libstdc++-v3/ChangeLog

   1 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
   2
   3         * include/bits/shared_ptr_atomic.h: Fix typo in comment.
   4
   5 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
   6
   7         PR libstdc++/100147
   8         * include/bits/gslice.h (operator=): Add comment about lack of
   9         self-assignment check.
  10
  11 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
  12
  13         * include/tr2/type_traits (bases, direct_bases): Use
  14         __has_builtin to check if required built-ins are supported.
  15
  16 2024-02-07  Patrick Palka  <ppalka@redhat.com>
  17
  18         PR testsuite/113710
  19         PR c++/113814
  20         * include/bits/stl_pair.h (tuple_element): Add forward
  21         declaration of the partial specialization for tuple.
  22
  23 2024-02-06  Torbjörn SVENSSON  <torbjorn.svensson@foss.st.com>
  24
  25         * testsuite/lib/libstdc++.exp: Use "nul" for Windows, "/dev/null"
  26         for other environments.
  27
  28 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  29
  30         * include/std/format (__format::_Spec::_M_reserved): Define new
  31         bit-field members to reserve padding bits for future extensions.
  32
  33 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  34
  35         * src/experimental/Makefile.am: Use libstdc++fsconvenience.a
  36         instead of libstdc++fs.a.
  37         * src/experimental/Makefile.in: Regenerate.
  38         * src/filesystem/Makefile.am: Build libstdc++fsconvenience.a as
  39         well.
  40         * src/filesystem/Makefile.in: Regenerate.
  41
  42 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  43
  44         * include/bits/text_encoding-data.h: Regenerate.
  45         * include/bits/unicode-data.h: Regenerate.
  46         * scripts/gen_text_encoding_data.py: Add copyright and license
  47         text to the output.
  48
  49 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  50
  51         PR libstdc++/113335
  52         * include/bits/std_function.h (__function_guide_helper): Add
  53         partial specialization for explicit object member functions, as
  54         per LWG 3617.
  55         * testsuite/20_util/function/cons/deduction_c++23.cc: Check
  56         explicit object member functions.
  57         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
  58         Likewise.
  59
  60 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  61
  62         * testsuite/17_intro/names.cc [_AIX]: Undefine "u".
  63
  64 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  65
  66         * include/experimental/internet (network_v6::network): Define.
  67         (network_v6::hosts): Finish implementing.
  68         (network_v6::to_string): Do not concatenate std::string to
  69         arbitrary std::basic_string specialization.
  70         * testsuite/experimental/net/internet/network/v6/cons.cc: New
  71         test.
  72
  73 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  74
  75         PR libstdc++/90276
  76         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: Fix
  77         comparison function to use less-than instead of equality.
  78
  79 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  80
  81         PR libstdc++/90276
  82         * testsuite/util/pstl/test_utils.h (reverse_invoker): Do not use
  83         perfect forwarding for iterator arguments.
  84
  85 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  86
  87         * include/std/string_view (basic_string_view(R&&)): Remove
  88         constraint that traits_type must be the same, as per LWG 3857.
  89         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc:
  90         Explicit conversion between different specializations should be
  91         allowed.
  92         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc:
  93         Likewise.
  94
  95 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  96
  97         * include/std/syncstream (basic_osyncstream::operator=): Remove
  98         noexcept, as per LWG 3867.
  99
 100 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
 101
 102         * include/std/generator (promise_type::yield_value): Remove
 103         noexcept from fourth overload, as per LWG 3894.
 104
 105 2024-02-01  Patrick Palka  <ppalka@redhat.com>
 106
 107         PR libstdc++/113309
 108         PR libstdc++/109203
 109         * include/bits/ranges_util.h (__detail::__pair_like): Don't
 110         define in C++23 mode.
 111         (__detail::__pair_like_convertible_from): Adjust as per P2165R4.
 112         (__detail::__is_subrange<subrange>): Moved from <ranges>.
 113         (__detail::__is_tuple_like_v<subrange>): Likewise.
 114         * include/bits/stl_iterator.h: Include <bits/utility.h> for
 115         C++23.
 116         (__different_from): Move to <concepts>.
 117         (__iter_key_t): Adjust for C++23 as per P2165R4.
 118         (__iter_val_t): Likewise.
