2022-05-16 Jonathan Wakely Backported from master: 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 and power-of-two operations. 2022-05-09 Jonathan Wakely Backported from master: 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. 2022-05-09 Jonathan Wakely Backported from master: 2021-11-26 Jonathan Wakely * testsuite/27_io/types/1.cc: Add c++11 target selector to warnings. 2022-05-09 Jonathan Wakely Backported from master: 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. 2022-05-09 Jonathan Wakely Backported from master: 2021-12-09 Jonathan Wakely PR libstdc++/103630 * libsupc++/exception_ptr.h (make_exception_ptr): Decay the template parameter. Use typeid of the static type. * testsuite/18_support/exception_ptr/103630.cc: New test. 2022-05-09 Jonathan Wakely Backported from master: 2020-12-17 Jonathan Wakely PR libstdc++/93151 * config/os/djgpp/error_constants.h: Test POSIX errno macros directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros. * config/os/mingw32-w64/error_constants.h: Likewise. * config/os/mingw32/error_constants.h: Likewise. 2022-05-09 Jonathan Wakely Backported from master: 2020-12-16 Jonathan Wakely PR libstdc++/93151 * acinclude.m4 (GLIBCXX_CHECK_SYSTEM_ERROR): Remove. * config.h.in: Regenerate. * configure: Regenerate. * configure.ac (GLIBCXX_CHECK_SYSTEM_ERROR): Do not use. * config/os/generic/error_constants.h: Test POSIX errno macros directly, instead of corresponding _GLIBCXX_HAVE_EXXX macros. * testsuite/19_diagnostics/headers/system_error/errc_std_c++0x.cc: Likewise. * testsuite/19_diagnostics/headers/system_error/93151.cc: New test. 2022-05-09 Jonathan Wakely Backported from master: 2021-05-04 Jonathan Wakely * include/bits/basic_string.h (basic_string(const CharT*, const A&)): Do not do arithmetic on null pointer. 2022-05-09 Jonathan Wakely Backported from master: 2021-08-12 Jonathan Wakely PR libstdc++/101870 * include/c_global/cmath (hypot): Use __promoted_t. (lerp): Add new overload accepting any arithmetic types. * include/ext/type_traits.h (__promoted_t): New alias template. * testsuite/26_numerics/lerp.cc: Moved to... * testsuite/26_numerics/lerp/1.cc: ...here. * testsuite/26_numerics/lerp/constexpr.cc: New test. * testsuite/26_numerics/lerp/version.cc: New test. 2022-05-09 Jonathan Wakely Backported from master: 2021-10-01 Jonathan Wakely PR libstdc++/100153 * include/bits/vector.tcc (vector::_M_shrink_to_fit()): When size() is zero just deallocate and reset. 2022-05-09 Jonathan Wakely Backported from master: 2021-10-01 Jonathan Wakely * testsuite/25_algorithms/is_permutation/2.cc: Include . 2022-05-09 Pavel I. Kryukov Backported from master: 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. 2022-05-09 Jonathan Wakely Backported from master: 2021-12-04 Jonathan Wakely PR libstdc++/103549 * include/bits/regex.h (match_results): Give names to template parameters in first declaration. (match_results::_M_begin): Add default member-initializer. 2022-05-09 Jonathan Wakely Backported from master: 2022-01-05 Jonathan Wakely PR libstdc++/103877 * doc/xml/faq.xml: Add '-x c++' to preprocessor command. * doc/html/faq.html: Regenerate. 2022-05-09 Jonathan Wakely Backported from master: 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. 2022-05-09 Jonathan Wakely Backported from master: 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. 2022-05-09 Jonathan Wakely Backported from master: 2022-04-14 Jonathan Wakely * doc/xml/manual/intro.xml: Fix comment. 2022-05-09 Jonathan Wakely Backported from master: 2022-05-09 Jonathan Wakely PR libstdc++/102048 * include/ext/rope (rope::erase(size_type)): Deprecate broken function. 2021-11-23 Jonathan Wakely Backported from master: 2021-11-23 Jonathan Wakely PR libstdc++/103381 * include/ext/bitmap_allocator.h: Include instead of . 