libstdc++-v3/ChangeLog

   1 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
   2
   3         PR libstdc++/110145
   4         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
   5         (double_to_chars_test_cases,
   6         double_scientific_precision_to_chars_test_cases_2,
   7         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
   8         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
   9         Add unconditional tests with corresponding double constants
  10         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
  11         0x1.7440bbff418b9p-18.
  12
  13 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
  14
  15         * testsuite/util/testsuite_abi.cc (check_version): Re-add
  16         CXXABI_1.3.14.
  17
  18 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
  19
  20         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
  21         Require effective target exceptions_enabled instead of using
  22         dg-skip-if.
  23         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
  24         shrink_to_fit() to be a no-op without exceptions enabled.
  25         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
  26         Likewise.
  27         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
  28         Require effective target exceptions_enabled.
  29         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
  30         Likewise.
  31         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
  32         Likewise.
  33         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
  34         Likewise.
  35         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
  36         Likewise.
  37         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
  38         Likewise.
  39
  40 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
  41
  42         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
  43         affected by rounding.
  44         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
  45         double before comparing for equality.
  46         * testsuite/20_util/from_chars/6.cc: Likewise.
  47         * testsuite/20_util/variant/86874.cc: Use values that aren't
  48         affected by rounding.
  49         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
  50         original value instead of to floating-point-literal.
  51         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
  52         Cast arithmetic result to double before comparing for equality.
  53         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
  54         Likewise.
  55         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
  56         Likewise.
  57         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
  58         the absolute difference is less than 0.01 instead of comparing
  59         to two decimal places.
  60         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
  61         Cast arithmetic result to double before comparing for equality.
  62         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
  63         Likewise.
  64         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
  65         Likewise.
  66         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
  67         Likewise.
  68         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
  69         Likewise.
  70         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
  71         Likewise.
  72         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
  73
  74 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
  75
  76         Revert:
  77         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
  78
  79         * configure.ac: Use AS_IF.
  80         * configure: Regenerate.
  81
  82 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
  83
  84         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
  85         'UNSUPPORTED: [...]: exception handling disabled'.
  86
  87 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
  88
  89         * testsuite/util/testsuite_abi.cc (check_version): Add
  90         CXXABI_1.3.15 symver and make it the latestp. Remove
  91         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
  92
  93 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
  94             Jakub Jelinek  <jakub@redhat.com>
  95
  96         PR libstdc++/104772
  97         * include/std/limits: (numeric_limits<__float128>): Define
  98         for __STRICT_ANSI__ as well.
  99         * testsuite/18_support/numeric_limits/128bit.cc: Remove
 100         check for __STRICT_ANSI__.
 101
 102 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 103
 104         * configure.ac: Use AS_IF.
 105         * configure: Regenerate.
 106
 107 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 108
 109         PR libstdc++/109822
 110         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
 111         to avoid casts to other vector types. Implement store as
 112         succession of power-of-2 sized memcpy to avoid PR90424.
 113
 114 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 115
 116         PR libstdc++/110054
 117         * include/experimental/bits/simd_builtin.h (_S_masked_store):
 118         Call into deduced ABI's SimdImpl after conversion.
 119         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
 120         Don't use _mm_maskmoveu_si128. Use the generic fall-back
 121         implementation. Also fix masked stores without SSE2, which
 122         were not doing anything before.
 123
 124 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 125
 126         * include/experimental/bits/simd.h (__bit_cast): Use
 127         __gnu__::__vector_size__ instead of gnu::vector_size.
 128
 129 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 130
 131         PR libstdc++/110139
 132         * include/std/array (__array_traits<T, 0>::operator T*()): Make
 133         conversion operator explicit.
 134         (array::front): Use size_type as subscript operand.
 135         (array::data): Use static_cast to make conversion explicit.
 136         * testsuite/23_containers/array/element_access/110139.cc: New
 137         test.
 138
 139 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
 140
 141         * include/bits/locale_classes.tcc: Remove check for
 142         codecvt<char8_t, char, mbstate_t> facet.
 143
 144 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 145
 146         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
 147         close-on-exec flag on file descriptors.
 148
 149 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 150
 151         PR libstdc++/108178
 152         * src/filesystem/ops-common.h (do_copy_file): Check for empty
 153         files by trying to read a character.
 154         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
 155         New test.
 156
 157 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 158
 159         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
 160         * config.h.in: Regenerate.
 161         * configure: Regenerate.
 162         * src/filesystem/ops-common.h (copy_file_copy_file_range):
 163         Define new function.
 164         (do_copy_file): Use it.
 165
 166 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 167
 168         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
 169         * config.h.in: Regenerate.
 170         * configure: Regenerate.
 171         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
 172         function for sendfile logic. Loop to support large files. Skip
 173         zero-length files.
 174         (do_copy_file): Use it.
 175
 176 2023-06-04  Jason Merrill  <jason@redhat.com>
 177
 178         PR c++/97720
 179         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
 180         * config/abi/pre/gnu.ver: Add it.
 181
 182 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
 183
 184         * include/parallel/algobase.h: Include <parallel/search.h>.
 185
 186 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 187
 188         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 189         Add const to equality operator.
 190
 191 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 192
 193         * include/std/expected (expected::and_then, expected::or_else)
 194         (expected::transform_error): Use _M_val and _M_unex instead of
 195         calling value() and error(), as per LWG 3938.
 196         (expected::transform): Likewise. Remove incorrect std::move
 197         calls from lvalue overloads.
 198         (expected<void, E>::and_then, expected<void, E>::or_else)
 199         (expected<void, E>::transform): Use _M_unex instead of calling
 200         error().
 201         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
 202         and transform, and for std::expected<void, E>.
 203         * testsuite/20_util/expected/lwg3938.cc: New test.
 204
 205 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 206
 207         PR libstdc++/110060
 208         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
 209         Remove.
 210         (vector::size, vector::capacity): Remove calls to _M_invariant.
 211         * include/bits/vector.tcc (vector::_M_fill_assign): Add
 212         optimization hint to reallocating path.
 213         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
 214         Likewise.
 215         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
 216         to...
 217         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
 218         ...here. Check assign(FwdIter, FwdIter) too.
 219         * testsuite/23_containers/vector/types/1.cc: Revert addition
 220         of -Wno-stringop-overread option.
 221
 222 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 223
 224         * doc/xml/manual/evolution.xml: Document removal of implicit
 225         allocator rebinding extensions in strict mode and for C++20.
 226         * doc/html/*: Regenerate.
 227
 228 2023-06-01  Jason Merrill  <jason@redhat.com>
 229
 230         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
 231         handlers in the cleanup phase.
 232
 233 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
 234
 235         PR libstdc++/110050
 236         * include/experimental/bits/simd.h (__vectorized_sizeof): With
 237         __have_neon_a32 only single-precision float works (in addition
 238         to integers).
 239
 240 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
 241
 242         * include/bits/stl_algo.h
 243         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
 244         * include/bits/stl_algobase.h: ...here.
 245         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
 246         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
 247         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
 248         Move...
 249         * include/parallel/algobase.h: ...here.
 250         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
 251         includes. Include <bits/stl_algobase.h>.
 252
 253 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 254
 255         PR libstdc++/109818
 256         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
 257         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
 258         * config.h.in: Regenerate.
 259         * configure: Regenerate.
 260         * include/c_global/cmath (float_t, double_t): Guard using new
 261         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
 262
 263 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 264
 265         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
 266         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
 267         for C99 rounding functions to here.
 268         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
 269         functions from here.
 270         * config.h.in: Regenerate.
 271         * configure: Regenerate.
 272         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
 273         of _GLIBCXX_USE_C99_MATH_TR1.
 274         * include/bits/random.tcc: Likewise.
 275         * include/c_compatibility/math.h: Likewise.
 276         * include/c_global/cmath: Likewise.
 277         * include/ext/random: Likewise.
 278         * include/ext/random.tcc: Likewise.
 279         * include/std/complex: Likewise.
 280         * testsuite/20_util/from_chars/4.cc: Likewise.
 281         * testsuite/20_util/from_chars/8.cc: Likewise.
 282         * testsuite/26_numerics/complex/proj.cc: Likewise.
 283         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
 284         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
 285         Likewise.
 286         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 287         Likewise.
 288         * testsuite/util/testsuite_random.h: Likewise.
 289
 290 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 291
 292         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
 293         function.
 294         (vector::size(), vector::capacity()): Call _M_invariant().
 295         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
 296         * testsuite/23_containers/vector/types/1.cc: Add suppression for
 297         false positive warning (PR110060).
 298
 299 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 300
 301         PR libstdc++/109921
 302         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
 303         defined before trying to use _Float128.
 304
 305 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 306
 307         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
 308         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
 309         * configure: Regenerate.
 310
 311 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 312
 313         * include/bits/unique_lock.h: Include <bits/error_constants.h>
 314         here for std::errc constants.
 315         * include/std/mutex: Do not include <bits/error_constants.h> and
 316         <exception> here.
 317
 318 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 319
 320         * configure.ac: Replace use of -o operator for test.
 321         * configure: Regenerate.
 322
 323 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 324
 325         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
 326         noexcept to all constructors except the default constructor.
 327         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
 328         (scoped_allocator_adaptor::outer_allocator): Likewise.
 329         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
 330
 331 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 332
 333         PR libstdc++/104772
 334         * include/std/limits (numeric_limits<__float128>): Define.
 335         * testsuite/18_support/numeric_limits/128bit.cc: New test.
 336
 337 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 338
 339         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
 340         msp430 to all 16-bit targets.
 341         * configure: Regenerate.
 342
 343 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 344
 345         PR libstdc++/109921
 346         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
 347         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
 348         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
 349         binary64.
 350         (from_chars(const char*, const char*, double&, chars_format)):
 351         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
 352         (from_chars(const char*, const char*, _Float128&, chars_format))
 353         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
 354         defined, otherwise parse a long double and convert to _Float128.
 355
 356 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 357
 358         PR libstdc++/109922
 359         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
 360         Add deprecated attribute to non-standard overload.
 361         * doc/xml/manual/evolution.xml: Document deprecation.
 362         * doc/html/*: Regenerate.
 363         * testsuite/27_io/manipulators/standard/char/1.cc: Add
 364         dg-warning for expected deprecated warning.
 365         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
 366         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
 367         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
 368
 369 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
 370
 371         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 372         on x86_64-vxworks.
 373         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 374         x86_64-vxworks.
 375
 376 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 377
 378         PR libstdc++/109822
 379         * include/experimental/bits/simd.h (to_native): Use int NTTP
 380         as specified in PTS2.
 381         (to_compatible): Likewise. Add missing tag to call mask
 382         generator ctor.
