libstdc++-v3/ChangeLog

   1 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
   2
   3         * include/parallel/algobase.h: Include <parallel/search.h>.
   4
   5 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
   6
   7         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
   8         Add const to equality operator.
   9
  10 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
  11
  12         * include/std/expected (expected::and_then, expected::or_else)
  13         (expected::transform_error): Use _M_val and _M_unex instead of
  14         calling value() and error(), as per LWG 3938.
  15         (expected::transform): Likewise. Remove incorrect std::move
  16         calls from lvalue overloads.
  17         (expected<void, E>::and_then, expected<void, E>::or_else)
  18         (expected<void, E>::transform): Use _M_unex instead of calling
  19         error().
  20         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
  21         and transform, and for std::expected<void, E>.
  22         * testsuite/20_util/expected/lwg3938.cc: New test.
  23
  24 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
  25
  26         PR libstdc++/110060
  27         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
  28         Remove.
  29         (vector::size, vector::capacity): Remove calls to _M_invariant.
  30         * include/bits/vector.tcc (vector::_M_fill_assign): Add
  31         optimization hint to reallocating path.
  32         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
  33         Likewise.
  34         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
  35         to...
  36         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
  37         ...here. Check assign(FwdIter, FwdIter) too.
  38         * testsuite/23_containers/vector/types/1.cc: Revert addition
  39         of -Wno-stringop-overread option.
  40
  41 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
  42
  43         * doc/xml/manual/evolution.xml: Document removal of implicit
  44         allocator rebinding extensions in strict mode and for C++20.
  45         * doc/html/*: Regenerate.
  46
  47 2023-06-01  Jason Merrill  <jason@redhat.com>
  48
  49         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
  50         handlers in the cleanup phase.
  51
  52 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
  53
  54         PR libstdc++/110050
  55         * include/experimental/bits/simd.h (__vectorized_sizeof): With
  56         __have_neon_a32 only single-precision float works (in addition
  57         to integers).
  58
  59 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
  60
  61         * include/bits/stl_algo.h
  62         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
  63         * include/bits/stl_algobase.h: ...here.
  64         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
  65         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
  66         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
  67         Move...
  68         * include/parallel/algobase.h: ...here.
  69         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
  70         includes. Include <bits/stl_algobase.h>.
  71
  72 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
  73
  74         PR libstdc++/109818
  75         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
  76         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
  77         * config.h.in: Regenerate.
  78         * configure: Regenerate.
  79         * include/c_global/cmath (float_t, double_t): Guard using new
  80         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
  81
  82 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
  83
  84         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
  85         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
  86         for C99 rounding functions to here.
  87         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
  88         functions from here.
  89         * config.h.in: Regenerate.
  90         * configure: Regenerate.
  91         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
  92         of _GLIBCXX_USE_C99_MATH_TR1.
  93         * include/bits/random.tcc: Likewise.
  94         * include/c_compatibility/math.h: Likewise.
  95         * include/c_global/cmath: Likewise.
  96         * include/ext/random: Likewise.
  97         * include/ext/random.tcc: Likewise.
  98         * include/std/complex: Likewise.
  99         * testsuite/20_util/from_chars/4.cc: Likewise.
 100         * testsuite/20_util/from_chars/8.cc: Likewise.
 101         * testsuite/26_numerics/complex/proj.cc: Likewise.
 102         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
 103         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
 104         Likewise.
 105         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 106         Likewise.
 107         * testsuite/util/testsuite_random.h: Likewise.
 108
 109 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 110
 111         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
 112         function.
 113         (vector::size(), vector::capacity()): Call _M_invariant().
 114         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
 115         * testsuite/23_containers/vector/types/1.cc: Add suppression for
 116         false positive warning (PR110060).
 117
 118 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 119
 120         PR libstdc++/109921
 121         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
 122         defined before trying to use _Float128.
 123
 124 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 125
 126         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
 127         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
 128         * configure: Regenerate.
 129
 130 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 131
 132         * include/bits/unique_lock.h: Include <bits/error_constants.h>
 133         here for std::errc constants.
 134         * include/std/mutex: Do not include <bits/error_constants.h> and
 135         <exception> here.
 136
 137 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 138
 139         * configure.ac: Replace use of -o operator for test.
 140         * configure: Regenerate.
 141
 142 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 143
 144         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
 145         noexcept to all constructors except the default constructor.
 146         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
 147         (scoped_allocator_adaptor::outer_allocator): Likewise.
 148         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
 149
 150 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 151
 152         PR libstdc++/104772
 153         * include/std/limits (numeric_limits<__float128>): Define.
 154         * testsuite/18_support/numeric_limits/128bit.cc: New test.
 155
 156 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 157
 158         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
 159         msp430 to all 16-bit targets.
 160         * configure: Regenerate.
 161
 162 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 163
 164         PR libstdc++/109921
 165         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
 166         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
 167         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
 168         binary64.
 169         (from_chars(const char*, const char*, double&, chars_format)):
 170         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
 171         (from_chars(const char*, const char*, _Float128&, chars_format))
 172         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
 173         defined, otherwise parse a long double and convert to _Float128.
 174
 175 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 176
 177         PR libstdc++/109922
 178         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
 179         Add deprecated attribute to non-standard overload.
 180         * doc/xml/manual/evolution.xml: Document deprecation.
 181         * doc/html/*: Regenerate.
 182         * testsuite/27_io/manipulators/standard/char/1.cc: Add
 183         dg-warning for expected deprecated warning.
 184         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
 185         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
 186         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
 187
 188 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
 189
 190         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 191         on x86_64-vxworks.
 192         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 193         x86_64-vxworks.
 194
 195 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 196
 197         PR libstdc++/109822
 198         * include/experimental/bits/simd.h (to_native): Use int NTTP
 199         as specified in PTS2.
 200         (to_compatible): Likewise. Add missing tag to call mask
 201         generator ctor.
 202         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
 203         test.
 204
 205 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 206
 207         * testsuite/experimental/simd/tests/integer_operators.cc:
 208         Compute expected value differently to avoid getting turned into
 209         a vector shift.
 210
 211 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 212
 213         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
 214         double <-> (u)long conversion tests conditional on sizeof(long
 215         double) and sizeof(long).
 216
 217 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
 218
 219         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
 220         Negative __y is UB, so prefer signed compare.
 221
 222 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
 223
 224         * testsuite/util/testsuite_allocator.h (PointerBase): Add
 225         relational operators.
 226
 227 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
 228
 229         * testsuite/20_util/to_chars/long_double.cc: Expect execution
 230         fail on x86-vxworks.
 231
 232 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 233
 234         PR libstdc++/109949
 235         * include/experimental/bits/simd.h (__intrinsic_type): If
 236         __ALTIVEC__ is defined, map gnu::vector_size types to their
 237         corresponding __vector T types without losing unsignedness of
 238         integer types. Also prefer long long over long.
 239         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
 240         object to the expected unsigned vector type.
 241
 242 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 243
 244         PR libstdc++/109261
 245         * include/experimental/bits/simd.h (__intrinsic_type):
 246         Specialize __intrinsic_type<double, 8> and
 247         __intrinsic_type<double, 16> in any case, but provide the member
 248         type only with __aarch64__.
 249
 250 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 251
 252         PR libstdc++/109261
 253         * include/experimental/bits/simd_neon.h (_S_reduce): Add
 254         constexpr and make NEON implementation conditional on
 255         not __builtin_is_constant_evaluated.
 256
 257 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
 258
 259         PR libstdc++/109261
 260         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
 261         Avoid vector builtin subscripting in constant expressions.
 262         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
 263         (const_where_expression, where_expression, where)
 264         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
 265         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
 266         internal APIs).
 267         * include/experimental/bits/simd_builtin.h (__vector_permute)
 268         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
 269         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
 270         (_MaskImplBuiltin::_S_store): Add constexpr.
 271         (_CommonImplBuiltin::_S_store_bool_array)
 272         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
 273         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
 274         constant_evaluated case.
 275         * include/experimental/bits/simd_fixed_size.h
 276         (_S_masked_load): Reword comment.
 277         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
 278         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
 279         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
 280         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
 281         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
 282         constexpr.
 283         (_SimdTuple::operator[], _M_set): Add constexpr and add
 284         constant_evaluated case.
 285         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
 286         * include/experimental/bits/simd_scalar.h: Add constexpr.
 287         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
 288         constexpr and add constant_evaluated case.
 289         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
 290         (_S_less_equal): Value-initialize to satisfy constexpr
 291         evaluation.
 292         (_MaskImplX86::_S_load): Add constant_evaluated case.
 293         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
 294         case. Value-initialize local variables.
 295         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
 296         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
 297         case.
 298         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
 299         test.
 300
 301 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
 302
 303         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
 304         __infn into #ifdef'ed block.
 305         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
 306         constants only when used.
 307         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
 308         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
 309         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
 310         Likewise.
 311         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 312         Move totest and expect1 into #ifdef'ed block.
 313
 314 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
 315
 316         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
 317         * doc/html/manual/strings.html: Regenerate.
 318
 319 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 320
 321         PR libstdc++/109883
 322         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
 323
 324 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 325
 326         PR libstdc++/109883
 327         * include/c_global/cmath (atan2, fmod, pow): Move
 328         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
 329         __gnu_cxx::__bfloat16_t overloads.
 330         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
 331         Likewise.
 332         (fma): Move __gnu_cxx::__promote_3 using template after
 333         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
 334
 335 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 336
 337         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
 338         checks for float_round_style and float_denorm_style.
 339
 340 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 341
 342         * include/bits/c++config: Add system_header pragma.
 343
 344 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 345
 346         * include/std/expected (expected::and_then, expected::or_else)
 347         (expected::transform, expected::transform_error): Fix exception
 348         specifications as per LWG 3877.
 349         (expected<void, E>::and_then, expected<void, E>::transform):
 350         Likewise.
 351         * testsuite/20_util/expected/lwg3877.cc: New test.
 352
 353 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
 354
 355         * include/std/type_traits: Use __bool_constant instead of
 356         integral_constant.
 357
 358 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 359
 360         * configure: Regenerate.
