libstdc++-v3/ChangeLog

   1 2023-06-16  Alexandre Oliva  <oliva@adacore.com>
   2
   3         * testsuite/20_util/from_chars/4.cc: Skip long double on
   4         aarch64-rtems.
   5
   6 2023-06-16  Joel Brobecker  <brobecker@adacore.com>
   7
   8         * configure.ac ["x${with_newlib}" = "xyes"]: Define
   9         HAVE_HYPOTF.  Add compile-checks for various long double
  10         math functions as well.
  11         * configure: Regenerate.
  12
  13 2023-06-14  Jonny Grant  <jg@jguk.org>
  14
  15         * doc/xml/manual/extensions.xml: Remove demangle exception
  16         description and include.
  17         * doc/html/manual/ext_demangling.html: Regenerate.
  18
  19 2023-06-10  Hans-Peter Nilsson  <hp@axis.com>
  20
  21         * testsuite/27_io/basic_istream/ignore/wchar_t/94749.cc (main)
  22         [! SIMULATOR_TEST]: Also exclude running test05.
  23         * testsuite/27_io/basic_istream/ignore/char/94749.cc: Ditto.
  24
  25 2023-06-09  Ken Matsui  <kmatsui@cs.washington.edu>
  26
  27         * include/std/type_traits: Use using instead of typedef
  28
  29 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
  30
  31         PR libstdc++/110077
  32         * src/c++17/floating_from_chars.cc (from_chars) <_Float128>:
  33         Only define if _Float128 and long double have different
  34         representations.
  35
  36 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
  37
  38         PR libstdc++/100285
  39         * include/experimental/internet [IPPROTO_TCP || IPPROTO_UDP]
  40         (basic_endpoint, basic_resolver_entry, resolver_base)
  41         (basic_resolver_results, basic_resolver): Only define if the tcp
  42         or udp protocols will be defined.
  43
  44 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
  45
  46         * acinclude.m4 (libtool_VERSION): Update to 6.0.33.
  47         * configure: Regenerate.
  48         * doc/xml/manual/abi.xml: Add libstdc++.so.6.0.33.
  49         * doc/html/manual/abi.html: Regenerate.
  50
  51 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
  52
  53         PR libstdc++/110149
  54         * include/std/format (formatter<const void*, charT>::parse):
  55         Only alow 0 and P for C++26 and non-strict modes.
  56         (formatter<const void*, charT>::format): Use toupper for P
  57         type, and insert zero-fill characters for 0 option.
  58         * testsuite/std/format/functions/format.cc: Check pointer
  59         formatting. Only check P2510R3 extensions conditionally.
  60         * testsuite/std/format/parse_ctx.cc: Only check P2510R3
  61         extensions conditionally.
  62
  63 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
  64
  65         PR libstdc++/110167
  66         * include/std/array (to_array): Initialize arrays of trivial
  67         types using memcpy. For non-trivial types, use lambda
  68         expressions instead of a separate helper function.
  69         (__to_array): Remove.
  70         * testsuite/23_containers/array/creation/110167.cc: New test.
  71
  72 2023-06-09  Jonathan Wakely  <jwakely@redhat.com>
  73
  74         * testsuite/23_containers/deque/modifiers/emplace/52799.cc:
  75         Removed.
  76         * testsuite/23_containers/deque/modifiers/emplace/const_iterator.cc:
  77         Removed.
  78         * testsuite/23_containers/list/modifiers/emplace/52799.cc:
  79         Removed.
  80         * testsuite/23_containers/list/modifiers/emplace/const_iterator.cc:
  81         Removed.
  82         * testsuite/23_containers/vector/modifiers/emplace/52799.cc:
  83         Removed.
  84         * testsuite/23_containers/vector/modifiers/emplace/const_iterator.cc:
  85         Removed.
  86         * testsuite/23_containers/deque/modifiers/emplace/1.cc: New
  87         test.
  88         * testsuite/23_containers/list/modifiers/emplace/1.cc: New
  89         test.
  90         * testsuite/23_containers/vector/modifiers/emplace/1.cc: New
  91         test.
  92
  93 2023-06-07  Jakub Jelinek  <jakub@redhat.com>
  94
  95         PR libstdc++/110145
  96         * testsuite/20_util/to_chars/double.cc: Include <cfloat>.
  97         (double_to_chars_test_cases,
  98         double_scientific_precision_to_chars_test_cases_2,
  99         double_fixed_precision_to_chars_test_cases_2): #if out 1e126, 4.91e-6
 100         and 5.547e-6 tests if FLT_EVAL_METHOD is negative or larger than 1.
 101         Add unconditional tests with corresponding double constants
 102         0x1.7a2ecc414a03fp+418, 0x1.4981285e98e79p-18 and
 103         0x1.7440bbff418b9p-18.
 104
 105 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 106
 107         * testsuite/util/testsuite_abi.cc (check_version): Re-add
 108         CXXABI_1.3.14.
 109
 110 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 111
 112         * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc:
 113         Require effective target exceptions_enabled instead of using
 114         dg-skip-if.
 115         * testsuite/23_containers/vector/capacity/constexpr.cc: Expect
 116         shrink_to_fit() to be a no-op without exceptions enabled.
 117         * testsuite/23_containers/vector/capacity/shrink_to_fit.cc:
 118         Likewise.
 119         * testsuite/ext/bitmap_allocator/check_allocate_max_size.cc:
 120         Require effective target exceptions_enabled.
 121         * testsuite/ext/malloc_allocator/check_allocate_max_size.cc:
 122         Likewise.
 123         * testsuite/ext/mt_allocator/check_allocate_max_size.cc:
 124         Likewise.
 125         * testsuite/ext/new_allocator/check_allocate_max_size.cc:
 126         Likewise.
 127         * testsuite/ext/pool_allocator/check_allocate_max_size.cc:
 128         Likewise.
 129         * testsuite/ext/throw_allocator/check_allocate_max_size.cc:
 130         Likewise.
 131
 132 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 133
 134         * testsuite/20_util/duration/cons/2.cc: Use values that aren't
 135         affected by rounding.
 136         * testsuite/20_util/from_chars/5.cc: Cast arithmetic result to
 137         double before comparing for equality.
 138         * testsuite/20_util/from_chars/6.cc: Likewise.
 139         * testsuite/20_util/variant/86874.cc: Use values that aren't
 140         affected by rounding.
 141         * testsuite/25_algorithms/lower_bound/partitioned.cc: Compare to
 142         original value instead of to floating-point-literal.
 143         * testsuite/26_numerics/random/discrete_distribution/cons/range.cc:
 144         Cast arithmetic result to double before comparing for equality.
 145         * testsuite/26_numerics/random/piecewise_constant_distribution/cons/range.cc:
 146         Likewise.
 147         * testsuite/26_numerics/random/piecewise_linear_distribution/cons/range.cc:
 148         Likewise.
 149         * testsuite/26_numerics/valarray/transcend.cc (eq): Check that
 150         the absolute difference is less than 0.01 instead of comparing
 151         to two decimal places.
 152         * testsuite/27_io/basic_istream/extractors_arithmetic/char/01.cc:
 153         Cast arithmetic result to double before comparing for equality.
 154         * testsuite/27_io/basic_istream/extractors_arithmetic/char/09.cc:
 155         Likewise.
 156         * testsuite/27_io/basic_istream/extractors_arithmetic/char/10.cc:
 157         Likewise.
 158         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/01.cc:
 159         Likewise.
 160         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/09.cc:
 161         Likewise.
 162         * testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/10.cc:
 163         Likewise.
 164         * testsuite/ext/random/hoyt_distribution/cons/parms.cc: Likewise.
 165
 166 2023-06-07  Jonathan Wakely  <jwakely@redhat.com>
 167
 168         Revert:
 169         2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 170
 171         * configure.ac: Use AS_IF.
 172         * configure: Regenerate.
 173
 174 2023-06-07  Thomas Schwinge  <thomas@codesourcery.com>
 175
 176         * testsuite/lib/prune.exp (libstdc++-dg-prune): Support
 177         'UNSUPPORTED: [...]: exception handling disabled'.
 178
 179 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 180
 181         * testsuite/util/testsuite_abi.cc (check_version): Add
 182         CXXABI_1.3.15 symver and make it the latestp. Remove
 183         GLIBCXX_IEEE128_3.4.31 and GLIBCXX_LDBL_3.4.31 from latestp.
 184
 185 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 186             Jakub Jelinek  <jakub@redhat.com>
 187
 188         PR libstdc++/104772
 189         * include/std/limits: (numeric_limits<__float128>): Define
 190         for __STRICT_ANSI__ as well.
 191         * testsuite/18_support/numeric_limits/128bit.cc: Remove
 192         check for __STRICT_ANSI__.
 193
 194 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 195
 196         * configure.ac: Use AS_IF.
 197         * configure: Regenerate.
 198
 199 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 200
 201         PR libstdc++/109822
 202         * include/experimental/bits/simd_builtin.h (_S_store): Rewrite
 203         to avoid casts to other vector types. Implement store as
 204         succession of power-of-2 sized memcpy to avoid PR90424.
 205
 206 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 207
 208         PR libstdc++/110054
 209         * include/experimental/bits/simd_builtin.h (_S_masked_store):
 210         Call into deduced ABI's SimdImpl after conversion.
 211         * include/experimental/bits/simd_x86.h (_S_masked_store_nocvt):
 212         Don't use _mm_maskmoveu_si128. Use the generic fall-back
 213         implementation. Also fix masked stores without SSE2, which
 214         were not doing anything before.
 215
 216 2023-06-06  Matthias Kretz  <m.kretz@gsi.de>
 217
 218         * include/experimental/bits/simd.h (__bit_cast): Use
 219         __gnu__::__vector_size__ instead of gnu::vector_size.
 220
 221 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 222
 223         PR libstdc++/110139
 224         * include/std/array (__array_traits<T, 0>::operator T*()): Make
 225         conversion operator explicit.
 226         (array::front): Use size_type as subscript operand.
 227         (array::data): Use static_cast to make conversion explicit.
 228         * testsuite/23_containers/array/element_access/110139.cc: New
 229         test.
 230
 231 2023-06-06  Joseph Faulls  <Joseph.Faulls@imgtec.com>
 232
 233         * include/bits/locale_classes.tcc: Remove check for
 234         codecvt<char8_t, char, mbstate_t> facet.
 235
 236 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 237
 238         * src/filesystem/ops-common.h (do_copy_file) [O_CLOEXEC]: Set
 239         close-on-exec flag on file descriptors.
 240
 241 2023-06-06  Jonathan Wakely  <jwakely@redhat.com>
 242
 243         PR libstdc++/108178
 244         * src/filesystem/ops-common.h (do_copy_file): Check for empty
 245         files by trying to read a character.
 246         * testsuite/27_io/filesystem/operations/copy_file_108178.cc:
 247         New test.
 248
 249 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 250
 251         * acinclude.m4 (_GLIBCXX_USE_COPY_FILE_RANGE): Define.
 252         * config.h.in: Regenerate.
 253         * configure: Regenerate.
 254         * src/filesystem/ops-common.h (copy_file_copy_file_range):
 255         Define new function.
 256         (do_copy_file): Use it.
 257
 258 2023-06-06  Jannik Glückert  <jannik.glueckert@gmail.com>
 259
 260         * acinclude.m4 (_GLIBCXX_HAVE_LSEEK): Define.
 261         * config.h.in: Regenerate.
 262         * configure: Regenerate.
 263         * src/filesystem/ops-common.h (copy_file_sendfile): Define new
 264         function for sendfile logic. Loop to support large files. Skip
 265         zero-length files.
 266         (do_copy_file): Use it.
 267
 268 2023-06-04  Jason Merrill  <jason@redhat.com>
 269
 270         PR c++/97720
 271         * libsupc++/eh_call.cc (__cxa_call_terminate): Take void*.
 272         * config/abi/pre/gnu.ver: Add it.
 273
 274 2023-06-02  François Dumont  <fdumont@gcc.gnu.org>
 275
 276         * include/parallel/algobase.h: Include <parallel/search.h>.
 277
 278 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 279
 280         * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc:
 281         Add const to equality operator.
 282
 283 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 284
 285         * include/std/expected (expected::and_then, expected::or_else)
 286         (expected::transform_error): Use _M_val and _M_unex instead of
 287         calling value() and error(), as per LWG 3938.
 288         (expected::transform): Likewise. Remove incorrect std::move
 289         calls from lvalue overloads.
 290         (expected<void, E>::and_then, expected<void, E>::or_else)
 291         (expected<void, E>::transform): Use _M_unex instead of calling
 292         error().
 293         * testsuite/20_util/expected/lwg3877.cc: Add checks for and_then
 294         and transform, and for std::expected<void, E>.
 295         * testsuite/20_util/expected/lwg3938.cc: New test.
 296
 297 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 298
 299         PR libstdc++/110060
 300         * include/bits/stl_vector.h (_Vector_base::_M_invariant):
 301         Remove.
 302         (vector::size, vector::capacity): Remove calls to _M_invariant.
 303         * include/bits/vector.tcc (vector::_M_fill_assign): Add
 304         optimization hint to reallocating path.
 305         (vector::_M_assign_aux(FwdIter, FwdIter, forward_iterator_tag)):
 306         Likewise.
 307         * testsuite/23_containers/vector/capacity/invariant.cc: Moved
 308         to...
 309         * testsuite/23_containers/vector/modifiers/assign/no_realloc.cc:
 310         ...here. Check assign(FwdIter, FwdIter) too.
 311         * testsuite/23_containers/vector/types/1.cc: Revert addition
 312         of -Wno-stringop-overread option.
 313
 314 2023-06-01  Jonathan Wakely  <jwakely@redhat.com>
 315
 316         * doc/xml/manual/evolution.xml: Document removal of implicit
 317         allocator rebinding extensions in strict mode and for C++20.
 318         * doc/html/*: Regenerate.
 319
 320 2023-06-01  Jason Merrill  <jason@redhat.com>
 321
 322         * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Don't check
 323         handlers in the cleanup phase.
 324
 325 2023-06-01  Matthias Kretz  <m.kretz@gsi.de>
 326
 327         PR libstdc++/110050
 328         * include/experimental/bits/simd.h (__vectorized_sizeof): With
 329         __have_neon_a32 only single-precision float works (in addition
 330         to integers).
 331
 332 2023-06-01  François Dumont  <fdumont@gcc.gnu.org>
 333
 334         * include/bits/stl_algo.h
 335         (std::__search, std::search(_FwdIt1, _FwdIt1, _FwdIt2, _FwdIt2, _BinPred)): Move...
 336         * include/bits/stl_algobase.h: ...here.
 337         * include/std/functional: Replace <stl_algo.h> include by <stl_algobase.h>.
 338         * include/parallel/algo.h (std::__parallel::search<_FIt1, _FIt2, _BinaryPred>)
 339         (std::__parallel::__search_switch<_FIt1, _FIt2, _BinaryPred, _ItTag1, _ItTag2>):
 340         Move...
 341         * include/parallel/algobase.h: ...here.
 342         * include/experimental/functional: Remove <bits/stl_algo.h> and <parallel/algorithm>
 343         includes. Include <bits/stl_algobase.h>.
 344
 345 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 346
 347         PR libstdc++/109818
 348         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add separate check for
 349         float_t and double_t and define HAVE_C99_FLT_EVAL_TYPES.
 350         * config.h.in: Regenerate.
 351         * configure: Regenerate.
 352         * include/c_global/cmath (float_t, double_t): Guard using new
 353         _GLIBCXX_HAVE_C99_FLT_EVAL_TYPES macro.
 354
 355 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 356
 357         * acinclude.m4 (GLIBCXX_ENABLE_C99): Add checks for C99 math
 358         functions and define _GLIBCXX_USE_C99_MATH_FUNCS. Move checks
 359         for C99 rounding functions to here.
 360         (GLIBCXX_CHECK_C99_TR1): Remove checks for C99 rounding
 361         functions from here.
 362         * config.h.in: Regenerate.
 363         * configure: Regenerate.
 364         * include/bits/random.h: Use _GLIBCXX_USE_C99_MATH_FUNCS instead
 365         of _GLIBCXX_USE_C99_MATH_TR1.
 366         * include/bits/random.tcc: Likewise.
 367         * include/c_compatibility/math.h: Likewise.
 368         * include/c_global/cmath: Likewise.
 369         * include/ext/random: Likewise.
 370         * include/ext/random.tcc: Likewise.
 371         * include/std/complex: Likewise.
 372         * testsuite/20_util/from_chars/4.cc: Likewise.
 373         * testsuite/20_util/from_chars/8.cc: Likewise.
 374         * testsuite/26_numerics/complex/proj.cc: Likewise.
 375         * testsuite/26_numerics/headers/cmath/60401.cc: Likewise.
 376         * testsuite/26_numerics/headers/cmath/types_std_c++0x.cc:
 377         Likewise.
 378         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 379         Likewise.
 380         * testsuite/util/testsuite_random.h: Likewise.
 381
 382 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 383
 384         * include/bits/stl_vector.h (_Vector_base::_M_invariant()): New
 385         function.