 383         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
 384         test.
 385
 386 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 387
 388         * testsuite/experimental/simd/tests/integer_operators.cc:
 389         Compute expected value differently to avoid getting turned into
 390         a vector shift.
 391
 392 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 393
 394         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
 395         double <-> (u)long conversion tests conditional on sizeof(long
 396         double) and sizeof(long).
 397
 398 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
 399
 400         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
 401         Negative __y is UB, so prefer signed compare.
 402
 403 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
 404
 405         * testsuite/util/testsuite_allocator.h (PointerBase): Add
 406         relational operators.
 407
 408 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
 409
 410         * testsuite/20_util/to_chars/long_double.cc: Expect execution
 411         fail on x86-vxworks.
 412
 413 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 414
 415         PR libstdc++/109949
 416         * include/experimental/bits/simd.h (__intrinsic_type): If
 417         __ALTIVEC__ is defined, map gnu::vector_size types to their
 418         corresponding __vector T types without losing unsignedness of
 419         integer types. Also prefer long long over long.
 420         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
 421         object to the expected unsigned vector type.
 422
 423 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 424
 425         PR libstdc++/109261
 426         * include/experimental/bits/simd.h (__intrinsic_type):
 427         Specialize __intrinsic_type<double, 8> and
 428         __intrinsic_type<double, 16> in any case, but provide the member
 429         type only with __aarch64__.
 430
 431 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 432
 433         PR libstdc++/109261
 434         * include/experimental/bits/simd_neon.h (_S_reduce): Add
 435         constexpr and make NEON implementation conditional on
 436         not __builtin_is_constant_evaluated.
 437
 438 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
 439
 440         PR libstdc++/109261
 441         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
 442         Avoid vector builtin subscripting in constant expressions.
 443         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
 444         (const_where_expression, where_expression, where)
 445         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
 446         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
 447         internal APIs).
 448         * include/experimental/bits/simd_builtin.h (__vector_permute)
 449         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
 450         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
 451         (_MaskImplBuiltin::_S_store): Add constexpr.
 452         (_CommonImplBuiltin::_S_store_bool_array)
 453         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
 454         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
 455         constant_evaluated case.
 456         * include/experimental/bits/simd_fixed_size.h
 457         (_S_masked_load): Reword comment.
 458         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
 459         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
 460         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
 461         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
 462         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
 463         constexpr.
 464         (_SimdTuple::operator[], _M_set): Add constexpr and add
 465         constant_evaluated case.
 466         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
 467         * include/experimental/bits/simd_scalar.h: Add constexpr.
 468         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
 469         constexpr and add constant_evaluated case.
 470         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
 471         (_S_less_equal): Value-initialize to satisfy constexpr
 472         evaluation.
 473         (_MaskImplX86::_S_load): Add constant_evaluated case.
 474         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
 475         case. Value-initialize local variables.
 476         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
 477         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
 478         case.
 479         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
 480         test.
 481
 482 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
 483
 484         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
 485         __infn into #ifdef'ed block.
 486         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
 487         constants only when used.
 488         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
 489         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
 490         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
 491         Likewise.
 492         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 493         Move totest and expect1 into #ifdef'ed block.
 494
 495 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
 496
 497         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
 498         * doc/html/manual/strings.html: Regenerate.
 499
 500 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 501
 502         PR libstdc++/109883
 503         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
 504
 505 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 506
 507         PR libstdc++/109883
 508         * include/c_global/cmath (atan2, fmod, pow): Move
 509         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
 510         __gnu_cxx::__bfloat16_t overloads.
 511         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
 512         Likewise.
 513         (fma): Move __gnu_cxx::__promote_3 using template after
 514         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
 515
 516 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 517
 518         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
 519         checks for float_round_style and float_denorm_style.
 520
 521 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 522
 523         * include/bits/c++config: Add system_header pragma.
 524
 525 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 526
 527         * include/std/expected (expected::and_then, expected::or_else)
 528         (expected::transform, expected::transform_error): Fix exception
 529         specifications as per LWG 3877.
 530         (expected<void, E>::and_then, expected<void, E>::transform):
 531         Likewise.
 532         * testsuite/20_util/expected/lwg3877.cc: New test.
 533
 534 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
 535
 536         * include/std/type_traits: Use __bool_constant instead of
 537         integral_constant.
 538
 539 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 540
 541         * configure: Regenerate.
 542
 543 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 544
 545         PR libstdc++/109741
 546         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
 547         * config.h.in: Regenerate.
 548         * configure: Regenerate.
 549         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
 550         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
 551         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
 552         instead of hardcoded 64.
 553
 554 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 555
 556         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
 557         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
 558         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
 559         * config.h.in: Regenerate.
 560         * configure: Regenerate.
 561         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
 562         instead of _GLIBCXX_USE_C99_FENV_TR1.
 563         * include/c_global/cfenv: Likewise.
 564         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
 565         of _GLIBCXX_USE_C99_CTYPE_TR1.
 566
 567 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 568
 569         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
 570         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
 571         <inttypes.h> features in C++11 mode and define
 572         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
 573         * config.h.in: Regenerate.
 574         * configure: Regenerate.
 575         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
 576         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
 577         of _GLIBCXX_USE_C99_STDINT_TR1.
 578         * include/c_compatibility/inttypes.h: Check
 579         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
 580         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
 581         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 582         * include/c_compatibility/stdatomic.h: Check
 583         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
 584         * include/c_compatibility/stdint.h: Likewise.
 585         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
 586         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
 587         _GLIBCXX_USE_C99_INTTYPES_TR1 and
 588         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 589         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
 590         instead of _GLIBCXX_USE_C99_STDINT_TR1.
 591         * include/std/atomic: Likewise.
 592         * src/c++11/cow-stdexcept.cc: Likewise.
 593         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 594         Likewise.
 595         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 596         Likewise.
 597
 598 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 599
 600         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
 601         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
 602         * config.h.in: Regenerate.
 603         * configure: Regenerate.
 604         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
 605         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
 606         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
 607
 608 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 609
 610         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
 611         assertion to ensure expected exception is throw.
 612
 613 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 614
 615         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
 616         printer for chrono::zoned_time for cx11 ABI and tzdb effective
 617         target.
 618
 619 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 620
 621         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
 622         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
 623         * configure: Regenerate.
 624
 625 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 626
 627         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
 628         to check for nan, nanf, and nanl.
 629         * configure: Regenerate.
 630
 631 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 632
 633         * include/bits/char_traits.h (char_traits<char16_t>): Do not
 634         depend on _GLIBCXX_USE_C99_STDINT_TR1.
 635         (char_traits<char32_t>): Likewise.
 636         * include/experimental/source_location: Likewise.
 637
 638 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 639
 640         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
 641         (atomic_int_least16_t, atomic_uint_least16_t)
 642         (atomic_int_least32_t, atomic_uint_least32_t)
 643         (atomic_int_least64_t, atomic_uint_least64_t)
 644         (atomic_int_fast16_t, atomic_uint_fast16_t)
 645         (atomic_int_fast32_t, atomic_uint_fast32_t)
 646         (atomic_int_fast64_t, atomic_uint_fast64_t)
 647         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
 648         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
 649
 650 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 651
 652         * include/bits/algorithmfwd.h (shuffle): Do not depend on
 653         _GLIBCXX_USE_C99_STDINT_TR1.
 654         * include/bits/ranges_algo.h (shuffle): Likewise.
 655         * include/bits/stl_algo.h (shuffle): Likewise.
 656         * include/ext/random: Likewise.
 657         * include/ext/throw_allocator.h (random_condition): Likewise.
 658         * include/std/random: Likewise.
 659         * src/c++11/cow-string-inst.cc: Likewise.
 660         * src/c++11/random.cc: Likewise.
 661
 662 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 663
 664         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
 665         _GLIBCXX_USE_C99_STDINT_TR1.
 666
 667 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 668
 669         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
 670         on _GLIBCXX_USE_C99_STDINT_TR1.
 671
 672 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 673
 674         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
 675         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
 676         * testsuite/experimental/string_view/typedefs.cc: Likewise.
 677
 678 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 679
 680         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
 681         (auto_locale, auto_ferounding): New class types.
 682         (from_chars_impl): Use auto_locale and auto_ferounding.
 683
 684 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 685
 686         PR libstdc++/109772
 687         * include/std/chrono (hh_mm_ss::__fits): Remove variable
 688         template.
 689         (hh_mm_ss::__subseconds): Remove __fits from constraints.
 690         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
 691         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
 692         hh_mm_ss<duration<int, std::pico>>.
 693
 694 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 695
 696         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
 697         * include/bits/basic_ios.h: Add static assertion checking
 698         traits_type::value_type.
 699         * include/bits/basic_string.h: Likewise. Do not rebind
 700         allocator, and add static assertion checking its value_type.
 701         (basic_string::_Alloc_traits_impl): Remove class template.
 702         (basic_string::_S_allocate): New static member function.
 703         (basic_string::assign): Use _S_allocate.
 704         * include/bits/basic_string.tcc (basic_string::_M_create)
 705         (basic_string::reserve, basic_string::_M_replace): Likewise.
 706         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
 707         Disable for C++20 and later.
 708         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
 709         Likweise.
 710
 711 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 712
 713         PR libstdc++/109758
 714         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
 715         and negative zero correctly.
 716         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
 717
 718 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
 719
 720         * include/bits/hashtable_policy.h
 721         (_NodeBuilder<>::_S_build): Use __node_ptr.
 722         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
 723         (_AllocNode<>): Likewise.
 724         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
 725         to call std::is_permutation in the non-unique key implementation.
 726         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
 727         _M_begin() once.
 728         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
 729         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
 730         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
 731         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
 732         const_iterator.
 733         (_Hashtable<>::find): Likewise.
 734         (_Hashtable<>::_M_emplace): Likewise.
 735         (_Hashtable<>::_M_insert_unique): Likewise.
 736
 737 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
 738
 739         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
 740         Print floating-point durations correctly.
 741         (StdChronoTimePointPrinter): Support printing only the value,
 742         not the type name. Uncomment handling for known clocks.
 743         (StdChronoZonedTimePrinter): Remove type names from output.
 744         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
 745         (StdChronoTimeZonePrinter): Add equals sign to output.
 746         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
 747
 748 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
 749
 750         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 751         on aarch64-vxworks.
 752         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 753         aarch64-vxworks.
 754
 755 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
 756
 757         * doc/xml/manual/abi.xml (abi.versioning.history): Document
 758         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
 759         * doc/html/manual/abi.html: Regenerate.