 361
 362 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 363
 364         PR libstdc++/109741
 365         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
 366         * config.h.in: Regenerate.
 367         * configure: Regenerate.
 368         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
 369         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
 370         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
 371         instead of hardcoded 64.
 372
 373 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 374
 375         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
 376         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
 377         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
 378         * config.h.in: Regenerate.
 379         * configure: Regenerate.
 380         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
 381         instead of _GLIBCXX_USE_C99_FENV_TR1.
 382         * include/c_global/cfenv: Likewise.
 383         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
 384         of _GLIBCXX_USE_C99_CTYPE_TR1.
 385
 386 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 387
 388         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
 389         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
 390         <inttypes.h> features in C++11 mode and define
 391         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
 392         * config.h.in: Regenerate.
 393         * configure: Regenerate.
 394         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
 395         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
 396         of _GLIBCXX_USE_C99_STDINT_TR1.
 397         * include/c_compatibility/inttypes.h: Check
 398         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
 399         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
 400         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 401         * include/c_compatibility/stdatomic.h: Check
 402         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
 403         * include/c_compatibility/stdint.h: Likewise.
 404         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
 405         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
 406         _GLIBCXX_USE_C99_INTTYPES_TR1 and
 407         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 408         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
 409         instead of _GLIBCXX_USE_C99_STDINT_TR1.
 410         * include/std/atomic: Likewise.
 411         * src/c++11/cow-stdexcept.cc: Likewise.
 412         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 413         Likewise.
 414         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 415         Likewise.
 416
 417 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 418
 419         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
 420         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
 421         * config.h.in: Regenerate.
 422         * configure: Regenerate.
 423         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
 424         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
 425         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
 426
 427 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 428
 429         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
 430         assertion to ensure expected exception is throw.
 431
 432 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 433
 434         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
 435         printer for chrono::zoned_time for cx11 ABI and tzdb effective
 436         target.
 437
 438 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 439
 440         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
 441         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
 442         * configure: Regenerate.
 443
 444 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 445
 446         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
 447         to check for nan, nanf, and nanl.
 448         * configure: Regenerate.
 449
 450 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 451
 452         * include/bits/char_traits.h (char_traits<char16_t>): Do not
 453         depend on _GLIBCXX_USE_C99_STDINT_TR1.
 454         (char_traits<char32_t>): Likewise.
 455         * include/experimental/source_location: Likewise.
 456
 457 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 458
 459         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
 460         (atomic_int_least16_t, atomic_uint_least16_t)
 461         (atomic_int_least32_t, atomic_uint_least32_t)
 462         (atomic_int_least64_t, atomic_uint_least64_t)
 463         (atomic_int_fast16_t, atomic_uint_fast16_t)
 464         (atomic_int_fast32_t, atomic_uint_fast32_t)
 465         (atomic_int_fast64_t, atomic_uint_fast64_t)
 466         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
 467         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
 468
 469 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 470
 471         * include/bits/algorithmfwd.h (shuffle): Do not depend on
 472         _GLIBCXX_USE_C99_STDINT_TR1.
 473         * include/bits/ranges_algo.h (shuffle): Likewise.
 474         * include/bits/stl_algo.h (shuffle): Likewise.
 475         * include/ext/random: Likewise.
 476         * include/ext/throw_allocator.h (random_condition): Likewise.
 477         * include/std/random: Likewise.
 478         * src/c++11/cow-string-inst.cc: Likewise.
 479         * src/c++11/random.cc: Likewise.
 480
 481 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 482
 483         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
 484         _GLIBCXX_USE_C99_STDINT_TR1.
 485
 486 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 487
 488         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
 489         on _GLIBCXX_USE_C99_STDINT_TR1.
 490
 491 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 492
 493         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
 494         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
 495         * testsuite/experimental/string_view/typedefs.cc: Likewise.
 496
 497 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 498
 499         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
 500         (auto_locale, auto_ferounding): New class types.
 501         (from_chars_impl): Use auto_locale and auto_ferounding.
 502
 503 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 504
 505         PR libstdc++/109772
 506         * include/std/chrono (hh_mm_ss::__fits): Remove variable
 507         template.
 508         (hh_mm_ss::__subseconds): Remove __fits from constraints.
 509         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
 510         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
 511         hh_mm_ss<duration<int, std::pico>>.
 512
 513 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 514
 515         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
 516         * include/bits/basic_ios.h: Add static assertion checking
 517         traits_type::value_type.
 518         * include/bits/basic_string.h: Likewise. Do not rebind
 519         allocator, and add static assertion checking its value_type.
 520         (basic_string::_Alloc_traits_impl): Remove class template.
 521         (basic_string::_S_allocate): New static member function.
 522         (basic_string::assign): Use _S_allocate.
 523         * include/bits/basic_string.tcc (basic_string::_M_create)
 524         (basic_string::reserve, basic_string::_M_replace): Likewise.
 525         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
 526         Disable for C++20 and later.
 527         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
 528         Likweise.
 529
 530 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 531
 532         PR libstdc++/109758
 533         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
 534         and negative zero correctly.
 535         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
 536
 537 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
 538
 539         * include/bits/hashtable_policy.h
 540         (_NodeBuilder<>::_S_build): Use __node_ptr.
 541         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
 542         (_AllocNode<>): Likewise.
 543         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
 544         to call std::is_permutation in the non-unique key implementation.
 545         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
 546         _M_begin() once.
 547         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
 548         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
 549         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
 550         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
 551         const_iterator.
 552         (_Hashtable<>::find): Likewise.
 553         (_Hashtable<>::_M_emplace): Likewise.
 554         (_Hashtable<>::_M_insert_unique): Likewise.
 555
 556 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
 557
 558         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
 559         Print floating-point durations correctly.
 560         (StdChronoTimePointPrinter): Support printing only the value,
 561         not the type name. Uncomment handling for known clocks.
 562         (StdChronoZonedTimePrinter): Remove type names from output.
 563         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
 564         (StdChronoTimeZonePrinter): Add equals sign to output.
 565         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
 566
 567 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
 568
 569         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 570         on aarch64-vxworks.
 571         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 572         aarch64-vxworks.
 573
 574 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
 575
 576         * doc/xml/manual/abi.xml (abi.versioning.history): Document
 577         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
 578         * doc/html/manual/abi.html: Regenerate.
 579
 580 2023-05-04  Florian Weimer  <fweimer@redhat.com>
 581
 582         * doc/xml/manual/abi.xml (abi.versioning.history): Add
 583         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
 584         libgcc_s.
 585
 586 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
 587
 588         * src/c++17/floating_from_chars.cc
 589         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
 590         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
 591         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
 592         _ZSt8to_charsPcS_u9__ieee128.
 593         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
 594         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
 595         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
 596         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
 597         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
 598
 599 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
 600
 601         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
 602         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
 603         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
 604         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
 605         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
 606         versions.
 607         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
 608         file.
 609
 610 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
 611             Jonathan Wakely  <jwakely@redhat.com>
 612
 613         PR libstdc++/109703
 614         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
 615         Initialize _M_string_length.
 616
 617 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
 618
 619         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
 620         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
 621         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
 622         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
 623         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
 624         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 625         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
 626         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 627
 628 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
 629
 630         PR libstdc++/109694
 631         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
 632         -Wattribute-alias.
 633
 634 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 635
 636         * include/bits/random.h (gamma_distribution): Add to the right
 637         doxygen group.
 638         (discrete_distribution, piecewise_constant_distribution)
 639         (piecewise_linear_distribution): Create a new doxygen group and
 640         fix the incomplete doxygen comments.
 641         * include/bits/uniform_int_dist.h (uniform_int_distribution):
 642         Add to doxygen group.
 643
 644 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 645
 646         * include/bits/uses_allocator.h: Add missing @file comment.
 647         * include/bits/regex.tcc: Remove stray doxygen comments.
 648         * include/experimental/memory_resource: Likewise.
 649         * include/std/bit: Tweak doxygen @cond comments.
 650         * include/std/expected: Likewise.
 651         * include/std/numbers: Likewise.
 652
 653 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 654
 655         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
 656         from header paths.
 657
 658 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 659
 660         * include/bits/move.h: Simplify opening/closing namespace std.
 661
 662 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
 663
 664         PR libstdc++/108969
 665         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
 666         _ZSt21ios_base_library_initv.
 667         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
 668         symver and make it the latestp.
 669         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
 670         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
 671         * include/std/iostream: If init_priority attribute is supported
 672         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
 673         symbol into the object.
 674         * configure: Regenerated.
 675
 676 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 677
 678         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
 679         * include/std/format: Likewise.
 680
 681 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 682
 683         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
 684         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
 685
 686 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 687
 688         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
 689         HTML docs.
 690         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
 691         from doxygen docs.
 692         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
 693         Likewise.
 694         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
 695         Likewise.
 696         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
 697         Likewise.
 698         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
 699         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
 700         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
 701         (_DEFINE_BINARY_OPERATOR): Likewise.
 702
 703 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 704
 705         * include/bits/memory_resource.h: Improve doxygen comments.
 706         * include/std/memory_resource: Likewise.
 707
 708 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 709
 710         PR libstdc++/40380
 711         * include/bits/basic_string.h: Improve doxygen comments.
 712         * include/bits/cow_string.h: Likewise.
 713         * include/bits/forward_list.h: Likewise.
 714         * include/bits/fs_dir.h: Likewise.
 715         * include/bits/fs_path.h: Likewise.
 716         * include/bits/quoted_string.h: Likewise.
 717         * include/bits/stl_bvector.h: Likewise.
 718         * include/bits/stl_map.h: Likewise.
 719         * include/bits/stl_multimap.h: Likewise.
 720         * include/bits/stl_multiset.h: Likewise.
 721         * include/bits/stl_set.h: Likewise.
 722         * include/bits/stl_vector.h: Likewise.
 723         * include/bits/unordered_map.h: Likewise.
 724         * include/bits/unordered_set.h: Likewise.
 725         * include/std/filesystem: Likewise.
 726         * include/std/iomanip: Likewise.
 727
 728 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 729
 730         PR libstdc++/105081
 731         * src/c++11/random.cc (__throw_syserr): New function.