 386         (vector::size(), vector::capacity()): Call _M_invariant().
 387         * testsuite/23_containers/vector/capacity/invariant.cc: New test.
 388         * testsuite/23_containers/vector/types/1.cc: Add suppression for
 389         false positive warning (PR110060).
 390
 391 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 392
 393         PR libstdc++/109921
 394         * src/c++17/floating_from_chars.cc: Check __FLT128_MANT_DIG__ is
 395         defined before trying to use _Float128.
 396
 397 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 398
 399         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Fix for 32-bit pointers
 400         to check __INT_PTR_WIDTH__ instead of sizeof(void*).
 401         * configure: Regenerate.
 402
 403 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 404
 405         * include/bits/unique_lock.h: Include <bits/error_constants.h>
 406         here for std::errc constants.
 407         * include/std/mutex: Do not include <bits/error_constants.h> and
 408         <exception> here.
 409
 410 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 411
 412         * configure.ac: Replace use of -o operator for test.
 413         * configure: Regenerate.
 414
 415 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 416
 417         * include/std/scoped_allocator (scoped_allocator_adaptor): Add
 418         noexcept to all constructors except the default constructor.
 419         (scoped_allocator_adaptor::inner_allocator): Add noexcept.
 420         (scoped_allocator_adaptor::outer_allocator): Likewise.
 421         * testsuite/20_util/scoped_allocator/noexcept.cc: New test.
 422
 423 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 424
 425         PR libstdc++/104772
 426         * include/std/limits (numeric_limits<__float128>): Define.
 427         * testsuite/18_support/numeric_limits/128bit.cc: New test.
 428
 429 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 430
 431         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Extend logic for avr and
 432         msp430 to all 16-bit targets.
 433         * configure: Regenerate.
 434
 435 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 436
 437         PR libstdc++/109921
 438         * src/c++17/floating_from_chars.cc (USE_STRTOF128_FOR_FROM_CHARS):
 439         Only define when USE_STRTOD_FOR_FROM_CHARS is also defined.
 440         (USE_STRTOD_FOR_FROM_CHARS): Do not undefine when long double is
 441         binary64.
 442         (from_chars(const char*, const char*, double&, chars_format)):
 443         Check __LDBL_MANT_DIG__ == __DBL_MANT_DIG__ here.
 444         (from_chars(const char*, const char*, _Float128&, chars_format))
 445         Only use from_chars_strtod when USE_STRTOD_FOR_FROM_CHARS is
 446         defined, otherwise parse a long double and convert to _Float128.
 447
 448 2023-05-31  Jonathan Wakely  <jwakely@redhat.com>
 449
 450         PR libstdc++/109922
 451         * include/std/iomanip (operator>>(basic_istream&, _Setfill)):
 452         Add deprecated attribute to non-standard overload.
 453         * doc/xml/manual/evolution.xml: Document deprecation.
 454         * doc/html/*: Regenerate.
 455         * testsuite/27_io/manipulators/standard/char/1.cc: Add
 456         dg-warning for expected deprecated warning.
 457         * testsuite/27_io/manipulators/standard/char/2.cc: Likewise.
 458         * testsuite/27_io/manipulators/standard/wchar_t/1.cc: Likewise.
 459         * testsuite/27_io/manipulators/standard/wchar_t/2.cc: Likewise.
 460
 461 2023-05-30  Alexandre Oliva  <oliva@adacore.com>
 462
 463         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 464         on x86_64-vxworks.
 465         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 466         x86_64-vxworks.
 467
 468 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 469
 470         PR libstdc++/109822
 471         * include/experimental/bits/simd.h (to_native): Use int NTTP
 472         as specified in PTS2.
 473         (to_compatible): Likewise. Add missing tag to call mask
 474         generator ctor.
 475         * testsuite/experimental/simd/pr109822_cast_functions.cc: New
 476         test.
 477
 478 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 479
 480         * testsuite/experimental/simd/tests/integer_operators.cc:
 481         Compute expected value differently to avoid getting turned into
 482         a vector shift.
 483
 484 2023-05-30  Matthias Kretz  <m.kretz@gsi.de>
 485
 486         * testsuite/experimental/simd/tests/operator_cvt.cc: Make long
 487         double <-> (u)long conversion tests conditional on sizeof(long
 488         double) and sizeof(long).
 489
 490 2023-05-26  Matthias Kretz  <m.kretz@gsi.de>
 491
 492         * include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
 493         Negative __y is UB, so prefer signed compare.
 494
 495 2023-05-25  Jonathan Wakely  <jwakely@redhat.com>
 496
 497         * testsuite/util/testsuite_allocator.h (PointerBase): Add
 498         relational operators.
 499
 500 2023-05-25  Alexandre Oliva  <oliva@adacore.com>
 501
 502         * testsuite/20_util/to_chars/long_double.cc: Expect execution
 503         fail on x86-vxworks.
 504
 505 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 506
 507         PR libstdc++/109949
 508         * include/experimental/bits/simd.h (__intrinsic_type): If
 509         __ALTIVEC__ is defined, map gnu::vector_size types to their
 510         corresponding __vector T types without losing unsignedness of
 511         integer types. Also prefer long long over long.
 512         * include/experimental/bits/simd_ppc.h (_S_popcount): Cast mask
 513         object to the expected unsigned vector type.
 514
 515 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 516
 517         PR libstdc++/109261
 518         * include/experimental/bits/simd.h (__intrinsic_type):
 519         Specialize __intrinsic_type<double, 8> and
 520         __intrinsic_type<double, 16> in any case, but provide the member
 521         type only with __aarch64__.
 522
 523 2023-05-24  Matthias Kretz  <m.kretz@gsi.de>
 524
 525         PR libstdc++/109261
 526         * include/experimental/bits/simd_neon.h (_S_reduce): Add
 527         constexpr and make NEON implementation conditional on
 528         not __builtin_is_constant_evaluated.
 529
 530 2023-05-23  Matthias Kretz  <m.kretz@gsi.de>
 531
 532         PR libstdc++/109261
 533         * include/experimental/bits/simd.h (_SimdWrapper::_M_set):
 534         Avoid vector builtin subscripting in constant expressions.
 535         (resizing_simd_cast): Avoid memcpy if constant_evaluated.
 536         (const_where_expression, where_expression, where)
 537         (__extract_part, simd_mask, _SimdIntOperators, simd): Add either
 538         _GLIBCXX_SIMD_CONSTEXPR (on public APIs), or constexpr (on
 539         internal APIs).
 540         * include/experimental/bits/simd_builtin.h (__vector_permute)
 541         (__vector_shuffle, __extract_part, _GnuTraits::_SimdCastType1)
 542         (_GnuTraits::_SimdCastType2, _SimdImplBuiltin)
 543         (_MaskImplBuiltin::_S_store): Add constexpr.
 544         (_CommonImplBuiltin::_S_store_bool_array)
 545         (_SimdImplBuiltin::_S_load, _SimdImplBuiltin::_S_store)
 546         (_SimdImplBuiltin::_S_reduce, _MaskImplBuiltin::_S_load): Add
 547         constant_evaluated case.
 548         * include/experimental/bits/simd_fixed_size.h
 549         (_S_masked_load): Reword comment.
 550         (__tuple_element_meta, __make_meta, _SimdTuple::_M_apply_r)
 551         (_SimdTuple::_M_subscript_read, _SimdTuple::_M_subscript_write)
 552         (__make_simd_tuple, __optimize_simd_tuple, __extract_part)
 553         (__autocvt_to_simd, _Fixed::__traits::_SimdBase)
 554         (_Fixed::__traits::_SimdCastType, _SimdImplFixedSize): Add
 555         constexpr.
 556         (_SimdTuple::operator[], _M_set): Add constexpr and add
 557         constant_evaluated case.
 558         (_MaskImplFixedSize::_S_load): Add constant_evaluated case.
 559         * include/experimental/bits/simd_scalar.h: Add constexpr.
 560         * include/experimental/bits/simd_x86.h (_CommonImplX86): Add
 561         constexpr and add constant_evaluated case.
 562         (_SimdImplX86::_S_equal_to, _S_not_equal_to, _S_less)
 563         (_S_less_equal): Value-initialize to satisfy constexpr
 564         evaluation.
 565         (_MaskImplX86::_S_load): Add constant_evaluated case.
 566         (_MaskImplX86::_S_store): Add constexpr and constant_evaluated
 567         case. Value-initialize local variables.
 568         (_MaskImplX86::_S_logical_and, _S_logical_or, _S_bit_not)
 569         (_S_bit_and, _S_bit_or, _S_bit_xor): Add constant_evaluated
 570         case.
 571         * testsuite/experimental/simd/pr109261_constexpr_simd.cc: New
 572         test.
 573
 574 2023-05-22  Matthias Kretz  <m.kretz@gsi.de>
 575
 576         * include/experimental/bits/simd_builtin.h (_S_fpclassify): Move
 577         __infn into #ifdef'ed block.
 578         * testsuite/experimental/simd/tests/fpclassify.cc: Declare
 579         constants only when used.
 580         * testsuite/experimental/simd/tests/frexp.cc: Likewise.
 581         * testsuite/experimental/simd/tests/logarithm.cc: Likewise.
 582         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc:
 583         Likewise.
 584         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
 585         Move totest and expect1 into #ifdef'ed block.
 586
 587 2023-05-19  Gerald Pfeifer  <gerald@pfeifer.com>
 588
 589         * doc/xml/manual/strings.xml: Move lafstern.org reference to https.
 590         * doc/html/manual/strings.html: Regenerate.
 591
 592 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 593
 594         PR libstdc++/109883
 595         * testsuite/26_numerics/headers/cmath/constexpr_std_c++23.cc: New test.
 596
 597 2023-05-17  Jakub Jelinek  <jakub@redhat.com>
 598
 599         PR libstdc++/109883
 600         * include/c_global/cmath (atan2, fmod, pow): Move
 601         __gnu_cxx::__promote_2 using templates after _Float{16,32,64,128} and
 602         __gnu_cxx::__bfloat16_t overloads.
 603         (copysign, fdim, fmax, fmin, hypot, nextafter, remainder, remquo):
 604         Likewise.
 605         (fma): Move __gnu_cxx::__promote_3 using template after
 606         _Float{16,32,64,128} and __gnu_cxx::__bfloat16_t overloads.
 607
 608 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 609
 610         * testsuite/18_support/headers/limits/synopsis.cc: Uncomment
 611         checks for float_round_style and float_denorm_style.
 612
 613 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 614
 615         * include/bits/c++config: Add system_header pragma.
 616
 617 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 618
 619         * include/std/expected (expected::and_then, expected::or_else)
 620         (expected::transform, expected::transform_error): Fix exception
 621         specifications as per LWG 3877.
 622         (expected<void, E>::and_then, expected<void, E>::transform):
 623         Likewise.
 624         * testsuite/20_util/expected/lwg3877.cc: New test.
 625
 626 2023-05-17  Ken Matsui  <kmatsui@cs.washington.edu>
 627
 628         * include/std/type_traits: Use __bool_constant instead of
 629         integral_constant.
 630
 631 2023-05-17  Jonathan Wakely  <jwakely@redhat.com>
 632
 633         * configure: Regenerate.
 634
 635 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 636
 637         PR libstdc++/109741
 638         * acinclude.m4 (GLIBCXX_CHECK_ALIGNAS_CACHELINE): Define.
 639         * config.h.in: Regenerate.
 640         * configure: Regenerate.
 641         * configure.ac: Use GLIBCXX_CHECK_ALIGNAS_CACHELINE.
 642         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex): Do not
 643         align lock table if not supported. use __GCC_DESTRUCTIVE_SIZE
 644         instead of hardcoded 64.
 645
 646 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 647
 648         * acinclude.m4 (GLIBCXX_USE_C99): Check for isblank in C++11
 649         mode and define _GLIBCXX_USE_C99_CTYPE. Check for <fenv.h>
 650         functions in C++11 mode and define _GLIBCXX_USE_C99_FENV.
 651         * config.h.in: Regenerate.
 652         * configure: Regenerate.
 653         * include/c_compatibility/fenv.h: Check _GLIBCXX_USE_C99_FENV
 654         instead of _GLIBCXX_USE_C99_FENV_TR1.
 655         * include/c_global/cfenv: Likewise.
 656         * include/c_global/cctype: Check _GLIBCXX_USE_C99_CTYPE instead
 657         of _GLIBCXX_USE_C99_CTYPE_TR1.
 658
 659 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 660
 661         * acinclude.m4 (GLIBCXX_USE_C99): Check for <stdint.h> types in
 662         C++11 mode and define _GLIBCXX_USE_C99_STDINT. Check for
 663         <inttypes.h> features in C++11 mode and define
 664         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T.
 665         * config.h.in: Regenerate.
 666         * configure: Regenerate.
 667         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
 668         * include/bits/chrono.h: Check _GLIBCXX_USE_C99_STDINT instead
 669         of _GLIBCXX_USE_C99_STDINT_TR1.
 670         * include/c_compatibility/inttypes.h: Check
 671         _GLIBCXX_USE_C99_INTTYPES and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T
 672         instead of _GLIBCXX_USE_C99_INTTYPES_TR1 and
 673         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 674         * include/c_compatibility/stdatomic.h: Check
 675         _GLIBCXX_USE_C99_STDINT instead of _GLIBCXX_USE_C99_STDINT_TR1.
 676         * include/c_compatibility/stdint.h: Likewise.
 677         * include/c_global/cinttypes: Check _GLIBCXX_USE_C99_INTTYPES
 678         and _GLIBCXX_USE_C99_INTTYPES_WCHAR_T instead of
 679         _GLIBCXX_USE_C99_INTTYPES_TR1 and
 680         _GLIBCXX_USE_C99_INTTYPES_WCHAR_T_TR1.
 681         * include/c_global/cstdint: Check _GLIBCXX_USE_C99_STDINT
 682         instead of _GLIBCXX_USE_C99_STDINT_TR1.
 683         * include/std/atomic: Likewise.
 684         * src/c++11/cow-stdexcept.cc: Likewise.
 685         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc:
 686         Likewise.
 687         * testsuite/lib/libstdc++.exp (check_v3_target_cstdint):
 688         Likewise.
 689
 690 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 691
 692         * acinclude.m4 (GLIBCXX_USE_C99): Check for complex inverse trig
 693         functions in C++11 mode and define _GLIBCXX_USE_C99_COMPLEX_ARC.
 694         * config.h.in: Regenerate.
 695         * configure: Regenerate.
 696         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macro.
 697         * include/std/complex: Check _GLIBCXX_USE_C99_COMPLEX_ARC
 698         instead of _GLIBCXX_USE_C99_COMPLEX_TR1.
 699
 700 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 701
 702         * testsuite/ext/debug_allocator/check_deallocate_null.cc: Add
 703         assertion to ensure expected exception is throw.
 704
 705 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 706
 707         * testsuite/libstdc++-prettyprinters/chrono.cc: Only test
 708         printer for chrono::zoned_time for cx11 ABI and tzdb effective
 709         target.
 710
 711 2023-05-16  Jonathan Wakely  <jwakely@redhat.com>
 712
 713         * acinclude.m4 (GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK): Define
 714         _GLIBCXX_USE_PTHREAD_MUTEX_CLOCKLOCK in terms of _GLIBCXX_TSAN.
 715         * configure: Regenerate.
 716
 717 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 718
 719         * acinclude.m4 (GLIBCXX_CHECK_C99_TR1): Use a non-null pointer
 720         to check for nan, nanf, and nanl.
 721         * configure: Regenerate.
 722
 723 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 724
 725         * include/bits/char_traits.h (char_traits<char16_t>): Do not
 726         depend on _GLIBCXX_USE_C99_STDINT_TR1.
 727         (char_traits<char32_t>): Likewise.
 728         * include/experimental/source_location: Likewise.
 729
 730 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 731
 732         * include/std/atomic (atomic_int_least8_t, atomic_uint_least8_t)
 733         (atomic_int_least16_t, atomic_uint_least16_t)
 734         (atomic_int_least32_t, atomic_uint_least32_t)
 735         (atomic_int_least64_t, atomic_uint_least64_t)
 736         (atomic_int_fast16_t, atomic_uint_fast16_t)
 737         (atomic_int_fast32_t, atomic_uint_fast32_t)
 738         (atomic_int_fast64_t, atomic_uint_fast64_t)
 739         (atomic_intmax_t, atomic_uintmax_t): Define unconditionally.
 740         * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Adjust.
 741
 742 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 743
 744         * include/bits/algorithmfwd.h (shuffle): Do not depend on
 745         _GLIBCXX_USE_C99_STDINT_TR1.
 746         * include/bits/ranges_algo.h (shuffle): Likewise.
 747         * include/bits/stl_algo.h (shuffle): Likewise.
 748         * include/ext/random: Likewise.
 749         * include/ext/throw_allocator.h (random_condition): Likewise.
 750         * include/std/random: Likewise.
 751         * src/c++11/cow-string-inst.cc: Likewise.
 752         * src/c++11/random.cc: Likewise.
