+2023-06-02 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/parallel/algobase.h: Include <parallel/search.h>.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
+ Add const to equality operator.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/expected (expected::and_then, expected::or_else)
+ (expected::transform_error): Use _M_val and _M_unex instead of
+ calling value() and error(), as per LWG 3938.
+ (expected::transform): Likewise. Remove incorrect std::move
+ calls from lvalue overloads.
+ (expected<void, E>::and_then, expected<void, E>::or_else)
+ (expected<void, E>::transform): Use _M_unex instead of calling
+ error().
+ * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
+ and transform, and for std::expected<void, E>.
+ * testsuite/20_util/expected/lwg3938.cc: New test.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/110060
+ * include/bits/stl_vector.h (_Vector_base::_M_invariant):
+ Remove.
+ (vector::size, vector::capacity): Remove calls to _M_invariant.
+ * include/bits/vector.tcc (vector::_M_fill_assign): Add
+ optimization hint to reallocating path.
+ (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
+ Likewise.
+ * testsuite/23_containers/vector/capacity/invariant.cc: Moved
+ to...
+ * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
+ ...here. Check assign(FwdIter, FwdIter) too.
+ * testsuite/23_containers/vector/types/1.cc: Revert addition
+ of -Wno-stringop-overread option.
+
+2023-06-01 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/evolution.xml: Document removal of implicit
+ allocator rebinding extensions in strict mode and for C++20.
+ * doc/html/*: Regenerate.
+
+2023-06-01 Jason Merrill <jason@redhat.com>
+
+ * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
+ handlers in the cleanup phase.
+
+2023-06-01 Matthias Kretz <m.kretz@gsi.de>
+
+ PR libstdc++/110050
+ * include/experimental/bits/simd.h (__vectorized_sizeof): With
+ __have_neon_a32 only single-precision float works (in addition
+ to integers).
+
+2023-06-01 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/bits/stl_algo.h
+ (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
+ * include/bits/stl_algobase.h: ...here.
+ * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
+ * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
+ (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
+ Move...
+ * include/parallel/algobase.h: ...here.
+ * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
+ includes. Include <bits/stl_algobase.h>.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109818
+ * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
+ float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * include/c_global/cmath (float_t, double_t): Guard using new
+ _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
+ functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
+ for C99 rounding functions to here.
+ (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
+ functions from here.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
+ of _GLIBCXX_USE_C99_MATH_TR1.
+ * include/bits/random.tcc: Likewise.
+ * include/c_compatibility/math.h: Likewise.
+ * include/c_global/cmath: Likewise.
+ * include/ext/random: Likewise.
+ * include/ext/random.tcc: Likewise.
+ * include/std/complex: Likewise.
+ * testsuite/20_util/from_chars/4.cc: Likewise.
+ * testsuite/20_util/from_chars/8.cc: Likewise.
+ * testsuite/26_numerics/complex/proj.cc: Likewise.
+ * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
+ * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
+ Likewise.
+ * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
+ Likewise.
+ * testsuite/util/testsuite_random.h: Likewise.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
+ function.
+ (vector::size(), vector::capacity()): Call _M_invariant().
+ * testsuite/23_containers/vector/capacity/invariant.cc: New test.
+ * testsuite/23_containers/vector/types/1.cc: Add suppression for
+ false positive warning (PR110060).
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109921
+ * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
+ defined before trying to use _Float128.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
+ to check __INT_PTR_WIDTH__ instead of sizeof(void*).
+ * configure: Regenerate.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/unique_lock.h: Include <bits/error_constants.h>
+ here for std::errc constants.
+ * include/std/mutex: Do not include <bits/error_constants.h> and
+ <exception> here.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * configure.ac: Replace use of -o operator for test.
+ * configure: Regenerate.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/scoped_allocator (scoped_allocator_adaptor): Add
+ noexcept to all constructors except the default constructor.
+ (scoped_allocator_adaptor::inner_allocator): Add noexcept.
+ (scoped_allocator_adaptor::outer_allocator): Likewise.
+ * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/104772
+ * include/std/limits (numeric_limits<__float128>): Define.
+ * testsuite/18_support/numeric_limits/128bit.cc: New test.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
+ msp430 to all 16-bit targets.
+ * configure: Regenerate.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109921
+ * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
+ Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
+ (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
+ binary64.
+ (from_chars(const char*, const char*, double&, chars_format)):
+ Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
+ (from_chars(const char*, const char*, _Float128&, chars_format))
+ Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
+ defined, otherwise parse a long double and convert to _Float128.
+
+2023-05-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109922
+ * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
+ Add deprecated attribute to non-standard overload.
+ * doc/xml/manual/evolution.xml: Document deprecation.
+ * doc/html/*: Regenerate.
+ * testsuite/27_io/manipulators/standard/char/1.cc: Add
+ dg-warning for expected deprecated warning.
+ * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
+ * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
+ * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
+
+2023-05-30 Alexandre Oliva <oliva@adacore.com>
+
+ * testsuite/20_util/from_chars/4.cc: Skip long double test06
+ on x86_64-vxworks.
+ * testsuite/20_util/to_chars/long_double.cc: Xfail run on
+ x86_64-vxworks.
+
+2023-05-30 Matthias Kretz <m.kretz@gsi.de>
+
+ PR libstdc++/109822
+ * include/experimental/bits/simd.h (to_native): Use int NTTP
+ as specified in PTS2.
+ (to_compatible): Likewise. Add missing tag to call mask
+ generator ctor.
+ * testsuite/experimental/simd/pr109822_cast_functions.cc: New
+ test.