 732         (random_device::_M_init, random_device::_M_init_pretr1): Use new
 733         function for bad tokens.
 734         (random_device::_M_getval): Use new function for read errors.
 735         * testsuite/util/testsuite_random.h (random_device_available):
 736         Change catch handler to use std::system_error.
 737
 738 2023-04-24  Patrick Palka  <ppalka@redhat.com>
 739
 740         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
 741         Fix propagation of sign bit.
 742         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
 743         non-standard 'signed typedef-name'.  Add some compile-time tests
 744         for right-shifting a negative __max_diff_type value by more than
 745         one.
 746
 747 2023-04-19  Patrick Palka  <ppalka@redhat.com>
 748             Jonathan Wakely  <jwakely@redhat.com>
 749
 750         PR c++/100157
 751         * include/bits/utility.h (_Nth_type): Conditionally define in
 752         terms of __type_pack_element if available.
 753         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
 754         additional errors from the new built-in.
 755
 756 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
 757
 758         Revert:
 759         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 760
 761         PR libstdc++/108969
 762         * src/Makefile.am: Move globals_io.cc to here.
 763         * src/Makefile.in: Regenerate.
 764         * src/c++98/Makefile.am: Remove globals_io.cc from here.
 765         * src/c++98/Makefile.in: Regenerate.
 766         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
 767         symbol name and then export with GLIBCXX_3.4.31 symver.
 768         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
 769         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
 770         Regenerate.
 771         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
 772         Regenerate.
 773         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
 774         Regenerate.
 775         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
 776         Regenerate.
 777         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
 778         Regenerate.
 779         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
 780         Regenerate.
 781         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
 782         Regenerate.
 783         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
 784         Regenerate.
 785         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
 786
 787 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
 788
 789         Revert:
 790         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 791
 792         PR libstdc++/108969
 793         * config/abi/pre/gnu.ver: Fix preprocessor condition.
 794
 795 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 796
 797         * doc/xml/manual/extensions.xml: Fix example to declare and
 798         qualify std::free, and use NULL instead of 0.
 799         * doc/html/manual/ext_demangling.html: Regenerate.
 800         * libsupc++/cxxabi.h: Adjust doxygen comments.
 801
 802 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 803
 804         PR libstdc++/108969
 805         * config/abi/pre/gnu.ver: Fix preprocessor condition.
 806
 807 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 808
 809         PR libstdc++/108969
 810         * src/Makefile.am: Move globals_io.cc to here.
 811         * src/Makefile.in: Regenerate.
 812         * src/c++98/Makefile.am: Remove globals_io.cc from here.
 813         * src/c++98/Makefile.in: Regenerate.
 814         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
 815         symbol name and then export with GLIBCXX_3.4.31 symver.
 816         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
 817         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
 818         Regenerate.
 819         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
 820         Regenerate.
 821         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
 822         Regenerate.
 823         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
 824         Regenerate.
 825         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
 826         Regenerate.
 827         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
 828         Regenerate.
 829         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
 830         Regenerate.
 831         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
 832         Regenerate.
 833         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
 834
 835 2023-04-18  Patrick Palka  <ppalka@redhat.com>
 836
 837         PR libstdc++/108827
 838         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
 839         for C++23.
 840         * include/std/ranges (range_adaptor_closure): Define for C++23.
 841         * include/std/version (__cpp_lib_ranges): Bump value for
 842         C++23.
 843         * testsuite/std/ranges/version_c++23.cc: Bump expected value
 844         of __cpp_lib_ranges.
 845         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
 846
 847 2023-04-18  Patrick Palka  <ppalka@redhat.com>
 848
 849         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
 850         Define for C++23.
 851         (__cpp_lib_ranges_iota): Likewise.
 852         (__cpp_lib_ranges_find_last): Likewise.
 853         (__cpp_lib_fold): Rename to ...
 854         (__cpp_lib_ranges_fold): ... this.
 855         * include/std/version: As above.
 856         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
 857         renaming __cpp_lib_fold.
 858         * testsuite/std/ranges/version_c++23.cc: Verify values
 859         of the above feature-test macros.
 860
 861 2023-04-18  Patrick Palka  <ppalka@redhat.com>
 862
 863         PR libstdc++/109525
 864         * include/std/ranges (views::_AsConst::operator()): Add
 865         missing const to constant_range test.
 866         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
 867         Improve formatting.  Adjust expected type of v2.
 868         (test03): New test.
 869
 870 2023-04-14  Patrick Palka  <ppalka@redhat.com>
 871
 872         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
 873         (const_sentinel_t): Likewise.
 874         (range_const_reference_t): Likewise.
 875         (constant_range): Likewise.
 876         (__cust_access::__possibly_const_range): Likewise, replacing ...
 877         (__cust_access::__as_const): ... this.
 878         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
 879         (__cust_access::_CEnd::operator()): Likewise.
 880         (__cust_access::_CRBegin::operator()): Likewise.
 881         (__cust_access::_CREnd::operator()): Likewise.
 882         (__cust_access::_CData::operator()): Likewise.
 883         * include/bits/ranges_util.h (ranges::__detail::__different_from):
 884         Make it an alias of std::__detail::__different_from.
 885         (view_interface::cbegin): Define for C++23.
 886         (view_interface::cend): Likewise.
 887         * include/bits/stl_iterator.h (__detail::__different_from): Define.
 888         (iter_const_reference_t): Define for C++23.
 889         (__detail::__constant_iterator): Likewise.
 890         (__detail::__is_const_iterator): Likewise.
 891         (__detail::__not_a_const_iterator): Likewise.
 892         (__detail::__iter_const_rvalue_reference_t): Likewise.
 893         (__detail::__basic_const_iter_cat):: Likewise.
 894         (const_iterator): Likewise.
 895         (__detail::__const_sentinel): Likewise.
 896         (const_sentinel): Likewise.
 897         (basic_const_iterator): Likewise.
 898         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
 899         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
 900         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
 901         Likewise.
 902         (make_const_iterator): Define for C++23.
 903         (make_const_sentinel): Likewise.
 904         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
 905         (as_const_view): Likewise.
 906         (enable_borrowed_range<as_const_view>): Likewise.
 907         (views::__detail::__is_ref_view): Likewise.
 908         (views::__detail::__can_is_const_view): Likewise.
 909         (views::_AsConst, views::as_const): Likewise.
 910         * include/std/span (span::const_iterator): Likewise.
 911         (span::const_reverse_iterator): Likewise.
 912         (span::cbegin): Likewise.
 913         (span::cend): Likewise.
 914         (span::crbegin): Likewise.
 915         (span::crend): Likewise.
 916         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
 917         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
 918         behave independently of C++20 vs C++23.
 919         * testsuite/std/ranges/version_c++23.cc: Verify value of
 920         __cpp_lib_ranges_as_const macro.
 921         * testsuite/24_iterators/const_iterator/1.cc: New test.
 922         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
 923
 924 2023-04-14  Patrick Palka  <ppalka@redhat.com>
 925
 926         * include/bits/ranges_base.h (__cust_access::__as_const)
 927         (__cust_access::_CBegin, __cust::cbegin)
 928         (__cust_access::_CEnd, __cust::cend)
 929         (__cust_access::_CRBegin, __cust::crbegin)
 930         (__cust_access::_CREnd, __cust::crend)
 931         (__cust_access::_CData, __cust::cdata): Move down definitions to
 932         shortly after the definition of input_range.
 933
 934 2023-04-14  Patrick Palka  <ppalka@redhat.com>
 935
 936         * include/bits/ranges_algo.h: Include <optional> for C++23.
 937         (__cpp_lib_fold): Define for C++23.
 938         (in_value_result): Likewise.
 939         (__detail::__flipped): Likewise.
 940         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
 941         (__detail::__indirectly_binary_left_foldable): Likewise.
 942         (___detail:__indirectly_binary_right_foldable): Likewise.
 943         (fold_left_with_iter_result): Likewise.
 944         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
 945         (__fold_left_fn, fold_left): Likewise.
 946         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
 947         Likewise.
 948         (__fold_left_first_fn, fold_left_first): Likewise.
 949         (__fold_right_fn, fold_right): Likewise.
 950         (__fold_right_last_fn, fold_right_last): Likewise.
 951         * include/std/version (__cpp_lib_fold): Likewise.
 952         * testsuite/25_algorithms/fold_left/1.cc: New test.
 953         * testsuite/25_algorithms/fold_right/1.cc: New test.
 954
 955 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
 956
 957         * include/std/format (formatter): Add comment to deleted default
 958         constructor of primary template.
 959         (_Checking_scanner): Add static_assert.
 960
 961 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
 962
 963         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
 964         * doc/html/*: Regenerate.
 965
 966 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
 967
 968         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
 969         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
 970         namespace to avoid clashing with libc struct.
 971         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
 972         Likewise.
 973         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
 974         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
 975         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
 976         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
 977         * testsuite/experimental/synchronized_value.cc: Require gthreads
 978         and add missing option for pthreads targets.
 979
 980 2023-04-12  Patrick Palka  <ppalka@redhat.com>
 981
 982         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
 983         for C++23.
 984         (__detail::__range_with_movable_reference): Likewise.
 985         (enumerate_view): Likewise.
 986         (enumerate_view::_Iterator): Likewise.
 987         (enumerate_view::_Sentinel): Likewise.
 988         (views::__detail::__can_enumerate_view): Likewise.
 989         (views::_Enumerate, views::enumerate): Likewise.
 990         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
 991         * testsuite/std/ranges/version_c++23.cc: Verify value of
 992         __cpp_lib_ranges_enumerate.
 993         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
 994
 995 2023-04-12  Patrick Palka  <ppalka@redhat.com>
 996
 997         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
 998         Propagate _M_trailing_empty in the const-converting constructor
 999         as per LWG 3904.
1000         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
1001         assertion.
1002         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
1003
1004 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1005
1006         * src/c++17/floating_from_chars.cc: Include <algorithm>,
1007         <iterator>, <limits> and <cstdint>.
1008
1009 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1010
1011         PR libstdc++/108291
1012         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
1013         parameter types of the lambda wrapper passed to adjacent_find.
