+2023-11-30 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/ranges (__detail::__toable): Fix incorrect use of
+ _Range instead of _Cont.
+ (__detail::_ToClosure, __detail::_ToClosure2): Add missing
+ constexpr specifier on constructors.
+ * testsuite/std/ranges/conv/1.cc (_Cont, _Cont2, _Cont3): Remove
+ unnecessary begin() and end() members.
+ (test_constexpr): New function to check range adaptors are
+ usable in constant expressions.
+
+2023-11-29 Thomas Schwinge <thomas@codesourcery.com>
+
+ * testsuite/23_containers/span/at.cc: Fix for '-fno-exceptions'
+ configurations.
+
+2023-11-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/atomic_wait.h: Include <stdint.h>.
+
+2023-11-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/stl_uninitialized.h: Fix typo in comment.
+
+2023-11-24 Jan Hubicka <jh@suse.cz>
+
+ PR middle-end/109849
+ * include/bits/stl_uninitialized.h (__relocate_a_1): Use memcpy instead
+ of memmove.
+
+2023-11-23 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/111055
+ * include/bits/ranges_base.h (from_range_t): Define new tag
+ type.
+ (from_range): Define new tag object.
+ * include/bits/version.def (ranges_to_container): Define.
+ * include/bits/version.h: Regenerate.
+ * include/std/ranges (ranges::to): Define.
+ * testsuite/std/ranges/conv/1.cc: New test.
+ * testsuite/std/ranges/conv/2_neg.cc: New test.
+ * testsuite/std/ranges/conv/version.cc: New test.
+
+2023-11-23 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/util/testsuite_allocator.h (uneq_allocator): Fix
+ equality operator for heterogeneous comparisons.
+
+2023-11-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/version.def (freestanding_cstring): Add.
+ * include/bits/version.h: Regenerate.
+ * include/c_compatibility/string.h (strtok): Do not declare for
+ C++26 freestanding.
+ * include/c_global/cstring (strtok): Likewise.
+ * testsuite/21_strings/headers/cstring/version.cc: New test.
+
+2023-11-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/version.def (freestanding_algorithm)
+ (freestanding_array, freestanding_optional)
+ (freestanding_string_view, freestanding_variant): Add.
+ * include/bits/version.h: Regenerate.
+ * include/std/algorithm (__glibcxx_want_freestanding_algorithm):
+ Define.
+ * include/std/array (__glibcxx_want_freestanding_array):
+ Define.
+ * include/std/optional (__glibcxx_want_freestanding_optional):
+ Define.
+ * include/std/string_view
+ (__glibcxx_want_freestanding_string_view): Define.
+ * include/std/variant (__glibcxx_want_freestanding_variant):
+ Define.
+ * testsuite/20_util/optional/version.cc: Add checks for
+ __cpp_lib_freestanding_optional.
+ * testsuite/20_util/variant/version.cc: Add checks for
+ __cpp_lib_freestanding_variant.
+ * testsuite/23_containers/array/tuple_interface/get_neg.cc:
+ Adjust dg-error line numbers.
+ * testsuite/21_strings/basic_string_view/requirements/version.cc:
+ New test.
+ * testsuite/23_containers/array/requirements/version.cc: New
+ test.
+ * testsuite/25_algorithms/fill_n/requirements/version.cc: New
+ test.
+ * testsuite/25_algorithms/swap_ranges/requirements/version.cc:
+ New test.
+
+2023-11-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/version.def (freestanding_expected): New macro.
+ (span): Add C++26 value.
+ * include/bits/version.h: Regenerate.
+ * include/std/expected (__glibcxx_want_freestanding_expected):
+ Define.
+ * include/std/span (span::at): New member function.
+ * testsuite/20_util/expected/version.cc: Add checks for
+ __cpp_lib_freestanding_expected.
+ * testsuite/23_containers/span/2.cc: Moved to...
+ * testsuite/23_containers/span/version.cc: ...here. Add checks
+ for __cpp_lib_span in <span> as well as in <version>.
+ * testsuite/23_containers/span/1.cc: Removed.
+ * testsuite/23_containers/span/at.cc: New test.
+
+2023-11-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/tr2/dynamic_bitset (dynamic_bitset): Pass zero and one
+ characters to _M_copy_from_string.
+ * testsuite/tr2/dynamic_bitset/string.cc: New test.
+
+2023-11-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/html/*: Regenerate.
+ * doc/xml/faq.xml: Remove reference to buildstat.html pages.
+ * doc/xml/manual/test.xml: Likewise
+
+2023-11-21 Jan Hubicka <jh@suse.cz>
+
+ PR libstdc++/110287
+ PR middle-end/109811
+ PR middle-end/109849
+ * include/bits/stl_vector.h (_M_realloc_append): New member function.
+ (push_back): Use it.
+ * include/bits/vector.tcc: (emplace_back): Use it.
+ (_M_realloc_insert): Let compiler know that new vector size is non-zero.
+ (_M_realloc_append): New member function.
+
+2023-11-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112607
+ * include/std/format (basic_format_arg::_S_to_arg_type): Check
+ value_type for basic_string_view and basic_string
+ specializations.
+ * testsuite/std/format/arguments/112607.cc: New test.
+
+2023-11-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/110801
+ * include/std/format (_Sink_iter::_M_reserve): New member
+ function.
+ (_Sink::_Reservation): New nested class.
+ (_Sink::_M_reserve, _Sink::_M_bump): New virtual functions.
+ (_Seq_sink::_M_reserve, _Seq_sink::_M_bump): New virtual
+ overrides.
+ (_Iter_sink<O, ContigIter>::_M_reserve): Likewise.
+ (__do_vformat_to): Use new functions to optimize "{}" case.
+
+2023-11-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * config.h.in: Regenerate.
+
+2023-11-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/Makefile.am: Add new header.
+ * include/Makefile.in: Regenerate.
+ * include/bits/version.def (saturation_arithmetic): Define.
+ * include/bits/version.h: Regenerate.
+ * include/std/numeric: Include new header.
+ * include/bits/sat_arith.h: New file.
+ * testsuite/26_numerics/saturation/add.cc: New test.
+ * testsuite/26_numerics/saturation/cast.cc: New test.
+ * testsuite/26_numerics/saturation/div.cc: New test.
+ * testsuite/26_numerics/saturation/mul.cc: New test.
+ * testsuite/26_numerics/saturation/sub.cc: New test.
+ * testsuite/26_numerics/saturation/version.cc: New test.
+
+2023-11-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/utility (in_range): Rename _Up parameter to _Res.
+
+2023-11-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/out_ptr.h: Add Doxygen comments. Remove a
+ redundant preprocessor condition.
+ * testsuite/20_util/smartptr.adapt/version.cc: New test.
+
+2023-11-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/chrono_io.h: Fix Doxygen markup.
