traps.cc (main): Fix comment typo. 2025-03-21 Jonathan Wakely Backported from master: 2025-03-19 Jonathan Wakely * include/bits/locale_facets_nonio.tcc (time_put::do_put): Fix typo in comment. 2025-03-18 Patrick Palka Backported from master: 2025-02-28 Patrick Palka PR libstdc++/112490 * include/bits/stl_iterator.h (basic_const_iterator::operator<): Replace non-dependent basic_const_iterator function parameter with a dependent one of type basic_const_iterator<_It3> where _It3 matches _It. (basic_const_iterator::operator>): Likewise. (basic_const_iterator::operator<=): Likewise. (basic_const_iterator::operator>=): Likewise. * testsuite/24_iterators/const_iterator/112490.cc: New test. 2025-03-05 Tomasz Kamiński Backported from master: 2025-03-05 Tomasz Kamiński PR libstdc++/119121 * include/bits/ranges_util.h (__detail::__pair_like_convertible_from): Use `_Tp` in `is_reference_v` check * testsuite/std/ranges/subrange/tuple_like.cc: New tests for pair-like conversion 2025-02-28 Jonathan Wakely Backported from master: 2025-02-20 Jonathan Wakely PR libstdc++/118811 * src/c++20/tzdb.cc (tzdb_list::_Node): Move definitions of static data members to new header. * src/c++20/tzdb_globals.h: New header. Use init_priority attribute on static data members. * testsuite/std/time/tzdb_list/pr118811.cc: New test. 2025-02-28 Jonathan Wakely Backported from master: 2024-08-23 Jonathan Wakely * include/std/tuple: Do not include implementation details in Doxygen documentation. 2025-02-28 Jonathan Wakely Backported from master: 2025-02-27 Jonathan Wakely * include/std/stacktrace (_Impl::_M_allocate): Fix outdated comment. 2025-02-28 Jonathan Wakely Backported from master: 2024-06-03 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::_Impl::_M_allocate): Use __detail::__get_temporary_buffer. (basic_stacktrace::_Impl::_M_deallocate): Use __detail::__return_temporary_buffer. 2025-02-28 Jonathan Wakely Backported from master: 2024-06-03 Jonathan Wakely * include/std/string_view (starts_with(basic_string_view)): Compare lengths first and then call traits_type::compare directly. 2025-02-28 Jonathan Wakely Backported from master: 2024-06-28 Jonathan Wakely PR libstdc++/104395 * include/bits/new_allocator.h: Disable extended alignment support in C++98 mode. * include/bits/stl_tempbuf.h: Likewise. * include/ext/bitmap_allocator.h: Likewise. * include/ext/malloc_allocator.h: Likewise. * include/ext/mt_allocator.h: Likewise. * include/ext/pool_allocator.h: Likewise. * testsuite/ext/104395.cc: New test. 2025-02-28 Jonathan Wakely Backported from master: 2024-06-19 Jonathan Wakely * include/bits/stl_tempbuf.h (__get_temporary_buffer): Cast argument to size_t to handle negative values and suppress -Wsign-compare warning. (_Temporary_buffer): Move diagnostic pragmas to new location of call to std::get_temporary_buffer. 2025-02-28 Jonathan Wakely Backported from master: 2024-06-03 Jonathan Wakely PR libstdc++/105258 * include/bits/stl_tempbuf.h (__detail::__get_temporary_buffer): New function to do allocation for get_temporary_buffer, with extended alignment support. (__detail::__return_temporary_buffer): Support extended alignment. (get_temporary_buffer): Use __get_temporary_buffer. (return_temporary_buffer): Support extended alignment. Add deprecated attribute. (_Temporary_buffer): Move allocation and deallocation into a subobject and remove try-catch block in constructor. (__uninitialized_construct_buf): Use argument deduction for value type. * testsuite/20_util/temporary_buffer.cc: Add dg-warning for new deprecated warning. * testsuite/25_algorithms/stable_sort/overaligned.cc: New test. 2025-02-28 Giuseppe D'Angelo Backported from master: 2025-02-07 Giuseppe D'Angelo PR libstdc++/118160 PR libstdc++/100249 * include/bits/ranges_algo.h (__is_permutation_fn): Avoid a dangling reference by storing the result of the iterator dereference and the result of the projection in two distinct variables, in order to lifetime-extend each one. Forward the projected value to the predicate. * testsuite/25_algorithms/is_permutation/constrained.cc: Add a test with a range returning prvalues. Test it in a constexpr context, in order to rely on the compiler to catch UB. 2025-02-28 Jonathan Wakely Backported from master: 2024-06-21 Jonathan Wakely * include/bits/stl_uninitialized.h (uninitialized_default_construct) (uninitialized_default_construct_n, uninitialized_value_construct) (uninitialized_value_construct_n): Qualify calls to prevent ADL. 2025-02-28 Jonathan Wakely Backported from master: 2024-12-18 Jonathan Wakely * include/bits/basic_string.h (__to_wstring_numeric): Add 'i' and 'I' to mapping. 2025-02-28 Jonathan Wakely Backported from master: 2024-12-09 Jonathan Wakely PR libstdc++/117921 * testsuite/23_containers/set/modifiers/swap/adl.cc: Add equality comparison for Allocator. * testsuite/23_containers/unordered_set/modifiers/swap-2.cc: Likewise. 2025-02-28 Jonathan Wakely Backported from master: 2024-12-05 Jonathan Wakely PR libstdc++/117921 * include/bits/hashtable_policy.h (_Hash_code_base::_M_swap): Use ADL swap for Hash members. (_Hashtable_base::_M_swap): Use ADL swap for _Equal members. * include/bits/stl_tree.h (_Rb_tree::swap): Use ADL swap for _Compare members. * testsuite/23_containers/set/modifiers/swap/adl.cc: New test. * testsuite/23_containers/unordered_set/modifiers/swap-2.cc: New test. 2025-02-28 Jonathan Wakely Backported from master: 2024-11-27 Jonathan Wakely * include/bits/forward_list.h (forward_list::front): Add non-empty assertions. * include/bits/stl_list.h (list::front, list::back): Add non-empty assertions. 2025-02-28 Jonathan Wakely Backported from master: 2025-01-16 Jonathan Wakely PR libstdc++/118158 * src/c++17/fs_ops.cc (fs::equivalent): Remove error reporting for is_other(s1) && is_other(s2) case, as per LWG 2937. * testsuite/27_io/filesystem/operations/pr118158.cc: New test. 2025-01-29 Patrick Palka Backported from master: 2025-01-29 Patrick Palka PR libstdc++/118413 * include/std/ranges (views::__adaptor::_Partial): Adjust constraints on the "simple" partial specializations to require is_trivially_copy_constructible_v instead of is_trivially_copyable_v. * testsuite/std/ranges/adaptors/adjacent_transform/1.cc (test04): Extend P2494R2 test. * testsuite/std/ranges/adaptors/transform.cc (test09): Likewise. 2025-01-27 Giuseppe D'Angelo Backported from master: 2025-01-20 Giuseppe D'Angelo PR libstdc++/118185 PR libstdc++/100249 * include/bits/ranges_algo.h (__clamp_fn): Correctly forward the projected value to the comparator. * testsuite/25_algorithms/clamp/118185.cc: New test. 2025-01-16 Jonathan Wakely Backported from master: 2025-01-15 Jonathan Wakely PR libstdc++/109849 * include/bits/vector.tcc (vector::_M_range_insert): Fix reversed args in length calculation. 2025-01-16 Jonathan Wakely Backported from master: 2024-09-27 Jonathan Wakely * include/bits/istream.tcc: Add diagnostic pragmas around uses of long long and extern template. * include/bits/locale_facets.h: Likewise. * include/bits/locale_facets.tcc: Likewise. * include/bits/locale_facets_nonio.tcc: Likewise. * include/bits/ostream.tcc: Likewise. * include/bits/stl_algobase.h: Likewise. * include/c_global/cstdlib: Likewise. * include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp: Likewise. * include/ext/pointer.h: Likewise. * include/ext/stdio_sync_filebuf.h: Likewise. * include/std/istream: Likewise. * include/std/ostream: Likewise. * include/tr1/cmath: Likewise. * include/tr1/type_traits: Likewise. * include/tr1/functional_hash.h: Likewise. Remove semi-colons at namespace scope that aren't needed after macro expansion. * include/tr1/tuple: Remove semi-colon at namespace scope. * include/bits/vector.tcc: Change LL suffix to just L. 2025-01-16 Jonathan Wakely Backported from master: 2025-01-08 Jonathan Wakely PR libstdc++/90389 * include/bits/deque.tcc (_M_insert_aux): Rename variadic overload to _M_emplace_aux. * include/bits/stl_deque.h (_M_insert_aux): Define inline. (_M_emplace_aux): Declare. * testsuite/23_containers/deque/modifiers/emplace/90389.cc: New test. 2025-01-12 Torbjörn SVENSSON Backported from master: 2025-01-12 Torbjörn SVENSSON * testsuite/27_io/print/1.cc: Allow both LF and CRLF in test. * testsuite/27_io/print/3.cc: Likewise. 2025-01-12 Torbjörn SVENSSON Backported from master: 2025-01-12 Torbjörn SVENSSON * testsuite/29_atomics/atomic_float/compare_exchange_padding.cc: Use effective-target libatomic_available. 2025-01-10 Tamar Christina * include/bits/hashtable.h (find): Add inline keyword. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-10 Jonathan Wakely * include/bits/memory_resource.h (polymoprhic_allocator): Use feature test macro for P0339R6 features. 2025-01-09 Jonathan Wakely Backported from master: 2024-08-23 Jonathan Wakely * include/bits/alloc_traits.h: Improve doxygen docs for allocator_traits specializations. * include/bits/memory_resource.h: Likewise. 2025-01-09 Jonathan Wakely Backported from master: 2024-06-21 Jonathan Wakely * include/bits/memory_resource.h (polymorphic_allocator::destroy): Remove deprecated attribute. 2025-01-09 Jonathan Wakely Backported from master: 2024-05-15 Jonathan Wakely PR libstdc++/89624 * include/bits/atomic_base.h (memory_order): Use int as underlying type. * testsuite/29_atomics/atomic/89624.cc: New test. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-12 Jonathan Wakely * src/c++17/fs_dir.cc: Fix typo in comment. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-11 Jonathan Wakely * include/std/ostream (println): Pass stream's locale to std::format, as per LWG 4088. * testsuite/27_io/basic_ostream/print/1.cc: Check std::println with custom locale. Remove unused brit_punc class. 2025-01-09 Jonathan Wakely Backported from master: 2024-10-30 Jonathan Wakely * doc/xml/manual/using_exceptions.xml: Fix typos and grammatical errors. * doc/html/manual/using_exceptions.html: Regenerate. 2025-01-09 Jonathan Wakely Backported from master: 2024-05-14 Jonathan Wakely * doc/xml/manual/strings.xml: Clarify that GCC 4.5 added std::string::shrink_to_fit. * doc/html/manual/strings.html: Regenerate. 2025-01-09 Jonathan Wakely Backported from master: 2024-11-27 Jonathan Wakely * include/bits/c++config (__glibcxx_assert): Remove useless __builtin_expect from constexpr-only assertion. Improve comments. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-03 Jonathan Wakely PR libstdc++/108236 * include/pstl/glue_numeric_impl.h (exclusive_scan): Pass __init as rvalue. * include/pstl/numeric_impl.h (__brick_transform_scan): Do not write through __result until after reading through __first. Move __init into return value. (__pattern_transform_scan): Pass __init as rvalue. * include/std/numeric (exclusive_scan): Move construct instead of copy constructing. * testsuite/26_numerics/exclusive_scan/2.cc: New test. * testsuite/26_numerics/pstl/numeric_ops/108236.cc: New test. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-09 Jonathan Wakely PR libstdc++/117962 * include/debug/safe_container.h: Make allocator-extended move constructor a no-op during constant evaluation. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-11 Jonathan Wakely PR libstdc++/109517 PR libstdc++/109976 * include/debug/helper_functions.h (__valid_range_aux): Treat all input iterator ranges as valid during constant evaluation. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-11 Jonathan Wakely PR libstdc++/106212 * include/std/array (operator==): Use std::__equal_aux1 instead of std::equal. * testsuite/23_containers/array/comparison_operators/106212.cc: New test. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-11 Jonathan Wakely PR libstdc++/117966 * include/std/span (span(T (&)[N])): Do not delegate to constructor that performs redundant checks. (span(array&), span(const array&)): Likewise. (span(Range&&), span(const span&)): Likewise. * testsuite/23_containers/span/117966.cc: New test. 2025-01-09 Jonathan Wakely Backported from master: 2024-12-17 Jonathan Wakely PR libstdc++/118035 * include/bits/deque.tcc (_M_range_insert_aux): Return immediately if inserting an empty range. * testsuite/23_containers/deque/modifiers/insert/118035.cc: New test. 2025-01-09 Patrick Palka Backported from master: 2024-12-13 Patrick Palka PR libstdc++/112349 * include/bits/ranges_algo.h (__min_fn::operator()): Turn local object __tmp into a reference. * include/bits/ranges_util.h (__max_fn::operator()): Likewise. * testsuite/25_algorithms/max/constrained.cc (test04): New test. * testsuite/25_algorithms/min/constrained.cc (test04): New test. 2025-01-09 Patrick Palka Backported from master: 2024-11-14 Patrick Palka * include/std/ranges (keys_view): Adjust as per LWG 3563. (values_view): Likewise. * testsuite/std/ranges/adaptors/elements.cc (test08): New test. 2025-01-09 Patrick Palka Backported from master: 2024-10-29 Patrick Palka PR libstdc++/112641 * include/std/ranges (drop_view::begin): Reimplement const overload so that it's O(1) always. * testsuite/std/ranges/adaptors/drop.cc (test10): New test. 2025-01-09 Gerald Pfeifer Backported from master: 2024-08-17 Gerald Pfeifer * doc/xml/manual/abi.xml: Update reference to gcc.gnu.org/onlinedocs. * doc/xml/manual/concurrency_extensions.xml (interface): Ditto. * doc/xml/manual/extensions.xml: Ditto. * doc/xml/manual/parallel_mode.xml: Ditto. * doc/xml/manual/shared_ptr.xml: Ditto. * doc/xml/manual/using_exceptions.xml: Ditto. And change GNU GCC to GCC. * doc/html/index.html: Regenerate. * doc/html/manual/abi.html: Ditto. * doc/html/manual/ext_concurrency_impl.html: Ditto. * doc/html/manual/ext_demangling.html: Ditto. * doc/html/manual/memory.html: Ditto. * doc/html/manual/parallel_mode_design.html: Ditto. * doc/html/manual/parallel_mode_using.html: Ditto. * doc/html/manual/using_exceptions.html: Ditto. 