2021-11-01 Jonathan Wakely Backported from master: 2021-11-01 Jonathan Wakely PR libstdc++/103022 * include/std/valarray (begin, end): Do not dereference an empty valarray. Add noexcept. * testsuite/26_numerics/valarray/range_access.cc: Check empty valarray. Check iterator properties. Run as well as compiling. * testsuite/26_numerics/valarray/range_access2.cc: Likewise. * testsuite/26_numerics/valarray/103022.cc: New test. 2021-10-13 Jonathan Wakely Backported from master: 2021-10-13 Jonathan Wakely * testsuite/28_regex/match_results/102667.C: Moved to... * testsuite/28_regex/match_results/102667.cc: ...here. 2021-10-13 Jonathan Wakely Backported from master: 2021-09-17 Jonathan Wakely * testsuite/26_numerics/valarray/dr630-3.C: Moved to... * testsuite/26_numerics/valarray/dr630-3.cc: ...here. * testsuite/27_io/basic_iostream/cons/16251.C: Moved to... * testsuite/27_io/basic_iostream/cons/16251.cc: ...here. 2021-10-13 Jonathan Wakely Backported from master: 2021-09-16 Jonathan Wakely * include/bits/fs_path.h (advance): Remove non-deducible template parameter. 2021-10-13 Jonathan Wakely Backported from master: 2021-09-23 Jonathan Wakely PR libstdc++/102425 * src/c++11/system_error.cc (system_error_category::default_error_condition): Add 0 to switch. * testsuite/19_diagnostics/error_category/102425.cc: New test. 2021-10-13 Jonathan Wakely Backported from master: 2021-08-17 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdErrorCodePrinter): Define. (build_libstdcxx_dictionary): Register printer for std::error_code and std::error_condition. * testsuite/libstdc++-prettyprinters/cxx11.cc: Test it. 2021-10-13 Jonathan Wakely Backported from master: 2021-08-16 Jonathan Wakely * python/Makefile.am [GLIBCXX_BUILD_DEBUG] (install-data-local): Install another copy of the GDB hook. * python/Makefile.in: Regenerate. 2021-10-13 Jonathan Wakely * testsuite/27_io/filesystem/operations/remove_all.cc: Remove test directory after making it writable again. * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise. 2021-10-13 Jonathan Wakely Backported from master: 2021-10-11 Jonathan Wakely PR libstdc++/102667 * include/bits/regex.h (match_result::empty()): Optimize by calling the base function directly. (match_results::end()): Check _Base_type::empty() not empty(). * testsuite/28_regex/match_results/102667.C: New test. 2021-08-11 Jonathan Wakely Backported from master: 2021-08-11 Jonathan Wakely PR libstdc++/101866 * testsuite/experimental/random/randint.cc: Loop and retry if reseed() produces the same sequence. 2021-08-11 Jonathan Wakely Backported from master: 2021-07-20 Jonathan Wakely PR libstdc++/101510 * src/c++17/fs_ops.cc (fs::create_directories): Use status instead of symlink_status. * src/filesystem/ops.cc (fs::create_directories): Likewise. * testsuite/27_io/filesystem/operations/create_directories.cc: Check symlink to existing directory. * testsuite/27_io/filesystem/operations/create_directory.cc: Do not test with symlinks on Windows. * testsuite/experimental/filesystem/operations/create_directories.cc: Check symlink to existing directory. * testsuite/experimental/filesystem/operations/create_directory.cc: Do not test with symlinks on Windows. 2021-08-11 Jonathan Wakely Backported from master: 2021-07-20 Jonathan Wakely PR libstdc++/101510 * src/c++17/fs_ops.cc (create_dir): Adjust whitespace. * testsuite/27_io/filesystem/operations/create_directory.cc: Test creating directory with name of existing symlink to directory. * testsuite/experimental/filesystem/operations/create_directory.cc: Likewise. 2021-08-02 Jonathan Wakely Backported from master: 2021-02-12 Jonathan Wakely PR libstdc++/88881 * src/c++17/fs_ops.cc (fs::symlink_status): Re-enable workaround. 2021-08-02 Jonathan Wakely Backported from master: 2021-02-10 Jonathan Wakely PR libstdc++/88881 * src/c++17/fs_ops.cc (fs::status): Re-enable workaround. 2021-07-22 Jonathan Wakely * testsuite/ext/profile/mutex_extensions_neg.cc: Prune additional errors in C++20 mode. 2021-07-22 Jonathan Wakely Backported from master: 2021-04-15 Jonathan Wakely PR libstdc++/96657 * libsupc++/Makefile.am: Add atomicity.cc here. * src/c++98/Makefile.am: Remove it from here. * libsupc++/Makefile.in: Regenerate. * src/c++98/Makefile.in: Regenerate. * testsuite/18_support/exception_ptr/96657.cc: New test. 2021-07-22 Jonathan Wakely Backported from master: 2021-06-14 Jonathan Wakely PR libstdc++/101034 * include/std/any (any(in_place_t, initializer_list, A&&...)) (any::emplace(initializer_list, A&&...)): Fix constraint to use lvalue. * testsuite/20_util/any/cons/101034.cc: New test. 2021-07-22 Jonathan Wakely Backported from master: 2020-04-23 Kamlesh Kumar Jonathan Wakely PR libstdc++/90415 PR libstdc++/92156 * include/std/any (any): Rename template parameters for consistency with the standard. (any::_Decay): Rename