+
+2023-11-16 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112564
+ * include/std/stacktrace (formatter::format): Format according
+ to format-spec.
+ * include/std/thread (formatter::format): Use _Align_right as
+ default.
+ * testsuite/19_diagnostics/stacktrace/output.cc: Check
+ fill-and-align handling. Change compile test to run.
+ * testsuite/30_threads/thread/id/output.cc: Check fill-and-align
+ handling.
+
+2023-11-16 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/111667
+ * include/Makefile.am: Add new header.
+ * include/Makefile.in: Regenerate.
+ * include/bits/out_ptr.h: New file.
+ * include/bits/shared_ptr.h (__is_shared_ptr): Move definition
+ to here ...
+ * include/bits/shared_ptr_atomic.h (__is_shared_ptr): ... from
+ here.
+ * include/bits/shared_ptr_base.h (__shared_count): Declare
+ out_ptr_t as a friend.
+ (_Sp_counted_deleter, __shared_ptr): Likewise.
+ * include/bits/unique_ptr.h (unique_ptr, unique_ptr<T[], D>):
+ Declare out_ptr_t and inout_ptr_t as friends.
+ (__is_unique_ptr): Define new variable template.
+ * include/bits/version.def (out_ptr): Define.
+ * include/bits/version.h: Regenerate.
+ * include/std/memory: Include new header.
+ * testsuite/20_util/smartptr.adapt/inout_ptr/1.cc: New test.
+ * testsuite/20_util/smartptr.adapt/inout_ptr/2.cc: New test.
+ * testsuite/20_util/smartptr.adapt/inout_ptr/shared_ptr_neg.cc:
+ New test.
+ * testsuite/20_util/smartptr.adapt/inout_ptr/void_ptr.cc: New
+ test.
+ * testsuite/20_util/smartptr.adapt/out_ptr/1.cc: New test.
+ * testsuite/20_util/smartptr.adapt/out_ptr/2.cc: New test.
+ * testsuite/20_util/smartptr.adapt/out_ptr/shared_ptr_neg.cc:
+ New test.
+ * testsuite/20_util/smartptr.adapt/out_ptr/void_ptr.cc: New
+ test.
+
+2023-11-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/algorithmfwd.h: Do not define standard feature
+ test macro here.
+ * include/bits/align.h: Likewise. Test internal macros instead
+ of standard macros.
+ * include/bits/alloc_traits.h: Likewise.
+ * include/bits/allocator.h: Likewise.
+ * include/bits/atomic_base.h: Likewise.
+ * include/bits/atomic_timed_wait.h: Likewise.
+ * include/bits/atomic_wait.h: Likewise.
+ * include/bits/basic_string.h: Likewise.
+ * include/bits/basic_string.tcc: Likewise.
+ * include/bits/char_traits.h: Likewise.
+ * include/bits/chrono.h: Likewise.
+ * include/bits/cow_string.h: Likewise.
+ * include/bits/forward_list.h: Likewise.
+ * include/bits/hashtable.h: Likewise.
+ * include/bits/ios_base.h: Likewise.
+ * include/bits/memory_resource.h: Likewise.
+ * include/bits/move.h: Likewise.
+ * include/bits/move_only_function.h: Likewise.
+ * include/bits/node_handle.h: Likewise.
+ * include/bits/ptr_traits.h: Likewise.
+ * include/bits/range_access.h: Likewise.
+ * include/bits/ranges_algo.h: Likewise.
+ * include/bits/ranges_cmp.h: Likewise.
+ * include/bits/ranges_util.h: Likewise.
+ * include/bits/semaphore_base.h: Likewise.
+ * include/bits/shared_ptr.h: Likewise.
+ * include/bits/shared_ptr_atomic.h: Likewise.
+ * include/bits/shared_ptr_base.h: Likewise.
+ * include/bits/stl_algo.h: Likewise.
+ * include/bits/stl_algobase.h: Likewise.
+ * include/bits/stl_function.h: Likewise.
+ * include/bits/stl_iterator.h: Likewise.
+ * include/bits/stl_list.h: Likewise.
+ * include/bits/stl_map.h: Likewise.
+ * include/bits/stl_pair.h: Likewise.
+ * include/bits/stl_queue.h: Likewise.
+ * include/bits/stl_stack.h: Likewise.
+ * include/bits/stl_tree.h: Likewise.
+ * include/bits/stl_uninitialized.h: Likewise.
+ * include/bits/stl_vector.h: Likewise.
+ * include/bits/unique_ptr.h: Likewise.
+ * include/bits/unordered_map.h: Likewise.
+ * include/bits/uses_allocator_args.h: Likewise.
+ * include/bits/utility.h: Likewise.
+ * include/bits/erase_if.h: Add comment.
+ * include/std/algorithm: Define standard feature test macros
+ here.
+ * include/std/atomic: Likewise.
+ * include/std/array: Likewise.
+ * include/std/chrono: Likewise.
+ * include/std/condition_variable: Likewise.
+ * include/std/deque: Likewise.
+ * include/std/format: Likewise.
+ * include/std/functional: Likewise.
+ * include/std/forward_list: Likewise.
+ * include/std/ios: Likewise.
+ * include/std/iterator: Likewise.
+ * include/std/list: Likewise.
+ * include/std/map: Likewise.
+ * include/std/memory: Likewise.
+ * include/std/numeric: Likewise.
+ * include/std/queue: Likewise.
+ * include/std/ranges: Likewise.
+ * include/std/regex: Likewise.
+ * include/std/set: Likewise.
+ * include/std/stack: Likewise.
+ * include/std/stop_token: Likewise.
+ * include/std/string: Likewise.
+ * include/std/string_view:
+ * include/std/tuple: Likewise.
+ * include/std/unordered_map:
+ * include/std/unordered_set:
+ * include/std/utility: Likewise.
+ * include/std/vector: Likewise.
+ * include/std/scoped_allocator: Query internal macros instead of
+ standard macros.
+
+2023-11-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/18_support/byte/requirements.cc: Disable PCH.
+ * testsuite/18_support/destroying_delete.cc: Likewise.
+ * testsuite/18_support/source_location/1.cc: Likewise.
+ * testsuite/18_support/source_location/version.cc: Likewise.
+ * testsuite/18_support/type_info/constexpr.cc: Likewise.
+ * testsuite/18_support/uncaught_exceptions/uncaught_exceptions.cc:
+ Likewise.
+ * testsuite/19_diagnostics/stacktrace/output.cc: Likewise.
+ * testsuite/19_diagnostics/stacktrace/synopsis.cc: Likewise.
+ * testsuite/19_diagnostics/stacktrace/version.cc: Likewise.
+ * testsuite/20_util/addressof/requirements/constexpr.cc:
+ Likewise.
+ * testsuite/20_util/allocator_traits/header-2.cc: Likewise.