 119         * include/bits/stl_pair.h (pair, array): Forward declare.
 120         (get): Forward declare all overloads relevant to P2165R4
 121         tuple-like constructors.
 122         (__is_tuple_v): Define for C++23.
 123         (__is_tuple_like_v): Define for C++23.
 124         (__tuple_like): Define for C++23 as per P2165R4.
 125         (__pair_like): Define for C++23 as per P2165R4.
 126         (__eligibile_tuple_like): Define for C++23.
 127         (__eligibile_pair_like): Define for C++23.
 128         (pair::_S_constructible_from_pair_like): Define for C++23.
 129         (pair::_S_convertible_from_pair_like): Define for C++23.
 130         (pair::_S_dangles_from_pair_like): Define for C++23.
 131         (pair::pair): Define overloads taking a tuple-like type for
 132         C++23 as per P2165R4.
 133         (pair::_S_assignable_from_tuple_like): Define for C++23.
 134         (pair::_S_const_assignable_from_tuple_like): Define for C++23.
 135         (pair::operator=): Define overloads taking a tuple-like type for
 136         C++23 as per P2165R4.
 137         * include/bits/utility.h (ranges::__detail::__is_subrange):
 138         Moved from <ranges>.
 139         * include/bits/version.def (tuple_like): Define for C++23.
 140         * include/bits/version.h: Regenerate.
 141         * include/std/concepts (__different_from): Moved from
 142         <bits/stl_iterator.h>.
 143         (ranges::__swap::__adl_swap): Clarify which __detail namespace.
 144         * include/std/map (__cpp_lib_tuple_like): Define C++23.
 145         * include/std/ranges (__detail::__is_subrange): Moved to
 146         <bits/utility.h>.
 147         (__detail::__is_subrange<subrange>): Moved to <bits/ranges_util.h>
 148         (__detail::__has_tuple_element): Adjust for C++23 as per P2165R4.
 149         (__detail::__tuple_or_pair): Remove as per P2165R4.  Replace all
 150         uses with plain tuple as per P2165R4.
 151         * include/std/tuple (__cpp_lib_tuple_like): Define for C++23.
 152         (__tuple_like_tag_t): Define for C++23.
 153         (__tuple_cmp): Forward declare for C++23.
 154         (_Tuple_impl::_Tuple_impl): Define overloads taking
 155         __tuple_like_tag_t and a tuple-like type for C++23.
 156         (_Tuple_impl::_M_assign): Likewise.
 157         (tuple::__constructible_from_tuple_like): Define for C++23.
 158         (tuple::__convertible_from_tuple_like): Define for C++23.
 159         (tuple::__dangles_from_tuple_like): Define for C++23.
 160         (tuple::tuple): Define overloads taking a tuple-like type for
 161         C++23 as per P2165R4.
 162         (tuple::__assignable_from_tuple_like): Define for C++23.
 163         (tuple::__const_assignable_from_tuple_like): Define for C++23.
 164         (tuple::operator=): Define overloads taking a tuple-like type
 165         for C++23 as per P2165R4.
 166         (tuple::__tuple_like_common_comparison_category): Define for C++23.
 167         (tuple::operator<=>): Define overload taking a tuple-like type
 168         for C++23 as per P2165R4.
 169         (array, get): Forward declarations moved to <bits/stl_pair.h>.
 170         (tuple_cat): Constrain with __tuple_like for C++23 as per P2165R4.
 171         (apply): Likewise.
 172         (make_from_tuple): Likewise.
 173         (__tuple_like_common_reference): Define for C++23.
 174         (basic_common_reference): Adjust as per P2165R4.
 175         (__tuple_like_common_type): Define for C++23.
 176         (common_type): Adjust as per P2165R4.
 177         * include/std/unordered_map (__cpp_lib_tuple_like): Define for
 178         C++23.
 179         * include/std/utility (__cpp_lib_tuple_like): Define for C++23.
 180         * testsuite/std/ranges/zip/1.cc (test01): Adjust to handle pair
 181         and 2-tuple interchangeably.
 182         (test05): New test.
 183         * testsuite/20_util/pair/p2165r4.cc: New test.
 184         * testsuite/20_util/tuple/p2165r4.cc: New test.
