libstdc++-v3/ChangeLog

   1 2024-02-09  Ken Matsui  <kmatsui@gcc.gnu.org>
   2
   3         * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_IS_SAME):
   4         Removed.
   5         * include/std/type_traits (is_same): Use
   6         _GLIBCXX_USE_BUILTIN_TRAIT instead of
   7         _GLIBCXX_HAVE_BUILTIN_IS_SAME.
   8         (is_same_v): Likewise.
   9
  10 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
  11
  12         * include/bits/shared_ptr_atomic.h: Fix typo in comment.
  13
  14 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
  15
  16         PR libstdc++/100147
  17         * include/bits/gslice.h (operator=): Add comment about lack of
  18         self-assignment check.
  19
  20 2024-02-08  Jonathan Wakely  <jwakely@redhat.com>
  21
  22         * include/tr2/type_traits (bases, direct_bases): Use
  23         __has_builtin to check if required built-ins are supported.
  24
  25 2024-02-07  Patrick Palka  <ppalka@redhat.com>
  26
  27         PR testsuite/113710
  28         PR c++/113814
  29         * include/bits/stl_pair.h (tuple_element): Add forward
  30         declaration of the partial specialization for tuple.
  31
  32 2024-02-06  Torbjörn SVENSSON  <torbjorn.svensson@foss.st.com>
  33
  34         * testsuite/lib/libstdc++.exp: Use "nul" for Windows, "/dev/null"
  35         for other environments.
  36
  37 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  38
  39         * include/std/format (__format::_Spec::_M_reserved): Define new
  40         bit-field members to reserve padding bits for future extensions.
  41
  42 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  43
  44         * src/experimental/Makefile.am: Use libstdc++fsconvenience.a
  45         instead of libstdc++fs.a.
  46         * src/experimental/Makefile.in: Regenerate.
  47         * src/filesystem/Makefile.am: Build libstdc++fsconvenience.a as
  48         well.
  49         * src/filesystem/Makefile.in: Regenerate.
  50
  51 2024-02-04  Jonathan Wakely  <jwakely@redhat.com>
  52
  53         * include/bits/text_encoding-data.h: Regenerate.
  54         * include/bits/unicode-data.h: Regenerate.
  55         * scripts/gen_text_encoding_data.py: Add copyright and license
  56         text to the output.
  57
  58 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  59
  60         PR libstdc++/113335
  61         * include/bits/std_function.h (__function_guide_helper): Add
  62         partial specialization for explicit object member functions, as
  63         per LWG 3617.
  64         * testsuite/20_util/function/cons/deduction_c++23.cc: Check
  65         explicit object member functions.
  66         * testsuite/30_threads/packaged_task/cons/deduction_c++23.cc:
  67         Likewise.
  68
  69 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  70
  71         * testsuite/17_intro/names.cc [_AIX]: Undefine "u".
  72
  73 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  74
  75         * include/experimental/internet (network_v6::network): Define.
  76         (network_v6::hosts): Finish implementing.
  77         (network_v6::to_string): Do not concatenate std::string to
  78         arbitrary std::basic_string specialization.
  79         * testsuite/experimental/net/internet/network/v6/cons.cc: New
  80         test.
  81
  82 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  83
  84         PR libstdc++/90276
  85         * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: Fix
  86         comparison function to use less-than instead of equality.
  87
  88 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  89
  90         PR libstdc++/90276
  91         * testsuite/util/pstl/test_utils.h (reverse_invoker): Do not use
  92         perfect forwarding for iterator arguments.
  93
  94 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
  95
  96         * include/std/string_view (basic_string_view(R&&)): Remove
  97         constraint that traits_type must be the same, as per LWG 3857.
  98         * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc:
  99         Explicit conversion between different specializations should be
 100         allowed.
 101         * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc:
 102         Likewise.
 103
 104 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
 105
 106         * include/std/syncstream (basic_osyncstream::operator=): Remove
 107         noexcept, as per LWG 3867.
 108
 109 2024-02-02  Jonathan Wakely  <jwakely@redhat.com>
 110
 111         * include/std/generator (promise_type::yield_value): Remove
 112         noexcept from fourth overload, as per LWG 3894.
 113
 114 2024-02-01  Patrick Palka  <ppalka@redhat.com>
 115
 116         PR libstdc++/113309
 117         PR libstdc++/109203
 118         * include/bits/ranges_util.h (__detail::__pair_like): Don't
 119         define in C++23 mode.
 120         (__detail::__pair_like_convertible_from): Adjust as per P2165R4.
 121         (__detail::__is_subrange<subrange>): Moved from <ranges>.
 122         (__detail::__is_tuple_like_v<subrange>): Likewise.