1014         (chunk_by_view::_M_find_prev): Likewise.
1015         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
1016         New tests.
1017
1018 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1019
1020         PR libstdc++/109482
1021         * include/experimental/internet (basic_endpoint::basic_endpoint()):
1022         Ensure that the required union members are active. Only define
1023         as constexpr for C++20 and later.
1024         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
1025         Likewise.
1026         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
1027         check constexpr default constructor for C++20 and later.
1028         * testsuite/experimental/net/internet/endpoint/extensible.cc:
1029         Likewise.
1030
1031 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1032
1033         * src/c++20/tzdata.zi: Import new file from 2023c release.
1034
1035 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1036
1037         * include/precompiled/stdc++.h (C++17): Don't double-include
1038         <charconv>, once with wrong conditions.
1039         * testsuite/18_support/96817.cc: Require hosted.
1040         * testsuite/18_support/bad_exception/59392.cc: Ditto.
1041         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
1042         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
1043         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1044         Ditto.
1045
1046 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1047
1048         * include/bits/c++config: When __STDC_HOSTED__ is zero,
1049         disable _GLIBCXX_DEBUG and, if it was set, enable
1050         _GLIBCXX_ASSERTIONS.
1051         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
1052         Include <bits/c++config.h> when determining whether debug is
1053         set, in order to inherit the logic from above
1054
1055 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1056
1057         * testsuite/17_intro/versionconflict.cc: New test.
1058         * include/std/version: Allow disabling the system_header pragma
1059         via _GLIBCXX_TESTING_SYSHDR.
1060
1061 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1062
1063         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
1064         Synchronize the definition block with...
1065         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
1066         ... this one here.  Also define the 202202L value, rather than
1067         leaving it up to purely unique_ptr.h, so that the value is
1068         synchronized across all headers.
1069         (__gnu_debug::_Safe_iterator_base): Move into new conditional
1070         block.
1071         * include/std/memory (__cpp_lib_atomic_value_initialization):
1072         Define on freestanding under the same conditions as in
1073         atomic_base.h.
1074         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
1075         Also define on freestanding.
1076         (__cpp_lib_to_chars): Ditto.
1077         (__cpp_lib_gcd): Ditto.
1078         (__cpp_lib_gcd_lcm): Ditto.
1079         (__cpp_lib_raw_memory_algorithms): Ditto.
1080         (__cpp_lib_array_constexpr): Ditto.
1081         (__cpp_lib_nonmember_container_access): Ditto.
1082         (__cpp_lib_clamp): Ditto.
1083         (__cpp_lib_constexpr_char_traits): Ditto.
1084         (__cpp_lib_constexpr_string): Ditto.
1085         (__cpp_lib_sample): Ditto.
1086         (__cpp_lib_lcm): Ditto.
1087         (__cpp_lib_constexpr_iterator): Ditto.
1088         (__cpp_lib_constexpr_char_traits): Ditto.
1089         (__cpp_lib_interpolate): Ditto.
1090         (__cpp_lib_constexpr_utility): Ditto.
1091         (__cpp_lib_shift): Ditto.
1092         (__cpp_lib_ranges): Ditto.
1093         (__cpp_lib_move_iterator_concept): Ditto.
1094         (__cpp_lib_constexpr_numeric): Ditto.
1095         (__cpp_lib_constexpr_functional): Ditto.
1096         (__cpp_lib_constexpr_algorithms): Ditto.
1097         (__cpp_lib_constexpr_tuple): Ditto.
1098         (__cpp_lib_constexpr_memory): Ditto.
1099
1100 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
1101
1102         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
1103         timeout factor on hppa*-*-*.
1104
1105 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
1106
1107         * include/bits/regex.h (sub_match::swap): New function.
1108         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
1109
1110 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
1111
1112         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
1113         example program.
1114         * doc/html/manual/ext_demangling.html: Regenerate.
1115
1116 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1117
1118         PR tree-optimization/107087
1119         * include/bits/cow_string.h (basic_string::size()): Add
1120         optimizer hint that _S_empty_rep()._M_length is always zero.
1121         (basic_string::length()): Call size().
1122
1123 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1124
1125         PR libstdc++/109339
1126         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
1127         Add attribute access with access-mode 'none'.
1128         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
1129
1130 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1131
1132         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
1133         Revert change from member function to data member. Fix for
1134         constant evaluation by detecting which union member is active.
1135         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
1136         flag.
1137
1138 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1139
1140         PR libstdc++/109242
1141         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
1142         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
1143
1144 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1145
1146         * include/experimental/internet (ip::make_address): Implement
1147         missing overload.
1148         (ip::address_v4::broadcast()): Avoid undefined shift.
1149         (ip::basic_endpoint): Fix member functions for constexpr.
1150         (ip::basic_endpoint::_M_is_v6): Replace member function with
1151         data member, adjust member functions using it.
1152         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
1153         content.
1154         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1155         constexpr checks to work in C++14.
1156         * testsuite/experimental/net/internet/address/v4/creation.cc:
1157         Likewise.
1158         * testsuite/experimental/net/internet/endpoint/cons.cc:
1159         Likewise.
1160         * testsuite/experimental/net/internet/network/v4/cons.cc:
1161         Likewise.
1162         * testsuite/experimental/net/internet/network/v4/members.cc:
1163         Likewise.
1164         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
1165
1166 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1167
1168         * include/std/expected (expected::value() &): Use const lvalue
1169         for unex member passed to bad_expected_access constructor, as
1170         per LWG 3843.
1171
1172 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1173
1174         PR libstdc++/109340
1175         * include/std/expected (expected::transform): Use
1176         std::remove_cv_t instead of std::remove_cvref_t.
1177         (expected::transform_error): Likewise.
1178         (expected<cv void, E>::transform): Likewise.
1179         (expected<cv void, E>::transform_error): Likewise.
1180         * include/std/optional (transform): Use std::remove_cv_t.
1181         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
1182
1183 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1184
1185         * include/std/optional (optional): Adjust static assertion to
1186         reject arrays and functions as well as references.
1187         * testsuite/20_util/optional/requirements_neg.cc: New test.
1188
1189 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1190
1191         PR libstdc++/103387
1192         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
1193         std::use_facet instead of cached _M_num_get facet.
1194         (istream::operator>>(short&)): Likewise.
1195         (istream::operator>>(int&)): Likewise.
1196         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
1197         std::use_facet instead of cached _M_num_put facet.
1198
1199 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1200
1201         * include/bits/char_traits.h (char_traits::copy): Return without
1202         using memcpy if n==0.
1203         (char_traits::assign): Likewise for memset.
1204
1205 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1206
1207         PR libstdc++/109299
1208         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
1209         hint for compiler that local strings fit in the local buffer.
1210
1211 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1212
1213         PR libstdc++/109288
1214         * include/std/chrono (__detail::__get_leap_second_info): Update
1215         expiry date of hardcoded leapseconds list.
1216         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
1217         Likewise.
1218         * src/c++20/tzdata.zi: Import new file from 2023a release.
1219         * testsuite/std/time/time_zone/get_info_local.cc: Only check
1220         transitions for Egypt up to 2014.
1221
1222 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1223
1224         * include/experimental/bits/simd.h (is_simd_flag_type): New.
1225         (_IsSimdFlagType): New.
1226         (copy_from, copy_to, load ctors): Constrain _Flags using
1227         _IsSimdFlagType.
1228
1229 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1230
1231         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
1232         _Base::_S_divides if the optimized _S_divides function is hidden
1233         via the preprocessor.
1234
1235 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
1236
1237         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
1238         warning if size_t is not unsigned long.
1239
1240 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1241
1242         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
1243         Add overload, as per LWG 3893.
1244         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1245         Check assignment from nullptr.
1246
1247 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1248
1249         * include/std/format (formatter<const charT[N], charT>): Do not
1250         define partial speclialization, as per LWG 3833.
1251         * testsuite/std/format/formatter/requirements.cc: Check it.
1252
1253 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1254
1255         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
1256         as per LWG 3792.
1257         * testsuite/20_util/exchange/constexpr.cc: Check for it.
1258
1259 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1260
1261         * include/std/version (__cpp_lib_format): Define.
1262         * testsuite/std/format/functions/format.cc: Check it.
1263
1264 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1265
1266         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
1267         Pass rvalues to the callback, as now allowed by LWG 3645.
1268         Enforce preconditions on the return value.
1269         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
1270         Adjust.
1271
1272 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1273
1274         * include/std/format: Add a comment noting that the resolution
1275         of LWG 3720 has been applied..
1276
1277 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1278
1279         * include/bits/regex.h (match_results): Add allocator-extended
1280         copy and move constructors, as per LWG 2195.
1281         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
1282
1283 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1284
1285         * include/bits/stream_iterator.h (istream_iterator): Add
1286         constexpr to copy constructor, as per LWG 3600.
1287         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
1288         Check copy construction.
1289
1290 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1291
1292         * include/experimental/bits/simd_x86.h
1293         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
1294         with __RECIPROCAL_MATH__.
1295
1296 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1297
1298         * include/experimental/bits/simd_detail.h: Don't define
1299         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
1300         * include/experimental/bits/simd_x86.h (_S_divides): Remove
1301         check for __clang__.
1302
1303 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1304
1305         * include/experimental/bits/simd_detail.h: Don't declare the
1306         simd API as constexpr with Clang.
1307         * include/experimental/bits/simd_x86.h (__movm): New.
1308         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
1309         and ?:.
1310         (_SimdImplX86::_S_masked_unary): Clang does not implement the
1311         same builtins. Implement the function using __movm, ?:, and -
1312         operators on vector_size types instead.
1313
1314 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1315
1316         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
1317         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
1318
1319 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1320
1321         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
1322         formatting.
1323
1324 2023-03-20  Marek Polacek  <polacek@redhat.com>
1325
1326         PR c++/109159
1327         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
1328         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
1329         * testsuite/23_containers/span/explicit.cc: Likewise.