 185
 186 2024-02-01  Patrick Palka  <ppalka@redhat.com>
 187
 188         * include/bits/stl_pair.h (pair::_S_const_assignable): Define,
 189         factored out from ...
 190         (pair::operator=): ... the constraints of the const overloads.
 191
 192 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 193
 194         * include/bits/version.tpl: Do not use def-file-line for each
 195         macro being defined.
 196         * include/bits/version.h: Regenerate.
 197
 198 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 199
 200         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
 201         dg-error pattern.
 202         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
 203         Likewise.
 204         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
 205         Likewise.
 206         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
 207         Likewise.
 208         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
 209         Likewise.
 210         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
 211         Likewise.
 212         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
 213         Likewise.
 214         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
 215         Likewise.
 216         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
 217         Likewise.
 218
 219 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 220
 221         * include/experimental/internet (network_v4::to_string()):
 222         Remove lambda and use of resize_and_overwrite.
 223
 224 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 225
 226         * acinclude.m4 (GLIBCXX_CHECK_TEXT_ENCODING): Use <xlocale.h> if
 227         needed for newlocale.
 228         * configure: Regenerate.
 229         * src/c++26/text_encoding.cc: Use <xlocale.h>.
 230
 231 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 232             Ewan Higgs  <ewan.higgs@gmail.com>
 233
 234         * include/bits/text_encoding-data.h: Regenerate.
 235         * scripts/gen_text_encoding_data.py: Add extra_aliases dict
 236         containing "ASCII".
 237         * testsuite/std/text_encoding/cons.cc: Check "ascii" is known.
 238
 239 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 240
 241         * doc/xml/manual/using.xml: Update tables of supported headers.
 242         * doc/html/*: Regenerate.
 243
 244 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 245
 246         * include/std/bitset (_Base_bitset::_M_do_to_ullong): Avoid
 247         -Wshift-count-overflow warning.
 248
 249 2024-01-30  Jonathan Wakely  <jwakely@redhat.com>
 250
 251         * testsuite/std/time/clock/gps/io.cc: Fix expected result in
 252         assertion and call test_format() from main.
 253
 254 2024-01-29  François Dumont  <fdumont@gcc.gnu.org>
 255
 256         * doc/xml/manual/debug_mode.xml: Link against libstdc++exp.a to use
 257         _GLIBCXX_DEBUG_BACKTRACE macro.
 258
 259 2024-01-24  Huanghui Nie  <nnnjkk@gmail.com>
 260             Théo Papadopoulo   <papadopoulo@gmail.com>
 261
 262         * include/bits/hashtable.h (_Hahstable<>::_M_remove_bucket_begin): Remove
 263         _M_before_begin check and cleanup implementation.
 264
 265 2024-01-22  Jonathan Wakely  <jwakely@redhat.com>
 266
 267         * testsuite/std/time/clock/file/io.cc: Fix expected result in
 268         assertion and call test_format() from main.
 269
 270 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 271
 272         PR libstdc++/113500
 273         * include/bits/chrono_io.h (__formatter_chrono::_M_S): Fix
 274         printing of subseconds with floating-point rep.
 275         (__formatter_chrono::_M_format_to_ostream): Do not write
 276         time_point specializations directly to the ostream.
 277         (formatter<chrono::sys_time<D>, C>::parse): Do not allow an
 278         empty chrono-spec if the type fails to meet the constraints for
 279         writing to an ostream with operator<<.
 280         * testsuite/std/time/clock/file/io.cc: Check formatting
 281         non-integral times with empty chrono-specs.
 282         * testsuite/std/time/clock/gps/io.cc: Likewise.
 283         * testsuite/std/time/clock/utc/io.cc: Likewise.
 284         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
 285
 286 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 287
 288         * include/bits/chrono.h (__file_clock::from_sys)
 289         (__file_clock::to_sys, __file_clock::_S_from_sys)
 290         (__file_clock::_S_to_sys): Use common_type for return type.
 291         * testsuite/std/time/clock/file/members.cc: Check round trip
 292         conversion for time with lower precision that seconds.
 293
 294 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 295
 296         PR libstdc++/113512
 297         * include/std/format (__formatter_fp::format): Fix logic for
 298         alternate forms.