2025-01-09 Jonathan Wakely Backported from master: 2025-01-08 Jonathan Wakely PR libstdc++/118093 * include/bits/atomic_futex.h (_M_load_and_test_until_impl): Return false for times before the epoch. * src/c++11/futex.cc (_M_futex_wait_until): Extend check for negative times to check for subsecond times. Add unlikely attribute. (_M_futex_wait_until_steady): Likewise. * testsuite/30_threads/future/members/118093.cc: New test. 2025-01-09 Jonathan Wakely Backported from master: 2025-01-08 Jonathan Wakely * include/bits/move.h (forward, move, move_if_noexcept, addressof): Add @since to Doxygen comments. (forward_like): Add Doxygen comment. 2025-01-09 Jonathan Wakely Backported from master: 2025-01-08 Jonathan Wakely * doc/xml/manual/evolution.xml: Replace invalid elements with . * doc/html/*: Regenerate. 2024-12-16 Jonathan Wakely Backported from master: 2024-12-07 Jonathan Wakely * include/std/format: Fix typo in Doxygen comment. 2024-12-02 Jonathan Wakely Backported from master: 2024-09-22 Jonathan Wakely * include/bits/stl_vector.h (operator<=>): Use constexpr instead of _GLIBCXX20_CONSTEXPR macro. 2024-12-02 Jason Merrill Backported from master: 2024-08-28 Jason Merrill * include/std/istream: Add cast to avoid -Wsign-compare. * include/std/stacktrace: Likewise. 2024-12-02 Jason Merrill Backported from master: 2024-08-28 Jason Merrill * testsuite/20_util/default_delete/void_neg.cc: Fix regexp quoting. 2024-12-02 Jason Merrill Backported from master: 2024-08-28 Jason Merrill * include/std/coroutine (coroutine_handle): Use nullptr instead of 0 as initializer for _M_fr_ptr. 2024-12-02 Jason Merrill Backported from master: 2024-08-28 Jason Merrill * include/decimal/decimal.h (_DEFINE_DECIMAL_BINARY_OP_WITH_INT): Remove redundant semicolons. 2024-12-02 Jonathan Wakely Backported from master: 2024-08-28 Jonathan Wakely * include/experimental/io_context: Remove name of unused parameter. * include/experimental/socket: Add [[maybe_unused]] attribute. 2024-12-02 Jonathan Wakely Backported from master: 2024-09-22 Jonathan Wakely * src/c++11/cxx11-ios_failure.cc (__iosfail_type_info): Unhide the three-arg overload of __do_upcast. 2024-12-02 Jonathan Wakely Backported from master: 2024-09-22 Jonathan Wakely * libsupc++/exception_ptr.h (__exception_ptr::_M_safe_bool_dummy): Remove __attribute__((const)) from function returning void. 2024-12-02 Jonathan Wakely Backported from master: 2024-08-28 Jonathan Wakely * include/std/ranges (to): Remove unused typedef. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-07 Jonathan Wakely * include/bits/hashtable.h (_M_insert_unique_node): Improve comment. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-14 Jonathan Wakely * include/bits/ranges_util.h (subrange::begin): Fix constraint, as per LWG 3589. * testsuite/std/ranges/subrange/lwg3589.cc: New test. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-01 Jonathan Wakely * include/bits/unordered_map.h: Check __glibcxx_node_extract and __glibcxx_unordered_map_try_emplace instead of __cplusplus. * include/bits/unordered_set.h: Check __glibcxx_node_extract instead of __cplusplus. 2024-12-02 Jonathan Wakely Backported from master: 2024-10-11 Jonathan Wakely * include/bits/cpp_type_traits.h (__is_byte): Guard with __glibcxx_byte macro instead of checking __cplusplus. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-14 Jonathan Wakely * include/bits/ranges_algo.h (__is_permutation_fn::operator()): Short-circuit for sized ranges with different sizes, as per LWG 3560. * include/bits/ranges_algobase.h (__equal_fn::operator()): Likewise. * include/bits/stl_algo.h (__is_permutation): Use if-constexpr for random access iterator branches. * include/bits/stl_algobase.h (__equal4): Likewise. * testsuite/25_algorithms/equal/lwg3560.cc: New test. * testsuite/25_algorithms/is_permutation/lwg3560.cc: New test. 2024-12-02 Jonathan Wakely Backported from master: 2024-10-15 Jonathan Wakely PR libstdc++/106676 * include/bits/iterator_concepts.h (__cpp17_fwd_iterator): Use is_reference instead of is_value_reference. rvalue references. * include/std/ranges (transform_view:__iter_cat::_S_iter_cat): Likewise. (zip_transform_view::__iter_cat::_S_iter_cat): Likewise. (adjacent_transform_view::__iter_cat::_S_iter_cat): Likewise. (join_with_view::__iter_cat::_S_iter_cat): Likewise. * testsuite/std/ranges/adaptors/transform.cc: Check iterator_category when the transformation function returns an rvalue reference type. 2024-12-02 Jonathan Wakely Backported from master: 2024-09-27 Jonathan Wakely * include/bits/basic_string.tcc (resize_for_overwrite): Fix -Wsign-compare warning. * include/bits/cow_string.h (resize_for_overwrite): Likewise. 2024-12-02 Jonathan Wakely Backported from master: 2024-10-27 Jonathan Wakely * include/bits/stl_bvector.h (emplace_back, emplace): Forward parameter pack to preserve value category. * testsuite/23_containers/vector/bool/emplace_rvalue.cc: New test. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-07 Jonathan Wakely * include/bits/hashtable.h: Fix spelling in comment. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-01 Jonathan Wakely * include/bits/hashtable.h: Improve comments. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-14 Jonathan Wakely PR libstdc++/117560 * include/bits/fs_dir.h (enable_borrowed_range, enable_view): Define specializations for directory iterators, as per LWG 3480. * testsuite/27_io/filesystem/iterators/lwg3480.cc: New test. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-13 Jonathan Wakely * testsuite/util/testsuite_performance.h (time_counter): Add comment about times. (time_counter::system_time): Use correct split value. 2024-12-02 Jonathan Wakely Backported from master: 2024-11-13 Jonathan Wakely * testsuite/util/testsuite_performance.h: Use __gnu_cxx::__is_single_threaded instead of __gthread_active_p(). 2024-12-02 Jonathan Wakely Backported from master: 2024-11-14 Jonathan Wakely * include/bits/stl_iterator.h (operator+): Add constraint to move_iterator operator. * testsuite/24_iterators/move_iterator/rel_ops_c++20.cc: 2024-12-02 Jonathan Wakely Backported from master: 2024-11-28 Jonathan Wakely PR libstdc++/117822 * include/std/stacktrace (stacktrace(stacktrace&&, const A&)): Fix typo in qualified-id for is_always_equal trait. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Test allocator-extended constructors and allocator propagation. 2024-12-02 Jonathan Wakely Backported from master: 2024-09-26 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::_Impl::_M_allocate): Do not assume allocators only throw std::bad_alloc. 2024-11-12 Jonathan Wakely * include/bits/unicode.h (_Utf_iterator::_M_read_utf16): Add parentheses. 2024-11-12 Jonathan Wakely PR libstdc++/117520 * include/std/text_encoding (aliases_view:_Iterator::operator+=): Fix typos that caused == to be used instead of =. (aliases_view::_Iterator): Fix friend declaration. * testsuite/std/text_encoding/members.cc: Adjust expected behaviour of invalid subscript. Add tests for other erroneous operations on iterators. 2024-11-11 Jonathan Wakely Backported from master: 2024-11-08 Jonathan Wakely * include/bits/hashtable_policy.h (_Insert_base::try_emplace): Do not define for C++11 and C++14. * include/debug/map.h (try_emplace): Use feature test macro. * include/debug/unordered_map (try_emplace): Likewise. * testsuite/17_intro/names.cc: Define try_emplace before C++17. 2024-11-04 Jakub Jelinek Backported from master: 2024-11-04 Jakub Jelinek PR libstdc++/117406 * testsuite/26_numerics/headers/cmath/117406.cc: Use std::numeric_limits::max() instead of INT_MAX. 2024-11-04 Jakub Jelinek Backported from master: 2024-11-02 Jakub Jelinek PR libstdc++/117406 * include/c_global/cmath (std::ilogb(_Float16), std::llrint(_Float16), std::llround(_Float16), std::lrint(_Float16), std::lround(_Float16)): Don't cast __builtin_* return to _Float16. (std::ilogb(__gnu_cxx::__bfloat16_t), std::llrint(__gnu_cxx::__bfloat16_t), std::llround(__gnu_cxx::__bfloat16_t), std::lrint(__gnu_cxx::__bfloat16_t), std::lround(__gnu_cxx::__bfloat16_t)): Don't cast __builtin_* return to __gnu_cxx::__bfloat16_t. * testsuite/26_numerics/headers/cmath/117406.cc: New test. 2024-11-04 Jakub Jelinek Backported from master: 2024-10-29 Jakub Jelinek PR libstdc++/117321 * include/c_global/cmath (nextafter(_Float16, _Float16)): Use if consteval rather than if (std::__is_constant_evaluated()) around the __builtin_nextafterf16 call. (nextafter(__gnu_cxx::__bfloat16_t, __gnu_cxx::__bfloat16_t)): Use if consteval rather than if (std::__is_constant_evaluated()) around the __builtin_nextafterf16b call. * testsuite/26_numerics/headers/cmath/117321.cc: New test. 2024-10-22 Patrick Palka Backported from master: 2024-10-05 Patrick Palka * include/bits/ranges_base.h (__distance_fn::operator()): Adjust iterator/sentinel overloads as per LWG 3664. * testsuite/24_iterators/range_operations/distance.cc: Test LWG 3664 example. 2024-10-22 Patrick Palka Backported from master: 2024-10-04 Patrick Palka * include/std/ranges (single_view::empty): Define as per LWG 4035. (iota_view::empty): Define as per LWG 4001. (lazy_split_view::_OuterIter::value_type): Remove default constructor and make other constructor private as per LWG 4013. (common_view::begin): Disable non-const overload for simple views as per LWG 4012. (common_view::end): Likewise. (adjacent_view::base): Define as per LWG 3848. (adjacent_transform_view::base): Likewise. (chunk_view::_InnerIter::iter_move): Define as per LWG 3851. (chunk_view::_InnerIter::itep_swap): Likewise. (slide_view::base): Define as per LWG 3848. (repeat_view): Adjust deduction guide as per LWG 4053. (_Repeat::operator()): Adjust single-parameter overload as per LWG 4054. * testsuite/std/ranges/adaptors/adjacent/1.cc: Verify existence of base member function. * testsuite/std/ranges/adaptors/adjacent_transform/1.cc: Likewise. * testsuite/std/ranges/adaptors/chunk/1.cc: Test LWG 3851 example. * testsuite/std/ranges/adaptors/slide/1.cc: Verify existence of base member function. * testsuite/std/ranges/iota/iota_view.cc: Test LWG 4001 example. * testsuite/std/ranges/repeat/1.cc: Test LWG 4053/4054 examples. 2024-10-22 Patrick Palka Backported from master: 2024-08-22 Patrick Palka * testsuite/25_algorithms/contains/1.cc: Verify value of __cpp_lib_ranges_contains. * testsuite/25_algorithms/find_last/1.cc: Verify value of __cpp_lib_ranges_find_last. * testsuite/25_algorithms/iota/1.cc: Verify value of __cpp_lib_ranges_iota. 2024-10-22 Patrick Palka Backported from master: 2024-08-22 Patrick Palka * include/bits/iterator_concepts.h (indirectly_unary_invocable): Relax as per P2997R1. (indirectly_regular_unary_invocable): Likewise. (indirect_unary_predicate): Likewise. (indirect_binary_predicate): Likewise. (indirect_equivalence_relation): Likewise. (indirect_strict_weak_order): Likewise. * include/bits/version.def (ranges): Update value for C++26. * include/bits/version.h: Regenerate. * testsuite/24_iterators/indirect_callable/p2997r1.cc: New test. * testsuite/std/ranges/version_c++23.cc: Remove. * testsuite/std/ranges/headers/ranges/synopsis.cc: Refine the __cpp_lib_ranges checks. 2024-10-22 Patrick Palka Backported from master: 2024-08-22 Patrick Palka * include/bits/iterator_concepts.h (__detail::__indirect_value): Define. (__indirect_value_t): Define as per P2609R3. (iter_common_reference_t): Adjust as per P2609R3. (indirectly_unary_invocable): Likewise. (indirectly_regular_unary_invocable): Likewise. (indirect_unary_predicate): Likewise. (indirect_binary_predicate): Likewise. (indirect_equivalence_relation): Likewise. (indirect_strict_weak_order): Likewise. (__detail::__projected::__type): Define member aliases __projected_Iter and __projected_Proj providing the template arguments of the current specialization. * include/bits/version.def (ranges): Update value. * include/bits/version.h: Regenerate. * testsuite/24_iterators/indirect_callable/p2609r3.cc: New test. * testsuite/std/ranges/version_c++23.cc: Update expected value of __cpp_lib_ranges macro. 2024-10-16 Jonathan Wakely Backported from master: 2024-10-16 Jonathan Wakely * python/libstdcxx/v6/printers.py (strip_fundts_namespace): New. (StdExpAnyPrinter, StdExpOptionalPrinter): Use it. 2024-10-16 Jonathan Wakely Backported from master: 2024-06-26 Jonathan Wakely PR libstdc++/90276 * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: Increase timeout for debug mode. * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: Likewise. * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: Likewise. * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: Likewise. * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: Likewise. * testsuite/25_algorithms/pstl/alg_sorting/set_symmetric_difference.cc: Likewise. 2024-10-15 Jonathan Wakely Backported from master: 2024-10-14 Jonathan Wakely * include/std/ranges (transform_view:_Iterator): Use const F& to determine value_type and iterator_category of _Iterator, as per LWG 3564. * testsuite/std/ranges/adaptors/transform.cc: Check value_type and iterator_category. 2024-10-15 Jonathan Wakely Backported from master: 2024-10-11 Jonathan Wakely PR libstdc++/117085 * include/bits/chrono_io.h (__formatter_chrono::_M_c): Add L option to format string. * testsuite/std/time/format.cc: Move to... * testsuite/std/time/format/format.cc: ...here. * testsuite/std/time/format/pr117085.cc: New test. 2024-10-15 Jonathan Wakely Backported from master: 2024-10-09 Jonathan Wakely * include/bits/chrono_io.h (__formatter_chrono::_M_c): Add [[unlikely]] attribute to condition for missing %c format in locale. Use %T instead of %H:%M:%S in fallback. 