2022-08-17 Keef Aragon * libsupc++/eh_alloc.cc (pool::free): Inverse comparison. 2022-08-08 François Dumont * include/debug/formatter.h (__singular_value_init): New _Iterator_state enum entry. (_Parameter<>(const _Safe_iterator<>&, const char*, _Is_iterator)): Check if iterator parameter is value-initialized. (_Parameter<>(const _Safe_local_iterator<>&, const char*, _Is_iterator)): Likewise. * include/debug/safe_iterator.h (_Safe_iterator<>::_M_value_initialized()): New. Adapt checks. * include/debug/safe_local_iterator.h (_Safe_local_iterator<>::_M_value_initialized()): New. Adapt checks. * src/c++11/debug.cc (_Safe_iterator_base::_M_reset): Do not reset _M_version. (print_field(PrintContext&, const _Parameter&, const char*)): Adapt state_names. * testsuite/23_containers/deque/debug/iterator1_neg.cc: New test. * testsuite/23_containers/deque/debug/iterator2_neg.cc: New test. * testsuite/23_containers/forward_list/debug/iterator1_neg.cc: New test. * testsuite/23_containers/forward_list/debug/iterator2_neg.cc: New test. * testsuite/23_containers/forward_list/debug/iterator3_neg.cc: New test. 2022-08-05 Jonathan Wakely * include/experimental/scope (__cpp_lib_experimental_scope): Define. * testsuite/experimental/scopeguard/uniqueres.cc: Check macro. 2022-08-05 Jonathan Wakely * include/Makefile.am: Add new header. * include/Makefile.in: Regenerate. * include/experimental/scope: New file. * testsuite/experimental/scopeguard/uniqueres.cc: New test. * testsuite/experimental/scopeguard/exit.cc: New test. 2022-08-04 Jonathan Wakely * include/std/string_view (basic_string_view(Range&&)): Add explicit as per P2499R0. * testsuite/21_strings/basic_string_view/cons/char/range_c++20.cc: Adjust implicit conversions. Check implicit conversions fail. * testsuite/21_strings/basic_string_view/cons/wchar_t/range_c++20.cc: Likewise. 2022-08-04 Jonathan Wakely * include/bits/fs_dir.h (directory_iterator): Add comparison with std::default_sentinel_t. Remove redundant operator!= for C++20. * (recursive_directory_iterator): Likewise. * include/bits/iterator_concepts.h [!__cpp_lib_concepts] (default_sentinel_t, default_sentinel): Define even if concepts are not supported. * include/bits/regex.h (regex_iterator): Add comparison with std::default_sentinel_t. Remove redundant operator!= for C++20. (regex_token_iterator): Likewise. (regex_token_iterator::_M_end_of_seq()): Add noexcept. * testsuite/27_io/filesystem/iterators/lwg3719.cc: New test. * testsuite/28_regex/iterators/regex_iterator/lwg3719.cc: New test. * testsuite/28_regex/iterators/regex_token_iterator/lwg3719.cc: New test. 2022-08-04 Jonathan Wakely * include/std/expected (unexpected::_M_val): Rename to _M_unex. (bad_expected_access::_M_val): Likewise. 2022-08-04 Jonathan Wakely * include/bits/ios_base.h (__cpp_lib_ios_noreplace): Update value to 202207L. * include/std/version (__cpp_lib_ios_noreplace): Likewise. * testsuite/27_io/basic_ofstream/open/char/noreplace.cc: Check for new value. * testsuite/27_io/basic_ofstream/open/wchar_t/noreplace.cc: Likewise. 2022-08-04 Jonathan Wakely PR libstdc++/106183 * include/bits/atomic_wait.h (__waiter_pool_base::_M_notify): Move increment of _M_ver here. [!_GLIBCXX_HAVE_PLATFORM_WAIT]: Lock mutex around increment. Use relaxed memory order and always notify all waiters. (__waiter_base::_M_do_wait) [!_GLIBCXX_HAVE_PLATFORM_WAIT]: Check value again after locking mutex. (__waiter_base::_M_notify): Remove increment of _M_ver. 2022-08-04 Ulrich Drepper * python/libstdcxx/v6/printers.py (class StdTuplePrinter): Use zero-based indeces just like std:get takes. 2022-07-29 Jonathan Wakely PR libstdc++/104443 * include/bits/stl_iterator.h (common_iterator::operator->): Change return type to just auto. 2022-07-26 Thomas Rodgers * include/bits/atomic_wait.h (__atomic_spin): Merge spin loops. 2022-07-20 Jonathan Wakely PR libstdc++/100823 * include/bits/stl_iterator.h (common_iterator): Define destructor, copy constructor and move constructor as trivial when the underlying types allow. * testsuite/24_iterators/common_iterator/100823.cc: Check triviality of special members. 2022-07-20 Jonathan Wakely PR libstdc++/100823 * include/bits/stl_iterator.h (common_iterator): Define move constructor and move assignment operator. (common_iterator::_M_assign): New function implementing assignment. (common_iterator::operator=): Use _M_assign. (common_iterator::_S_valueless): New constant. * testsuite/24_iterators/common_iterator/100823.cc: New test. 2022-07-20 Jonathan Wakely * include/bits/stl_iterator.h (common_iterator): Fix incorrect uses of is_nothrow_assignable_v. Fix inconsistent constraints on friend declaration. Do not move argument in copy constructor. * testsuite/24_iterators/common_iterator/1.cc: Check for noexcept constructibnle/assignable. 2022-07-19 François Dumont * include/debug/debug.h [_GLIBCXX_DEBUG](__glibcxx_requires_string): Define using _GLIBCXX_DEBUG_PEDASSERT. [_GLIBCXX_DEBUG](__glibcxx_requires_string_len): Likewise. * include/debug/macros.h (__glibcxx_check_string, __glibcxx_check_string_len): Move... * include/debug/string (__glibcxx_check_string, __glibcxx_check_string_len): ...here. And define depending on _GLIBCXX_DEBUG_PEDANTIC no matter if _GLIBCXX_DEBUG is defined. Add using of std::string find, rfind, find_first_of, find_last_of, find_first_not_of and find_last_not_of. Remove debug implementations having no debug assertion. * testsuite/util/testsuite_string.h: New file. Provides __gnu_test::string and __gnu_test::wtring which definition depends on _GLIBCXX_DEBUG. * testsuite/21_strings/basic_string/debug/find1_neg.cc: New test case. * testsuite/21_strings/basic_string/debug/find2_neg.cc: New test case. * testsuite/21_strings/basic_string/operations/find/char/1.cc: Include and use __gnu_test::string. * testsuite/21_strings/basic_string/operations/find/char/2.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/char/3.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/char/4.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/char/5.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/char/6.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/wchar_t/1.cc: Include and use __gnu_test::wstring. * testsuite/21_strings/basic_string/operations/find/wchar_t/2.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/wchar_t/3.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/wchar_t/4.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/wchar_t/5.cc: Likewise. * testsuite/21_strings/basic_string/operations/find/wchar_t/6.cc: Likewise. 2022-07-19 Jonathan Wakely * include/std/type_traits (__cpp_lib_reference_from_temporary) (reference_constructs_from_temporary) (reference_converts_from_temporary): Only define when the built-ins are available. 2022-07-19 Marco Falke * include/std/charconv (__from_chars_alnum_to_val): Replace implicit conversion from int to unsigned char with explicit cast. 2022-07-19 Sebastian Huber * configure: Regnerate. * configure.ac (newlib, *-rtems*): Remove HAVE_POLL. 2022-07-18 François Dumont * include/bits/stl_algo.h (__merge_adaptive): Adapt to merge only when buffer is large enough.. (__merge_adaptive_resize): New, adapt merge when buffer is too small. (__inplace_merge): Adapt, use latter. (__stable_sort_adaptive): Adapt to sort only when buffer is large enough. (__stable_sort_adaptive_resize): New, adapt sort when buffer is too small. (__stable_sort): Adapt, use latter. 2022-07-15 Marek Polacek PR c++/104477 * include/std/type_traits (reference_constructs_from_temporary, reference_converts_from_temporary): New class templates. (reference_constructs_from_temporary_v, reference_converts_from_temporary_v): New variable templates. (__cpp_lib_reference_from_temporary): Define for C++23. * include/std/version (__cpp_lib_reference_from_temporary): Define for C++23. * testsuite/20_util/variable_templates_for_traits.cc: Test reference_constructs_from_temporary_v and reference_converts_from_temporary_v. * testsuite/20_util/reference_from_temporary/value.cc: New test. * testsuite/20_util/reference_from_temporary/value2.cc: New test. * testsuite/20_util/reference_from_temporary/version.cc: New test. 2022-07-12 Jonathan Wakely PR libstdc++/106248 * include/std/istream [C++17] (operator>>(istream&, char*)): Set eofbit if we stopped extracting at EOF. * testsuite/27_io/basic_istream/extractors_character/char/pr106248.cc: New test. * testsuite/27_io/basic_istream/extractors_character/wchar_t/pr106248.cc: New test. 2022-07-12 Jonathan Wakely * include/bits/stl_iterator.h (__iter_to_alloc_t): Replace add_const_t with const-qualifier. * include/bits/utility.h (tuple_element): Likewise for all cv-qualifiers. * include/std/type_traits (add_const, add_volatile): Replace typedef-declaration with using-declaration. (add_cv): Replace add_const and add_volatile with cv-qualifiers. * include/std/variant (variant_alternative): Replace add_const_t, add_volatile_t and add_cv_t etc. with cv-qualifiers. 2022-07-09 François Dumont * include/std/string: Remove obsolete comment about char_traits.h including stl_algobase.h. 2022-07-07 Jonathan Wakely PR c++/89074 * include/bits/char_traits.h (__gnu_cxx::char_traits::move): Remove workaround for front-end bug. 2022-07-05 Alexandre Oliva * testsuite/util/testsuite_fs.h (nonexistent_path): Explain why we need the typecast. 2022-07-05 Alexandre Oliva * testsuite/util/testsuite_fs.h (nonexistent_path): Convert the getpid result to an integral type. 2022-07-01 Jonathan Wakely PR libstdc++/106162 * include/Makefile.am (largefile-config.h): Add stamp-${host_alias} prerequisite. * include/Makefile.in: Regenerate. 2022-07-01 Jonathan Wakely * include/bits/fs_ops.h: Add nodiscard to all pure functions. * include/experimental/bits/fs_ops.h: Likewise. * testsuite/27_io/filesystem/operations/all.cc: Do not discard results of absolute and canonical. * testsuite/27_io/filesystem/operations/absolute.cc: Cast discarded result to void. * testsuite/27_io/filesystem/operations/canonical.cc: Likewise. * testsuite/27_io/filesystem/operations/exists.cc: Likewise. * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise. * testsuite/27_io/filesystem/operations/status.cc: Likewise. * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise. * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Likewise. * testsuite/experimental/filesystem/operations/canonical.cc: Likewise. * testsuite/experimental/filesystem/operations/exists.cc: Likewise. * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise. * testsuite/experimental/filesystem/operations/read_symlink.cc: Likewise. * testsuite/experimental/filesystem/operations/temp_directory_path.cc: Likewise. 2022-07-01 Sebastian Huber * configure: Regnerate. * configure.ac (newlib, *-rtems*): Enable TLS support for all RTEMS targets except bfin, lm32, mips, moxie, or1k, and v850. For all RTEMS targets, define HAVE_ALIGNED_ALLOC, HAVE_AT_QUICK_EXIT, HAVE_LINK, HAVE_POLL, HAVE_QUICK_EXIT, HAVE_READLINK, HAVE_SETENV, HAVE_SLEEP, HAVE_SOCKATMARK, HAVE_STRERROR_L, HAVE_SYMLINK, HAVE_TRUNCATE, and HAVE_USLEEP. * crossconfig.m4 (*-rtems*): Remove. 2022-06-30 Jonathan Wakely * include/bits/utility.h: Fix comment typos. 2022-06-30 Jonathan Wakely * src/c++17/fs_ops.cc (fs::temp_directory_path()): Include path in exception. (fs::temp_directory_path(error_code&)): Rearrange to more closely match the structure of the first overload. * src/filesystem/ops.cc (fs::temp_directory_path): Likewise. * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Check that exception contains the path. * testsuite/experimental/filesystem/operations/temp_directory_path.cc: Likewise. 2022-06-30 Jonathan Wakely PR libstdc++/88881 * src/filesystem/ops.cc (has_trailing_slash): New helper function. (fs::status): Strip trailing slashes. (fs::symlink_status): Likewise. * testsuite/experimental/filesystem/operations/temp_directory_path.cc: Clean the environment before each test and use TMP instead of TMPDIR so the test passes on Windows. 2022-06-28 Jonathan Wakely * src/filesystem/dir-common.h (_Dir_base::_At_path): Use char_type consistently for paths. 2022-06-28 Jonathan Wakely * src/c++17/fs_dir.cc (_Dir::dir_and_pathname):: Replace with current() returning _At_path. (_Dir::_Dir, _Dir::open_subdir, _Dir::do_unlink): Adjust. * src/filesystem/dir-common.h (_Dir_base::_At_path): New class. (_Dir_base::_Dir_Base, _Dir_base::openat): Use _At_path. * src/filesystem/dir.cc (_Dir::dir_and_pathname): Replace with current() returning _At_path. (_Dir::_Dir, _Dir::open_subdir): Adjust. 2022-06-28 Jonathan Wakely * src/c++17/fs_dir.cc (_Dir::_Dir) [!_GLIBCXX_HAVE_OPENAT]: Always store pathname if we don't have openat or unlinkat, because the full path is needed to open sub-directories and remove entries. 2022-06-28 Jonathan Wakely * testsuite/20_util/from_chars/4.cc: Only use log2 if C99 math functions are available. 2022-06-27 Alexandre Oliva * testsuite/20_util/to_chars/long_double.cc: Use cmath long double overloads for nexttoward and ldexp. 2022-06-27 Alexandre Oliva * testsuite/experimental/simd/standard_abi_usable.cc: Require cmath support. * testsuite/experimental/simd/standard_abi_usable_2.cc: Likewise. 2022-06-27 Alexandre Oliva * testsuite/26_numerics/complex/proj.cc: Skip test in the circumstances in which the implementation of proj is known to be broken. 2022-06-27 Alexandre Oliva * src/c++17/fs_dir.cc (dir_and_pathname): Use dirfd if _GLIBCXX_HAVE_OPENAT. 2022-06-27 Alexandre Oliva * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc (test06): Don't create symlinks when NO_SYMLINKS is defined. 2022-06-27 Alexandre Oliva * testsuite/lib/dg-options.exp (add_options_for_net_ts): Add -Wl,--gc-sections for RTEMS targets. * testsuite/experimental/net/timer/waitable/dest.cc: Link-time xfail on RTEMS. * testsuite/experimental/net/timer/waitable/ops.cc: Likewise. * testsuite/experimental/net/internet/resolver/ops/lookup.cc: Execution-time xfail on RTEMS. * testsuite/experimental/net/internet/resolver/ops/reverse.cc: Likewise. 2022-06-27 Jonathan Wakely * testsuite/ext/mt_allocator/22309_thread.cc: Include . 2022-06-27 Joel Brobecker Jonathan Wakely * testsuite/util/testsuite_fs.h (__gnu_test::nonexistent_path): Always include a counter in the filename returned. 2022-06-27 Jonathan Wakely * include/bits/move_only_function.h (_Never_valueless_alt): Define partial specialization for std::move_only_function. 2022-06-27 Jonathan Wakely * include/std/variant (_Build_FUN::_S_fun): Define fallback case as deleted. (__accepted_index, _Extra_visit_slot_needed): Replace class templates with variable templates. 2022-06-27 Jonathan Wakely * include/bits/fs_path.h (__is_path_iter_src): Replace class template with variable template. 2022-06-27 Jonathan Wakely * include/bits/chrono.h (is_clock_v): Define to false. (is_clock_v): Define partial specialization for true cases. (is_clock): Define in terms of is_clock_v. 2022-06-24 Xi Ruoyao * scripts/extract_symvers.in: Use grep -E instead of egrep. * scripts/run_doxygen: Likewise. 