 299         * testsuite/std/format/functions/format.cc: Check buggy cases of
 300         alternate forms with g presentation type.
 301
 302 2024-01-20  Marek Polacek  <polacek@redhat.com>
 303
 304         PR c++/111410
 305         * include/std/ranges: Add #pragma to disable -Wdangling-reference with
 306         std::ranges::views::__adaptor::operator|.
 307
 308 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
 309
 310         * include/std/format (_Spec::_M_parse_fill_and_align): Do not
 311         use CTAD for _Utf32_view.
 312
 313 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
 314
 315         PR libstdc++/108822
 316         * include/std/tuple (__glibcxx_no_dangling_refs) [C++17]: Fix
 317         wrong fold-operator.
 318         * testsuite/20_util/tuple/dangling_ref.cc: Check tuples with one
 319         element and three elements. Check allocator-extended
 320         constructors.
 321
 322 2024-01-19  Patrick Palka  <ppalka@redhat.com>
 323
 324         * include/precompiled/stdc++.h [_GLIBCXX_HOSTED]: Include
 325         <print> and <text_encoding> for C++23 and C++26 respectively.
 326
 327 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 328
 329         * include/bits/stl_pair.h [__cplusplus > 202002L]:
 330         Guard P2321R2 changes with __glibcxx_ranges_zip instead.
 331
 332 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 333
 334         * include/std/tuple [__cplusplus > 202002L]: Guard P2321R2
 335         changes with __cpp_lib_ranges_zip instead.
 336
 337 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 338
 339         PR libstdc++/109536
 340         * include/debug/safe_base.h (_Safe_sequence_base::_M_swap):
 341         Remove _GLIBCXX20_CONSTEXPR from non-inline member function.
 342         * include/debug/safe_iterator.h
 343         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_BEGIN): Define.
 344         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_END): Define.
 345         (_Safe_iterator::operator=): Use them around the code path that
 346         defines a variable of type __gnu_cxx::__scoped_lock.
 347         (_Safe_iterator::operator++): Likewise.
 348         (_Safe_iterator::operator--): Likewise.
 349         (_Safe_iterator::operator+=): Likewise.
 350         (_Safe_iterator::operator-=): Likewise.
 351         * testsuite/23_containers/vector/element_access/constexpr.cc
 352         (test_iterators): Test more iterator operations.
 353         * testsuite/23_containers/vector/bool/element_access/constexpr.cc
 354         (test_iterators): Likewise.
 355         * testsuite/std/ranges/adaptors/all.cc (test08) [_GLIBCXX_DEBUG]:
 356         Remove.
 357
 358 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
 359
 360         * include/bits/unicode.h (__charset_alias_match): Initialize
 361         __var_a and __var_b.
 362
 363 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
 364
 365         PR libstdc++/113450
 366         * testsuite/std/format/functions/format.cc: Use signed char
 367         instead of int8_t.
 368
 369 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
 370
 371         PR libstdc++/113318
 372         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++26 directory.
 373         (GLIBCXX_CHECK_TEXT_ENCODING): Define.
 374         * config.h.in: Regenerate.
 375         * configure: Regenerate.
 376         * configure.ac: Use GLIBCXX_CHECK_TEXT_ENCODING.
 377         * include/Makefile.am: Add new headers.
 378         * include/Makefile.in: Regenerate.
 379         * include/bits/locale_classes.h (locale::encoding): Declare new
 380         member function.
 381         * include/bits/unicode.h (__charset_alias_match): New function.
 382         * include/bits/text_encoding-data.h: New file.
 383         * include/bits/version.def (text_encoding): Define.
 384         * include/bits/version.h: Regenerate.
 385         * include/std/text_encoding: New file.
 386         * src/Makefile.am: Add new subdirectory.
 387         * src/Makefile.in: Regenerate.
 388         * src/c++26/Makefile.am: New file.
 389         * src/c++26/Makefile.in: New file.
 390         * src/c++26/text_encoding.cc: New file.
 391         * src/experimental/Makefile.am: Include c++26 convenience
 392         library.
 393         * src/experimental/Makefile.in: Regenerate.
 394         * python/libstdcxx/v6/printers.py (StdTextEncodingPrinter): New
 395         printer.
 396         * scripts/gen_text_encoding_data.py: New file.