 123         * include/bits/stl_iterator.h: Include <bits/utility.h> for
 124         C++23.
 125         (__different_from): Move to <concepts>.
 126         (__iter_key_t): Adjust for C++23 as per P2165R4.
 127         (__iter_val_t): Likewise.
 128         * include/bits/stl_pair.h (pair, array): Forward declare.
 129         (get): Forward declare all overloads relevant to P2165R4
 130         tuple-like constructors.
 131         (__is_tuple_v): Define for C++23.
 132         (__is_tuple_like_v): Define for C++23.
 133         (__tuple_like): Define for C++23 as per P2165R4.
 134         (__pair_like): Define for C++23 as per P2165R4.
 135         (__eligibile_tuple_like): Define for C++23.
 136         (__eligibile_pair_like): Define for C++23.
 137         (pair::_S_constructible_from_pair_like): Define for C++23.
 138         (pair::_S_convertible_from_pair_like): Define for C++23.
 139         (pair::_S_dangles_from_pair_like): Define for C++23.
 140         (pair::pair): Define overloads taking a tuple-like type for
 141         C++23 as per P2165R4.
 142         (pair::_S_assignable_from_tuple_like): Define for C++23.
 143         (pair::_S_const_assignable_from_tuple_like): Define for C++23.
 144         (pair::operator=): Define overloads taking a tuple-like type for
 145         C++23 as per P2165R4.
 146         * include/bits/utility.h (ranges::__detail::__is_subrange):
 147         Moved from <ranges>.
 148         * include/bits/version.def (tuple_like): Define for C++23.
 149         * include/bits/version.h: Regenerate.
 150         * include/std/concepts (__different_from): Moved from
 151         <bits/stl_iterator.h>.
 152         (ranges::__swap::__adl_swap): Clarify which __detail namespace.
 153         * include/std/map (__cpp_lib_tuple_like): Define C++23.
 154         * include/std/ranges (__detail::__is_subrange): Moved to
 155         <bits/utility.h>.
 156         (__detail::__is_subrange<subrange>): Moved to <bits/ranges_util.h>
 157         (__detail::__has_tuple_element): Adjust for C++23 as per P2165R4.
 158         (__detail::__tuple_or_pair): Remove as per P2165R4.  Replace all
 159         uses with plain tuple as per P2165R4.
 160         * include/std/tuple (__cpp_lib_tuple_like): Define for C++23.
 161         (__tuple_like_tag_t): Define for C++23.
 162         (__tuple_cmp): Forward declare for C++23.
 163         (_Tuple_impl::_Tuple_impl): Define overloads taking
 164         __tuple_like_tag_t and a tuple-like type for C++23.
 165         (_Tuple_impl::_M_assign): Likewise.
 166         (tuple::__constructible_from_tuple_like): Define for C++23.
 167         (tuple::__convertible_from_tuple_like): Define for C++23.
 168         (tuple::__dangles_from_tuple_like): Define for C++23.
 169         (tuple::tuple): Define overloads taking a tuple-like type for
 170         C++23 as per P2165R4.
 171         (tuple::__assignable_from_tuple_like): Define for C++23.
 172         (tuple::__const_assignable_from_tuple_like): Define for C++23.
 173         (tuple::operator=): Define overloads taking a tuple-like type
 174         for C++23 as per P2165R4.
 175         (tuple::__tuple_like_common_comparison_category): Define for C++23.
 176         (tuple::operator<=>): Define overload taking a tuple-like type
 177         for C++23 as per P2165R4.
 178         (array, get): Forward declarations moved to <bits/stl_pair.h>.
 179         (tuple_cat): Constrain with __tuple_like for C++23 as per P2165R4.
 180         (apply): Likewise.
 181         (make_from_tuple): Likewise.
 182         (__tuple_like_common_reference): Define for C++23.
 183         (basic_common_reference): Adjust as per P2165R4.
 184         (__tuple_like_common_type): Define for C++23.
 185         (common_type): Adjust as per P2165R4.
 186         * include/std/unordered_map (__cpp_lib_tuple_like): Define for
 187         C++23.
 188         * include/std/utility (__cpp_lib_tuple_like): Define for C++23.
 189         * testsuite/std/ranges/zip/1.cc (test01): Adjust to handle pair
 190         and 2-tuple interchangeably.
 191         (test05): New test.
 192         * testsuite/20_util/pair/p2165r4.cc: New test.
 193         * testsuite/20_util/tuple/p2165r4.cc: New test.
 194
 195 2024-02-01  Patrick Palka  <ppalka@redhat.com>
 196
 197         * include/bits/stl_pair.h (pair::_S_const_assignable): Define,
 198         factored out from ...