2022-06-24 Alexandre Oliva * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for openat. * configure, config.h.in: Rebuilt. * src/filesystem/dir-common.h (openat): Use ::openat if _GLIBCXX_HAVE_OPENAT. * src/filesystem/dir.cc (dir_and_pathname): Use dirfd if _GLIBCXX_HAVE_OPENAT. 2022-06-24 Alexandre Oliva * testsuite/27_io/filesystem/operations/rename.cc: xfail on rtems. * testsuite/experimental/filesystem/operations/rename.cc: Likewise. 2022-06-24 Alexandre Oliva * testsuite/util/testsuite_fs.h (NO_LAST_WRITE_TIME): Define when appropriate. * testsuite/lib/libstdc++.exp (check_v3_target_fs_last_write_time): New. * testsuite/lib/dg-options.exp (dg-require-target-fs-lwt): New. * testsuite/27_io/filesystem/operations/last_write_time.cc: Skip the test if the features are unavailable. * testsuite/experimental/filesystem/operations/last_write_time.cc: Likewise. 2022-06-24 Alexandre Oliva * testsuite/util/testsuite_fs.h (NO_SPACE): Define if appropriate. * testsuite/lib/libstdc++.exp (check_v3_target_fs_space): New. * testsuite/lib/dg-options.exp (dg-require-target-fs-space): New. * testsuite/27_io/filesystem/operations/space.cc: Require target-fs-space. * testsuite/experimental/filesystem/operations/space.cc: Likewise. 2022-06-24 Alexandre Oliva * testsuite/util/testsuite_fs.h (NO_SYMLINKS): Define on mingw and when create_symlink is a dummy. * testsuite/27_io/filesystem/operations/symlink_status.cc: Drop mingw xfail. (test01, test02): Don't create symlinks when NO_SYMLINKS is defined. * testsuite/27_io/filesystem/operations/canonical.cc (test03): Likewise. * testsuite/27_io/filesystem/operations/copy.cc (test02): Likewise. * testsuite/27_io/filesystem/operations/create_directories.cc (test04): Likewise. * testsuite/27_io/filesystem/operations/create_directory.cc (test01): Likewise. * testsuite/27_io/filesystem/operations/permissions.cc (test03, test04): Likewise. * testsuite/27_io/filesystem/operations/remove.cc (test01): Likewise. * testsuite/27_io/filesystem/operations/remove_all.cc (test01): Likewise. * testsuite/27_io/filesystem/operations/rename.cc (test_symlinks): Likewise. * testsuite/27_io/filesystem/operations/weakly_canonical.cc (test01): Likewise. * testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc (test06): Likewise. * testsuite/experimental/filesystem/operations/copy.cc (test01): Likewise. * testsuite/experimental/filesystem/operations/create_directories.cc (test04): Likewise. * testsuite/experimental/filesystem/operations/create_directory.cc (test01): Likewise. * testsuite/experimental/filesystem/operations/permissions.cc (test03, test04): Likewise. * testsuite/experimental/filesystem/operations/remove.cc (test01): Likewise. * testsuite/experimental/filesystem/operations/remove_all.cc (test01): Likewise. * testsuite/experimental/filesystem/operations/rename.cc (test01): Likewise. * testsuite/lib/libstdc++.exp (v3_check_preprocessor_condition): Add optional inc parameter. Add it to the test program after include bits/c++config.h. (check_v3_target_fs_symlinks): New. * testsuite/lib/dg-options.exp (dg-require-target-fs-symlinks): New. * testsuite/27_io/filesystem/operations/read_symlink.cc: Replace mingw xfail with require target-fs-symlinks. * testsuite/experimental/filesystem/operations/read_symlink.cc: Likewise. 2022-06-24 Alexandre Oliva * testsuite/27_io/filesystem/operations/copy.cc (test02): Select TO after creating FROM. (test03, test04): Likewise. * testsuite/experimental/filesystem/operations/copy.cc (test02, test03, test04): Likewise. 2022-06-24 Alexandre Oliva * testsuite/30_threads/thread/native_handle/cancel.cc: Add an explicit cancellation point in case sleep_for lacks one. 2022-06-24 Alexandre Oliva * testsuite/lib/dg-options.exp (add_options_for_net_ts): Add -lbsd for RTEMS targets. 2022-06-23 Jonathan Wakely * testsuite/27_io/filesystem/iterators/error_reporting.cc: Use rmdir to remove directories. * testsuite/experimental/filesystem/iterators/error_reporting.cc: Likewise. 2022-06-23 Jonathan Wakely * testsuite/26_numerics/random/random_device/entropy.cc: Use numeric_limits::digits. 2022-06-22 Alexandre Oliva * libsupc++/eh_globals.cc [!_GLIBCXX_HAVE_TLS] (__eh_globals_init::~__eh_globals_init): Clear _S_init first. 2022-06-22 Alexandre Oliva * testsuite/30_threads/this_thread/60421.cc (test02): Call sched_yield. 2022-06-22 Alexandre Oliva * testsuite/20_util/to_chars/long_double.cc: Require cmath. 2022-06-22 Alexandre Oliva * testsuite/23_containers/bitset/cons/dr1325-2.cc: Work around global struct bitset. * testsuite/23_containers/bitset/ext/15361.cc: Likewise. * testsuite/23_containers/bitset/input/1.cc: Likewise. * testsuite/23_containers/bitset/to_string/1.cc: Likewise. * testsuite/23_containers/bitset/to_string/dr396.cc: Likewise. 2022-06-17 Jonathan Wakely * testsuite/21_strings/basic_string/cons/char/105995.cc: Add missing #include. 2022-06-16 Jonathan Wakely PR libstdc++/105995 * include/bits/basic_string.h (_M_use_local_data): Initialize the entire SSO buffer. * testsuite/21_strings/basic_string/cons/char/105995.cc: New test. 2022-06-16 Jonathan Wakely PR libstdc++/101482 * include/ext/vstring.h (operator==): Always check lengths before comparing. 2022-06-15 François Dumont PR libstdc++/105717 * include/bits/hashtable_policy.h (_ConvertToValueType): New. * include/bits/hashtable.h (_Hashtable<>::_M_insert_unique_aux): New. (_Hashtable<>::_M_insert(_Arg&&, const _NodeGenerator&, true_type)): Use latters. (_Hashtable<>::_M_insert(_Arg&&, const _NodeGenerator&, false_type)): Likewise. (_Hashtable(_InputIterator, _InputIterator, size_type, const _Hash&, const _Equal&, const allocator_type&, true_type)): Use this.insert range. (_Hashtable(_InputIterator, _InputIterator, size_type, const _Hash&, const _Equal&, const allocator_type&, false_type)): Use _M_insert. * testsuite/23_containers/unordered_map/cons/56112.cc: Check how many times conversion is done. * testsuite/23_containers/unordered_map/insert/105717.cc: New test. * testsuite/23_containers/unordered_set/insert/105717.cc: New test. 2022-06-14 Jonathan Wakely PR libstdc++/62187 * include/bits/basic_string.h (operator==): Always compare lengths before checking string contents. [!__cpp_lib_three_way_comparison] (operator==, operator!=): Reorder arguments. 2022-06-14 Jonathan Wakely PR libstdc++/59048 * include/bits/basic_string.h (compare): Define inline. * include/bits/basic_string.tcc (compare): Remove out-of-line definitions. * include/bits/cow_string.h (compare): Define inline. * testsuite/21_strings/basic_string/operations/compare/char/3.cc: New test. 2022-06-14 Jonathan Wakely * include/bits/new_allocator.h: Fix indentation. * include/ext/malloc_allocator.h: Likewise. 2022-06-14 Jonathan Wakely PR libstdc++/105957 * include/bits/allocator.h (allocator::allocate): Check for overflow in constexpr allocation. * testsuite/20_util/allocator/105975.cc: New test. 2022-06-13 Mark Mentovai * include/experimental/bits/fs_path.h (__detail::__null_terminated): Rename to __nul_terminated to avoid colliding with a macro in Apple's SDK. 2022-06-13 Jonathan Wakely * include/std/atomic (__atomic_val_t): Use __type_identity_t instead of atomic::value_type, as per LWG 3220. * testsuite/29_atomics/atomic/lwg3220.cc: New test. 2022-06-10 Jonathan Wakely PR libstdc++/105844 * include/experimental/numeric (experimental::gcd): Simplify assertions. Use __abs_r instead of __absu. (experimental::lcm): Likewise. Remove use of __detail::__lcm so overflow can be detected. * include/std/numeric (__detail::__absu): Rename to __abs_r and change to allow signed result type, so overflow can be detected. (__detail::__lcm): Remove. (gcd): Simplify assertions. Use __abs_r instead of __absu. (lcm): Likewise. Remove use of __detail::__lcm so overflow can be detected. * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error lines. * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise. * testsuite/26_numerics/gcd/105844.cc: New test. * testsuite/26_numerics/lcm/105844.cc: New test. 2022-06-10 Jonathan Wakely PR libstdc++/105880 * libsupc++/eh_globals.cc (eh_globals): Ensure constant init and prevent destruction during termination. (__eh_globals_init::_M_init): Replace with static member _S_init. (__cxxabiv1::__cxa_get_globals_fast): Update. (__cxxabiv1::__cxa_get_globals): Likewise. 2022-06-10 Jonathan Wakely * include/bits/basic_string.h (__hash_str_base): New class template. (hash, A>>): Define partial specialization for each of the standard character types. (hash, hash, hash, hash) (hash): Remove explicit specializations. * include/std/string (__hash_string_base): Remove class template. (hash, hash, hash) (hash, hash): Remove explicit specializations. * testsuite/21_strings/basic_string/hash/hash.cc: Test with custom allocators. * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: Likewise. 2022-05-27 Jonathan Wakely PR libstdc++/105671 * include/std/sstream (basic_stringbuf::_M_high_mark): Add always_inline attribute. 2022-05-26 Jonathan Wakely PR libstdc++/105681 * include/ext/pb_ds/detail/resize_policy/hash_prime_size_policy_imp.hpp: Limit ga_sizes array to values that fit in size_t. * include/ext/random [__SIZE_WIDTH < 32] (sfmt86243) (sfmt86243_64, sfmt132049, sfmt132049_64, sfmt216091) (sfmt216091_64): Do not declare. 2022-05-26 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Make lookup for ios_errc and future_errc check versioned namespace. (StdAtomicPrinter): Strip versioned namespace from typename. 2022-05-26 Jonathan Wakely * src/c++11/Makefile.am: Add new source file. * src/c++11/Makefile.in: Regenerate. * src/c++11/cxx11-ios_failure.cc (iostream_category): Move to ... * src/c++11/ios_errcat.cc: New file. * testsuite/27_io/ios_base/failure/error_code.cc: Check that std::iostream_category() is defined and used for std::io_errc. 2022-05-26 Jonathan Wakely * include/bits/stl_iterator.h (counted_iterator::operator++(int)): Add 'constexpr' as per LWG 3643. * testsuite/24_iterators/counted_iterator/lwg3643.cc: New test. 2022-05-26 Jonathan Wakely * include/bits/functional_hash.h (__is_fast_hash): Add doxygen comment. * include/bits/hashtable.h: Do not include here. * include/bits/hashtable_policy.h: Include and . * include/bits/unordered_map.h: Include required headers. * include/bits/unordered_set.h: Likewise. * include/std/unordered_map: Do not include headers for indirect dependencies. * include/std/unordered_set: Likewise. 2022-05-26 Jonathan Wakely * include/bits/ranges_algobase.h: Do not include . * include/std/string: Likewise. * include/std/variant: Likewise. 2022-05-26 Nathan Sidwell * include/bits/hashtable.h: Include required headers. * include/bits/hashtable_policy.h: Likewise. * include/bits/stl_heap.h: Likewise. * include/bits/stl_iterator_base_funcs.h: Likewise. 2022-05-26 François Dumont * python/libstdcxx/v6/printers.py (StdSpanPrinter.__init__): Strip typename from version namespace. 2022-05-26 Jonathan Wakely * python/libstdcxx/v6/printers.py (SharedPointerPrinter): Strip versioned namespace from the template argument too. 2022-05-26 Jonathan Wakely * testsuite/21_strings/basic_string/modifiers/pop_back/char/1.cc: Moved to... * testsuite/21_strings/basic_string/modifiers/pop_back/char.cc: ...here. * testsuite/21_strings/basic_string/modifiers/pop_back/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/modifiers/pop_back/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/modifiers/swap/wchar_t/constexpr.cc: Moved to... * testsuite/21_strings/basic_string/modifiers/swap/constexpr-wchar_t.cc: ...here. * testsuite/21_strings/basic_string/modifiers/swap/char/constexpr.cc: Moved to... * testsuite/21_strings/basic_string/modifiers/swap/constexpr.cc: ...here. * testsuite/21_strings/basic_string/operations/contains/char/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/contains/char.cc: ...here. * testsuite/21_strings/basic_string/operations/contains/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/contains/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/operations/data/char/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/data/char.cc: ...here. * testsuite/21_strings/basic_string/operations/data/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/data/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/operations/ends_with/char/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/ends_with/char.cc: ...here. * testsuite/21_strings/basic_string/operations/ends_with/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/ends_with/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/operations/starts_with/char/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/starts_with/char.cc: ...here. * testsuite/21_strings/basic_string/operations/starts_with/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/starts_with/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/operations/substr/char/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/substr/char.cc: ...here. * testsuite/21_strings/basic_string/operations/substr/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/operations/substr/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/range_access/char/1.cc: Moved to... * testsuite/21_strings/basic_string/range_access/char.cc: ...here. * testsuite/21_strings/basic_string/range_access/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/range_access/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/char.cc: ...here. * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/char.cc: ...here. * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/modifiers/swap/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/modifiers/swap/char.cc: ...here. * testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/modifiers/swap/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/operations/contains/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/contains/char.cc: ...here. * testsuite/21_strings/basic_string_view/operations/contains/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/contains/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/operations/data/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/data/char.cc: ...here. * testsuite/21_strings/basic_string_view/operations/data/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/data/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/operations/ends_with/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/ends_with/char.cc: ...here. * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/ends_with/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/operations/starts_with/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/starts_with/char.cc: ...here. * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/starts_with/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/operations/substr/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/substr/char.cc: ...here. * testsuite/21_strings/basic_string_view/operations/substr/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/operations/substr/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/range_access/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/range_access/char.cc: ...here. * testsuite/21_strings/basic_string_view/range_access/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/range_access/wchar_t.cc: ...here. * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char/1.cc: Moved to... * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char.cc: ...here. * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t/1.cc: Moved to... * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char16_t.cc: ...here. * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t/1.cc: Moved to... * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char32_t.cc: ...here. * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char8_t/1.cc: Moved to... * testsuite/21_strings/basic_string/requirements/explicit_instantiation/char8_t.cc: ...here. * testsuite/21_strings/basic_string/requirements/explicit_instantiation/1.cc: Moved to... * testsuite/21_strings/basic_string/requirements/explicit_instantiation/int.cc: ...here. * testsuite/21_strings/basic_string/requirements/explicit_instantiation/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string/requirements/explicit_instantiation/wchar_t.cc: ...here. * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char/1.cc: Moved to... * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char.cc: ...here. * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char16_t.cc: ...here. * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char32_t.cc: ...here. * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char8_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/char8_t.cc: ...here. * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/1.cc: Moved to... * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/int.cc: ...here. * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t/1.cc: Moved to... * testsuite/21_strings/basic_string_view/requirements/explicit_instantiation/wchar_t.cc: ...here. * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char/1.cc: Moved to... * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char.cc: ...here. * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t/1.cc: Moved to... * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char16_t.cc: ...here. * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t/1.cc: Moved to... * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char32_t.cc: ...here. * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char8_t/1.cc: Moved to... * testsuite/21_strings/char_traits/requirements/explicit_instantiation/char8_t.cc: ...here. * testsuite/21_strings/char_traits/requirements/explicit_instantiation/short/1.cc: Moved to... * testsuite/21_strings/char_traits/requirements/explicit_instantiation/short.cc: ...here. * testsuite/21_strings/char_traits/requirements/explicit_instantiation/wchar_t/1.cc: Moved to... * testsuite/21_strings/char_traits/requirements/explicit_instantiation/wchar_t.cc: ...here. 2022-05-26 Jonathan Wakely * testsuite/20_util/duration/requirements/explicit_instantiation/explicit_instantiation.cc: Moved to... * testsuite/20_util/duration/requirements/explicit_instantiation.cc: ...here. * testsuite/20_util/time_point/requirements/explicit_instantiation/explicit_instantiation.cc: Moved to... * testsuite/20_util/time_point/requirements/explicit_instantiation.cc: ...here. * testsuite/20_util/unique_ptr/requirements/explicit_instantiation/explicit_instantiation.cc: Moved to... * testsuite/20_util/unique_ptr/requirements/explicit_instantiation.cc: ...here. 2022-05-25 Jason Merrill * testsuite/20_util/function_objects/constexpr_searcher.cc: Add constexpr. 2022-05-20 Jonathan Wakely * testsuite/26_numerics/random/bernoulli_distribution/operators/values.cc: Run fewer iterations for simulator targets. * testsuite/26_numerics/random/binomial_distribution/operators/values.cc: Likewise. * testsuite/26_numerics/random/discrete_distribution/operators/values.cc: Likewise. * testsuite/26_numerics/random/geometric_distribution/operators/values.cc: Likewise. * testsuite/26_numerics/random/negative_binomial_distribution/operators/values.cc: Likewise. * testsuite/26_numerics/random/poisson_distribution/operators/values.cc: Likewise. * testsuite/26_numerics/random/uniform_int_distribution/operators/values.cc: Likewise. 2022-05-19 Jonathan Wakely * include/bits/char_traits.h: Only include when necessary. * include/std/stacktrace: Use __UINTPTR_TYPE__ instead of uintptr_t. * src/c++11/cow-stdexcept.cc: Include . * src/c++17/floating_to_chars.cc: Likewise. * testsuite/20_util/assume_aligned/1.cc: Include . * testsuite/20_util/assume_aligned/3.cc: Likewise. * testsuite/20_util/shared_ptr/creation/array.cc: Likewise. 2022-05-19 Jonathan Wakely * include/bits/basic_string.h: Do not include here. * include/bits/cow_string.h: Include it here. 2022-05-19 Jonathan Wakely * include/Makefile.am: Add new header. * include/Makefile.in: Regenerate. * include/bits/memory_resource.h: New file. * include/std/deque: Include . * include/std/forward_list: Likewise. * include/std/list: Likewise. * include/std/map: Likewise. * include/std/memory_resource (pmr::memory_resource): Move to new header. (pmr::polymorphic_allocator): Likewise. * include/std/regex: Likewise. * include/std/set: Likewise. * include/std/stacktrace: Likewise. * include/std/string: Likewise. * include/std/unordered_map: Likewise. * include/std/unordered_set: Likewise. * include/std/vector: Likewise. * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Remove header and check construction. * testsuite/23_containers/deque/types/pmr_typedefs.cc: Likewise. * testsuite/23_containers/forward_list/pmr_typedefs.cc: Likewise. * testsuite/23_containers/list/pmr_typedefs.cc: Likewise. * testsuite/23_containers/map/pmr_typedefs.cc: Likewise. * testsuite/23_containers/multimap/pmr_typedefs.cc: Likewise. * testsuite/23_containers/multiset/pmr_typedefs.cc: Likewise. * testsuite/23_containers/set/pmr_typedefs.cc: Likewise. * testsuite/23_containers/unordered_map/pmr_typedefs.cc: Likewise. * testsuite/23_containers/unordered_multimap/pmr_typedefs.cc: Likewise. * testsuite/23_containers/unordered_multiset/pmr_typedefs.cc: Likewise. * testsuite/23_containers/unordered_set/pmr_typedefs.cc: Likewise. * testsuite/23_containers/vector/pmr_typedefs.cc: Likewise. * testsuite/28_regex/match_results/pmr_typedefs.cc: Likewise. 2022-05-19 Jonathan Wakely * include/std/memory_resource (polymorphic_allocator): Add non-template equality operator, as proposed for LWG 3683. * testsuite/20_util/polymorphic_allocator/lwg3683.cc: New test. 2022-05-17 Jonathan Wakely * src/c++17/memory_resource.cc (set_default_resource): Use memory_order_acq_rel. (get_default_resource): Use memory_order_acquire. 2022-05-17 Jonathan Wakely * include/std/memory_resource (new_delete_resource): Add nodiscard, returns_nonnull and const attributes. (null_memory_resource): Likewise. (set_default_resource, get_default_resource): Add returns_nonnull attribute. (memory_resource::is_equal): Add nodiscard attribute. (operator==, operator!=): Likewise. 2022-05-17 Jonathan Wakely * include/bits/ios_base.h (io_category): Add const and nodiscard attributes. (make_error_code, make_error_condition): Add nodiscard. * include/std/future (future_category): Add const and nodiscard. (make_error_code, make_error_condition): Add nodiscard. * include/std/system_error (generic_category system_category): Add nodiscard. Replace _GLIBCXX_CONST with C++11 attribute. (error_code::value, error_code::category, error_code::operator bool) (error_condition::value, error_condition::category) (error_condition::operator bool, make_error_code) (make_error_condition, operator==, operator!=, operator<=>): Add nodiscard. 2022-05-17 Jonathan Wakely * testsuite/20_util/expected/synopsis.cc: Skip for versioned namespace. * testsuite/27_io/headers/iosfwd/synopsis.cc: Likewise. 2022-05-17 Jonathan Wakely * src/Makefile.am [ENABLE_SYMVERS_GNU_NAMESPACE] (cxx11_sources): Do not build the compatibility*-c++0x.cc objects. * src/Makefile.in: Regenerate. * src/c++11/compatibility-c++0x.cc [_GLIBCXX_INLINE_VERSION]: Refuse to build for the versioned namespace. * src/c++11/compatibility-chrono.cc: Likewise. * src/c++11/compatibility-condvar.cc: Likewise. * src/c++11/compatibility-thread-c++0x.cc: Likewise. * src/c++11/chrono.cc (system_clock, steady_clock): Use macros to define in inline namespace _V2, matching the declarations in . * src/c++11/system_error.cc (system_category, generic_category): Likewise. 2022-05-16 Jonathan Wakely * doc/xml/manual/prerequisites.xml: Fix attributes for external hyperlink. * doc/html/manual/setup.html: Regenerate. 2022-05-16 Jonathan Wakely * doc/xml/manual/status_cxx2023.xml: Update with gcc-12 support. * doc/html/*: Regenerate. 2022-05-16 Jonathan Wakely * doc/xml/manual/intro.xml: Include new chapter. * doc/xml/manual/status_cxx2020.xml: Tweak release numbers. * doc/xml/manual/status_cxx2023.xml: New file. * doc/html/*: Regenerate. 2022-05-16 Jonathan Wakely * doc/html/manual/status.html: Regenerate. * doc/xml/manual/status_cxx2020.xml: Fix supported version for C++20 bit operations. 2022-05-13 Jonathan Wakely * include/bits/std_thread.h (thread::_State, thread::_State_ptr): Declare as private unless _GLIBCXX_THREAD_IMPL is defined. * src/c++11/thread.cc (_GLIBCXX_THREAD_IMPL): Define. 2022-05-13 Jonathan Wakely * include/std/future (launch): Make operators noexcept. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (PREDEFINED): Replace __exception_ptr with "__unspecified__". * libsupc++/exception_ptr.h: Improve doxygen docs. (__exception_ptr::swap): Also declare in namespace std. 2022-05-13 Jonathan Wakely * libsupc++/nested_exception.h (throw_with_nested) [C++17]: Use if-constexpr instead of tag dispatching. (rethrow_if_nested) [C++17]: Likewise. (rethrow_if_nested) [!__cpp_rtti]: Do not use dynamic_cast if it would require RTTI. * testsuite/18_support/nested_exception/rethrow_if_nested-term.cc: New test. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (PREDEFINED): Define _GTHREAD_USE_MUTEX_TIMEDLOCK macro. * include/bits/std_mutex.h (mutex, lock_guard): Use @since and @headerfile. * include/bits/unique_lock.h (unique_lock): Likewise. * include/std/mutex (recursive_mutex, timed_mutex) (recursive_timed_mutex, scoped_lock): Likewise. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (PREDEFINED): Define _GLIBCXX23_CONSTEXPR macro. * include/backward/auto_ptr.h (auto_ptr): Use @deprecated. * include/bits/unique_ptr.h (default_delete): Use @since and @headerfile. * include/std/scoped_allocator: Remove @ingroup from @file block. 2022-05-13 Jonathan Wakely * include/bits/std_thread.h (thread, thread::id): Improve doxygen docs. * include/std/future: Likewise. * include/std/thread (jthread): Likewise. 2022-05-13 Jonathan Wakely * include/bits/ostream_insert.h: Mark helper functions as undocumented by Doxygen. * include/bits/stl_algo.h: Use markdown for formatting and mark helper functions as undocumented. * include/bits/stl_numeric.h: Likewise. * include/bits/stl_pair.h (pair): Add @headerfile. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (PREDEFINED): Define __allocator_base so that Doxygen shows the right base-class for std::allocator. * include/bits/alloc_traits.h: Improve doxygen docs. * include/bits/allocator.h: Likewise. * include/bits/new_allocator.h: Likewise. * include/ext/new_allocator.h: Likewise. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (PREDEFINED): Define macro _GLIBCXX_DOXYGEN_ONLY to expand its argument. * include/bits/c++config (_GLIBCXX_DOXYGEN_ONLY): Define. * include/bits/regex.h: Improve doxygen docs. * include/bits/regex_constants.h: Likewise. * include/bits/regex_error.h: Likewise. 2022-05-13 Jonathan Wakely * include/std/atomic: Suppress doxygen docs for implementation details. * include/bits/atomic_base.h: Likewise. * include/bits/shared_ptr_atomic.h: Use markdown. Fix grouping so that std::atomic is not added to the pointer abstractions group. 2022-05-13 Jonathan Wakely * include/std/system_error: Improve doxygen comments. 2022-05-13 Jonathan Wakely * include/bits/ptr_traits.h: Add some doxygen comments. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (PREDEFINED): Expand new macros to nothing. * include/bits/c++config (_GLIBCXX_BEGIN_INLINE_ABI_NAMESPACE) (_GLIBCXX_END_INLINE_ABI_NAMESPACE): Define new macros. * include/bits/algorithmfwd.h (_V2::__rotate): Use new macros for the namespace. * include/bits/chrono.h (chrono::_V2::system_clock): Likewise. * include/bits/stl_algo.h (_V2::__rotate): Likewise. * include/std/condition_variable (_V2::condition_variable_any): Likewise. * include/std/system_error (_V2::error_category): Likewise. 2022-05-13 Jonathan Wakely * include/bits/mofunc_impl.h: Fix doxygen command. 2022-05-13 Jonathan Wakely * doc/doxygen/user.cfg.in (GROUP_NESTED_COMPOUNDS): Set to NO. (CLASS_DIAGRAMS): Remove obsolete option. 2022-05-12 Jonathan Wakely * config/locale/dragonfly/numeric_members.cc: Remove whitespace. * config/locale/gnu/numeric_members.cc: Likewise. * include/bits/locale_facets_nonio.h: Likewise. * libsupc++/typeinfo: Likewise. 2022-05-10 Jonathan Wakely PR libstdc++/105284 * include/std/iosfwd: Add declarations for class templates and typedefs. * include/std/spanstream (basic_spanbuf, basic_ispanstream) (basic_ospanstream, basic_spanstream): Remove default template arguments. * testsuite/27_io/headers/iosfwd/synopsis.cc: Add declarations. * testsuite/27_io/headers/iosfwd/types.cc: Check default arguments. 2022-05-10 Jonathan Wakely PR libstdc++/105284 * include/std/iosfwd: Add declarations for class templates and typedefs. * include/std/syncstream (basic_syncbuf, basic_osyncstream): Remove default template arguments. * testsuite/27_io/headers/iosfwd/synopsis.cc: New test. * testsuite/27_io/headers/iosfwd/types.cc: New test. 2022-05-06 Jonathan Wakely * include/bits/random.tcc (operator==): Only check normal_distribution::_M_saved_available once. * testsuite/26_numerics/random/normal_distribution/operators/equal.cc: Check equality after state changes. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error lineno. 2022-05-06 Jonathan Wakely PR libstdc++/105502 * include/bits/random.tcc (operator>>(basic_istream&, normal_distribution&)): Update state when __state_avail is false. * testsuite/26_numerics/random/normal_distribution/operators/serialize.cc: Check that deserialized object equals serialized one. 2022-05-06 Alexandre Oliva * include/experimental/bits/simd.h [__ALTIVEC__]: Require VSX for double, long long, and 64-bit long intrinsic types. [__ALTIVEC__] (__intrinsic_type): Mention 128-bit in preexisting long double diagnostic, adjust no-VSX double diagnostic to cover 64-bit long double as well. 2022-05-06 Jonathan Wakely PR libstdc++/104731 * testsuite/27_io/filesystem/iterators/error_reporting.cc: Use a trailing char array as storage for dirent::d_name. 2022-05-06 Jonathan Wakely * include/std/stacktrace: Do not include . (__cxa_demangle): Declare. 