 753
 754 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 755
 756         * testsuite/experimental/feat-cxx14.cc: Remove dependency on
 757         _GLIBCXX_USE_C99_STDINT_TR1.
 758
 759 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 760
 761         * testsuite/22_locale/locale/cons/unicode.cc: Remove dependency
 762         on _GLIBCXX_USE_C99_STDINT_TR1.
 763
 764 2023-05-12  Jonathan Wakely  <jwakely@redhat.com>
 765
 766         * testsuite/21_strings/basic_string_view/typedefs.cc: Remove
 767         dependency on _GLIBCXX_USE_C99_STDINT_TR1.
 768         * testsuite/experimental/string_view/typedefs.cc: Likewise.
 769
 770 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 771
 772         * src/c++17/floating_from_chars.cc [USE_STRTOD_FOR_FROM_CHARS]
 773         (auto_locale, auto_ferounding): New class types.
 774         (from_chars_impl): Use auto_locale and auto_ferounding.
 775
 776 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 777
 778         PR libstdc++/109772
 779         * include/std/chrono (hh_mm_ss::__fits): Remove variable
 780         template.
 781         (hh_mm_ss::__subseconds): Remove __fits from constraints.
 782         * testsuite/std/time/hh_mm_ss/109772.cc: New test.
 783         * testsuite/std/time/hh_mm_ss/1.cc: Adjust expected size for
 784         hh_mm_ss<duration<int, std::pico>>.
 785
 786 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 787
 788         * config/abi/pre/gnu.ver: Export basic_string::_S_allocate.
 789         * include/bits/basic_ios.h: Add static assertion checking
 790         traits_type::value_type.
 791         * include/bits/basic_string.h: Likewise. Do not rebind
 792         allocator, and add static assertion checking its value_type.
 793         (basic_string::_Alloc_traits_impl): Remove class template.
 794         (basic_string::_S_allocate): New static member function.
 795         (basic_string::assign): Use _S_allocate.
 796         * include/bits/basic_string.tcc (basic_string::_M_create)
 797         (basic_string::reserve, basic_string::_M_replace): Likewise.
 798         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/debug.cc:
 799         Disable for C++20 and later.
 800         * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc:
 801         Likweise.
 802
 803 2023-05-11  Jonathan Wakely  <jwakely@redhat.com>
 804
 805         PR libstdc++/109758
 806         * include/bits/std_abs.h (abs(__float128)): Handle negative NaN
 807         and negative zero correctly.
 808         * testsuite/26_numerics/headers/cmath/109758.cc: New test.
 809
 810 2023-05-10  François Dumont  <fdumont@gcc.gnu.org>
 811
 812         * include/bits/hashtable_policy.h
 813         (_NodeBuilder<>::_S_build): Use __node_ptr.
 814         (_ReuseOrAllocNode<>): Use __node_ptr in place of __node_type*.
 815         (_AllocNode<>): Likewise.
 816         (_Equality<>::_M_equal): Remove const_iterator usages. Only preserved
 817         to call std::is_permutation in the non-unique key implementation.
 818         * include/bits/hashtable.h (_Hashtable<>::_M_update_begin()): Capture
 819         _M_begin() once.
 820         (_Hashtable<>::_M_bucket_begin(size_type)): Implement implicitly inline.
 821         (_Hashtable<>::_M_insert_bucket_begin): Likewise.
 822         (_Hashtable<>::_M_remove_bucket_begin): Likewise.
 823         (_Hashtable<>::_M_compute_hash_code): Use __node_ptr rather than
 824         const_iterator.
 825         (_Hashtable<>::find): Likewise.
 826         (_Hashtable<>::_M_emplace): Likewise.
 827         (_Hashtable<>::_M_insert_unique): Likewise.
 828
 829 2023-05-09  Jonathan Wakely  <jwakely@redhat.com>
 830
 831         * python/libstdcxx/v6/printers.py (StdChronoDurationPrinter):
 832         Print floating-point durations correctly.
 833         (StdChronoTimePointPrinter): Support printing only the value,
 834         not the type name. Uncomment handling for known clocks.
 835         (StdChronoZonedTimePrinter): Remove type names from output.
 836         (StdChronoCalendarPrinter): Fix hh_mm_ss member access.
 837         (StdChronoTimeZonePrinter): Add equals sign to output.
 838         * testsuite/libstdc++-prettyprinters/chrono.cc: New test.
 839
 840 2023-05-05  Alexandre Oliva  <oliva@adacore.com>
 841
 842         * testsuite/20_util/from_chars/4.cc: Skip long double test06
 843         on aarch64-vxworks.
 844         * testsuite/20_util/to_chars/long_double.cc: Xfail run on
 845         aarch64-vxworks.
 846
 847 2023-05-04  Jonathan Wakely  <jwakely@redhat.com>
 848
 849         * doc/xml/manual/abi.xml (abi.versioning.history): Document
 850         libstdc++.so.6.0.32 and GLIBCXX_3.4.32 version.
 851         * doc/html/manual/abi.html: Regenerate.
 852
 853 2023-05-04  Florian Weimer  <fweimer@redhat.com>
 854
 855         * doc/xml/manual/abi.xml (abi.versioning.history): Add
 856         GCC_7.0.0, GCC_9.0.0, GCC_11.0, GCC_12.0.0, GCC_13.0.0 for
 857         libgcc_s.
 858
 859 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
 860
 861         * src/c++17/floating_from_chars.cc
 862         (_ZSt10from_charsPKcS0_RDF128_St12chars_format): New alias to
 863         _ZSt10from_charsPKcS0_Ru9__ieee128St12chars_format.
 864         * src/c++17/floating_to_chars.cc (_ZSt8to_charsPcS_DF128_): New alias to
 865         _ZSt8to_charsPcS_u9__ieee128.
 866         (_ZSt8to_charsPcS_DF128_St12chars_format): New alias to
 867         _ZSt8to_charsPcS_u9__ieee128St12chars_format.
 868         (_ZSt8to_charsPcS_DF128_St12chars_formati): New alias to
 869         _ZSt8to_charsPcS_u9__ieee128St12chars_formati.
 870         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: Updated.
 871
 872 2023-05-03  Jakub Jelinek  <jakub@redhat.com>
 873
 874         * configure.host (abi_baseline_pair): Use powerpc64le-linux-gnu
 875         rather than powerpc64-linux-gnu for powerpc64le*-linux*.
 876         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Remove
 877         _ZTI*DF128_, _ZTI*DF64x symbols and symbols in
 878         GLIBCXX_IEEE128_3.4.{29,30,31} and CXXABI_IEEE128_1.3.13 symbol
 879         versions.
 880         * config/abi/post/powerpc64le-linux-gnu/baseline_symbols.txt: New
 881         file.
 882
 883 2023-05-03  Kefu Chai  <kefu.chai@scylladb.com>
 884             Jonathan Wakely  <jwakely@redhat.com>
 885
 886         PR libstdc++/109703
 887         * include/bits/basic_string.h (basic_string(Iter, Iter, Alloc)):
 888         Initialize _M_string_length.
 889
 890 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
 891
 892         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
 893         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
 894         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
 895         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
 896         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
 897         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
 898         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
 899         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
 900
 901 2023-05-02  Jakub Jelinek  <jakub@redhat.com>
 902
 903         PR libstdc++/109694
 904         * src/c++98/ios_init.cc: Add #pragma GCC diagnostic ignored for
 905         -Wattribute-alias.
 906
 907 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 908
 909         * include/bits/random.h (gamma_distribution): Add to the right
 910         doxygen group.
 911         (discrete_distribution, piecewise_constant_distribution)
 912         (piecewise_linear_distribution): Create a new doxygen group and
 913         fix the incomplete doxygen comments.
 914         * include/bits/uniform_int_dist.h (uniform_int_distribution):
 915         Add to doxygen group.
 916
 917 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 918
 919         * include/bits/uses_allocator.h: Add missing @file comment.
 920         * include/bits/regex.tcc: Remove stray doxygen comments.
 921         * include/experimental/memory_resource: Likewise.
 922         * include/std/bit: Tweak doxygen @cond comments.
 923         * include/std/expected: Likewise.
 924         * include/std/numbers: Likewise.
 925
 926 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 927
 928         * doc/doxygen/user.cfg.in (STRIP_FROM_PATH): Remove prefixes
 929         from header paths.
 930
 931 2023-04-28  Jonathan Wakely  <jwakely@redhat.com>
 932
 933         * include/bits/move.h: Simplify opening/closing namespace std.
 934
 935 2023-04-28  Jakub Jelinek  <jakub@redhat.com>
 936
 937         PR libstdc++/108969
 938         * config/abi/pre/gnu.ver (GLIBCXX_3.4.32): Export
 939         _ZSt21ios_base_library_initv.
 940         * testsuite/util/testsuite_abi.cc (check_version): Add GLIBCXX_3.4.32
 941         symver and make it the latestp.
 942         * src/c++98/ios_init.cc (ios_base_library_init): New alias.
 943         * acinclude.m4 (libtool_VERSION): Change to 6:32:0.
 944         * include/std/iostream: If init_priority attribute is supported
 945         and _GLIBCXX_SYMVER_GNU, force undefined _ZSt21ios_base_library_initv
 946         symbol into the object.
 947         * configure: Regenerated.
 948
 949 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 950
 951         * include/bits/mofunc_impl.h: Fix typo in doxygen comment.
 952         * include/std/format: Likewise.
 953
 954 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 955
 956         * doc/doxygen/user.cfg.in (FORMULA_TRANSPARENT, DOT_FONTNAME)
 957         (DOT_FONTSIZE, DOT_TRANSPARENT): Remove obsolete options.
 958
 959 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 960
 961         * doc/doxygen/user.cfg.in (SOURCE_BROWSER): Only set to YES for
 962         HTML docs.
 963         * include/bits/gslice_array.h (_DEFINE_VALARRAY_OPERATOR): Omit
 964         from doxygen docs.
 965         * include/bits/indirect_array.h (_DEFINE_VALARRAY_OPERATOR):
 966         Likewise.
 967         * include/bits/mask_array.h (_DEFINE_VALARRAY_OPERATOR):
 968         Likewise.
 969         * include/bits/slice_array.h (_DEFINE_VALARRAY_OPERATOR):
 970         Likewise.
 971         * include/std/valarray (_DEFINE_VALARRAY_UNARY_OPERATOR)
 972         (_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT)
 973         (_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT)
 974         (_DEFINE_BINARY_OPERATOR): Likewise.
 975
 976 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 977
 978         * include/bits/memory_resource.h: Improve doxygen comments.
 979         * include/std/memory_resource: Likewise.
 980
 981 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
 982
 983         PR libstdc++/40380
 984         * include/bits/basic_string.h: Improve doxygen comments.
 985         * include/bits/cow_string.h: Likewise.
 986         * include/bits/forward_list.h: Likewise.
 987         * include/bits/fs_dir.h: Likewise.
 988         * include/bits/fs_path.h: Likewise.
 989         * include/bits/quoted_string.h: Likewise.
 990         * include/bits/stl_bvector.h: Likewise.
 991         * include/bits/stl_map.h: Likewise.
 992         * include/bits/stl_multimap.h: Likewise.
 993         * include/bits/stl_multiset.h: Likewise.
 994         * include/bits/stl_set.h: Likewise.
 995         * include/bits/stl_vector.h: Likewise.
 996         * include/bits/unordered_map.h: Likewise.
 997         * include/bits/unordered_set.h: Likewise.
 998         * include/std/filesystem: Likewise.
 999         * include/std/iomanip: Likewise.
1000
1001 2023-04-27  Jonathan Wakely  <jwakely@redhat.com>
1002
1003         PR libstdc++/105081
1004         * src/c++11/random.cc (__throw_syserr): New function.
1005         (random_device::_M_init, random_device::_M_init_pretr1): Use new
1006         function for bad tokens.
1007         (random_device::_M_getval): Use new function for read errors.
1008         * testsuite/util/testsuite_random.h (random_device_available):
1009         Change catch handler to use std::system_error.
1010
1011 2023-04-24  Patrick Palka  <ppalka@redhat.com>
1012
1013         * include/bits/max_size_type.h (__max_diff_type::operator>>=):
1014         Fix propagation of sign bit.
1015         * testsuite/std/ranges/iota/max_size_type.cc: Avoid using the
1016         non-standard 'signed typedef-name'.  Add some compile-time tests
1017         for right-shifting a negative __max_diff_type value by more than
1018         one.
1019
1020 2023-04-19  Patrick Palka  <ppalka@redhat.com>
1021             Jonathan Wakely  <jwakely@redhat.com>
1022
1023         PR c++/100157
1024         * include/bits/utility.h (_Nth_type): Conditionally define in
1025         terms of __type_pack_element if available.
1026         * testsuite/20_util/tuple/element_access/get_neg.cc: Prune
1027         additional errors from the new built-in.
1028
1029 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1030
1031         Revert:
1032         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1033
1034         PR libstdc++/108969
1035         * src/Makefile.am: Move globals_io.cc to here.
1036         * src/Makefile.in: Regenerate.
1037         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1038         * src/c++98/Makefile.in: Regenerate.
1039         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1040         symbol name and then export with GLIBCXX_3.4.31 symver.
1041         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1042         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1043         Regenerate.
1044         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1045         Regenerate.
1046         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1047         Regenerate.
1048         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1049         Regenerate.
1050         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1051         Regenerate.
1052         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1053         Regenerate.
1054         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1055         Regenerate.
1056         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1057         Regenerate.
1058         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1059
1060 2023-04-19  Jonathan Wakely  <jwakely@redhat.com>
1061
1062         Revert:
1063         2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1064
1065         PR libstdc++/108969
1066         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1067
1068 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1069
1070         * doc/xml/manual/extensions.xml: Fix example to declare and
1071         qualify std::free, and use NULL instead of 0.
1072         * doc/html/manual/ext_demangling.html: Regenerate.
1073         * libsupc++/cxxabi.h: Adjust doxygen comments.
1074
1075 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1076
1077         PR libstdc++/108969
1078         * config/abi/pre/gnu.ver: Fix preprocessor condition.
1079
1080 2023-04-18  Jonathan Wakely  <jwakely@redhat.com>
1081
1082         PR libstdc++/108969
1083         * src/Makefile.am: Move globals_io.cc to here.
1084         * src/Makefile.in: Regenerate.
1085         * src/c++98/Makefile.am: Remove globals_io.cc from here.
1086         * src/c++98/Makefile.in: Regenerate.
1087         * src/c++98/globals_io.cc [_GLIBCXX_SYMVER_GNU] (cin): Adjust
1088         symbol name and then export with GLIBCXX_3.4.31 symver.
1089         (cout, cerr, clog, wcin, wcout, wcerr, wclog): Likewise.
1090         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt:
1091         Regenerate.
1092         * config/abi/post/i486-linux-gnu/baseline_symbols.txt:
1093         Regenerate.
1094         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt:
1095         Regenerate.
1096         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt:
1097         Regenerate.
1098         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt:
1099         Regenerate.
1100         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt:
1101         Regenerate.
1102         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt:
1103         Regenerate.
1104         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt:
1105         Regenerate.
1106         * config/abi/pre/gnu.ver: Add iostream objects to new symver.
1107
1108 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1109
1110         PR libstdc++/108827
1111         * include/bits/ranges_cmp.h (__cpp_lib_ranges): Bump value
1112         for C++23.
1113         * include/std/ranges (range_adaptor_closure): Define for C++23.
1114         * include/std/version (__cpp_lib_ranges): Bump value for
1115         C++23.
1116         * testsuite/std/ranges/version_c++23.cc: Bump expected value
1117         of __cpp_lib_ranges.
1118         * testsuite/std/ranges/range_adaptor_closure.cc: New test.
1119
1120 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1121
1122         * include/bits/ranges_algo.h (__cpp_lib_ranges_contains):
1123         Define for C++23.
1124         (__cpp_lib_ranges_iota): Likewise.
1125         (__cpp_lib_ranges_find_last): Likewise.
1126         (__cpp_lib_fold): Rename to ...
1127         (__cpp_lib_ranges_fold): ... this.
1128         * include/std/version: As above.
1129         * testsuite/25_algorithms/fold_left/1.cc: Adjust after
1130         renaming __cpp_lib_fold.
1131         * testsuite/std/ranges/version_c++23.cc: Verify values
1132         of the above feature-test macros.
1133
1134 2023-04-18  Patrick Palka  <ppalka@redhat.com>
1135
1136         PR libstdc++/109525
1137         * include/std/ranges (views::_AsConst::operator()): Add
1138         missing const to constant_range test.
1139         * testsuite/std/ranges/adaptors/as_const/1.cc (test02):
1140         Improve formatting.  Adjust expected type of v2.
1141         (test03): New test.
1142
1143 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1144
1145         * include/bits/ranges_base.h (const_iterator_t): Define for C++23.
1146         (const_sentinel_t): Likewise.
1147         (range_const_reference_t): Likewise.
1148         (constant_range): Likewise.
1149         (__cust_access::__possibly_const_range): Likewise, replacing ...
1150         (__cust_access::__as_const): ... this.