 760
 761 2023-05-04  Florian Weimer  <fweimer@redhat.com>
 762
 763         * doc/xml/manual/abi.xml (abi.versioning.history): Add
 764         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
 765         libgcc_s.
 766
 767 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
 768
 769         * src/c++17/floating_from_chars.cc
 770         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
 771         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
 772         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
 773         _ZSt8to_charsPcS_u9__ieee128.
 774         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
 775         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
 776         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
 777         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
 778         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
 779
 780 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
 781
 782         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
 783         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
 784         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
 785         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
 786         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
 787         versions.
 788         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
 789         file.
 790
 791 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
 792             Jonathan Wakely  <jwakely@redhat.com>
 793
 794         PR libstdc++/109703
 795         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
 796         Initialize _M_string_length.
 797
 798 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
 799
 800         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
 801         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
 802         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
 803         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
 804         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
 805         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 806         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
 807         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 808
 809 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
 810
 811         PR libstdc++/109694
 812         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
 813         -Wattribute-alias.
 814
 815 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 816
 817         * include/bits/random.h (gamma_distribution): Add to the right
 818         doxygen group.
 819         (discrete_distribution, piecewise_constant_distribution)
 820         (piecewise_linear_distribution): Create a new doxygen group and
 821         fix the incomplete doxygen comments.
 822         * include/bits/uniform_int_dist.h (uniform_int_distribution):
 823         Add to doxygen group.
 824
 825 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 826
 827         * include/bits/uses_allocator.h: Add missing @file comment.
 828         * include/bits/regex.tcc: Remove stray doxygen comments.
 829         * include/experimental/memory_resource: Likewise.
 830         * include/std/bit: Tweak doxygen @cond comments.
 831         * include/std/expected: Likewise.
 832         * include/std/numbers: Likewise.
 833
 834 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 835
 836         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
 837         from header paths.
 838
 839 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 840
 841         * include/bits/move.h: Simplify opening/closing namespace std.
 842
 843 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
 844
 845         PR libstdc++/108969
 846         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
 847         _ZSt21ios_base_library_initv.
 848         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
 849         symver and make it the latestp.
 850         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
 851         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
 852         * include/std/iostream: If init_priority attribute is supported
 853         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
 854         symbol into the object.
 855         * configure: Regenerated.
 856
 857 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 858
 859         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
 860         * include/std/format: Likewise.
 861
 862 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 863
 864         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
 865         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
 866
 867 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 868
 869         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
 870         HTML docs.
 871         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
 872         from doxygen docs.
 873         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
 874         Likewise.
 875         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
 876         Likewise.
 877         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
 878         Likewise.
 879         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
 880         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
 881         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
 882         (_DEFINE_BINARY_OPERATOR): Likewise.
 883
 884 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 885
 886         * include/bits/memory_resource.h: Improve doxygen comments.
 887         * include/std/memory_resource: Likewise.
 888
 889 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 890
 891         PR libstdc++/40380
 892         * include/bits/basic_string.h: Improve doxygen comments.
 893         * include/bits/cow_string.h: Likewise.
 894         * include/bits/forward_list.h: Likewise.
 895         * include/bits/fs_dir.h: Likewise.
 896         * include/bits/fs_path.h: Likewise.
 897         * include/bits/quoted_string.h: Likewise.
 898         * include/bits/stl_bvector.h: Likewise.
 899         * include/bits/stl_map.h: Likewise.
 900         * include/bits/stl_multimap.h: Likewise.
 901         * include/bits/stl_multiset.h: Likewise.
 902         * include/bits/stl_set.h: Likewise.
 903         * include/bits/stl_vector.h: Likewise.
 904         * include/bits/unordered_map.h: Likewise.
 905         * include/bits/unordered_set.h: Likewise.
 906         * include/std/filesystem: Likewise.
 907         * include/std/iomanip: Likewise.
 908
 909 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 910
 911         PR libstdc++/105081
 912         * src/c++11/random.cc (__throw_syserr): New function.
 913         (random_device::_M_init, random_device::_M_init_pretr1): Use new
 914         function for bad tokens.
 915         (random_device::_M_getval): Use new function for read errors.
 916         * testsuite/util/testsuite_random.h (random_device_available):
 917         Change catch handler to use std::system_error.
 918
 919 2023-04-24  Patrick Palka  <ppalka@redhat.com>
 920
 921         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
 922         Fix propagation of sign bit.
 923         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
 924         non-standard 'signed typedef-name'.  Add some compile-time tests
 925         for right-shifting a negative __max_diff_type value by more than
 926         one.
 927
 928 2023-04-19  Patrick Palka  <ppalka@redhat.com>
 929             Jonathan Wakely  <jwakely@redhat.com>
 930
 931         PR c++/100157
 932         * include/bits/utility.h (_Nth_type): Conditionally define in
 933         terms of __type_pack_element if available.
 934         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
 935         additional errors from the new built-in.
 936
 937 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
 938
 939         Revert:
 940         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 941
 942         PR libstdc++/108969
 943         * src/Makefile.am: Move globals_io.cc to here.
 944         * src/Makefile.in: Regenerate.
 945         * src/c++98/Makefile.am: Remove globals_io.cc from here.
 946         * src/c++98/Makefile.in: Regenerate.
 947         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
 948         symbol name and then export with GLIBCXX_3.4.31 symver.
 949         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
 950         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
 951         Regenerate.
 952         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
 953         Regenerate.
 954         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
 955         Regenerate.
 956         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
 957         Regenerate.
 958         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
 959         Regenerate.
 960         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
 961         Regenerate.
 962         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
 963         Regenerate.
 964         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
 965         Regenerate.
 966         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
 967
 968 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
 969
 970         Revert:
 971         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 972
 973         PR libstdc++/108969
 974         * config/abi/pre/gnu.ver: Fix preprocessor condition.
 975
 976 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 977
 978         * doc/xml/manual/extensions.xml: Fix example to declare and
 979         qualify std::free, and use NULL instead of 0.
 980         * doc/html/manual/ext_demangling.html: Regenerate.
 981         * libsupc++/cxxabi.h: Adjust doxygen comments.
 982
 983 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 984
 985         PR libstdc++/108969
 986         * config/abi/pre/gnu.ver: Fix preprocessor condition.
 987
 988 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
 989
 990         PR libstdc++/108969
 991         * src/Makefile.am: Move globals_io.cc to here.
 992         * src/Makefile.in: Regenerate.
 993         * src/c++98/Makefile.am: Remove globals_io.cc from here.
 994         * src/c++98/Makefile.in: Regenerate.
 995         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
 996         symbol name and then export with GLIBCXX_3.4.31 symver.
 997         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
 998         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
 999         Regenerate.
1000         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1001         Regenerate.
1002         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1003         Regenerate.
1004         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1005         Regenerate.
1006         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1007         Regenerate.
1008         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1009         Regenerate.
1010         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1011         Regenerate.
1012         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1013         Regenerate.
1014         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1015
1016 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1017
1018         PR libstdc++/108827
1019         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
1020         for C++23.
1021         * include/std/ranges (range_adaptor_closure): Define for C++23.
1022         * include/std/version (__cpp_lib_ranges): Bump value for
1023         C++23.
1024         * testsuite/std/ranges/version_c++23.cc: Bump expected value
1025         of __cpp_lib_ranges.
1026         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
1027
1028 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1029
1030         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
1031         Define for C++23.
1032         (__cpp_lib_ranges_iota): Likewise.
1033         (__cpp_lib_ranges_find_last): Likewise.
1034         (__cpp_lib_fold): Rename to ...
1035         (__cpp_lib_ranges_fold): ... this.
1036         * include/std/version: As above.
1037         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
1038         renaming __cpp_lib_fold.
1039         * testsuite/std/ranges/version_c++23.cc: Verify values
1040         of the above feature-test macros.
1041
1042 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1043
1044         PR libstdc++/109525
1045         * include/std/ranges (views::_AsConst::operator()): Add
1046         missing const to constant_range test.
1047         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
1048         Improve formatting.  Adjust expected type of v2.
1049         (test03): New test.
1050
1051 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1052
1053         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
1054         (const_sentinel_t): Likewise.
1055         (range_const_reference_t): Likewise.
1056         (constant_range): Likewise.
1057         (__cust_access::__possibly_const_range): Likewise, replacing ...
1058         (__cust_access::__as_const): ... this.
1059         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
1060         (__cust_access::_CEnd::operator()): Likewise.
1061         (__cust_access::_CRBegin::operator()): Likewise.
1062         (__cust_access::_CREnd::operator()): Likewise.
1063         (__cust_access::_CData::operator()): Likewise.
1064         * include/bits/ranges_util.h (ranges::__detail::__different_from):
1065         Make it an alias of std::__detail::__different_from.
1066         (view_interface::cbegin): Define for C++23.
1067         (view_interface::cend): Likewise.
1068         * include/bits/stl_iterator.h (__detail::__different_from): Define.
1069         (iter_const_reference_t): Define for C++23.
1070         (__detail::__constant_iterator): Likewise.
1071         (__detail::__is_const_iterator): Likewise.
1072         (__detail::__not_a_const_iterator): Likewise.
1073         (__detail::__iter_const_rvalue_reference_t): Likewise.
1074         (__detail::__basic_const_iter_cat):: Likewise.
1075         (const_iterator): Likewise.
1076         (__detail::__const_sentinel): Likewise.
1077         (const_sentinel): Likewise.
1078         (basic_const_iterator): Likewise.
1079         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
1080         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
1081         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
1082         Likewise.
1083         (make_const_iterator): Define for C++23.
1084         (make_const_sentinel): Likewise.
1085         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
1086         (as_const_view): Likewise.
1087         (enable_borrowed_range<as_const_view>): Likewise.
1088         (views::__detail::__is_ref_view): Likewise.
1089         (views::__detail::__can_is_const_view): Likewise.
1090         (views::_AsConst, views::as_const): Likewise.
1091         * include/std/span (span::const_iterator): Likewise.
1092         (span::const_reverse_iterator): Likewise.
1093         (span::cbegin): Likewise.
1094         (span::cend): Likewise.
1095         (span::crbegin): Likewise.
1096         (span::crend): Likewise.
1097         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
1098         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
1099         behave independently of C++20 vs C++23.
1100         * testsuite/std/ranges/version_c++23.cc: Verify value of
1101         __cpp_lib_ranges_as_const macro.
1102         * testsuite/24_iterators/const_iterator/1.cc: New test.
1103         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
1104
1105 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1106
1107         * include/bits/ranges_base.h (__cust_access::__as_const)
1108         (__cust_access::_CBegin, __cust::cbegin)
1109         (__cust_access::_CEnd, __cust::cend)
1110         (__cust_access::_CRBegin, __cust::crbegin)
1111         (__cust_access::_CREnd, __cust::crend)
1112         (__cust_access::_CData, __cust::cdata): Move down definitions to
1113         shortly after the definition of input_range.