+ * testsuite/20_util/allocator_traits/header.cc: Likewise.
+ * testsuite/20_util/as_const/1.cc: Likewise. Likewise.
+ * testsuite/20_util/bitset/cons/constexpr_c++23.cc: Likewise.
+ * testsuite/20_util/bitset/version.cc: Likewise.
+ * testsuite/20_util/duration/arithmetic/constexpr_c++17.cc:
+ Likewise.
+ * testsuite/20_util/duration_cast/rounding.cc: Likewise.
+ * testsuite/20_util/enable_shared_from_this/members/weak_from_this.cc:
+ Likewise.
+ * testsuite/20_util/exchange/constexpr.cc: Likewise.
+ * testsuite/20_util/expected/synopsis.cc: Likewise.
+ * testsuite/20_util/expected/version.cc: Likewise.
+ * testsuite/20_util/function_objects/bind_front/1.cc: Likewise.
+ * testsuite/20_util/function_objects/bind_front/2.cc: Likewise.
+ * testsuite/20_util/function_objects/invoke/3.cc: Likewise.
+ * testsuite/20_util/function_objects/invoke/4.cc: Likewise.
+ * testsuite/20_util/function_objects/invoke/constexpr.cc:
+ Likewise.
+ * testsuite/20_util/function_objects/invoke/version.cc:
+ Likewise.
+ * testsuite/20_util/function_objects/searchers.cc: Likewise.
+ * testsuite/20_util/integer_comparisons/1.cc: Likewise.
+ * testsuite/20_util/integer_comparisons/2.cc: Likewise.
+ * testsuite/20_util/is_bounded_array/value.cc: Likewise.
+ * testsuite/20_util/is_layout_compatible/value.cc: Likewise.
+ * testsuite/20_util/is_layout_compatible/version.cc: Likewise.
+ * testsuite/20_util/is_nothrow_swappable/requirements/explicit_instantiation.cc:
+ Likewise.
+ * testsuite/20_util/is_nothrow_swappable/requirements/typedefs.cc:
+ Likewise.
+ * testsuite/20_util/is_nothrow_swappable/value.cc: Likewise.
+ * testsuite/20_util/is_nothrow_swappable/value.h: Likewise.
+ * testsuite/20_util/is_nothrow_swappable_with/requirements/explicit_instantiation.cc:
+ Remove redundant checks already tested elsewhere.
+ * testsuite/20_util/is_nothrow_swappable_with/requirements/typedefs.cc:
+ Likewise.
+ * testsuite/20_util/is_nothrow_swappable_with/value.cc: Disable
+ PCH.
+ * testsuite/20_util/is_pointer_interconvertible/value.cc:
+ Likewise.
+ * testsuite/20_util/is_pointer_interconvertible/version.cc:
+ Likewise.
+ * testsuite/20_util/is_scoped_enum/value.cc: Likewise.
+ * testsuite/20_util/is_scoped_enum/version.cc: Likewise.
+ * testsuite/20_util/is_swappable/requirements/explicit_instantiation.cc:
+ Remove redundant checks already tested elsewhere.
+ * testsuite/20_util/is_swappable/requirements/typedefs.cc:
+ Remove redundant checks already tested elsewhere.
+ * testsuite/20_util/is_swappable/value.cc: Disable PCH.
+ * testsuite/20_util/is_swappable/value.h: Reorder headers.
+ * testsuite/20_util/is_swappable_with/requirements/explicit_instantiation.cc:
+ Remove redundant checks already tested elsewhere.
+ * testsuite/20_util/is_swappable_with/requirements/typedefs.cc:
+ Remove redundant checks already tested elsewhere.
+ * testsuite/20_util/is_swappable_with/value.cc: Disable PCH.
+ * testsuite/20_util/is_unbounded_array/value.cc: Likewise.
+ * testsuite/20_util/move_only_function/cons.cc: Likewise.
+ * testsuite/20_util/move_only_function/version.cc: Likewise.
+ * testsuite/20_util/optional/monadic/and_then.cc: Likewise.
+ * testsuite/20_util/optional/requirements.cc: Likewise.
+ * testsuite/20_util/optional/version.cc: Likewise.
+ * testsuite/20_util/owner_less/void.cc: Likewise.
+ * testsuite/20_util/reference_from_temporary/value.cc: Likewise.
+ * testsuite/20_util/reference_from_temporary/version.cc:
+ Likewise.
+ * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
+ Likewise.
+ * testsuite/20_util/shared_ptr/creation/array.cc: Likewise.
+ * testsuite/20_util/shared_ptr/creation/overwrite.cc: Likewise.
+ * testsuite/20_util/shared_ptr/creation/version.cc: Likewise.
+ * testsuite/20_util/time_point_cast/rounding.cc: Likewise.
+ * testsuite/20_util/to_chars/constexpr.cc: Likewise.
+ * testsuite/20_util/to_chars/result.cc: Likewise.
+ * testsuite/20_util/to_chars/version.cc: Likewise.
+ * testsuite/20_util/to_underlying/1.cc: Likewise.
+ * testsuite/20_util/to_underlying/version.cc: Likewise.
+ * testsuite/20_util/tuple/apply/1.cc: Likewise.
+ * testsuite/20_util/tuple/cons/constexpr_allocator_arg_t.cc:
+ Likewise.
+ * testsuite/20_util/tuple/make_from_tuple/1.cc: Likewise.
+ * testsuite/20_util/tuple/p2321r2.cc: Likewise.
+ * testsuite/20_util/tuple/tuple_element_t.cc: Likewise.
+ * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc:
+ Likewise.
+ * testsuite/20_util/unique_ptr/creation/for_overwrite.cc:
+ Likewise.
+ * testsuite/20_util/unreachable/1.cc: Likewise.
+ * testsuite/20_util/unreachable/version.cc: Likewise.
+ * testsuite/20_util/unwrap_reference/1.cc: Likewise.
+ * testsuite/20_util/unwrap_reference/3.cc: Likewise.
+ * testsuite/20_util/variant/constexpr.cc: Likewise.
+ * testsuite/20_util/variant/version.cc: Likewise.
+ * testsuite/20_util/variant/visit_inherited.cc: Likewise.
+ * testsuite/20_util/void_t/1.cc: Likewise.
+ * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/cons/char/constexpr.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/cons/wchar_t/constexpr.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/erasure.cc: Likewise.
+ * testsuite/21_strings/basic_string/numeric_conversions/char/to_string_float.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/numeric_conversions/version.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string/version.cc: Likewise.
+ * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
+ Likewise.
+ * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc:
+ Likewise.
+ * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc:
+ Likewise.
+ * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++20.cc:
+ Likewise.
+ * testsuite/21_strings/char_traits/requirements/version.cc:
+ Likewise.
+ * testsuite/23_containers/array/comparison_operators/constexpr.cc:
+ Likewise.