 199         (pair::operator=): ... the constraints of the const overloads.
 200
 201 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 202
 203         * include/bits/version.tpl: Do not use def-file-line for each
 204         macro being defined.
 205         * include/bits/version.h: Regenerate.
 206
 207 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 208
 209         * testsuite/25_algorithms/copy/debug/constexpr_neg.cc: Adjust
 210         dg-error pattern.
 211         * testsuite/25_algorithms/copy_backward/debug/constexpr_neg.cc:
 212         Likewise.
 213         * testsuite/25_algorithms/equal/debug/constexpr_neg.cc:
 214         Likewise.
 215         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_neg.cc:
 216         Likewise.
 217         * testsuite/25_algorithms/lower_bound/debug/constexpr_partitioned_pred_neg.cc:
 218         Likewise.
 219         * testsuite/25_algorithms/lower_bound/debug/constexpr_valid_range_neg.cc:
 220         Likewise.
 221         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_neg.cc:
 222         Likewise.
 223         * testsuite/25_algorithms/upper_bound/debug/constexpr_partitioned_pred_neg.cc:
 224         Likewise.
 225         * testsuite/25_algorithms/upper_bound/debug/constexpr_valid_range_neg.cc:
 226         Likewise.
 227
 228 2024-02-01  Jonathan Wakely  <jwakely@redhat.com>
 229
 230         * include/experimental/internet (network_v4::to_string()):
 231         Remove lambda and use of resize_and_overwrite.
 232
 233 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 234
 235         * acinclude.m4 (GLIBCXX_CHECK_TEXT_ENCODING): Use <xlocale.h> if
 236         needed for newlocale.
 237         * configure: Regenerate.
 238         * src/c++26/text_encoding.cc: Use <xlocale.h>.
 239
 240 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 241             Ewan Higgs  <ewan.higgs@gmail.com>
 242
 243         * include/bits/text_encoding-data.h: Regenerate.
 244         * scripts/gen_text_encoding_data.py: Add extra_aliases dict
 245         containing "ASCII".
 246         * testsuite/std/text_encoding/cons.cc: Check "ascii" is known.
 247
 248 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 249
 250         * doc/xml/manual/using.xml: Update tables of supported headers.
 251         * doc/html/*: Regenerate.
 252
 253 2024-01-31  Jonathan Wakely  <jwakely@redhat.com>
 254
 255         * include/std/bitset (_Base_bitset::_M_do_to_ullong): Avoid
 256         -Wshift-count-overflow warning.
 257
 258 2024-01-30  Jonathan Wakely  <jwakely@redhat.com>
 259
 260         * testsuite/std/time/clock/gps/io.cc: Fix expected result in
 261         assertion and call test_format() from main.
 262
 263 2024-01-29  François Dumont  <fdumont@gcc.gnu.org>
 264
 265         * doc/xml/manual/debug_mode.xml: Link against libstdc++exp.a to use
 266         _GLIBCXX_DEBUG_BACKTRACE macro.
 267
 268 2024-01-24  Huanghui Nie  <nnnjkk@gmail.com>
 269             Théo Papadopoulo   <papadopoulo@gmail.com>
 270
 271         * include/bits/hashtable.h (_Hahstable<>::_M_remove_bucket_begin): Remove
 272         _M_before_begin check and cleanup implementation.
 273
 274 2024-01-22  Jonathan Wakely  <jwakely@redhat.com>
 275
 276         * testsuite/std/time/clock/file/io.cc: Fix expected result in
 277         assertion and call test_format() from main.
 278
 279 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 280
 281         PR libstdc++/113500
 282         * include/bits/chrono_io.h (__formatter_chrono::_M_S): Fix
 283         printing of subseconds with floating-point rep.
 284         (__formatter_chrono::_M_format_to_ostream): Do not write
 285         time_point specializations directly to the ostream.
 286         (formatter<chrono::sys_time<D>, C>::parse): Do not allow an
 287         empty chrono-spec if the type fails to meet the constraints for
 288         writing to an ostream with operator<<.
 289         * testsuite/std/time/clock/file/io.cc: Check formatting
 290         non-integral times with empty chrono-specs.
 291         * testsuite/std/time/clock/gps/io.cc: Likewise.
 292         * testsuite/std/time/clock/utc/io.cc: Likewise.
 293         * testsuite/std/time/hh_mm_ss/io.cc: Likewise.
 294
 295 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 296
 297         * include/bits/chrono.h (__file_clock::from_sys)
 298         (__file_clock::to_sys, __file_clock::_S_from_sys)
 299         (__file_clock::_S_to_sys): Use common_type for return type.