2022-05-06 Jonathan Wakely PR libstdc++/99871 * include/bits/specfun.h: Use visibility attribute on namespace, instead of pragma push/pop. * libsupc++/compare: Likewise. * libsupc++/exception: Likewise. * libsupc++/exception.h: Likewise. * libsupc++/exception_ptr.h: Likewise. * libsupc++/initializer_list: Likewise. * libsupc++/nested_exception.h: Likewise. 2022-05-06 Jonathan Wakely * doc/xml/manual/test.xml: Remove requirement for copyright and GPL notice in tests. * doc/html/manual/test.html: Regenerate. 2022-05-05 Jonathan Wakely * include/experimental/memory_resource [!__cpp_rtti] (__resource_adaptor_imp::do_is_equal): Do not use dynamic_cast when RTTI is disabled. * testsuite/17_intro/freestanding.cc: Require RTTI. * testsuite/18_support/exception/38732.cc: Likewise. * testsuite/18_support/exception_ptr/rethrow_exception.cc: Likewise. * testsuite/18_support/nested_exception/68139.cc: Likewise. * testsuite/18_support/nested_exception/rethrow_if_nested.cc: Likewise. * testsuite/18_support/type_info/103240.cc: Likewise. * testsuite/18_support/type_info/fundamental.cc: Likewise. * testsuite/18_support/type_info/hash_code.cc: Likewise. * testsuite/20_util/any/assign/emplace.cc: Likewise. * testsuite/20_util/any/cons/in_place.cc: Likewise. * testsuite/20_util/any/misc/any_cast.cc: Likewise. * testsuite/20_util/any/observers/type.cc: Likewise. * testsuite/20_util/function/1.cc: Likewise. * testsuite/20_util/function/2.cc: Likewise. * testsuite/20_util/function/3.cc: Likewise. * testsuite/20_util/function/4.cc: Likewise. * testsuite/20_util/function/5.cc: Likewise. * testsuite/20_util/function/6.cc: Likewise. * testsuite/20_util/function/7.cc: Likewise. * testsuite/20_util/function/8.cc: Likewise. * testsuite/20_util/polymorphic_allocator/resource.cc: Likewise. * testsuite/20_util/shared_ptr/casts/1.cc: Likewise. * testsuite/20_util/shared_ptr/casts/rval.cc: Likewise. * testsuite/20_util/shared_ptr/cons/unique_ptr_deleter_ref_2.cc: Likewise. * testsuite/20_util/shared_ptr/misc/get_deleter.cc: Likewise. * testsuite/20_util/typeindex/comparison_operators.cc: Likewise. * testsuite/20_util/typeindex/comparison_operators_c++20.cc: Likewise. * testsuite/20_util/typeindex/hash.cc: Likewise. * testsuite/20_util/typeindex/hash_code.cc: Likewise. * testsuite/20_util/typeindex/name.cc: Likewise. * testsuite/22_locale/ctype/is/string/89728_neg.cc: Likewise. * testsuite/22_locale/global_templates/standard_facet_hierarchies.cc: Likewise. * testsuite/22_locale/global_templates/user_facet_hierarchies.cc: Likewise. * testsuite/22_locale/locale/13630.cc: Check type without using RTTI. * testsuite/23_containers/array/requirements/non_default_constructible.cc: Require RTTI. * testsuite/27_io/basic_ostream/emit/1.cc: Likewise. * testsuite/27_io/fpos/14320-1.cc: Check type without using RTTI. * testsuite/27_io/fpos/mbstate_t/12065.cc: Require RTTI. * testsuite/27_io/ios_base/failure/dual_abi.cc: Likewise. * testsuite/experimental/any/misc/any_cast.cc: Likewise. * testsuite/experimental/any/observers/type.cc: Likewise. * testsuite/experimental/memory_resource/resource_adaptor.cc: Likewise. * testsuite/lib/libstdc++.exp (check_effective_target_rtti): Define new proc. * testsuite/tr1/3_function_objects/function/1.cc: Likewise. * testsuite/tr1/3_function_objects/function/2.cc: Likewise. * testsuite/tr1/3_function_objects/function/3.cc: Likewise. * testsuite/tr1/3_function_objects/function/4.cc: Likewise. * testsuite/tr1/3_function_objects/function/5.cc: Likewise. * testsuite/tr1/3_function_objects/function/6.cc: Likewise. * testsuite/tr1/3_function_objects/function/7.cc: Likewise. * testsuite/tr1/3_function_objects/function/8.cc: Likewise. * testsuite/tr2/bases/value.cc: Likewise. * testsuite/tr2/direct_bases/value.cc: Likewise. * testsuite/util/exception/safety.h [!__cpp_rtti]: Don't print types without RTTI. 2022-05-04 Jonathan Wakely PR libstdc++/104719 * include/std/array (array::size(), array::max_size()) (array::empty(), array::data()): Add always_inline attribute. 2022-05-04 Jonathan Wakely PR libstdc++/104719 * include/std/array (__array_traits::_S_ref): Remove. (__array_traits::_S_ptr): Remove. (__array_traits::_Type): Define operator[] and operator T* to provide an array-like API. (array::_AT_Type): Remove public typeef. (array::operator[], array::at, array::front, array::back): Use index operator to access _M_elems instead of _S_ref. (array::data): Use implicit conversion from _M_elems to pointer. (swap(array&, array&)): Use __enable_if_t helper. (get): Use index operator to access _M_elems. * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust dg-error line numbers. 2022-05-03 Alexandre Oliva PR c++/105324 * testsuite/20_util/from_chars/pr105324.cc: Guard test body with conditional for floating-point overloads of from_char. 2022-05-02 Patrick Palka PR libstdc++/103911 * src/c++17/floating_from_chars.cc (find_end_of_float): Accept two delimeters for the exponent part in the form of a possibly NULL string of length two. Don't use std::tolower. (pattern): Adjust calls to find_end_of_float accordingly. 2022-05-02 Patrick Palka PR libstdc++/105441 * src/c++17/floating_from_chars.cc (__floating_from_chars_hex): Also accept 'P' as the start of the exponent. * testsuite/20_util/from_chars/7.cc: Add corresponding testcase. 2022-04-29 Jonathan Wakely PR libstdc++/105417 * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Regenerate. * src/c++11/compatibility-ldbl-alt128.cc [_GLIBCXX_USE_DUAL_ABI]: Define __gnu_ieee128::num_get::_M_extract_int[abi:cxx11] symbols as aliases for corresponding symbols without abi-tag. 2022-04-29 Rainer Orth * config/abi/post/i386-solaris/baseline_symbols.txt: Regenerate. * config/abi/post/i386-solaris/amd64/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris/sparcv9/baseline_symbols.txt: Likewise. 2022-04-28 Jonathan Wakely PR libstdc++/99290 * src/c++17/fs_ops.cc (fs::copy): Pass error_code to directory_iterator constructor, and check on each iteration. * src/filesystem/ops.cc (fs::copy): Likewise. * testsuite/27_io/filesystem/operations/copy.cc: Check for errors during recursion. * testsuite/experimental/filesystem/operations/copy.cc: Likewise. 2022-04-28 François Dumont * config/abi/pre/gnu-versioned-namespace.ver: Remove std::random_device::* pattern. 2022-04-27 Jakub Jelinek * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update. * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/aarch64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/s390x-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update. 2022-04-27 Jonathan Wakely * python/libstdcxx/v6/printers.py (SharedPointerPrinter): Add support for atomic> and atomic>. (StdAtomicPrinter): New printer. (build_libstdcxx_dictionary): Register new printer. * testsuite/libstdc++-prettyprinters/cxx11.cc: Test std::atomic. * testsuite/libstdc++-prettyprinters/cxx20.cc: Test atomic smart pointers. 2022-04-26 Jonathan Wakely * include/bits/shared_ptr_atomic.h (atomic): Add constructor for constant initialization from nullptr_t. * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc: Check for new constructor. 2022-04-26 Jonathan Wakely * include/bits/fs_path.h (hash): Define. * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Check std::hash specialization. 2022-04-25 Jonathan Wakely * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define conditionally. * include/bits/unique_ptr.h (__cpp_lib_constexpr_memory): Define for C++23. (default_delete, default_delete, __uniq_ptr_impl) (unique_ptr, unique_ptr): Add constexpr to all member functions. * include/std/version (__cpp_lib_constexpr_memory): Define new value for C++23. * testsuite/20_util/unique_ptr/assign/constexpr.cc: New test. * testsuite/20_util/unique_ptr/comparison/constexpr.cc: New test. * testsuite/20_util/unique_ptr/cons/constexpr_c++20.cc: New test. * testsuite/20_util/unique_ptr/creation/constexpr.cc: New test. * testsuite/20_util/unique_ptr/modifiers/constexpr.cc: New test. * testsuite/20_util/unique_ptr/specialized_algorithms/constexpr.cc: New test. 2022-04-25 Jonathan Wakely PR libstdc++/105375 * include/std/future (packaged_task): Add deduction guides. * testsuite/30_threads/packaged_task/cons/deduction.cc: New test. 2022-04-25 Philipp Fent * python/libstdcxx/v6/printers.py (StdSpanPrinter._iterator): Rename as iterator. (StdInitializerListPrinter): Define new printer. (build_libstdcxx_dictionary): Register new printer. * testsuite/libstdc++-prettyprinters/cxx11.cc: Check printer for initializer_list. 2022-04-22 Thomas W Rodgers PR libstdc++/102994 * include/bits/atomic_base.h (atomic_flag::notify_one, notify_all): Remove const qualification. (__atomic_base::notify_one, notify_all): Likewise. * include/std/atomic (atomic::notify_one, notify_all): Likewise. (atomic::notify_one, notify_all): Likewise. (atomic::notify_one, notify_all): Likewise. (atomic_notify_one, atomic_notify_all): Likewise. * testsuite/29_atomics/atomic/wait_notify/102994.cc: Adjust test to account for change in notify_one/notify_all signature. 2022-04-21 Patrick Palka * include/std/charconv (__from_chars_alnum_to_val_table): Simplify initialization of __lower/__upper_letters. (__from_chars_alnum_to_val): Default the template parameter to false. * src/c++17/floating_from_chars.cc (starts_with_ci): Don't assume the uppercase and lowercase letters are contiguous. (__floating_from_chars_hex): Likewise. 2022-04-21 Patrick Palka PR c++/105297 PR c++/105322 * include/std/charconv (__from_chars_alnum_to_val): Make initializer for __table dependent in an artificial way. 2022-04-21 Jonathan Wakely PR libstdc++/105324 * src/c++17/floating_from_chars.cc (buffer_resource::do_allocate): Remove assertion. * testsuite/20_util/from_chars/pr105324.cc: New test. 2022-04-20 Jonathan Wakely * testsuite/21_strings/basic_string_view/operations/copy/char/constexpr.cc: Check correct feature test macro. 2022-04-20 Jonathan Wakely PR libstdc++/93602 * doc/xml/manual/prerequisites.xml: Document libiconv workarounds. * doc/html/manual/setup.html: Regenerate. * src/Makefile.am (CXXLINK): Add $(LTLIBICONV). * src/Makefile.in: Regenerate. 2022-04-19 Patrick Palka * src/c++17/floating_to_chars.cc (_GLIBCXX_ASSERTIONS): Don't define. (__floating_to_chars_shortest): Add __builtin_unreachable calls to squelch false-positive -Wmaybe-uninitialized and -Wreturn-type warnings. (__floating_to_chars_precision): Likewise. 2022-04-19 Philipp Fent * python/libstdcxx/v6/printers.py (StdSpanPrinter): Define. * testsuite/libstdc++-prettyprinters/cxx20.cc: Test it. 2022-04-19 Jonathan Wakely * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Fix shell operators. * configure: Regenerate. 2022-04-18 Patrick Palka * include/std/charconv (__from_chars_pow2_base): Manually unroll the first iteration of the main loop and simplify accordingly. 2022-04-15 Patrick Palka PR libstdc++/104858 * include/bits/ranges_algo.h (__minmax_fn): Avoid dereferencing __first twice at the start. * testsuite/25_algorithms/minmax/constrained.cc (test06): New test. 2022-04-15 Patrick Palka * include/std/charconv (__from_chars_alnum_to_val_table): Define. (__from_chars_alnum_to_val): Define. (__from_chars_binary): Rename to ... (__from_chars_pow2_base): ... this. Generalize to handle any power-of-two base using __from_chars_alnum_to_val. (__from_chars_digit): Optimize digit recognition to a single test instead of two tests. Use [[__unlikely___]] attribute. (__from_chars_alpha_to_num): Remove. (__from_chars_alnum): Use __from_chars_alnum_to_val. Use a nested loop for the overflow case. Maintain a lower bound on the number of available bits in the result and use it to omit the overflow check. (from_chars): Adjust appropriately. * src/c++17/floating_from_chars.cc (ascii_to_hexit): Remove. (__floating_from_chars_hex): Use __from_chars_alnum_to_val to recognize a hex digit instead. 2022-04-14 Palmer Dabbelt * acinclude.m4 (GLIBCXX_ENABLE_LOCK_POLICY): Force auto to mutex for RISC-V. * configure: Regenerate. 2022-04-14 Jonathan Wakely * doc/xml/manual/intro.xml: Fix comment. 2022-04-14 Jonathan Wakely * include/precompiled/stdc++.h: Include and for C++23. 2022-04-14 Jonathan Wakely PR libstdc++/105269 * include/bits/stl_vector.h (__cpp_lib_constexpr_vector): Define. * include/c_compatibility/stdatomic.h (__cpp_lib_stdatomic_h): Define. * include/std/optional (__cpp_lib_optional): Define new value for C++23. (__cpp_lib_monadic_optional): Remove. * include/std/version (__cpp_lib_constexpr_vector): Define. (__cpp_lib_stdatomic_h): Define. (__cpp_lib_optional): Define new value for C++23. (__cpp_lib_monadic_optional): Remove. * testsuite/20_util/optional/monadic/and_then.cc: Adjust. * testsuite/20_util/optional/requirements.cc: Adjust for C++23. * testsuite/20_util/optional/version.cc: Likewise. * testsuite/23_containers/vector/cons/constexpr.cc: Check feature test macro. * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Likewise. * testsuite/20_util/optional/monadic/version.cc: Removed. * testsuite/23_containers/vector/requirements/version.cc: New test. * testsuite/29_atomics/headers/stdatomic.h/version.cc: New test. 2022-04-12 Jonathan Wakely * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Check for mmap. * config.h.in: Regenerate. * configure: Regenerate. 2022-04-12 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::current): Reallocate a smaller container if the unused capacity is larger than the used size. 2022-04-12 Jonathan Wakely * include/std/stacktrace (basic_stacktrace): Use _Impl::_M_clone or _Impl::_M_assign to initialize elements in allocated storage. (basic_stacktrace::_M_clear()): Use _Impl::_M_resize instead of _Impl::_M_destroy. (basic_stacktrace::_Impl::_M_destroy()): Replace with ... (basic_stacktrace::_Impl::_M_resize(size_type, allocator&)): New function. (basic_stacktrace::_Impl::_M_push_back): Use _M_xclone. Construct new element using allocator. (basic_stacktrace::_Impl::_M_clone): New function. (basic_stacktrace::_Impl::_M_xclone): New function. (basic_stacktrace::_Impl::_M_assign): New function. 2022-04-12 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::_Impl::_M_allocate): Use nothrow new instead of try block for std::allocator. (basic_stacktrace::_Impl::_M_deallocate): Use delete for std::allocator. 2022-04-12 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::current): Replace calls to _M_reserve and _S_curr_cb with call to _M_prepare. Check return value of backtrace_simple when max depth given. (basic_stacktrace::_M_reserve): Remove. (basic_stacktrace::_S_curr_cb): Remove. (basic_stacktrace::_M_prepare(size_type)): New function to reserve initial capacity and return callback. (basic_stacktrace::_Impl::_M_allocate): Remove check for 0 < n and remove redundant zeroing of _M_frames and _M_capacity. (basic_stacktrace::_Impl::_M_push_back): Add [[unlikely]] attribute. Assign _Impl instead of swapping. * testsuite/19_diagnostics/stacktrace/current.cc: New test. 2022-04-11 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::_Impl::_M_allocate): Change [[unlikely]] attribute to [[likely]]. 