 397         * testsuite/22_locale/locale/encoding.cc: New test.
 398         * testsuite/ext/unicode/charset_alias_match.cc: New test.
 399         * testsuite/std/text_encoding/cons.cc: New test.
 400         * testsuite/std/text_encoding/members.cc: New test.
 401         * testsuite/std/text_encoding/requirements.cc: New test.
 402
 403 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
 404
 405         * include/bits/unicode.h (_Grapheme_cluster_view): Require view.
 406         Do not use CTAD for _Utf32_view.
 407         (__format_width, __truncate): Do not use CTAD.
 408         (enable_borrowed_range<_Utf_view<T, R>>): Define specialization.
 409         (enable_borrowed_range<_Grapheme_cluster_view<R>>): Likewise.
 410
 411 2024-01-17  Patrick Palka  <ppalka@redhat.com>
 412
 413         * include/std/ranges (views::_CartesianProduct::operator()):
 414         Adjust identity case as per P2540R1.
 415         * testsuite/std/ranges/cartesian_product/1.cc (test01):
 416         Adjust expected result of the identity case.
 417
 418 2024-01-15  Patrick Palka  <ppalka@redhat.com>
 419
 420         * include/std/variant (__detail::__variant::_Variadic_union):
 421         Add bool __trivially_destructible template parameter.
 422         (__detail::__variant::_Variadic_union::~_Variadic_union):
 423         Use __trivially_destructible in constraints instead.
 424         (__detail::__variant::_Variant_storage): Pass
 425         __trivially_destructible value to _Variadic_union.
 426
 427 2024-01-15  Patrick Palka  <ppalka@redhat.com>
 428
 429         * include/bits/stl_iterator.h (const_iterator): Define conversion
 430         operators as per P2836R1.
 431         * include/bits/version.def (ranges_as_const): Update value.
 432         * include/bits/version.h: Regenerate.
 433         * testsuite/24_iterators/const_iterator/1.cc (test04): New test.
 434         * testsuite/std/ranges/adaptors/as_const/1.cc: Adjust expected
 435         value of __cpp_lib_ranges_as_const.
 436         * testsuite/std/ranges/version_c++23.cc: Likewise.
 437
 438 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 439
 440         PR libstdc++/108822
 441         * include/std/tuple (__assignable, __is_nothrow_assignable):
 442         Move pre-C++20 definitions adjacent to their use.
 443
 444 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 445
 446         PR testsuite/113366
 447         * include/std/format (basic_format_arg): Use __formattable
 448         variable template instead of __format::__formattable_with
 449         concept.
 450
 451 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 452
 453         * src/c++20/tzdata.zi: Import new file from 2023d release.
 454         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds)
 455         Update expiry date for leap seconds list.
 456
 457 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
 458
 459         PR libstdc++/108822
 460         * include/std/tuple (tuple): Add checks for dangling references.
 461         Reimplement constraints and constant expressions using C++20
 462         features.
 463         * include/std/type_traits [C++20]
 464         (__is_implicitly_default_constructible_v): Define.
 465         (__is_implicitly_default_constructible): Use variable template.
 466         * testsuite/20_util/tuple/dangling_ref.cc: New test.
 467
 468 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 469
 470         PR libstdc++/108827
 471         PR libstdc++/111327
 472         * include/bits/version.def (bind_back): Define.
 473         * include/bits/version.h: Regenerate.
 474         * include/std/functional (_Bind_back): Define for C++23.
 475         (bind_back): Likewise.
 476         * testsuite/20_util/function_objects/bind_back/1.cc: New test
 477         (adapted from corresponding bind_front test).
 478         * testsuite/20_util/function_objects/bind_back/111327.cc: Likewise.
 479
 480 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 481
 482         * include/std/functional (_Bind_front): Remove =default special
 483         member function declarations.
 484         (_Bind_front::operator()): Implement using C++23 deducing this
 485         when available.
 486         * testsuite/20_util/function_objects/bind_front/111327.cc:
 487         Adjust testcase to expect better errors in C++23 mode.
 488
 489 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 490
 491         * include/std/ranges (views::__adaptor::operator|): Perform
 492         perfect forwarding of arguments.