1151         (__cust_access::_CBegin::operator()): Redefine for C++23 as per P2278R4.
1152         (__cust_access::_CEnd::operator()): Likewise.
1153         (__cust_access::_CRBegin::operator()): Likewise.
1154         (__cust_access::_CREnd::operator()): Likewise.
1155         (__cust_access::_CData::operator()): Likewise.
1156         * include/bits/ranges_util.h (ranges::__detail::__different_from):
1157         Make it an alias of std::__detail::__different_from.
1158         (view_interface::cbegin): Define for C++23.
1159         (view_interface::cend): Likewise.
1160         * include/bits/stl_iterator.h (__detail::__different_from): Define.
1161         (iter_const_reference_t): Define for C++23.
1162         (__detail::__constant_iterator): Likewise.
1163         (__detail::__is_const_iterator): Likewise.
1164         (__detail::__not_a_const_iterator): Likewise.
1165         (__detail::__iter_const_rvalue_reference_t): Likewise.
1166         (__detail::__basic_const_iter_cat):: Likewise.
1167         (const_iterator): Likewise.
1168         (__detail::__const_sentinel): Likewise.
1169         (const_sentinel): Likewise.
1170         (basic_const_iterator): Likewise.
1171         (common_type<basic_const_iterator<_Tp>, _Up>): Likewise.
1172         (common_type<_Up, basic_const_iterator<_Tp>>): Likewise.
1173         (common_type<basic_const_iterator<_Tp>, basic_const_iterator<Up>>):
1174         Likewise.
1175         (make_const_iterator): Define for C++23.
1176         (make_const_sentinel): Likewise.
1177         * include/std/ranges (__cpp_lib_ranges_as_const): Likewise.
1178         (as_const_view): Likewise.
1179         (enable_borrowed_range<as_const_view>): Likewise.
1180         (views::__detail::__is_ref_view): Likewise.
1181         (views::__detail::__can_is_const_view): Likewise.
1182         (views::_AsConst, views::as_const): Likewise.
1183         * include/std/span (span::const_iterator): Likewise.
1184         (span::const_reverse_iterator): Likewise.
1185         (span::cbegin): Likewise.
1186         (span::cend): Likewise.
1187         (span::crbegin): Likewise.
1188         (span::crend): Likewise.
1189         * include/std/version (__cpp_lib_ranges_as_const): Likewise.
1190         * testsuite/std/ranges/adaptors/join.cc (test06): Adjust to
1191         behave independently of C++20 vs C++23.
1192         * testsuite/std/ranges/version_c++23.cc: Verify value of
1193         __cpp_lib_ranges_as_const macro.
1194         * testsuite/24_iterators/const_iterator/1.cc: New test.
1195         * testsuite/std/ranges/adaptors/as_const/1.cc: New test.
1196
1197 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1198
1199         * include/bits/ranges_base.h (__cust_access::__as_const)
1200         (__cust_access::_CBegin, __cust::cbegin)
1201         (__cust_access::_CEnd, __cust::cend)
1202         (__cust_access::_CRBegin, __cust::crbegin)
1203         (__cust_access::_CREnd, __cust::crend)
1204         (__cust_access::_CData, __cust::cdata): Move down definitions to
1205         shortly after the definition of input_range.
1206
1207 2023-04-14  Patrick Palka  <ppalka@redhat.com>
1208
1209         * include/bits/ranges_algo.h: Include <optional> for C++23.
1210         (__cpp_lib_fold): Define for C++23.
1211         (in_value_result): Likewise.
1212         (__detail::__flipped): Likewise.
1213         (__detail::__indirectly_binary_left_foldable_impl): Likewise.
1214         (__detail::__indirectly_binary_left_foldable): Likewise.
1215         (___detail:__indirectly_binary_right_foldable): Likewise.
1216         (fold_left_with_iter_result): Likewise.
1217         (__fold_left_with_iter_fn, fold_left_with_iter): Likewise.
1218         (__fold_left_fn, fold_left): Likewise.
1219         (__fold_left_first_with_iter_fn, fold_left_first_with_iter):
1220         Likewise.
1221         (__fold_left_first_fn, fold_left_first): Likewise.
1222         (__fold_right_fn, fold_right): Likewise.
1223         (__fold_right_last_fn, fold_right_last): Likewise.
1224         * include/std/version (__cpp_lib_fold): Likewise.
1225         * testsuite/25_algorithms/fold_left/1.cc: New test.
1226         * testsuite/25_algorithms/fold_right/1.cc: New test.
1227
1228 2023-04-14  Jonathan Wakely  <jwakely@redhat.com>
1229
1230         * include/std/format (formatter): Add comment to deleted default
1231         constructor of primary template.
1232         (_Checking_scanner): Add static_assert.
1233
1234 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1235
1236         * doc/xml/manual/using.xml: Document libstdc++exp.a library.
1237         * doc/html/*: Regenerate.
1238
1239 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1240
1241         * testsuite/17_intro/names.cc [_AIX]: Do not define policy.
1242         * testsuite/19_diagnostics/error_code/cons/lwg3629.cc: Rename
1243         namespace to avoid clashing with libc struct.
1244         * testsuite/19_diagnostics/error_condition/cons/lwg3629.cc:
1245         Likewise.
1246         * testsuite/23_containers/unordered_map/96088.cc: Skip on AIX.
1247         * testsuite/23_containers/unordered_multimap/96088.cc: Likewise.
1248         * testsuite/23_containers/unordered_multiset/96088.cc: Likewise.
1249         * testsuite/23_containers/unordered_set/96088.cc: Likewise.
1250         * testsuite/experimental/synchronized_value.cc: Require gthreads
1251         and add missing option for pthreads targets.
1252
1253 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1254
1255         * include/std/ranges (__cpp_lib_ranges_enumerate): Define
1256         for C++23.
1257         (__detail::__range_with_movable_reference): Likewise.
1258         (enumerate_view): Likewise.
1259         (enumerate_view::_Iterator): Likewise.
1260         (enumerate_view::_Sentinel): Likewise.
1261         (views::__detail::__can_enumerate_view): Likewise.
1262         (views::_Enumerate, views::enumerate): Likewise.
1263         * include/std/version (__cpp_lib_ranges_enumerate): Likewise.
1264         * testsuite/std/ranges/version_c++23.cc: Verify value of
1265         __cpp_lib_ranges_enumerate.
1266         * testsuite/std/ranges/adaptors/enumerate/1.cc: New test.
1267
1268 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1269
1270         * include/std/ranges (lazy_split_view::_OuterIter::_OuterIter):
1271         Propagate _M_trailing_empty in the const-converting constructor
1272         as per LWG 3904.
1273         * testsuite/std/ranges/adaptors/adjacent/1.cc (test04): Correct
1274         assertion.
1275         * testsuite/std/ranges/adaptors/lazy_split.cc (test12): New test.
1276
1277 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1278
1279         * src/c++17/floating_from_chars.cc: Include <algorithm>,
1280         <iterator>, <limits> and <cstdint>.
1281
1282 2023-04-12  Patrick Palka  <ppalka@redhat.com>
1283
1284         PR libstdc++/108291
1285         * include/std/ranges (chunk_by_view::_M_find_next): Generalize
1286         parameter types of the lambda wrapper passed to adjacent_find.
1287         (chunk_by_view::_M_find_prev): Likewise.
1288         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test04, test05):
1289         New tests.
1290
1291 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1292
1293         PR libstdc++/109482
1294         * include/experimental/internet (basic_endpoint::basic_endpoint()):
1295         Ensure that the required union members are active. Only define
1296         as constexpr for C++20 and later.
1297         (basic_endpoint::basic_endpoint(const protocol_type&, port_type)):
1298         Likewise.
1299         * testsuite/experimental/net/internet/endpoint/cons.cc: Only
1300         check constexpr default constructor for C++20 and later.
1301         * testsuite/experimental/net/internet/endpoint/extensible.cc:
1302         Likewise.
1303
1304 2023-04-12  Jonathan Wakely  <jwakely@redhat.com>
1305
1306         * src/c++20/tzdata.zi: Import new file from 2023c release.
1307
1308 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1309
1310         * include/precompiled/stdc++.h (C++17): Don't double-include
1311         <charconv>, once with wrong conditions.
1312         * testsuite/18_support/96817.cc: Require hosted.
1313         * testsuite/18_support/bad_exception/59392.cc: Ditto.
1314         * testsuite/20_util/scoped_allocator/108952.cc: Ditto.
1315         * testsuite/20_util/uses_allocator/lwg3527.cc: Ditto.
1316         * testsuite/29_atomics/atomic/operators/pointer_partial_void.cc:
1317         Ditto.
1318
1319 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1320
1321         * include/bits/c++config: When __STDC_HOSTED__ is zero,
1322         disable _GLIBCXX_DEBUG and, if it was set, enable
1323         _GLIBCXX_ASSERTIONS.
1324         * testsuite/lib/libstdc++.exp (check_v3_target_debug_mode):
1325         Include <bits/c++config.h> when determining whether debug is
1326         set, in order to inherit the logic from above
1327
1328 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1329
1330         * testsuite/17_intro/versionconflict.cc: New test.
1331         * include/std/version: Allow disabling the system_header pragma
1332         via _GLIBCXX_TESTING_SYSHDR.
1333
1334 2023-04-05  Arsen Arsenović  <arsen@aarsen.me>
1335
1336         * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory):
1337         Synchronize the definition block with...
1338         * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory):
1339         ... this one here.  Also define the 202202L value, rather than
1340         leaving it up to purely unique_ptr.h, so that the value is
1341         synchronized across all headers.
1342         (__gnu_debug::_Safe_iterator_base): Move into new conditional
1343         block.
1344         * include/std/memory (__cpp_lib_atomic_value_initialization):
1345         Define on freestanding under the same conditions as in
1346         atomic_base.h.
1347         * include/std/version (__cpp_lib_robust_nonmodifying_seq_ops):
1348         Also define on freestanding.
1349         (__cpp_lib_to_chars): Ditto.
1350         (__cpp_lib_gcd): Ditto.
1351         (__cpp_lib_gcd_lcm): Ditto.
1352         (__cpp_lib_raw_memory_algorithms): Ditto.
1353         (__cpp_lib_array_constexpr): Ditto.
1354         (__cpp_lib_nonmember_container_access): Ditto.
1355         (__cpp_lib_clamp): Ditto.
1356         (__cpp_lib_constexpr_char_traits): Ditto.
1357         (__cpp_lib_constexpr_string): Ditto.
1358         (__cpp_lib_sample): Ditto.
1359         (__cpp_lib_lcm): Ditto.
1360         (__cpp_lib_constexpr_iterator): Ditto.
1361         (__cpp_lib_constexpr_char_traits): Ditto.
1362         (__cpp_lib_interpolate): Ditto.
1363         (__cpp_lib_constexpr_utility): Ditto.
1364         (__cpp_lib_shift): Ditto.
1365         (__cpp_lib_ranges): Ditto.
1366         (__cpp_lib_move_iterator_concept): Ditto.
1367         (__cpp_lib_constexpr_numeric): Ditto.
1368         (__cpp_lib_constexpr_functional): Ditto.
1369         (__cpp_lib_constexpr_algorithms): Ditto.
1370         (__cpp_lib_constexpr_tuple): Ditto.
1371         (__cpp_lib_constexpr_memory): Ditto.
1372
1373 2023-04-05  John David Anglin  <danglin@gcc.gnu.org>
1374
1375         * testsuite/22_locale/locale/cons/12658_thread-2.cc: Double
1376         timeout factor on hppa*-*-*.
1377
1378 2023-04-05  Jonathan Wakely  <jwakely@redhat.com>
1379
1380         * include/bits/regex.h (sub_match::swap): New function.
1381         * testsuite/28_regex/sub_match/lwg3204.cc: New test.
1382
1383 2023-04-04  Jonathan Wakely  <jwakely@redhat.com>
1384
1385         * doc/xml/manual/extensions.xml: Remove std::bad_exception from
1386         example program.
1387         * doc/html/manual/ext_demangling.html: Regenerate.
1388
1389 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1390
1391         PR tree-optimization/107087
1392         * include/bits/cow_string.h (basic_string::size()): Add
1393         optimizer hint that _S_empty_rep()._M_length is always zero.
1394         (basic_string::length()): Call size().
1395
1396 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1397
1398         PR libstdc++/109339
1399         * include/std/stop_token (_Stop_state_ptr(const stop_source&)):
1400         Add attribute access with access-mode 'none'.
1401         * testsuite/30_threads/stop_token/stop_source/109339.cc: New test.
1402
1403 2023-03-31  Jonathan Wakely  <jwakely@redhat.com>
1404
1405         * include/experimental/internet (ip::basic_endpoint::_M_if_v6):
1406         Revert change from member function to data member. Fix for
1407         constant evaluation by detecting which union member is active.
1408         (ip::basic_endpoint::resize): Revert changes to update _M_is_v6
1409         flag.
1410
1411 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1412
1413         PR libstdc++/109242
1414         * testsuite/20_util/optional/monadic/pr109340.cc: Moved to...
1415         * testsuite/20_util/optional/monadic/pr109242.cc: ...here.
1416
1417 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1418
1419         * include/experimental/internet (ip::make_address): Implement
1420         missing overload.
1421         (ip::address_v4::broadcast()): Avoid undefined shift.
1422         (ip::basic_endpoint): Fix member functions for constexpr.
1423         (ip::basic_endpoint::_M_is_v6): Replace member function with
1424         data member, adjust member functions using it.
1425         (ip::basic_endpoint::resize): Update _M_is_v6 based on sockaddr
1426         content.
1427         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1428         constexpr checks to work in C++14.
1429         * testsuite/experimental/net/internet/address/v4/creation.cc:
1430         Likewise.
1431         * testsuite/experimental/net/internet/endpoint/cons.cc:
1432         Likewise.
1433         * testsuite/experimental/net/internet/network/v4/cons.cc:
1434         Likewise.
1435         * testsuite/experimental/net/internet/network/v4/members.cc:
1436         Likewise.
1437         * testsuite/experimental/net/internet/endpoint/extensible.cc: New test.
1438
1439 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1440
1441         * include/std/expected (expected::value() &): Use const lvalue
1442         for unex member passed to bad_expected_access constructor, as
1443         per LWG 3843.
1444
1445 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1446
1447         PR libstdc++/109340
1448         * include/std/expected (expected::transform): Use
1449         std::remove_cv_t instead of std::remove_cvref_t.
1450         (expected::transform_error): Likewise.
1451         (expected<cv void, E>::transform): Likewise.
1452         (expected<cv void, E>::transform_error): Likewise.
1453         * include/std/optional (transform): Use std::remove_cv_t.
1454         * testsuite/20_util/optional/monadic/pr109340.cc: New test.
1455
1456 2023-03-29  Jonathan Wakely  <jwakely@redhat.com>
1457
1458         * include/std/optional (optional): Adjust static assertion to
1459         reject arrays and functions as well as references.
1460         * testsuite/20_util/optional/requirements_neg.cc: New test.
1461
1462 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1463
1464         PR libstdc++/103387
1465         * include/bits/istream.tcc (istream::_M_extract(ValueT&)): Use
1466         std::use_facet instead of cached _M_num_get facet.
1467         (istream::operator>>(short&)): Likewise.
1468         (istream::operator>>(int&)): Likewise.
1469         * include/bits/ostream.tcc (ostream::_M_insert(ValueT)): Use
1470         std::use_facet instead of cached _M_num_put facet.
1471
1472 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1473
1474         * include/bits/char_traits.h (char_traits::copy): Return without
1475         using memcpy if n==0.
1476         (char_traits::assign): Likewise for memset.
1477
1478 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1479
1480         PR libstdc++/109299
1481         * include/bits/basic_string.h (basic_string::_M_is_local()): Add
1482         hint for compiler that local strings fit in the local buffer.
1483
1484 2023-03-28  Jonathan Wakely  <jwakely@redhat.com>
1485
1486         PR libstdc++/109288
1487         * include/std/chrono (__detail::__get_leap_second_info): Update
1488         expiry date of hardcoded leapseconds list.
1489         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds()):
1490         Likewise.
1491         * src/c++20/tzdata.zi: Import new file from 2023a release.
1492         * testsuite/std/time/time_zone/get_info_local.cc: Only check
1493         transitions for Egypt up to 2014.
1494
1495 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1496
1497         * include/experimental/bits/simd.h (is_simd_flag_type): New.
1498         (_IsSimdFlagType): New.
1499         (copy_from, copy_to, load ctors): Constrain _Flags using
1500         _IsSimdFlagType.
1501
1502 2023-03-28  Matthias Kretz  <m.kretz@gsi.de>
1503
1504         * include/experimental/bits/simd_x86.h (_SimdImplX86): Use
1505         _Base::_S_divides if the optimized _S_divides function is hidden
1506         via the preprocessor.
1507
1508 2023-03-27  Jakub Jelinek  <jakub@redhat.com>
1509
1510         * testsuite/experimental/net/timer/waitable/dest.cc: Avoid -Wformat
1511         warning if size_t is not unsigned long.
