libstdc++-v3/ChangeLog

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