libstdc++-v3/ChangeLog

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