+
+2023-05-30 Matthias Kretz <m.kretz@gsi.de>
+
+ * testsuite/experimental/simd/tests/integer_operators.cc:
+ Compute expected value differently to avoid getting turned into
+ a vector shift.
+
+2023-05-30 Matthias Kretz <m.kretz@gsi.de>
+
+ * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
+ double <-> (u)long conversion tests conditional on sizeof(long
+ double) and sizeof(long).
+
+2023-05-26 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
+ Negative __y is UB, so prefer signed compare.
+
+2023-05-25 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/util/testsuite_allocator.h (PointerBase): Add
+ relational operators.
+
+2023-05-25 Alexandre Oliva <oliva@adacore.com>
+
+ * testsuite/20_util/to_chars/long_double.cc: Expect execution
+ fail on x86-vxworks.
+
+2023-05-24 Matthias Kretz <m.kretz@gsi.de>
+
+ PR libstdc++/109949
+ * include/experimental/bits/simd.h (__intrinsic_type): If
+ __ALTIVEC__ is defined, map gnu::vector_size types to their
+ corresponding __vector T types without losing unsignedness of
+ integer types. Also prefer long long over long.
+ * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
+ object to the expected unsigned vector type.
+
+2023-05-24 Matthias Kretz <m.kretz@gsi.de>
+
+ PR libstdc++/109261
+ * include/experimental/bits/simd.h (__intrinsic_type):
+ Specialize __intrinsic_type<double, 8> and
+ __intrinsic_type<double, 16> in any case, but provide the member
+ type only with __aarch64__.
+
+2023-05-24 Matthias Kretz <m.kretz@gsi.de>
+
+ PR libstdc++/109261
+ * include/experimental/bits/simd_neon.h (_S_reduce): Add
+ constexpr and make NEON implementation conditional on
+ not __builtin_is_constant_evaluated.
+
+2023-05-23 Matthias Kretz <m.kretz@gsi.de>
+
+ PR libstdc++/109261
+ * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
+ Avoid vector builtin subscripting in constant expressions.
+ (resizing_simd_cast): Avoid memcpy if constant_evaluated.
+ (const_where_expression, where_expression, where)
+ (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
+ _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
+ internal APIs).
+ * include/experimental/bits/simd_builtin.h (__vector_permute)
+ (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
+ (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
+ (_MaskImplBuiltin::_S_store): Add constexpr.
+ (_CommonImplBuiltin::_S_store_bool_array)
+ (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
+ (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
+ constant_evaluated case.
+ * include/experimental/bits/simd_fixed_size.h
+ (_S_masked_load): Reword comment.
+ (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
+ (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
+ (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
+ (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
+ (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
+ constexpr.
+ (_SimdTuple::operator[], _M_set): Add constexpr and add
+ constant_evaluated case.
+ (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
+ * include/experimental/bits/simd_scalar.h: Add constexpr.
+ * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
+ constexpr and add constant_evaluated case.
+ (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
+ (_S_less_equal): Value-initialize to satisfy constexpr
+ evaluation.
+ (_MaskImplX86::_S_load): Add constant_evaluated case.
+ (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
+ case. Value-initialize local variables.
+ (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
+ (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
+ case.
+ * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
+ test.
+
+2023-05-22 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
+ __infn into #ifdef'ed block.
+ * testsuite/experimental/simd/tests/fpclassify.cc: Declare
+ constants only when used.
+ * testsuite/experimental/simd/tests/frexp.cc: Likewise.
+ * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
+ * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
+ Likewise.
+ * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
+ Move totest and expect1 into #ifdef'ed block.
+
+2023-05-19 Gerald Pfeifer <gerald@pfeifer.com>
+
+ * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
+ * doc/html/manual/strings.html: Regenerate.
+
+2023-05-17 Jakub Jelinek <jakub@redhat.com>
+
+ PR libstdc++/109883
+ * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
+
+2023-05-17 Jakub Jelinek <jakub@redhat.com>
+
+ PR libstdc++/109883
+ * include/c_global/cmath (atan2, fmod, pow): Move
+ __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
+ __gnu_cxx::__bfloat16_t overloads.
+ (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
+ Likewise.
+ (fma): Move __gnu_cxx::__promote_3 using template after
+ _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
+
+2023-05-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
+ checks for float_round_style and float_denorm_style.
+
+2023-05-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/c++config: Add system_header pragma.
+
+2023-05-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/expected (expected::and_then, expected::or_else)
+ (expected::transform, expected::transform_error): Fix exception
+ specifications as per LWG 3877.
+ (expected<void, E>::and_then, expected<void, E>::transform):
+ Likewise.
+ * testsuite/20_util/expected/lwg3877.cc: New test.
+
+2023-05-17 Ken Matsui <kmatsui@cs.washington.edu>
+
+ * include/std/type_traits: Use __bool_constant instead of
+ integral_constant.
+
+2023-05-17 Jonathan Wakely <jwakely@redhat.com>
+
+ * configure: Regenerate.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109741
+ * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
+ * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
+ align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
+ instead of hardcoded 64.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
+ mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
+ functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
+ instead of _GLIBCXX_USE_C99_FENV_TR1.
+ * include/c_global/cfenv: Likewise.
+ * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
+ of _GLIBCXX_USE_C99_CTYPE_TR1.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
+ C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
+ <inttypes.h> features in C++11 mode and define
+ _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
+ * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
+ of _GLIBCXX_USE_C99_STDINT_TR1.
+ * include/c_compatibility/inttypes.h: Check
+ _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
+ instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
+ _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
+ * include/c_compatibility/stdatomic.h: Check
+ _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
+ * include/c_compatibility/stdint.h: Likewise.
+ * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
+ and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
+ _GLIBCXX_USE_C99_INTTYPES_TR1 and
+ _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
+ * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
+ instead of _GLIBCXX_USE_C99_STDINT_TR1.
+ * include/std/atomic: Likewise.
+ * src/c++11/cow-stdexcept.cc: Likewise.
+ * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
+ Likewise.
+ * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
+ Likewise.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
+ functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+ * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
+ * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
+ instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
+ assertion to ensure expected exception is throw.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
+ printer for chrono::zoned_time for cx11 ABI and tzdb effective
+ target.
+
+2023-05-16 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
+ _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
+ * configure: Regenerate.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
+ to check for nan, nanf, and nanl.
+ * configure: Regenerate.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/char_traits.h (char_traits<char16_t>): Do not
+ depend on _GLIBCXX_USE_C99_STDINT_TR1.
+ (char_traits<char32_t>): Likewise.
+ * include/experimental/source_location: Likewise.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
+ (atomic_int_least16_t, atomic_uint_least16_t)
+ (atomic_int_least32_t, atomic_uint_least32_t)
+ (atomic_int_least64_t, atomic_uint_least64_t)
+ (atomic_int_fast16_t, atomic_uint_fast16_t)
+ (atomic_int_fast32_t, atomic_uint_fast32_t)
+ (atomic_int_fast64_t, atomic_uint_fast64_t)
+ (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
+ * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/algorithmfwd.h (shuffle): Do not depend on
+ _GLIBCXX_USE_C99_STDINT_TR1.
+ * include/bits/ranges_algo.h (shuffle): Likewise.
+ * include/bits/stl_algo.h (shuffle): Likewise.
+ * include/ext/random: Likewise.
+ * include/ext/throw_allocator.h (random_condition): Likewise.
+ * include/std/random: Likewise.
+ * src/c++11/cow-string-inst.cc: Likewise.
+ * src/c++11/random.cc: Likewise.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/experimental/feat-cxx14.cc: Remove dependency on
+ _GLIBCXX_USE_C99_STDINT_TR1.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
+ on _GLIBCXX_USE_C99_STDINT_TR1.
+
+2023-05-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
+ dependency on _GLIBCXX_USE_C99_STDINT_TR1.
+ * testsuite/experimental/string_view/typedefs.cc: Likewise.
+
+2023-05-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
+ (auto_locale, auto_ferounding): New class types.
+ (from_chars_impl): Use auto_locale and auto_ferounding.
+
+2023-05-11 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109772
+ * include/std/chrono (hh_mm_ss::__fits): Remove variable
+ template.
+ (hh_mm_ss::__subseconds): Remove __fits from constraints.
+ * testsuite/std/time/hh_mm_ss/109772.cc: New test.
+ * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
+ hh_mm_ss<duration<int, std::pico>>.
+
+2023-05-11 Jonathan Wakely <jwakely@redhat.com>
+
+ * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
+ * include/bits/basic_ios.h: Add static assertion checking
+ traits_type::value_type.
+ * include/bits/basic_string.h: Likewise. Do not rebind
+ allocator, and add static assertion checking its value_type.
+ (basic_string::_Alloc_traits_impl): Remove class template.
+ (basic_string::_S_allocate): New static member function.
+ (basic_string::assign): Use _S_allocate.
+ * include/bits/basic_string.tcc (basic_string::_M_create)
+ (basic_string::reserve, basic_string::_M_replace): Likewise.
+ * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
+ Disable for C++20 and later.
+ * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
+ Likweise.
+
+2023-05-11 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109758
+ * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
+ and negative zero correctly.
+ * testsuite/26_numerics/headers/cmath/109758.cc: New test.
+
+2023-05-10 François Dumont <fdumont@gcc.gnu.org>
+
+ * include/bits/hashtable_policy.h
+ (_NodeBuilder<>::_S_build): Use __node_ptr.
+ (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
+ (_AllocNode<>): Likewise.
+ (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
+ to call std::is_permutation in the non-unique key implementation.
+ * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
+ _M_begin() once.
+ (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
+ (_Hashtable<>::_M_insert_bucket_begin): Likewise.
+ (_Hashtable<>::_M_remove_bucket_begin): Likewise.
+ (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
+ const_iterator.
+ (_Hashtable<>::find): Likewise.
+ (_Hashtable<>::_M_emplace): Likewise.
+ (_Hashtable<>::_M_insert_unique): Likewise.
+
+2023-05-09 Jonathan Wakely <jwakely@redhat.com>
+
+ * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
+ Print floating-point durations correctly.
+ (StdChronoTimePointPrinter): Support printing only the value,
+ not the type name. Uncomment handling for known clocks.
+ (StdChronoZonedTimePrinter): Remove type names from output.
+ (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
+ (StdChronoTimeZonePrinter): Add equals sign to output.
+ * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
+
+2023-05-05 Alexandre Oliva <oliva@adacore.com>
+
+ * testsuite/20_util/from_chars/4.cc: Skip long double test06
+ on aarch64-vxworks.
+ * testsuite/20_util/to_chars/long_double.cc: Xfail run on
+ aarch64-vxworks.
+
+2023-05-04 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/abi.xml (abi.versioning.history): Document
+ libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
+ * doc/html/manual/abi.html: Regenerate.
+
+2023-05-04 Florian Weimer <fweimer@redhat.com>
+
+ * doc/xml/manual/abi.xml (abi.versioning.history): Add
+ GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
+ libgcc_s.