1512
1513 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1514
1515         * include/bits/shared_ptr_atomic.h (atomic::operator=(nullptr_t)):
1516         Add overload, as per LWG 3893.
1517         * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc:
1518         Check assignment from nullptr.
1519
1520 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1521
1522         * include/std/format (formatter<const charT[N], charT>): Do not
1523         define partial speclialization, as per LWG 3833.
1524         * testsuite/std/format/formatter/requirements.cc: Check it.
1525
1526 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1527
1528         * include/std/utility (__cpp_lib_constexpr_algorithms): Define,
1529         as per LWG 3792.
1530         * testsuite/20_util/exchange/constexpr.cc: Check for it.
1531
1532 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1533
1534         * include/std/version (__cpp_lib_format): Define.
1535         * testsuite/std/format/functions/format.cc: Check it.
1536
1537 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1538
1539         * include/bits/basic_string.tcc (basic_string::resize_and_overwrite):
1540         Pass rvalues to the callback, as now allowed by LWG 3645.
1541         Enforce preconditions on the return value.
1542         * testsuite/21_strings/basic_string/capacity/char/resize_and_overwrite.cc:
1543         Adjust.
1544
1545 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1546
1547         * include/std/format: Add a comment noting that the resolution
1548         of LWG 3720 has been applied..
1549
1550 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1551
1552         * include/bits/regex.h (match_results): Add allocator-extended
1553         copy and move constructors, as per LWG 2195.
1554         * testsuite/28_regex/match_results/ctors/char/alloc.cc: New test.
1555
1556 2023-03-22  Jonathan Wakely  <jwakely@redhat.com>
1557
1558         * include/bits/stream_iterator.h (istream_iterator): Add
1559         constexpr to copy constructor, as per LWG 3600.
1560         * testsuite/24_iterators/istream_iterator/cons/constexpr.cc:
1561         Check copy construction.
1562
1563 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1564
1565         * include/experimental/bits/simd_x86.h
1566         (_SimdImplX86::_S_divides): Replace test for __GCC_IEC_559 == 0
1567         with __RECIPROCAL_MATH__.
1568
1569 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1570
1571         * include/experimental/bits/simd_detail.h: Don't define
1572         _GLIBCXX_SIMD_WORKAROUND_PR90993 for Clang.
1573         * include/experimental/bits/simd_x86.h (_S_divides): Remove
1574         check for __clang__.
1575
1576 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1577
1578         * include/experimental/bits/simd_detail.h: Don't declare the
1579         simd API as constexpr with Clang.
1580         * include/experimental/bits/simd_x86.h (__movm): New.
1581         (_S_blend_avx512): Resolve FIXME. Implement blend using __movm
1582         and ?:.
1583         (_SimdImplX86::_S_masked_unary): Clang does not implement the
1584         same builtins. Implement the function using __movm, ?:, and -
1585         operators on vector_size types instead.
1586
1587 2023-03-21  Matthias Kretz  <m.kretz@gsi.de>
1588
1589         * testsuite/experimental/simd/tests/operators.cc: Clang doesn't
1590         define __GCC_IEC_559. Use __STDC_IEC_559__ instead.
1591
1592 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1593
1594         * src/filesystem/ops-common.h (get_temp_directory_from_env): Fix
1595         formatting.
1596
1597 2023-03-20  Marek Polacek  <polacek@redhat.com>
1598
1599         PR c++/109159
1600         * testsuite/20_util/pair/cons/explicit_construct.cc: Adjust dg-error.
1601         * testsuite/20_util/tuple/cons/explicit_construct.cc: Likewise.
1602         * testsuite/23_containers/span/explicit.cc: Likewise.
1603
1604 2023-03-20  Jonathan Wakely  <jwakely@redhat.com>
1605
1606         PR libstdc++/109182
1607         * include/std/expected (expected<void>::expected(in_place_t)):
1608         Remove template-head.
1609
1610 2023-03-18  Jonathan Wakely  <jwakely@redhat.com>
1611
1612         PR libstdc++/109165
1613         * testsuite/18_support/coroutines/hash.cc: Use const object
1614         in second call.
1615
1616 2023-03-17  Jonathan Wakely  <jwakely@redhat.com>
1617
1618         PR libstdc++/109165
1619         * include/std/coroutine (hash<>::operator()): Add const.
1620         * testsuite/18_support/coroutines/hash.cc: New test.
1621
1622 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1623
1624         PR libstdc++/109111
1625         * include/std/ranges (repeat_view): Remove redundant parentheses
1626         in requires-clause.
1627         (repeat_view::_Iterator): Correct the requires-clause.
1628
1629 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1630
1631         * include/bits/stl_iterator.h (move_iterator::_S_iter_concept):
1632         Define.
1633         (__cpp_lib_move_iterator_concept): Define for C++20.
1634         (move_iterator::iterator_concept): Strengthen as per P2520R0.
1635         * include/std/version (__cpp_lib_move_iterator_concept): Define
1636         for C++20.
1637         * testsuite/24_iterators/move_iterator/p2520r0.cc: New test.
1638
1639 2023-03-14  Patrick Palka  <ppalka@redhat.com>
1640
1641         * include/bits/ranges_util.h (view_interface::empty): Add
1642         preferred overloads that use ranges::size when the range is
1643         sized as per LWG 3715.
1644         * testsuite/std/ranges/adaptors/lwg3715.cc: New test.
1645
1646 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1647
1648         * include/bits/chrono.h (__is_duration_v, __is_time_point_v):
1649         Only define for C++17 and later.
1650
1651 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1652
1653         * src/Makefile.am: Add comment about linker script fragments.
1654         * src/Makefile.in: Regenerate.
1655
1656 2023-03-14  Jonathan Wakely  <jwakely@redhat.com>
1657
1658         PR libstdc++/62196
1659         * include/bits/mask_array.h (mask_array): Add assertions to
1660         assignment operators.
1661         * include/std/valarray (valarray::operator[](valarray<bool>)):
1662         Add assertions.
1663         * testsuite/26_numerics/valarray/mask-1_neg.cc: New test.
1664         * testsuite/26_numerics/valarray/mask-2_neg.cc: New test.
1665         * testsuite/26_numerics/valarray/mask-3_neg.cc: New test.
1666         * testsuite/26_numerics/valarray/mask-4_neg.cc: New test.
1667         * testsuite/26_numerics/valarray/mask-5_neg.cc: New test.
1668         * testsuite/26_numerics/valarray/mask-6_neg.cc: New test.
1669         * testsuite/26_numerics/valarray/mask-7_neg.cc: New test.
1670         * testsuite/26_numerics/valarray/mask-8_neg.cc: New test.
1671         * testsuite/26_numerics/valarray/mask.cc: New test.
1672
1673 2023-03-13  Jakub Jelinek  <jakub@redhat.com>
1674
1675         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1676         * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update.
1677
1678 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1679
1680         * doc/Makefile.am: Add comment referring to documentation.
1681         * doc/Makefile.in: Regenerate.
1682
1683 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1684
1685         * doc/html/*: Regenerate.
1686
1687 2023-03-13  Jonny Grant  <jg@jguk.org>
1688
1689         * doc/xml/faq.xml: Update copyright year.
1690
1691 2023-03-13  Jonathan Wakely  <jwakely@redhat.com>
1692
1693         * include/bits/allocator.h: Fix typo in comment.
1694
1695 2023-03-12  Jakub Jelinek  <jakub@redhat.com>
1696
1697         * config/abi/pre/gnu.ver (CXXABI_1.3.14): Also export __bf16 tinfos
1698         if it isn't mangled as DF16b but u6__bf16.
1699
1700 2023-03-12  Gerald Pfeifer  <gerald@pfeifer.com>
1701
1702         * doc/xml/manual/documentation_hacking.xml: Move www.graphviz.org
1703         to https.
1704         * doc/html/manual/documentation_hacking.html: Regenerate.
1705
1706 2023-03-10  Jonathan Wakely  <jwakely@redhat.com>
1707
1708         PR libstdc++/109064
1709         * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker):
1710         Remove self-recursion in __init__. Add missing _supports.
1711         * testsuite/libstdc++-xmethods/shared_ptr.cc: Check use_count()
1712         and unique().
1713
1714 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1715
1716         * include/std/ranges
1717         (cartesian_product_view::_Iterator::_Iterator): Remove
1718         constraint on default constructor as per LWG 3849.
1719         (cartesian_product_view::_Iterator::_M_prev): Adjust position
1720         of _Nm > 0 test as per LWG 3820.
1721         (cartesian_product_view::_Iterator::_M_advance): Perform bounds
1722         checking only on sized cartesian products.
1723         * testsuite/std/ranges/cartesian_product/1.cc (test08): New test.
1724
1725 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1726
1727         PR libstdc++/109024
1728         * include/std/ranges (chunk_by_view::_M_pred): Remove DMI as per
1729         LWG 3796.
1730         (repeat_view::_M_pred): Likewise.
1731         * testsuite/std/ranges/adaptors/chunk_by/1.cc (test03): New test.
1732         * testsuite/std/ranges/repeat/1.cc (test05): New test.
1733
1734 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1735
1736         PR libstdc++/108362
1737         * include/std/ranges (__detail::__can_single_view): New concept.
1738         (_Single::operator()): Constrain it.  Move [[nodiscard]] to the
1739         end of the function declarator.
1740         (__detail::__can_iota_view): New concept.
1741         (_Iota::operator()): Constrain it.  Move [[nodiscard]] to the
1742         end of the function declarator.
1743         (__detail::__can_istream_view): New concept.
1744         (_Istream::operator()): Constrain it.  Move [[nodiscard]] to the
1745         end of the function declarator.
1746         * testsuite/std/ranges/iota/iota_view.cc (test07): New test.
1747         * testsuite/std/ranges/istream_view.cc (test08): New test.
1748         * testsuite/std/ranges/single_view.cc (test07): New test.
1749
1750 2023-03-09  Patrick Palka  <ppalka@redhat.com>
1751
1752         PR libstdc++/107572
1753         * include/std/ranges (cartesian_product_view::end): When
1754         building the tuple of iterators, avoid calling ranges::begin on
1755         the first range if __empty_tail is false.
1756         * testsuite/std/ranges/cartesian_product/1.cc (test07): New test.
1757
1758 2023-03-09  Jonathan Wakely  <jwakely@redhat.com>
1759
1760         PR libstdc++/108882
1761         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Fix incorrect
1762         patterns.
1763
1764 2023-03-07  Jakub Jelinek  <jakub@redhat.com>
1765
1766         * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update.
1767         * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update.
1768         * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update.
1769         * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update.
1770         * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update.
1771
1772 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1773
1774         PR libstdc++/108882
1775         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Adjust patterns to
1776         not match symbols in namespace std::__gnu_cxx11_ieee128.
1777         * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add patterns for
1778         std::__gnu_cxx11_ieee128::money_{get,put}.
1779
1780 2023-03-07  Jonathan Wakely  <jwakely@redhat.com>
1781
1782         * libsupc++/eh_personality.cc: Fix spelling in comment.
1783
1784 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1785
1786         * testsuite/30_threads/async/async.cc (test04): Initialize
1787         steady_start, renamed from steady_begin, next to slow_start.
1788         Increase tolerance for final wait.
1789
1790 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1791
1792         * testsuite/libstdc++-prettyprinters/80276.cc: Add
1793         std::string to debug info.
1794         * testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
1795
1796 2023-03-03  Alexandre Oliva  <oliva@adacore.com>
1797
1798         PR libstdc++/104852
1799         PR libstdc++/95989
1800         PR libstdc++/52590
1801         * include/bits/std_thread.h (thread::_M_thread_deps): New
1802         static implicitly-inline member function.
1803         (std::thread template ctor): Pass it to _M_start_thread.
1804         * src/c++11/thread.cc (thread::_M_start_thread): Name depend
1805         parameter, force it live on entry.
1806
1807 2023-03-03  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
1808
1809         * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate.
1810         * config/abi/post/i386-solaris/amd64/baseline_symbols.txt:
1811         Likewise.
1812         * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise.
1813         * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt:
1814         Likewise.
1815
1816 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
1817
1818         * include/bits/cow_string.h: Fix typo in comment.
1819
1820 2023-03-01  Jonathan Wakely  <jwakely@redhat.com>
1821
1822         * src/c++20/tzdb.cc (chrono::tzdb::current_zone()) Use "UTC" if
1823         current time zone cannot be determined.
1824         * testsuite/std/time/tzdb/1.cc: Remove conditions based on
1825         HAVE_TZDB macro and test all members unconditionally.
1826
1827 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1828
1829         PR libstdc++/108952
1830         * include/bits/uses_allocator_args.h
1831         (uses_allocator_construction_args): Implement LWG 3527.
1832         * testsuite/20_util/pair/astuple/get-2.cc: New test.
1833         * testsuite/20_util/scoped_allocator/108952.cc: New test.
1834         * testsuite/20_util/uses_allocator/lwg3527.cc: New test.
1835
1836 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1837
1838         PR libstdc++/108846
1839         * include/bits/stl_algobase.h (__copy_move<false, false, RA>)
1840         Add __assign_one static member function.
1841         (__copy_move<true, false, RA>): Likewise.
1842         (__copy_move<IsMove, true, RA>): Do not use memmove for a single
1843         value.
1844         (__copy_move_backward<IsMove, true, RA>): Likewise.
1845         * testsuite/25_algorithms/copy/108846.cc: New test.
1846         * testsuite/25_algorithms/copy_backward/108846.cc: New test.
1847         * testsuite/25_algorithms/copy_n/108846.cc: New test.
1848         * testsuite/25_algorithms/move/108846.cc: New test.
1849         * testsuite/25_algorithms/move_backward/108846.cc: New test.
1850
1851 2023-02-28  Jonathan Wakely  <jwakely@redhat.com>
1852
1853         * src/c++11/codecvt.cc: Add [[likely]] and [[unlikely]]
1854         attributes.
1855
1856 2023-02-27  Jonathan Wakely  <jwakely@redhat.com>
1857
1858         * include/bits/basic_ios.h (basic_ios::_M_setstate): Add
1859         caveat to comment.
1860         * include/bits/basic_string.h (resize_and_overwrite): Add
1861         doxygen comment.
1862
1863 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1864
1865         * include/experimental/bits/simd.h: Line breaks and indenting
1866         fixed to follow the libstdc++ standard.
1867         * include/experimental/bits/simd_builtin.h: Likewise.
1868         * include/experimental/bits/simd_fixed_size.h: Likewise.
1869         * include/experimental/bits/simd_neon.h: Likewise.
1870         * include/experimental/bits/simd_ppc.h: Likewise.
1871         * include/experimental/bits/simd_scalar.h: Likewise.
1872         * include/experimental/bits/simd_x86.h: Likewise.
1873
1874 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1875
1876         PR libstdc++/108030
1877         * include/experimental/bits/simd_fixed_size.h
1878         (_SimdImplFixedSize::_S_broadcast): Replace inline with
1879         _GLIBCXX_SIMD_INTRINSIC.
1880         (_SimdImplFixedSize::_S_generate): Likewise.
1881         (_SimdImplFixedSize::_S_load): Likewise.
1882         (_SimdImplFixedSize::_S_masked_load): Likewise.
1883         (_SimdImplFixedSize::_S_store): Likewise.
1884         (_SimdImplFixedSize::_S_masked_store): Likewise.
1885         (_SimdImplFixedSize::_S_min): Likewise.
1886         (_SimdImplFixedSize::_S_max): Likewise.
1887         (_SimdImplFixedSize::_S_complement): Likewise.
1888         (_SimdImplFixedSize::_S_unary_minus): Likewise.
1889         (_SimdImplFixedSize::_S_plus): Likewise.
1890         (_SimdImplFixedSize::_S_minus): Likewise.
1891         (_SimdImplFixedSize::_S_multiplies): Likewise.
1892         (_SimdImplFixedSize::_S_divides): Likewise.
1893         (_SimdImplFixedSize::_S_modulus): Likewise.
1894         (_SimdImplFixedSize::_S_bit_and): Likewise.
1895         (_SimdImplFixedSize::_S_bit_or): Likewise.
1896         (_SimdImplFixedSize::_S_bit_xor): Likewise.
1897         (_SimdImplFixedSize::_S_bit_shift_left): Likewise.
1898         (_SimdImplFixedSize::_S_bit_shift_right): Likewise.
1899         (_SimdImplFixedSize::_S_remquo): Add inline keyword (to be
1900         explicit about not always-inline, yet).
1901         (_SimdImplFixedSize::_S_isinf): Likewise.
1902         (_SimdImplFixedSize::_S_isfinite): Likewise.
1903         (_SimdImplFixedSize::_S_isnan): Likewise.
1904         (_SimdImplFixedSize::_S_isnormal): Likewise.
1905         (_SimdImplFixedSize::_S_signbit): Likewise.
1906
1907 2023-02-24  Matthias Kretz  <m.kretz@gsi.de>
1908
1909         PR libstdc++/108856
1910         * include/experimental/bits/simd_builtin.h
1911         (_SimdImplBuiltin::_S_masked_unary): More efficient
1912         implementation of masked inc-/decrement for integers and floats
1913         without AVX2.