 300         * testsuite/std/time/clock/file/members.cc: Check round trip
 301         conversion for time with lower precision that seconds.
 302
 303 2024-01-21  Jonathan Wakely  <jwakely@redhat.com>
 304
 305         PR libstdc++/113512
 306         * include/std/format (__formatter_fp::format): Fix logic for
 307         alternate forms.
 308         * testsuite/std/format/functions/format.cc: Check buggy cases of
 309         alternate forms with g presentation type.
 310
 311 2024-01-20  Marek Polacek  <polacek@redhat.com>
 312
 313         PR c++/111410
 314         * include/std/ranges: Add #pragma to disable -Wdangling-reference with
 315         std::ranges::views::__adaptor::operator|.
 316
 317 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
 318
 319         * include/std/format (_Spec::_M_parse_fill_and_align): Do not
 320         use CTAD for _Utf32_view.
 321
 322 2024-01-19  Jonathan Wakely  <jwakely@redhat.com>
 323
 324         PR libstdc++/108822
 325         * include/std/tuple (__glibcxx_no_dangling_refs) [C++17]: Fix
 326         wrong fold-operator.
 327         * testsuite/20_util/tuple/dangling_ref.cc: Check tuples with one
 328         element and three elements. Check allocator-extended
 329         constructors.
 330
 331 2024-01-19  Patrick Palka  <ppalka@redhat.com>
 332
 333         * include/precompiled/stdc++.h [_GLIBCXX_HOSTED]: Include
 334         <print> and <text_encoding> for C++23 and C++26 respectively.
 335
 336 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 337
 338         * include/bits/stl_pair.h [__cplusplus > 202002L]:
 339         Guard P2321R2 changes with __glibcxx_ranges_zip instead.
 340
 341 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 342
 343         * include/std/tuple [__cplusplus > 202002L]: Guard P2321R2
 344         changes with __cpp_lib_ranges_zip instead.
 345
 346 2024-01-18  Patrick Palka  <ppalka@redhat.com>
 347
 348         PR libstdc++/109536
 349         * include/debug/safe_base.h (_Safe_sequence_base::_M_swap):
 350         Remove _GLIBCXX20_CONSTEXPR from non-inline member function.
 351         * include/debug/safe_iterator.h
 352         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_BEGIN): Define.
 353         (_GLIBCXX20_CONSTEXPR_NON_LITERAL_SCOPE_END): Define.
 354         (_Safe_iterator::operator=): Use them around the code path that
 355         defines a variable of type __gnu_cxx::__scoped_lock.
 356         (_Safe_iterator::operator++): Likewise.
 357         (_Safe_iterator::operator--): Likewise.
 358         (_Safe_iterator::operator+=): Likewise.
 359         (_Safe_iterator::operator-=): Likewise.
 360         * testsuite/23_containers/vector/element_access/constexpr.cc
 361         (test_iterators): Test more iterator operations.
 362         * testsuite/23_containers/vector/bool/element_access/constexpr.cc
 363         (test_iterators): Likewise.
 364         * testsuite/std/ranges/adaptors/all.cc (test08) [_GLIBCXX_DEBUG]:
 365         Remove.
 366
 367 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
 368
 369         * include/bits/unicode.h (__charset_alias_match): Initialize
 370         __var_a and __var_b.
 371
 372 2024-01-18  Jonathan Wakely  <jwakely@redhat.com>
 373
 374         PR libstdc++/113450
 375         * testsuite/std/format/functions/format.cc: Use signed char
 376         instead of int8_t.
 377
 378 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
 379
 380         PR libstdc++/113318
 381         * acinclude.m4 (GLIBCXX_CONFIGURE): Add c++26 directory.
 382         (GLIBCXX_CHECK_TEXT_ENCODING): Define.
 383         * config.h.in: Regenerate.
 384         * configure: Regenerate.
 385         * configure.ac: Use GLIBCXX_CHECK_TEXT_ENCODING.
 386         * include/Makefile.am: Add new headers.
 387         * include/Makefile.in: Regenerate.
 388         * include/bits/locale_classes.h (locale::encoding): Declare new
 389         member function.
 390         * include/bits/unicode.h (__charset_alias_match): New function.
 391         * include/bits/text_encoding-data.h: New file.
 392         * include/bits/version.def (text_encoding): Define.
 393         * include/bits/version.h: Regenerate.
 394         * include/std/text_encoding: New file.
 395         * src/Makefile.am: Add new subdirectory.
 396         * src/Makefile.in: Regenerate.
 397         * src/c++26/Makefile.am: New file.
 398         * src/c++26/Makefile.in: New file.
 399         * src/c++26/text_encoding.cc: New file.