+ * testsuite/23_containers/array/creation/1.cc: Likewise.
+ * testsuite/23_containers/array/creation/2.cc: Likewise.
+ * testsuite/23_containers/array/element_access/constexpr_c++17.cc:
+ Likewise.
+ * testsuite/23_containers/array/requirements/constexpr_fill.cc:
+ Likewise.
+ * testsuite/23_containers/array/requirements/constexpr_iter.cc:
+ Likewise.
+ * testsuite/23_containers/deque/erasure.cc: Likewise.
+ * testsuite/23_containers/forward_list/erasure.cc: Likewise.
+ * testsuite/23_containers/list/erasure.cc: Likewise.
+ * testsuite/23_containers/map/erasure.cc: Likewise.
+ * testsuite/23_containers/queue/cons_from_iters.cc: Likewise.
+ * testsuite/23_containers/set/erasure.cc: Likewise.
+ * testsuite/23_containers/span/1.cc: Likewise.
+ * testsuite/23_containers/span/2.cc: Likewise.
+ * testsuite/23_containers/stack/cons_from_iters.cc: Likewise.
+ * testsuite/23_containers/unordered_map/erasure.cc: Likewise.
+ * testsuite/23_containers/unordered_map/operations/1.cc:
+ Likewise.
+ * testsuite/23_containers/unordered_set/erasure.cc: Likewise.
+ * testsuite/23_containers/unordered_set/operations/1.cc:
+ Likewise.
+ * testsuite/23_containers/vector/cons/constexpr.cc: Likewise.
+ * testsuite/23_containers/vector/erasure.cc: Likewise.
+ * testsuite/23_containers/vector/requirements/version.cc:
+ Likewise.
+ * testsuite/24_iterators/insert_iterator/constexpr.cc: Likewise.
+ * testsuite/25_algorithms/clamp/constexpr.cc: Likewise.
+ * testsuite/25_algorithms/clamp/requirements/explicit_instantiation/1.cc:
+ Remove redundant checks already tested elsewhere.
+ * testsuite/25_algorithms/constexpr_macro.cc: Likewise.
+ * testsuite/25_algorithms/cpp_lib_constexpr.cc: Likewise.
+ * testsuite/25_algorithms/fold_left/1.cc: Likewise.
+ * testsuite/25_algorithms/pstl/feature_test-2.cc: Likewise.
+ * testsuite/25_algorithms/pstl/feature_test-3.cc: Likewise.
+ * testsuite/25_algorithms/pstl/feature_test-4.cc: Likewise.
+ * testsuite/25_algorithms/pstl/feature_test-5.cc: Likewise.
+ * testsuite/25_algorithms/pstl/feature_test.cc: Likewise.
+ * testsuite/26_numerics/bit/bit.byteswap/byteswap.cc: Likewise.
+ * testsuite/26_numerics/bit/bit.byteswap/version.cc: Likewise.
+ * testsuite/26_numerics/bit/bit.cast/bit_cast.cc: Likewise.
+ * testsuite/26_numerics/bit/bit.cast/version.cc: Likewise.
+ * testsuite/26_numerics/bit/header-2.cc: Likewise.
+ * testsuite/26_numerics/bit/header.cc: Likewise.
+ * testsuite/26_numerics/complex/1.cc: Likewise.
+ * testsuite/26_numerics/complex/2.cc: Likewise.
+ * testsuite/26_numerics/endian/2.cc: Likewise.
+ * testsuite/26_numerics/endian/3.cc: Likewise.
+ * testsuite/26_numerics/gcd/1.cc: Likewise.
+ * testsuite/26_numerics/lcm/1.cc: Likewise.
+ * testsuite/26_numerics/lerp/1.cc: Likewise.
+ * testsuite/26_numerics/lerp/version.cc: Likewise.
+ * testsuite/26_numerics/midpoint/integral.cc: Likewise.
+ * testsuite/26_numerics/midpoint/version.cc: Likewise.
+ * testsuite/26_numerics/numbers/1.cc: Likewise.
+ * testsuite/26_numerics/numbers/2.cc: Likewise.
+ * testsuite/27_io/basic_filebuf/native_handle/char/1.cc:
+ Likewise.
+ * testsuite/27_io/basic_filebuf/native_handle/version.cc:
+ Likewise.
+ * testsuite/27_io/basic_ofstream/open/char/noreplace.cc:
+ Likewise.
+ * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
+ Likewise.
+ * testsuite/27_io/basic_syncbuf/1.cc: Likewise.
+ * testsuite/27_io/basic_syncbuf/2.cc: Likewise.
+ * testsuite/27_io/basic_syncstream/1.cc: Likewise.
+ * testsuite/27_io/basic_syncstream/2.cc: Likewise.
+ * testsuite/27_io/spanstream/1.cc: Likewise.
+ * testsuite/27_io/spanstream/version.cc: Likewise.
+ * testsuite/29_atomics/atomic/cons/value_init.cc: Likewise.
+ * testsuite/29_atomics/atomic/lock_free_aliases.cc: Likewise.
+ * testsuite/29_atomics/atomic/wait_notify/1.cc: Likewise.
+ * testsuite/29_atomics/atomic/wait_notify/2.cc: Likewise.
+ * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
+ Likewise.
+ * testsuite/29_atomics/headers/stdatomic.h/version.cc: Likewise.
+ * testsuite/30_threads/barrier/1.cc: Likewise.
+ * testsuite/30_threads/barrier/2.cc: Likewise.
+ * testsuite/30_threads/condition_variable_any/stop_token/1.cc:
+ Likewise.
+ * testsuite/30_threads/condition_variable_any/stop_token/2.cc:
+ Likewise.
+ * testsuite/30_threads/jthread/1.cc: Likewise.
+ * testsuite/30_threads/jthread/version.cc: Likewise.
+ * testsuite/30_threads/latch/1.cc: Likewise.
+ * testsuite/30_threads/latch/2.cc: Likewise.
+ * testsuite/30_threads/scoped_lock/requirements/typedefs.cc:
+ Likewise.
+ * testsuite/30_threads/semaphore/1.cc: Likewise.
+ * testsuite/30_threads/semaphore/2.cc: Likewise.
+ * testsuite/30_threads/stop_token/1.cc: Likewise.
+ * testsuite/30_threads/stop_token/2.cc: Likewise.
+ * testsuite/experimental/feat-char8_t.cc: Likewise.
+ * testsuite/experimental/iterator/ostream_joiner.cc: Likewise.
+ * testsuite/experimental/numeric/gcd.cc: Likewise.
+ * testsuite/experimental/scopeguard/uniqueres.cc: Likewise.
+ * testsuite/std/concepts/1.cc: Likewise.
+ * testsuite/std/concepts/2.cc: Likewise.