+
+2023-05-03 Jakub Jelinek <jakub@redhat.com>
+
+ * src/c++17/floating_from_chars.cc
+ (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
+ _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
+ * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
+ _ZSt8to_charsPcS_u9__ieee128.
+ (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
+ _ZSt8to_charsPcS_u9__ieee128St12chars_format.
+ (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
+ _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
+ * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
+
+2023-05-03 Jakub Jelinek <jakub@redhat.com>
+
+ * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
+ rather than powerpc64-linux-gnu for powerpc64le*-linux*.
+ * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
+ _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
+ GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
+ versions.
+ * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
+ file.
+
+2023-05-03 Kefu Chai <kefu.chai@scylladb.com>
+ Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109703
+ * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
+ Initialize _M_string_length.
+
+2023-05-02 Jakub Jelinek <jakub@redhat.com>
+
+ * config/abi/post/aarch64-linux-gnu/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/powerpc64-linux-gnu/baseline_symbols.txt: Update.
+ * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
+ * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
+ * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
+ * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
+
+2023-05-02 Jakub Jelinek <jakub@redhat.com>
+
+ PR libstdc++/109694
+ * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
+ -Wattribute-alias.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/random.h (gamma_distribution): Add to the right
+ doxygen group.
+ (discrete_distribution, piecewise_constant_distribution)
+ (piecewise_linear_distribution): Create a new doxygen group and
+ fix the incomplete doxygen comments.
+ * include/bits/uniform_int_dist.h (uniform_int_distribution):
+ Add to doxygen group.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/uses_allocator.h: Add missing @file comment.
+ * include/bits/regex.tcc: Remove stray doxygen comments.
+ * include/experimental/memory_resource: Likewise.
+ * include/std/bit: Tweak doxygen @cond comments.
+ * include/std/expected: Likewise.
+ * include/std/numbers: Likewise.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
+ from header paths.
+
+2023-04-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/move.h: Simplify opening/closing namespace std.
+
+2023-04-28 Jakub Jelinek <jakub@redhat.com>
+
+ PR libstdc++/108969
+ * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
+ _ZSt21ios_base_library_initv.
+ * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
+ symver and make it the latestp.
+ * src/c++98/ios_init.cc (ios_base_library_init): New alias.
+ * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
+ * include/std/iostream: If init_priority attribute is supported
+ and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
+ symbol into the object.
+ * configure: Regenerated.
+
+2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
+ * include/std/format: Likewise.
+
+2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
+ (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
+
+2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
+ HTML docs.
+ * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
+ from doxygen docs.
+ * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
+ Likewise.
+ * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
+ Likewise.
+ * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
+ Likewise.
+ * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
+ (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
+ (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
+ (_DEFINE_BINARY_OPERATOR): Likewise.
+
+2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/memory_resource.h: Improve doxygen comments.
+ * include/std/memory_resource: Likewise.
+
+2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/40380
+ * include/bits/basic_string.h: Improve doxygen comments.
+ * include/bits/cow_string.h: Likewise.
+ * include/bits/forward_list.h: Likewise.
+ * include/bits/fs_dir.h: Likewise.
+ * include/bits/fs_path.h: Likewise.
+ * include/bits/quoted_string.h: Likewise.
+ * include/bits/stl_bvector.h: Likewise.
+ * include/bits/stl_map.h: Likewise.
+ * include/bits/stl_multimap.h: Likewise.
+ * include/bits/stl_multiset.h: Likewise.
+ * include/bits/stl_set.h: Likewise.
+ * include/bits/stl_vector.h: Likewise.
+ * include/bits/unordered_map.h: Likewise.
+ * include/bits/unordered_set.h: Likewise.
+ * include/std/filesystem: Likewise.
+ * include/std/iomanip: Likewise.
+
+2023-04-27 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/105081
+ * src/c++11/random.cc (__throw_syserr): New function.
+ (random_device::_M_init, random_device::_M_init_pretr1): Use new
+ function for bad tokens.
+ (random_device::_M_getval): Use new function for read errors.
+ * testsuite/util/testsuite_random.h (random_device_available):
+ Change catch handler to use std::system_error.
+
+2023-04-24 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/max_size_type.h (__max_diff_type::operator>>=):
+ Fix propagation of sign bit.
+ * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
+ non-standard 'signed typedef-name'. Add some compile-time tests
+ for right-shifting a negative __max_diff_type value by more than
+ one.
+
+2023-04-19 Patrick Palka <ppalka@redhat.com>
+ Jonathan Wakely <jwakely@redhat.com>
+
+ PR c++/100157
+ * include/bits/utility.h (_Nth_type): Conditionally define in
+ terms of __type_pack_element if available.
+ * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
+ additional errors from the new built-in.
+
+2023-04-19 Jonathan Wakely <jwakely@redhat.com>
+
+ Revert:
+ 2023-04-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/108969
+ * src/Makefile.am: Move globals_io.cc to here.
+ * src/Makefile.in: Regenerate.
+ * src/c++98/Makefile.am: Remove globals_io.cc from here.
+ * src/c++98/Makefile.in: Regenerate.
+ * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
+ symbol name and then export with GLIBCXX_3.4.31 symver.
+ (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
+ * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/pre/gnu.ver: Add iostream objects to new symver.
+
+2023-04-19 Jonathan Wakely <jwakely@redhat.com>
+
+ Revert:
+ 2023-04-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/108969
+ * config/abi/pre/gnu.ver: Fix preprocessor condition.
+
+2023-04-18 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/extensions.xml: Fix example to declare and
+ qualify std::free, and use NULL instead of 0.