 400         * src/experimental/Makefile.am: Include c++26 convenience
 401         library.
 402         * src/experimental/Makefile.in: Regenerate.
 403         * python/libstdcxx/v6/printers.py (StdTextEncodingPrinter): New
 404         printer.
 405         * scripts/gen_text_encoding_data.py: New file.
 406         * testsuite/22_locale/locale/encoding.cc: New test.
 407         * testsuite/ext/unicode/charset_alias_match.cc: New test.
 408         * testsuite/std/text_encoding/cons.cc: New test.
 409         * testsuite/std/text_encoding/members.cc: New test.
 410         * testsuite/std/text_encoding/requirements.cc: New test.
 411
 412 2024-01-17  Jonathan Wakely  <jwakely@redhat.com>
 413
 414         * include/bits/unicode.h (_Grapheme_cluster_view): Require view.
 415         Do not use CTAD for _Utf32_view.
 416         (__format_width, __truncate): Do not use CTAD.
 417         (enable_borrowed_range<_Utf_view<T, R>>): Define specialization.
 418         (enable_borrowed_range<_Grapheme_cluster_view<R>>): Likewise.
 419
 420 2024-01-17  Patrick Palka  <ppalka@redhat.com>
 421
 422         * include/std/ranges (views::_CartesianProduct::operator()):
 423         Adjust identity case as per P2540R1.
 424         * testsuite/std/ranges/cartesian_product/1.cc (test01):
 425         Adjust expected result of the identity case.
 426
 427 2024-01-15  Patrick Palka  <ppalka@redhat.com>
 428
 429         * include/std/variant (__detail::__variant::_Variadic_union):
 430         Add bool __trivially_destructible template parameter.
 431         (__detail::__variant::_Variadic_union::~_Variadic_union):
 432         Use __trivially_destructible in constraints instead.
 433         (__detail::__variant::_Variant_storage): Pass
 434         __trivially_destructible value to _Variadic_union.
 435
 436 2024-01-15  Patrick Palka  <ppalka@redhat.com>
 437
 438         * include/bits/stl_iterator.h (const_iterator): Define conversion
 439         operators as per P2836R1.
 440         * include/bits/version.def (ranges_as_const): Update value.
 441         * include/bits/version.h: Regenerate.
 442         * testsuite/24_iterators/const_iterator/1.cc (test04): New test.
 443         * testsuite/std/ranges/adaptors/as_const/1.cc: Adjust expected
 444         value of __cpp_lib_ranges_as_const.
 445         * testsuite/std/ranges/version_c++23.cc: Likewise.
 446
 447 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 448
 449         PR libstdc++/108822
 450         * include/std/tuple (__assignable, __is_nothrow_assignable):
 451         Move pre-C++20 definitions adjacent to their use.
 452
 453 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 454
 455         PR testsuite/113366
 456         * include/std/format (basic_format_arg): Use __formattable
 457         variable template instead of __format::__formattable_with
 458         concept.
 459
 460 2024-01-15  Jonathan Wakely  <jwakely@redhat.com>
 461
 462         * src/c++20/tzdata.zi: Import new file from 2023d release.
 463         * src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds)
 464         Update expiry date for leap seconds list.
 465
 466 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
 467
 468         PR libstdc++/108822
 469         * include/std/tuple (tuple): Add checks for dangling references.
 470         Reimplement constraints and constant expressions using C++20
 471         features.
 472         * include/std/type_traits [C++20]
 473         (__is_implicitly_default_constructible_v): Define.
 474         (__is_implicitly_default_constructible): Use variable template.
 475         * testsuite/20_util/tuple/dangling_ref.cc: New test.
 476
 477 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 478
 479         PR libstdc++/108827
 480         PR libstdc++/111327
 481         * include/bits/version.def (bind_back): Define.
 482         * include/bits/version.h: Regenerate.
 483         * include/std/functional (_Bind_back): Define for C++23.
 484         (bind_back): Likewise.
 485         * testsuite/20_util/function_objects/bind_back/1.cc: New test
 486         (adapted from corresponding bind_front test).
 487         * testsuite/20_util/function_objects/bind_back/111327.cc: Likewise.
 488
 489 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 490
 491         * include/std/functional (_Bind_front): Remove =default special
 492         member function declarations.
 493         (_Bind_front::operator()): Implement using C++23 deducing this
 494         when available.
 495         * testsuite/20_util/function_objects/bind_front/111327.cc:
 496         Adjust testcase to expect better errors in C++23 mode.
 497
 498 2024-01-13  Patrick Palka  <ppalka@redhat.com>
 499
 500         * include/std/ranges (views::__adaptor::operator|): Perform
 501         perfect forwarding of arguments.