+ * testsuite/std/ranges/adaptors/as_const/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/enumerate/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
+ * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
+ * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
+ * testsuite/std/ranges/headers/ranges/synopsis.cc: Likewise.
+ * testsuite/std/ranges/repeat/1.cc: Likewise.
+ * testsuite/std/ranges/version_c++23.cc: Likewise.
+ * testsuite/std/ranges/zip/1.cc: Likewise.
+ * testsuite/std/time/syn_c++20.cc: Likewise.
+ * testsuite/experimental/feat-cxx14.cc: Likewise. Include
+ <algorithm> and <iterator>.
+ * testsuite/23_containers/array/tuple_interface/get_neg.cc:
+ Adjust dg-error line numbers.
+
+2023-11-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/version.def (stds): Use >= 202100 for C++23
+ condition.
+ * include/bits/version.h: Regenerate.
+ * include/std/thread: Use > C++20 instead of >= C++23 for
+ __cplusplus condition.
+
+2023-11-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/istream (__rvalue_stream_extraction_t): Test
+ __cpp_concepts instead of __cpp_lib_concepts.
+ * include/std/ostream (__derived_from_ios_base): Likewise.
+ (__rvalue_stream_insertion_t): Likewise.
+
+2023-11-15 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112491
+ * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.index):
+ Correctly handle unused capacity at the start of the first node.
+ * testsuite/libstdc++-xmethods/deque.cc: Check index operator
+ when elements have been removed from the front.
+
+2023-11-15 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/stacktrace (basic_stacktrace::at): Fix class name
+ in exception message.
+ * testsuite/19_diagnostics/stacktrace/hash.cc: Do not fail if
+ current() returns a non-empty stacktrace.
+
+2023-11-15 Alexandre Oliva <oliva@gnu.org>
+
+ Revert:
+ 2023-11-15 Alexandre Oliva <oliva@adacore.com>
+
+ * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
+
+2023-11-15 Alexandre Oliva <oliva@adacore.com>
+
+ * include/bits/stl_bvector.h (_GLIBCXX_ALWAYS_INLINE): Undef.
+
+2023-11-14 Cassio Neri <cassio.neri@gmail.com>
+
+ * include/std/chrono (operator-(const weekday&, const weekday&)):
+ Optimize.
+
+2023-11-14 Cassio Neri <cassio.neri@gmail.com>
+
+ * include/std/chrono (weekday::_S_from_days): Fix UB.
+ * testsuite/std/time/weekday/1.cc: Add test for overflow.
+
+2023-11-14 Cassio Neri <cassio.neri@gmail.com>
+
+ * include/std/chrono (year::is_leap): Clear code.
+
+2023-11-14 Cassio Neri <cassio.neri@gmail.com>
+
+ * include/std/chrono (year_month_day_last::day): Remove &1.
+
+2023-11-14 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/charconv (__from_chars_pow2_base): Convert base to
+ unsigned for call to __countr_zero.
+ (__from_chars_alnum): Likewise for call to __bit_width.
+
+2023-11-14 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112348
+ * include/std/stacktrace (hash<basic_stacktrace<Alloc>>): Fix
+ type of hash functio nfor entries.
+ * testsuite/19_diagnostics/stacktrace/hash.cc: New test.
+
+2023-11-14 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112491
+ * python/libstdcxx/v6/xmethods.py (DequeWorkerBase.size): Fix
+ calculation to use _M_start._M_cur.
+ * testsuite/libstdc++-xmethods/deque.cc: Check failing cases.
+
+2023-11-13 Arsen Arsenović <arsen@aarsen.me>
+
+ * configure: Regenerate.
+
+2023-11-13 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/std/time/clock/file/io.cc: Double timeout using
+ dg-timeout-factor.
+ * testsuite/std/time/clock/gps/io.cc: Likewise.
+ * testsuite/std/time/clock/local/io.cc: Likewise.
+ * testsuite/std/time/clock/system/io.cc: Likewise.
+ * testsuite/std/time/clock/tai/io.cc: Likewise.
+ * testsuite/std/time/clock/utc/io.cc: Likewise.
+
+2023-11-13 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112480
+ * include/std/optional (_Optional_payload_base::_M_reset): Set
+ _M_engaged to false unconditionally.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112467
+ * include/bits/stl_bvector.h (_M_assume_normalized): Do not use
+ statement form of assume attribute for Clang.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/string_view (operator==, operator<=>): Remove
+ redundant overloads (LWG 3950).
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/26_numerics/headers/complex.h/std_c++11.h: Moved to...
+ * testsuite/26_numerics/headers/complex.h/std_c++11.cc: ...here.
+ * testsuite/26_numerics/headers/complex.h/std_c++98.h: Moved to...
+ * testsuite/26_numerics/headers/complex.h/std_c++98.cc: ...here.
+ Check macro first and then #undef.
+ * testsuite/26_numerics/headers/complex.h/std_gnu++11.h: Moved to...
+ * testsuite/26_numerics/headers/complex.h/std_gnu++11.cc: ...here.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112473
+ * include/bits/utility.h (integer_sequence): Add static_assert.
+ * testsuite/20_util/integer_sequence/112473.cc: New test.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/20_util/pair/dangling_ref.cc: Add hosted effective
+ target for specifiers using c++17_down.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/shared_ptr_atomic.h (atomic_is_lock_free)
+ (atomic_load_explicit, atomic_load, atomic_store_explicit)
+ (atomic_store, atomic_exchange_explicit, atomic_exchange)
+ (atomic_compare_exchange_strong, atomic_compare_exchange_weak)
+ (atomic_compare_exchange_strong_explicit)
+ (atomic_compare_exchange_weak_explicit): Add deprecated
+ attribute for C++20 and later.
+ * testsuite/20_util/shared_ptr/atomic/1.cc: Suppress deprecated
+ warnings.
+ * testsuite/20_util/shared_ptr/atomic/2.cc: Likewise.
+ * testsuite/20_util/shared_ptr/atomic/3.cc: Likewise.
+ * testsuite/29_atomics/atomic/lwg3220.cc: Likewise.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/std_mutex.h (lock_guard): Add [[nodiscard]]
+ attribute to constructors.
+ * include/bits/unique_lock.h (unique_lock): Likewise.
+ * include/std/mutex (scoped_lock, scoped_lock<Mutex>): Likewise.
+ * testsuite/30_threads/lock_guard/cons/nodiscard.cc: New test.
+ * testsuite/30_threads/scoped_lock/cons/nodiscard.cc: New test.
+ * testsuite/30_threads/unique_lock/cons/nodiscard.cc: New test.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/span (span, as_bytes, as_writable_bytes): Add
+ [[nodiscard]] attribute on all non-void functions.
+ * testsuite/23_containers/span/back_assert_neg.cc: Suppress
+ nodiscard warning.
+ * testsuite/23_containers/span/back_neg.cc: Likewise.