2024-10-15 Jonathan Wakely Backported from master: 2024-10-14 Jonathan Wakely PR libstdc++/117135 * config/locale/generic/time_members.cc (__timepunct::_M_initialize_timepunc): Set _M_date_time_format for C locale. Set %Ex formats to the same values as the %x formats. 2024-10-15 Jonathan Wakely Backported from master: 2024-10-14 Jonathan Wakely PR libstdc++/117094 * include/bits/ranges_algobase.h (__fill_fn): Use std::move for iterator that might not be copyable. * testsuite/25_algorithms/fill/constrained.cc: Check non-copyable iterator with sized sentinel. 2024-10-03 Jonathan Wakely Backported from master: 2024-08-23 Jonathan Wakely PR c++/116369 * include/debug/safe_base.h (_Safe_sequence_base::_M_iterators): Add mutable specifier. (_Safe_sequence_base::_M_const_iterators): Likewise. 2024-10-03 Kim Gräsman Backported from master: 2024-08-28 Kim Gräsman * include/bits/cpp_type_traits.h: Improve doxygen file docs. 2024-10-03 Kim Gräsman Backported from master: 2024-08-28 Kim Gräsman * config/cpu/aarch64/opt/ext/opt_random.h: Improve doxygen file docs. * config/cpu/i486/opt/ext/opt_random.h: Likewise. 2024-10-03 Jonathan Wakely Backported from master: 2024-08-28 Jonathan Wakely * configure.ac: Fix check for O_NONBLOCK. * config.h.in: Regenerate. * configure: Regenerate. 2024-10-03 Jonathan Wakely Backported from master: 2024-09-26 Jonathan Wakely PR libstdc++/116857 * libsupc++/guard.cc (__cxa_guard_acquire): Remove _GLIBCXX_NOTHROW to match declaration in . 2024-10-03 Jonathan Wakely Backported from master: 2024-06-27 Jonathan Wakely PR libstdc++/37475 * config/locale/gnu/codecvt_members.cc (Guard): New RAII type. (do_out, do_in): Return partial if the destination is empty but the source is not. Use Guard to restore locale on scope exit. Return immediately on any conversion error. (do_encoding, do_max_length, do_length): Use Guard. * testsuite/22_locale/codecvt/in/char/37475.cc: New test. * testsuite/22_locale/codecvt/in/wchar_t/37475.cc: New test. * testsuite/22_locale/codecvt/out/char/37475.cc: New test. * testsuite/22_locale/codecvt/out/wchar_t/37475.cc: New test. 2024-10-03 Jonathan Wakely Backported from master: 2024-10-02 Jonathan Wakely * config/locale/dragonfly/time_members.cc (__timepunct::_M_initialize_timepunc) (__timepunct::_M_initialize_timepunc): Set _M_date_time_format for C locale. Set %Ex formats to the same values as the %x formats. * config/locale/generic/time_members.cc: Likewise. * config/locale/gnu/time_members.cc: Likewise. * testsuite/22_locale/time_get/get/char/5.cc: New test. * testsuite/22_locale/time_get/get/wchar_t/5.cc: New test. 2024-10-03 Jonathan Wakely Backported from master: 2024-09-26 Jonathan Wakely * include/bits/cow_string.h (__resize_for_overwrite): Add inline keyword to function with always_inline attribute. 2024-10-03 Jonathan Wakely Backported from master: 2024-06-26 Jonathan Wakely PR libstdc++/90276 * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc [_GLIBCXX_DEBUG]: Add xfail-run-if for debug mode. * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc [_GLIBCXX_DEBUG]: Reduce size of test data. * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: Likewise. * testsuite/25_algorithms/pstl/alg_sorting/set_util.h: Likewise. 2024-10-03 Jonathan Wakely Backported from master: 2024-09-22 Jonathan Wakely * include/std/format (__format::__is_formattable_integer): New variable template and specializations. (template struct formatter): Replace constraints on first arg with __is_formattable_integer. * testsuite/std/format/formatter/requirements.cc: Check that std::formatter specializations for char8_t and const int are disabled. 2024-10-03 Jonathan Wakely Backported from master: 2024-09-22 Jonathan Wakely PR libstdc++/116755 * include/bits/chrono_io.h (formatter>::format): Cast negative integral durations to unsigned rep. * testsuite/20_util/duration/io.cc: Test the most negative integer durations. 2024-09-23 Jonathan Wakely Backported from master: 2024-09-20 Jonathan Wakely PR libstdc++/116529 * include/bits/unique_ptr.h (unique_ptr(auto_ptr&&)): Use pointer instead of T*. * testsuite/20_util/unique_ptr/creation/116529.cc: New test. 2024-09-23 Jonathan Wakely Backported from master: 2024-09-22 Jonathan Wakely PR libstdc++/116754 * include/bits/ranges_algobase.h (__copy_or_move): Fix order of arguments to __memcpyable. 2024-09-23 Jonathan Wakely Backported from master: 2024-09-20 Jonathan Wakely PR libstdc++/116777 * doc/xml/manual/using.xml: Document features that are not supported for the gcc4-compatible ABI. * doc/html/manual/using_dual_abi.html: Regenerate. 2024-09-23 Jonathan Wakely Backported from master: 2024-08-23 Jonathan Wakely PR libstdc++/108619 * include/bits/alloc_traits.h (__allocator_traits_base): Add variable templates for detecting whether the allocator has a construct member, or if placement new can be used instead. (allocator_traits::__construct_helper): Remove. (allocator_traits::__has_construct): Remove. (allocator_traits::construct): Use 'if constexpr' instead of dispatching to overloads constrained with enable_if. (allocator_traits>::construct): Use _Construct if construct_at is not supported. Use __is_nothrow_new_constructible for noexcept-specifier. (allocator_traits>::construct): Use __is_nothrow_new_constructible for noexcept-specifier. * include/bits/new_allocator.h (construct): Likewise. * include/ext/malloc_allocator.h (construct): Likewise. * include/std/type_traits (__is_nothrow_new_constructible): New variable template. * testsuite/20_util/allocator/89510.cc: Adjust expected results. * testsuite/ext/malloc_allocator/89510.cc: Likewise. * testsuite/ext/new_allocator/89510.cc: Likewise. * testsuite/20_util/allocator_traits/members/108619.cc: New test. 2024-09-11 Jonathan Wakely Backported from master: 2024-09-10 Jonathan Wakely PR libstdc++/116159 * include/std/iostream (ios_base_library_init): Only define for ELF targets. * src/c++98/ios_init.cc (ios_base_library_init): Likewise. 2024-09-11 Jonathan Wakely Backported from master: 2024-09-10 Jonathan Wakely PR libstdc++/116641 * include/bits/basic_string.h (operator=(basic_string&&)): Call _M_assign instead of assign. * testsuite/21_strings/basic_string/allocator/116641.cc: New test. 2024-09-10 Jonathan Wakely Backported from master: 2024-06-26 Jonathan Wakely * src/c++20/tzdb.cc (minmax_year, minmax_year2): Remove. (years_from_to): New class replacing minmax_year and minmax_year2. (format_abbrev_str, select_std_or_dst_abbrev): Move earlier in the file. Handle "-" for letters. (ZoneInfo::to): Use format_abbrev_str to expand %z. (ZoneInfo::set_abbrev): Remove exception. Change parameter from reference to value. (operator>>(istream&, Rule&)): Do not clear letters when it contains "-". (time_zone::_M_get_sys_info): Add missing logic to find the Rule in effect before the time point. * testsuite/std/time/tzdb/1.cc: Adjust for vanguard format using "GMT" as the Zone name, not as a Link to "Etc/GMT". * testsuite/std/time/time_zone/sys_info_abbrev.cc: New test. 2024-09-08 Patrick Palka Backported from master: 2024-08-03 Patrick Palka * include/bits/move.h (__like_impl): New metafunction. (__like_t): Redefine in terms of __like_impl. (forward_like): Redefine in terms of __like_t. * testsuite/20_util/forward_like/2_neg.cc: Don't expect error outside the immediate context anymore. 2024-09-04 Jonathan Wakely Backported from master: 2024-09-03 Jonathan Wakely * src/c++17/fs_ops.cc (auto_win_file_handle): Add error_code& member and set it if CreateFileW or GetFileInformationByHandle fails. (fs::equiv_files) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Simplify control flow. (fs::hard_link_count) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Clear ec on success. * testsuite/27_io/filesystem/operations/hard_link_count.cc: Check error handling. 2024-09-04 Jonathan Wakely Backported from master: 2024-07-30 Jonathan Wakely * src/c++17/fs_ops.cc (auto_win_file_handle): Change constructor parameter from const path& to const wchar_t*. (fs::equiv_files): New function. (fs::equivalent): Use equiv_files. * src/filesystem/ops-common.h (fs::equiv_files): Declare. (do_copy_file): Use equiv_files. * src/filesystem/ops.cc (fs::equiv_files): Define. (fs::copy, fs::equivalent): Use equiv_files. * testsuite/27_io/filesystem/operations/copy.cc: Test overwriting directory contents recursively. * testsuite/27_io/filesystem/operations/copy_file.cc: Test overwriting existing files. 2024-09-04 Lennox Shou Hao Ho Backported from master: 2024-07-30 Lennox Shou Hao Ho PR libstdc++/113663 * src/c++17/fs_ops.cc (fs::equivalent): Moved helper class auto_handle to anonymous namespace as auto_win_file_handle. (fs::hard_link_count): Changed Windows implementation to use information provided by GetFileInformationByHandle which is more reliable. * testsuite/27_io/filesystem/operations/hard_link_count.cc: New test. 2024-09-04 Jonathan Wakely Backported from master: 2024-09-03 Jonathan Wakely PR libstdc++/116549 * include/bits/stl_iterator.h (disable_sized_sentinel_for): Define specialization for two move_iterator types, as per LWG 3736. * testsuite/24_iterators/move_iterator/lwg3736.cc: New test. 2024-09-04 Dhruv Chawla Backported from master: 2024-09-03 Dhruv Chawla * include/std/deque: Define macro __glibcxx_want_allocator_traits_is_always_equal. * include/std/forward_list: Likewise. * include/std/list: Likewise. * include/std/map: Likewise. * include/std/scoped_allocator: Likewise. * include/std/set: Likewise. * include/std/string: Likewise. * include/std/unordered_map: Likewise. * include/std/unordered_set: Likewise. * include/std/vector: Likewise. * testsuite/20_util/headers/memory/version.cc: New test. * testsuite/20_util/scoped_allocator/version.cc: Likewise. * testsuite/21_strings/headers/string/version.cc: Likewise. * testsuite/23_containers/deque/version.cc: Likewise. * testsuite/23_containers/forward_list/version.cc: Likewise. * testsuite/23_containers/list/version.cc: Likewise. * testsuite/23_containers/map/version.cc: Likewise. * testsuite/23_containers/set/version.cc: Likewise. * testsuite/23_containers/unordered_map/version.cc: Likewise. * testsuite/23_containers/unordered_set/version.cc: Likewise. * testsuite/23_containers/vector/version.cc: Likewise. 2024-09-04 Jonathan Wakely Backported from master: 2024-08-21 Jonathan Wakely PR libstdc++/116381 * include/std/variant (variant): Fix conditions for static_assert to match the spec. * testsuite/20_util/variant/types_neg.cc: New test. 2024-08-03 Jonathan Wakely Backported from master: 2024-06-21 Jonathan Wakely * include/bits/version.def (chrono): Add cxx11abi = yes. * include/bits/version.h: Regenerate. * testsuite/std/time/syn_c++20.cc: Adjust expected value for the feature test macro. 2024-08-02 Patrick Palka Backported from master: 2024-07-25 Patrick Palka PR libstdc++/116038 * include/std/functional (_Bind_front::operator()): Use __like_t instead of std::forward when forwarding __self. (_Bind_back::operator()): Likewise. * include/std/ranges (_Partial::operator()): Likewise. (_Pipe::operator()): Likewise. * testsuite/20_util/function_objects/bind_back/116038.cc: New test. * testsuite/20_util/function_objects/bind_front/116038.cc: New test. * testsuite/std/ranges/adaptors/116038.cc: New test. 2024-08-01 Jonathan Wakely Backported from master: 2024-05-22 Jonathan Wakely * include/bits/locale_classes.h (locale::combine) (locale::name, locale::operator==, locale::operator!=) (locale::operator(), locale::classic): Add nodiscard attribute. * include/bits/locale_classes.tcc (has_facet, use_facet): Likewise. * testsuite/22_locale/locale/cons/12438.cc: Add dg-warning for nodiscard diagnostic. * testsuite/22_locale/locale/cons/2.cc: Cast use_facet expression to void, to suppress diagnostic. * testsuite/22_locale/locale/cons/unicode.cc: Likewise. * testsuite/22_locale/locale/operations/2.cc: Add dg-warning. 2024-08-01 Deev Patel Backported from master: 2024-06-08 Deev Patel Jonathan Wakely * include/bits/atomic_base.h (__atomic_impl::__clear_padding): Add missing constexpr specifier. * testsuite/29_atomics/atomic_float/constinit.cc: New test. 2024-08-01 Jonathan Wakely Backported from master: 2024-06-21 Jonathan Wakely * testsuite/util/testsuite_allocator.h (tracker_allocator): Initialize base class in copy constructor. 2024-08-01 Jonathan Wakely Backported from master: 2024-06-12 Jonathan Wakely PR libstdc++/115399 * include/tr2/dynamic_bitset (operator>>=): Remove redundant call to _M_do_sanitize. * include/tr2/dynamic_bitset.tcc (_M_do_left_shift): Zero out low bits in words that should no longer be populated. (_M_do_right_shift): Likewise for high bits. * testsuite/tr2/dynamic_bitset/pr115399.cc: New test. 2024-08-01 Jonathan Wakely Backported from master: 2024-07-25 Jonathan Wakely * include/std/format (basic_format_args): Remove default constructor, as per LWG 4106. * testsuite/std/format/arguments/args.cc: Check it isn't default constructible. 