libstdc++-v3/ChangeLog

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