to _Decay_if_not_any. (any::any(T&&)): Remove is_constructible from constraints. Remove non-standard overload. (any::any(in_place_type_t, Args&&...)) (any::any(in_place_type_t, initializer_list, Args&&...)) (any::emplace(Args&&...)) (any::emplace(initializer_list, Args&&...)): Use decay_t instead of _Decay. * testsuite/20_util/any/cons/90415.cc: New test. * testsuite/20_util/any/cons/92156.cc: New Test. * testsuite/20_util/any/misc/any_cast_neg.cc: Make dg-error directives more robust. * testsuite/20_util/any/modifiers/92156.cc: New test. 2021-07-22 Jonathan Wakely Backported from master: 2021-06-09 Jonathan Wakely PR libstdc++/100982 * include/std/optional (optional::operator=(const optional&)): Fix value category used in is_assignable check. * testsuite/20_util/optional/assignment/100982.cc: New test. 2021-06-18 Jonathan Wakely Backported from master: 2021-06-18 Jonathan Wakely PR libstdc++/95833 * include/std/numeric (reduce(Iter, Iter, T, BinaryOp)): Replace incorrect static_assert with ones matching the 'Mandates' conditions in the standard. * testsuite/26_numerics/reduce/95833.cc: New test. 2021-06-18 Jonathan Wakely Backported from master: 2021-05-17 Jonathan Wakely PR libstdc++/100630 * include/bits/fs_path.h (__is_constructible_from): Test construction from a const lvalue, not an rvalue. * include/experimental/bits/fs_path.h (__is_constructible_from): Likewise. * testsuite/27_io/filesystem/path/construct/100630.cc: New test. * testsuite/experimental/filesystem/path/construct/100630.cc: New test. 2021-06-18 Jonathan Wakely Backported from master: 2021-05-04 Jonathan Wakely PR libstdc++/100384 * include/std/variant (__get_t): New alias template yielding the return type of std::get on a variant. (__visit_result_t): New alias template yielding the result of std::visit. (__do_visit): Use __get_t. (visit): Use __visit_result_t for return type. * testsuite/20_util/variant/100384.cc: New test. 2021-06-18 Jonathan Wakely Backported from master: 2021-04-22 Jonathan Wakely PR libstdc++/99006 * include/bits/shared_ptr.h (allocate_shared): Assert that _Tp is not an array type. * include/bits/shared_ptr_base.h (__allocate_shared): Likewise. * testsuite/20_util/shared_ptr/creation/99006.cc: New test. 2021-06-18 Jonathan Wakely Backported from master: 2021-06-17 Jonathan Wakely PR libstdc++/91488 * include/bits/char_traits.h (__constant_string_p) (__constant_array_p): Give external linkage. 2021-06-18 Jonathan Wakely Backported from master: 2021-03-11 Jonathan Wakely * python/libstdcxx/v6/printers.py (find_type): Use tag attribute instead of unqualified() method. 2021-06-01 Release Manager * GCC 9.4.0 released. 2021-05-01 Iain Sandoe Jakub Jelinek PR target/97865 * configure: Regenerate. 2021-04-30 Jonathan Wakely Backported from master: 2021-04-30 Jonathan Wakely * include/bits/basic_string.h (__cpp_lib_constexpr_string): Only define for C++17 and later. 2021-04-29 Jonathan Wakely Backported from master: 2021-04-26 Jonathan Wakely PR libstdc++/100259 * include/experimental/internet (net::ip::make_error_code) (net::ip::make_error_condition, net::ip::make_network_v4) (net::ip::operator==(const udp&, const udp&)): Add 'inline'. 2021-04-29 Jonathan Wakely Backported from master: 2021-04-28 Jonathan Wakely * include/bits/basic_string.h (__cpp_lib_constexpr_string): Define. * include/std/version (__cpp_lib_constexpr_string): Define. * testsuite/21_strings/char_traits/requirements/constexpr_functions_c++17.cc: Check for __cpp_lib_constexpr_string. * testsuite/21_strings/char_traits/requirements/version.cc: New test. 2021-04-21 Jonathan Wakely Backported from master: 2021-04-21 Jonathan Wakely PR libstdc++/100180 * testsuite/experimental/net/internet/address/v6/members.cc: Require gthreads. 2021-04-20 Jakub Jelinek Backported from master: 2021-03-19 Jakub Jelinek PR libstdc++/99181 * testsuite/21_strings/char_traits/requirements/char/99181.cc: New test. 2021-04-20 Jakub Jelinek Backported from master: 2021-03-19 Jakub Jelinek PR libstdc++/99181 * include/bits/char_traits.h (char_traits::compare): For constexpr evaluation don't call __gnu_cxx::char_traits::compare but do the comparison loop directly. 