libstdc++-v3/ChangeLog

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