1114
1115 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1116
1117         * include/bits/ranges_algo.h: Include <optional> for C++23.
1118         (__cpp_lib_fold): Define for C++23.
1119         (in_value_result): Likewise.
1120         (__detail::__flipped): Likewise.
1121         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
1122         (__detail::__indirectly_binary_left_foldable): Likewise.
1123         (___detail:__indirectly_binary_right_foldable): Likewise.
1124         (fold_left_with_iter_result): Likewise.
1125         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
1126         (__fold_left_fn, fold_left): Likewise.
1127         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
1128         Likewise.
1129         (__fold_left_first_fn, fold_left_first): Likewise.
1130         (__fold_right_fn, fold_right): Likewise.
1131         (__fold_right_last_fn, fold_right_last): Likewise.
1132         * include/std/version (__cpp_lib_fold): Likewise.
1133         * testsuite/25_algorithms/fold_left/1.cc: New test.
1134         * testsuite/25_algorithms/fold_right/1.cc: New test.
1135
1136 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
1137
1138         * include/std/format (formatter): Add comment to deleted default
1139         constructor of primary template.
1140         (_Checking_scanner): Add static_assert.
1141
1142 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1143
1144         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
1145         * doc/html/*: Regenerate.
1146
1147 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1148
1149         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
1150         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
1151         namespace to avoid clashing with libc struct.
1152         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
1153         Likewise.
1154         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
1155         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
1156         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
1157         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
1158         * testsuite/experimental/synchronized_value.cc: Require gthreads
1159         and add missing option for pthreads targets.
1160
1161 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1162
1163         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
1164         for C++23.
1165         (__detail::__range_with_movable_reference): Likewise.
1166         (enumerate_view): Likewise.
1167         (enumerate_view::_Iterator): Likewise.
1168         (enumerate_view::_Sentinel): Likewise.
1169         (views::__detail::__can_enumerate_view): Likewise.
1170         (views::_Enumerate, views::enumerate): Likewise.
1171         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
1172         * testsuite/std/ranges/version_c++23.cc: Verify value of
1173         __cpp_lib_ranges_enumerate.
1174         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
1175
1176 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1177
1178         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
1179         Propagate _M_trailing_empty in the const-converting constructor
1180         as per LWG 3904.
1181         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
1182         assertion.
1183         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
1184
1185 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1186
1187         * src/c++17/floating_from_chars.cc: Include <algorithm>,
1188         <iterator>, <limits> and <cstdint>.
1189
1190 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1191
1192         PR libstdc++/108291
1193         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
1194         parameter types of the lambda wrapper passed to adjacent_find.
1195         (chunk_by_view::_M_find_prev): Likewise.
1196         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
1197         New tests.
1198
1199 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1200
1201         PR libstdc++/109482
1202         * include/experimental/internet (basic_endpoint::basic_endpoint()):
1203         Ensure that the required union members are active. Only define
1204         as constexpr for C++20 and later.
1205         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
1206         Likewise.
1207         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
1208         check constexpr default constructor for C++20 and later.
1209         * testsuite/experimental/net/internet/endpoint/extensible.cc:
1210         Likewise.
1211
1212 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1213
1214         * src/c++20/tzdata.zi: Import new file from 2023c release.
1215
1216 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1217
1218         * include/precompiled/stdc++.h (C++17): Don't double-include
1219         <charconv>, once with wrong conditions.
1220         * testsuite/18_support/96817.cc: Require hosted.
1221         * testsuite/18_support/bad_exception/59392.cc: Ditto.
1222         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
1223         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
1224         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1225         Ditto.
1226
1227 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1228
1229         * include/bits/c++config: When __STDC_HOSTED__ is zero,
1230         disable _GLIBCXX_DEBUG and, if it was set, enable
1231         _GLIBCXX_ASSERTIONS.
1232         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
1233         Include <bits/c++config.h> when determining whether debug is
1234         set, in order to inherit the logic from above
1235
1236 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1237
1238         * testsuite/17_intro/versionconflict.cc: New test.
1239         * include/std/version: Allow disabling the system_header pragma
1240         via _GLIBCXX_TESTING_SYSHDR.
1241
1242 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1243
1244         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
1245         Synchronize the definition block with...
1246         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
1247         ... this one here.  Also define the 202202L value, rather than
1248         leaving it up to purely unique_ptr.h, so that the value is
1249         synchronized across all headers.
1250         (__gnu_debug::_Safe_iterator_base): Move into new conditional
1251         block.
1252         * include/std/memory (__cpp_lib_atomic_value_initialization):
1253         Define on freestanding under the same conditions as in
1254         atomic_base.h.
1255         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
1256         Also define on freestanding.
1257         (__cpp_lib_to_chars): Ditto.
1258         (__cpp_lib_gcd): Ditto.
1259         (__cpp_lib_gcd_lcm): Ditto.
1260         (__cpp_lib_raw_memory_algorithms): Ditto.
1261         (__cpp_lib_array_constexpr): Ditto.
1262         (__cpp_lib_nonmember_container_access): Ditto.
1263         (__cpp_lib_clamp): Ditto.
1264         (__cpp_lib_constexpr_char_traits): Ditto.
1265         (__cpp_lib_constexpr_string): Ditto.
1266         (__cpp_lib_sample): Ditto.
1267         (__cpp_lib_lcm): Ditto.
1268         (__cpp_lib_constexpr_iterator): Ditto.
1269         (__cpp_lib_constexpr_char_traits): Ditto.
1270         (__cpp_lib_interpolate): Ditto.
1271         (__cpp_lib_constexpr_utility): Ditto.
1272         (__cpp_lib_shift): Ditto.
1273         (__cpp_lib_ranges): Ditto.
1274         (__cpp_lib_move_iterator_concept): Ditto.
1275         (__cpp_lib_constexpr_numeric): Ditto.
1276         (__cpp_lib_constexpr_functional): Ditto.
1277         (__cpp_lib_constexpr_algorithms): Ditto.
1278         (__cpp_lib_constexpr_tuple): Ditto.
1279         (__cpp_lib_constexpr_memory): Ditto.
1280
1281 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
1282
1283         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
1284         timeout factor on hppa*-*-*.
1285
1286 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
1287
1288         * include/bits/regex.h (sub_match::swap): New function.
1289         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
1290
1291 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
1292
1293         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
1294         example program.
1295         * doc/html/manual/ext_demangling.html: Regenerate.
1296
1297 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1298
1299         PR tree-optimization/107087
1300         * include/bits/cow_string.h (basic_string::size()): Add
1301         optimizer hint that _S_empty_rep()._M_length is always zero.
1302         (basic_string::length()): Call size().
1303
1304 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1305
1306         PR libstdc++/109339
1307         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
1308         Add attribute access with access-mode 'none'.
1309         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
1310
1311 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1312
1313         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
1314         Revert change from member function to data member. Fix for
1315         constant evaluation by detecting which union member is active.
1316         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
1317         flag.
1318
1319 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1320
1321         PR libstdc++/109242
1322         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
1323         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
1324
1325 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1326
1327         * include/experimental/internet (ip::make_address): Implement
1328         missing overload.
1329         (ip::address_v4::broadcast()): Avoid undefined shift.
1330         (ip::basic_endpoint): Fix member functions for constexpr.
1331         (ip::basic_endpoint::_M_is_v6): Replace member function with
1332         data member, adjust member functions using it.
1333         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
1334         content.
1335         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1336         constexpr checks to work in C++14.
1337         * testsuite/experimental/net/internet/address/v4/creation.cc:
1338         Likewise.
1339         * testsuite/experimental/net/internet/endpoint/cons.cc:
1340         Likewise.
1341         * testsuite/experimental/net/internet/network/v4/cons.cc:
1342         Likewise.
1343         * testsuite/experimental/net/internet/network/v4/members.cc:
1344         Likewise.
1345         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
1346
1347 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1348
1349         * include/std/expected (expected::value() &): Use const lvalue
1350         for unex member passed to bad_expected_access constructor, as
1351         per LWG 3843.
1352
1353 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1354
1355         PR libstdc++/109340
1356         * include/std/expected (expected::transform): Use
1357         std::remove_cv_t instead of std::remove_cvref_t.
1358         (expected::transform_error): Likewise.
1359         (expected<cv void, E>::transform): Likewise.
1360         (expected<cv void, E>::transform_error): Likewise.
1361         * include/std/optional (transform): Use std::remove_cv_t.
1362         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
1363
1364 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1365
1366         * include/std/optional (optional): Adjust static assertion to
1367         reject arrays and functions as well as references.
1368         * testsuite/20_util/optional/requirements_neg.cc: New test.
1369
1370 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1371
1372         PR libstdc++/103387
1373         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
1374         std::use_facet instead of cached _M_num_get facet.
1375         (istream::operator>>(short&)): Likewise.
1376         (istream::operator>>(int&)): Likewise.
1377         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
1378         std::use_facet instead of cached _M_num_put facet.
1379
1380 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1381
1382         * include/bits/char_traits.h (char_traits::copy): Return without
1383         using memcpy if n==0.
1384         (char_traits::assign): Likewise for memset.
1385
1386 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1387
1388         PR libstdc++/109299
1389         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
1390         hint for compiler that local strings fit in the local buffer.
1391
1392 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1393
1394         PR libstdc++/109288
1395         * include/std/chrono (__detail::__get_leap_second_info): Update
1396         expiry date of hardcoded leapseconds list.
1397         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
1398         Likewise.
1399         * src/c++20/tzdata.zi: Import new file from 2023a release.
1400         * testsuite/std/time/time_zone/get_info_local.cc: Only check
1401         transitions for Egypt up to 2014.
1402
1403 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1404
1405         * include/experimental/bits/simd.h (is_simd_flag_type): New.
1406         (_IsSimdFlagType): New.
1407         (copy_from, copy_to, load ctors): Constrain _Flags using
1408         _IsSimdFlagType.
1409
1410 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1411
1412         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
1413         _Base::_S_divides if the optimized _S_divides function is hidden
1414         via the preprocessor.
1415
1416 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
1417
1418         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
1419         warning if size_t is not unsigned long.
1420
1421 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1422
1423         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
1424         Add overload, as per LWG 3893.
1425         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1426         Check assignment from nullptr.
1427
1428 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1429
1430         * include/std/format (formatter<const charT[N], charT>): Do not
1431         define partial speclialization, as per LWG 3833.
1432         * testsuite/std/format/formatter/requirements.cc: Check it.