 502         (views::__adaptor::_RangeAdaptor::operator()): Pass dummy
 503         first argument to _Partial.
 504         (views::__adaptor::_Partial::_Partial): Likewise.  Add dummy
 505         first parameter.
 506         (views::__adaptor::_Pipe::_Pipe): Perform perfect forwarding
 507         of arguments.
 508         (to): Pass dummy first argument to _Partial.
 509
 510 2024-01-13  Jonathan Wakely  <jwakely@redhat.com>
 511
 512         PR libstdc++/107466
 513         * include/bits/random.tcc (subtract_with_carry_engine::seed):
 514         Implement proposed resolution of LWG 4014.
 515         * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error
 516         line number.
 517         * testsuite/26_numerics/random/subtract_with_carry_engine/cons/lwg3809.cc:
 518         Check for expected result of 64-bit engine with seed that
 519         doesn't fit in 32-bits.
 520
 521 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 522
 523         PR libstdc++/113320
 524         * include/std/format (__format::_Runtime_format_string): Add
 525         constructor and disable copy operations.
 526         (basic_format_string(_Runtime_format_string)): Add noexcept and
 527         take parameter by value not rvalue reference.
 528         (runtime_format): Add noexcept.
 529         * testsuite/std/format/runtime_format.cc: Check noexcept. Check
 530         that construction is only possible from prvalues, not xvalues.
 531
 532 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 533
 534         PR libstdc++/105505
 535         * include/bits/stl_pair.h (pair::pair(U1&&, U2&&)) [C++23]: Add
 536         default template arguments, as per P1951R1.
 537         * testsuite/20_util/pair/cons/default_tmpl_args.cc: New test.
 538
 539 2024-01-12  Jonathan Wakely  <jwakely@redhat.com>
 540
 541         * include/std/format (__format::_Arg_store): Fix PR number in
 542         comment. Simplify preprocessor code.
 543
 544 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 545
 546         * doc/xml/manual/evolution.xml: Fix spelling.
 547         * doc/html/manual/api.html: Regenerate.
 548
 549 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 550
 551         * doc/xml/manual/evolution.xml: Document addition of
 552         libstdc++exp.a.
 553         * doc/html/*: Regenerate.
 554
 555 2024-01-11  Marcus Haehnel  <marcus.haehnel@kernkonzept.com>
 556
 557         * libsupc++/eh_unex_handler.cc: Adjust definition type to
 558         declaration.
 559
 560 2024-01-11  Michael Levine  <mlevine55@bloomberg.net>
 561
 562         * include/std/ranges (__glibcxx_want_ranges_iota): Remove
 563         duplicate definition.
 564
 565 2024-01-11  François Dumont  <fdumont@gcc.gnu.org>
 566
 567         PR libstdc++/112477
 568         * src/c++11/debug.cc
 569         (_Safe_iterator_base::_M_attach): Reset _M_version to 0 if attaching to null
 570         sequence.
 571         (_Safe_iterator_base::_M_attach_single): Likewise.
 572         (_Safe_local_iterator_base::_M_attach): Likewise.
 573         (_Safe_local_iterator_base::_M_attach_single): Likewise.
 574         * testsuite/23_containers/map/debug/112477.cc: New test case.
 575
 576 2024-01-11  Patrick Palka  <ppalka@redhat.com>
 577
 578         * include/bits/move.h (__like_t): Define in C++23 mode.
 579         * include/std/ranges (views::__adaptor::Partial::operator()):
 580         Implement using C++23 deducing this when available.
 581         (views::__adaptor::_Pipe::operator()): Likewise.
 582         * testsuite/std/ranges/adaptors/100577.cc: Adjust testcase to
 583         accept new "no match for call" errors issued in C++23 mode.
 584         * testsuite/std/ranges/adaptors/lazy_split_neg.cc: Likewise.
 585
 586 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 587
 588         * python/libstdcxx/v6/printers.py (StdIntegralConstantPrinter):
 589         Add printer for std::integral_constant.
 590         * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it.
 591
 592 2024-01-11  Jonathan Wakely  <jwakely@redhat.com>
 593
 594         PR libstdc++/113258
 595         * libsupc++/new_opa.cc: Prefer to use posix_memalign if
 596         available.
 597
 598 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 599
 600         * src/filesystem/ops-common.h (stat_type): Use using.
 601
 602 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 603
 604         PR libstdc++/113250
 605         * src/c++17/fs_ops.cc (fs::equivalent): Use || instead of &&.
 606         * src/filesystem/ops.cc (fs::equivalent): Likewise.