+ * doc/html/manual/ext_demangling.html: Regenerate.
+ * libsupc++/cxxabi.h: Adjust doxygen comments.
+
+2023-04-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/108969
+ * config/abi/pre/gnu.ver: Fix preprocessor condition.
+
+2023-04-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/108969
+ * src/Makefile.am: Move globals_io.cc to here.
+ * src/Makefile.in: Regenerate.
+ * src/c++98/Makefile.am: Remove globals_io.cc from here.
+ * src/c++98/Makefile.in: Regenerate.
+ * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
+ symbol name and then export with GLIBCXX_3.4.31 symver.
+ (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
+ * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
+ Regenerate.
+ * config/abi/pre/gnu.ver: Add iostream objects to new symver.
+
+2023-04-18 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/108827
+ * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
+ for C++23.
+ * include/std/ranges (range_adaptor_closure): Define for C++23.
+ * include/std/version (__cpp_lib_ranges): Bump value for
+ C++23.
+ * testsuite/std/ranges/version_c++23.cc: Bump expected value
+ of __cpp_lib_ranges.
+ * testsuite/std/ranges/range_adaptor_closure.cc: New test.
+
+2023-04-18 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
+ Define for C++23.
+ (__cpp_lib_ranges_iota): Likewise.
+ (__cpp_lib_ranges_find_last): Likewise.
+ (__cpp_lib_fold): Rename to ...
+ (__cpp_lib_ranges_fold): ... this.
+ * include/std/version: As above.
+ * testsuite/25_algorithms/fold_left/1.cc: Adjust after
+ renaming __cpp_lib_fold.
+ * testsuite/std/ranges/version_c++23.cc: Verify values
+ of the above feature-test macros.
+
+2023-04-18 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/109525
+ * include/std/ranges (views::_AsConst::operator()): Add
+ missing const to constant_range test.
+ * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
+ Improve formatting. Adjust expected type of v2.
+ (test03): New test.
+
+2023-04-14 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
+ (const_sentinel_t): Likewise.
+ (range_const_reference_t): Likewise.
+ (constant_range): Likewise.
+ (__cust_access::__possibly_const_range): Likewise, replacing ...
+ (__cust_access::__as_const): ... this.
+ (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
+ (__cust_access::_CEnd::operator()): Likewise.
+ (__cust_access::_CRBegin::operator()): Likewise.
+ (__cust_access::_CREnd::operator()): Likewise.
+ (__cust_access::_CData::operator()): Likewise.
+ * include/bits/ranges_util.h (ranges::__detail::__different_from):
+ Make it an alias of std::__detail::__different_from.
+ (view_interface::cbegin): Define for C++23.
+ (view_interface::cend): Likewise.
+ * include/bits/stl_iterator.h (__detail::__different_from): Define.
+ (iter_const_reference_t): Define for C++23.
+ (__detail::__constant_iterator): Likewise.
+ (__detail::__is_const_iterator): Likewise.
+ (__detail::__not_a_const_iterator): Likewise.
+ (__detail::__iter_const_rvalue_reference_t): Likewise.
+ (__detail::__basic_const_iter_cat):: Likewise.
+ (const_iterator): Likewise.
+ (__detail::__const_sentinel): Likewise.
+ (const_sentinel): Likewise.
+ (basic_const_iterator): Likewise.
+ (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
+ (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
+ (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
+ Likewise.
+ (make_const_iterator): Define for C++23.
+ (make_const_sentinel): Likewise.
+ * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
+ (as_const_view): Likewise.
+ (enable_borrowed_range<as_const_view>): Likewise.
+ (views::__detail::__is_ref_view): Likewise.
+ (views::__detail::__can_is_const_view): Likewise.
+ (views::_AsConst, views::as_const): Likewise.
+ * include/std/span (span::const_iterator): Likewise.
+ (span::const_reverse_iterator): Likewise.
+ (span::cbegin): Likewise.
+ (span::cend): Likewise.
+ (span::crbegin): Likewise.
+ (span::crend): Likewise.
+ * include/std/version (__cpp_lib_ranges_as_const): Likewise.
+ * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
+ behave independently of C++20 vs C++23.
+ * testsuite/std/ranges/version_c++23.cc: Verify value of
+ __cpp_lib_ranges_as_const macro.
+ * testsuite/24_iterators/const_iterator/1.cc: New test.
+ * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
+
+2023-04-14 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/ranges_base.h (__cust_access::__as_const)
+ (__cust_access::_CBegin, __cust::cbegin)
+ (__cust_access::_CEnd, __cust::cend)
+ (__cust_access::_CRBegin, __cust::crbegin)
+ (__cust_access::_CREnd, __cust::crend)
+ (__cust_access::_CData, __cust::cdata): Move down definitions to
+ shortly after the definition of input_range.
+
+2023-04-14 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/ranges_algo.h: Include <optional> for C++23.
+ (__cpp_lib_fold): Define for C++23.
+ (in_value_result): Likewise.
+ (__detail::__flipped): Likewise.
+ (__detail::__indirectly_binary_left_foldable_impl): Likewise.
+ (__detail::__indirectly_binary_left_foldable): Likewise.
+ (___detail:__indirectly_binary_right_foldable): Likewise.
+ (fold_left_with_iter_result): Likewise.
+ (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
+ (__fold_left_fn, fold_left): Likewise.
+ (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
+ Likewise.
+ (__fold_left_first_fn, fold_left_first): Likewise.
+ (__fold_right_fn, fold_right): Likewise.
+ (__fold_right_last_fn, fold_right_last): Likewise.