2022-04-11 Jonathan Wakely PR libstdc++/105031 * include/std/stacktrace (basic_stacktrace::basic_stacktrace): Fix allocator usage in constructors. (basic_stacktrace::operator=(const basic_stacktrace&)): Do not try to reallocate using const allocator. (basic_stacktrace::operator=(basic_stacktrace&&)): Fix if-constexpr with non-constant condition. Do not allocate new storage if allocator propagates. Do not set _M_size if allocation fails. (basic_stacktrace::swap(basic_stacktrace&)): Fix typo. Add assertion that non-propagating allocators are equal. * testsuite/19_diagnostics/stacktrace/stacktrace.cc: New test. 2022-04-11 Jonathan Wakely * include/std/stacktrace (basic_stacktrace::current): Duplicate implementation into each overload. Add noinline attribute and skip current frame. (basic_stacktrace::max_size()): Call _Impl::_S_max_size. (basic_stacktrace::_S_curr_cb()): New function defining lambda. (basic_stacktrace::_Impl::_S_max_size): New function defining maximum size in terms of allocator and size_type. (basic_stacktrace::_Impl::_M_allocate): Check against max_size(). * testsuite/19_diagnostics/stacktrace/entry.cc: Call function for non-constexpr checks. Check line number is correct. 2022-04-11 Jonathan Wakely * testsuite/20_util/stacktrace/entry.cc: Moved to... * testsuite/19_diagnostics/stacktrace/entry.cc: ...here. * testsuite/20_util/stacktrace/synopsis.cc: Moved to... * testsuite/19_diagnostics/stacktrace/synopsis.cc: ...here. * testsuite/20_util/stacktrace/version.cc: Moved to... * testsuite/19_diagnostics/stacktrace/version.cc: ...here. 2022-04-11 Jonathan Wakely * include/experimental/bits/fs_path.h (path): Define special members after path::_Cmpt is complete. 2022-04-08 Jonathan Wakely PR libstdc++/105153 * include/std/expected (expected::expected(expected&&)): Fix constraints. * testsuite/20_util/expected/cons.cc: Check constructor. 2022-04-08 Jonathan Wakely PR libstdc++/105154 * include/std/expected (expected::swap): Set _M_has_value to false for objects that previously had a value. * testsuite/20_util/expected/swap.cc: Fix test to check void specialization. 2022-04-08 Jonathan Wakely PR libstdc++/105146 * include/std/expected (bad_expected_access): Move constructor parameter. * testsuite/20_util/expected/bad.cc: New test. 2022-04-07 Hans-Peter Nilsson * testsuite/20_util/expected/requirements.cc: Correct minimal-size test. 2022-04-02 Jakub Jelinek PR libstdc++/105128 * include/std/source_location (std::source_location::__impl): Move definition before using __builtin_ret_type. 2022-04-01 Jonathan Wakely * include/std/utility (unreachable): Define for C++23. * include/std/version (__cpp_lib_unreachable): Define. * src/c++11/debug.cc (__glibcxx_assert_fail): Check for valid arguments. Handle only the function being given. * testsuite/20_util/unreachable/1.cc: New test. * testsuite/20_util/unreachable/version.cc: New test. 2022-04-01 Jonathan Wakely * include/experimental/bits/fs_fwd.h (copy_file): Remove incorrect noexcept from declaration. * include/experimental/bits/fs_path.h (path::begin, path::end): Add noexcept to declarations, to match definitions. 2022-04-01 Timm Bäder * include/bits/fs_ops.h: Fix filename in Doxygen comment. * include/experimental/bits/fs_ops.h: Likewise. 2022-03-31 Jonathan Wakely * libsupc++/new_opa.cc (aligned_alloc): Add comment. 2022-03-29 Jonathan Wakely * testsuite/18_support/exception/38732.cc: Disable for C++23. * testsuite/18_support/headers/exception/synopsis.cc: Likewise. * testsuite/18_support/unexpected_handler.cc: Likewise. 2022-03-29 Jonathan Wakely * libsupc++/compare (_Strong_order) [!__cpp_using_enum]: Add static data members for _Fp_fmt enumerators. 2022-03-29 Jonathan Wakely * include/std/version (__cpp_lib_variant): Fix conditions to match . (__cpp_lib_expected): Fix condition to match . 2022-03-28 Jonathan Wakely * testsuite/20_util/optional/monadic/and_then.cc: Fix typo. * testsuite/20_util/optional/monadic/transform.cc: Likewise. * testsuite/22_locale/codecvt/always_noconv/char/1.cc: Likewise. * testsuite/22_locale/codecvt/encoding/char/1.cc: Likewise. * testsuite/22_locale/codecvt/in/char/1.cc: Likewise. * testsuite/22_locale/codecvt/max_length/char/1.cc: Likewise. * testsuite/22_locale/codecvt/out/char/1.cc: Likewise. * testsuite/22_locale/codecvt/unshift/char/1.cc: Likewise. 2022-03-27 Jonathan Wakely * doc/doxygen/user.cfg.in: Add new header. * include/Makefile.am: Likewise. * include/Makefile.in: Regenerate. * include/precompiled/stdc++.h: Add new header. * include/std/version (__cpp_lib_expected): Define. * libsupc++/exception [__cplusplus > 202002] (unexpected) (unexpected_handler, set_unexpected): Do not declare for C++23. * include/std/expected: New file. * testsuite/20_util/expected/assign.cc: New test. * testsuite/20_util/expected/cons.cc: New test. * testsuite/20_util/expected/illformed_neg.cc: New test. * testsuite/20_util/expected/observers.cc: New test. * testsuite/20_util/expected/requirements.cc: New test. * testsuite/20_util/expected/swap.cc: New test. * testsuite/20_util/expected/synopsis.cc: New test. * testsuite/20_util/expected/unexpected.cc: New test. * testsuite/20_util/expected/version.cc: New test. 2022-03-25 Jonathan Wakely * include/std/bit (bit_cast, byteswap, endian): Add doxygen comments. 2022-03-23 Jonathan Wakely PR libstdc++/105027 * include/std/bit (bit_cast): Add constraints. * testsuite/26_numerics/bit/bit.cast/105027.cc: New test. 2022-03-23 Jonathan Wakely * include/std/version [!_GLIBCXX_HOSTED] (__cpp_lib_hardware_interference_size): Define for freestanding. (__cpp_lib_bit_cast): Likewise. (__cpp_lib_is_layout_compatible): Likewise. (__cpp_lib_is_pointer_interconvertible): Likewise. (__cpp_lib_adaptor_iterator_pair_constructor): Do not define for freestanding. (__cpp_lib_invoke_r): Likewise. (__cpp_lib_ios_noreplace): Likewise. (__cpp_lib_monadic_optional): Likewise. (__cpp_lib_move_only_function): Likewise. (__cpp_lib_spanstream): Likewise. (__cpp_lib_stacktrace): Likewise. (__cpp_lib_string_contains): Likewise. (__cpp_lib_string_resize_and_overwrite): Likewise. (__cpp_lib_to_underlying): Likewise. 2022-03-23 Jonathan Wakely PR libstdc++/105021 * include/bits/atomic_base.h [!_GLIBCXX_HOSTED]: Do not include for freestanding. 2022-03-22 Hans-Peter Nilsson * testsuite/20_util/from_chars/6.cc (test01) [FE_DOWNWARD]: Conditionalize call to fesetround. 2022-03-21 Jakub Jelinek PR libstdc++/104990 * include/bits/locale_facets_nonio.tcc (get): Don't check if do_get isn't overloaded if __clang__ is defined. 2022-03-18 Jonathan Wakely PR libstdc++/104242 * include/std/any (any(T&&)): Revert change to constraints. * testsuite/20_util/any/cons/104242.cc: New test. 2022-03-18 Jonathan Wakely PR libstdc++/92546 * include/pstl/glue_algorithm_defs.h: Replace with . * include/pstl/utils.h: Replace with . (__pstl::__internal::__except_handler): Use std::__terminate instead of std::terminate. * src/c++17/fs_path.cc: Include . * testsuite/25_algorithms/adjacent_find/constexpr.cc: Include . * testsuite/25_algorithms/binary_search/constexpr.cc: Likewise. * testsuite/25_algorithms/clamp/constrained.cc: Likewise. * testsuite/25_algorithms/equal/constrained.cc: Likewise. * testsuite/25_algorithms/for_each/constrained.cc: Likewise. * testsuite/25_algorithms/includes/constrained.cc: Likewise. * testsuite/25_algorithms/is_heap/constexpr.cc: Likewise. * testsuite/25_algorithms/is_heap_until/constexpr.cc: Likewise. * testsuite/25_algorithms/is_permutation/constrained.cc: Include . * testsuite/25_algorithms/is_sorted/constexpr.cc: Include . * testsuite/25_algorithms/is_sorted_until/constexpr.cc: Likewise. * testsuite/25_algorithms/lexicographical_compare/constexpr.cc: Likewise. * testsuite/25_algorithms/lexicographical_compare/constrained.cc: Likewise. * testsuite/25_algorithms/lexicographical_compare_three_way/1.cc: Include . * testsuite/25_algorithms/lower_bound/constexpr.cc: Include . * testsuite/25_algorithms/max/constrained.cc: Likewise. * testsuite/25_algorithms/max_element/constrained.cc: Likewise. * testsuite/25_algorithms/min/constrained.cc: Likewise. * testsuite/25_algorithms/min_element/constrained.cc: Likewise. * testsuite/25_algorithms/minmax_element/constrained.cc: Likewise. * testsuite/25_algorithms/mismatch/constexpr.cc: Likewise. * testsuite/25_algorithms/move/93872.cc: Likewise. * testsuite/25_algorithms/move_backward/93872.cc: Include . * testsuite/25_algorithms/nth_element/constexpr.cc: Include . * testsuite/25_algorithms/partial_sort/constexpr.cc: Likewise. * testsuite/25_algorithms/partial_sort_copy/constexpr.cc: Likewise. * testsuite/25_algorithms/search/constexpr.cc: Likewise. * testsuite/25_algorithms/search_n/constrained.cc: Likewise. * testsuite/25_algorithms/set_difference/constexpr.cc: Likewise. * testsuite/25_algorithms/set_difference/constrained.cc: Likewise. * testsuite/25_algorithms/set_intersection/constexpr.cc: Likewise. * testsuite/25_algorithms/set_intersection/constrained.cc: Likewise. * testsuite/25_algorithms/set_symmetric_difference/constexpr.cc: Likewise. * testsuite/25_algorithms/set_union/constexpr.cc: Likewise. * testsuite/25_algorithms/set_union/constrained.cc: Likewise. * testsuite/25_algorithms/sort/constexpr.cc: Likewise. * testsuite/25_algorithms/sort_heap/constexpr.cc: Likewise. * testsuite/25_algorithms/transform/constrained.cc: Likewise. * testsuite/25_algorithms/unique/constexpr.cc: Likewise. * testsuite/25_algorithms/unique/constrained.cc: Likewise. * testsuite/25_algorithms/unique_copy/constexpr.cc: Likewise. * testsuite/25_algorithms/upper_bound/constexpr.cc: Likewise. * testsuite/std/ranges/adaptors/elements.cc: Include . * testsuite/std/ranges/adaptors/lazy_split.cc: Likewise. * testsuite/std/ranges/adaptors/split.cc: Likewise. 2022-03-17 Jonathan Wakely PR libstdc++/92546 * include/bits/fs_path.h (path::make_preferred): Use handwritten loop instead of std::replace. 2022-03-17 Jonathan Wakely PR middle-end/104966 * include/bits/locale_facets_nonio.tcc (__moneypunct_cache::_M_cache): Replace try-catch with RAII and make all string copies before any stores to *this. 2022-03-17 Jonathan Wakely * testsuite/util/testsuite_character.h: Fix comment. 2022-03-16 Jonathan Wakely PR libstdc++/103407 * config/abi/pre/gnu.ver: Make version for std::from_chars depend on HAVE_USELOCALE macro. * testsuite/util/testsuite_abi.cc (compare_symbols): Treat std::from_chars for floating-point types as undesignated if not found in the baseline symbols file. 2022-03-16 Jonathan Wakely * include/std/charconv (__cpp_lib_to_chars): Only define when both from_chars and to_chars are supported for floating-point types. (from_chars, to_chars): Adjust preprocessor conditions guarding declarations. * include/std/version (__cpp_lib_to_chars): Adjust condition to match definition. * src/c++17/floating_from_chars.cc (from_chars_strtod): New function template. (from_chars): Simplify preprocessor checks and use from_chars_strtod when appropriate. 2022-03-14 Jonathan Wakely PR libstdc++/104875 * src/c++11/codecvt.cc (read_utf8_code_point): Use char32_t to hold octets that will be left-shifted. 2022-03-10 Jonathan Wakely PR libstdc++/104870 * src/c++17/floating_from_chars.cc: Check __SIZE_WIDTH__ >= 32 before using fast_float. 2022-03-10 Detlef Vollmann PR libstdc++/104866 * include/bits/this_thread_sleep.h: Fix order of #endif and closing brace of namespace. 2022-03-10 Jonathan Wakely * libsupc++/compare (_Strong_order::_S_fp_cmp) [__vax__]: Handle NaN. 2022-03-10 Jonathan Wakely * libsupc++/compare (_Strong_ordering::_S_fp_cmp) [__vax__]: Use <=> comparison. 2022-03-09 Patrick Palka PR libstdc++/104859 * src/c++17/floating_to_chars.cc (__floating_to_chars_hex): Be explicit when narrowing the shifted effective_mantissa, since it may have an integer-class type. 2022-03-08 Jonathan Wakely * include/bits/uses_allocator_args.h: Remove incorrect copyright notice. 2022-03-07 Jonathan Wakely PR libstdc++/104807 * include/bits/c++config (__terminate, __glibcxx_assert_fail): Replace _GLIBCXX_VISIBILITY on function with visibility pragma. (__is_constant_evaluated): Add visibility pragma. 2022-03-07 Rasmus Villemoes * config/locale/vxworks/ctype_members.cc: Remove include. 2022-03-05 Jonathan Wakely * include/bits/c++config (__glibcxx_assert_fail): Add visibility attribute. (__terminate): Likewise. 2022-03-04 Jonathan Wakely * libsupc++/compare (strong_order::_S_fp_cmp): Move typedef inside #if condition. 2022-03-03 Jonathan Wakely PR libstdc++/104748 * testsuite/std/ranges/adaptors/all.cc: Use non-debug vector for constexpr test. 2022-03-03 Jonathan Wakely * testsuite/17_intro/names.cc (func): Undef on AIX. 2022-03-03 Jonathan Wakely PR libstdc++/96526 * libsupc++/compare (strong_order): Add missing support for floating-point types. * testsuite/18_support/comparisons/algorithms/strong_order_floats.cc: New test. 2022-03-01 Jonathan Wakely PR middle-end/103984 * include/bits/regex_compiler.h (_BracketMatcher::_M_char): Use default member initializer. 2022-02-24 Jonathan Wakely PR libstdc++/104602 * include/std/source_location (source_location::current): Use deduced type of __builtin_source_location(). 2022-02-22 Patrick Palka * include/bits/ranges_base.h (__detail::__is_initializer_list): Define. (viewable_range): Adjust as per P2415R2. * include/bits/ranges_cmp.h (__cpp_lib_ranges): Adjust value. * include/std/ranges (owning_view): Define as per P2415R2. (enable_borrowed_range): Likewise. (views::__detail::__can_subrange): Replace with ... (views::__detail::__can_owning_view): ... this. (views::_All::_S_noexcept): Sync with operator(). (views::_All::operator()): Use owning_view instead of subrange as per P2415R2. * include/std/version (__cpp_lib_ranges): Adjust value. * testsuite/std/ranges/adaptors/all.cc (test06): Adjust now that views::all uses owning_view instead of subrange. (test08): New test. * testsuite/std/ranges/adaptors/lazy_split.cc (test09): Adjust now that rvalue non-view non-borrowed ranges are viewable. * testsuite/std/ranges/adaptors/split.cc (test06): Likewise. 2022-02-17 Jonathan Wakely PR libstdc++/104559 * doc/xml/manual/evolution.xml: Document deprecation. * doc/html/manual/api.html: Regenerate. * include/bits/stl_bvector.h (insert(const_iterator, const bool&)): Remove default argument. (insert(const_iterator)): New overload with deprecated attribute. * testsuite/23_containers/vector/bool/modifiers/insert/104559.cc: New test. 2022-02-17 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Replace code that call cat->name() on std::error_category objects. Identify known categories by symbol name and use a hardcoded name. Print error code values as enumerators where appopriate. * testsuite/libstdc++-prettyprinters/cxx11.cc: Adjust expected name of custom category. Check io_errc and future_errc errors. 