1914         * include/experimental/bits/simd_x86.h
1915         (_SimdImplX86::_S_masked_unary): New. Use AVX512 masked subtract
1916         builtins for masked inc-/decrement.
1917
1918 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1919
1920         * include/experimental/executor (executor): Constrain template
1921         constructors.
1922
1923 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1924
1925         * include/experimental/internet (basic_endpoint): Add missing
1926         constexpr to comparison operators.
1927         * testsuite/experimental/net/internet/endpoint/cons.cc: New test.
1928
1929 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1930
1931         * include/experimental/internet (network_v4::netmask()): Avoid
1932         undefined shift.
1933         (network_v4::broadcast()): Optimize and fix for targets with
1934         uint_least32_t wider than 32 bits.
1935         (network_v4::to_string(const Allocator&)): Fix for custom
1936         allocators and optimize using to_chars.
1937         (operator==(const network_v4&, const network_v4&)): Add missing
1938         constexpr.
1939         (operator==(const network_v6&, const network_v6&)): Likewise.
1940         * testsuite/experimental/net/internet/network/v4/cons.cc: New test.
1941         * testsuite/experimental/net/internet/network/v4/members.cc: New test.
1942
1943 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1944
1945         * include/experimental/internet (address_4(const bytes_type&)):
1946         Use __builtin_bit_cast if available, otherwise convert to
1947         network byte order.
1948         (address_v4::to_bytes()): Likewise, but convert from network
1949         byte order.
1950         * testsuite/experimental/net/internet/address/v4/cons.cc: Fix
1951         incorrect tests. Check for constexpr too.
1952         * testsuite/experimental/net/internet/address/v4/creation.cc:
1953         Likewise.
1954         * testsuite/experimental/net/internet/address/v4/members.cc:
1955         Check that bytes_type is a standard-layout type.
1956
1957 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1958
1959         * include/experimental/internet (address_v4::to_string):
1960         Optimize.
1961         * testsuite/experimental/net/internet/address/v4/members.cc:
1962         Check more addresses.
1963
1964 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1965
1966         * include/ext/aligned_buffer.h (__aligned_buffer): Add
1967         diagnostic pragmas.
1968
1969 2023-02-24  Jonathan Wakely  <jwakely@redhat.com>
1970
1971         * testsuite/std/format/arguments/lwg3810.cc: Move dg-options
1972         before dg-do.
1973
1974 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1975
1976         * testsuite/experimental/simd/tests/reductions.cc: Introduce
1977         max_distance as the type-dependent max error.
1978
1979 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1980
1981         * include/experimental/bits/simd_builtin.h (_S_set): Compare as
1982         int. The actual range of these indexes is very small.
1983
1984 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1985
1986         * include/experimental/bits/simd_x86.h (_S_bit_shift_left)
1987         (_S_bit_shift_right): Declare constexpr. The implementation was
1988         already expecting constexpr evaluation.
1989
1990 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1991
1992         PR libstdc++/108030
1993         * include/experimental/bits/simd_detail.h
1994         (_GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA): Define as empty for
1995         __clang__.
1996
1997 2023-02-23  Matthias Kretz  <m.kretz@gsi.de>
1998
1999         PR libstdc++/108030
2000         * include/experimental/bits/simd.h (__vector_broadcast):
2001         Implement via __vector_broadcast_impl instead of
2002         __call_with_n_evaluations + 2 lambdas.
2003         (__vector_broadcast_impl): New.
2004
2005 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2006
2007         * src/c++11/shared_ptr.cc (__gnu_internal::get_mutex):
2008         Avoid destruction of the mutex pool.
2009
2010 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2011
2012         * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: xfail
2013         on vxworks.
2014         * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc:
2015         Likewise.
2016
2017 2023-02-22  Alexandre Oliva  <oliva@adacore.com>
2018
2019         * testsuite/17_intro/names.cc: Undef func on vxworks >= 7 in
2020         kernel mode.
2021
2022 2023-02-20  Andreas Schwab  <schwab@linux-m68k.org>
2023
2024         * config/abi/post/m68k-linux-gnu/baseline_symbols.txt: Update.
2025
2026 2023-02-20  Matthias Kretz  <m.kretz@gsi.de>
2027
2028         * include/experimental/bits/simd.h (__extract_part, split):
2029         Use reserved name for template parameter.
2030
2031 2023-02-20  Andreas Schwab  <schwab@suse.de>
2032
2033         * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update.
2034
2035 2023-02-18  Gerald Pfeifer  <gerald@pfeifer.com>
2036
2037         * doc/xml/faq.xml: Switch two links to www.open-std.org to https.
2038         * doc/html/faq.html: Regenerate.
2039
2040 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2041
2042         * include/experimental/bits/simd_math.h (__hypot): Bitcasting
2043         between scalars requires the __bit_cast helper function instead
2044         of simd_bit_cast.
2045
2046 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2047
2048         * include/experimental/bits/simd_x86.h
2049         (_SimdImplX86::_S_not_equal_to, _SimdImplX86::_S_less)
2050         (_SimdImplX86::_S_less_equal): Do not call
2051         __builtin_is_constant_evaluated in constexpr-if.
2052
2053 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2054
2055         * testsuite/experimental/simd/tests/bits/verify.h
2056         (verify::verify): Use %zx for size_t in format string.
2057
2058 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2059
2060         * testsuite/experimental/simd/generate_makefile.sh: Generate and
2061         pre-compile pch.h, which includes all headers that do not depend
2062         on command-line macros.
2063         * testsuite/experimental/simd/tests/bits/main.h: New file.
2064         (iterate_abis, main): Moved from verify.h.
2065         * testsuite/experimental/simd/tests/bits/verify.h
2066         (iterate_abis, main): Moved to main.h.
2067         * testsuite/experimental/simd/tests/bits/conversions.h: Add
2068         include guard.
2069         (genHalfBits): Simplify.
2070         * testsuite/experimental/simd/tests/bits/make_vec.h: Add include
2071         guard.
2072         (make_alternating_mask): Moved from mask_loadstore.
2073         * testsuite/experimental/simd/tests/bits/mathreference.h: Add
2074         include guard.
2075         * testsuite/experimental/simd/tests/bits/test_values.h: Ditto.
2076         * testsuite/experimental/simd/tests/mask_loadstore.cc
2077         (make_mask, make_alternating_mask): Removed.
2078         * testsuite/experimental/simd/tests/mask_reductions.cc: Ditto.
2079         * testsuite/experimental/simd/tests/operators.cc (genHalfBits):
2080         Removed.
2081         * testsuite/experimental/simd/tests/abs.cc: Only include
2082         bits/main.h.
2083         Ditto.
2084         * testsuite/experimental/simd/tests/algorithms.cc: Ditto.
2085         * testsuite/experimental/simd/tests/broadcast.cc: Ditto.
2086         * testsuite/experimental/simd/tests/casts.cc: Ditto.
2087         * testsuite/experimental/simd/tests/fpclassify.cc: Ditto.
2088         * testsuite/experimental/simd/tests/frexp.cc: Ditto.
2089         * testsuite/experimental/simd/tests/generator.cc: Ditto.
2090         * testsuite/experimental/simd/tests/hypot3_fma.cc: Ditto.
2091         * testsuite/experimental/simd/tests/integer_operators.cc: Ditto.
2092         * testsuite/experimental/simd/tests/ldexp_scalbn_scalbln_modf.cc:
2093         * testsuite/experimental/simd/tests/loadstore.cc: Ditto.
2094         * testsuite/experimental/simd/tests/logarithm.cc: Ditto.
2095         * testsuite/experimental/simd/tests/mask_broadcast.cc: Ditto.
2096         * testsuite/experimental/simd/tests/mask_conversions.cc: Ditto.
2097         * testsuite/experimental/simd/tests/mask_implicit_cvt.cc: Ditto.
2098         * testsuite/experimental/simd/tests/mask_operator_cvt.cc: Ditto.
2099         * testsuite/experimental/simd/tests/mask_operators.cc: Ditto.
2100         * testsuite/experimental/simd/tests/math_1arg.cc: Ditto.
2101         * testsuite/experimental/simd/tests/math_2arg.cc: Ditto.
2102         * testsuite/experimental/simd/tests/operator_cvt.cc: Ditto.
2103         * testsuite/experimental/simd/tests/reductions.cc: Ditto.
2104         * testsuite/experimental/simd/tests/remqo.cc: Ditto.
2105         * testsuite/experimental/simd/tests/simd.cc: Ditto.
2106         * testsuite/experimental/simd/tests/sincos.cc: Ditto.
2107         * testsuite/experimental/simd/tests/split_concat.cc: Ditto.
2108         * testsuite/experimental/simd/tests/splits.cc: Ditto.
2109         * testsuite/experimental/simd/tests/trigonometric.cc: Ditto.
2110         * testsuite/experimental/simd/tests/trunc_ceil_floor.cc: Ditto.
2111         * testsuite/experimental/simd/tests/where.cc: Ditto.
2112
2113 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2114
2115         * testsuite/experimental/simd/README.md: Document the timeout
2116         and timeout-factor directives. Minor typo fixed.
2117
2118 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2119
2120         PR libstdc++/108030
2121         * include/experimental/bits/simd_detail.h: Define
2122         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2123         * include/experimental/bits/simd.h: Annotate lambdas with
2124         _GLIBCXX_SIMD_ALWAYS_INLINE_LAMBDA.
2125         * include/experimental/bits/simd_builtin.h: Ditto.
2126         * include/experimental/bits/simd_converter.h: Ditto.
2127         * include/experimental/bits/simd_fixed_size.h: Ditto.
2128         * include/experimental/bits/simd_math.h: Ditto.
2129         * include/experimental/bits/simd_neon.h: Ditto.
2130         * include/experimental/bits/simd_x86.h: Ditto.
2131
2132 2023-02-16  Matthias Kretz  <m.kretz@gsi.de>
2133
2134         * include/experimental/bits/simd.h
2135         (_SimdWrapper::_M_is_constprop_none_of)
2136         (_SimdWrapper::_M_is_constprop_all_of): Return false unless the
2137         computed result still satisfies __builtin_constant_p.
2138
2139 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2140
2141         * testsuite/std/format/arguments/lwg3810.cc: Replace UTF-8
2142         ellipsis character.
2143
2144 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2145
2146         * include/Makefile.am: Add new header.
2147         * include/Makefile.in: Regenerate.
2148         * include/experimental/synchronized_value: New file.
2149         * testsuite/experimental/synchronized_value.cc: New test.
2150
2151 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2152
2153         * include/experimental/optional: Fix header name in comment.
2154
2155 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2156
2157         * include/std/format (__format::_Arg_store): New class template.
2158         (basic_format_args): Remove nested type _Store and add deduction
2159         guide from _Arg_store.
2160         (basic_format_arg, make_format_args): Adjust.
2161         * testsuite/std/format/arguments/lwg3810.cc: New test.
2162
2163 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2164
2165         * include/bits/stl_pair.h (pair) [C++20]: Add non-dangling
2166         constraints to constructors and add deleted overloads for the
2167         dangling cases, as per P2255R2.
2168         (pair) [!C++20 && _GLIBCXX_DEBUG]: Add static assertions to
2169         make dangling cases ill-formed.
2170         * testsuite/20_util/pair/dangling_ref.cc: New test.
2171
2172 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2173
2174         * testsuite/17_intro/names_pstl.cc: Require et tbb_backend.
2175
2176 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2177
2178         * include/ext/throw_allocator.h: Use reserved names for
2179         parameters.
2180
2181 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2182
2183         * testsuite/17_intro/names_pstl.cc: Add space after effective
2184         target name.
2185
2186 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2187
2188         * include/pstl/algorithm_fwd.h (__pattern_search_n)
2189         (__brick_unique_copy, __brick_adjacent_find)
2190         (__brick_generate_n, __pattern_generate_n): Use reserved names
2191         for parameters.
2192         * include/pstl/algorithm_impl.h (__brick_unique_copy)
2193         (__pattern_reverse, __brick_generate_n): Likewise.
2194         * include/pstl/execution_impl.h (__prefer_unsequenced_tag)
2195         (__prefer_parallel_tag): Likewise.
2196         * include/pstl/glue_algorithm_impl.h (transform): Likewise.
2197         * include/pstl/glue_numeric_defs.h (adjacent_difference):
2198         Likewise.
2199         * include/pstl/numeric_impl.h (__brick_adjacent_difference):
2200         Likewise.
2201         * include/pstl/parallel_backend_tbb.h (__merge_func): Likewise.
2202         * include/pstl/unseq_backend_simd.h (_Combiner)
2203         (__simd_min_element, __simd_minmax_element): Likewise.
2204         * testsuite/17_intro/names_pstl.cc: New test.
2205
2206 2023-02-16  Jonathan Wakely  <jwakely@redhat.com>
2207
2208         * include/bits/fs_ops.h (create_directory): Use reserved name
2209         for parameter.
2210         * include/bits/ranges_algo.h (__contains_subrange_fn):
2211         Likewise.
2212         * include/bits/regex_automaton.h (_State_base::_M_print):
2213         Likewise.
2214         * include/bits/regex_automaton.tcc(_State_base::_M_print):
2215         Likewise.
2216         * include/bits/regex_scanner.tcc(_Scanner::_M_print): Likewise.
2217         * include/experimental/bits/fs_ops.h (create_directory):
2218         Likewise.
2219         * include/std/mutex (timed_mutex::_M_clocklock): Likewise.
2220         (recursive_timed_mutex:_M_clocklock): Likewise.
2221         * include/std/tuple (basic_common_reference): Likewise.
2222         * libsupc++/cxxabi_init_exception.h
2223         (__cxa_init_primary_exception): Likewise.
2224         * testsuite/17_intro/names.cc: Add checks.
2225
2226 2023-02-14  Gerald Pfeifer  <gerald@pfeifer.com>
2227
2228         * doc/xml/manual/status_cxx2017.xml: Update an open-std.org link
2229         to www.open-std.org and https.
2230         * doc/html/manual/status.html: Regenerate.
2231
2232 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2233
2234         PR libstdc++/103934
2235         * include/std/atomic (atomic_flag_wait): Add.
2236         (atomic_flag_wait_explicit): Add.
2237         (atomic_flag_notify): Add.
2238         (atomic_flag_notify_explicit): Add.
2239         * testsuite/29_atomics/atomic_flag/wait_notify/1.cc:
2240         Add test case to cover missing atomic_flag free functions.
2241
2242 2023-02-14  Thomas W Rodgers  <rodgert@twrodgers.com>
2243
2244         PR libstdc++/103934
2245         * include/std/atomic (atomic_flag_test): Add.
2246         (atomic_flag_test_explicit): Add.
2247         * testsuite/29_atomics/atomic_flag/test/explicit.cc: Add
2248         test case to cover missing atomic_flag free functions.
2249         * testsuite/29_atomics/atomic_flag/test/implicit.cc:
2250         Likewise.
2251
2252 2023-02-13  Gerald Pfeifer  <gerald@pfeifer.com>
2253
2254         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust
2255         "The Component Object Model" reference.
2256         * doc/html/manual/policy_data_structures.html: Regenerate.
2257
2258 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2259
2260         * doc/xml/manual/containers.xml: Tweak a link to N1780
2261         (C++ standard).
2262         * doc/html/manual/associative.html: Regenerate.
2263
2264 2023-02-12  Gerald Pfeifer  <gerald@pfeifer.com>
2265
2266         * doc/xml/manual/ctype.xml: Change www.unix.org to unix.org.
2267         * doc/html/manual/facets.html: Regenerate.
2268
2269 2023-02-11  Gerald Pfeifer  <gerald@pfeifer.com>
2270
2271         * doc/xml/manual/policy_data_structures_biblio.xml: Update
2272         link to "Worst-case efficient priority queues".
2273         * doc/html/manual/policy_data_structures.html: Regenerate.
2274
2275 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2276
2277         * doc/xml/manual/using.xml: Document newly-freestanding
2278         headers and the effect of the -ffreestanding flag.
2279         * doc/xml/manual/status_cxx2023.xml: Document P1642R11 as
2280         completed.
2281         * doc/xml/manual/configure.xml: Document that hosted installs
2282         respect __STDC_HOSTED__.
2283         * doc/xml/manual/test.xml: Document how to run tests in
2284         freestanding mode.
2285         * doc/html/*: Regenerate.
2286
2287 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2288
2289         * include/bits/ranges_algo.h (__find_last_fn): Rename T to _Tp.
2290         (__find_last_if_fn): Likewise.
2291
2292 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2293
2294         * include/std/type_traits: Add diagnostic pragmas around
2295         references to deprecated std::aligned_storage and
2296         std::aligned_union traits.
2297         * testsuite/20_util/aligned_storage/requirements/alias_decl.cc:
2298         Add dg-warning for et c++23.
2299         * testsuite/20_util/aligned_storage/requirements/explicit_instantiation.cc:
2300         Likewise.
2301         * testsuite/20_util/aligned_storage/value.cc: Likewise.
2302         * testsuite/20_util/aligned_union/1.cc: Likewise.