1330
1331 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1332
1333         PR libstdc++/109182
1334         * include/std/expected (expected<void>::expected(in_place_t)):
1335         Remove template-head.
1336
1337 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
1338
1339         PR libstdc++/109165
1340         * testsuite/18_support/coroutines/hash.cc: Use const object
1341         in second call.
1342
1343 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
1344
1345         PR libstdc++/109165
1346         * include/std/coroutine (hash<>::operator()): Add const.
1347         * testsuite/18_support/coroutines/hash.cc: New test.
1348
1349 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1350
1351         PR libstdc++/109111
1352         * include/std/ranges (repeat_view): Remove redundant parentheses
1353         in requires-clause.
1354         (repeat_view::_Iterator): Correct the requires-clause.
1355
1356 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1357
1358         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
1359         Define.
1360         (__cpp_lib_move_iterator_concept): Define for C++20.
1361         (move_iterator::iterator_concept): Strengthen as per P2520R0.
1362         * include/std/version (__cpp_lib_move_iterator_concept): Define
1363         for C++20.
1364         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
1365
1366 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1367
1368         * include/bits/ranges_util.h (view_interface::empty): Add
1369         preferred overloads that use ranges::size when the range is
1370         sized as per LWG 3715.
1371         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
1372
1373 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1374
1375         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
1376         Only define for C++17 and later.
1377
1378 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1379
1380         * src/Makefile.am: Add comment about linker script fragments.
1381         * src/Makefile.in: Regenerate.
1382
1383 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1384
1385         PR libstdc++/62196
1386         * include/bits/mask_array.h (mask_array): Add assertions to
1387         assignment operators.
1388         * include/std/valarray (valarray::operator[](valarray<bool>)):
1389         Add assertions.
1390         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
1391         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
1392         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
1393         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
1394         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
1395         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
1396         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
1397         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
1398         * testsuite/26_numerics/valarray/mask.cc: New test.
1399
1400 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
1401
1402         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1403         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1404
1405 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1406
1407         * doc/Makefile.am: Add comment referring to documentation.
1408         * doc/Makefile.in: Regenerate.
1409
1410 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1411
1412         * doc/html/*: Regenerate.
1413
1414 2023-03-13  Jonny Grant  <jg@jguk.org>
1415
1416         * doc/xml/faq.xml: Update copyright year.
1417
1418 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1419
1420         * include/bits/allocator.h: Fix typo in comment.
1421
1422 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
1423
1424         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
1425         if it isn't mangled as DF16b but u6__bf16.
1426
1427 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
1428
1429         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
1430         to https.
1431         * doc/html/manual/documentation_hacking.html: Regenerate.
1432
1433 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
1434
1435         PR libstdc++/109064
1436         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
1437         Remove self-recursion in __init__. Add missing _supports.
1438         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
1439         and unique().
1440
1441 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1442
1443         * include/std/ranges
1444         (cartesian_product_view::_Iterator::_Iterator): Remove
1445         constraint on default constructor as per LWG 3849.
1446         (cartesian_product_view::_Iterator::_M_prev): Adjust position
1447         of _Nm > 0 test as per LWG 3820.
1448         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
1449         checking only on sized cartesian products.
1450         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
1451
1452 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1453
1454         PR libstdc++/109024
1455         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
1456         LWG 3796.
1457         (repeat_view::_M_pred): Likewise.
1458         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
1459         * testsuite/std/ranges/repeat/1.cc (test05): New test.
1460
1461 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1462
1463         PR libstdc++/108362
1464         * include/std/ranges (__detail::__can_single_view): New concept.
1465         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
1466         end of the function declarator.
1467         (__detail::__can_iota_view): New concept.
1468         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
1469         end of the function declarator.
1470         (__detail::__can_istream_view): New concept.
1471         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
1472         end of the function declarator.
1473         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
1474         * testsuite/std/ranges/istream_view.cc (test08): New test.
1475         * testsuite/std/ranges/single_view.cc (test07): New test.
1476
1477 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1478
1479         PR libstdc++/107572
1480         * include/std/ranges (cartesian_product_view::end): When
1481         building the tuple of iterators, avoid calling ranges::begin on
1482         the first range if __empty_tail is false.
1483         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
1484
1485 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
1486
1487         PR libstdc++/108882
1488         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
1489         patterns.
1490
1491 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
1492
1493         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1494         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1495         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1496         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1497         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1498
1499 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1500
1501         PR libstdc++/108882
1502         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
1503         not match symbols in namespace std::__gnu_cxx11_ieee128.
1504         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
1505         std::__gnu_cxx11_ieee128::money_{get,put}.
1506
1507 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1508
1509         * libsupc++/eh_personality.cc: Fix spelling in comment.
1510
1511 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1512
1513         * testsuite/30_threads/async/async.cc (test04): Initialize
1514         steady_start, renamed from steady_begin, next to slow_start.
1515         Increase tolerance for final wait.
1516
1517 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1518
1519         * testsuite/libstdc++-prettyprinters/80276.cc: Add
1520         std::string to debug info.
1521         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
1522
1523 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1524
1525         PR libstdc++/104852
1526         PR libstdc++/95989
1527         PR libstdc++/52590
1528         * include/bits/std_thread.h (thread::_M_thread_deps): New
1529         static implicitly-inline member function.
1530         (std::thread template ctor): Pass it to _M_start_thread.
1531         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
1532         parameter, force it live on entry.
1533
1534 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1535
1536         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
1537         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
1538         Likewise.
1539         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
1540         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
1541         Likewise.
1542
1543 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
1544
1545         * include/bits/cow_string.h: Fix typo in comment.
1546
1547 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
1548
1549         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
1550         current time zone cannot be determined.
1551         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
1552         HAVE_TZDB macro and test all members unconditionally.
1553
1554 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1555
1556         PR libstdc++/108952
1557         * include/bits/uses_allocator_args.h
1558         (uses_allocator_construction_args): Implement LWG 3527.
1559         * testsuite/20_util/pair/astuple/get-2.cc: New test.
1560         * testsuite/20_util/scoped_allocator/108952.cc: New test.
1561         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
1562
1563 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1564
1565         PR libstdc++/108846
1566         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
1567         Add __assign_one static member function.
1568         (__copy_move<true, false, RA>): Likewise.
1569         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
1570         value.
1571         (__copy_move_backward<IsMove, true, RA>): Likewise.
1572         * testsuite/25_algorithms/copy/108846.cc: New test.
1573         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
1574         * testsuite/25_algorithms/copy_n/108846.cc: New test.
1575         * testsuite/25_algorithms/move/108846.cc: New test.
1576         * testsuite/25_algorithms/move_backward/108846.cc: New test.
1577
1578 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1579
1580         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
1581         attributes.
1582
1583 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
1584
1585         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
1586         caveat to comment.
1587         * include/bits/basic_string.h (resize_and_overwrite): Add
1588         doxygen comment.
1589
1590 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1591
1592         * include/experimental/bits/simd.h: Line breaks and indenting
1593         fixed to follow the libstdc++ standard.
1594         * include/experimental/bits/simd_builtin.h: Likewise.
1595         * include/experimental/bits/simd_fixed_size.h: Likewise.
1596         * include/experimental/bits/simd_neon.h: Likewise.
1597         * include/experimental/bits/simd_ppc.h: Likewise.
1598         * include/experimental/bits/simd_scalar.h: Likewise.
1599         * include/experimental/bits/simd_x86.h: Likewise.
1600
1601 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1602
1603         PR libstdc++/108030
1604         * include/experimental/bits/simd_fixed_size.h
1605         (_SimdImplFixedSize::_S_broadcast): Replace inline with
1606         _GLIBCXX_SIMD_INTRINSIC.
1607         (_SimdImplFixedSize::_S_generate): Likewise.
1608         (_SimdImplFixedSize::_S_load): Likewise.
1609         (_SimdImplFixedSize::_S_masked_load): Likewise.
1610         (_SimdImplFixedSize::_S_store): Likewise.
1611         (_SimdImplFixedSize::_S_masked_store): Likewise.
1612         (_SimdImplFixedSize::_S_min): Likewise.
1613         (_SimdImplFixedSize::_S_max): Likewise.
1614         (_SimdImplFixedSize::_S_complement): Likewise.
1615         (_SimdImplFixedSize::_S_unary_minus): Likewise.
1616         (_SimdImplFixedSize::_S_plus): Likewise.
1617         (_SimdImplFixedSize::_S_minus): Likewise.
1618         (_SimdImplFixedSize::_S_multiplies): Likewise.
1619         (_SimdImplFixedSize::_S_divides): Likewise.
1620         (_SimdImplFixedSize::_S_modulus): Likewise.
1621         (_SimdImplFixedSize::_S_bit_and): Likewise.
1622         (_SimdImplFixedSize::_S_bit_or): Likewise.
1623         (_SimdImplFixedSize::_S_bit_xor): Likewise.
1624         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
1625         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
1626         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
1627         explicit about not always-inline, yet).
1628         (_SimdImplFixedSize::_S_isinf): Likewise.
1629         (_SimdImplFixedSize::_S_isfinite): Likewise.
1630         (_SimdImplFixedSize::_S_isnan): Likewise.
1631         (_SimdImplFixedSize::_S_isnormal): Likewise.
1632         (_SimdImplFixedSize::_S_signbit): Likewise.
1633
1634 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1635
1636         PR libstdc++/108856
1637         * include/experimental/bits/simd_builtin.h
1638         (_SimdImplBuiltin::_S_masked_unary): More efficient
1639         implementation of masked inc-/decrement for integers and floats
1640         without AVX2.
1641         * include/experimental/bits/simd_x86.h
1642         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
1643         builtins for masked inc-/decrement.
1644
1645 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1646
1647         * include/experimental/executor (executor): Constrain template
1648         constructors.
1649
1650 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1651
1652         * include/experimental/internet (basic_endpoint): Add missing
1653         constexpr to comparison operators.
1654         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
1655
1656 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1657
1658         * include/experimental/internet (network_v4::netmask()): Avoid
1659         undefined shift.
1660         (network_v4::broadcast()): Optimize and fix for targets with
1661         uint_least32_t wider than 32 bits.
1662         (network_v4::to_string(const Allocator&)): Fix for custom
1663         allocators and optimize using to_chars.