 607         * testsuite/27_io/filesystem/operations/equivalent.cc: Handle
 608         error codes.
 609         * testsuite/experimental/filesystem/operations/equivalent.cc:
 610         Likewise.
 611
 612 2024-01-11  Ken Matsui  <kmatsui@gcc.gnu.org>
 613
 614         * include/std/type_traits (is_compound): Do not use __not_.
 615         (is_compound_v): Use is_fundamental_v instead.
 616
 617 2024-01-11  Patrick Palka  <ppalka@redhat.com>
 618
 619         * include/bits/utility.h (_Nth_type): Use
 620         _GLIBCXX_USE_BUILTIN_TRAIT instead of __has_builtin.
 621
 622 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
 623
 624         * include/bits/unicode-data.h: Regenerate.
 625         * include/bits/unicode.h (_Utf_iterator::operator++()): Fix off
 626         by one error.
 627         (__incb_property): Add missing check for values before the
 628         first edge.
 629         (__is_extended_pictographic): Invert return values to fix
 630         copy&pasted logic.
 631         (_Grapheme_cluster_view::_Iterator): Remove second iterator
 632         member and find end of cluster lazily.
 633         * testsuite/ext/unicode/grapheme_view.cc: New test.
 634         * testsuite/ext/unicode/properties.cc: New test.
 635         * testsuite/ext/unicode/view.cc: New test.
 636
 637 2024-01-09  Andreas Schwab  <schwab@linux-m68k.org>
 638
 639         * scripts/extract_symvers.in: Require final colon to only match
 640         .dsynsym in the header of the dynamic symtab.
 641
 642 2024-01-09  Jonathan Wakely  <jwakely@redhat.com>
 643
 644         * include/bits/chrono_io.h (__formatter_chrono::_M_F): Simplify
 645         handling of string returned from std::format.
 646         (__formatter_chrono::_M_R_T): Likewise.
 647
 648 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 649
 650         * include/bits/unicode.h (__null_sentinel): Remove.
 651         * testsuite/17_intro/names.cc: Add __null_sentinel.
 652
 653 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 654
 655         * include/std/format (__format::_Runtime_format_string): Define
 656         new class template.
 657         (basic_format_string): Add non-consteval constructor for runtime
 658         format strings.
 659         (runtime_format): Define new function for C++26.
 660         * testsuite/std/format/runtime_format.cc: New test.
 661
 662 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 663
 664         * include/bits/chrono_io.h (__formatter_chrono): Always use
 665         lvalue arguments to make_format_args.
 666         * include/std/format (make_format_args): Change parameter pack
 667         from forwarding references to lvalue references. Remove use of
 668         remove_reference_t which is now unnecessary.
 669         (format_to, formatted_size): Remove incorrect forwarding of
 670         arguments.
 671         * include/std/ostream (print): Remove forwarding of arguments.
 672         * include/std/print (print): Likewise.
 673         * testsuite/20_util/duration/io.cc: Use lvalues as arguments to
 674         make_format_args.
 675         * testsuite/std/format/arguments/args.cc: Likewise.
 676         * testsuite/std/format/arguments/lwg3810.cc: Likewise.
 677         * testsuite/std/format/functions/format.cc: Likewise.
 678         * testsuite/std/format/functions/vformat_to.cc: Likewise.
 679         * testsuite/std/format/string.cc: Likewise.
 680         * testsuite/std/time/day/io.cc: Likewise.
 681         * testsuite/std/time/month/io.cc: Likewise.
 682         * testsuite/std/time/weekday/io.cc: Likewise.
 683         * testsuite/std/time/year/io.cc: Likewise.
 684         * testsuite/std/time/year_month_day/io.cc: Likewise.
 685         * testsuite/std/format/arguments/args_neg.cc: New test.
 686
 687 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 688
 689         * include/Makefile.am: Add new headers.
 690         * include/Makefile.in: Regenerate.
 691         * include/bits/unicode.h: New file.
 692         * include/bits/unicode-data.h: New file.
 693         * include/std/format: Include <bits/unicode.h>.
 694         (__literal_encoding_is_utf8): Move to <bits/unicode.h>.
 695         (_Spec::_M_fill): Change type to char32_t.
 696         (_Spec::_M_parse_fill_and_align): Read a Unicode scalar value
 697         instead of a single character.
 698         (__write_padded): Change __fill_char parameter to char32_t and
 699         encode it into the output.
 700         (__formatter_str::format): Use new __unicode::__field_width and
 701         __unicode::__truncate functions.
 702         * include/std/ostream: Adjust namespace qualification for
 703         __literal_encoding_is_utf8.
 704         * include/std/print: Likewise.
 705         * src/c++23/print.cc: Add [[unlikely]] attribute to error path.
