libstdc++-v3/ChangeLog

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