+ * include/std/version (__cpp_lib_fold): Likewise.
+ * testsuite/25_algorithms/fold_left/1.cc: New test.
+ * testsuite/25_algorithms/fold_right/1.cc: New test.
+
+2023-04-14 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/format (formatter): Add comment to deleted default
+ constructor of primary template.
+ (_Checking_scanner): Add static_assert.
+
+2023-04-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/using.xml: Document libstdc++exp.a library.
+ * doc/html/*: Regenerate.
+
+2023-04-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
+ * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
+ namespace to avoid clashing with libc struct.
+ * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
+ Likewise.
+ * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
+ * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
+ * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
+ * testsuite/23_containers/unordered_set/96088.cc: Likewise.
+ * testsuite/experimental/synchronized_value.cc: Require gthreads
+ and add missing option for pthreads targets.
+
+2023-04-12 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/ranges (__cpp_lib_ranges_enumerate): Define
+ for C++23.
+ (__detail::__range_with_movable_reference): Likewise.
+ (enumerate_view): Likewise.
+ (enumerate_view::_Iterator): Likewise.
+ (enumerate_view::_Sentinel): Likewise.
+ (views::__detail::__can_enumerate_view): Likewise.
+ (views::_Enumerate, views::enumerate): Likewise.
+ * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
+ * testsuite/std/ranges/version_c++23.cc: Verify value of
+ __cpp_lib_ranges_enumerate.
+ * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
+
+2023-04-12 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
+ Propagate _M_trailing_empty in the const-converting constructor
+ as per LWG 3904.
+ * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
+ assertion.
+ * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
+
+2023-04-12 Patrick Palka <ppalka@redhat.com>
+
+ * src/c++17/floating_from_chars.cc: Include <algorithm>,
+ <iterator>, <limits> and <cstdint>.
+
+2023-04-12 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/108291
+ * include/std/ranges (chunk_by_view::_M_find_next): Generalize
+ parameter types of the lambda wrapper passed to adjacent_find.
+ (chunk_by_view::_M_find_prev): Likewise.
+ * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
+ New tests.
+
+2023-04-12 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109482
+ * include/experimental/internet (basic_endpoint::basic_endpoint()):
+ Ensure that the required union members are active. Only define
+ as constexpr for C++20 and later.
+ (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
+ Likewise.
+ * testsuite/experimental/net/internet/endpoint/cons.cc: Only
+ check constexpr default constructor for C++20 and later.
+ * testsuite/experimental/net/internet/endpoint/extensible.cc:
+ Likewise.
+
+2023-04-12 Jonathan Wakely <jwakely@redhat.com>
+
+ * src/c++20/tzdata.zi: Import new file from 2023c release.
+
+2023-04-05 Arsen Arsenović <arsen@aarsen.me>
+
+ * include/precompiled/stdc++.h (C++17): Don't double-include
+ <charconv>, once with wrong conditions.
+ * testsuite/18_support/96817.cc: Require hosted.
+ * testsuite/18_support/bad_exception/59392.cc: Ditto.
+ * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
+ * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
+ * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
+ Ditto.
+
+2023-04-05 Arsen Arsenović <arsen@aarsen.me>
+
+ * include/bits/c++config: When __STDC_HOSTED__ is zero,
+ disable _GLIBCXX_DEBUG and, if it was set, enable
+ _GLIBCXX_ASSERTIONS.
+ * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
+ Include <bits/c++config.h> when determining whether debug is
+ set, in order to inherit the logic from above
+
+2023-04-05 Arsen Arsenović <arsen@aarsen.me>
+
+ * testsuite/17_intro/versionconflict.cc: New test.
+ * include/std/version: Allow disabling the system_header pragma
+ via _GLIBCXX_TESTING_SYSHDR.
+
+2023-04-05 Arsen Arsenović <arsen@aarsen.me>
+
+ * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
+ Synchronize the definition block with...
+ * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
+ ... this one here. Also define the 202202L value, rather than
+ leaving it up to purely unique_ptr.h, so that the value is
+ synchronized across all headers.
+ (__gnu_debug::_Safe_iterator_base): Move into new conditional
+ block.
+ * include/std/memory (__cpp_lib_atomic_value_initialization):
+ Define on freestanding under the same conditions as in
+ atomic_base.h.
+ * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
+ Also define on freestanding.
+ (__cpp_lib_to_chars): Ditto.
+ (__cpp_lib_gcd): Ditto.
+ (__cpp_lib_gcd_lcm): Ditto.
+ (__cpp_lib_raw_memory_algorithms): Ditto.
+ (__cpp_lib_array_constexpr): Ditto.
+ (__cpp_lib_nonmember_container_access): Ditto.
+ (__cpp_lib_clamp): Ditto.
+ (__cpp_lib_constexpr_char_traits): Ditto.
+ (__cpp_lib_constexpr_string): Ditto.
+ (__cpp_lib_sample): Ditto.
+ (__cpp_lib_lcm): Ditto.
+ (__cpp_lib_constexpr_iterator): Ditto.
+ (__cpp_lib_constexpr_char_traits): Ditto.
+ (__cpp_lib_interpolate): Ditto.
+ (__cpp_lib_constexpr_utility): Ditto.
+ (__cpp_lib_shift): Ditto.
+ (__cpp_lib_ranges): Ditto.
+ (__cpp_lib_move_iterator_concept): Ditto.
+ (__cpp_lib_constexpr_numeric): Ditto.
+ (__cpp_lib_constexpr_functional): Ditto.
+ (__cpp_lib_constexpr_algorithms): Ditto.