 706         * testsuite/ext/unicode/view.cc: New test.
 707         * testsuite/std/format/functions/format.cc: Add missing examples
 708         from the standard demonstrating alignment with non-ASCII
 709         characters. Add examples checking correct handling of extended
 710         grapheme clusters.
 711
 712 2024-01-08  Jonathan Wakely  <jwakely@redhat.com>
 713
 714         * include/bits/version.def (format_uchar): Define.
 715         * include/bits/version.h: Regenerate.
 716         * include/std/format (formatter<C, C>::format): Check for
 717         _Pres_c and call _M_format_character directly. Cast C to its
 718         unsigned equivalent for formatting as an integer.
 719         (formatter<char, wchar_t>::format): Likewise.
 720         (basic_format_arg(T&)): Store char arguments as unsigned char
 721         for formatting to a wide string.
 722         * testsuite/std/format/functions/format.cc: Adjust test. Check
 723         formatting of
 724
 725 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 726
 727         PR libstdc++/112997
 728         * libsupc++/unwind-cxx.h (__cxa_call_terminate): Change first
 729         parameter to void*.
 730
 731 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 732
 733         * testsuite/20_util/variant/87619.cc: Remove dg-timeout-factor.
 734
 735 2024-01-07  Jonathan Wakely  <jwakely@redhat.com>
 736
 737         * include/std/type_traits (is_trivially_destructible_v): Use
 738         built-in directly when concepts are supported.
 739         * testsuite/20_util/is_trivially_destructible/value_v.cc: New
 740         test.
 741
 742 2024-01-06  Gwenole Beauchesne  <gb.devel@gmail.com>
 743
 744         * testsuite/tr1/8_c_compatibility/cinttypes/functions.cc: Use
 745         nonnull arguments to strtoimax() and wcstoimax() functions.
 746
 747 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 748
 749         * src/c++17/fs_path.cc (path::_List::reserve): Limit maximum
 750         size and check for overflows in arithmetic.
 751         (path::operator/=(const path&)): Remove redundant exponential
 752         growth calculation.
 753
 754 2024-01-05  Martin Küttler  <martin.kuettler@kernkonzept.com>
 755
 756         * src/c++17/fs_path.cc (path::_List::reserve): Avoid
 757         floating-point arithmetic.
 758
 759 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 760
 761         PR libstdc++/113241
 762         * include/std/type_traits (is_convertible_v): Guard use of
 763         built-in with preprocessor check.
 764
 765 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 766
 767         PR libstdc++/113200
 768         * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Use
 769         __builtin_constant_p to check for unrelated pointers that cannot
 770         be compared during constant evaluation.
 771         * testsuite/21_strings/char_traits/requirements/113200.cc: New
 772         test.
 773
 774 2024-01-05  Cassio Neri  <cassio.neri@gmail.com>
 775
 776         * include/std/chrono: Fix + and - for months and weekdays.
 777         * testsuite/std/time/month/1.cc: Add constexpr tests against overflow.
 778         * testsuite/std/time/month/2.cc: New test for extreme values.
 779         * testsuite/std/time/weekday/1.cc: Add constexpr tests against overflow.
 780         * testsuite/std/time/weekday/2.cc: New test for extreme values.
 781
 782 2024-01-05  Jonathan Wakely  <jwakely@redhat.com>
 783
 784         PR libstdc++/113099
 785         * include/bits/locale_classes.tcc (__try_use_facet): Use
 786         if-constexpr for C++11 and up.
 787
 788 2024-01-05  Ken Matsui  <kmatsui@gcc.gnu.org>
 789
 790         * include/std/type_traits: Use _GLIBCXX_USE_BUILTIN_TRAIT.
 791
 792 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
 793
 794         * include/std/generator (_Subyield_state::_M_jump_in): Fix typo
 795         reported by Will Hawkins <hawkinsw@obs.cr>.
 796
 797 2024-01-04  Arsen Arsenović  <arsen@aarsen.me>
 798
 799         * include/std/generator (_Stateless_alloc): Rename typename _A
 800         to _All.
 801
 802 2024-01-03  Patrick Palka  <ppalka@redhat.com>
 803
 804         PR testsuite/113175
 805         * testsuite/std/ranges/iota/max_size_type.cc (test02): Reduce
 806         'limit' to 100 from 1000 and adjust 'log2_limit' accordingly.
 807         (test03): Likewise.
 808
 809 \f
 810 Copyright (C) 2024 Free Software Foundation, Inc.
 811
 812 Copying and distribution of this file, with or without modification,
 813 are permitted in any medium without royalty provided the copyright
 814 notice and this notice are preserved.