2303         * testsuite/20_util/aligned_union/requirements/alias_decl.cc:
2304         Likewise.
2305
2306 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2307
2308         * doc/doxygen/user.cfg.in (PREDEFINED): Add new macros.
2309         * include/bits/c++config (_GLIBCXX23_DEPRECATED)
2310         (_GLIBCXX23_DEPRECATED_SUGGEST): New macros.
2311         * include/std/type_traits (aligned_storage, aligned_union)
2312         (aligned_storage_t, aligned_union_t): Deprecate for C++23.
2313         * testsuite/20_util/aligned_storage/deprecated-2b.cc: New test.
2314         * testsuite/20_util/aligned_union/deprecated-2b.cc: New test.
2315
2316 2023-02-06  Nathaniel Shead  <nathanieloshead@gmail.com>
2317
2318         * doc/doxygen/user.cfg.in (PREDEFINED): Update macros.
2319         * include/bits/c++config (_GLIBCXX20_DEPRECATED): Make
2320         consistent with other 'deprecated' macros.
2321         * include/std/type_traits (is_pod, is_pod_v): Use
2322         _GLIBCXX20_DEPRECATED_SUGGEST instead.
2323
2324 2023-02-06  Arsen Arsenović  <arsen@aarsen.me>
2325
2326         * Makefile.am [!_GLIBCXX_HOSTED]: Enable src/ subdirectory.
2327         * Makefile.in: Regenerate.
2328         * src/Makefile.am [!_GLIBCXX_HOSTED]: Omit compatibility files.
2329         There's no history to be compatible with.
2330         * src/c++11/Makefile.am [!_GLIBCXX_HOSTED]: Omit hosted-only
2331         source files from the build.
2332         * src/c++17/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2333         * src/c++20/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2334         * src/c++98/Makefile.am [!_GLIBCXX_HOSTED]: Likewise.
2335         * src/Makefile.in: Regenerate.
2336         * src/c++11/Makefile.in: Regenerate.
2337         * src/c++17/Makefile.in: Regenerate.
2338         * src/c++20/Makefile.in: Regenerate.
2339         * src/c++98/Makefile.in: Regenerate.
2340
2341 2023-02-06  Jonathan Wakely  <jwakely@redhat.com>
2342
2343         * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
2344         filesystem, libbacktrace and experimental.
2345         * src/Makefile.in: Regenerate.
2346
2347 2023-02-04  Hans-Peter Nilsson  <hp@axis.com>
2348
2349         PR libstdc++/108672
2350         * include/pstl/unseq_backend_simd.h (__simd_or): Use __INT32_TYPE__
2351         instead of int32_t.
2352
2353 2023-02-04  Gerald Pfeifer  <gerald@pfeifer.com>
2354
2355         * doc/xml/manual/documentation_hacking.xml: Adjust link to pdftex.
2356         * doc/html/manual/documentation_hacking.html: Regenerate.
2357
2358 2023-02-04  François Dumont  <fdumont@gcc.gnu.org>
2359
2360         * include/bits/basic_string.h (operator=(basic_string&&)): Transfer move-to
2361         storage to the move-from instance when allocators are equal.
2362         * testsuite/21_strings/basic_string/allocator/char/move_assign.cc (test04):
2363         New test case.
2364
2365 2023-02-03  Samuel Thibault  <samuel.thibault@gnu.org>
2366
2367         * config/os/gnu-linux/os_defines.h [!__linux__]
2368         (_GLIBCXX_NATIVE_THREAD_ID, _GLIBCXX_GTHREAD_USE_WEAK): Do not define.
2369
2370 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2371
2372         * include/bits/ranges_algo.h (__find_last_fn, find_last):
2373         Define.
2374         (__find_last_if_fn, find_last_if): Define.
2375         (__find_last_if_not_fn, find_last_if_not): Define.
2376         * testsuite/25_algorithms/find_last/1.cc: New test.
2377         * testsuite/25_algorithms/find_last_if/1.cc: New test.
2378         * testsuite/25_algorithms/find_last_if_not/1.cc: New test.
2379
2380 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2381
2382         * include/bits/ranges_algo.h (out_value_result): Define.
2383         (iota_result): Define.
2384         (__iota_fn, iota): Define.
2385         * testsuite/25_algorithms/iota/1.cc: New test.
2386
2387 2023-02-03  Patrick Palka  <ppalka@redhat.com>
2388
2389         * include/bits/ranges_algo.h (__contains_fn, contains): Define.
2390         (__contains_subrange_fn, contains_subrange): Define.
2391         * testsuite/25_algorithms/contains/1.cc: New test.
2392         * testsuite/25_algorithms/contains_subrange/1.cc: New test.
2393
2394 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2395
2396         * doc/xml/manual/abi.xml: Tweak link to ABIcheck project.
2397         * doc/html/manual/abi.html: Regenerate.
2398
2399 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2400
2401         * src/filesystem/ops-common.h [AVR] (__unsupported): Always use
2402         errc::function_not_supported instead of errc::not_supported.
2403
2404 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2405
2406         * include/std/sstream  (basic_stringbuf::view): Define for old
2407         std::string ABI.
2408         (basic_istringstream::view, basic_0stringstream::view)
2409         (basic_stringstream::view): Likewise.
2410         * testsuite/27_io/basic_istringstream/view/char/1.cc: Remove
2411         { dg-require-effective-target cxx11_abi }.
2412         * testsuite/27_io/basic_istringstream/view/wchar_t/1.cc:
2413         Likewise.
2414         * testsuite/27_io/basic_ostringstream/view/char/1.cc: Likewise.
2415         * testsuite/27_io/basic_ostringstream/view/wchar_t/1.cc:
2416         Likewise.
2417         * testsuite/27_io/basic_stringbuf/view/char/1.cc: Likewise.
2418         * testsuite/27_io/basic_stringbuf/view/wchar_t/1.cc: Likewise.
2419         * testsuite/27_io/basic_stringstream/view/char/1.cc: Likewise.
2420         * testsuite/27_io/basic_stringstream/view/wchar_t/1.cc:
2421         Likewise.
2422
2423 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2424
2425         PR libstdc++/108636
2426         * config/abi/pre/gnu.ver (GLIBCXX_3.4.31): Export shared_ptr
2427         conversion operators for directory iterator comparisons with
2428         std::default_sentinel_t.
2429         * include/bits/fs_path.h (path::path(string_view, _Type))
2430         (path::_Cmpt::_Cmpt(string_view, _Type, size_t)): Move inline
2431         definitions to ...
2432         * src/c++17/fs_path.cc: ... here.
2433         * testsuite/27_io/filesystem/path/108636.cc: New test.
2434
2435 2023-02-02  Jonathan Wakely  <jwakely@redhat.com>
2436
2437         * include/std/variant (variant::operator=): Implement resolution
2438         of LWG 3585.
2439         * testsuite/20_util/variant/lwg3585.cc: New test.
2440
2441 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2442
2443         * doc/xml/manual/using_exceptions.xml: Update a www.open-std.org
2444         link to https.
2445         * doc/html/manual/using_exceptions.html: Regenerate.
2446
2447 2023-02-02  Gerald Pfeifer  <gerald@pfeifer.com>
2448
2449         * doc/xml/manual/debug.xml: Fix link to online GDB manual.
2450         * doc/html/manual/debug.html: Regenerate.
2451
2452 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2453
2454         * src/c++11/random.cc (random_device::_M_fini): Do not try to
2455         close the file handle if the target doesn't support the
2456         /dev/random and /dev/urandom files.
2457
2458 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2459
2460         * config/os/generic/error_constants.h (errc::value_too_large)
2461         [__AVR__]: Define.
2462         * src/c++11/system_error.cc
2463         (system_category::default_error_condition) [__AVR__]: Only match
2464         recognize values equal to EDOM, ERANGE, ENOSYS and EINTR.
2465         * src/c++17/fs_ops.cc (fs::current_path) [__AVR__]: Do not check
2466         for ENOENT etc. in switch.
2467         (fs::remove_all) [__AVR__]: Likewise.
2468         * src/filesystem/ops-common.h [__AVR__]: Do not use POSIX open,
2469         close etc.
2470
2471 2023-02-01  Jonathan Wakely  <jwakely@redhat.com>
2472
2473         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR) [avr-*-*, msp430-*-*]: Set
2474         embed_zoneinfo=no
2475         * configure: Regenerate.
2476
2477 2023-02-01  Hans-Peter Nilsson  <hp@axis.com>
2478
2479         PR testsuite/108632
2480         * testsuite/std/time/hh_mm_ss/1.cc (size): Add empty
2481         struct at end of S0.
2482
2483 2023-01-30  Gerald Pfeifer  <gerald@pfeifer.com>
2484
2485         * doc/xml/manual/shared_ptr.xml: Move links from both
2486         http://open-std.org and http://www.open-std.org to
2487         https://www.open-std.org.
2488         * doc/html/manual/memory.html: Regenerate.
2489
2490 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2491
2492         * doc/xml/manual/appendix_contributing.xml: Adjust link to
2493         ISO C++ standard at ANSI.
2494         Move link to www.open-std.org to https.
2495         * doc/html/manual/appendix_contributing.html: Regenerate.
2496
2497 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2498
2499         * doc/xml/manual/documentation_hacking.xml: Move sourceforge.net
2500         links to https.
2501         * doc/html/manual/documentation_hacking.html: Regenerate.
2502
2503 2023-01-28  Gerald Pfeifer  <gerald@pfeifer.com>
2504
2505         * doc/xml/manual/abi.xml: Update www.open-std.org link to https.
2506         * doc/html/manual/abi.html: Regenerate.
2507
2508 2023-01-27  Jakub Jelinek  <jakub@redhat.com>
2509
2510         PR libstdc++/108568
2511         * testsuite/17_intro/names.cc (__unused): For linux or GNU hurd
2512         include features.h if present and then check __GLIBC__ and
2513         __GLIBC_MINOR__ macros for glibc prior to 2.19, instead of testing
2514         __GLIBC_PREREQ which isn't defined yet.
2515
2516 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2517
2518         * src/c++20/tzdb.cc (tzdata_stream): Use constant instead of
2519         string literal.
2520
2521 2023-01-27  Jonathan Wakely  <jwakely@redhat.com>
2522
2523         PR libstdc++/108554
2524         * testsuite/23_containers/map/modifiers/108554.cc: Use dg-bogus.
2525
2526 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2527
2528         * src/c++20/tzdb.cc (operator>>(istream&, ZoneInfo&)): Allow
2529         rules named "+" for compatibility with older tzdata.zi files.
2530
2531 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2532
2533         PR libstdc++/108554
2534         * include/bits/stl_tree.h (_Rb_tree_insert_and_rebalance): Add
2535         nonnull attribute.
2536         (_Rb_tree_rebalance_for_erase): Add nonnull and returns_nonnull
2537         attributes.
2538         * testsuite/23_containers/map/modifiers/108554.cc: New test.
2539
2540 2023-01-26  Jonathan Wakely  <jwakely@redhat.com>
2541
2542         PR libstdc++/108530
2543         * src/c++20/tzdb.cc (current_zone): Look for TIMEZONE or ZONE in
2544         /etc/sysconfig/clock, not DEFAULT_TIMEZONE.
2545
2546 2023-01-26  Gerald Pfeifer  <gerald@pfeifer.com>
2547
2548         * doc/xml/manual/intro.xml: Update links to www.open-std.org to
2549         use https.
2550         * doc/html/manual/bugs.html: Regenerate.
2551
2552 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2553
2554         PR libstdc++/108530
2555         * src/c++20/tzdb.cc (current_zone): Look for DEFAULT_TIMEZONE in
2556         /etc/sysconfig/clock.
2557
2558 2023-01-24  Jonathan Wakely  <jwakely@redhat.com>
2559
2560         PR libstdc++/102301
2561         * include/bits/ranges_base.h: Include <bits/stl_iterator.h> for
2562         std::make_reverse_iterator.
2563         * include/std/tuple: Include <bits/ranges_util.h> for subrange.
2564         (make_from_tuple): Add static assertion from P2255 to diagnose
2565         dangling references.
2566         * testsuite/20_util/tuple/make_from_tuple/dangling_ref.cc: New test.
2567         * testsuite/20_util/tuple/make_from_tuple/tuple_like.cc: New test.
2568
2569 2023-01-23  François Dumont  <fdumont@gcc.gnu.org>
2570
2571         * include/debug/safe_iterator.h (_Safe_iterator<>::_Unchecked): New.
2572         (_Safe_iterator(const _Safe_iterator&, _Unchecked)): New.
2573         (_Safe_iterator::operator++(int)): Use latter.
2574         (_Safe_iterator::operator--(int)): Likewise.
2575         (_Safe_iterator(_Iterator, const _Safe_sequence_base*)): Remove !_M_insular()
2576         check.
2577         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_Unchecked):
2578         New.
2579         (_Safe_local_iterator(const _Safe_local_iterator&, _Unchecked)): New.
2580         (_Safe_local_iterator::operator++(int)): Use latter.
2581         * src/c++11/debug.cc (_S_debug_messages): Add as comment the _Debug_msg_id
2582         entry associated to the array entry.
2583
2584 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2585
2586         * include/bits/fs_path.h (u8path): Add deprecated attribute.
2587         * testsuite/27_io/filesystem/path/construct/90281.cc: Add
2588         -Wno-deprecated-declarations for C++20 and later.
2589         * testsuite/27_io/filesystem/path/factory/u8path-char8_t.cc:
2590         Likewise.
2591         * testsuite/27_io/filesystem/path/factory/u8path.cc: Likewise.
2592         * testsuite/27_io/filesystem/path/native/string.cc: Likewise.
2593         * testsuite/27_io/filesystem/path/factory/u8path-depr.cc: New test.
2594
2595 2023-01-18  Jonathan Wakely  <jwakely@redhat.com>
2596
2597         * include/bits/random.h (random_device) [!_GLIBCXX_USE_DEV_RANDOM]:
2598         Always call _M_fini and _M_getentropy.
2599
2600 2023-01-18  Gerald Pfeifer  <gerald@pfeifer.com>
2601
2602         * doc/xml/manual/policy_data_structures_biblio.xml: Adjust links
2603         to www.open-std.org to use https.
2604         (COM: Component Model Object Technologies): Rename from...
2605         (The Component Object Model): ...to.
2606         * doc/html/manual/policy_data_structures.html: Regenerate.
2607
2608 2023-01-18  Dimitrij Mijoski  <dmjpp@hotmail.com>
2609
2610         * testsuite/22_locale/codecvt/codecvt_unicode.cc: Simplify.
2611         * testsuite/22_locale/codecvt/codecvt_unicode.h: Simplify.
2612         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: Simplify.
2613
2614 2023-01-17  Jonathan Wakely  <jwakely@redhat.com>
2615
2616         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Check $target_os instead
2617         of $host. Fix check for file being present during native build.
2618         * configure: Regenerate.
2619
2620 2023-01-17  Martin Liska  <mliska@suse.cz>
2621
2622         * src/libbacktrace/Makefile.in: Regenerate.
2623
2624 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2625
2626         * src/c++20/tzdb.cc (_GLIBCXX_USE_CXX11_ABI): Define to 1.
2627
2628 2023-01-16  Jonathan Wakely  <jwakely@redhat.com>
2629
2630         PR libstdc++/108413
2631         * include/c_compatibility/stdatomic.h: Change copyright line to
2632         be consistent with other headers contributed under DCO terms.
2633         * include/std/expected: Add full stop to copyright line.
2634         * src/c++20/tzdb.cc: Likewise.
2635
2636 2023-01-15  Gerald Pfeifer  <gerald@pfeifer.com>
2637
2638         * doc/xml/manual/status_cxx2014.xml: Switch www.open-std.org to
2639         https.
2640         * doc/xml/manual/status_cxx2017.xml: Ditto.
2641         * doc/xml/manual/status_cxx2020.xml: Ditto.
2642         * doc/xml/manual/status_cxx2023.xml: Ditto.
2643         * doc/html/manual/status.html: Regenerate.
2644
2645 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2646
2647         * testsuite/std/time/tzdb_list/1.cc: Remove dg-xfail-run-if
2648         and fail gracefully if defining the weak symbol doesn't work.
2649
2650 2023-01-15  François Dumont  <fdumont@gcc.gnu.org>
2651
2652         PR libstdc++/108288
2653         * include/debug/safe_iterator.h (_Safe_iterator<>::operator++(int)): Extend deadlock
2654         fix to other iterator category.
2655         (_Safe_iterator<>::operator--(int)): Likewise.
2656         * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::operator++(int)):
2657         Fix deadlock.
2658         * testsuite/util/debug/unordered_checks.h (invalid_local_iterator_pre_increment): New.
2659         (invalid_local_iterator_post_increment): New.
2660         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_post_increment_neg.cc:
2661         New test.
2662         * testsuite/23_containers/unordered_map/debug/invalid_local_iterator_pre_increment_neg.cc:
2663         New test.
2664
2665 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2666
2667         * testsuite/30_threads/jthread/jthread.cc: Remove -pthread from
2668         dg-options.