+ (__cpp_lib_constexpr_tuple): Ditto.
+ (__cpp_lib_constexpr_memory): Ditto.
+
+2023-04-05 John David Anglin <danglin@gcc.gnu.org>
+
+ * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
+ timeout factor on hppa*-*-*.
+
+2023-04-05 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/regex.h (sub_match::swap): New function.
+ * testsuite/28_regex/sub_match/lwg3204.cc: New test.
+
+2023-04-04 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/xml/manual/extensions.xml: Remove std::bad_exception from
+ example program.
+ * doc/html/manual/ext_demangling.html: Regenerate.
+
+2023-03-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR tree-optimization/107087
+ * include/bits/cow_string.h (basic_string::size()): Add
+ optimizer hint that _S_empty_rep()._M_length is always zero.
+ (basic_string::length()): Call size().
+
+2023-03-31 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109339
+ * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
+ Add attribute access with access-mode 'none'.
+ * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
+
+2023-03-31 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
+ Revert change from member function to data member. Fix for
+ constant evaluation by detecting which union member is active.
+ (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
+ flag.
+
+2023-03-29 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109242
+ * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
+ * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
+
+2023-03-29 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/experimental/internet (ip::make_address): Implement
+ missing overload.
+ (ip::address_v4::broadcast()): Avoid undefined shift.
+ (ip::basic_endpoint): Fix member functions for constexpr.
+ (ip::basic_endpoint::_M_is_v6): Replace member function with
+ data member, adjust member functions using it.
+ (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
+ content.
+ * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
+ constexpr checks to work in C++14.
+ * testsuite/experimental/net/internet/address/v4/creation.cc:
+ Likewise.
+ * testsuite/experimental/net/internet/endpoint/cons.cc:
+ Likewise.
+ * testsuite/experimental/net/internet/network/v4/cons.cc:
+ Likewise.
+ * testsuite/experimental/net/internet/network/v4/members.cc:
+ Likewise.
+ * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
+
+2023-03-29 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/expected (expected::value() &): Use const lvalue
+ for unex member passed to bad_expected_access constructor, as
+ per LWG 3843.
+
+2023-03-29 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109340
+ * include/std/expected (expected::transform): Use
+ std::remove_cv_t instead of std::remove_cvref_t.
+ (expected::transform_error): Likewise.
+ (expected<cv void, E>::transform): Likewise.
+ (expected<cv void, E>::transform_error): Likewise.
+ * include/std/optional (transform): Use std::remove_cv_t.
+ * testsuite/20_util/optional/monadic/pr109340.cc: New test.
+
+2023-03-29 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/optional (optional): Adjust static assertion to
+ reject arrays and functions as well as references.
+ * testsuite/20_util/optional/requirements_neg.cc: New test.
+
+2023-03-28 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/103387
+ * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
+ std::use_facet instead of cached _M_num_get facet.
+ (istream::operator>>(short&)): Likewise.
+ (istream::operator>>(int&)): Likewise.
+ * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
+ std::use_facet instead of cached _M_num_put facet.
+
+2023-03-28 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/char_traits.h (char_traits::copy): Return without
+ using memcpy if n==0.
+ (char_traits::assign): Likewise for memset.
+
+2023-03-28 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109299
+ * include/bits/basic_string.h (basic_string::_M_is_local()): Add
+ hint for compiler that local strings fit in the local buffer.
+
+2023-03-28 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109288
+ * include/std/chrono (__detail::__get_leap_second_info): Update
+ expiry date of hardcoded leapseconds list.
+ * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
+ Likewise.
+ * src/c++20/tzdata.zi: Import new file from 2023a release.
+ * testsuite/std/time/time_zone/get_info_local.cc: Only check
+ transitions for Egypt up to 2014.
+
+2023-03-28 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd.h (is_simd_flag_type): New.
+ (_IsSimdFlagType): New.
+ (copy_from, copy_to, load ctors): Constrain _Flags using
+ _IsSimdFlagType.
+
+2023-03-28 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
+ _Base::_S_divides if the optimized _S_divides function is hidden
+ via the preprocessor.
+
+2023-03-27 Jakub Jelinek <jakub@redhat.com>
+
+ * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
+ warning if size_t is not unsigned long.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
+ Add overload, as per LWG 3893.
+ * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
+ Check assignment from nullptr.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/format (formatter<const charT[N], charT>): Do not
+ define partial speclialization, as per LWG 3833.
+ * testsuite/std/format/formatter/requirements.cc: Check it.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
+ as per LWG 3792.
+ * testsuite/20_util/exchange/constexpr.cc: Check for it.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/version (__cpp_lib_format): Define.
+ * testsuite/std/format/functions/format.cc: Check it.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
+ Pass rvalues to the callback, as now allowed by LWG 3645.
+ Enforce preconditions on the return value.
+ * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
+ Adjust.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/std/format: Add a comment noting that the resolution
+ of LWG 3720 has been applied..
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/regex.h (match_results): Add allocator-extended
+ copy and move constructors, as per LWG 2195.
+ * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
+
+2023-03-22 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/stream_iterator.h (istream_iterator): Add
+ constexpr to copy constructor, as per LWG 3600.
+ * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
+ Check copy construction.
+
+2023-03-21 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd_x86.h
+ (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
+ with __RECIPROCAL_MATH__.
+
+2023-03-21 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd_detail.h: Don't define
+ _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
+ * include/experimental/bits/simd_x86.h (_S_divides): Remove
+ check for __clang__.