1433
1434 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1435
1436         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
1437         as per LWG 3792.
1438         * testsuite/20_util/exchange/constexpr.cc: Check for it.
1439
1440 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1441
1442         * include/std/version (__cpp_lib_format): Define.
1443         * testsuite/std/format/functions/format.cc: Check it.
1444
1445 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1446
1447         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
1448         Pass rvalues to the callback, as now allowed by LWG 3645.
1449         Enforce preconditions on the return value.
1450         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
1451         Adjust.
1452
1453 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1454
1455         * include/std/format: Add a comment noting that the resolution
1456         of LWG 3720 has been applied..
1457
1458 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1459
1460         * include/bits/regex.h (match_results): Add allocator-extended
1461         copy and move constructors, as per LWG 2195.
1462         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
1463
1464 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1465
1466         * include/bits/stream_iterator.h (istream_iterator): Add
1467         constexpr to copy constructor, as per LWG 3600.
1468         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
1469         Check copy construction.
1470
1471 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1472
1473         * include/experimental/bits/simd_x86.h
1474         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
1475         with __RECIPROCAL_MATH__.
1476
1477 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1478
1479         * include/experimental/bits/simd_detail.h: Don't define
1480         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
1481         * include/experimental/bits/simd_x86.h (_S_divides): Remove
1482         check for __clang__.
1483
1484 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1485
1486         * include/experimental/bits/simd_detail.h: Don't declare the
1487         simd API as constexpr with Clang.
1488         * include/experimental/bits/simd_x86.h (__movm): New.
1489         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
1490         and ?:.
1491         (_SimdImplX86::_S_masked_unary): Clang does not implement the
1492         same builtins. Implement the function using __movm, ?:, and -
1493         operators on vector_size types instead.
1494
1495 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1496
1497         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
1498         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
1499
1500 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1501
1502         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
1503         formatting.
1504
1505 2023-03-20  Marek Polacek  <polacek@redhat.com>
1506
1507         PR c++/109159
1508         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
1509         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
1510         * testsuite/23_containers/span/explicit.cc: Likewise.
1511
1512 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1513
1514         PR libstdc++/109182
1515         * include/std/expected (expected<void>::expected(in_place_t)):
1516         Remove template-head.
1517
1518 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
1519
1520         PR libstdc++/109165
1521         * testsuite/18_support/coroutines/hash.cc: Use const object
1522         in second call.
1523
1524 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
1525
1526         PR libstdc++/109165
1527         * include/std/coroutine (hash<>::operator()): Add const.
1528         * testsuite/18_support/coroutines/hash.cc: New test.
1529
1530 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1531
1532         PR libstdc++/109111
1533         * include/std/ranges (repeat_view): Remove redundant parentheses
1534         in requires-clause.
1535         (repeat_view::_Iterator): Correct the requires-clause.
1536
1537 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1538
1539         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
1540         Define.
1541         (__cpp_lib_move_iterator_concept): Define for C++20.
1542         (move_iterator::iterator_concept): Strengthen as per P2520R0.
1543         * include/std/version (__cpp_lib_move_iterator_concept): Define
1544         for C++20.
1545         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
1546
1547 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1548
1549         * include/bits/ranges_util.h (view_interface::empty): Add
1550         preferred overloads that use ranges::size when the range is
1551         sized as per LWG 3715.
1552         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
1553
1554 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1555
1556         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
1557         Only define for C++17 and later.
1558
1559 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1560
1561         * src/Makefile.am: Add comment about linker script fragments.
1562         * src/Makefile.in: Regenerate.
1563
1564 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1565
1566         PR libstdc++/62196
1567         * include/bits/mask_array.h (mask_array): Add assertions to
1568         assignment operators.
1569         * include/std/valarray (valarray::operator[](valarray<bool>)):
1570         Add assertions.
1571         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
1572         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
1573         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
1574         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
1575         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
1576         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
1577         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
1578         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
1579         * testsuite/26_numerics/valarray/mask.cc: New test.
1580
1581 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
1582
1583         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1584         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1585
1586 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1587
1588         * doc/Makefile.am: Add comment referring to documentation.
1589         * doc/Makefile.in: Regenerate.
1590
1591 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1592
1593         * doc/html/*: Regenerate.
1594
1595 2023-03-13  Jonny Grant  <jg@jguk.org>
1596
1597         * doc/xml/faq.xml: Update copyright year.
1598
1599 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1600
1601         * include/bits/allocator.h: Fix typo in comment.
1602
1603 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
1604
1605         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
1606         if it isn't mangled as DF16b but u6__bf16.
1607
1608 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
1609
1610         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
1611         to https.
1612         * doc/html/manual/documentation_hacking.html: Regenerate.
1613
1614 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
1615
1616         PR libstdc++/109064
1617         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
1618         Remove self-recursion in __init__. Add missing _supports.
1619         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
1620         and unique().
1621
1622 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1623
1624         * include/std/ranges
1625         (cartesian_product_view::_Iterator::_Iterator): Remove
1626         constraint on default constructor as per LWG 3849.
1627         (cartesian_product_view::_Iterator::_M_prev): Adjust position
1628         of _Nm > 0 test as per LWG 3820.
1629         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
1630         checking only on sized cartesian products.
1631         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
1632
1633 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1634
1635         PR libstdc++/109024
1636         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
1637         LWG 3796.
1638         (repeat_view::_M_pred): Likewise.
1639         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
1640         * testsuite/std/ranges/repeat/1.cc (test05): New test.
1641
1642 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1643
1644         PR libstdc++/108362
1645         * include/std/ranges (__detail::__can_single_view): New concept.
1646         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
1647         end of the function declarator.
1648         (__detail::__can_iota_view): New concept.
1649         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
1650         end of the function declarator.
1651         (__detail::__can_istream_view): New concept.
1652         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
1653         end of the function declarator.
1654         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
1655         * testsuite/std/ranges/istream_view.cc (test08): New test.
1656         * testsuite/std/ranges/single_view.cc (test07): New test.
1657
1658 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1659
1660         PR libstdc++/107572
1661         * include/std/ranges (cartesian_product_view::end): When
1662         building the tuple of iterators, avoid calling ranges::begin on
1663         the first range if __empty_tail is false.
1664         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
1665
1666 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
1667
1668         PR libstdc++/108882
1669         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
1670         patterns.
1671
1672 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
1673
1674         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1675         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1676         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1677         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1678         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1679
1680 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1681
1682         PR libstdc++/108882
1683         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
1684         not match symbols in namespace std::__gnu_cxx11_ieee128.
1685         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
1686         std::__gnu_cxx11_ieee128::money_{get,put}.
1687
1688 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1689
1690         * libsupc++/eh_personality.cc: Fix spelling in comment.
1691
1692 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1693
1694         * testsuite/30_threads/async/async.cc (test04): Initialize
1695         steady_start, renamed from steady_begin, next to slow_start.
1696         Increase tolerance for final wait.
1697
1698 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1699
1700         * testsuite/libstdc++-prettyprinters/80276.cc: Add
1701         std::string to debug info.
1702         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
1703
1704 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1705
1706         PR libstdc++/104852
1707         PR libstdc++/95989
1708         PR libstdc++/52590
1709         * include/bits/std_thread.h (thread::_M_thread_deps): New
1710         static implicitly-inline member function.
1711         (std::thread template ctor): Pass it to _M_start_thread.
1712         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
1713         parameter, force it live on entry.
1714
1715 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1716
1717         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
1718         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
1719         Likewise.
1720         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
1721         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
1722         Likewise.
1723
1724 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
1725
1726         * include/bits/cow_string.h: Fix typo in comment.
1727
1728 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
1729
1730         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
1731         current time zone cannot be determined.
1732         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
1733         HAVE_TZDB macro and test all members unconditionally.
1734
1735 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1736
1737         PR libstdc++/108952
1738         * include/bits/uses_allocator_args.h
1739         (uses_allocator_construction_args): Implement LWG 3527.
1740         * testsuite/20_util/pair/astuple/get-2.cc: New test.
1741         * testsuite/20_util/scoped_allocator/108952.cc: New test.
1742         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
1743
1744 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1745
1746         PR libstdc++/108846
1747         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
1748         Add __assign_one static member function.
1749         (__copy_move<true, false, RA>): Likewise.
1750         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
1751         value.
1752         (__copy_move_backward<IsMove, true, RA>): Likewise.
1753         * testsuite/25_algorithms/copy/108846.cc: New test.
1754         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
1755         * testsuite/25_algorithms/copy_n/108846.cc: New test.
1756         * testsuite/25_algorithms/move/108846.cc: New test.
1757         * testsuite/25_algorithms/move_backward/108846.cc: New test.
1758
1759 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1760
1761         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
1762         attributes.
1763
1764 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
1765
1766         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
1767         caveat to comment.
1768         * include/bits/basic_string.h (resize_and_overwrite): Add
1769         doxygen comment.
1770
1771 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1772
1773         * include/experimental/bits/simd.h: Line breaks and indenting
1774         fixed to follow the libstdc++ standard.
1775         * include/experimental/bits/simd_builtin.h: Likewise.
1776         * include/experimental/bits/simd_fixed_size.h: Likewise.
1777         * include/experimental/bits/simd_neon.h: Likewise.
1778         * include/experimental/bits/simd_ppc.h: Likewise.
1779         * include/experimental/bits/simd_scalar.h: Likewise.
1780         * include/experimental/bits/simd_x86.h: Likewise.
1781
1782 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1783
1784         PR libstdc++/108030
1785         * include/experimental/bits/simd_fixed_size.h
1786         (_SimdImplFixedSize::_S_broadcast): Replace inline with
1787         _GLIBCXX_SIMD_INTRINSIC.
1788         (_SimdImplFixedSize::_S_generate): Likewise.
1789         (_SimdImplFixedSize::_S_load): Likewise.
1790         (_SimdImplFixedSize::_S_masked_load): Likewise.
1791         (_SimdImplFixedSize::_S_store): Likewise.
1792         (_SimdImplFixedSize::_S_masked_store): Likewise.
1793         (_SimdImplFixedSize::_S_min): Likewise.
1794         (_SimdImplFixedSize::_S_max): Likewise.
1795         (_SimdImplFixedSize::_S_complement): Likewise.
1796         (_SimdImplFixedSize::_S_unary_minus): Likewise.
1797         (_SimdImplFixedSize::_S_plus): Likewise.
1798         (_SimdImplFixedSize::_S_minus): Likewise.
1799         (_SimdImplFixedSize::_S_multiplies): Likewise.
1800         (_SimdImplFixedSize::_S_divides): Likewise.
1801         (_SimdImplFixedSize::_S_modulus): Likewise.