 493         (views::__adaptor::_RangeAdaptor::operator()): Pass dummy
 494         first argument to _Partial.
 495         (views::__adaptor::_Partial::_Partial): Likewise.  Add dummy
 496         first parameter.
 497         (views::__adaptor::_Pipe::_Pipe): Perform perfect forwarding
 498         of arguments.
 499         (to): Pass dummy first argument to _Partial.
 500
 501 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
 502
 503         PR libstdc++/107466
 504         * include/bits/random.tcc (subtract_with_carry_engine::seed):
 505         Implement proposed resolution of LWG 4014.
 506         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
 507         line number.
 508         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/lwg3809.cc:
 509         Check for expected result of 64-bit engine with seed that
 510         doesn't fit in 32-bits.
 511
 512 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 513
 514         PR libstdc++/113320
 515         * include/std/format (__format::_Runtime_format_string): Add
 516         constructor and disable copy operations.
 517         (basic_format_string(_Runtime_format_string)): Add noexcept and
 518         take parameter by value not rvalue reference.
 519         (runtime_format): Add noexcept.
 520         * testsuite/std/format/runtime_format.cc: Check noexcept. Check
 521         that construction is only possible from prvalues, not xvalues.
 522
 523 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 524
 525         PR libstdc++/105505
 526         * include/bits/stl_pair.h (pair::pair(U1&&, U2&&)) [C++23]: Add
 527         default template arguments, as per P1951R1.
 528         * testsuite/20_util/pair/cons/default_tmpl_args.cc: New test.
 529
 530 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 531
 532         * include/std/format (__format::_Arg_store): Fix PR number in
 533         comment. Simplify preprocessor code.
 534
 535 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 536
 537         * doc/xml/manual/evolution.xml: Fix spelling.
 538         * doc/html/manual/api.html: Regenerate.
 539
 540 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 541
 542         * doc/xml/manual/evolution.xml: Document addition of
 543         libstdc++exp.a.
 544         * doc/html/*: Regenerate.
 545
 546 2024-01-11  Marcus Haehnel  <marcus.haehnel@kernkonzept.com>
 547
 548         * libsupc++/eh_unex_handler.cc: Adjust definition type to
 549         declaration.
 550
 551 2024-01-11  Michael Levine  <mlevine55@bloomberg.net>
 552
 553         * include/std/ranges (__glibcxx_want_ranges_iota): Remove
 554         duplicate definition.
 555
 556 2024-01-11  François Dumont  <fdumont@gcc.gnu.org>
 557
 558         PR libstdc++/112477
 559         * src/c++11/debug.cc
 560         (_Safe_iterator_base::_M_attach): Reset _M_version to 0 if attaching to null
 561         sequence.
 562         (_Safe_iterator_base::_M_attach_single): Likewise.
 563         (_Safe_local_iterator_base::_M_attach): Likewise.
 564         (_Safe_local_iterator_base::_M_attach_single): Likewise.
 565         * testsuite/23_containers/map/debug/112477.cc: New test case.
 566
 567 2024-01-11  Patrick Palka  <ppalka@redhat.com>
 568
 569         * include/bits/move.h (__like_t): Define in C++23 mode.
 570         * include/std/ranges (views::__adaptor::Partial::operator()):
 571         Implement using C++23 deducing this when available.
 572         (views::__adaptor::_Pipe::operator()): Likewise.
 573         * testsuite/std/ranges/adaptors/100577.cc: Adjust testcase to
 574         accept new "no match for call" errors issued in C++23 mode.
 575         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
 576
 577 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 578
 579         * python/libstdcxx/v6/printers.py (StdIntegralConstantPrinter):
 580         Add printer for std::integral_constant.
 581         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it.
 582
 583 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 584
 585         PR libstdc++/113258
 586         * libsupc++/new_opa.cc: Prefer to use posix_memalign if
 587         available.
 588
 589 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 590
 591         * src/filesystem/ops-common.h (stat_type): Use using.
 592
 593 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 594
 595         PR libstdc++/113250
 596         * src/c++17/fs_ops.cc (fs::equivalent): Use || instead of &&.
 597         * src/filesystem/ops.cc (fs::equivalent): Likewise.
 598         * testsuite/27_io/filesystem/operations/equivalent.cc: Handle
 599         error codes.