2022-02-15 Jonathan Wakely PR libstdc++/104542 * include/bits/uses_allocator_args.h (make_obj_using_allocator) (uninitialized_construct_using_allocator): Add constexpr. * testsuite/20_util/uses_allocator/make_obj.cc: Check constexpr. * testsuite/20_util/uses_allocator/uninitialized_construct.cc: New test. 2022-02-14 Jonathan Wakely PR libstdc++/100912 * config/locale/gnu/c_locale.h (__convert_from_v): Use inline namespace for IEEE128 long double mode. * config/os/gnu-linux/ldbl-ieee128-extra.ver: Add new symbol version and export __gnu_cxx_ieee128::__convert_from_v. * include/bits/locale_facets_nonio.tcc (money_put::__do_put): Make __ibm128 overload use snprintf directly * testsuite/util/testsuite_abi.cc: Add new symbol version. Remove stable IEEE128/LDBL versions. 2022-02-14 Jonathan Wakely PR libstdc++/103891 * include/bits/c++config (_GLIBCXX_HAVE_COND_TRIVIAL_SPECIAL_MEMBERS): Remove. * include/std/variant: Check feature test macros instead. * include/std/version: Likewise. 2022-02-14 Jonathan Wakely * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Fix typo. 2022-02-14 Jonathan Wakely * src/c++17/floating_to_chars.cc (FLOAT128_TO_CHARS): Depend on LONG_DOUBLE_ALT128_COMPAT instead of USE_FLOAT128. 2022-02-11 Jonathan Wakely * testsuite/20_util/temporary_buffer.cc: Fix dg-warning target selector. 2022-02-11 Jonathan Wakely * testsuite/20_util/monotonic_buffer_resource/allocate.cc: Ignore -Walloc-larger-than warning. * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Likewise. * testsuite/29_atomics/atomic/cons/user_pod.cc: Compile with -O1 to avoid linker error for __atomic_is_lock_free. 2022-02-10 Thomas Rodgers * include/bits/atomic_wait.h (__waiter_base::_S_do_spin, __waiter_base::_S_do_spin_v): Change memory order from relaxed to acquire. 2022-02-10 Jonathan Wakely * include/c_compatibility/stdatomic.h (atomic_fetch_xor): Add using-declaration. (atomic_fetch_xor_explicit): Likewise. * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Check arithmetic and logical operations for atomic_int. 2022-02-10 Jonathan Wakely * src/filesystem/dir-common.h (_GLIBCXX_HAVE_DIRFD): Undefine when is not available. (_GLIBCXX_HAVE_UNLINKAT): Likewise. 2022-02-09 Thomas Rodgers PR libstdc++/104442 * include/bits/atomic_wait.h (__waiter::_M_do_wait_v): Move spin loop inside do loop so that threads failing the wait, reload _M_ver. 2022-02-08 Jonathan Wakely * src/c++17/fs_dir.cc (_Dir(DIR*, const path&)): Change first parameter to _Dir_base&&. * src/filesystem/dir-common.h (_Dir_base(DIR*)): Remove. * src/filesystem/dir.cc (_Dir(DIR*, const path&)): Change first parameter to _Dir_base&&. 2022-02-08 Jonathan Wakely * acinclude.m4 (GLIBCXX_ENABLE_LOCK_POLICY): Add comment about checking for CAS on correct word size. 2022-02-08 Jonathan Wakely * testsuite/experimental/filesystem/operations/create_directories.cc: Adjust expected results for Windows. 2022-02-08 Jonathan Wakely PR libstdc++/104161 * src/c++17/fs_dir.cc (fs::recursive_directory_iterator::__erase): [i_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Refresh entry._M_type member, instead of checking for errno values indicating a directory. * src/c++17/fs_ops.cc (fs::remove_all(const path&)): Use similar logic to non-throwing overload. (fs::remove_all(const path&, error_code&)): Add comments. * src/filesystem/ops-common.h: Likewise. 2022-02-04 Jonathan Wakely * src/filesystem/dir-common.h (_Dir_base::openat): Change return type to use portable posix::DIR alias. 2022-02-04 Jonathan Wakely * include/c_compatibility/stdatomic.h [__clang__]: Use #include_next . 2022-02-04 Jonathan Wakely * include/experimental/bits/fs_ops.h (fs::copy_file): Remove noexcept. (fs::create_directories): Likewise. (fs::remove_all): Likewise. * src/filesystem/ops.cc (fs::copy_file): Remove noexcept. (fs::create_directories): Likewise. (fs::remove_all): Likewise. 2022-02-04 Jonathan Wakely PR libstdc++/104161 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for dirfd and unlinkat. * config.h.in: Regenerate. * configure: Regenerate. * include/bits/fs_dir.h (recursive_directory_iterator): Declare remove_all overloads as friends. (recursive_directory_iterator::__erase): Declare new member function. * include/bits/fs_fwd.h (remove, remove_all): Declare. * src/c++17/fs_dir.cc (_Dir): Add filename_only parameter to constructor. Pass file descriptor argument to base constructor. (_Dir::dir_and_pathname, _Dir::open_subdir, _Dir::do_unlink) (_Dir::unlink, _Dir::rmdir): Define new member functions. (directory_iterator): Pass filename_only argument to _Dir constructor. (recursive_directory_iterator::_Dir_stack): Adjust constructor parameters to take a _Dir rvalue instead of creating one. (_Dir_stack::orig): Add data member for storing original path. (_Dir_stack::report_error): Define new member function. (__directory_iterator_nofollow): Move here from dir-common.h and fix value to be a power of two. (__directory_iterator_filename_only): Define new constant. (recursive_directory_iterator): Construct _Dir object and move into _M_dirs stack. Pass skip_permission_denied argument to first advance call. (recursive_directory_iterator::increment): Use _Dir::open_subdir. (recursive_directory_iterator::__erase): Define new member function. * src/c++17/fs_ops.cc (ErrorReporter, do_remove_all): Remove. (fs::remove_all): Use new recursive_directory_iterator::__erase member function. * src/filesystem/dir-common.h (_Dir_base): Add int parameter to constructor and use openat to implement nofollow semantics. (_Dir_base::fdcwd, _Dir_base::set_close_on_exec, _Dir_base::openat): Define new member functions. (__directory_iterator_nofollow): Move to fs_dir.cc. * src/filesystem/dir.cc (_Dir): Pass file descriptor argument to base constructor. (_Dir::dir_and_pathname, _Dir::open_subdir): Define new member functions. (recursive_directory_iterator::_Dir_stack): Adjust constructor parameters to take a _Dir rvalue instead of creating one. (recursive_directory_iterator): Check for new nofollow option. Construct _Dir object and move into _M_dirs stack. Pass skip_permission_denied argument to first advance call. (recursive_directory_iterator::increment): Use _Dir::open_subdir. * src/filesystem/ops.cc (fs::remove_all): Use C++17 remove_all. 2022-02-04 Jonathan Wakely * include/bits/allocator.h: Qualify std::allocator_traits in deprecated warnings. * libsupc++/exception (uncaught_exception): Add suggestion to deprecated warning. 2022-02-02 Jonathan Wakely * src/c++17/fs_dir.cc (fs::recursive_directory_iterator::pop): Add [[maybe_unused]] attribute. * src/filesystem/dir.cc (fs::recursive_directory_iterator::pop): Likewise. 2022-02-02 Jonathan Wakely * testsuite/23_containers/multiset/operators/cmp_c++20.cc: Use custom comparison function for multiset. * testsuite/23_containers/set/operators/cmp_c++20.cc: Use custom comparison function for set. 2022-02-02 Jonathan Wakely * include/bits/boost_concept_check.h (_OutputIteratorConcept): Change member function to data member of function pointer type. 2022-02-02 Martin Sebor PR libstdc++/101831 * include/std/array (begin): Declare const member function attribute const. (end, rbegin, rend, size, max_size, empty, data): Same. * testsuite/23_containers/array/capacity/empty.cc: Add test cases. * testsuite/23_containers/array/capacity/max_size.cc: Same. * testsuite/23_containers/array/capacity/size.cc: Same. * testsuite/23_containers/array/iterators/begin_end.cc: New test. 2022-02-02 Jonathan Wakely * testsuite/27_io/filesystem/iterators/error_reporting.cc: Use autoconf macro to check whether d_type is present. * testsuite/experimental/filesystem/iterators/error_reporting.cc: Likewise. 2022-02-01 Jonathan Wakely * testsuite/27_io/filesystem/iterators/97731.cc: New test. * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: Check follow_directory_symlink option. * testsuite/experimental/filesystem/iterators/recursive_directory_iterator.cc: Likewise. 2022-02-01 Jonathan Wakely * src/c++17/fs_dir.cc (recursive_directory_iterator::increment): Reset state to past-the-end iterator on error. (fs::recursive_directory_iterator::pop(error_code&)): Likewise. (fs::recursive_directory_iterator::pop()): Check _M_dirs before it might get reset. * src/filesystem/dir.cc (recursive_directory_iterator): Likewise, for the TS implementation. * testsuite/27_io/filesystem/iterators/error_reporting.cc: New test. * testsuite/experimental/filesystem/iterators/error_reporting.cc: New test. 2022-02-01 Jonathan Wakely * include/bits/fs_fwd.h (filesystem::perms): Fix comment. 2022-02-01 Jonathan Wakely PR libstdc++/104301 * acinclude.m4 (GLIBCXX_ENABLE_CSTDIO): Print different messages for stdio_pure and stdio_posix options. * configure: Regenerate. 2022-02-01 Thomas Rodgers * include/bits/atomic_wait.h: Change memory order from Acquire/Release with relaxed loads to SeqCst+Release for accesses to the waiter's count. 2022-01-31 Martin Liska * acinclude.m4: Detect *_ld_is_mold and use it. * configure: Regenerate. 2022-01-30 Hans-Peter Nilsson * testsuite/27_io/basic_istream/get/char/lwg3464.cc: Don't run on simulator targets. * testsuite/27_io/basic_istream/get/wchar_t/lwg3464.cc: Likewise. 2022-01-27 Jonathan Wakely PR libstdc++/100516 * include/bits/deque.tcc (_M_range_initialize): Add __builtin_unreachable to loop. * testsuite/23_containers/deque/100516.cc: New test. 2022-01-27 Jonathan Wakely * include/bits/ranges_base.h (ranges::advance): Avoid signed overflow. Do nothing if already equal to desired result. * testsuite/24_iterators/range_operations/advance_overflow.cc: New test. 2022-01-27 Martin Liska PR libstdc++/104259 * acinclude.m4: Fix typo. * configure: Regenerate. 2022-01-25 Jonathan Wakely PR libstdc++/104019 * include/bits/istream.tcc (basic_istream::sentry): Add braces around try-block. * include/bits/shared_ptr_base.h (_Sp_counted_array_base::_M_init): Add pragmas to disable bogus warnings from PR 61596. 2022-01-25 Jonathan Wakely PR libstdc++/104217 * src/c++17/fs_ops.cc (_GNU_SOURCE): Define. * src/filesystem/dir.cc (_GNU_SOURCE): Define. * src/filesystem/ops.cc (_GNU_SOURCE): Define. 2022-01-25 Jonathan Wakely PR libstdc++/104161 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for fdopendir. * config.h.in: Regenerate. * configure: Regenerate. * src/c++17/fs_dir.cc (_Dir): Add nofollow flag to constructor and pass it to base class constructor. (directory_iterator): Pass nofollow flag to _Dir constructor. (fs::recursive_directory_iterator::increment): Likewise. * src/c++17/fs_ops.cc (do_remove_all): Use nofollow option for directory_iterator constructor. Move error check outside loop. * src/filesystem/dir-common.h (_Dir_base): Add nofollow flag to constructor and when it's set use ::open with O_NOFOLLOW and O_DIRECTORY. * src/filesystem/dir.cc (_Dir): Add nofollow flag to constructor and pass it to base class constructor. (directory_iterator): Pass nofollow flag to _Dir constructor. (fs::recursive_directory_iterator::increment): Likewise. * src/filesystem/ops.cc (remove_all): Use nofollow option for directory_iterator constructor. Move error check outside loop. 2022-01-23 Jonathan Wakely PR libstdc++/104032 * include/std/spanstream (basic_spanbuf(basic_spanbuf&&)): Use mem-initializer for _M_buf. (basic_spanbuf::Operator=(basic_spanbuf&&)): Fix ill-formed member access. * testsuite/27_io/spanstream/2.cc: New test. 2022-01-23 Jonathan Wakely * src/c++17/floating_from_chars.cc (USE_STRTOD_FOR_FROM_CHARS): Define macro for case where std::from_chars is implemented in terms of strtod, strtof or strtold. (buffer_resource, valid_fmt, find_end_of_float, pattern) (from_chars_impl, make_result, reserve_string): Do not define unless USE_STRTOD_FOR_FROM_CHARS is defined. (from_chars): Define when at least one of USE_LIB_FAST_FLOAT and USE_STRTOD_FOR_FROM_CHARS is defined, instead of _GLIBCXX_HAVE_USELOCALE. Use fast_float for long double when it is binary64. 2022-01-23 Jonathan Wakely PR libstdc++/104174 * include/bits/hashtable_policy.h (_Map_base): Add partial specialization for maps with const key types. * testsuite/23_containers/unordered_map/104174.cc: New test. 2022-01-23 Jonathan Wakely PR libstdc++/104019 * include/bits/shared_ptr_base.h (_Sp_counted_base<>::_M_release): Set members to zero without type punning. 2022-01-21 Jonathan Wakely * testsuite/20_util/shared_ptr/cons/array.cc: Fix comment. 2022-01-21 Jonathan Wakely PR libstdc++/87193 PR libstdc++/104019 * include/bits/alloc_traits.h (__cpp_lib_allocator_traits_is_always_equal): Define as type long. * include/bits/allocator.h (__cpp_lib_incomplete_container_elements): Likewise. * include/bits/basic_string.h (__cpp_lib_string_udls): Likewise. * include/bits/chrono.h (__cpp_lib_chrono): Likewise. (__cpp_lib_chrono_udls): Likewise. * include/bits/move.h (__cpp_lib_addressof_constexpr): Likewise. * include/bits/node_handle.h (__cpp_lib_node_extract): Likewise. * include/bits/range_access.h (__cpp_lib_nonmember_container_access): Likewise. * include/bits/shared_ptr.h (__cpp_lib_enable_shared_from_this): Likewise. * include/bits/stl_algo.h (__cpp_lib_clamp): Likewise. (__cpp_lib_sample): Likewise. * include/bits/stl_algobase.h (__cpp_lib_robust_nonmodifying_seq_ops): Likewise. * include/bits/stl_function.h (__cpp_lib_transparent_operators): Likewise. * include/bits/stl_iterator.h (__cpp_lib_make_reverse_iterator): Likewise. * include/bits/stl_map.h (__cpp_lib_map_try_emplace): Likewise. * include/bits/stl_tree.h (__cpp_lib_generic_associative_lookup): Likewise. * include/bits/unique_ptr.h (__cpp_lib_make_unique): Likewise. * include/bits/unordered_map.h (__cpp_lib_unordered_map_try_emplace): Likewise. * include/c_global/cmath (__cpp_lib_hypot): Likewise. * include/c_global/cstddef (__cpp_lib_byte): Likewise. * include/std/atomic (__cpp_lib_atomic_is_always_lock_free): Likewise. * include/std/complex (__cpp_lib_complex_udls): Likewise. * include/std/filesystem (__cpp_lib_filesystem): Likewise. * include/std/functional (__cpp_lib_not_fn): Likewise. (__cpp_lib_boyer_moore_searcher): Likewise. * include/std/iomanip (__cpp_lib_quoted_string_io): Likewise. * include/std/mutex (__cpp_lib_scoped_lock): Likewise. * include/std/numeric (__cpp_lib_gcd_lcm): Likewise. (__cpp_lib_gcd, __cpp_lib_lcm): Likewise. * include/std/tuple (__cpp_lib_apply): Likewise. (__cpp_lib_make_from_tuple): Likewise. * include/std/type_traits (__cpp_lib_integral_constant_callable) (__cpp_lib_bool_constant, __cpp_lib_logical_traits) (__cpp_lib_is_null_pointer, __cpp_lib_transformation_trait_aliases) (__cpp_lib_result_of_sfinae, __cpp_lib_void_t) (__cpp_lib_is_swappable, __cpp_lib_is_invocable) (__cpp_lib_has_unique_object_representations) (__cpp_lib_is_aggregate): Likewise. * include/std/version: Likewise. * libsupc++/new (__cpp_lib_launder): Likewise. 2022-01-21 Jonathan Wakely * include/std/version (__cpp_lib_shared_ptr_arrays): Fix condition for C++17 definition. 2022-01-21 Jonathan Wakely * include/bits/shared_ptr_atomic.h (_Sp_atomic::_Atomic_count): Add constexpr. (_Sp_atomic::_M_ptr): Add default member-initializer. * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc: Check constant initialization. * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: Likewise. 2022-01-20 Jonathan Wakely * src/c++11/cxx11-ios_failure.cc (__constinit): Define as equivalent attribute for Clang. * src/c++11/future.cc (__constinit): Likewise. * src/c++11/system_error.cc (__constinit): Likewise. * src/c++17/memory_resource.cc (__constinit): Likewise. 