2024-08-01 Jonathan Wakely Backported from master: 2024-07-10 Jonathan Wakely PR libstdc++/114387 * include/std/format (basic_format_context): Define copy operations as deleted, as per LWG 4061. * testsuite/std/format/context.cc: New test. 2024-08-01 Jonathan Wakely Backported from master: 2024-06-21 Jonathan Wakely * include/std/any (any_cast(any*), any_cast(const any*)): Add static assertion to reject void types, as per LWG 3305. * testsuite/20_util/any/misc/lwg3305.cc: New test. 2024-08-01 Jonathan Wakely Backported from master: 2024-06-08 Jonathan Wakely * include/std/algorithm: Define __glibcxx_want_ranges. * testsuite/25_algorithms/headers/algorithm/synopsis.cc: Check feature test macro in C++20 mode. 2024-08-01 Jonathan Wakely Backported from master: 2024-07-10 Jonathan Wakely PR libstdc++/115854 * include/bits/stl_bvector.h (_Bvector_base): Convert allocator to rebound type explicitly. * testsuite/23_containers/vector/allocator/115854.cc: New test. * testsuite/23_containers/vector/bool/allocator/115854.cc: New test. 2024-08-01 Jonathan Wakely Backported from master: 2024-06-13 Jonathan Wakely * include/bits/ranges_base.h (const_iterator_t): Change preprocessor condition to use __glibcxx_ranges_as_const. (const_sentinel_t, range_const_reference_t): Likewise. (__access::__possibly_const_range, cbegin, cend, crbegin) (crend, cdata): Likewise. * include/bits/stl_iterator.h (iter_const_reference_t) (basic_const_iterator, const_iterator, const_sentinel) (make_const_iterator): Likewise. 2024-08-01 Jonathan Wakely Backported from master: 2024-07-06 Jonathan Wakely * include/std/variant (_Variant_storage::_M_reset): Use __unlikely__ form of attribute instead of unlikely. 2024-08-01 Jonathan Wakely Backported from master: 2024-07-24 Jonathan Wakely PR libstdc++/116070 * include/std/istream: Check feature test macro before using is_class_v and is_same_v. * include/std/ostream: Likewise. 2024-08-01 Jonathan Wakely Backported from master: 2024-07-24 Jonathan Wakely PR libstdc++/116070 * include/bits/stl_bvector.h: Check feature test macro before using is_default_constructible_v. 2024-08-01 Release Manager * GCC 14.2.0 released. 2024-07-23 Jonathan Wakely Backported from master: 2024-07-23 Jonathan Wakely * src/c++23/print.cc (__open_terminal): Use [[maybe_unused]] on parameter. 2024-07-23 Detlef Vollmann Backported from master: 2024-07-23 Detlef Vollmann PR libstdc++/115482 * src/c++23/print.cc (__open_terminal) [__AVR__]: Do not use isatty. 2024-07-12 Jonathan Wakely Backported from master: 2024-06-13 Jonathan Wakely PR libstdc++/113376 * include/pstl/pstl_config.h: Use #if instead of #ifdef to test the _PSTL_USAGE_WARNINGS macro. 2024-07-12 Jonathan Wakely Backported from master: 2024-06-21 Jonathan Wakely PR libstdc++/115522 * include/std/array (to_array): Workaround the fact that std::is_trivial is not sufficient to check that a type is trivially default constructible and assignable. * testsuite/23_containers/array/creation/115522.cc: New test. 2024-07-09 Jonathan Wakely Backported from master: 2024-07-08 Jonathan Wakely PR libstdc++/115807 * include/c_compatibility/stdatomic.h (_Atomic): Ensure it refers to std::atomic in the global namespace. * testsuite/29_atomics/headers/stdatomic.h/115807.cc: New test. 2024-07-09 Jonathan Wakely Backported from master: 2024-06-28 Jonathan Wakely PR libstdc++/115585 * src/c++11/assert_fail.cc (__glibcxx_assert_fail): Add definition for non-verbose builds. 2024-06-28 Jonathan Wakely Backported from master: 2024-06-27 Jonathan Wakely PR libstdc++/115668 * include/bits/chrono_io.h (formatter::format): Do not use chrono::abs. * testsuite/20_util/duration/io.cc: Check formatting a duration with unsigned rep. 2024-06-27 Jonathan Wakely Backported from master: 2024-06-25 Jonathan Wakely * doc/xml/faq.xml: Replace viewcvs links with cgit links. * doc/xml/manual/allocator.xml: Likewise. * doc/xml/manual/mt_allocator.xml: Likewise. * doc/html/*: Regenerate. 2024-06-27 Alexandre Oliva Backported from master: 2024-06-27 Alexandre Oliva PR libstdc++/115454 * testsuite/experimental/simd/pr115454_find_last_set.cc: Defer to check_vect_support_and_set_flags's default dg-do action. 2024-06-25 Jonathan Wakely * doc/xml/manual/status_cxx1998.xml: Remove confusing "not in any particular release" text. * doc/xml/manual/status_cxx2011.xml: Likewise. * doc/xml/manual/status_cxx2014.xml: Likewise. * doc/xml/manual/status_cxx2017.xml: Likewise. * doc/xml/manual/status_cxx2020.xml: Likewise. * doc/xml/manual/status_cxx2023.xml: Likewise. * doc/xml/manual/status_cxxtr1.xml: Likewise. * doc/xml/manual/status_cxxtr24733.xml: Likewise. * doc/html/manual/status.html: Regenerate. 2024-06-21 Matthias Kretz Backported from master: 2024-06-21 Matthias Kretz PR libstdc++/115575 * testsuite/experimental/simd/pr115454_find_last_set.cc: Require avx512f_runtime. Don't memcpy fixed_size masks. 2024-06-20 Matthias Kretz Backported from master: 2024-06-20 Matthias Kretz PR libstdc++/115454 * include/experimental/bits/simd_x86.h (_S_not_equal_to): Use neq comparison instead of bitwise negation after eq. (_S_find_last_set): Clear unused high bits before computing bit_width. * testsuite/experimental/simd/pr115454_find_last_set.cc: New test. 2024-06-14 Jonathan Wakely Backported from master: 2024-06-14 Jonathan Wakely * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Fix declaration of posix_memalign. 2024-06-10 Matthias Kretz Backported from master: 2024-06-04 Matthias Kretz PR libstdc++/115308 * include/experimental/bits/simd.h (__int_for_sizeof): Remove special cases for __clang__. (_SimdWrapper): Change constructor overload set to allow conversion from vector types with integral conversions via bit reinterpretation. 2024-06-10 Matthias Kretz Backported from master: 2024-05-29 Matthias Kretz PR libstdc++/115247 * include/experimental/bits/simd.h (__as_vector): Don't use vector_size(8) on __i386__. (__vec_shuffle): Never return MMX vectors, widen to 16 bytes instead. (concat): Fix padding calculation to pick up widening logic from __as_vector. 2024-06-10 Matthias Kretz Backported from master: 2024-05-13 Matthias Kretz PR libstdc++/114958 * include/experimental/bits/simd.h (__as_vector): Return scalar simd as one-element vector. Return vector from single-vector fixed_size simd. (__vec_shuffle): New. (__extract_part): Adjust return type signature. (split): Use __extract_part for any split into non-fixed_size simds. (concat): If the return type stores a single vector, use __vec_shuffle (which calls __builtin_shufflevector) to produce the return value. * include/experimental/bits/simd_builtin.h (__shift_elements_right): Removed. (__extract_part): Return single elements directly. Use __vec_shuffle (which calls __builtin_shufflevector) to for all non-trivial cases. * include/experimental/bits/simd_fixed_size.h (__extract_part): Return single elements directly. * testsuite/experimental/simd/pr114958.cc: New test. 2024-06-04 Jonathan Wakely Backported from master: 2024-06-04 Jonathan Wakely PR libstdc++/115335 * include/std/span (span::at): Guard with feature test macro. 2024-06-04 Rainer Orth Backported from master: 2024-05-29 Rainer Orth PR libstdc++/111641 * src/libbacktrace/Makefile.am (AM_CFLAGS): Add -funwind-tables. * src/libbacktrace/Makefile.in: Regenerate. * testsuite/19_diagnostics/stacktrace/current.cc (dg-options): Add -funwind-tables. * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise. * testsuite/19_diagnostics/stacktrace/hash.cc: Likewise. * testsuite/19_diagnostics/stacktrace/output.cc: Likewise. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise. 2024-06-03 François Dumont Backported from master: 2024-06-03 François Dumont PR libstdc++/109849 * include/bits/vector.tcc (std::vector<>::_M_range_insert(iterator, _FwdIt, _FwdIt, forward_iterator_tag))[__cplusplus < 201103L]: Add __builtin_unreachable expression to tell the compiler that the allocated buffer is large enough to receive current elements plus the elements of the range to insert. 2024-06-01 Jonathan Wakely Backported from master: 2024-06-01 Jonathan Wakely PR libstdc++/115269 * doc/xml/manual/using.xml: Replace link to gcc-4.3.2 docs. Replace list of -std=... options with a single entry for -std. * doc/html/manual/using.html: Regenerate. 2024-05-28 Jonathan Wakely Backported from master: 2024-05-22 Jonathan Wakely PR libstdc++/114940 * include/bits/version.def (generator): Depend on __cpp_sized_deallocation. * include/bits/version.h: Regenerate. * include/std/stacktrace (_GLIBCXX_SIZED_DELETE): New macro. (basic_stacktrace::_Impl::_M_deallocate): Use it. 2024-05-22 Jonathan Wakely Backported from master: 2024-05-22 Jonathan Wakely PR libstdc++/115099 * include/bits/std_thread.h: Declare formatter as friend of thread::id. * include/std/thread (operator<<): Convert non-void pointers to void pointers for output. (formatter): Add constraint that thread::native_handle_type is a pointer or integer. (formatter::format): Reimplement without basic_ostringstream. * testsuite/30_threads/thread/id/output.cc: Check output compiles before has been included. 2024-05-17 Jonathan Wakely Backported from master: 2024-05-17 Jonathan Wakely PR libstdc++/115119 * include/bits/unicode.h (_Iterator::operator++(int)): Fix typo in increment expression. * testsuite/ext/unicode/grapheme_view.cc: Check post-increment on view's iterator. 2024-05-14 Jonathan Wakely PR libstdc++/115015 * src/c++23/print.cc (__open_terminal(streambuf*)) [!__cpp_rtti]: Do not use dynamic_cast. 2024-05-14 Jonathan Wakely Backported from master: 2024-05-14 Jonathan Wakely PR libstdc++/115063 * include/std/stacktrace (basic_stacktrace::max_size): Fix typo in reference to _M_alloc member. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Check max_size() compiles. 2024-05-14 Jonathan Wakely Backported from master: 2024-05-01 Jonathan Wakely PR libstdc++/114891 * include/std/generator: Check feature test macro before using is_pointer_interconvertible_v. 2024-05-14 Jonathan Wakely Backported from master: 2024-05-07 Jonathan Wakely * testsuite/util/testsuite_abi.cc: Update latest versions to new versions that should be used in future. 2024-05-14 Jonathan Wakely Backported from master: 2024-05-07 Jonathan Wakely * include/bits/unicode.h (_Unicode_view::_M_read_utf8): Ensure count of characters consumed is correct when the end of the input is reached unexpectedly. * testsuite/ext/unicode/view.cc: Test incomplete UTF-8 sequences. 2024-05-14 Jonathan Wakely Backported from master: 2024-05-07 Jonathan Wakely PR libstdc++/114866 * include/bits/out_ptr.h [!_GLIBCXX_HOSTED]: Don't refer to shared_ptr, __shared_ptr or __is_shred_ptr. * testsuite/20_util/headers/memory/114866.cc: New test. 2024-05-07 Release Manager * GCC 14.1.0 released. 2024-05-03 Andreas Schwab * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update. 2024-04-30 Jonathan Wakely Backported from master: 2024-04-30 Jonathan Wakely PR libstdc++/114863 * include/std/format (__formatter_fp::format): Only use _M_localized for finite values. * testsuite/std/format/functions/format.cc: Check localized formatting of NaN and initiny. 2024-04-29 Rainer Orth * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate. * config/abi/post/i386-solaris/amd64/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt: Likewise. 2024-04-29 Rainer Orth Backported from master: 2024-04-29 Rainer Orth * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate. * config/abi/post/i386-solaris/amd64/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt: Likewise. 2024-04-26 Jonathan Wakely * doc/html/manual/status.html: Regenerate. * doc/xml/manual/status_cxx1998.xml: Replace references to mainline GCC. * doc/xml/manual/status_cxx2011.xml: Likewise. * doc/xml/manual/status_cxx2014.xml: Likewise. * doc/xml/manual/status_cxx2017.xml: Likewise. * doc/xml/manual/status_cxx2020.xml: Likewise. * doc/xml/manual/status_cxx2023.xml: Likewise. * doc/xml/manual/status_cxxtr1.xml: Likewise. * doc/xml/manual/status_cxxtr24733.xml: Likewise. 2024-04-25 Jonathan Wakely * scripts/run_doxygen: Rename man pages for nested types. 2024-04-25 Jonathan Wakely * include/std/chrono (tzdb_list): Fix typo in Doxygen comment. 2024-04-25 Jonathan Wakely * scripts/run_doxygen: Adjust sed pattern to match '\fR' for new man output that Doxygen 1.10 generates. 2024-04-25 Jonathan Wakely * doc/doxygen/stdheader.cc (init_map): Add missing headers. * doc/doxygen/user.cfg.in (EXCLUDE): Exclude generated files for std::format and std::text_encoding. 2024-04-25 Jonathan Wakely * include/std/variant: Add comment to #include. 2024-04-22 Matthias Kretz PR libstdc++/114803 * include/experimental/bits/simd_builtin.h (_SimdBase2::operator __vector_type_t): There is no __builtin() function in _SimdWrapper, instead use its conversion operator. * testsuite/experimental/simd/pr114803_vecbuiltin_cvt.cc: New test. 2024-04-22 Matthias Kretz * include/experimental/bits/simd.h: Ignore -Wnarrowing for arm_neon.h. (__int_for_sizeof): Replace tautological compare with checking for invalid template parameter value. * include/experimental/bits/simd_builtin.h (__extract_part): Remove tautological compare by combining two static_assert. 2024-04-22 Jakub Jelinek * testsuite/17_intro/names.cc (d, f): Undefine on s390*-linux*. * testsuite/17_intro/headers/c++1998/all_attributes.cc (packed): Don't define on s390. * testsuite/17_intro/headers/c++2011/all_attributes.cc (packed): Likewise. * testsuite/17_intro/headers/c++2014/all_attributes.cc (packed): Likewise. * testsuite/17_intro/headers/c++2017/all_attributes.cc (packed): Likewise. * testsuite/17_intro/headers/c++2020/all_attributes.cc (packed): Likewise. 2024-04-19 Jonathan Wakely * include/bits/refwrap.h (operator<=>): Simplify constraints. 2024-04-19 Jonathan Wakely PR libstdc++/114770 * src/c++20/tzdb.cc (do_locate_zone): Support links that have another link as their target. * testsuite/std/time/tzdb/1.cc: Check that all zones and links can be found by locate_zone. * testsuite/std/time/tzdb/links.cc: New test. 2024-04-18 Alexandre Oliva * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Disable SRA. 2024-04-18 Alexandre Oliva * testsuite/20_util/from_chars/8.cc: Skip float128_t testing on aarch64-vxworks. * testsuite/20_util/to_chars/float128_c++23.cc: Xfail run on aarch64-vxworks. 