1802         (_SimdImplFixedSize::_S_bit_and): Likewise.
1803         (_SimdImplFixedSize::_S_bit_or): Likewise.
1804         (_SimdImplFixedSize::_S_bit_xor): Likewise.
1805         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
1806         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
1807         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
1808         explicit about not always-inline, yet).
1809         (_SimdImplFixedSize::_S_isinf): Likewise.
1810         (_SimdImplFixedSize::_S_isfinite): Likewise.
1811         (_SimdImplFixedSize::_S_isnan): Likewise.
1812         (_SimdImplFixedSize::_S_isnormal): Likewise.
1813         (_SimdImplFixedSize::_S_signbit): Likewise.
1814
1815 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1816
1817         PR libstdc++/108856
1818         * include/experimental/bits/simd_builtin.h
1819         (_SimdImplBuiltin::_S_masked_unary): More efficient
1820         implementation of masked inc-/decrement for integers and floats
1821         without AVX2.
1822         * include/experimental/bits/simd_x86.h
1823         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
1824         builtins for masked inc-/decrement.
1825
1826 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1827
1828         * include/experimental/executor (executor): Constrain template
1829         constructors.
1830
1831 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1832
1833         * include/experimental/internet (basic_endpoint): Add missing
1834         constexpr to comparison operators.
1835         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
1836
1837 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1838
1839         * include/experimental/internet (network_v4::netmask()): Avoid
1840         undefined shift.
1841         (network_v4::broadcast()): Optimize and fix for targets with
1842         uint_least32_t wider than 32 bits.
1843         (network_v4::to_string(const Allocator&)): Fix for custom
1844         allocators and optimize using to_chars.
1845         (operator==(const network_v4&, const network_v4&)): Add missing
1846         constexpr.
1847         (operator==(const network_v6&, const network_v6&)): Likewise.
1848         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
1849         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
1850
1851 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1852
1853         * include/experimental/internet (address_4(const bytes_type&)):
1854         Use __builtin_bit_cast if available, otherwise convert to
1855         network byte order.
1856         (address_v4::to_bytes()): Likewise, but convert from network
1857         byte order.
1858         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1859         incorrect tests. Check for constexpr too.
1860         * testsuite/experimental/net/internet/address/v4/creation.cc:
1861         Likewise.
1862         * testsuite/experimental/net/internet/address/v4/members.cc:
1863         Check that bytes_type is a standard-layout type.
1864
1865 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1866
1867         * include/experimental/internet (address_v4::to_string):
1868         Optimize.
1869         * testsuite/experimental/net/internet/address/v4/members.cc:
1870         Check more addresses.
1871
1872 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1873
1874         * include/ext/aligned_buffer.h (__aligned_buffer): Add
1875         diagnostic pragmas.
1876
1877 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1878
1879         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
1880         before dg-do.
1881
1882 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1883
1884         * testsuite/experimental/simd/tests/reductions.cc: Introduce
1885         max_distance as the type-dependent max error.
1886
1887 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1888
1889         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
1890         int. The actual range of these indexes is very small.
1891
1892 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1893
1894         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
1895         (_S_bit_shift_right): Declare constexpr. The implementation was
1896         already expecting constexpr evaluation.
1897
1898 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1899
1900         PR libstdc++/108030
1901         * include/experimental/bits/simd_detail.h
1902         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
1903         __clang__.
1904
1905 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1906
1907         PR libstdc++/108030
1908         * include/experimental/bits/simd.h (__vector_broadcast):
1909         Implement via __vector_broadcast_impl instead of
1910         __call_with_n_evaluations + 2 lambdas.
1911         (__vector_broadcast_impl): New.
1912
1913 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
1914
1915         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
1916         Avoid destruction of the mutex pool.
1917
1918 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
1919
1920         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
1921         on vxworks.
1922         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
1923         Likewise.
1924
1925 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
1926
1927         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
1928         kernel mode.
1929
1930 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
1931
1932         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
1933
1934 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
1935
1936         * include/experimental/bits/simd.h (__extract_part, split):
1937         Use reserved name for template parameter.
1938
1939 2023-02-20  Andreas Schwab  <schwab@suse.de>
1940
1941         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
1942
1943 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
1944
1945         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
1946         * doc/html/faq.html: Regenerate.
1947
1948 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1949
1950         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
1951         between scalars requires the __bit_cast helper function instead
1952         of simd_bit_cast.
1953
1954 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1955
1956         * include/experimental/bits/simd_x86.h
1957         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
1958         (_SimdImplX86::_S_less_equal): Do not call
1959         __builtin_is_constant_evaluated in constexpr-if.
1960
1961 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1962
1963         * testsuite/experimental/simd/tests/bits/verify.h
1964         (verify::verify): Use %zx for size_t in format string.
1965
1966 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
1967
1968         * testsuite/experimental/simd/generate_makefile.sh: Generate and
1969         pre-compile pch.h, which includes all headers that do not depend
1970         on command-line macros.
1971         * testsuite/experimental/simd/tests/bits/main.h: New file.
1972         (iterate_abis, main): Moved from verify.h.
1973         * testsuite/experimental/simd/tests/bits/verify.h
1974         (iterate_abis, main): Moved to main.h.
1975         * testsuite/experimental/simd/tests/bits/conversions.h: Add
1976         include guard.
1977         (genHalfBits): Simplify.
1978         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
1979         guard.
1980         (make_alternating_mask): Moved from mask_loadstore.
1981         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
1982         include guard.
1983         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
1984         * testsuite/experimental/simd/tests/mask_loadstore.cc
1985         (make_mask, make_alternating_mask): Removed.
1986         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
1987         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
1988         Removed.
1989         * testsuite/experimental/simd/tests/abs.cc: Only include
1990         bits/main.h.
1991         Ditto.
1992         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
1993         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
1994         * testsuite/experimental/simd/tests/casts.cc: Ditto.
1995         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
1996         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
1997         * testsuite/experimental/simd/tests/generator.cc: Ditto.
1998         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
1999         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
2000         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
2001         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
2002         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
2003         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
2004         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
2005         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
2006         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
2007         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
2008         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
2009         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
2010         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
2011         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
2012         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
2013         * testsuite/experimental/simd/tests/simd.cc: Ditto.
2014         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
2015         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
2016         * testsuite/experimental/simd/tests/splits.cc: Ditto.
2017         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
2018         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
2019         * testsuite/experimental/simd/tests/where.cc: Ditto.
2020
2021 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2022
2023         * testsuite/experimental/simd/README.md: Document the timeout
2024         and timeout-factor directives. Minor typo fixed.
2025
2026 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2027
2028         PR libstdc++/108030
2029         * include/experimental/bits/simd_detail.h: Define
2030         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2031         * include/experimental/bits/simd.h: Annotate lambdas with
2032         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2033         * include/experimental/bits/simd_builtin.h: Ditto.
2034         * include/experimental/bits/simd_converter.h: Ditto.
2035         * include/experimental/bits/simd_fixed_size.h: Ditto.
2036         * include/experimental/bits/simd_math.h: Ditto.
2037         * include/experimental/bits/simd_neon.h: Ditto.
2038         * include/experimental/bits/simd_x86.h: Ditto.
2039
2040 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2041
2042         * include/experimental/bits/simd.h
2043         (_SimdWrapper::_M_is_constprop_none_of)
2044         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
2045         computed result still satisfies __builtin_constant_p.
2046
2047 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2048
2049         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
2050         ellipsis character.
2051
2052 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2053
2054         * include/Makefile.am: Add new header.
2055         * include/Makefile.in: Regenerate.
2056         * include/experimental/synchronized_value: New file.
2057         * testsuite/experimental/synchronized_value.cc: New test.
2058
2059 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2060
2061         * include/experimental/optional: Fix header name in comment.
2062
2063 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2064
2065         * include/std/format (__format::_Arg_store): New class template.
2066         (basic_format_args): Remove nested type _Store and add deduction
2067         guide from _Arg_store.
2068         (basic_format_arg, make_format_args): Adjust.
2069         * testsuite/std/format/arguments/lwg3810.cc: New test.
2070
2071 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2072
2073         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
2074         constraints to constructors and add deleted overloads for the
2075         dangling cases, as per P2255R2.
2076         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
2077         make dangling cases ill-formed.
2078         * testsuite/20_util/pair/dangling_ref.cc: New test.
2079
2080 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2081
2082         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
2083
2084 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2085
2086         * include/ext/throw_allocator.h: Use reserved names for
2087         parameters.
2088
2089 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2090
2091         * testsuite/17_intro/names_pstl.cc: Add space after effective
2092         target name.
2093
2094 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2095
2096         * include/pstl/algorithm_fwd.h (__pattern_search_n)
2097         (__brick_unique_copy, __brick_adjacent_find)
2098         (__brick_generate_n, __pattern_generate_n): Use reserved names
2099         for parameters.
2100         * include/pstl/algorithm_impl.h (__brick_unique_copy)
2101         (__pattern_reverse, __brick_generate_n): Likewise.
2102         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
2103         (__prefer_parallel_tag): Likewise.
2104         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
2105         * include/pstl/glue_numeric_defs.h (adjacent_difference):
2106         Likewise.
2107         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
2108         Likewise.
2109         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
2110         * include/pstl/unseq_backend_simd.h (_Combiner)
2111         (__simd_min_element, __simd_minmax_element): Likewise.
2112         * testsuite/17_intro/names_pstl.cc: New test.
2113
2114 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2115
2116         * include/bits/fs_ops.h (create_directory): Use reserved name
2117         for parameter.
2118         * include/bits/ranges_algo.h (__contains_subrange_fn):
2119         Likewise.
2120         * include/bits/regex_automaton.h (_State_base::_M_print):
2121         Likewise.
2122         * include/bits/regex_automaton.tcc(_State_base::_M_print):
2123         Likewise.
2124         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
2125         * include/experimental/bits/fs_ops.h (create_directory):
2126         Likewise.
2127         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
2128         (recursive_timed_mutex:_M_clocklock): Likewise.
2129         * include/std/tuple (basic_common_reference): Likewise.
2130         * libsupc++/cxxabi_init_exception.h
2131         (__cxa_init_primary_exception): Likewise.
2132         * testsuite/17_intro/names.cc: Add checks.
2133
2134 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
2135
2136         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
2137         to www.open-std.org and https.
2138         * doc/html/manual/status.html: Regenerate.
2139
2140 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2141
2142         PR libstdc++/103934
2143         * include/std/atomic (atomic_flag_wait): Add.
2144         (atomic_flag_wait_explicit): Add.
2145         (atomic_flag_notify): Add.
2146         (atomic_flag_notify_explicit): Add.
