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.