2024-04-18 Alexandre Oliva * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Define on VxWorks non-RTP. 2024-04-17 Jonathan Wakely * include/std/ostream (println(ostream&)): Define new overload. * include/std/print (println(FILE*), println()): Likewise. * testsuite/27_io/basic_ostream/print/2.cc: New test. * testsuite/27_io/print/1.cc: Remove unused header. * testsuite/27_io/print/3.cc: New test. 2024-04-17 Matthias Kretz * include/experimental/bits/numeric_traits.h: Add include guard. 2024-04-17 Matthias Kretz PR libstdc++/114750 * include/experimental/bits/simd_builtin.h (_SimdImplBuiltin::_S_load, _S_store): Fall back to copying scalars if the memory type cannot be vectorized for the target. 2024-04-16 Jonathan Wakely * config/locale/dragonfly/numeric_members.cc: Fix typos in comments. * config/locale/gnu/numeric_members.cc: Likewise. 2024-04-15 Jonathan Wakely * doc/xml/manual/abi.xml: Replace "" with "14.1.0". * doc/html/manual/abi.html: Regenerate. 2024-04-15 Jonathan Wakely * include/bits/refwrap.h (reference_wrapper): Add comparison operators as proposed by P2944R3. * include/bits/version.def (reference_wrapper): Define. * include/bits/version.h: Regenerate. * include/std/functional: Enable feature test macro. * testsuite/20_util/reference_wrapper/compare.cc: New test. 2024-04-15 Jonathan Wakely PR libstdc++/113386 * include/bits/stl_pair.h (operator==, operator<=>): Support heterogeneous comparisons, as per LWG 3865. * testsuite/20_util/pair/comparison_operators/lwg3865.cc: New test. 2024-04-15 Jonathan Wakely PR libstdc++/93672 * src/c++98/istream.cc (istream::ignore(streamsize, int_type)): Treat all negative delimiter values as eof(). * testsuite/27_io/basic_istream/ignore/char/93672.cc: New test. * testsuite/27_io/basic_istream/ignore/wchar_t/93672.cc: New test. 2024-04-15 Andreas Schwab * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. 2024-04-13 H.J. Lu * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated. 2024-04-11 Jakub Jelinek * doc/xml/manual/abi.xml: Add latest library versions. * doc/html/manual/abi.html: Regenerate. 2024-04-11 Jakub Jelinek * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update. * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update. 2024-04-11 Jonathan Wakely PR libstdc++/114692 * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Move new exports for __basic_file::native_handle to ... (GLIBCXX_3.4.33): ... here. Adjust to not match wchar_t specialization, which isn't used. * testsuite/util/testsuite_abi.cc: Add GLIBCXX_3.4.33 and update latest version check. 2024-04-11 Jakub Jelinek * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update. * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update. 2024-04-10 Jonathan Wakely * testsuite/27_io/manipulators/extended/get_time/char/2.cc: Adjust input string so that it matches %a with or without a trailing period. * testsuite/std/time/year_month_day/io.cc: Adjust expected format for %x in the fr_FR locale. 2024-04-10 Jonathan Wakely * src/c++17/fs_ops.cc (remove_all) [__FreeBSD__ || __DragonFly__]: Check for EMLINK as well as ELOOP. [__NetBSD__]: Check for EFTYPE as well as ELOOP. 2024-04-09 Jonathan Wakely PR libstdc++/114633 * include/bits/chrono_io.h (_Parser::operator()) <'S'>: Use stream extraction if std::from_chars is not available. 2024-04-08 Jonathan Wakely PR libstdc++/114519 * include/bits/unicode.h (_Utf8_view) [!__cpp_char8_t]: Define using char instead of char8_t. * testsuite/ext/unicode/view.cc: Use u8""sv literals to create string views, instead of std::u8string_view. 2024-04-08 Jonathan Wakely * testsuite/20_util/integer_comparisons/equal_neg.cc: Use no-opts selector for errors that depend on -fchar8_t. * testsuite/20_util/integer_comparisons/greater_equal_neg.cc: Likewise. * testsuite/20_util/integer_comparisons/greater_neg.cc: Likewise. * testsuite/20_util/integer_comparisons/in_range_neg.cc: Likewise. * testsuite/20_util/integer_comparisons/less_equal_neg.cc: Likewise. * testsuite/20_util/integer_comparisons/less_neg.cc: Likewise. * testsuite/20_util/integer_comparisons/not_equal_neg.cc: Likewise. * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: Skip if -fno-char8_t is used. * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc: Likewise. * testsuite/27_io/basic_ostream/inserters_character/char/deleted.cc: Likewise. * testsuite/27_io/basic_ostream/inserters_character/wchar_t/deleted.cc: Likewise. * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: Use char for u8 literal if char8_t is not available. * testsuite/27_io/headers/iosfwd/synopsis.cc: Check __cpp_char8_t. * testsuite/29_atomics/atomic_integral/wait_notify.cc: Likewise. * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: Remove check for _GLIBCXX_USE_CHAR8_T. 2024-04-08 Jonathan Wakely * testsuite/20_util/from_chars/1_neg.cc: Add char8_t cases, using a struct of that name if -fno-char8_t is active. * testsuite/20_util/from_chars/1_c++20_neg.cc: Removed. 2024-04-03 Jonathan Wakely PR libstdc++/104606 * include/std/optional (operator<=>(const optional&, const U&)): Reverse order of three_way_comparable_with template arguments. * testsuite/20_util/optional/relops/104606.cc: New test. 2024-04-02 Jonathan Wakely PR libstdc++/114519 * include/bits/unicode.h (_Utf8_view): Guard with check for char8_t being enabled. (__literal_encoding_is_unicode): Guard use of char8_t with check for it being enabled. * testsuite/std/format/functions/114519.cc: New test. 2024-04-02 Patrick Palka * include/std/ranges (ranges::__detail::_Empty): Rename to ... (ranges::__detail::_Absent): ... this. Turn into a template parameterized by the absent type _Tp and discriminator _Disc. (ranges::__detail::__maybe_present_t): Add an optional discriminator parameter. (slide_view::_M_cached_begin): Pass a discriminator argument to __maybe_present_t. (slide_view::_M_cached_end): Likewise. * testsuite/std/ranges/adaptors/sizeof.cc: Verify the size of slide_view is 3 instead 4 pointers. 2024-04-02 Jakub Jelinek * acinclude.m4: Fix duplicated words; file file -> file can. * configure.host: Fix duplicated words; the the -> the. 2024-03-29 Arsen Arsenović * testsuite/24_iterators/range_generators/01.cc: Drop GCC Runtime Library Exception. * testsuite/24_iterators/range_generators/02.cc: Drop GCC Runtime Library Exception. * testsuite/24_iterators/range_generators/copy.cc: Drop GCC Runtime Library Exception. * testsuite/24_iterators/range_generators/except.cc: Drop GCC Runtime Library Exception. * testsuite/24_iterators/range_generators/subrange.cc: Drop GCC Runtime Library Exception. * testsuite/24_iterators/range_generators/synopsis.cc: Drop GCC Runtime Library Exception. * testsuite/24_iterators/range_generators/iter_deref_return.cc: Drop GCC Runtime Library Exception from the "You should have received a copy" paragraph. 2024-03-27 Matthias Kretz * include/experimental/bits/simd_x86.h (_S_masked_unary): Cast inputs < 16 bytes to 16 byte vectors before calling the right subtraction builtin. Before returning, truncate to the return vector type. 2024-03-27 Matthias Kretz * include/experimental/bits/simd_x86.h (_S_masked_unary): Call the 4- and 8-byte variants of __builtin_ia32_subp[ds] without rounding direction argument. 2024-03-27 Srinivas Yadav Singanaboina * include/Makefile.am: Add simd_sve.h. * include/Makefile.in: Add simd_sve.h. * include/experimental/bits/simd.h: Add new SveAbi. * include/experimental/bits/simd_builtin.h: Use __no_sve_deduce_t to support existing Neon Abi. * include/experimental/bits/simd_converter.h: Convert sequentially when sve is available. * include/experimental/bits/simd_detail.h: Define sve specific macro. * include/experimental/bits/simd_math.h: Fallback frexp to execute sequntially when sve is available, to handle fixed_size_simd return type that always uses sve. * include/experimental/simd: Include bits/simd_sve.h. * testsuite/experimental/simd/tests/bits/main.h: Enable testing for sve128, sve256, sve512. * include/experimental/bits/simd_sve.h: New file. 2024-03-26 Arsen Arsenović * include/std/generator (generator::_Iterator::operator*): Fix return type. * testsuite/24_iterators/range_generators/iter_deref_return.cc: New test. 2024-03-26 Arsen Arsenović * include/std/generator: Fix _V badname. 2024-03-26 Jonathan Wakely * testsuite/19_diagnostics/stacktrace/current.cc: Check for __cpp_lib_stacktrace instead of check for stacktrace ET. * testsuite/19_diagnostics/stacktrace/entry.cc: Likewise. * testsuite/19_diagnostics/stacktrace/hash.cc: Likewise. * testsuite/19_diagnostics/stacktrace/output.cc: Likewise. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: Likewise. * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise. * testsuite/19_diagnostics/stacktrace/version.cc: Likewise. * testsuite/23_containers/vector/debug/assign4_backtrace_neg.cc: Likewise. * testsuite/lib/libstdc++.exp (check_effective_target_stacktrace): Remove. 2024-03-26 Jonathan Wakely * testsuite/lib/dg-options.exp (dg-require-cpp-feature-test): New proc. * testsuite/lib/libstdc++.exp (check_v3_target_cpp_feature_test): New proc. * testsuite/std/text_encoding/cons.cc: Use new directive to skip the test if the __cpp_lib_text_encoding feature test macro is not defined. * testsuite/std/text_encoding/requirements.cc: Likewise. 2024-03-25 Jonathan Wakely * testsuite/std/text_encoding/requirements.cc: #undef the correct macro. 2024-03-23 Jonathan Wakely * include/std/format (formatter): Disable specializations that would allow sequences of narrow characters to be formatted as wchar_t without conversion, as per LWG 3944. * testsuite/std/format/formatter/lwg3944.cc: New test. 2024-03-23 Jonathan Wakely * include/bits/utility.h (__is_in_place_index_v): New variable template. * include/std/variant (__not_in_place_tag): Define in terms of variable templates not a class template. 2024-03-23 Jonathan Wakely PR libstdc++/114400 * include/std/string_view (operator==): Use std::type_identity_t in C++20 instead of our own __type_identity_t. 2024-03-22 Jonathan Wakely PR libstdc++/114401 * include/bits/hashtable.h (_Hashtable::_M_reinsert_node): Call release() on node handle instead of just zeroing its pointer. (_Hashtable::_M_reinsert_node_multi): Likewise. (_Hashtable::_M_merge_unique): Likewise. (_Hashtable::_M_merge_multi): Likewise. * include/bits/node_handle.h (_Node_handle_common::release()): New member function. (_Node_handle_common::_Optional_alloc::_M_empty): Remove unnecessary union member. (_Node_handle_common): Declare _Hashtable as a friend. * include/bits/stl_tree.h (_Rb_tree::_M_reinsert_node_unique): Call release() on node handle instead of just zeroing its pointer. (_Rb_tree::_M_reinsert_node_equal): Likewise. (_Rb_tree::_M_reinsert_node_hint_unique): Likewise. (_Rb_tree::_M_reinsert_node_hint_equal): Likewise. * testsuite/23_containers/multiset/modifiers/114401.cc: New test. * testsuite/23_containers/set/modifiers/114401.cc: New test. * testsuite/23_containers/unordered_multiset/modifiers/114401.cc: New test. * testsuite/23_containers/unordered_set/modifiers/114401.cc: New test. 2024-03-22 Jonathan Wakely PR libstdc++/113841 * include/bits/allocator.h (allocator): Add default constructor to partial specializations for cv-qualified types. * include/bits/stl_vector.h (_Vector_impl::_Vector_impl()): Constrain so that it's only present if the allocator is default constructible. * include/bits/stl_bvector.h (_Bvector_impl::_Bvector_impl()): Likewise. * testsuite/23_containers/vector/cons/113841.cc: New test. 2024-03-22 Jonathan Wakely * include/bits/stl_construct.h (destroy_at, construct_at): Guard with feature test macros instead of just __cplusplus. 2024-03-22 Jonathan Wakely * include/bits/version.def (generator, tuple_like): Move earlier in the file. * include/bits/version.h: Regenerate. 2024-03-22 Jonathan Wakely PR libstdc++/114394 * include/std/functional (bind): Use __invoke_result_t instead of result_of::type. * include/std/type_traits (__invoke_result_t): New alias template. * testsuite/20_util/bind/ref_neg.cc: Adjust prune pattern. 2024-03-20 François Dumont * include/bits/version.def (null_iterators): Remove extra_cond. * include/bits/version.h: Regenerate. 2024-03-19 Jonathan Wakely PR libstdc++/114359 * include/bits/random.tcc (binomial_distribution::param_type): Ensure arithmetic is done as type double. * testsuite/26_numerics/random/binomial_distribution/114359.cc: New test. 2024-03-19 Jonathan Wakely PR libstdc++/101228 * include/pstl/parallel_backend_tbb.h (TBB_SUPPRESS_DEPRECATED_MESSAGES): Define before including then undef afterwards. 2024-03-19 Jonathan Wakely * include/Makefile.am [MAINTAINER_MODE]: Add target to automatically update . * include/Makefile.in: Regenerate. 2024-03-19 Jonathan Wakely * doc/xml/manual/build_hacking.xml: Document generated files. Update list of convenience libraries and sub-directories under the src directory. * doc/html/*: Regenerate. 2024-03-19 Jonathan Wakely * include/bits/text_encoding-data.h: Regenerate. * include/bits/unicode-data.h: Regenerate. * scripts/gen_text_encoding_data.py: Fix header of generated file to name the correct script. 2024-03-19 Jonathan Wakely * testsuite/util/pstl/test_utils.h: Fix typos in comments. 2024-03-19 Jonathan Wakely PR libstdc++/114367 * include/bits/stl_bvector.h (_M_allocate): Use allocator's construct function to begin lifetime of words. 