 600         * testsuite/experimental/filesystem/operations/equivalent.cc:
 601         Likewise.
 602
 603 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 604
 605         * include/std/type_traits (is_compound): Do not use __not_.
 606         (is_compound_v): Use is_fundamental_v instead.
 607
 608 2024-01-11  Patrick Palka  <ppalka@redhat.com>
 609
 610         * include/bits/utility.h (_Nth_type): Use
 611         _GLIBCXX_USE_BUILTIN_TRAIT instead of __has_builtin.
 612
 613 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
 614
 615         * include/bits/unicode-data.h: Regenerate.
 616         * include/bits/unicode.h (_Utf_iterator::operator++()): Fix off
 617         by one error.
 618         (__incb_property): Add missing check for values before the
 619         first edge.
 620         (__is_extended_pictographic): Invert return values to fix
 621         copy&pasted logic.
 622         (_Grapheme_cluster_view::_Iterator): Remove second iterator
 623         member and find end of cluster lazily.
 624         * testsuite/ext/unicode/grapheme_view.cc: New test.
 625         * testsuite/ext/unicode/properties.cc: New test.
 626         * testsuite/ext/unicode/view.cc: New test.
 627
 628 2024-01-09  Andreas Schwab  <schwab@linux-m68k.org>
 629
 630         * scripts/extract_symvers.in: Require final colon to only match
 631         .dsynsym in the header of the dynamic symtab.
 632
 633 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
 634
 635         * include/bits/chrono_io.h (__formatter_chrono::_M_F): Simplify
 636         handling of string returned from std::format.
 637         (__formatter_chrono::_M_R_T): Likewise.
 638
 639 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 640
 641         * include/bits/unicode.h (__null_sentinel): Remove.
 642         * testsuite/17_intro/names.cc: Add __null_sentinel.
 643
 644 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 645
 646         * include/std/format (__format::_Runtime_format_string): Define
 647         new class template.
 648         (basic_format_string): Add non-consteval constructor for runtime
 649         format strings.
 650         (runtime_format): Define new function for C++26.
 651         * testsuite/std/format/runtime_format.cc: New test.
 652
 653 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 654
 655         * include/bits/chrono_io.h (__formatter_chrono): Always use
 656         lvalue arguments to make_format_args.
 657         * include/std/format (make_format_args): Change parameter pack
 658         from forwarding references to lvalue references. Remove use of
 659         remove_reference_t which is now unnecessary.
 660         (format_to, formatted_size): Remove incorrect forwarding of
 661         arguments.
 662         * include/std/ostream (print): Remove forwarding of arguments.
 663         * include/std/print (print): Likewise.
 664         * testsuite/20_util/duration/io.cc: Use lvalues as arguments to
 665         make_format_args.
 666         * testsuite/std/format/arguments/args.cc: Likewise.
 667         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
 668         * testsuite/std/format/functions/format.cc: Likewise.
 669         * testsuite/std/format/functions/vformat_to.cc: Likewise.
 670         * testsuite/std/format/string.cc: Likewise.
 671         * testsuite/std/time/day/io.cc: Likewise.
 672         * testsuite/std/time/month/io.cc: Likewise.
 673         * testsuite/std/time/weekday/io.cc: Likewise.
 674         * testsuite/std/time/year/io.cc: Likewise.
 675         * testsuite/std/time/year_month_day/io.cc: Likewise.
 676         * testsuite/std/format/arguments/args_neg.cc: New test.
 677
 678 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 679
 680         * include/Makefile.am: Add new headers.
 681         * include/Makefile.in: Regenerate.
 682         * include/bits/unicode.h: New file.
 683         * include/bits/unicode-data.h: New file.
 684         * include/std/format: Include <bits/unicode.h>.
 685         (__literal_encoding_is_utf8): Move to <bits/unicode.h>.
 686         (_Spec::_M_fill): Change type to char32_t.
 687         (_Spec::_M_parse_fill_and_align): Read a Unicode scalar value
 688         instead of a single character.
 689         (__write_padded): Change __fill_char parameter to char32_t and
 690         encode it into the output.
 691         (__formatter_str::format): Use new __unicode::__field_width and
 692         __unicode::__truncate functions.