+
+2023-03-21 Matthias Kretz <m.kretz@gsi.de>
+
+ * include/experimental/bits/simd_detail.h: Don't declare the
+ simd API as constexpr with Clang.
+ * include/experimental/bits/simd_x86.h (__movm): New.
+ (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
+ and ?:.
+ (_SimdImplX86::_S_masked_unary): Clang does not implement the
+ same builtins. Implement the function using __movm, ?:, and -
+ operators on vector_size types instead.
+
+2023-03-21 Matthias Kretz <m.kretz@gsi.de>
+
+ * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
+ define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
+
+2023-03-20 Jonathan Wakely <jwakely@redhat.com>
+
+ * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
+ formatting.
+
+2023-03-20 Marek Polacek <polacek@redhat.com>
+
+ PR c++/109159
+ * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
+ * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
+ * testsuite/23_containers/span/explicit.cc: Likewise.
+
+2023-03-20 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109182
+ * include/std/expected (expected<void>::expected(in_place_t)):
+ Remove template-head.
+
+2023-03-18 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109165
+ * testsuite/18_support/coroutines/hash.cc: Use const object
+ in second call.
+
+2023-03-17 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109165
+ * include/std/coroutine (hash<>::operator()): Add const.
+ * testsuite/18_support/coroutines/hash.cc: New test.
+
+2023-03-14 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/109111
+ * include/std/ranges (repeat_view): Remove redundant parentheses
+ in requires-clause.
+ (repeat_view::_Iterator): Correct the requires-clause.
+
+2023-03-14 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
+ Define.
+ (__cpp_lib_move_iterator_concept): Define for C++20.
+ (move_iterator::iterator_concept): Strengthen as per P2520R0.
+ * include/std/version (__cpp_lib_move_iterator_concept): Define
+ for C++20.
+ * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
+
+2023-03-14 Patrick Palka <ppalka@redhat.com>
+
+ * include/bits/ranges_util.h (view_interface::empty): Add
+ preferred overloads that use ranges::size when the range is
+ sized as per LWG 3715.
+ * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
+
+2023-03-14 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
+ Only define for C++17 and later.
+
+2023-03-14 Jonathan Wakely <jwakely@redhat.com>
+
+ * src/Makefile.am: Add comment about linker script fragments.
+ * src/Makefile.in: Regenerate.
+
+2023-03-14 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/62196
+ * include/bits/mask_array.h (mask_array): Add assertions to
+ assignment operators.
+ * include/std/valarray (valarray::operator[](valarray<bool>)):
+ Add assertions.
+ * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
+ * testsuite/26_numerics/valarray/mask.cc: New test.
+
+2023-03-13 Jakub Jelinek <jakub@redhat.com>
+
+ * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
+ * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
+
+2023-03-13 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/Makefile.am: Add comment referring to documentation.
+ * doc/Makefile.in: Regenerate.
+
+2023-03-13 Jonathan Wakely <jwakely@redhat.com>
+
+ * doc/html/*: Regenerate.
+
+2023-03-13 Jonny Grant <jg@jguk.org>
+
+ * doc/xml/faq.xml: Update copyright year.
+
+2023-03-13 Jonathan Wakely <jwakely@redhat.com>
+
+ * include/bits/allocator.h: Fix typo in comment.
+
+2023-03-12 Jakub Jelinek <jakub@redhat.com>
+
+ * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
+ if it isn't mangled as DF16b but u6__bf16.
+
+2023-03-12 Gerald Pfeifer <gerald@pfeifer.com>
+
+ * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
+ to https.
+ * doc/html/manual/documentation_hacking.html: Regenerate.
+
+2023-03-10 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/109064
+ * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
+ Remove self-recursion in __init__. Add missing _supports.
+ * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
+ and unique().
+
+2023-03-09 Patrick Palka <ppalka@redhat.com>
+
+ * include/std/ranges
+ (cartesian_product_view::_Iterator::_Iterator): Remove
+ constraint on default constructor as per LWG 3849.
+ (cartesian_product_view::_Iterator::_M_prev): Adjust position
+ of _Nm > 0 test as per LWG 3820.
+ (cartesian_product_view::_Iterator::_M_advance): Perform bounds
+ checking only on sized cartesian products.
+ * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
+
+2023-03-09 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/109024
+ * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
+ LWG 3796.
+ (repeat_view::_M_pred): Likewise.
+ * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
+ * testsuite/std/ranges/repeat/1.cc (test05): New test.
+
+2023-03-09 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/108362
+ * include/std/ranges (__detail::__can_single_view): New concept.
+ (_Single::operator()): Constrain it. Move [[nodiscard]] to the
+ end of the function declarator.
+ (__detail::__can_iota_view): New concept.
+ (_Iota::operator()): Constrain it. Move [[nodiscard]] to the
+ end of the function declarator.
+ (__detail::__can_istream_view): New concept.
+ (_Istream::operator()): Constrain it. Move [[nodiscard]] to the
+ end of the function declarator.
+ * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
+ * testsuite/std/ranges/istream_view.cc (test08): New test.
+ * testsuite/std/ranges/single_view.cc (test07): New test.
+
+2023-03-09 Patrick Palka <ppalka@redhat.com>
+
+ PR libstdc++/107572
+ * include/std/ranges (cartesian_product_view::end): When
+ building the tuple of iterators, avoid calling ranges::begin on
+ the first range if __empty_tail is false.
+ * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
+
+2023-03-09 Jonathan Wakely <jwakely@redhat.com>
+
+ PR libstdc++/108882
+ * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
+ patterns.
+
2023-03-07 Jakub Jelinek <jakub@redhat.com>
* config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
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