2024-03-19 Iain Sandoe * testsuite/lib/dg-options.exp (atomic_link_flags): Emit a -B option for the path to the uninstalled libatomic. 2024-03-19 Iain Sandoe * testsuite/lib/libstdc++.exp (v3_target_compile): Instead of /dev/null, use a temporary file for test executables on Darwin. 2024-03-18 François Dumont * include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_can_advance): Accept 0 offset advance on value-initialized iterator. * testsuite/23_containers/vector/debug/n3644.cc: New test case. 2024-03-18 François Dumont * include/debug/safe_local_iterator.tcc (_Safe_local_iterator::_M_valid_range): Add _M_value_initialized and _M_singular checks. * testsuite/23_containers/unordered_set/debug/114316.cc: New test case. 2024-03-17 François Dumont PR libstdc++/114316 * include/debug/safe_iterator.tcc (_Safe_iterator<>::_M_valid_range): First check if both iterators are value-initialized before checking if singular. * testsuite/23_containers/set/debug/114316.cc: New test case. * testsuite/23_containers/vector/debug/114316.cc: New test case. 2024-03-14 Jonathan Wakely PR libstdc++/114325 * include/std/format (_Scanner::_M_scan): Pass correct length to __to_chars_10_impl. * testsuite/std/format/functions/format.cc: Check negative integers with empty format-spec. 2024-03-14 Jonathan Wakely * include/bits/stl_algo.h (find_end, all_of, none_of, any_of) (find_if_not, is_partitioned, partition_point, remove) (remove_if, unique, lower_bound, upper_bound, equal_range) (binary_search, includes, is_sorted, is_sorted_until, minmax) (minmax_element, is_permutation, clamp, find_if, find_first_of) (adjacent_find, count, count_if, search, search_n, min_element) (max_element): Add nodiscard attribute. * include/bits/stl_algobase.h (min, max, lower_bound, equal) (lexicographical_compare, lexicographical_compare_three_way) (mismatch): Likewise. * include/bits/stl_heap.h (is_heap, is_heap_until): Likewise. * testsuite/25_algorithms/equal/debug/1_neg.cc: Add dg-warning. * testsuite/25_algorithms/equal/debug/2_neg.cc: Likewise. * testsuite/25_algorithms/equal/debug/3_neg.cc: Likewise. * testsuite/25_algorithms/find_first_of/concept_check_1.cc: Likewise. * testsuite/25_algorithms/is_permutation/2.cc: Likewise. * testsuite/25_algorithms/lexicographical_compare/71545.cc: Likewise. * testsuite/25_algorithms/lower_bound/33613.cc: Likewise. * testsuite/25_algorithms/lower_bound/debug/irreflexive.cc: Likewise. * testsuite/25_algorithms/lower_bound/debug/partitioned_neg.cc: Likewise. * testsuite/25_algorithms/lower_bound/debug/partitioned_pred_neg.cc: Likewise. * testsuite/25_algorithms/minmax/3.cc: Likewise. * testsuite/25_algorithms/search/78346.cc: Likewise. * testsuite/25_algorithms/search_n/58358.cc: Likewise. * testsuite/25_algorithms/unique/1.cc: Likewise. * testsuite/25_algorithms/unique/11480.cc: Likewise. * testsuite/25_algorithms/upper_bound/33613.cc: Likewise. * testsuite/25_algorithms/upper_bound/debug/partitioned_neg.cc: Likewise. * testsuite/25_algorithms/upper_bound/debug/partitioned_pred_neg.cc: Likewise. * testsuite/ext/concept_checks.cc: Likewise. * testsuite/ext/is_heap/47709.cc: Likewise. * testsuite/ext/is_sorted/cxx0x.cc: Likewise. 2024-03-14 xndcn * include/bits/atomic_base.h (__atomic_float::__atomic_float(Fp)): Clear padding. * testsuite/29_atomics/atomic_float/compare_exchange_padding.cc: New test. 2024-03-14 Jonathan Wakely PR libstdc++/66146 * doc/xml/manual/status_cxx2011.xml: Remove mention of Linux in note about std::call_once. * doc/xml/manual/status_cxx2014.xml: Likewise. * doc/xml/manual/status_cxx2017.xml: Likewise. * doc/html/manual/status.html: Regenerate. 2024-03-14 Jonathan Wakely * doc/xml/manual/status_cxx2023.xml: Update C++23 status table. * doc/html/manual/status.html: Regenerate. * include/bits/version.def: Fix typo in comment. 2024-03-13 Jonathan Wakely * testsuite/libstdc++-prettyprinters/cxx11.cc: Move custom_cat to namespace scope. 2024-03-13 Jonathan Wakely * doc/xml/manual/debug.xml: Improve docs on debug builds and using ASan. Mention _GLIBCXX_ASSERTIONS. Reorder sections to put the most relevant ones first. * doc/xml/manual/using.xml: Add comma. * doc/html/*: Regenerate. 2024-03-13 Jonathan Wakely * doc/xml/manual/debug.xml: Document that concept checking might be removed in future. * doc/xml/manual/extensions.xml: Likewise. 2024-03-09 Jonathan Wakely PR libstdc++/114240 * include/bits/chrono_io.h (_Parser::operator()): Assume hours(0) for a time_point, so that a time is not required to be present. * testsuite/std/time/parse/114240.cc: New test. 2024-03-09 Jonathan Wakely PR libstdc++/114279 * include/bits/chrono_io.h (_Parser::_M_is_leap_second): New data member. (_Parser::_M_reserved): Reserve padding bits for future use. (_Parser::operator()): Set _M_is_leap_second if %S reads 60s. (from_stream): Only allow _M_is_leap_second for utc_time and local_time. Adjust arithmetic for utc_time so that leap seconds are preserved. Use time_point_cast to convert to a possibly lower-precision result type. * testsuite/std/time/parse.cc: Move to ... * testsuite/std/time/parse/parse.cc: ... here. * testsuite/std/time/parse/114279.cc: New test. 2024-03-07 Jonathan Wakely * include/bits/chrono_io.h (_Parser::operator()): Use std::from_chars to parse fractional seconds. 2024-03-07 Jonathan Wakely PR libstdc++/114244 * include/bits/chrono_io.h (_Parser::operator()): Remove redundant uses of duration_cast. Use chrono::round to convert long double value to durations with integer representations. Check represenation type when deciding whether to skip parsing fractional seconds. * testsuite/20_util/duration/114244.cc: New test. * testsuite/20_util/duration/io.cc: Check that a floating-point duration with ratio<1> precision can be parsed. 2024-03-07 Jonathan Wakely PR libstdc++/114103 * include/bits/version.def (atomic_lock_free_type_aliases): Add extra_cond to check for at least one always-lock-free type. * include/bits/version.h: Regenerate. * include/std/atomic (atomic_signed_lock_free) (atomic_unsigned_lock_free): Only use always-lock-free types. * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): Don't use atomic counter if lock-free aliases aren't available. * testsuite/29_atomics/atomic/lock_free_aliases.cc: XFAIL for targets without lock-free word-size compare_exchange. 2024-03-07 Jonathan Wakely * include/std/chrono (__get_leap_second_info): Update expiry time for hardcoded list of leap seconds. * testsuite/std/time/tzdb/leap_seconds.cc: Update comment. 2024-03-07 Jonathan Wakely * testsuite/23_containers/deque/allocator/default_init.cc: Use std::memset instead of __builtin_memset. * testsuite/23_containers/forward_list/allocator/default_init.cc: Likewise. * testsuite/23_containers/list/allocator/default_init.cc: Likewise. * testsuite/23_containers/map/allocator/default_init.cc: Likewise. * testsuite/23_containers/set/allocator/default_init.cc: Likewise. * testsuite/23_containers/unordered_map/allocator/default_init.cc: Likewise. * testsuite/23_containers/unordered_set/allocator/default_init.cc: Likewise. * testsuite/23_containers/vector/allocator/default_init.cc: Likewise. * testsuite/23_containers/vector/bool/allocator/default_init.cc: Likewise. * testsuite/29_atomics/atomic/compare_exchange_padding.cc: Likewise. * testsuite/util/atomic/wait_notify_util.h: Likewise. 2024-03-07 Jonathan Wakely * include/std/format (_Arg_store::_S_make_elt): Add two static_assert checks to give more user-friendly error messages. * testsuite/lib/prune.exp (libstdc++-dg-prune): Prune another form of "in requirements with" note. * testsuite/std/format/arguments/args_neg.cc: Check for user-friendly diagnostics for non-formattable types. * testsuite/std/format/string_neg.cc: Likewise. 2024-03-04 Jonathan Wakely PR libstdc++/114147 * include/std/tuple (tuple::tuple(allocator_arg_t, const Alloc&)): Add missing overload of allocator-extended default constructor. (tuple::tuple(allocator_arg_t, const Alloc&)): Likewise. * testsuite/20_util/tuple/cons/114147.cc: New test. 2024-02-29 Jonathan Wakely * include/std/format (basic_format_arg::handle::__maybe_const_t): Fix condition to check if const type is formattable. (basic_format_arg::handle::handle(T&)): Remove redundant static_assert. * testsuite/std/format/formatter/basic.cc: New test. 2024-02-29 Jonathan Wakely PR libstdc++/113960 * include/bits/stl_algobase.h (__is_byte_iter): Replace with ... (__memcmp_ordered_with): New concept. (lexicographical_compare_three_way): Use __memcmp_ordered_with instead of __is_byte_iter. Use correct length for memcmp. * testsuite/25_algorithms/lexicographical_compare_three_way/113960.cc: New test. 2024-02-28 Jonathan Wakely PR libstdc++/114152 * include/experimental/scope (scope_exit scope_fail): Make destructor unconditionally noexcept. (scope_sucess): Fix noexcept-specifier. * testsuite/experimental/scopeguard/114152.cc: New test. 2024-02-28 Jonathan Wakely * doc/xml/manual/appendix_contributing.xml: Change URLs to use https. * doc/html/manual/*: Regenerate. 2024-02-28 Jonathan Wakely * doc/xml/manual/appendix_contributing.xml: Replace outdated info on ChangeLog entries. * doc/html/manual/appendix_contributing.html: Regenerate. 2024-02-28 Jonathan Wakely * include/bits/stl_bvector.h (vector::at): Add nodiscard. * include/bits/stl_vector.h (vector::at): Likewise. (operator==, operator<=>, operator<, operator!=, operator>) (operator<=, operator>=): Likewise. * include/debug/vector (operator==, operator<=>, operator<) (operator!=, operator>, operator<=, operator>=): Likewise. * testsuite/23_containers/vector/nodiscard.cc: New test. 2024-02-28 Jonathan Wakely * include/bits/atomic_base.h (operator|, operator&): Add noexcept. * include/bits/fs_fwd.h (operator&, operator|, operator^) (operator~): Add nodiscard to overloads for copy_options, perms, perm_options, and directory_options. * include/bits/ios_base.h (operator&, operator|, operator^) (operator~): Add nodiscard and noexcept to overloads for _Ios_Fmtflags, _Ios_Openmode, and _Ios_Iostate. (operator|=, operator&=, operator^=): Add constexpr for C++14. * include/bits/regex_constants.h (operator&, operator|, operator^) (operator~): Add nodiscard and noexcept to overloads for syntax_option_type and match_flag_type. (operator|=, operator&=, operator^=): Add noexcept. * include/std/charconv (operator&, operator|, operator^) (operator~): Add nodiscard to overloads for chars_format. * include/std/future (operator&, operator|, operator^) (operator~): Add nodiscard for overloads for launch. (operator&=, operator|=, operator^=): Add constexpr for C++14. * include/experimental/bits/fs_fwd.h (operator&, operator|) (operator^, operator~): Add nodiscard to overloads for copy_options, perms, and directory_options. * testsuite/27_io/ios_base/types/fmtflags/bitmask_operators.cc: Add dg-warning for nodiscard warnings. * testsuite/27_io/ios_base/types/iostate/bitmask_operators.cc: Likewise. * testsuite/27_io/ios_base/types/openmode/bitmask_operators.cc: Likewise. * testsuite/27_io/filesystem/operations/bitmask_types.cc: New test. 2024-02-28 Jonathan Wakely * testsuite/27_io/basic_ostream/print/1.cc: Check error handling. * testsuite/27_io/print/1.cc: Likewise. 2024-02-28 Jonathan Wakely * include/std/ostream (vprint_unicode) [__CYGWIN__]: Use POSIX code path for Cygwin instead of Windows. * include/std/print (vprint_unicode) [__CYGWIN__]: Likewise. * testsuite/27_io/basic_ostream/print/1.cc: Only add -lstdc++exp for *-*-mingw* targets. * testsuite/27_io/print/1.cc: Likewise. 2024-02-28 Jonathan Wakely * include/bits/alloc_traits.h: Include for __make_move_if_noexcept_iterator. 2024-02-28 Jonathan Wakely * include/std/stacktrace: Add nodiscard attribute to all functions without side effects. 2024-02-20 François Dumont * include/bits/stl_algobase.h (std::__niter_wrap): Add a call to std::__niter_base on res iterator. 2024-02-19 Iain Sandoe Jonathan Wakely PR target/112397 * configure: Regenerate. * configure.ac: Detect if we are building for Darwin. * libsupc++/Makefile.am: If we are building for Darwin, then suppress hot/cold partitioning for the array allocators. * libsupc++/Makefile.in: Regenerated. 2024-02-17 François Dumont * include/bits/stl_algobase.h (std::__niter_base): Redefine the overload definitions for __gnu_debug::_Safe_iterator. * include/debug/safe_iterator.tcc (std::__niter_base): Adapt declarations. 2024-02-16 Jonathan Wakely PR libstdc++/87744 PR libstdc++/113961 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line number. 2024-02-16 Jonathan Wakely PR libstdc++/87744 PR libstdc++/113931 * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line number. 2024-02-16 Jonathan Wakely * doc/xml/manual/debug_mode.xml: Update docs for backtraces. * doc/html/manual/debug_mode_using.html: Regenerate. 2024-02-16 Jonathan Wakely * doc/xml/manual/test.xml: Fix spelling of elements. * doc/html/manual/test.html: Regenerate. 2024-02-15 Jonathan Wakely PR libstdc++/113806 * include/std/bitset (bitset::operator>>=): Remove redundant call to _M_do_sanitize. 2024-02-15 Jonathan Wakely PR libstdc++/113807 * include/std/bitset (bitset::set()): Use memset instead of a loop over the individual words. 2024-02-15 Jonathan Wakely PR libstdc++/113811 * include/bits/stl_algo.h (__rotate): Use unsigned values for division. 2024-02-15 Jonathan Wakely PR libstdc++/99117 * include/std/valarray (valarray::operator=(const _Expr&)): Use loop to copy instead of __valarray_copy with _Array. * testsuite/26_numerics/valarray/99117.cc: New test. 2024-02-15 Jonathan Wakely * src/c++20/tzdata.zi: Import new file from 2024a release. * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds) Update expiry date for leap seconds list. 2024-02-15 Jonathan Wakely PR libstdc++/87744 * include/bits/random.h [!