 693         * include/std/ostream: Adjust namespace qualification for
 694         __literal_encoding_is_utf8.
 695         * include/std/print: Likewise.
 696         * src/c++23/print.cc: Add [[unlikely]] attribute to error path.
 697         * testsuite/ext/unicode/view.cc: New test.
 698         * testsuite/std/format/functions/format.cc: Add missing examples
 699         from the standard demonstrating alignment with non-ASCII
 700         characters. Add examples checking correct handling of extended
 701         grapheme clusters.
 702
 703 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 704
 705         * include/bits/version.def (format_uchar): Define.
 706         * include/bits/version.h: Regenerate.
 707         * include/std/format (formatter<C, C>::format): Check for
 708         _Pres_c and call _M_format_character directly. Cast C to its
 709         unsigned equivalent for formatting as an integer.
 710         (formatter<char, wchar_t>::format): Likewise.
 711         (basic_format_arg(T&)): Store char arguments as unsigned char
 712         for formatting to a wide string.
 713         * testsuite/std/format/functions/format.cc: Adjust test. Check
 714         formatting of
 715
 716 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 717
 718         PR libstdc++/112997
 719         * libsupc++/unwind-cxx.h (__cxa_call_terminate): Change first
 720         parameter to void*.
 721
 722 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 723
 724         * testsuite/20_util/variant/87619.cc: Remove dg-timeout-factor.
 725
 726 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 727
 728         * include/std/type_traits (is_trivially_destructible_v): Use
 729         built-in directly when concepts are supported.
 730         * testsuite/20_util/is_trivially_destructible/value_v.cc: New
 731         test.
 732
 733 2024-01-06  Gwenole Beauchesne  <gb.devel@gmail.com>
 734
 735         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Use
 736         nonnull arguments to strtoimax() and wcstoimax() functions.
 737
 738 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 739
 740         * src/c++17/fs_path.cc (path::_List::reserve): Limit maximum
 741         size and check for overflows in arithmetic.
 742         (path::operator/=(const path&)): Remove redundant exponential
 743         growth calculation.
 744
 745 2024-01-05  Martin Küttler  <martin.kuettler@kernkonzept.com>
 746
 747         * src/c++17/fs_path.cc (path::_List::reserve): Avoid
 748         floating-point arithmetic.
 749
 750 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 751
 752         PR libstdc++/113241
 753         * include/std/type_traits (is_convertible_v): Guard use of
 754         built-in with preprocessor check.
 755
 756 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 757
 758         PR libstdc++/113200
 759         * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Use
 760         __builtin_constant_p to check for unrelated pointers that cannot
 761         be compared during constant evaluation.
 762         * testsuite/21_strings/char_traits/requirements/113200.cc: New
 763         test.
 764
 765 2024-01-05  Cassio Neri  <cassio.neri@gmail.com>
 766
 767         * include/std/chrono: Fix + and - for months and weekdays.
 768         * testsuite/std/time/month/1.cc: Add constexpr tests against overflow.
 769         * testsuite/std/time/month/2.cc: New test for extreme values.
 770         * testsuite/std/time/weekday/1.cc: Add constexpr tests against overflow.
 771         * testsuite/std/time/weekday/2.cc: New test for extreme values.
 772
 773 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 774
 775         PR libstdc++/113099
 776         * include/bits/locale_classes.tcc (__try_use_facet): Use
 777         if-constexpr for C++11 and up.
 778
 779 2024-01-05  Ken Matsui  <kmatsui@gcc.gnu.org>
 780
 781         * include/std/type_traits: Use _GLIBCXX_USE_BUILTIN_TRAIT.
 782
 783 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
 784
 785         * include/std/generator (_Subyield_state::_M_jump_in): Fix typo
 786         reported by Will Hawkins <hawkinsw@obs.cr>.
 787
 788 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
 789
 790         * include/std/generator (_Stateless_alloc): Rename typename _A
 791         to _All.
 792
 793 2024-01-03  Patrick Palka  <ppalka@redhat.com>
 794
 795         PR testsuite/113175
 796         * testsuite/std/ranges/iota/max_size_type.cc (test02): Reduce
 797         'limit' to 100 from 1000 and adjust 'log2_limit' accordingly.
 798         (test03): Likewise.
 799
 800 \f
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 802
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