1664         (operator==(const network_v4&, const network_v4&)): Add missing
1665         constexpr.
1666         (operator==(const network_v6&, const network_v6&)): Likewise.
1667         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
1668         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
1669
1670 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1671
1672         * include/experimental/internet (address_4(const bytes_type&)):
1673         Use __builtin_bit_cast if available, otherwise convert to
1674         network byte order.
1675         (address_v4::to_bytes()): Likewise, but convert from network
1676         byte order.
1677         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1678         incorrect tests. Check for constexpr too.
1679         * testsuite/experimental/net/internet/address/v4/creation.cc:
1680         Likewise.
1681         * testsuite/experimental/net/internet/address/v4/members.cc:
1682         Check that bytes_type is a standard-layout type.
1683
1684 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1685
1686         * include/experimental/internet (address_v4::to_string):
1687         Optimize.
1688         * testsuite/experimental/net/internet/address/v4/members.cc:
1689         Check more addresses.
1690
1691 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1692
1693         * include/ext/aligned_buffer.h (__aligned_buffer): Add
1694         diagnostic pragmas.
1695
1696 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1697
1698         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
1699         before dg-do.
1700
1701 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1702
1703         * testsuite/experimental/simd/tests/reductions.cc: Introduce
1704         max_distance as the type-dependent max error.
1705
1706 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1707
1708         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
1709         int. The actual range of these indexes is very small.
1710
1711 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1712
1713         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
1714         (_S_bit_shift_right): Declare constexpr. The implementation was
1715         already expecting constexpr evaluation.
1716
1717 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1718
1719         PR libstdc++/108030
1720         * include/experimental/bits/simd_detail.h
1721         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
1722         __clang__.
1723
1724 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1725
1726         PR libstdc++/108030
1727         * include/experimental/bits/simd.h (__vector_broadcast):
1728         Implement via __vector_broadcast_impl instead of
1729         __call_with_n_evaluations + 2 lambdas.
1730         (__vector_broadcast_impl): New.
1731
1732 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
1733
1734         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
1735         Avoid destruction of the mutex pool.
1736
1737 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
1738
1739         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
1740         on vxworks.
1741         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
1742         Likewise.
1743
1744 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
1745
1746         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
1747         kernel mode.
1748
1749 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
1750
1751         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
1752
1753 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
1754
1755         * include/experimental/bits/simd.h (__extract_part, split):
1756         Use reserved name for template parameter.
1757
1758 2023-02-20  Andreas Schwab  <schwab@suse.de>
1759
1760         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1761
1762 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
1763
1764         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
1765         * doc/html/faq.html: Regenerate.
1766
1767 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1768
1769         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
1770         between scalars requires the __bit_cast helper function instead
1771         of simd_bit_cast.
1772
1773 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1774
1775         * include/experimental/bits/simd_x86.h
1776         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
1777         (_SimdImplX86::_S_less_equal): Do not call
1778         __builtin_is_constant_evaluated in constexpr-if.
1779
1780 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1781
1782         * testsuite/experimental/simd/tests/bits/verify.h
1783         (verify::verify): Use %zx for size_t in format string.
1784
1785 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1786
1787         * testsuite/experimental/simd/generate_makefile.sh: Generate and
1788         pre-compile pch.h, which includes all headers that do not depend
1789         on command-line macros.
1790         * testsuite/experimental/simd/tests/bits/main.h: New file.
1791         (iterate_abis, main): Moved from verify.h.
1792         * testsuite/experimental/simd/tests/bits/verify.h
1793         (iterate_abis, main): Moved to main.h.
1794         * testsuite/experimental/simd/tests/bits/conversions.h: Add
1795         include guard.
1796         (genHalfBits): Simplify.
1797         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
1798         guard.
1799         (make_alternating_mask): Moved from mask_loadstore.
1800         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
1801         include guard.
1802         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
1803         * testsuite/experimental/simd/tests/mask_loadstore.cc
1804         (make_mask, make_alternating_mask): Removed.
1805         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
1806         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
1807         Removed.
1808         * testsuite/experimental/simd/tests/abs.cc: Only include
1809         bits/main.h.
1810         Ditto.
1811         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
1812         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
1813         * testsuite/experimental/simd/tests/casts.cc: Ditto.
1814         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
1815         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
1816         * testsuite/experimental/simd/tests/generator.cc: Ditto.
1817         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
1818         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
1819         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
1820         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
1821         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
1822         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
1823         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
1824         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
1825         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
1826         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
1827         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
1828         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
1829         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
1830         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
1831         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
1832         * testsuite/experimental/simd/tests/simd.cc: Ditto.
1833         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
1834         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
1835         * testsuite/experimental/simd/tests/splits.cc: Ditto.
1836         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
1837         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
1838         * testsuite/experimental/simd/tests/where.cc: Ditto.
1839
1840 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1841
1842         * testsuite/experimental/simd/README.md: Document the timeout
1843         and timeout-factor directives. Minor typo fixed.
1844
1845 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1846
1847         PR libstdc++/108030
1848         * include/experimental/bits/simd_detail.h: Define
1849         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
1850         * include/experimental/bits/simd.h: Annotate lambdas with
1851         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
1852         * include/experimental/bits/simd_builtin.h: Ditto.
1853         * include/experimental/bits/simd_converter.h: Ditto.
1854         * include/experimental/bits/simd_fixed_size.h: Ditto.
1855         * include/experimental/bits/simd_math.h: Ditto.
1856         * include/experimental/bits/simd_neon.h: Ditto.
1857         * include/experimental/bits/simd_x86.h: Ditto.
1858
1859 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1860
1861         * include/experimental/bits/simd.h
1862         (_SimdWrapper::_M_is_constprop_none_of)
1863         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
1864         computed result still satisfies __builtin_constant_p.
1865
1866 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1867
1868         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
1869         ellipsis character.
1870
1871 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1872
1873         * include/Makefile.am: Add new header.
1874         * include/Makefile.in: Regenerate.
1875         * include/experimental/synchronized_value: New file.
1876         * testsuite/experimental/synchronized_value.cc: New test.
1877
1878 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1879
1880         * include/experimental/optional: Fix header name in comment.
1881
1882 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1883
1884         * include/std/format (__format::_Arg_store): New class template.
1885         (basic_format_args): Remove nested type _Store and add deduction
1886         guide from _Arg_store.
1887         (basic_format_arg, make_format_args): Adjust.
1888         * testsuite/std/format/arguments/lwg3810.cc: New test.
1889
1890 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1891
1892         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
1893         constraints to constructors and add deleted overloads for the
1894         dangling cases, as per P2255R2.
1895         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
1896         make dangling cases ill-formed.
1897         * testsuite/20_util/pair/dangling_ref.cc: New test.
1898
1899 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1900
1901         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
1902
1903 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1904
1905         * include/ext/throw_allocator.h: Use reserved names for
1906         parameters.
1907
1908 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1909
1910         * testsuite/17_intro/names_pstl.cc: Add space after effective
1911         target name.
1912
1913 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1914
1915         * include/pstl/algorithm_fwd.h (__pattern_search_n)
1916         (__brick_unique_copy, __brick_adjacent_find)
1917         (__brick_generate_n, __pattern_generate_n): Use reserved names
1918         for parameters.
1919         * include/pstl/algorithm_impl.h (__brick_unique_copy)
1920         (__pattern_reverse, __brick_generate_n): Likewise.
1921         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
1922         (__prefer_parallel_tag): Likewise.
1923         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
1924         * include/pstl/glue_numeric_defs.h (adjacent_difference):
1925         Likewise.
1926         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
1927         Likewise.
1928         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
1929         * include/pstl/unseq_backend_simd.h (_Combiner)
1930         (__simd_min_element, __simd_minmax_element): Likewise.
1931         * testsuite/17_intro/names_pstl.cc: New test.
1932
1933 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
1934
1935         * include/bits/fs_ops.h (create_directory): Use reserved name
1936         for parameter.
1937         * include/bits/ranges_algo.h (__contains_subrange_fn):
1938         Likewise.
1939         * include/bits/regex_automaton.h (_State_base::_M_print):
1940         Likewise.
1941         * include/bits/regex_automaton.tcc(_State_base::_M_print):
1942         Likewise.
1943         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
1944         * include/experimental/bits/fs_ops.h (create_directory):
1945         Likewise.
1946         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
1947         (recursive_timed_mutex:_M_clocklock): Likewise.
1948         * include/std/tuple (basic_common_reference): Likewise.
1949         * libsupc++/cxxabi_init_exception.h
1950         (__cxa_init_primary_exception): Likewise.
1951         * testsuite/17_intro/names.cc: Add checks.
1952
1953 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
1954
1955         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
1956         to www.open-std.org and https.
1957         * doc/html/manual/status.html: Regenerate.
1958
1959 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
1960
1961         PR libstdc++/103934
1962         * include/std/atomic (atomic_flag_wait): Add.
1963         (atomic_flag_wait_explicit): Add.
1964         (atomic_flag_notify): Add.
1965         (atomic_flag_notify_explicit): Add.
1966         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
1967         Add test case to cover missing atomic_flag free functions.
1968
1969 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
1970
1971         PR libstdc++/103934
1972         * include/std/atomic (atomic_flag_test): Add.
1973         (atomic_flag_test_explicit): Add.
1974         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
1975         test case to cover missing atomic_flag free functions.
1976         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
1977         Likewise.
1978
1979 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
1980
1981         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
1982         "The Component Object Model" reference.
1983         * doc/html/manual/policy_data_structures.html: Regenerate.
1984
1985 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
1986
1987         * doc/xml/manual/containers.xml: Tweak a link to N1780
1988         (C++ standard).
1989         * doc/html/manual/associative.html: Regenerate.
1990
1991 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
1992
1993         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
1994         * doc/html/manual/facets.html: Regenerate.
1995
1996 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
1997
1998         * doc/xml/manual/policy_data_structures_biblio.xml: Update
1999         link to "Worst-case efficient priority queues".
2000         * doc/html/manual/policy_data_structures.html: Regenerate.