__SIZEOF_INT128__] (_Select_uint_least_t): Define specialization for 64-bit generators with non-power-of-two modulus and large constants. (__mod): Use if constexpr unconditionally. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line number. * testsuite/26_numerics/random/linear_congruential_engine/87744.cc: New test. 2024-02-14 Gerald Pfeifer * doc/xml/manual/status_cxx2023.xml: Fix C++ item p2442 to be version 1. * doc/html/manual/status.html: Regenerate. 2024-02-12 Paul Keir PR libstdc++/113294 * include/bits/basic_string.h (basic_string::operator=): Use _M_use_local_data() instead of _M_local_buf on the moved-from string. * testsuite/21_strings/basic_string/modifiers/constexpr.cc (test_move): New test. 2024-02-09 Ken Matsui * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_SAME): Removed. * include/std/type_traits (is_same): Use _GLIBCXX_USE_BUILTIN_TRAIT instead of _GLIBCXX_HAVE_BUILTIN_IS_SAME. (is_same_v): Likewise. 2024-02-08 Jonathan Wakely * include/bits/shared_ptr_atomic.h: Fix typo in comment. 2024-02-08 Jonathan Wakely PR libstdc++/100147 * include/bits/gslice.h (operator=): Add comment about lack of self-assignment check. 2024-02-08 Jonathan Wakely * include/tr2/type_traits (bases, direct_bases): Use __has_builtin to check if required built-ins are supported. 2024-02-07 Patrick Palka PR testsuite/113710 PR c++/113814 * include/bits/stl_pair.h (tuple_element): Add forward declaration of the partial specialization for tuple. 2024-02-06 Torbjörn SVENSSON * testsuite/lib/libstdc++.exp: Use "nul" for Windows, "/dev/null" for other environments. 2024-02-04 Jonathan Wakely * include/std/format (__format::_Spec::_M_reserved): Define new bit-field members to reserve padding bits for future extensions. 2024-02-04 Jonathan Wakely * src/experimental/Makefile.am: Use libstdc++fsconvenience.a instead of libstdc++fs.a. * src/experimental/Makefile.in: Regenerate. * src/filesystem/Makefile.am: Build libstdc++fsconvenience.a as well. * src/filesystem/Makefile.in: Regenerate. 2024-02-04 Jonathan Wakely * include/bits/text_encoding-data.h: Regenerate. * include/bits/unicode-data.h: Regenerate. * scripts/gen_text_encoding_data.py: Add copyright and license text to the output. 2024-02-02 Jonathan Wakely PR libstdc++/113335 * include/bits/std_function.h (__function_guide_helper): Add partial specialization for explicit object member functions, as per LWG 3617. * testsuite/20_util/function/cons/deduction_c++23.cc: Check explicit object member functions. * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc: Likewise. 2024-02-02 Jonathan Wakely * testsuite/17_intro/names.cc [_AIX]: Undefine "u". 2024-02-02 Jonathan Wakely * include/experimental/internet (network_v6::network): Define. (network_v6::hosts): Finish implementing. (network_v6::to_string): Do not concatenate std::string to arbitrary std::basic_string specialization. * testsuite/experimental/net/internet/network/v6/cons.cc: New test. 2024-02-02 Jonathan Wakely PR libstdc++/90276 * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: Fix comparison function to use less-than instead of equality. 2024-02-02 Jonathan Wakely PR libstdc++/90276 * testsuite/util/pstl/test_utils.h (reverse_invoker): Do not use perfect forwarding for iterator arguments. 2024-02-02 Jonathan Wakely * include/std/string_view (basic_string_view(R&&)): Remove constraint that traits_type must be the same, as per LWG 3857. * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Explicit conversion between different specializations should be allowed. * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise. 2024-02-02 Jonathan Wakely * include/std/syncstream (basic_osyncstream::operator=): Remove noexcept, as per LWG 3867. 2024-02-02 Jonathan Wakely * include/std/generator (promise_type::yield_value): Remove noexcept from fourth overload, as per LWG 3894. 2024-02-01 Patrick Palka PR libstdc++/113309 PR libstdc++/109203 * include/bits/ranges_util.h (__detail::__pair_like): Don't define in C++23 mode. (__detail::__pair_like_convertible_from): Adjust as per P2165R4. (__detail::__is_subrange): Moved from . (__detail::__is_tuple_like_v): Likewise. * include/bits/stl_iterator.h: Include for C++23. (__different_from): Move to . (__iter_key_t): Adjust for C++23 as per P2165R4. (__iter_val_t): Likewise. * include/bits/stl_pair.h (pair, array): Forward declare. (get): Forward declare all overloads relevant to P2165R4 tuple-like constructors. (__is_tuple_v): Define for C++23. (__is_tuple_like_v): Define for C++23. (__tuple_like): Define for C++23 as per P2165R4. (__pair_like): Define for C++23 as per P2165R4. (__eligibile_tuple_like): Define for C++23. (__eligibile_pair_like): Define for C++23. (pair::_S_constructible_from_pair_like): Define for C++23. (pair::_S_convertible_from_pair_like): Define for C++23. (pair::_S_dangles_from_pair_like): Define for C++23. (pair::pair): Define overloads taking a tuple-like type for C++23 as per P2165R4. (pair::_S_assignable_from_tuple_like): Define for C++23. (pair::_S_const_assignable_from_tuple_like): Define for C++23. (pair::operator=): Define overloads taking a tuple-like type for C++23 as per P2165R4. * include/bits/utility.h (ranges::__detail::__is_subrange): Moved from . * include/bits/version.def (tuple_like): Define for C++23. * include/bits/version.h: Regenerate. * include/std/concepts (__different_from): Moved from . (ranges::__swap::__adl_swap): Clarify which __detail namespace. * include/std/map (__cpp_lib_tuple_like): Define C++23. * include/std/ranges (__detail::__is_subrange): Moved to . (__detail::__is_subrange): Moved to (__detail::__has_tuple_element): Adjust for C++23 as per P2165R4. (__detail::__tuple_or_pair): Remove as per P2165R4. Replace all uses with plain tuple as per P2165R4. * include/std/tuple (__cpp_lib_tuple_like): Define for C++23. (__tuple_like_tag_t): Define for C++23. (__tuple_cmp): Forward declare for C++23. (_Tuple_impl::_Tuple_impl): Define overloads taking __tuple_like_tag_t and a tuple-like type for C++23. (_Tuple_impl::_M_assign): Likewise. (tuple::__constructible_from_tuple_like): Define for C++23. (tuple::__convertible_from_tuple_like): Define for C++23. (tuple::__dangles_from_tuple_like): Define for C++23. (tuple::tuple): Define overloads taking a tuple-like type for C++23 as per P2165R4. (tuple::__assignable_from_tuple_like): Define for C++23. (tuple::__const_assignable_from_tuple_like): Define for C++23. (tuple::operator=): Define overloads taking a tuple-like type for C++23 as per P2165R4. (tuple::__tuple_like_common_comparison_category): Define for C++23. (tuple::operator<=>): Define overload taking a tuple-like type for C++23 as per P2165R4. (array, get): Forward declarations moved to . (tuple_cat): Constrain with __tuple_like for C++23 as per P2165R4. (apply): Likewise. (make_from_tuple): Likewise. (__tuple_like_common_reference): Define for C++23. (basic_common_reference): Adjust as per P2165R4. (__tuple_like_common_type): Define for C++23. (common_type): Adjust as per P2165R4. * include/std/unordered_map (__cpp_lib_tuple_like): Define for C++23. * include/std/utility (__cpp_lib_tuple_like): Define for C++23. * testsuite/std/ranges/zip/1.cc (test01): Adjust to handle pair and 2-tuple interchangeably. (test05): New test. * testsuite/20_util/pair/p2165r4.cc: New test. * testsuite/20_util/tuple/p2165r4.cc: New test. 2024-02-01 Patrick Palka * include/bits/stl_pair.h (pair::_S_const_assignable): Define, factored out from ... (pair::operator=): ... the constraints of the const overloads. 2024-02-01 Jonathan Wakely * include/bits/version.tpl: Do not use def-file-line for each macro being defined. * include/bits/version.h: Regenerate. 2024-02-01 Jonathan Wakely * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust dg-error pattern. * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc: Likewise. * testsuite/25_algorithms/equal/debug/constexpr_neg.cc: Likewise. * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc: Likewise. * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc: Likewise. * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc: Likewise. * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc: Likewise. * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc: Likewise. * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc: Likewise. 2024-02-01 Jonathan Wakely * include/experimental/internet (network_v4::to_string()): Remove lambda and use of resize_and_overwrite. 2024-01-31 Jonathan Wakely * acinclude.m4 (GLIBCXX_CHECK_TEXT_ENCODING): Use if needed for newlocale. * configure: Regenerate. * src/c++26/text_encoding.cc: Use . 2024-01-31 Jonathan Wakely Ewan Higgs * include/bits/text_encoding-data.h: Regenerate. * scripts/gen_text_encoding_data.py: Add extra_aliases dict containing "ASCII". * testsuite/std/text_encoding/cons.cc: Check "ascii" is known. 2024-01-31 Jonathan Wakely * doc/xml/manual/using.xml: Update tables of supported headers. * doc/html/*: Regenerate. 2024-01-31 Jonathan Wakely * include/std/bitset (_Base_bitset::_M_do_to_ullong): Avoid -Wshift-count-overflow warning. 2024-01-30 Jonathan Wakely * testsuite/std/time/clock/gps/io.cc: Fix expected result in assertion and call test_format() from main. 2024-01-29 François Dumont * doc/xml/manual/debug_mode.xml: Link against libstdc++exp.a to use _GLIBCXX_DEBUG_BACKTRACE macro. 2024-01-24 Huanghui Nie Théo Papadopoulo * include/bits/hashtable.h (_Hahstable<>::_M_remove_bucket_begin): Remove _M_before_begin check and cleanup implementation. 2024-01-22 Jonathan Wakely * testsuite/std/time/clock/file/io.cc: Fix expected result in assertion and call test_format() from main. 2024-01-21 Jonathan Wakely PR libstdc++/113500 * include/bits/chrono_io.h (__formatter_chrono::_M_S): Fix printing of subseconds with floating-point rep. (__formatter_chrono::_M_format_to_ostream): Do not write time_point specializations directly to the ostream. (formatter, C>::parse): Do not allow an empty chrono-spec if the type fails to meet the constraints for writing to an ostream with operator<<. * testsuite/std/time/clock/file/io.cc: Check formatting non-integral times with empty chrono-specs. * testsuite/std/time/clock/gps/io.cc: Likewise. * testsuite/std/time/clock/utc/io.cc: Likewise. * testsuite/std/time/hh_mm_ss/io.cc: Likewise. 2024-01-21 Jonathan Wakely * include/bits/chrono.h (__file_clock::from_sys) (__file_clock::to_sys, __file_clock::_S_from_sys) (__file_clock::_S_to_sys): Use common_type for return type. * testsuite/std/time/clock/file/members.cc: Check round trip conversion for time with lower precision that seconds. 2024-01-21 Jonathan Wakely PR libstdc++/113512 * include/std/format (__formatter_fp::format): Fix logic for alternate forms. * testsuite/std/format/functions/format.cc: Check buggy cases of alternate forms with g presentation type. 2024-01-20 Marek Polacek PR c++/111410 * include/std/ranges: Add #pragma to disable -Wdangling-reference with std::ranges::views::__adaptor::operator|. 2024-01-19 Jonathan Wakely * include/std/format (_Spec::_M_parse_fill_and_align): Do not use CTAD for _Utf32_view. 2024-01-19 Jonathan Wakely PR libstdc++/108822 * include/std/tuple (__glibcxx_no_dangling_refs) [C++17]: Fix wrong fold-operator. * testsuite/20_util/tuple/dangling_ref.cc: Check tuples with one element and three elements. Check allocator-extended constructors. 2024-01-19 Patrick Palka * include/precompiled/stdc++.h [_GLIBCXX_HOSTED]: Include and for C++23 and C++26 respectively. 2024-01-18 Patrick Palka * include/bits/stl_pair.h [__cplusplus > 202002L]: Guard P2321R2 changes with __glibcxx_ranges_zip instead. 2024-01-18 Patrick Palka * include/std/tuple [__cplusplus > 202002L]: Guard P2321R2 changes with __cpp_lib_ranges_zip instead. 2024-01-18 Patrick Palka PR libstdc++/109536 * include/debug/safe_base.h (_Safe_sequence_base::_M_swap): Remove _GLIBCXX20_CONSTEXPR from non-inline member function. * include/debug/safe_iterator.h (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_BEGIN): Define. (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_END): Define. (_Safe_iterator::operator=): Use them around the code path that defines a variable of type __gnu_cxx::__scoped_lock. (_Safe_iterator::operator++): Likewise. (_Safe_iterator::operator--): Likewise. (_Safe_iterator::operator+=): Likewise. (_Safe_iterator::operator-=): Likewise. * testsuite/23_containers/vector/element_access/constexpr.cc (test_iterators): Test more iterator operations. * testsuite/23_containers/vector/bool/element_access/constexpr.cc (test_iterators): Likewise. * testsuite/std/ranges/adaptors/all.cc (test08) [_GLIBCXX_DEBUG]: Remove. 