libstdc++-v3/ChangeLog

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