2147         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
2148         Add test case to cover missing atomic_flag free functions.
2149
2150 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2151
2152         PR libstdc++/103934
2153         * include/std/atomic (atomic_flag_test): Add.
2154         (atomic_flag_test_explicit): Add.
2155         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
2156         test case to cover missing atomic_flag free functions.
2157         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
2158         Likewise.
2159
2160 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
2161
2162         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
2163         "The Component Object Model" reference.
2164         * doc/html/manual/policy_data_structures.html: Regenerate.
2165
2166 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2167
2168         * doc/xml/manual/containers.xml: Tweak a link to N1780
2169         (C++ standard).
2170         * doc/html/manual/associative.html: Regenerate.
2171
2172 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2173
2174         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
2175         * doc/html/manual/facets.html: Regenerate.
2176
2177 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
2178
2179         * doc/xml/manual/policy_data_structures_biblio.xml: Update
2180         link to "Worst-case efficient priority queues".
2181         * doc/html/manual/policy_data_structures.html: Regenerate.
2182
2183 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2184
2185         * doc/xml/manual/using.xml: Document newly-freestanding
2186         headers and the effect of the -ffreestanding flag.
2187         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
2188         completed.
2189         * doc/xml/manual/configure.xml: Document that hosted installs
2190         respect __STDC_HOSTED__.
2191         * doc/xml/manual/test.xml: Document how to run tests in
2192         freestanding mode.
2193         * doc/html/*: Regenerate.
2194
2195 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2196
2197         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
2198         (__find_last_if_fn): Likewise.
2199
2200 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2201
2202         * include/std/type_traits: Add diagnostic pragmas around
2203         references to deprecated std::aligned_storage and
2204         std::aligned_union traits.
2205         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
2206         Add dg-warning for et c++23.
2207         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
2208         Likewise.
2209         * testsuite/20_util/aligned_storage/value.cc: Likewise.
2210         * testsuite/20_util/aligned_union/1.cc: Likewise.
2211         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
2212         Likewise.
2213
2214 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2215
2216         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
2217         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
2218         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
2219         * include/std/type_traits (aligned_storage, aligned_union)
2220         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
2221         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
2222         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
2223
2224 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2225
2226         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
2227         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
2228         consistent with other 'deprecated' macros.
2229         * include/std/type_traits (is_pod, is_pod_v): Use
2230         _GLIBCXX20_DEPRECATED_SUGGEST instead.
2231
2232 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2233
2234         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
2235         * Makefile.in: Regenerate.
2236         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
2237         There's no history to be compatible with.
2238         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
2239         source files from the build.
2240         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2241         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2242         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2243         * src/Makefile.in: Regenerate.
2244         * src/c++11/Makefile.in: Regenerate.
2245         * src/c++17/Makefile.in: Regenerate.
2246         * src/c++20/Makefile.in: Regenerate.
2247         * src/c++98/Makefile.in: Regenerate.
2248
2249 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2250
2251         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
2252         filesystem, libbacktrace and experimental.
2253         * src/Makefile.in: Regenerate.
2254
2255 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
2256
2257         PR libstdc++/108672
2258         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
2259         instead of int32_t.
2260
2261 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
2262
2263         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
2264         * doc/html/manual/documentation_hacking.html: Regenerate.
2265
2266 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
2267
2268         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
2269         storage to the move-from instance when allocators are equal.
2270         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
2271         New test case.
2272
2273 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
2274
2275         * config/os/gnu-linux/os_defines.h [!__linux__]
2276         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
2277
2278 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2279
2280         * include/bits/ranges_algo.h (__find_last_fn, find_last):
2281         Define.
2282         (__find_last_if_fn, find_last_if): Define.
2283         (__find_last_if_not_fn, find_last_if_not): Define.
2284         * testsuite/25_algorithms/find_last/1.cc: New test.
2285         * testsuite/25_algorithms/find_last_if/1.cc: New test.
2286         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
2287
2288 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2289
2290         * include/bits/ranges_algo.h (out_value_result): Define.
2291         (iota_result): Define.
2292         (__iota_fn, iota): Define.
2293         * testsuite/25_algorithms/iota/1.cc: New test.
2294
2295 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2296
2297         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
2298         (__contains_subrange_fn, contains_subrange): Define.
2299         * testsuite/25_algorithms/contains/1.cc: New test.
2300         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
2301
2302 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2303
2304         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
2305         * doc/html/manual/abi.html: Regenerate.
2306
2307 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2308
2309         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
2310         errc::function_not_supported instead of errc::not_supported.
2311
2312 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2313
2314         * include/std/sstream  (basic_stringbuf::view): Define for old
2315         std::string ABI.
2316         (basic_istringstream::view, basic_0stringstream::view)
2317         (basic_stringstream::view): Likewise.
2318         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
2319         { dg-require-effective-target cxx11_abi }.
2320         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
2321         Likewise.
2322         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
2323         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
2324         Likewise.
2325         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
2326         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
2327         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
2328         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
2329         Likewise.
2330
2331 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2332
2333         PR libstdc++/108636
2334         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
2335         conversion operators for directory iterator comparisons with
2336         std::default_sentinel_t.
2337         * include/bits/fs_path.h (path::path(string_view, _Type))
2338         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
2339         definitions to ...
2340         * src/c++17/fs_path.cc: ... here.
2341         * testsuite/27_io/filesystem/path/108636.cc: New test.
2342
2343 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2344
2345         * include/std/variant (variant::operator=): Implement resolution
2346         of LWG 3585.
2347         * testsuite/20_util/variant/lwg3585.cc: New test.
2348
2349 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2350
2351         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
2352         link to https.
2353         * doc/html/manual/using_exceptions.html: Regenerate.
2354
2355 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2356
2357         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
2358         * doc/html/manual/debug.html: Regenerate.
2359
2360 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2361
2362         * src/c++11/random.cc (random_device::_M_fini): Do not try to
2363         close the file handle if the target doesn't support the
2364         /dev/random and /dev/urandom files.
2365
2366 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2367
2368         * config/os/generic/error_constants.h (errc::value_too_large)
2369         [__AVR__]: Define.
2370         * src/c++11/system_error.cc
2371         (system_category::default_error_condition) [__AVR__]: Only match
2372         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
2373         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
2374         for ENOENT etc. in switch.
2375         (fs::remove_all) [__AVR__]: Likewise.
2376         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
2377         close etc.
2378
2379 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2380
2381         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
2382         embed_zoneinfo=no
2383         * configure: Regenerate.
2384
2385 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
2386
2387         PR testsuite/108632
2388         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
2389         struct at end of S0.
2390
2391 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
2392
2393         * doc/xml/manual/shared_ptr.xml: Move links from both
2394         http://open-std.org and http://www.open-std.org to
2395         https://www.open-std.org.
2396         * doc/html/manual/memory.html: Regenerate.
2397
2398 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2399
2400         * doc/xml/manual/appendix_contributing.xml: Adjust link to
2401         ISO C++ standard at ANSI.
2402         Move link to www.open-std.org to https.
2403         * doc/html/manual/appendix_contributing.html: Regenerate.
2404
2405 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2406
2407         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
2408         links to https.
2409         * doc/html/manual/documentation_hacking.html: Regenerate.
2410
2411 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2412
2413         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
2414         * doc/html/manual/abi.html: Regenerate.
2415
2416 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
2417
2418         PR libstdc++/108568
2419         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
2420         include features.h if present and then check __GLIBC__ and
2421         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
2422         __GLIBC_PREREQ which isn't defined yet.
2423
2424 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2425
2426         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
2427         string literal.
2428
2429 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2430
2431         PR libstdc++/108554
2432         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
2433
2434 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2435
2436         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
2437         rules named "+" for compatibility with older tzdata.zi files.
2438
2439 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2440
2441         PR libstdc++/108554
2442         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
2443         nonnull attribute.
2444         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
2445         attributes.
2446         * testsuite/23_containers/map/modifiers/108554.cc: New test.
2447
2448 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2449
2450         PR libstdc++/108530
2451         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
2452         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
2453
2454 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
2455
2456         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
2457         use https.
2458         * doc/html/manual/bugs.html: Regenerate.
2459
2460 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2461
2462         PR libstdc++/108530
2463         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
2464         /etc/sysconfig/clock.
2465
2466 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2467
2468         PR libstdc++/102301
2469         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
2470         std::make_reverse_iterator.
2471         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
2472         (make_from_tuple): Add static assertion from P2255 to diagnose
2473         dangling references.
2474         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
2475         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
2476
2477 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
2478
2479         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
2480         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
2481         (_Safe_iterator::operator++(int)): Use latter.
2482         (_Safe_iterator::operator--(int)): Likewise.
2483         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
2484         check.
2485         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
2486         New.
2487         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
2488         (_Safe_local_iterator::operator++(int)): Use latter.
2489         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
2490         entry associated to the array entry.
2491
2492 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2493
2494         * include/bits/fs_path.h (u8path): Add deprecated attribute.
2495         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
2496         -Wno-deprecated-declarations for C++20 and later.
2497         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
2498         Likewise.
2499         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
2500         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2501         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
2502
2503 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2504
2505         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
2506         Always call _M_fini and _M_getentropy.
2507
2508 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
2509
2510         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
2511         to www.open-std.org to use https.
2512         (COM: Component Model Object Technologies): Rename from...
2513         (The Component Object Model): ...to.
2514         * doc/html/manual/policy_data_structures.html: Regenerate.
2515
2516 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
2517
2518         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
2519         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
2520         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
2521
2522 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
2523
2524         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
2525         of $host. Fix check for file being present during native build.
2526         * configure: Regenerate.
2527
2528 2023-01-17  Martin Liska  <mliska@suse.cz>
2529
2530         * src/libbacktrace/Makefile.in: Regenerate.
2531
2532 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2533
2534         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
2535
2536 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2537
2538         PR libstdc++/108413
2539         * include/c_compatibility/stdatomic.h: Change copyright line to
2540         be consistent with other headers contributed under DCO terms.
2541         * include/std/expected: Add full stop to copyright line.
2542         * src/c++20/tzdb.cc: Likewise.
2543
2544 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
2545
2546         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
2547         https.
2548         * doc/xml/manual/status_cxx2017.xml: Ditto.
2549         * doc/xml/manual/status_cxx2020.xml: Ditto.
2550         * doc/xml/manual/status_cxx2023.xml: Ditto.
2551         * doc/html/manual/status.html: Regenerate.
2552
2553 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2554
2555         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
2556         and fail gracefully if defining the weak symbol doesn't work.
2557
2558 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
2559
2560         PR libstdc++/108288
2561         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
2562         fix to other iterator category.