2669
2670 2023-01-15  Jonathan Wakely  <jwakely@redhat.com>
2671
2672         * testsuite/std/time/clock/utc/io.cc: Use ctype to widen char.
2673
2674 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2675
2676         * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Add check for
2677         windows.h. Add pecoff as FORMAT_FILE.
2678         * config.h.in: Regenerate.
2679         * configure: Regenerate.
2680         * src/libbacktrace/Makefile.am: Regenerate.
2681         * src/libbacktrace/Makefile.in: Add pecoff.c as FORMAT_FILE.
2682
2683 2023-01-14  Björn Schäpers  <bjoern@hazardy.de>
2684
2685         * include/std/stacktrace (stacktrace_entry::_S_demangle): Use
2686         raw __name if __cxa_demangle could not demangle it.
2687
2688 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2689
2690         PR libstdc++/108409
2691         * src/c++20/tzdb.cc (current_zone()) [_AIX]: Use TZ environment
2692         variable.
2693
2694 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2695
2696         * src/c++20/tzdb.cc (TZDB_DISABLED): Disable all code for
2697         loading tzdb.
2698         * testsuite/std/time/tzdb/leap_seconds.cc: Require tzdb
2699         effective target.
2700         * testsuite/std/time/tzdb_list/1.cc: Likewise.
2701
2702 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2703
2704         * acinclude.m4 (GLIBCXX_ZONEINFO_DIR): Replace the
2705         --with-libstdcxx-zoneinfo-dir configure option with
2706         --with-libstdcxx-zoneinfo with yes/no/static choices as well as
2707         a directory.
2708         * config.h.in: Regenerate.
2709         * configure: Regenerate.
2710         * doc/xml/manual/configure.xml: Document configure option.
2711         * doc/html/manual/configure.html: Regenerate.
2712         * src/c++20/Makefile.am: Generate tzdata.zi.h header.
2713         * src/c++20/Makefile.in: Regenerate.
2714         * src/c++20/tzdb.cc (__gnu_cxx::zoneinfo_dir_override): Return a
2715         null pointer if no directory is configured.
2716         (zoneinfo_dir): Replace with ...
2717         (zoneinfo_file): New function.
2718         (tzdata_stream): New istream class.
2719         (remote_version, reload_tzdb): Use tzdata_stream.
2720         * testsuite/lib/libstdc++.exp (check_effective_target_tzdb):
2721         Check new _GLIBCXX_STATIC_TZDATA macro and ignore presence of
2722         tzdata.zi file in default location.
2723         * src/c++20/tzdata.zi: New file.
2724
2725 2023-01-14  Jonathan Wakely  <jwakely@redhat.com>
2726
2727         * include/bits/chrono_io.h (operator<<): Fix syntax errors.
2728         * testsuite/std/time/month_day/io.cc: New test.
2729         * testsuite/std/time/month_day_last/io.cc: New test.
2730         * testsuite/std/time/month_weekday/io.cc: New test.
2731         * testsuite/std/time/month_weekday_last/io.cc: New test.
2732         * testsuite/std/time/weekday_indexed/io.cc: New test.
2733         * testsuite/std/time/weekday_last/io.cc: New test.
2734         * testsuite/std/time/year_month/io.cc: New test.
2735         * testsuite/std/time/year_month_day_last/io.cc: New test.
2736         * testsuite/std/time/year_month_weekday/io.cc: New test.
2737         * testsuite/std/time/year_month_weekday_last/io.cc: New test.
2738
2739 2023-01-14  François Dumont  <fdumont@gcc.gnu.org>
2740
2741         * include/std/format [_GLIBCXX_INLINE_VERSION](to_chars): Adapt __asm symbol
2742         specifications.
2743         * config/abi/pre/gnu-versioned-namespace.ver: Add to_chars/from_chars symbols
2744         export.
2745
2746 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2747
2748         * include/bits/std_mutex.h: Include <errno.h>.
2749
2750 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2751
2752         * testsuite/20_util/to_chars/version.cc: Mark hosted-only.
2753         * testsuite/20_util/uses_allocator/lwg3677.cc: Ditto.
2754         * testsuite/20_util/weak_ptr/cons/self_move.cc: Ditto.
2755         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Replace usage of
2756         std::make_unique with a freestanding-compatible wrapper around
2757         unique_ptr.
2758         * testsuite/21_strings/basic_string_view/operations/contains/char.cc:
2759         Don't test for presence of __cpp_lib_string_contains on !HOSTED.
2760         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2761         Ditto.
2762         * testsuite/std/ranges/version_c++23.cc: Don't test for presence
2763         of __cpp_lib_ranges in !HOSTED.
2764
2765 2023-01-13  Arsen Arsenović  <arsen@aarsen.me>
2766
2767         * include/Makefile.am: Install bits/char_traits.h,
2768         std/string_view
2769         * include/Makefile.in: Regenerate.
2770         * include/bits/char_traits.h: Gate hosted-only, wchar-only and
2771         mbstate-only bits behind appropriate #ifs.
2772         * include/std/string_view: Gate <iostream> functionality behind
2773         HOSTED.
2774         * include/std/version: Enable __cpp_lib_constexpr_string_view
2775         and __cpp_lib_starts_ends_with in !HOSTED.
2776         * include/std/ranges: Re-enable __is_basic_string_view on
2777         freestanding, include <string_view> directly.
2778         * include/precompiled/stdc++.h: Include <string_view> when
2779         !HOSTED too.
2780         * testsuite/20_util/function_objects/searchers.cc: Skip testing
2781         boyer_moore searchers on freestanding
2782         * testsuite/21_strings/basic_string_view/capacity/1.cc: Guard
2783         <string>-related tests behind __STDC_HOSTED__.
2784         * testsuite/21_strings/basic_string_view/cons/char/1.cc: Ditto.
2785         * testsuite/21_strings/basic_string_view/cons/char/2.cc: Remove
2786         unused <stdexcept> include.
2787         * testsuite/21_strings/basic_string_view/cons/char/3.cc: Remove
2788         unused <vector> include.
2789         * testsuite/21_strings/basic_string_view/cons/char/range.cc:
2790         Guard <string> related testing behind __STDC_HOSTED__.
2791         * testsuite/21_strings/basic_string_view/cons/wchar_t/1.cc:
2792         Guard <stdexcept> related tests behind __STDC_HOSTED__.
2793         * testsuite/21_strings/basic_string_view/element_access/char/1.cc:
2794         Ditto.
2795         * testsuite/21_strings/basic_string_view/element_access/wchar_t/1.cc:
2796         Guard <stdexcept> tests behind __STDC_HOSTED__.
2797         * testsuite/21_strings/basic_string_view/operations/contains/char/2.cc:
2798         Enable test on freestanding, guard <stdexcept> bits behind
2799         __STDC_HOSTED__.
2800         * testsuite/21_strings/basic_string_view/operations/substr/char.cc:
2801         Guard <stdexcept> bits behind __STDC_HOSTED__.
2802         * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc:
2803         Ditto.
2804
2805 2023-01-13  Dimitrij Mijoski  <dmjpp@hotmail.com>
2806
2807         PR libstdc++/86419
2808         * src/c++11/codecvt.cc (read_utf8_code_point): Correctly detect
2809         errors in incomplete multibyte sequences.
2810         (utf16_in): Remove surrogates parameter. Fix conditions for
2811         returning partial.
2812         (utf16_out): Fix condition for returning partial.
2813         (ucs2_in): Do not pass surrogates argument to utf16_in.
2814         * testsuite/22_locale/codecvt/codecvt_unicode.cc: New test.
2815         * testsuite/22_locale/codecvt/codecvt_unicode.h: New header for
2816         tests.
2817         * testsuite/22_locale/codecvt/codecvt_unicode_wchar_t.cc: New
2818         test.
2819
2820 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2821
2822         PR libstdc++/108331
2823         * config/io/c_io_stdio.h (__c_lock): Define as a typedef for
2824         __GTHREAD_LEGACY_MUTEX_T if defined.
2825
2826 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2827
2828         PR libstdc++/108327
2829         * config/os/gnu-linux/ldbl-extra.ver (GLIBCXX_LDBL_3.4.31):
2830         Export __try_use_facet specializations for facets in namespace
2831         __gnu_cxx_ldbl128.
2832         * config/os/gnu-linux/ldbl-ieee128-extra.ver
2833         (GLIBCXX_IEEE128_3.4.31): Likewise for facets in namespace
2834         __gnu_cxx_ieee128.
2835         * testsuite/util/testsuite_abi.cc: Add to lists of known and
2836         latest versions.
2837
2838 2023-01-13  Jonathan Wakely  <jwakely@redhat.com>
2839
2840         * include/bits/std_mutex.h: Remove <system_error> include.
2841         * include/std/condition_variable: Add <bits/error_constants.h>
2842         include.
2843         * include/std/mutex: Likewise.
2844         * include/std/shared_mutex: Likewise.
2845
2846 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2847
2848         PR libstdc++/77691
2849         * include/experimental/memory_resource
2850         (_GLIBCXX_MAX_ALIGN_MATCHES_MALLOC): Define.
2851         (do_allocate, do_deallocate): Check it.
2852         * testsuite/experimental/memory_resource/new_delete_resource.cc:
2853         Relax expected behaviour for 64-bit hppa-hp-hpux11.11.
2854
2855 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2856
2857         * doc/xml/manual/abi.xml: Add latest library versions.
2858         * doc/html/manual/abi.html: Regenerate.
2859
2860 2023-01-12  François Dumont  <fdumont@gcc.gnu.org>
2861
2862         PR libstdc++/107189
2863         * include/bits/stl_tree.h (_Rb_tree<>::_M_insert_range_equal): Remove
2864         unused _Alloc_node instance.
2865
2866 2023-01-12  Jonathan Wakely  <jwakely@redhat.com>
2867
2868         * include/bits/atomic_wait.h (__detail::__platform_wait_t):
2869         Define as unsigned long if always lock-free, and unsigned int
2870         otherwise.
2871
2872 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2873
2874         * src/c++20/tzdb.cc (tzdb_list::_S_init_tzdb): Use __try and
2875         __catch macros for exception handling.
2876
2877 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2878
2879         PR libstdc++/108221
2880         * include/bits/stl_algobase.h (__lg): Replace six overloads with
2881         a single function template for all integer types.
2882         * include/bits/stl_algo.h (__merge_adaptive_resize): Cast
2883         arithmetic results back to _Distance.
2884
2885 2023-01-10  Jonathan Wakely  <jwakely@redhat.com>
2886
2887         PR libstdc++/108221
2888         * include/std/span (span::span()): Un-simplify constraint to
2889         work for size_t of lesser rank than int.
2890
2891 2023-01-07  LIU Hao  <lh_mouse@126.com>
2892
2893         PR middle-end/108300
2894         * src/c++11/system_error.cc: Define `WIN32_LEAN_AND_MEAN` before
2895         <windows.h>.
2896         * src/c++11/thread.cc: Likewise.
2897         * src/c++17/fs_ops.cc: Likewise.
2898         * src/filesystem/ops.cc: Likewise.
2899
2900 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2901
2902         PR libstdc++/108228
2903         * src/c++20/tzdb.cc (zoneinfo_dir): Add diagnostic pragma.
2904
2905 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2906
2907         PR libstdc++/108235
2908         * src/c++20/tzdb.cc (time_zone::_Impl::RulesCounter): New class
2909         template and partial specialization for synchronizing access to
2910         time_zone::_Impl::infos.
2911         (time_zone::_M_get_sys_info, reload_tzdb): Adjust uses of
2912         rules_counter.
2913
2914 2023-01-06  Patrick Palka  <ppalka@redhat.com>
2915
2916         PR libstdc++/108260
2917         * include/bits/utility.h (__cpp_lib_ranges_zip): Define for C++23.
2918         * include/std/ranges (__cpp_lib_ranges_zip): Likewise.
2919         (__cpp_lib_ranges_chunk): Likewise.
2920         (__cpp_lib_ranges_slide): Likewise.
2921         (__cpp_lib_ranges_chunk_by): Likewise.
2922         (__cpp_lib_ranges_join_with): Likewise.
2923         (__cpp_lib_ranges_repeat): Likewise.
2924         (__cpp_lib_ranges_stride): Likewise.
2925         (__cpp_lib_ranges_cartesian_product): Likewise.
2926         (__cpp_lib_ranges_as_rvalue): Likewise.
2927         * include/std/version: Ditto.
2928         * testsuite/20_util/tuple/p2321r2.cc: Verify value of
2929         feature-test macro.
2930         * testsuite/std/ranges/adaptors/as_rvalue/1.cc: Likewise.
2931         * testsuite/std/ranges/adaptors/chunk/1.cc: Likewise.
2932         * testsuite/std/ranges/adaptors/chunk_by/1.cc: Likewise.
2933         * testsuite/std/ranges/adaptors/join_with/1.cc: Likewise.
2934         * testsuite/std/ranges/adaptors/slide/1.cc: Likewise.
2935         * testsuite/std/ranges/adaptors/stride/1.cc: Likewise.
2936         * testsuite/std/ranges/cartesian_product/1.cc: Likewise.
2937         * testsuite/std/ranges/repeat/1.cc: Likewise.
2938         * testsuite/std/ranges/zip/1.cc: Likewise.
2939         * testsuite/std/ranges/version_c++23.cc: New test.
2940
2941 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2942
2943         PR libstdc++/108214
2944         * include/std/bitset (operator>>): Use alloca in the right
2945         scope, not in a constructor.
2946         * testsuite/20_util/bitset/io/input.cc: Check case from PR.
2947
2948 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2949
2950         PR libstdc++/108221
2951         * include/std/format (basic_format_arg) [!__cpp_lib_to_chars]:
2952         Disable visiting floating-point types.
2953
2954 2023-01-06  Jonathan Wakely  <jwakely@redhat.com>
2955
2956         PR libstdc++/108288
2957         * include/debug/safe_iterator.h (_Safe_iterator::operator++(int))
2958         (_Safe_iterator::operator--(int)): Do not hold lock around
2959         construction of return value.
2960
2961 2023-01-05  John David Anglin  <danglin@gcc.gnu.org>
2962
2963         * config/cpu/hppa/atomicity.h (_PA_LDCW_INSN): Define.
2964         (__exchange_and_add): Use _PA_LDCW_INSN.  Use ordered store for
2965         lock release.  Revise loop.
2966         (__atomic_add): Likewise.
2967
2968 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2969
2970         PR libstdc++/108212
2971         * python/libstdcxx/v6/printers.py (_utc_timezone): New global
2972         variable.
2973         (StdChronoTimePointPrinter::to_string): Use it.
2974
2975 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2976
2977         PR libstdc++/108290
2978         * include/std/functional (_Bind_front): Add no_unique_address
2979         attribute to data members.
2980         * testsuite/20_util/function_objects/bind_front/107784.cc: Check
2981         size of call wrappers with empty types for targets and bound
2982         arguments.
2983
2984 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2985
2986         PR libstdc++/108211
2987         * src/c++20/tzdb.cc (chrono::current_zone()): Check for zone
2988         using only last component of the name.
2989
2990 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
2991
2992         PR libstdc++/108228
2993         PR libstdc++/108235
2994         * config/abi/pre/gnu.ver: Move zoneinfo_dir_override export to
2995         the latest symbol version.
2996         * src/c++20/tzdb.cc (USE_ATOMIC_SHARED_PTR): Define to 0 if
2997         atomic<_Node*> is not always lock free.
2998         (USE_ATOMIC_LIST_HEAD): New macro.
2999         [__hpux__] (__gnu_cxx::zoneinfo_dir_override()): Provide
3000         definition of weak symbol.
3001         (tzdb_list::_Node::_S_head): Rename to _S_head_cache.
3002         (tzdb_list::_Node::_S_list_head): New function for accessing
3003         list head efficiently.
3004         (tzdb_list::_Node::_S_cache_list_head): New function for
3005         updating _S_list_head.
3006
3007 2023-01-05  Jonathan Wakely  <jwakely@redhat.com>
3008
3009         PR libstdc++/108265
3010         * include/std/chrono (hh_mm_ss): Do not use chrono::abs if
3011         duration rep is unsigned.
3012         * testsuite/std/time/hh_mm_ss/1.cc: Check unsigned rep.
3013
3014 2023-01-04  Iain Sandoe  <iain@sandoe.co.uk>
3015
3016         PR libstdc++/108228
3017         * config/abi/pre/gnu.ver (GLIBCXX_3.4):
3018         Add __gnu_cxx::zoneinfo_dir_override().
3019
3020 2023-01-04  Jonathan Wakely  <jwakely@redhat.com>
3021
3022         PR libstdc++/108258
3023         * include/std/array (__array_traits<T, 0>::operator T*()): Add
3024         constexpr.
3025         * testsuite/23_containers/array/element_access/constexpr_c++17.cc: Check
3026         std::array<T, 0>::data().
3027
3028 \f
3029 Copyright (C) 2023 Free Software Foundation, Inc.
3030
3031 Copying and distribution of this file, with or without modification,
3032 are permitted in any medium without royalty provided the copyright
3033 notice and this notice are preserved.