+ * testsuite/23_containers/span/first_2_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/first_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/first_neg.cc: Likewise.
+ * testsuite/23_containers/span/front_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/front_neg.cc: Likewise.
+ * testsuite/23_containers/span/index_op_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/index_op_neg.cc: Likewise.
+ * testsuite/23_containers/span/last_2_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/last_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/last_neg.cc: Likewise.
+ * testsuite/23_containers/span/subspan_2_assert_neg.cc:
+ Likewise.
+ * testsuite/23_containers/span/subspan_3_assert_neg.cc:
+ Likewise.
+ * testsuite/23_containers/span/subspan_4_assert_neg.cc:
+ Likewise.
+ * testsuite/23_containers/span/subspan_5_assert_neg.cc:
+ Likewise.
+ * testsuite/23_containers/span/subspan_6_assert_neg.cc:
+ Likewise.
+ * testsuite/23_containers/span/subspan_assert_neg.cc: Likewise.
+ * testsuite/23_containers/span/subspan_neg.cc: Likewise.
+ * testsuite/23_containers/span/nodiscard.cc: New test.
+
+2023-11-11 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/111638
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * linkage.m4 (GLIBCXX_MAYBE_UNDERSCORED_FUNCS): Remove.
+ (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_1): Do not check for _foo.
+ (GLIBCXX_CHECK_MATH_DECLS_AND_LINKAGES_1): Likewise.
+ (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_2): Likewise.
+ (GLIBCXX_CHECK_MATH_DECL_AND_LINKAGE_3): Likewise.
+ (GLIBCXX_CHECK_STDLIB_DECL_AND_LINKAGE_2): Do not use
+ GLIBCXX_MAYBE_UNDERSCORED_FUNCS.
+
+2023-11-11 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ PR libstdc++/79700
+ * include/c_global/cmath (acosf, acosl, asinf, asinl, atanf)
+ (atanl, atan2f, atan2l, ceilf, ceill, cosf, cosl, coshf, coshl)
+ (expf, expl, fabsf, fabsl, floorf, floorl, fmodf, fmodl, frexpf)
+ (frexpl, ldexpf, ldexpl, logf, logl, log10f, log10l, modff)
+ (modfl, powf, powl, sinf, sinl, sinhf, sinhl, sqrtf, sqrtl, tanf)
+ (tanl, tanhf, tanhl): Add using-declarations in namespace std.
+ * testsuite/26_numerics/headers/cmath/equivalent_functions.cc:
+ New test.
+ * testsuite/26_numerics/headers/cmath/functions_std_c++17.cc:
+ Add checks for existence of above names.
+
+2023-11-09 Arsen Arsenović <arsen@aarsen.me>
+
+ * testsuite/20_util/scoped_allocator/noexcept.cc: Mark as
+ requiring hosted.
+
+2023-11-09 Arsen Arsenović <arsen@aarsen.me>
+
+ * include/bits/memoryfwd.h: Remove HOSTED check around allocator
+ and its specializations.
+
+2023-11-09 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/112453
+ * include/std/ranges (__detail::__box<_Tp>::operator*): Define
+ && overloads as well.
+ (__detail::__take_of_repeat_view): Forward __r when accessing
+ its _M_value member.
+ (__detail::__drop_of_repeat_view): Likewise.
+ * testsuite/std/ranges/repeat/1.cc (test07): New test.
+
+2023-11-09 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/bits/hashtable_policy.h (_RehashStateGuard): New.
+ (_Insert_base<>::_M_insert_range(_IIt, _IIt, const _NodeGet&, false_type)):
+ Adapt.
+ * include/bits/hashtable.h (__rehash_guard_t): New.
+ (__rehash_state): Remove.
+ (_M_rehash): Remove.
+ (_M_rehash_aux): Rename into _M_rehash.
+ (_M_assign_elements, _M_insert_unique_node, _M_insert_multi_node): Adapt.
+ (rehash): Adapt.
+
+2023-11-09 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/bits/hashtable_policy.h
+ (struct _NodePtrGuard<_HashtableAlloc, _NodePtr>): New.
+ (_ReuseAllocNode::operator()(_Args&&...)): Use latter to guard allocated node
+ pointer while constructing in place the value_type instance.
+
+2023-11-09 Alexandre Oliva <oliva@adacore.com>
+
+ PR libstdc++/110807
+ * include/bits/stl_bvector.h (_Bit_iterator_base): Add
+ _M_assume_normalized member function. Call it in _M_bump_up,
+ _M_bump_down, _M_incr, operator==, operator<=>, operator<, and
+ operator-.
+ (_Bit_iterator): Also call it in operator*.
+ (_Bit_const_iterator): Likewise.
+
+2023-11-07 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/bits/hashtable_policy.h
+ (_Hashtable_alloc<>::_M_allocate_node): Add missing call to node destructor
+ on construct exception.
+
+2023-11-07 Richard Biener <rguenther@suse.de>
+
+ PR libstdc++/112351
+ * src/c++98/locale.cc (locale::facet::_S_initialize_once):
+ Check whether _S_c_locale is already initialized.
+ (locale::facet::_S_get_c_locale): Always perform non-threadsafe
+ init when threadsafe init failed.
+
+2023-11-06 Ian Lance Taylor <iant@golang.org>
+
+ PR libbacktrace/111315
+ PR libbacktrace/112263
+ * acinclude.m4: Set -D_GNU_SOURCE in BACKTRACE_CPPFLAGS and when
+ grepping link.h for dl_iterate_phdr.
+ * configure: Regenerate.
+
+2023-11-06 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/expected (expected::and_then, expected::or_else):
+ Add string literals to static assertions.
+ * include/std/optional (optional::and_then, optional::or_else):
+ Likewise.
+
+2023-11-04 Feng Jisen <J1senn@outlook.com>
+
+ * include/bits/utility.h (_Nth_type): Remove redundant partial
+ specialization.
+
+2023-11-04 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/110133
+ * include/std/system_error (system_error::system_error): Group
+ arguments so that concatenation can reuse rvalue's capacity.
+ * src/c++11/system_error.cc (strerror_string): New function.
+ [_GLIBCXX_HAVE_STRERROR_R] (use_strerror_result): New functions.
+ (generic_error_category::message): Use strerror_string.
+ (system_error_category::message): Likewise.
+
+2023-11-04 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/appendix_contributing.xml: Replace example that
+ uses a BADNAME.
+ * doc/html/manual/source_code_style.html: Regenerate.
+
+2023-11-02 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112314
+ * include/std/string_view (string_view::remove_suffix): Add
+ debug assertion.
+ * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/debug.cc:
+ New test.
+ * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/debug.cc:
+ New test.
+
+2023-11-02 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_ENABLE_C99): Fix snprintf checks.
+ * configure: Regenerate.