2563         (_Safe_iterator<>::operator--(int)): Likewise.
2564         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
2565         Fix deadlock.
2566         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
2567         (invalid_local_iterator_post_increment): New.
2568         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
2569         New test.
2570         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
2571         New test.
2572
2573 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2574
2575         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
2576         dg-options.
2577
2578 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2579
2580         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
2581
2582 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2583
2584         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
2585         windows.h. Add pecoff as FORMAT_FILE.
2586         * config.h.in: Regenerate.
2587         * configure: Regenerate.
2588         * src/libbacktrace/Makefile.am: Regenerate.
2589         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
2590
2591 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2592
2593         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
2594         raw __name if __cxa_demangle could not demangle it.
2595
2596 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2597
2598         PR libstdc++/108409
2599         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
2600         variable.
2601
2602 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2603
2604         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
2605         loading tzdb.
2606         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
2607         effective target.
2608         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2609
2610 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2611
2612         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
2613         --with-libstdcxx-zoneinfo-dir configure option with
2614         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
2615         a directory.
2616         * config.h.in: Regenerate.
2617         * configure: Regenerate.
2618         * doc/xml/manual/configure.xml: Document configure option.
2619         * doc/html/manual/configure.html: Regenerate.
2620         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
2621         * src/c++20/Makefile.in: Regenerate.
2622         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
2623         null pointer if no directory is configured.
2624         (zoneinfo_dir): Replace with ...
2625         (zoneinfo_file): New function.
2626         (tzdata_stream): New istream class.
2627         (remote_version, reload_tzdb): Use tzdata_stream.
2628         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
2629         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
2630         tzdata.zi file in default location.
2631         * src/c++20/tzdata.zi: New file.
2632
2633 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2634
2635         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
2636         * testsuite/std/time/month_day/io.cc: New test.
2637         * testsuite/std/time/month_day_last/io.cc: New test.
2638         * testsuite/std/time/month_weekday/io.cc: New test.
2639         * testsuite/std/time/month_weekday_last/io.cc: New test.
2640         * testsuite/std/time/weekday_indexed/io.cc: New test.
2641         * testsuite/std/time/weekday_last/io.cc: New test.
2642         * testsuite/std/time/year_month/io.cc: New test.
2643         * testsuite/std/time/year_month_day_last/io.cc: New test.
2644         * testsuite/std/time/year_month_weekday/io.cc: New test.
2645         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
2646
2647 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
2648
2649         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
2650         specifications.
2651         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
2652         export.
2653
2654 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2655
2656         * include/bits/std_mutex.h: Include <errno.h>.
2657
2658 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2659
2660         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
2661         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
2662         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
2663         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
2664         std::make_unique with a freestanding-compatible wrapper around
2665         unique_ptr.
2666         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
2667         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
2668         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2669         Ditto.
2670         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
2671         of __cpp_lib_ranges in !HOSTED.
2672
2673 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2674
2675         * include/Makefile.am: Install bits/char_traits.h,
2676         std/string_view
2677         * include/Makefile.in: Regenerate.
2678         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
2679         mbstate-only bits behind appropriate #ifs.
2680         * include/std/string_view: Gate <iostream> functionality behind
2681         HOSTED.
2682         * include/std/version: Enable __cpp_lib_constexpr_string_view
2683         and __cpp_lib_starts_ends_with in !HOSTED.
2684         * include/std/ranges: Re-enable __is_basic_string_view on
2685         freestanding, include <string_view> directly.
2686         * include/precompiled/stdc++.h: Include <string_view> when
2687         !HOSTED too.
2688         * testsuite/20_util/function_objects/searchers.cc: Skip testing
2689         boyer_moore searchers on freestanding
2690         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
2691         <string>-related tests behind __STDC_HOSTED__.
2692         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
2693         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
2694         unused <stdexcept> include.
2695         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
2696         unused <vector> include.
2697         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
2698         Guard <string> related testing behind __STDC_HOSTED__.
2699         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
2700         Guard <stdexcept> related tests behind __STDC_HOSTED__.
2701         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
2702         Ditto.
2703         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
2704         Guard <stdexcept> tests behind __STDC_HOSTED__.
2705         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2706         Enable test on freestanding, guard <stdexcept> bits behind
2707         __STDC_HOSTED__.
2708         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
2709         Guard <stdexcept> bits behind __STDC_HOSTED__.
2710         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
2711         Ditto.
2712
2713 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
2714
2715         PR libstdc++/86419
2716         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
2717         errors in incomplete multibyte sequences.
2718         (utf16_in): Remove surrogates parameter. Fix conditions for
2719         returning partial.
2720         (utf16_out): Fix condition for returning partial.
2721         (ucs2_in): Do not pass surrogates argument to utf16_in.
2722         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
2723         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
2724         tests.
2725         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
2726         test.
2727
2728 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2729
2730         PR libstdc++/108331
2731         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
2732         __GTHREAD_LEGACY_MUTEX_T if defined.
2733
2734 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2735
2736         PR libstdc++/108327
2737         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
2738         Export __try_use_facet specializations for facets in namespace
2739         __gnu_cxx_ldbl128.
2740         * config/os/gnu-linux/ldbl-ieee128-extra.ver
2741         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
2742         __gnu_cxx_ieee128.
2743         * testsuite/util/testsuite_abi.cc: Add to lists of known and
2744         latest versions.
2745
2746 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2747
2748         * include/bits/std_mutex.h: Remove <system_error> include.
2749         * include/std/condition_variable: Add <bits/error_constants.h>
2750         include.
2751         * include/std/mutex: Likewise.
2752         * include/std/shared_mutex: Likewise.
2753
2754 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2755
2756         PR libstdc++/77691
2757         * include/experimental/memory_resource
2758         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
2759         (do_allocate, do_deallocate): Check it.
2760         * testsuite/experimental/memory_resource/new_delete_resource.cc:
2761         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
2762
2763 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2764
2765         * doc/xml/manual/abi.xml: Add latest library versions.
2766         * doc/html/manual/abi.html: Regenerate.
2767
2768 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
2769
2770         PR libstdc++/107189
2771         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
2772         unused _Alloc_node instance.
2773
2774 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2775
2776         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
2777         Define as unsigned long if always lock-free, and unsigned int
2778         otherwise.
2779
2780 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2781
2782         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
2783         __catch macros for exception handling.
2784
2785 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2786
2787         PR libstdc++/108221
2788         * include/bits/stl_algobase.h (__lg): Replace six overloads with
2789         a single function template for all integer types.
2790         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
2791         arithmetic results back to _Distance.
2792
2793 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2794
2795         PR libstdc++/108221
2796         * include/std/span (span::span()): Un-simplify constraint to
2797         work for size_t of lesser rank than int.
2798
2799 2023-01-07  LIU Hao  <lh_mouse@126.com>
2800
2801         PR middle-end/108300
2802         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
2803         <windows.h>.
2804         * src/c++11/thread.cc: Likewise.
2805         * src/c++17/fs_ops.cc: Likewise.
2806         * src/filesystem/ops.cc: Likewise.
2807
2808 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2809
2810         PR libstdc++/108228
2811         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
2812
2813 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2814
2815         PR libstdc++/108235
2816         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
2817         template and partial specialization for synchronizing access to
2818         time_zone::_Impl::infos.
2819         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
2820         rules_counter.
2821
2822 2023-01-06  Patrick Palka  <ppalka@redhat.com>
2823
2824         PR libstdc++/108260
2825         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
2826         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
2827         (__cpp_lib_ranges_chunk): Likewise.
2828         (__cpp_lib_ranges_slide): Likewise.
2829         (__cpp_lib_ranges_chunk_by): Likewise.
2830         (__cpp_lib_ranges_join_with): Likewise.
2831         (__cpp_lib_ranges_repeat): Likewise.
2832         (__cpp_lib_ranges_stride): Likewise.
2833         (__cpp_lib_ranges_cartesian_product): Likewise.
2834         (__cpp_lib_ranges_as_rvalue): Likewise.
2835         * include/std/version: Ditto.
2836         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
2837         feature-test macro.
2838         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
2839         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
2840         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
2841         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
2842         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
2843         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
2844         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
2845         * testsuite/std/ranges/repeat/1.cc: Likewise.
2846         * testsuite/std/ranges/zip/1.cc: Likewise.
2847         * testsuite/std/ranges/version_c++23.cc: New test.
2848
2849 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2850
2851         PR libstdc++/108214
2852         * include/std/bitset (operator>>): Use alloca in the right
2853         scope, not in a constructor.
2854         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
2855
2856 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2857
2858         PR libstdc++/108221
2859         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
2860         Disable visiting floating-point types.
2861
2862 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2863
2864         PR libstdc++/108288
2865         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
2866         (_Safe_iterator::operator--(int)): Do not hold lock around
2867         construction of return value.
2868
2869 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
2870
2871         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
2872         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
2873         lock release.  Revise loop.
2874         (__atomic_add): Likewise.
2875
2876 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2877
2878         PR libstdc++/108212
2879         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
2880         variable.
2881         (StdChronoTimePointPrinter::to_string): Use it.
2882
2883 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2884
2885         PR libstdc++/108290
2886         * include/std/functional (_Bind_front): Add no_unique_address
2887         attribute to data members.
2888         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
2889         size of call wrappers with empty types for targets and bound
2890         arguments.
2891
2892 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2893
2894         PR libstdc++/108211
2895         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
2896         using only last component of the name.
2897
2898 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2899
2900         PR libstdc++/108228
2901         PR libstdc++/108235
2902         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
2903         the latest symbol version.
2904         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
2905         atomic<_Node*> is not always lock free.
2906         (USE_ATOMIC_LIST_HEAD): New macro.
2907         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
2908         definition of weak symbol.
2909         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
2910         (tzdb_list::_Node::_S_list_head): New function for accessing
2911         list head efficiently.
2912         (tzdb_list::_Node::_S_cache_list_head): New function for
2913         updating _S_list_head.
2914
2915 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2916
2917         PR libstdc++/108265
2918         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
2919         duration rep is unsigned.
2920         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
2921
2922 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
2923
2924         PR libstdc++/108228
2925         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
2926         Add __gnu_cxx::zoneinfo_dir_override().
2927
2928 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
2929
2930         PR libstdc++/108258
2931         * include/std/array (__array_traits<T, 0>::operator T*()): Add
2932         constexpr.
2933         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
2934         std::array<T, 0>::data().
2935
2936 \f
2937 Copyright (C) 2023 Free Software Foundation, Inc.
2938
2939 Copying and distribution of this file, with or without modification,
2940 are permitted in any medium without royalty provided the copyright
2941 notice and this notice are preserved.