2024-01-18 Jonathan Wakely * include/bits/unicode.h (__charset_alias_match): Initialize __var_a and __var_b. 2024-01-18 Jonathan Wakely PR libstdc++/113450 * testsuite/std/format/functions/format.cc: Use signed char instead of int8_t. 2024-01-17 Jonathan Wakely PR libstdc++/113318 * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++26 directory. (GLIBCXX_CHECK_TEXT_ENCODING): Define. * config.h.in: Regenerate. * configure: Regenerate. * configure.ac: Use GLIBCXX_CHECK_TEXT_ENCODING. * include/Makefile.am: Add new headers. * include/Makefile.in: Regenerate. * include/bits/locale_classes.h (locale::encoding): Declare new member function. * include/bits/unicode.h (__charset_alias_match): New function. * include/bits/text_encoding-data.h: New file. * include/bits/version.def (text_encoding): Define. * include/bits/version.h: Regenerate. * include/std/text_encoding: New file. * src/Makefile.am: Add new subdirectory. * src/Makefile.in: Regenerate. * src/c++26/Makefile.am: New file. * src/c++26/Makefile.in: New file. * src/c++26/text_encoding.cc: New file. * src/experimental/Makefile.am: Include c++26 convenience library. * src/experimental/Makefile.in: Regenerate. * python/libstdcxx/v6/printers.py (StdTextEncodingPrinter): New printer. * scripts/gen_text_encoding_data.py: New file. * testsuite/22_locale/locale/encoding.cc: New test. * testsuite/ext/unicode/charset_alias_match.cc: New test. * testsuite/std/text_encoding/cons.cc: New test. * testsuite/std/text_encoding/members.cc: New test. * testsuite/std/text_encoding/requirements.cc: New test. 2024-01-17 Jonathan Wakely * include/bits/unicode.h (_Grapheme_cluster_view): Require view. Do not use CTAD for _Utf32_view. (__format_width, __truncate): Do not use CTAD. (enable_borrowed_range<_Utf_view>): Define specialization. (enable_borrowed_range<_Grapheme_cluster_view>): Likewise. 2024-01-17 Patrick Palka * include/std/ranges (views::_CartesianProduct::operator()): Adjust identity case as per P2540R1. * testsuite/std/ranges/cartesian_product/1.cc (test01): Adjust expected result of the identity case. 2024-01-15 Patrick Palka * include/std/variant (__detail::__variant::_Variadic_union): Add bool __trivially_destructible template parameter. (__detail::__variant::_Variadic_union::~_Variadic_union): Use __trivially_destructible in constraints instead. (__detail::__variant::_Variant_storage): Pass __trivially_destructible value to _Variadic_union. 2024-01-15 Patrick Palka * include/bits/stl_iterator.h (const_iterator): Define conversion operators as per P2836R1. * include/bits/version.def (ranges_as_const): Update value. * include/bits/version.h: Regenerate. * testsuite/24_iterators/const_iterator/1.cc (test04): New test. * testsuite/std/ranges/adaptors/as_const/1.cc: Adjust expected value of __cpp_lib_ranges_as_const. * testsuite/std/ranges/version_c++23.cc: Likewise. 2024-01-15 Jonathan Wakely PR libstdc++/108822 * include/std/tuple (__assignable, __is_nothrow_assignable): Move pre-C++20 definitions adjacent to their use. 2024-01-15 Jonathan Wakely PR testsuite/113366 * include/std/format (basic_format_arg): Use __formattable variable template instead of __format::__formattable_with concept. 2024-01-15 Jonathan Wakely * src/c++20/tzdata.zi: Import new file from 2023d release. * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds) Update expiry date for leap seconds list. 2024-01-13 Jonathan Wakely PR libstdc++/108822 * include/std/tuple (tuple): Add checks for dangling references. Reimplement constraints and constant expressions using C++20 features. * include/std/type_traits [C++20] (__is_implicitly_default_constructible_v): Define. (__is_implicitly_default_constructible): Use variable template. * testsuite/20_util/tuple/dangling_ref.cc: New test. 2024-01-13 Patrick Palka PR libstdc++/108827 PR libstdc++/111327 * include/bits/version.def (bind_back): Define. * include/bits/version.h: Regenerate. * include/std/functional (_Bind_back): Define for C++23. (bind_back): Likewise. * testsuite/20_util/function_objects/bind_back/1.cc: New test (adapted from corresponding bind_front test). * testsuite/20_util/function_objects/bind_back/111327.cc: Likewise. 2024-01-13 Patrick Palka * include/std/functional (_Bind_front): Remove =default special member function declarations. (_Bind_front::operator()): Implement using C++23 deducing this when available. * testsuite/20_util/function_objects/bind_front/111327.cc: Adjust testcase to expect better errors in C++23 mode. 2024-01-13 Patrick Palka * include/std/ranges (views::__adaptor::operator|): Perform perfect forwarding of arguments. (views::__adaptor::_RangeAdaptor::operator()): Pass dummy first argument to _Partial. (views::__adaptor::_Partial::_Partial): Likewise. Add dummy first parameter. (views::__adaptor::_Pipe::_Pipe): Perform perfect forwarding of arguments. (to): Pass dummy first argument to _Partial. 2024-01-13 Jonathan Wakely PR libstdc++/107466 * include/bits/random.tcc (subtract_with_carry_engine::seed): Implement proposed resolution of LWG 4014. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line number. * testsuite/26_numerics/random/subtract_with_carry_engine/cons/lwg3809.cc: Check for expected result of 64-bit engine with seed that doesn't fit in 32-bits. 2024-01-12 Jonathan Wakely PR libstdc++/113320 * include/std/format (__format::_Runtime_format_string): Add constructor and disable copy operations. (basic_format_string(_Runtime_format_string)): Add noexcept and take parameter by value not rvalue reference. (runtime_format): Add noexcept. * testsuite/std/format/runtime_format.cc: Check noexcept. Check that construction is only possible from prvalues, not xvalues. 2024-01-12 Jonathan Wakely PR libstdc++/105505 * include/bits/stl_pair.h (pair::pair(U1&&, U2&&)) [C++23]: Add default template arguments, as per P1951R1. * testsuite/20_util/pair/cons/default_tmpl_args.cc: New test. 2024-01-12 Jonathan Wakely * include/std/format (__format::_Arg_store): Fix PR number in comment. Simplify preprocessor code. 2024-01-11 Jonathan Wakely * doc/xml/manual/evolution.xml: Fix spelling. * doc/html/manual/api.html: Regenerate. 2024-01-11 Jonathan Wakely * doc/xml/manual/evolution.xml: Document addition of libstdc++exp.a. * doc/html/*: Regenerate. 2024-01-11 Marcus Haehnel * libsupc++/eh_unex_handler.cc: Adjust definition type to declaration. 2024-01-11 Michael Levine * include/std/ranges (__glibcxx_want_ranges_iota): Remove duplicate definition. 2024-01-11 François Dumont PR libstdc++/112477 * src/c++11/debug.cc (_Safe_iterator_base::_M_attach): Reset _M_version to 0 if attaching to null sequence. (_Safe_iterator_base::_M_attach_single): Likewise. (_Safe_local_iterator_base::_M_attach): Likewise. (_Safe_local_iterator_base::_M_attach_single): Likewise. * testsuite/23_containers/map/debug/112477.cc: New test case. 2024-01-11 Patrick Palka * include/bits/move.h (__like_t): Define in C++23 mode. * include/std/ranges (views::__adaptor::Partial::operator()): Implement using C++23 deducing this when available. (views::__adaptor::_Pipe::operator()): Likewise. * testsuite/std/ranges/adaptors/100577.cc: Adjust testcase to accept new "no match for call" errors issued in C++23 mode. * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise. 2024-01-11 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdIntegralConstantPrinter): Add printer for std::integral_constant. * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it. 2024-01-11 Jonathan Wakely PR libstdc++/113258 * libsupc++/new_opa.cc: Prefer to use posix_memalign if available. 2024-01-11 Ken Matsui * src/filesystem/ops-common.h (stat_type): Use using. 2024-01-11 Ken Matsui PR libstdc++/113250 * src/c++17/fs_ops.cc (fs::equivalent): Use || instead of &&. * src/filesystem/ops.cc (fs::equivalent): Likewise. * testsuite/27_io/filesystem/operations/equivalent.cc: Handle error codes. * testsuite/experimental/filesystem/operations/equivalent.cc: Likewise. 2024-01-11 Ken Matsui * include/std/type_traits (is_compound): Do not use __not_. (is_compound_v): Use is_fundamental_v instead. 2024-01-11 Patrick Palka * include/bits/utility.h (_Nth_type): Use _GLIBCXX_USE_BUILTIN_TRAIT instead of __has_builtin. 2024-01-09 Jonathan Wakely * include/bits/unicode-data.h: Regenerate. * include/bits/unicode.h (_Utf_iterator::operator++()): Fix off by one error. (__incb_property): Add missing check for values before the first edge. (__is_extended_pictographic): Invert return values to fix copy&pasted logic. (_Grapheme_cluster_view::_Iterator): Remove second iterator member and find end of cluster lazily. * testsuite/ext/unicode/grapheme_view.cc: New test. * testsuite/ext/unicode/properties.cc: New test. * testsuite/ext/unicode/view.cc: New test. 2024-01-09 Andreas Schwab * scripts/extract_symvers.in: Require final colon to only match .dsynsym in the header of the dynamic symtab. 2024-01-09 Jonathan Wakely * include/bits/chrono_io.h (__formatter_chrono::_M_F): Simplify handling of string returned from std::format. (__formatter_chrono::_M_R_T): Likewise. 2024-01-08 Jonathan Wakely * include/bits/unicode.h (__null_sentinel): Remove. * testsuite/17_intro/names.cc: Add __null_sentinel. 2024-01-08 Jonathan Wakely * include/std/format (__format::_Runtime_format_string): Define new class template. (basic_format_string): Add non-consteval constructor for runtime format strings. (runtime_format): Define new function for C++26. * testsuite/std/format/runtime_format.cc: New test. 2024-01-08 Jonathan Wakely * include/bits/chrono_io.h (__formatter_chrono): Always use lvalue arguments to make_format_args. * include/std/format (make_format_args): Change parameter pack from forwarding references to lvalue references. Remove use of remove_reference_t which is now unnecessary. (format_to, formatted_size): Remove incorrect forwarding of arguments. * include/std/ostream (print): Remove forwarding of arguments. * include/std/print (print): Likewise. * testsuite/20_util/duration/io.cc: Use lvalues as arguments to make_format_args. * testsuite/std/format/arguments/args.cc: Likewise. * testsuite/std/format/arguments/lwg3810.cc: Likewise. * testsuite/std/format/functions/format.cc: Likewise. * testsuite/std/format/functions/vformat_to.cc: Likewise. * testsuite/std/format/string.cc: Likewise. * testsuite/std/time/day/io.cc: Likewise. * testsuite/std/time/month/io.cc: Likewise. * testsuite/std/time/weekday/io.cc: Likewise. * testsuite/std/time/year/io.cc: Likewise. * testsuite/std/time/year_month_day/io.cc: Likewise. * testsuite/std/format/arguments/args_neg.cc: New test. 2024-01-08 Jonathan Wakely * include/Makefile.am: Add new headers. * include/Makefile.in: Regenerate. * include/bits/unicode.h: New file. * include/bits/unicode-data.h: New file. * include/std/format: Include . (__literal_encoding_is_utf8): Move to . (_Spec::_M_fill): Change type to char32_t. (_Spec::_M_parse_fill_and_align): Read a Unicode scalar value instead of a single character. (__write_padded): Change __fill_char parameter to char32_t and encode it into the output. (__formatter_str::format): Use new __unicode::__field_width and __unicode::__truncate functions. * include/std/ostream: Adjust namespace qualification for __literal_encoding_is_utf8. * include/std/print: Likewise. * src/c++23/print.cc: Add [[unlikely]] attribute to error path. * testsuite/ext/unicode/view.cc: New test. * testsuite/std/format/functions/format.cc: Add missing examples from the standard demonstrating alignment with non-ASCII characters. Add examples checking correct handling of extended grapheme clusters. 2024-01-08 Jonathan Wakely * include/bits/version.def (format_uchar): Define. * include/bits/version.h: Regenerate. * include/std/format (formatter::format): Check for _Pres_c and call _M_format_character directly. Cast C to its unsigned equivalent for formatting as an integer. (formatter::format): Likewise. (basic_format_arg(T&)): Store char arguments as unsigned char for formatting to a wide string. * testsuite/std/format/functions/format.cc: Adjust test. Check formatting of 2024-01-07 Jonathan Wakely PR libstdc++/112997 * libsupc++/unwind-cxx.h (__cxa_call_terminate): Change first parameter to void*. 2024-01-07 Jonathan Wakely * testsuite/20_util/variant/87619.cc: Remove dg-timeout-factor. 2024-01-07 Jonathan Wakely * include/std/type_traits (is_trivially_destructible_v): Use built-in directly when concepts are supported. * testsuite/20_util/is_trivially_destructible/value_v.cc: New test. 2024-01-06 Gwenole Beauchesne * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Use nonnull arguments to strtoimax() and wcstoimax() functions. 2024-01-05 Jonathan Wakely * src/c++17/fs_path.cc (path::_List::reserve): Limit maximum size and check for overflows in arithmetic. (path::operator/=(const path&)): Remove redundant exponential growth calculation. 2024-01-05 Martin Küttler * src/c++17/fs_path.cc (path::_List::reserve): Avoid floating-point arithmetic. 2024-01-05 Jonathan Wakely PR libstdc++/113241 * include/std/type_traits (is_convertible_v): Guard use of built-in with preprocessor check. 2024-01-05 Jonathan Wakely PR libstdc++/113200 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Use __builtin_constant_p to check for unrelated pointers that cannot be compared during constant evaluation. * testsuite/21_strings/char_traits/requirements/113200.cc: New test. 2024-01-05 Cassio Neri * include/std/chrono: Fix + and - for months and weekdays. * testsuite/std/time/month/1.cc: Add constexpr tests against overflow. * testsuite/std/time/month/2.cc: New test for extreme values. * testsuite/std/time/weekday/1.cc: Add constexpr tests against overflow. * testsuite/std/time/weekday/2.cc: New test for extreme values. 2024-01-05 Jonathan Wakely PR libstdc++/113099 * include/bits/locale_classes.tcc (__try_use_facet): Use if-constexpr for C++11 and up. 2024-01-05 Ken Matsui * include/std/type_traits: Use _GLIBCXX_USE_BUILTIN_TRAIT. 2024-01-04 Arsen Arsenović * include/std/generator (_Subyield_state::_M_jump_in): Fix typo reported by Will Hawkins . 2024-01-04 Arsen Arsenović * include/std/generator (_Stateless_alloc): Rename typename _A to _All. 2024-01-03 Patrick Palka PR testsuite/113175 * testsuite/std/ranges/iota/max_size_type.cc (test02): Reduce 'limit' to 100 from 1000 and adjust 'log2_limit' accordingly. (test03): Likewise. Copyright (C) 2024 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.