+
+2023-10-30 François Dumont <fdumont@gcc.gnu.org>
+
+ * config/abi/pre/gnu-versioned-namespace.ver: Add comment on recently
+ added emul TLS symbols.
+
+2023-10-30 François Dumont <fdumont@gcc.gnu.org>
+
+ * src/experimental/contract.cc
+ [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Rework comment.
+ Remove weak attribute.
+
+2023-10-29 François Dumont <fdumont@gcc.gnu.org>
+
+ * config/abi/pre/gnu-versioned-namespace.ver: Add missing emul TLS
+ symbols.
+
+2023-10-29 François Dumont <fdumont@gcc.gnu.org>
+
+ * src/experimental/contract.cc
+ [_GLIBCXX_INLINE_VERSION](handle_contract_violation): Provide symbol
+ without version namespace decoration for gcc.
+
+2023-10-26 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/112089
+ * include/std/shared_mutex (shared_lock::unlock): Change errc
+ constant to operation_not_permitted.
+ * testsuite/30_threads/shared_lock/locking/112089.cc: New test.
+
+2023-10-26 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/20_util/duration/io.cc: Double timeout using
+ dg-timeout-factor.
+ * testsuite/std/time/day/io.cc: Likewise.
+ * testsuite/std/time/format.cc: Likewise.
+ * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
+ * testsuite/std/time/month/io.cc: Likewise.
+ * testsuite/std/time/month_day/io.cc: Likewise.
+ * testsuite/std/time/month_day_last/io.cc: Likewise.
+ * testsuite/std/time/month_weekday/io.cc: Likewise.
+ * testsuite/std/time/month_weekday_last/io.cc: Likewise.
+ * testsuite/std/time/weekday/io.cc: Likewise.
+ * testsuite/std/time/weekday_indexed/io.cc: Likewise.
+ * testsuite/std/time/weekday_last/io.cc: Likewise.
+ * testsuite/std/time/year/io.cc: Likewise.
+ * testsuite/std/time/year_month/io.cc: Likewise.
+ * testsuite/std/time/year_month_day/io.cc: Likewise.
+ * testsuite/std/time/year_month_day_last/io.cc: Likewise.
+ * testsuite/std/time/year_month_weekday/io.cc: Likewise.
+ * testsuite/std/time/year_month_weekday_last/io.cc: Likewise.
+ * testsuite/std/time/zoned_time/io.cc: Likewise.
+
+2023-10-25 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/111936
+ * src/libbacktrace/Makefile.am: Add -prefer-pic to libtool
+ compile commands.
+ * src/libbacktrace/Makefile.in: Regenerate.
+
+2023-10-24 Paul M. Bendixen <paulbendixen@gmail.com>
+
+ * include/Makefile.am: Move cstdarg, cstdalign and cstdbool to
+ freestanding.
+ * include/Makefile.in: Regenerate.
+
+2023-10-22 Iain Sandoe <iain@sandoe.co.uk>
+
+ * configure: Regenerate.
+ * configure.ac: Handle Darwin rpaths.
+ * src/Makefile.am: Handle Darwin rpaths.
+ * src/Makefile.in: Regenerate.
+
+2023-10-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/basic_string.h (_M_init_local_buf()): New
+ function.
+ (_M_use_local_data()): Use _M_init_local_buf.
+ (basic_string(), basic_string(const Alloc&))
+ (basic_string(basic_string&&))
+ (basic_string(basic_string&&, const Alloc&)): Use
+ _M_init_local_buf instead of _M_use_local_data().
+ * include/bits/basic_string.tcc (swap(basic_string&))
+ (_M_construct(InIter, InIter, input_iterator_tag))
+ (_M_construct(InIter, InIter, forward_iterator_tag))
+ (_M_construct(size_type, CharT), reserve()): Likewise.
+
+2023-10-21 Benjamin Brock <brock@cs.berkeley.edu>
+
+ * include/std/ranges (zip_view, adjacent_view): Implement
+ workaround for LLVM-61763.
+
+2023-10-21 Dimitrij Mijoski <dmjpp@hotmail.com>
+
+ * testsuite/22_locale/codecvt/codecvt_unicode.h: Test length()
+
+2023-10-21 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/fs_dir.h (operator==(default_sentinel_t)): Fix
+ indentation.
+
+2023-10-20 Marek Polacek <polacek@redhat.com>
+
+ PR testsuite/111883
+ * include/std/charconv (from_chars): Add explicit casts.
+
+2023-10-19 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/bits/hashtable_policy.h
+ (_Hash_code_base::_M_hash_code(const _Hash&, const _Hash_node_value<>&)): Remove.
+ (_Hash_code_base::_M_hash_code<_H2>(const _H2&, const _Hash_node_value<>&)): Remove.
+ * include/bits/hashtable.h
+ (_M_src_hash_code<_H2>(const _H2&, const key_type&, const __node_value_type&)): New.
+ (_M_merge_unique<>, _M_merge_multi<>): Use latter.
+ * testsuite/23_containers/unordered_map/modifiers/merge.cc
+ (test04, test05, test06): New test cases.
+
+2023-10-13 Jakub Jelinek <jakub@redhat.com>
+
+ * testsuite/tr1/8_c_compatibility/cstdio/functions.cc (test01):
+ Initialize stream to va_arg(ap, FILE*) rather than 0.
+ * testsuite/tr1/8_c_compatibility/cwchar/functions.cc (test01):
+ Likewise.
+
+2023-10-13 Hans-Peter Nilsson <hp@axis.com>
+
+ * testsuite/29_atomics/atomic/compare_exchange_padding.cc,
+ testsuite/29_atomics/atomic_flag/clear/1.cc,
+ testsuite/29_atomics/atomic_flag/cons/value_init.cc,
+ testsuite/29_atomics/atomic_flag/test_and_set/explicit.cc,
+ testsuite/29_atomics/atomic_flag/test_and_set/implicit.cc,
+ testsuite/29_atomics/atomic_ref/compare_exchange_padding.cc,
+ testsuite/29_atomics/atomic_ref/generic.cc,
+ testsuite/29_atomics/atomic_ref/integral.cc,
+ testsuite/29_atomics/atomic_ref/pointer.cc: Replace
+ dg-require-thread-fence with dg-require-atomic-cmpxchg-word.
+
+2023-10-13 Hans-Peter Nilsson <hp@axis.com>
+
+ * testsuite/lib/dg-options.exp (dg-require-atomic-cmpxchg-word):
+ New proc.
+ * testsuite/lib/libstdc++.exp (check_v3_target_atomic_cmpxchg_word):
+ Ditto.
+
+2023-10-05 François Dumont <fdumont@gcc.gnu.org>
+
+ * config/abi/pre/gnu-versioned-namespace.ver: Add missing symbols
+ for _Float{16,32,64,128,32x,64x,128x}.