2001
2002 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2003
2004         * doc/xml/manual/using.xml: Document newly-freestanding
2005         headers and the effect of the -ffreestanding flag.
2006         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
2007         completed.
2008         * doc/xml/manual/configure.xml: Document that hosted installs
2009         respect __STDC_HOSTED__.
2010         * doc/xml/manual/test.xml: Document how to run tests in
2011         freestanding mode.
2012         * doc/html/*: Regenerate.
2013
2014 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2015
2016         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
2017         (__find_last_if_fn): Likewise.
2018
2019 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2020
2021         * include/std/type_traits: Add diagnostic pragmas around
2022         references to deprecated std::aligned_storage and
2023         std::aligned_union traits.
2024         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
2025         Add dg-warning for et c++23.
2026         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
2027         Likewise.
2028         * testsuite/20_util/aligned_storage/value.cc: Likewise.
2029         * testsuite/20_util/aligned_union/1.cc: Likewise.
2030         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
2031         Likewise.
2032
2033 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2034
2035         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
2036         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
2037         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
2038         * include/std/type_traits (aligned_storage, aligned_union)
2039         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
2040         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
2041         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
2042
2043 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2044
2045         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
2046         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
2047         consistent with other 'deprecated' macros.
2048         * include/std/type_traits (is_pod, is_pod_v): Use
2049         _GLIBCXX20_DEPRECATED_SUGGEST instead.
2050
2051 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2052
2053         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
2054         * Makefile.in: Regenerate.
2055         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
2056         There's no history to be compatible with.
2057         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
2058         source files from the build.
2059         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2060         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2061         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2062         * src/Makefile.in: Regenerate.
2063         * src/c++11/Makefile.in: Regenerate.
2064         * src/c++17/Makefile.in: Regenerate.
2065         * src/c++20/Makefile.in: Regenerate.
2066         * src/c++98/Makefile.in: Regenerate.
2067
2068 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2069
2070         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
2071         filesystem, libbacktrace and experimental.
2072         * src/Makefile.in: Regenerate.
2073
2074 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
2075
2076         PR libstdc++/108672
2077         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
2078         instead of int32_t.
2079
2080 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
2081
2082         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
2083         * doc/html/manual/documentation_hacking.html: Regenerate.
2084
2085 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
2086
2087         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
2088         storage to the move-from instance when allocators are equal.
2089         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
2090         New test case.
2091
2092 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
2093
2094         * config/os/gnu-linux/os_defines.h [!__linux__]
2095         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
2096
2097 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2098
2099         * include/bits/ranges_algo.h (__find_last_fn, find_last):
2100         Define.
2101         (__find_last_if_fn, find_last_if): Define.
2102         (__find_last_if_not_fn, find_last_if_not): Define.
2103         * testsuite/25_algorithms/find_last/1.cc: New test.
2104         * testsuite/25_algorithms/find_last_if/1.cc: New test.
2105         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
2106
2107 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2108
2109         * include/bits/ranges_algo.h (out_value_result): Define.
2110         (iota_result): Define.
2111         (__iota_fn, iota): Define.
2112         * testsuite/25_algorithms/iota/1.cc: New test.
2113
2114 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2115
2116         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
2117         (__contains_subrange_fn, contains_subrange): Define.
2118         * testsuite/25_algorithms/contains/1.cc: New test.
2119         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
2120
2121 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2122
2123         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
2124         * doc/html/manual/abi.html: Regenerate.
2125
2126 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2127
2128         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
2129         errc::function_not_supported instead of errc::not_supported.
2130
2131 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2132
2133         * include/std/sstream  (basic_stringbuf::view): Define for old
2134         std::string ABI.
2135         (basic_istringstream::view, basic_0stringstream::view)
2136         (basic_stringstream::view): Likewise.
2137         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
2138         { dg-require-effective-target cxx11_abi }.
2139         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
2140         Likewise.
2141         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
2142         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
2143         Likewise.
2144         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
2145         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
2146         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
2147         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
2148         Likewise.
2149
2150 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2151
2152         PR libstdc++/108636
2153         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
2154         conversion operators for directory iterator comparisons with
2155         std::default_sentinel_t.
2156         * include/bits/fs_path.h (path::path(string_view, _Type))
2157         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
2158         definitions to ...
2159         * src/c++17/fs_path.cc: ... here.
2160         * testsuite/27_io/filesystem/path/108636.cc: New test.
2161
2162 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2163
2164         * include/std/variant (variant::operator=): Implement resolution
2165         of LWG 3585.
2166         * testsuite/20_util/variant/lwg3585.cc: New test.
2167
2168 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2169
2170         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
2171         link to https.
2172         * doc/html/manual/using_exceptions.html: Regenerate.
2173
2174 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2175
2176         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
2177         * doc/html/manual/debug.html: Regenerate.
2178
2179 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2180
2181         * src/c++11/random.cc (random_device::_M_fini): Do not try to
2182         close the file handle if the target doesn't support the
2183         /dev/random and /dev/urandom files.
2184
2185 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2186
2187         * config/os/generic/error_constants.h (errc::value_too_large)
2188         [__AVR__]: Define.
2189         * src/c++11/system_error.cc
2190         (system_category::default_error_condition) [__AVR__]: Only match
2191         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
2192         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
2193         for ENOENT etc. in switch.
2194         (fs::remove_all) [__AVR__]: Likewise.
2195         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
2196         close etc.
2197
2198 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2199
2200         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
2201         embed_zoneinfo=no
2202         * configure: Regenerate.
2203
2204 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
2205
2206         PR testsuite/108632
2207         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
2208         struct at end of S0.
2209
2210 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
2211
2212         * doc/xml/manual/shared_ptr.xml: Move links from both
2213         http://open-std.org and http://www.open-std.org to
2214         https://www.open-std.org.
2215         * doc/html/manual/memory.html: Regenerate.
2216
2217 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2218
2219         * doc/xml/manual/appendix_contributing.xml: Adjust link to
2220         ISO C++ standard at ANSI.
2221         Move link to www.open-std.org to https.
2222         * doc/html/manual/appendix_contributing.html: Regenerate.
2223
2224 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2225
2226         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
2227         links to https.
2228         * doc/html/manual/documentation_hacking.html: Regenerate.
2229
2230 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2231
2232         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
2233         * doc/html/manual/abi.html: Regenerate.
2234
2235 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
2236
2237         PR libstdc++/108568
2238         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
2239         include features.h if present and then check __GLIBC__ and
2240         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
2241         __GLIBC_PREREQ which isn't defined yet.
2242
2243 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2244
2245         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
2246         string literal.
2247
2248 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2249
2250         PR libstdc++/108554
2251         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
2252
2253 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2254
2255         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
2256         rules named "+" for compatibility with older tzdata.zi files.
2257
2258 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2259
2260         PR libstdc++/108554
2261         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
2262         nonnull attribute.
2263         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
2264         attributes.
2265         * testsuite/23_containers/map/modifiers/108554.cc: New test.
2266
2267 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2268
2269         PR libstdc++/108530
2270         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
2271         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
2272
2273 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
2274
2275         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
2276         use https.
2277         * doc/html/manual/bugs.html: Regenerate.
2278
2279 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2280
2281         PR libstdc++/108530
2282         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
2283         /etc/sysconfig/clock.
2284
2285 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2286
2287         PR libstdc++/102301
2288         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
2289         std::make_reverse_iterator.
2290         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
2291         (make_from_tuple): Add static assertion from P2255 to diagnose
2292         dangling references.
2293         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
2294         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
2295
2296 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
2297
2298         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
2299         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
2300         (_Safe_iterator::operator++(int)): Use latter.
2301         (_Safe_iterator::operator--(int)): Likewise.
2302         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
2303         check.
2304         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
2305         New.
2306         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
2307         (_Safe_local_iterator::operator++(int)): Use latter.
2308         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
2309         entry associated to the array entry.
2310
2311 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2312
2313         * include/bits/fs_path.h (u8path): Add deprecated attribute.
2314         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
2315         -Wno-deprecated-declarations for C++20 and later.
2316         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
2317         Likewise.
2318         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
2319         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2320         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
2321
2322 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2323
2324         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
2325         Always call _M_fini and _M_getentropy.
2326
2327 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
2328
2329         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
2330         to www.open-std.org to use https.
2331         (COM: Component Model Object Technologies): Rename from...
2332         (The Component Object Model): ...to.
2333         * doc/html/manual/policy_data_structures.html: Regenerate.
2334
2335 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
2336
2337         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
2338         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
2339         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
2340
2341 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
2342
2343         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
2344         of $host. Fix check for file being present during native build.
2345         * configure: Regenerate.
2346
2347 2023-01-17  Martin Liska  <mliska@suse.cz>
2348
2349         * src/libbacktrace/Makefile.in: Regenerate.
2350
2351 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2352
2353         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
2354
2355 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2356
2357         PR libstdc++/108413
2358         * include/c_compatibility/stdatomic.h: Change copyright line to
2359         be consistent with other headers contributed under DCO terms.
2360         * include/std/expected: Add full stop to copyright line.
2361         * src/c++20/tzdb.cc: Likewise.
2362
2363 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
2364
2365         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
2366         https.
2367         * doc/xml/manual/status_cxx2017.xml: Ditto.
2368         * doc/xml/manual/status_cxx2020.xml: Ditto.
2369         * doc/xml/manual/status_cxx2023.xml: Ditto.
2370         * doc/html/manual/status.html: Regenerate.
2371
2372 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2373
2374         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
2375         and fail gracefully if defining the weak symbol doesn't work.
2376
2377 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
2378
2379         PR libstdc++/108288
2380         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
2381         fix to other iterator category.
2382         (_Safe_iterator<>::operator--(int)): Likewise.
2383         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
2384         Fix deadlock.
2385         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
2386         (invalid_local_iterator_post_increment): New.
2387         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
2388         New test.
2389         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
2390         New test.
2391
2392 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2393
2394         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
2395         dg-options.
2396
2397 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2398
2399         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
2400
2401 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2402
2403         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
2404         windows.h. Add pecoff as FORMAT_FILE.
2405         * config.h.in: Regenerate.
2406         * configure: Regenerate.