2022-01-20 Jonathan Wakely * scripts/testsuite_flags.in: Only add src/filesystem/.libs and src/libbacktrace/.libs to LDFLAGS if those directories exist. 2022-01-19 Jonathan Wakely * configure.ac (GLIBCXX_ENABLE_DEBUG_FLAGS): Remove -gdwarf-4 from default flags. * configure: Regenerate. 2022-01-19 Jonathan Wakely PR libstdc++/104123 * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: Include . 2022-01-19 Jonathan Wakely * scripts/testsuite_flags.in: Add src/libbacktrace/.libs to linker search paths. * src/Makefile.am: Fix src/debug/libbacktrace build. * src/Makefile.in: Regenerate. * src/libbacktrace/Makefile.am: Use per-library CPPFLAGS variable. Use symlinks for the source files. * src/libbacktrace/Makefile.in: Regenerate. 2022-01-19 Matthias Kretz * include/experimental/bits/simd.h (__floating_point_flags): Do not rely on math_errhandling to expand to a constant expression. 2022-01-19 Jonathan Wakely * doc/xml/manual/evolution.xml: Document deprecations. * doc/xml/manual/status_cxx2017.xml: Update status. * doc/html/*: Regenerate. 2022-01-19 Jonathan Wakely * include/bits/stl_tempbuf.h (get_temporary_buffer): Change _GLIBCXX14_DEPRECATED to _GLIBCXX17_DEPRECATED. 2022-01-19 Jonathan Wakely * include/bits/stl_pair.h (_PCC::_DeprConsPair): Remove unused function. 2022-01-19 Jonathan Wakely PR libstdc++/104101 * include/bits/shared_ptr_atomic.h (_Sp_atomic::_Atomic_count::lock): Only use __thread_relax if __cpp_lib_atomic_wait is defined. 2022-01-18 Jonathan Wakely PR libstdc++/104099 * include/bits/basic_string.h (basic_string(nullptr_t)): Only define for C++23. (operator=(nullptr_t)): Likewise. * include/bits/cow_string.h: Likewise. * include/std/string_view (basic_string_view(nullptr_t)): Likewise. * testsuite/21_strings/basic_string/cons/char/nullptr.cc: Adjust expected error. Add examples that become ill-formed in C++23. * testsuite/21_strings/basic_string_view/cons/char/nonnull.cc: Adjust expected errors. * testsuite/21_strings/basic_string_view/cons/wchar_t/nonnull.cc: Likewise. 2022-01-18 Jonathan Wakely PR libstdc++/104098 * include/bits/stl_iterator.h (reverse_iterator): Check __cpp_lib_concepts instead of __cplusplus. 2022-01-18 Jonathan Wakely PR libstdc++/101124 * include/bits/stl_pair.h (pair): Adjust constraints on deprecated constructors accepting literal zero as null pointer constant. Improve wording of deprecated attribute. * testsuite/20_util/pair/cons/99957.cc: Check that deprecated constructors do not cause ambiguities for copyable types. 2022-01-18 Jonathan Wakely * include/bits/stl_function.h (ptr_fun): Fix suggestion for non-deprecated alternative. 2022-01-18 Tom Honermann * acinclude.m4: Define config macros if uchar.h provides c8rtomb() and mbrtoc8(). * config.h.in: Regenerate. * configure: Regenerate. * include/c_compatibility/uchar.h (c8rtomb, mbrtoc8): Define. * include/c_global/cuchar (c8rtomb, mbrtoc8): Likewise. * include/c_std/cuchar (c8rtomb, mbrtoc8): Likewise. * testsuite/21_strings/headers/cuchar/functions_std_cxx20.cc: New test. * testsuite/21_strings/headers/cuchar/functions_std_fchar8_t.cc: New test. 2022-01-18 Jonathan Wakely * include/Makefile.am: Install new header. * include/Makefile.in: Regenerate. * include/c_compatibility/stdatomic.h: New file. * testsuite/29_atomics/headers/stdatomic.h/c_compat.cc: New test. 2022-01-18 Jonathan Wakely PR libstdc++/104080 * src/c++17/fast_float/LOCAL_PATCHES: Update. * src/c++17/fast_float/fast_float.h (FASTFLOAT_IS_BIG_ENDIAN): Define in terms of __BYTE_ORDER__. 2022-01-18 Jonathan Wakely PR libstdc++/104080 * src/c++17/fast_float/LOCAL_PATCHES: UPDATE. * src/c++17/fast_float/fast_float.h (round): Use explicit template argument list for std::min. 2022-01-18 Jonathan Wakely * doc/xml/manual/status_cxx2017.xml: Update C++17 status. * doc/xml/manual/status_cxx2020.xml: Use 12.1 instead of 12 for upcoming release. * doc/html/manual/status.html: Regenerate. 2022-01-18 Jonathan Wakely * acinclude.m4 (GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING): Improve comments. * configure: Regenerate. 2022-01-17 Patrick Palka * src/c++17/floating_from_chars.cc: (USE_LIB_FAST_FLOAT): Conditionally define, and use it to conditionally include fast_float. (from_chars): Use fast_float for float and double when USE_LIB_FAST_FLOAT. 2022-01-17 Patrick Palka * src/c++17/fast_float/LOCAL_PATCHES: Update. * src/c++17/fast_float/fast_float.h (from_chars_advanced): In case of over/underflow, return errc::result_out_of_range and don't modify 'value'. 2022-01-17 Patrick Palka * src/c++17/fast_float/LOCAL_PATCHES: Update. * src/c++17/fast_float/fast_float.h: Apply local modifications. 2022-01-17 Patrick Palka * src/c++17/fast_float/LOCAL_PATCHES: New file. * src/c++17/fast_float/MERGE: New file. * src/c++17/fast_float/README.md: New file, copied from the fast_float repository. * src/c++17/fast_float/fast_float.h: New file, an amalgamation of the fast_float library. 2022-01-17 Patrick Palka * src/c++17/floating_from_chars.cc: Include . (ascii_to_hexit, starts_with_ci): Conditionally define. (__floating_from_chars_hex): Conditionally define. (from_chars): Use __floating_from_chars_hex for chars_format::hex parsing of binary32/64 float/double. (testsuite/20_util/from_chars/7.cc): New test. * testsuite/20_util/from_chars/7.cc: New file. 2022-01-17 Jonathan Wakely * acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): New macro. * configure.ac: Use GLIBCXX_ENABLE_BACKTRACE. * include/Makefile.am: Add new header. * include/Makefile.in: Regenerate. * include/std/stacktrace: New header. * include/std/version (__cpp_lib_stacktrace): Define. * Makefile.in: Regenerate. * config.h.in: Regenerate. * configure: Regenerate. * doc/Makefile.in: Regenerate. * libsupc++/Makefile.in: Regenerate. * po/Makefile.in: Regenerate. * python/Makefile.in: Regenerate. * src/Makefile.am: Regenerate. * src/Makefile.in: Regenerate. * src/c++11/Makefile.in: Regenerate. * src/c++17/Makefile.in: Regenerate. * src/c++20/Makefile.in: Regenerate. * src/c++98/Makefile.in: Regenerate. * src/filesystem/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate. * src/libbacktrace/Makefile.am: New file. * src/libbacktrace/Makefile.in: New file. * src/libbacktrace/backtrace-rename.h: New file. * src/libbacktrace/backtrace-supported.h.in: New file. * src/libbacktrace/config.h.in: New file. * testsuite/lib/libstdc++.exp (check_effective_target_stacktrace): New proc. * testsuite/20_util/stacktrace/entry.cc: New test. * testsuite/20_util/stacktrace/synopsis.cc: New test. * testsuite/20_util/stacktrace/version.cc: New test. 2022-01-17 Jonathan Wakely * doc/xml/manual/status_cxx2020.xml: Use final C++20 option names. * doc/html/manual/status.html: Regenerate. 2022-01-17 Jonathan Wakely PR libstdc++/103650 * include/Makefile.am: Rename LT_OBJDIR and STDC_HEADERS. * include/Makefile.in: Regenerate. * testsuite/17_intro/headers/c++1998/103650.cc: New test. 2022-01-17 Matthias Kretz * include/experimental/bits/simd.h (__floating_point_flags): Do not rely on the presence of the math_errhandling macro. 2022-01-17 Jonathan Wakely * include/bits/shared_ptr_atomic.h (_Sp_atomic): Add typename to qualified-id for dependent type. 2022-01-17 Jonathan Wakely * doc/xml/manual/status_cxx2020.xml: Update. * doc/html/manual/status.html: Regenerate. 2022-01-17 Jonathan Wakely Thomas Rodgers * include/bits/shared_ptr_atomic.h (__cpp_lib_atomic_shared_ptr): New macro. (_Sp_atomic): New class template. (atomic>, atomic>): New partial specializations. * include/bits/shared_ptr_base.h (__shared_count, __weak_count) (__shared_ptr, __weak_ptr): Declare _Sp_atomic as a friend. * include/std/version (__cpp_lib_atomic_shared_ptr): New macro. * testsuite/20_util/shared_ptr/atomic/atomic_shared_ptr.cc: New test. * testsuite/20_util/weak_ptr/atomic_weak_ptr.cc: New test. 2022-01-15 Matthias Kretz * include/experimental/bits/simd.h: Move feature detection bools and add __have_avx512bitalg, __have_avx512vbmi2, __have_avx512vbmi, __have_avx512ifma, __have_avx512cd, __have_avx512vnni, __have_avx512vpopcntdq. (__detail::__machine_flags): New function which returns a unique uint64 depending on relevant -m and -f flags. (__detail::__odr_helper): New type alias for either an anonymous type or a type specialized with the __machine_flags number. (_SimdIntOperators): Change template parameters from _Impl to _Tp, _Abi because _Impl now has an __odr_helper parameter which may be _OdrEnforcer from the anonymous namespace, which makes for a bad base class. (many): Either add __odr_helper template parameter or mark as always_inline. * include/experimental/bits/simd_detail.h: Add defines for AVX512BITALG, AVX512VBMI2, AVX512VBMI, AVX512IFMA, AVX512CD, AVX512VNNI, AVX512VPOPCNTDQ, and AVX512VP2INTERSECT. * include/experimental/bits/simd_builtin.h: Add __odr_helper template parameter or mark as always_inline. * include/experimental/bits/simd_fixed_size.h: Ditto. * include/experimental/bits/simd_math.h: Ditto. * include/experimental/bits/simd_scalar.h: Ditto. * include/experimental/bits/simd_neon.h: Add __odr_helper template parameter. * include/experimental/bits/simd_ppc.h: Ditto. * include/experimental/bits/simd_x86.h: Ditto. 2022-01-14 Uroš Bizjak * testsuite/22_locale/numpunct/members/char/3.cc: Require pt_PT locale instead of nl_NL. (test02): Use pt_PT locale instead of nl_NL. 2022-01-14 Jonathan Wakely PR libstdc++/91260 PR libstdc++/91383 PR libstdc++/95065 * include/backward/binders.h (bind1st, bind2nd): Add deprecated attribute. * include/bits/refwrap.h (_Maybe_unary_or_binary_function): Disable deprecated warnings for base classes. (_Reference_wrapper_base): Likewise. * include/bits/shared_ptr_base.h (_Sp_owner_less): Likewise. * include/bits/stl_bvector.h (_Bit_iterator_base): Likewise. * include/bits/stl_function.h (unary_function, binary_function): Add deprecated attribute. (unary_negate, not1, binary_negate, not2, ptr_fun) (pointer_to_unary_function, pointer_to_binary_function) (mem_fun_t, const_mem_fun_t, mem_fun_ref_t, const_mem_fun_ref_t) (mem_fun1_t, const_mem_fun1_t, mem_fun_ref1_t) (const_mem_fun1_ref_t, mem_fun, mem_fun_ref): Add deprecated attributes. * include/bits/stl_iterator.h: Disable deprecated warnings for std::iterator base classes. * include/bits/stl_iterator_base_types.h (iterator): Add deprecated attribute. * include/bits/stl_map.h (map::value_compare): Disable deprecated warnings for base class. * include/bits/stl_multimap.h (multimap::value_compare): Likewise. * include/bits/stl_raw_storage_iter.h (raw_storage_iterator): Add deprecated attribute. * include/bits/stl_tempbuf.h (get_temporary_buffer): Likewise. * include/bits/stream_iterator.h: Disable deprecated warnings. * include/bits/streambuf_iterator.h: Likewise. * include/ext/bitmap_allocator.h: Remove unary_function base classes. * include/ext/functional: Disable deprecated warnings. * include/ext/rope: Likewise. * include/ext/throw_allocator.h: Likewise. * include/std/type_traits (result_of): Add deprecated attribute. * include/tr1/functional: Disable deprecated warnings. * include/tr1/functional_hash.h: Likewise. * testsuite/20_util/function_objects/binders/1.cc: Add -Wno-disable-deprecations. * testsuite/20_util/function_objects/binders/3113.cc: Likewise. * testsuite/20_util/function_objects/constexpr.cc: Add dg-warning. * testsuite/20_util/raw_storage_iterator/base.cc: Likewise. * testsuite/20_util/raw_storage_iterator/dr2127.cc: Likewise. * testsuite/20_util/raw_storage_iterator/requirements/base_classes.cc: Likewise. * testsuite/20_util/raw_storage_iterator/requirements/explicit_instantiation/1.cc: Likewise. * testsuite/20_util/raw_storage_iterator/requirements/typedefs.cc: Likewise. * testsuite/20_util/reference_wrapper/24803.cc: Likewise. * testsuite/20_util/reference_wrapper/typedefs.cc: Enable for C++20 and check for absence of nested types. * testsuite/20_util/shared_ptr/comparison/less.cc: Remove std::binary_function base class. * testsuite/20_util/temporary_buffer.cc: Add dg-warning. * testsuite/21_strings/basic_string/cons/char/69092.cc: Remove std::iterator base class. * testsuite/24_iterators/back_insert_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/front_insert_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/insert_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/istream_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/istreambuf_iterator/92285.cc: Likewise. * testsuite/24_iterators/istreambuf_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/ostream_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/ostreambuf_iterator/requirements/base_classes.cc: Likewise. * testsuite/24_iterators/reverse_iterator/requirements/base_classes.cc: Likewise. * testsuite/25_algorithms/copy/34595.cc: Likewise. * testsuite/25_algorithms/minmax/3.cc: Remove std::binary_function base class. * testsuite/25_algorithms/all_of/requirements/explicit_instantiation/2.cc: Disable deprecated warnings. * testsuite/25_algorithms/all_of/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/any_of/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/any_of/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/copy_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/copy_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/count_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/count_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/find_end/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/find_end/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/find_first_of/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/find_first_of/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/find_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/find_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/find_if_not/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/find_if_not/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/for_each/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/for_each/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/is_partitioned/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/is_partitioned/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/is_permutation/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/is_permutation/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/none_of/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/none_of/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/partition/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/partition/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/partition_copy/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/partition_copy/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/partition_point/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/partition_point/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/random_shuffle/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/random_shuffle/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/remove_copy_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/remove_copy_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/remove_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/remove_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/replace_copy_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/replace_copy_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/replace_if/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/replace_if/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/search/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/search/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/search_n/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/search_n/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/stable_partition/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/stable_partition/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/25_algorithms/transform/requirements/explicit_instantiation/2.cc: Likewise. * testsuite/25_algorithms/transform/requirements/explicit_instantiation/pod.cc: Likewise. * testsuite/27_io/basic_filebuf/underflow/wchar_t/9178.cc: Add dg-warning. * testsuite/ext/pb_ds/example/priority_queue_erase_if.cc: Likewise. * testsuite/ext/pb_ds/example/priority_queue_split_join.cc: Likewise. * testsuite/tr1/3_function_objects/reference_wrapper/typedefs.cc: Disable deprecated warnings. * testsuite/tr1/6_containers/hash/requirements/base_classes.cc: Likewise. * testsuite/util/regression/trait/erase_if_fn.hpp: Remove std::unary_function base classes. * testsuite/util/testsuite_iterators.h (output_iterator_wrapper): Remove std::iterator base classes. 