+
+2023-10-04 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py
+ (StdExpAnyPrinter.__init__): Qualify call to
+ _string_types.
+
+2023-10-04 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py: Assume that
+ _versioned_namespace is non-None.
+ * python/libstdcxx/v6/xmethods.py (is_specialization_of):
+ Assume that _versioned_namespace is non-None.
+
+2023-10-04 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/xmethods.py (_versioned_namespace):
+ Define.
+
+2023-09-29 Dimitrij Mijoski <dmjpp@hotmail.com>
+
+ PR libstdc++/108976
+ * src/c++11/codecvt.cc (read_utf8_code_point): Fix handing of
+ surrogates in UTF-8.
+ (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-8.
+ (ucs4_in): Fix handling of range with odd number of bytes.
+ (ucs4_out): Fix handling of surrogates in UCS-4 -> UTF-16.
+ (ucs2_out): Fix handling of surrogates in UCS-2 -> UTF-16.
+ (ucs2_in): Fix handling of range with odd number of bytes.
+ (__codecvt_utf16_base<char16_t>::do_in): Likewise.
+ (__codecvt_utf16_base<char32_t>::do_in): Likewise.
+ (__codecvt_utf16_base<wchar_t>::do_in): Likewise.
+ * testsuite/22_locale/codecvt/codecvt_unicode.cc: Renames, add
+ tests for codecvt_utf16<char16_t> and codecvt_utf16<char32_t>.
+ * testsuite/22_locale/codecvt/codecvt_unicode.h: Refactor UTF-8
+ testing functions for char8_t, add more test cases for errors,
+ add testing functions for codecvt_utf16.
+ * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc:
+ Renames, add tests for codecvt_utf16<whchar_t>.
+ * testsuite/22_locale/codecvt/codecvt_utf16/79980.cc (test06):
+ Fix test.
+ * testsuite/22_locale/codecvt/codecvt_unicode_char8_t.cc: New
+ test.
+
+2023-09-29 Nathaniel Shead <nathanieloshead@gmail.com>
+
+ * include/bits/basic_string.h: (basic_string(basic_string&&)):
+ Activate _M_local_buf when needed.
+ (basic_string(basic_string&&, const _Alloc&)): Likewise.
+ * include/bits/basic_string.tcc: (basic_string::swap): Likewise.
+ * include/std/variant: (__detail::__variant::__construct_n): New.
+ (__detail::__variant::__emplace): Use __construct_n.
+
+2023-09-28 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py (Printer.add_version)
+ (add_one_template_type_printer)
+ (FilteringTypePrinter.add_one_type_printer): Use Python
+ "not in" operator.
+
+2023-09-28 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py (std_ratio_t_tuple):
+ Remove.
+
+2023-09-28 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py
+ (StdExpOptionalPrinter.__init__, lookup_node_type):
+ Remove unused variables.
+
+2023-09-28 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py: Don't import 'os'.
+ * python/libstdcxx/v6/__init__.py: Don't import 'gdb'.
+
+2023-09-28 Tom Tromey <tromey@adacore.com>
+
+ * python/libstdcxx/v6/printers.py: Use gdb.ValuePrinter
+ everywhere. Rename members to start with "_".
+
+2023-09-28 Tom Tromey <tromey@adacore.com>
+
+ * testsuite/lib/gdb-test.exp (gdb-test): Enable Python
+ stack traces from gdb.
+
+2023-09-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * python/libstdcxx/v6/xmethods.py (is_specialization_of): Define
+ new function.
+ (ArrayMethodsMatcher, DequeMethodsMatcher)
+ (ForwardListMethodsMatcher, ListMethodsMatcher)
+ (VectorMethodsMatcher, AssociativeContainerMethodsMatcher)
+ (UniquePtrGetWorker, UniquePtrMethodsMatcher)
+ (SharedPtrSubscriptWorker, SharedPtrMethodsMatcher): Use
+ is_specialization_of instead of re.match.
+
+2023-09-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * python/libstdcxx/v6/printers.py: Break long lines. Use raw
+ strings for regular expressions. Add whitespace around
+ operators.
+ (is_member_of_namespace): Use isinstance to check type.
+ (is_specialization_of): Likewise. Adjust template_name
+ for versioned namespace instead of duplicating the re.match
+ call.
+ (StdExpAnyPrinter._string_types): New static method.
+ (StdExpAnyPrinter.to_string): Use _string_types.
+
+2023-09-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * python/libstdcxx/v6/printers.py: Format docstrings according
+ to PEP 257.
+ * python/libstdcxx/v6/xmethods.py: Likewise.
+
+2023-09-28 Tim Song <t.canens.cpp@gmail.com>
+
+ PR libstdc++/111050
+ * include/bits/hashtable_policy.h
+ (_Hash_node_value_base<>::_M_valptr(), _Hash_node_value_base<>::_M_v())
+ Add [[__gnu__::__always_inline__]].
+
+2023-09-27 Jonathan Wakely <jwakely@redhat.com>
+
+ * python/libstdcxx/v6/printers.py (StdChronoTimeZoneRulePrinter):
+ Fix incorrect number of replacement fields.
+
+2023-09-26 Hans-Peter Nilsson <hp@axis.com>
+
+ * testsuite/29_atomics/atomic_flag/cons/value_init.cc: Add
+ dg-require-thread-fence.
+
+2023-09-25 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/charconv (__detail::__integer_to_chars_result_type):
+ Remove.
+ (__detail::__to_chars_16): Use to_chars_result as return type.
+ (__detail::__to_chars_10): Likewise.
+ (__detail::__to_chars_8): Likewise.
+ (__detail::__to_chars_2): Likewise.
+ (__detail::__to_chars_i): Likewise.
+ (__detail::__integer_from_chars_result_type): Inline the
+ constraint into ...
+ (from_chars): ... here. Use __is_standard_integer in the
+ constraint. Encode constraint as a defaulted non-type template
+ parameter instead of within the return type.
+
+2023-09-25 John David Anglin <danglin@gcc.gnu.org>
+
+ * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update.
+
+2023-09-25 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/111511
+ PR c++/111512
+ * include/std/array (to_array): Cast memcpy arguments to void*.
+ * testsuite/23_containers/array/creation/111512.cc: New test.
+
+2023-09-25 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/move.h (forward_list): Define for C++23.
+ * include/bits/version.def (forward_like): Define.
+ * include/bits/version.h: Regenerate.
+ * include/std/utility (__glibcxx_want_forward_like): Define.
+ * testsuite/20_util/forward_like/1.cc: New test.
+ * testsuite/20_util/forward_like/2_neg.cc: New test.
+ * testsuite/20_util/forward_like/version.cc: New test.
+
2023-09-19 Marek Polacek <polacek@redhat.com>
* testsuite/20_util/allocator/105975.cc: Add dg-error.
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