2407         * src/libbacktrace/Makefile.am: Regenerate.
2408         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
2409
2410 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2411
2412         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
2413         raw __name if __cxa_demangle could not demangle it.
2414
2415 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2416
2417         PR libstdc++/108409
2418         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
2419         variable.
2420
2421 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2422
2423         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
2424         loading tzdb.
2425         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
2426         effective target.
2427         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2428
2429 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2430
2431         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
2432         --with-libstdcxx-zoneinfo-dir configure option with
2433         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
2434         a directory.
2435         * config.h.in: Regenerate.
2436         * configure: Regenerate.
2437         * doc/xml/manual/configure.xml: Document configure option.
2438         * doc/html/manual/configure.html: Regenerate.
2439         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
2440         * src/c++20/Makefile.in: Regenerate.
2441         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
2442         null pointer if no directory is configured.
2443         (zoneinfo_dir): Replace with ...
2444         (zoneinfo_file): New function.
2445         (tzdata_stream): New istream class.
2446         (remote_version, reload_tzdb): Use tzdata_stream.
2447         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
2448         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
2449         tzdata.zi file in default location.
2450         * src/c++20/tzdata.zi: New file.
2451
2452 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2453
2454         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
2455         * testsuite/std/time/month_day/io.cc: New test.
2456         * testsuite/std/time/month_day_last/io.cc: New test.
2457         * testsuite/std/time/month_weekday/io.cc: New test.
2458         * testsuite/std/time/month_weekday_last/io.cc: New test.
2459         * testsuite/std/time/weekday_indexed/io.cc: New test.
2460         * testsuite/std/time/weekday_last/io.cc: New test.
2461         * testsuite/std/time/year_month/io.cc: New test.
2462         * testsuite/std/time/year_month_day_last/io.cc: New test.
2463         * testsuite/std/time/year_month_weekday/io.cc: New test.
2464         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
2465
2466 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
2467
2468         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
2469         specifications.
2470         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
2471         export.
2472
2473 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2474
2475         * include/bits/std_mutex.h: Include <errno.h>.
2476
2477 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2478
2479         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
2480         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
2481         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
2482         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
2483         std::make_unique with a freestanding-compatible wrapper around
2484         unique_ptr.
2485         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
2486         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
2487         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2488         Ditto.
2489         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
2490         of __cpp_lib_ranges in !HOSTED.
2491
2492 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2493
2494         * include/Makefile.am: Install bits/char_traits.h,
2495         std/string_view
2496         * include/Makefile.in: Regenerate.
2497         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
2498         mbstate-only bits behind appropriate #ifs.
2499         * include/std/string_view: Gate <iostream> functionality behind
2500         HOSTED.
2501         * include/std/version: Enable __cpp_lib_constexpr_string_view
2502         and __cpp_lib_starts_ends_with in !HOSTED.
2503         * include/std/ranges: Re-enable __is_basic_string_view on
2504         freestanding, include <string_view> directly.
2505         * include/precompiled/stdc++.h: Include <string_view> when
2506         !HOSTED too.
2507         * testsuite/20_util/function_objects/searchers.cc: Skip testing
2508         boyer_moore searchers on freestanding
2509         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
2510         <string>-related tests behind __STDC_HOSTED__.
2511         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
2512         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
2513         unused <stdexcept> include.
2514         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
2515         unused <vector> include.
2516         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
2517         Guard <string> related testing behind __STDC_HOSTED__.
2518         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
2519         Guard <stdexcept> related tests behind __STDC_HOSTED__.
2520         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
2521         Ditto.
2522         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
2523         Guard <stdexcept> tests behind __STDC_HOSTED__.
2524         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2525         Enable test on freestanding, guard <stdexcept> bits behind
2526         __STDC_HOSTED__.
2527         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
2528         Guard <stdexcept> bits behind __STDC_HOSTED__.
2529         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
2530         Ditto.
2531
2532 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
2533
2534         PR libstdc++/86419
2535         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
2536         errors in incomplete multibyte sequences.
2537         (utf16_in): Remove surrogates parameter. Fix conditions for
2538         returning partial.
2539         (utf16_out): Fix condition for returning partial.
2540         (ucs2_in): Do not pass surrogates argument to utf16_in.
2541         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
2542         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
2543         tests.
2544         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
2545         test.
2546
2547 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2548
2549         PR libstdc++/108331
2550         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
2551         __GTHREAD_LEGACY_MUTEX_T if defined.
2552
2553 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2554
2555         PR libstdc++/108327
2556         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
2557         Export __try_use_facet specializations for facets in namespace
2558         __gnu_cxx_ldbl128.
2559         * config/os/gnu-linux/ldbl-ieee128-extra.ver
2560         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
2561         __gnu_cxx_ieee128.
2562         * testsuite/util/testsuite_abi.cc: Add to lists of known and
2563         latest versions.
2564
2565 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2566
2567         * include/bits/std_mutex.h: Remove <system_error> include.
2568         * include/std/condition_variable: Add <bits/error_constants.h>
2569         include.
2570         * include/std/mutex: Likewise.
2571         * include/std/shared_mutex: Likewise.
2572
2573 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2574
2575         PR libstdc++/77691
2576         * include/experimental/memory_resource
2577         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
2578         (do_allocate, do_deallocate): Check it.
2579         * testsuite/experimental/memory_resource/new_delete_resource.cc:
2580         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
2581
2582 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2583
2584         * doc/xml/manual/abi.xml: Add latest library versions.
2585         * doc/html/manual/abi.html: Regenerate.
2586
2587 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
2588
2589         PR libstdc++/107189
2590         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
2591         unused _Alloc_node instance.
2592
2593 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2594
2595         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
2596         Define as unsigned long if always lock-free, and unsigned int
2597         otherwise.
2598
2599 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2600
2601         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
2602         __catch macros for exception handling.
2603
2604 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2605
2606         PR libstdc++/108221
2607         * include/bits/stl_algobase.h (__lg): Replace six overloads with
2608         a single function template for all integer types.
2609         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
2610         arithmetic results back to _Distance.
2611
2612 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2613
2614         PR libstdc++/108221
2615         * include/std/span (span::span()): Un-simplify constraint to
2616         work for size_t of lesser rank than int.
2617
2618 2023-01-07  LIU Hao  <lh_mouse@126.com>
2619
2620         PR middle-end/108300
2621         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
2622         <windows.h>.
2623         * src/c++11/thread.cc: Likewise.
2624         * src/c++17/fs_ops.cc: Likewise.
2625         * src/filesystem/ops.cc: Likewise.
2626
2627 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2628
2629         PR libstdc++/108228
2630         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
2631
2632 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2633
2634         PR libstdc++/108235
2635         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
2636         template and partial specialization for synchronizing access to
2637         time_zone::_Impl::infos.
2638         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
2639         rules_counter.
2640
2641 2023-01-06  Patrick Palka  <ppalka@redhat.com>
2642
2643         PR libstdc++/108260
2644         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
2645         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
2646         (__cpp_lib_ranges_chunk): Likewise.
2647         (__cpp_lib_ranges_slide): Likewise.
2648         (__cpp_lib_ranges_chunk_by): Likewise.
2649         (__cpp_lib_ranges_join_with): Likewise.
2650         (__cpp_lib_ranges_repeat): Likewise.
2651         (__cpp_lib_ranges_stride): Likewise.
2652         (__cpp_lib_ranges_cartesian_product): Likewise.
2653         (__cpp_lib_ranges_as_rvalue): Likewise.
2654         * include/std/version: Ditto.
2655         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
2656         feature-test macro.
2657         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
2658         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
2659         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
2660         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
2661         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
2662         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
2663         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
2664         * testsuite/std/ranges/repeat/1.cc: Likewise.
2665         * testsuite/std/ranges/zip/1.cc: Likewise.
2666         * testsuite/std/ranges/version_c++23.cc: New test.
2667
2668 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2669
2670         PR libstdc++/108214
2671         * include/std/bitset (operator>>): Use alloca in the right
2672         scope, not in a constructor.
2673         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
2674
2675 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2676
2677         PR libstdc++/108221
2678         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
2679         Disable visiting floating-point types.
2680
2681 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2682
2683         PR libstdc++/108288
2684         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
2685         (_Safe_iterator::operator--(int)): Do not hold lock around
2686         construction of return value.
2687
2688 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
2689
2690         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
2691         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
2692         lock release.  Revise loop.
2693         (__atomic_add): Likewise.
2694
2695 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2696
2697         PR libstdc++/108212
2698         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
2699         variable.
2700         (StdChronoTimePointPrinter::to_string): Use it.
2701
2702 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2703
2704         PR libstdc++/108290
2705         * include/std/functional (_Bind_front): Add no_unique_address
2706         attribute to data members.
2707         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
2708         size of call wrappers with empty types for targets and bound
2709         arguments.
2710
2711 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2712
2713         PR libstdc++/108211
2714         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
2715         using only last component of the name.
2716
2717 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2718
2719         PR libstdc++/108228
2720         PR libstdc++/108235
2721         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
2722         the latest symbol version.
2723         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
2724         atomic<_Node*> is not always lock free.
2725         (USE_ATOMIC_LIST_HEAD): New macro.
2726         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
2727         definition of weak symbol.
2728         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
2729         (tzdb_list::_Node::_S_list_head): New function for accessing
2730         list head efficiently.
2731         (tzdb_list::_Node::_S_cache_list_head): New function for
2732         updating _S_list_head.
2733
2734 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2735
2736         PR libstdc++/108265
2737         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
2738         duration rep is unsigned.
2739         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
2740
2741 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
2742
2743         PR libstdc++/108228
2744         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
2745         Add __gnu_cxx::zoneinfo_dir_override().
2746
2747 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
2748
2749         PR libstdc++/108258
2750         * include/std/array (__array_traits<T, 0>::operator T*()): Add
2751         constexpr.
2752         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
2753         std::array<T, 0>::data().
2754
2755 \f
2756 Copyright (C) 2023 Free Software Foundation, Inc.
2757
2758 Copying and distribution of this file, with or without modification,
2759 are permitted in any medium without royalty provided the copyright
2760 notice and this notice are preserved.