2022-01-14 Jonathan Wakely * include/bits/shared_ptr.h (__cpp_lib_shared_ptr_weak_type): Correct type of macro value. (shared_ptr): Add additional friend declarations. (make_shared, allocate_shared): Constrain existing overloads and remove static_assert. * include/bits/shared_ptr_base.h (__cpp_lib_smart_ptr_for_overwrite): New macro. (_Sp_counted_ptr_inplace): New partial specialization for use with make_shared_for_overwrite. (__cpp_lib_shared_ptr_arrays): Update value for C++20. (_Sp_counted_array_base): New class template. (_Sp_counted_array): New class template. (__shared_count(_Tp*&, const _Sp_counted_array_base&, _Init)): New constructor for allocating shared arrays. (__shared_ptr(const _Sp_counted_array_base&, _Init)): Likewise. * include/std/version (__cpp_lib_shared_ptr_weak_type): Correct type. (__cpp_lib_shared_ptr_arrays): Update value for C++20. (__cpp_lib_smart_ptr_for_overwrite): New macro. * testsuite/20_util/shared_ptr/creation/99006.cc: Adjust expected errors. * testsuite/20_util/shared_ptr/creation/array.cc: New test. * testsuite/20_util/shared_ptr/creation/overwrite.cc: New test. * testsuite/20_util/shared_ptr/creation/version.cc: New test. * testsuite/20_util/unique_ptr/creation/for_overwrite.cc: Check feature test macro. Test non-trivial default-initialization. 2022-01-14 Jonathan Wakely * include/bits/stl_construct.h (_Construct, _Construct_novalue): Also cast away cv-qualifiers when converting pointer to void. * testsuite/20_util/allocator/void.cc: Test construct function with cv-qualified types. 2022-01-14 Jonathan Wakely PR libstdc++/103992 * include/bits/stl_iterator.h (common_iterator): Use std::construct_at instead of placement new. * testsuite/24_iterators/common_iterator/1.cc: Check copy construction is usable in constant expressions. 2022-01-14 Jonathan Wakely * doc/xml/manual/status_cxx2011.xml: Document new tokens accepted by std::random_device constructor. * doc/html/manual/status.html: Regenerate. 2022-01-12 Patrick Palka * testsuite/20_util/to_chars/103955.cc: Add explicit dg-do directive. 2022-01-12 Patrick Palka PR libstdc++/103955 * src/c++17/floating_to_chars.cc (__floating_to_chars_hex): Track the excess precision separately from the effective precision. Avoid overflow in bounds check by splitting it into two checks. (__floating_to_chars_precision): Avoid overflow in bounds checks similarly. * testsuite/20_util/to_chars/103955.cc: New test. 2022-01-11 Jonathan Wakely PR libstdc++/103726 * include/Makefile.am: Install for freestanding. * include/Makefile.in: Regenerate. * include/std/version (__cpp_lib_source_location): Define for freestanding. 2022-01-11 Jonathan Wakely * include/std/ranges (ranges::lazy_split_view::_InnerIter::end()): Add neoxcept (LWG 3593). 2022-01-11 Jonathan Wakely * include/std/ranges (ranges::__detail::__box): Add constexpr to assignment operators (LWG 3572). * testsuite/std/ranges/adaptors/filter.cc: Check assignment of a view that uses copyable-box. 2022-01-11 Jonathan Wakely PR libstdc++/103726 * include/Makefile.am: Install for freestanding. * include/Makefile.in: Regenerate. * include/std/coroutine: Adjust headers and preprocessor conditions. (__coroutine_traits_impl): Use concepts when available. [_GLIBCXX_HOSTED] (hash): Define. 2022-01-11 Jonathan Wakely * include/std/ostream (operator<<(basic_ostream&, charT)): Use unformatted input if no padding is needed. (operator<<(basic_ostream&, char)): Likewise. 2022-01-11 Jonathan Wakely PR libstdc++/103891 * include/bits/c++config (_GLIBCXX_HAVE_COND_TRIVIAL_SPECIAL_MEMBERS): Define. * include/std/variant (__cpp_lib_variant): Only define C++20 value when the compiler is known to support conditionally trivial destructors. * include/std/version (__cpp_lib_variant): Likewise. 2022-01-11 Jonathan Wakely * include/bits/stl_iterator.h (common_iterator): Add constexpr to all member functions (LWG 3574). * testsuite/24_iterators/common_iterator/1.cc: Evaluate some tests as constant expressions. * testsuite/24_iterators/common_iterator/2.cc: Likewise. 2022-01-10 Jakub Jelinek PR libstdc++/77760 * include/bits/locale_facets_nonio.h (__time_get_state): New struct. (time_get::_M_extract_via_format): Declare new method with __time_get_state& as an extra argument. * include/bits/locale_facets_nonio.tcc (_M_extract_via_format): Add __state argument, set various fields in it while parsing. Handle %j, %U, %w and %W, fix up handling of %y, %Y and %C, don't adjust tm_hour for %p immediately. Add a wrapper around the method without the __state argument for backwards compatibility. (_M_extract_num): Remove all __len == 4 special cases. (time_get::do_get_time, time_get::do_get_date, time_get::do_get): Zero initialize __state, pass it to _M_extract_via_format and finalize it at the end. (do_get_year): For 1-2 digit parsed years, map 0-68 to 2000-2068, 69-99 to 1969-1999. For 3-4 digit parsed years use that as year. (get): If do_get isn't overloaded from the locale_facets_nonio.tcc version, don't call do_get but call _M_extract_via_format instead to pass around state. * config/abi/pre/gnu.ver (GLIBCXX_3.4.30): Export _M_extract_via_format with extra __time_get_state and __time_get_state::_M_finalize_state. * src/c++98/locale_facets.cc (is_leap, day_of_the_week, day_of_the_year): New functions in anon namespace. (mon_yday): New var in anon namespace. (__time_get_state::_M_finalize_state): Define. * testsuite/22_locale/time_get/get/char/4.cc: New test. * testsuite/22_locale/time_get/get/wchar_t/4.cc: New test. * testsuite/22_locale/time_get/get_year/char/1.cc (test01): Parse 197 as year 197AD instead of error. * testsuite/22_locale/time_get/get_year/char/5.cc (test01): Parse 1 as year 2001 instead of error. * testsuite/22_locale/time_get/get_year/char/6.cc: New test. * testsuite/22_locale/time_get/get_year/wchar_t/1.cc (test01): Parse 197 as year 197AD instead of error. * testsuite/22_locale/time_get/get_year/wchar_t/5.cc (test01): Parse 1 as year 2001 instead of error. * testsuite/22_locale/time_get/get_year/wchar_t/6.cc: New test. 2022-01-10 Jonathan Wakely PR libstdc++/103866 * acinclude.m4 (GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS): Do nothing for freestanding builds. (GLIBCXX_ENABLE_HOSTED): Define FREESTANDING_FLAGS. * configure.ac: Do not use AC_LIBTOOL_DLOPEN when configured with --without-headers. Do not use GCC_HEADER_STDINT for freestanding builds. * libsupc++/Makefile.am (HOSTED_CXXFLAGS): Use -ffreestanding for freestanding builds. * configure: Regenerate. * Makefile.in: Regenerate. * doc/Makefile.in: Regenerate. * include/Makefile.in: Regenerate. * libsupc++/Makefile.in: Regenerate. * po/Makefile.in: Regenerate. * python/Makefile.in: Regenerate. * src/Makefile.in: Regenerate. * src/c++11/Makefile.in: Regenerate. * src/c++17/Makefile.in: Regenerate. * src/c++20/Makefile.in: Regenerate. * src/c++98/Makefile.in: Regenerate. * src/filesystem/Makefile.in: Regenerate. * testsuite/Makefile.in: Regenerate. 2022-01-10 Jonathan Wakely * testsuite/28_regex/algorithms/regex_replace/char/103664.cc: Add dg-timeout-factor directive. * testsuite/28_regex/basic_regex/84110.cc: Likewise. * testsuite/28_regex/basic_regex/ctors/char/other.cc: Likewise. * testsuite/28_regex/match_results/102667.cc: Likewise. 2022-01-10 Jonathan Wakely * doc/xml/manual/using.xml: Update documentation around default -std option. * doc/html/*: Regenerate. 2022-01-10 Jonathan Wakely PR libstdc++/100017 * src/c++17/Makefile.am (AM_CXXFLAGS): Add -nostdinc++. * src/c++17/Makefile.in: Regenerate. 2022-01-09 Sandra Loosemore * testsuite/18_support/type_info/constexpr.cc: Add explicit -fdelete-null-pointer-checks option. 2022-01-06 Pavel I. Kryukov Jonathan Wakely PR libstdc++/103853 * include/bits/forward_list.tcc (forward_list::merge): Check for self-merge. * testsuite/23_containers/forward_list/operations/merge.cc: New test. 2022-01-06 Jonathan Wakely * include/bits/regex.h (basic_regex, match_results): Qualify name in friend declaration, to work around Clang bug. 2022-01-06 Jonathan Wakely * testsuite/ext/rope/pthread7-rope.cc: Add dg-timeout-factor. 2022-01-06 Jonathan Wakely PR libstdc++/103911 * include/std/charconv (__from_chars_alpha_to_num): Return char instead of unsigned char. Change invalid return value to 127 instead of using numeric trait. (__from_chars_alnum): Fix comment. Do not use std::isdigit. Change type of variable to char. 2022-01-05 François Dumont PR libstdc++/68303 * include/bits/hashtable_policy.h (_Hashtable_hash_traits<_Hash>): New. (_Hash_code_base<>::_M_hash_code(const _Hash_node_value<>&)): New. (_Hashtable_base<>::_M_key_equals): New. (_Hashtable_base<>::_M_equals): Use latter. (_Hashtable_base<>::_M_key_equals_tr): New. (_Hashtable_base<>::_M_equals_tr): Use latter. * include/bits/hashtable.h (_Hashtable<>::__small_size_threshold()): New, use _Hashtable_hash_traits. (_Hashtable<>::find): Loop through elements to look for key if size is lower than __small_size_threshold(). (_Hashtable<>::_M_emplace(true_type, _Args&&...)): Likewise. (_Hashtable<>::_M_insert_unique(_Kt&&, _Args&&, const _NodeGenerator&)): Likewise. (_Hashtable<>::_M_compute_hash_code(const_iterator, const key_type&)): New. (_Hashtable<>::_M_emplace(const_iterator, false_type, _Args&&...)): Use latter. (_Hashtable<>::_M_find_before_node(const key_type&)): New. (_Hashtable<>::_M_erase(true_type, const key_type&)): Use latter. (_Hashtable<>::_M_erase(false_type, const key_type&)): Likewise. * src/c++11/hashtable_c++0x.cc: Include . * testsuite/util/testsuite_performance.h (report_performance): Use 9 width to display memory. * testsuite/performance/23_containers/insert_erase/unordered_small_size.cc: New performance test case. 2022-01-05 Jonathan Wakely PR libstdc++/103919 * include/bits/basic_string.h (basic_string(const T&, size_t, size_t)): Relax constraints on string_view parameter. * include/bits/cow_string.h (basic_string(const T&, size_t, size_t)): Likewise. * testsuite/21_strings/basic_string/cons/char/103919.cc: New test. 2022-01-05 Jonathan Wakely * config/abi/pre/gnu.ver (GLIBCXX_3.4.30): Export new symbol for ARM EABI. * include/bits/c++config (_GLIBCXX23_CONSTEXPR): Define. * include/std/version (__cpp_lib_constexpr_typeinfo): Define. * libsupc++/tinfo.cc: Add #error to ensure non-inline definition is emitted. (type_info::__equal): Define alias symbol. * libsupc++/typeinfo (type_info::before): Combine different implementations into one. (type_info::operator==): Likewise. Use address equality for constant evaluation. Call __equal for targets that require the definition to be non-inline. * testsuite/18_support/type_info/constexpr.cc: New test. 2022-01-05 Jonathan Wakely * src/c++11/cxx11-ios_failure.cc (io_error_category): Define class and virtual functions as 'final'. (io_category_instance): Use constinit union to make the object immortal. * src/c++11/future.cc (future_error_category): Define class and virtual functions as 'final'. (future_category_instance): Use constinit union. 2022-01-05 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Strip versioned namespace from the type name that is printed. 2022-01-05 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdRegexStatePrinter): New printer for std::regex NFA states. 2022-01-05 Jonathan Wakely * testsuite/23_containers/forward_list/operations/1.cc: Fill in placeholders in comments. * testsuite/23_containers/forward_list/operations/2.cc: Likewise. * testsuite/23_containers/forward_list/operations/3.cc: Likewise. * testsuite/23_containers/forward_list/operations/4.cc: Likewise. * testsuite/23_containers/forward_list/operations/5.cc: Likewise. * testsuite/23_containers/forward_list/operations/6.cc: Likewise. * testsuite/23_containers/forward_list/operations/7.cc: Likewise. 2022-01-05 Jonathan Wakely PR libstdc++/103848 * include/bits/stl_deque.h (operator-): Do not use 0 as null pointer constant. 2022-01-05 Jonathan Wakely * include/bits/alloc_traits.h (allocator_traits>): Use std::_Construct for construct. 2022-01-05 Jonathan Wakely PR libstdc++/103877 * doc/xml/faq.xml: Add '-x c++' to preprocessor command. * doc/html/faq.html: Regenerate. 2022-01-05 Jonathan Wakely * include/bits/regex.h (__regex_algo_impl): Change __policy and __match_mode template parameters to be function parameters. (regex_match, regex_search): Pass policy and match mode as function arguments. * include/bits/regex.tcc (__regex_algo_impl): Change template parameters to function parameters. * include/bits/regex_compiler.h (_RegexTranslatorBase): Use 'if constexpr' for conditions using template parameters. (_RegexTranslator): Likewise. * include/bits/regex_executor.tcc (_Executor::_M_handle_accept): Likewise. * testsuite/util/testsuite_regex.h (regex_match_debug) (regex_search_debug): Move template arguments to function arguments. 2022-01-05 Jonathan Wakely * testsuite/util/testsuite_regex.h (regex_match_debug): Compare results even if the match failed. 2022-01-05 Jonathan Wakely * include/bits/regex_compiler.tcc: Adjust all calls to __throw_regex_error. * include/bits/regex_error.h (__throw_regex_error): Add noreturn attribute. * include/bits/regex_scanner.tcc: Likewise. * src/c++11/regex.cc (desc): New helper function. (regex_error::regex_error(error_type)): Use desc to get a string corresponding to the error code. Copyright (C) 2022 Free Software Foundation, Inc. Copying and distribution of this file, with or without modification, are permitted in any medium without royalty provided the copyright notice and this notice are preserved.