2021-04-20 Jonathan Wakely Backported from master: 2020-06-04 Jonathan Wakely * include/bits/stl_algo.h (copy_n): Only call __copy_n for positive values. * testsuite/util/testsuite_iterators.h (random_access_iterator_wrapper::operator+=): Fix range check for negative values. * testsuite/25_algorithms/copy_n/5.cc: New test. 2021-04-20 Jonathan Wakely Backported from master: 2020-08-10 Jonathan Wakely * include/bits/stl_iterator.h (inserter): Do not deduce iterator type (LWG 561). * testsuite/24_iterators/insert_iterator/dr561.cc: New test. 2021-04-20 Jonathan Wakely Backported from master: 2019-06-20 Jonathan Wakely * testsuite/libstdc++-prettyprinters/simple.cc: Use non-palindromic vector for test. * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise. 2021-04-20 Michael Weghorn Backported from master: 2019-06-19 Michael Weghorn Jonathan Wakely PR libstdc++/90945 * python/libstdcxx/v6/printers.py (StdVectorPrinter._iterator): Use values of type bool for vector elements. * testsuite/libstdc++-prettyprinters/simple.cc: Test vector. * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise. 2021-04-20 Jonathan Wakely PR libstdc++/94854 * include/bits/basic_string.tcc: Update comment about explicit instantiations. 2021-04-20 Jonathan Wakely Backported from master: 2020-08-11 Jonathan Wakely * include/experimental/executor (system_context::_M_run()): Fix predicate. (system_context::join()): Do not join unless joinable. * testsuite/experimental/net/system_context/1.cc: New test. 2021-04-20 Jonathan Wakely Backported from master: 2020-08-11 Jonathan Wakely * testsuite/30_threads/thread/cons/84535.cc: Use a custom namespace. * testsuite/30_threads/thread/cons/lwg2097.cc: Likewise. 2021-04-20 Jonathan Wakely Backported from master: 2020-10-27 Jonathan Wakely * src/c++17/fs_dir.cc (fs::directory_iterator::operator*): Add noexcept. Do not throw on precondition violation. 2021-04-20 Jonathan Wakely Backported from master: 2020-10-27 Jonathan Wakely * include/bits/fs_path.h (path::_List::begin, path::_List::end): Add noexcept to match definitions in src/c++17/fs_path.cc. 2021-04-20 Jonathan Wakely Backported from master: 2021-02-10 Jonathan Wakely * testsuite/27_io/filesystem/operations/proximate.cc: Fix typo in __MINGW32__ macro name. * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise. * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise. * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise. * testsuite/util/testsuite_fs.h: Likewise. 2021-04-20 Jonathan Wakely Backported from master: 2021-02-10 Jonathan Wakely * src/c++17/fs_ops.cc (fs::create_hard_link, fs::equivalent) (fs::remove): Use std::system_category() for error codes from GetLastError(). * src/filesystem/ops.cc (fs::create_hard_link, fs::remove): Likewise. 2021-04-20 Jonathan Wakely Backported from master: 2021-03-11 Jonathan Wakely PR libstdc++/99533 * src/c++17/fs_dir.cc (recursive_directory_iterator): Use new helper function to check for permission denied errors. * src/filesystem/dir.cc (recursive_directory_iterator): Likewise. * src/filesystem/dir-common.h (is_permission_denied_error): New helper function. 2021-04-20 Jonathan Wakely Backported from master: 2021-03-11 Jonathan Wakely PR libstdc++/99536 * include/bits/random.h (normal_distribution): Use default-initializer for _M_saved and _M_saved_available. 2021-04-20 Jonathan Wakely Backported from master: 2021-02-12 Jonathan Wakely * include/experimental/internet (address_v6::to_string): Include scope ID in string. (address_v6::loopback): Fix to be constexpr in C++14. * testsuite/experimental/net/internet/address/v6/members.cc: Test to_string() results. 2021-04-20 Jonathan Wakely Backported from master: 2021-02-12 Jonathan Wakely * include/experimental/internet (address_v6::any): Avoid using memcpy in constexpr function. (address_v6::loopback): Likewise. (make_address_v6): Fix missing return statements on error paths. * include/experimental/io_context: Avoid -Wdangling-else warning. * testsuite/experimental/net/internet/address/v4/members.cc: Remove unused variables. * testsuite/experimental/net/internet/address/v6/members.cc: New test. 2021-04-20 Nuno Lopes Backported from master: 2020-10-13 Nuno Lopes * include/bits/stl_algo.h (any_of): Fix incorrect description in comment. 2021-04-20 Jonathan Wakely Backported from master: 2020-10-12 Jonathan Wakely * include/bits/stl_algobase.h (copy, move, copy_backward) (move_backward): Fix documentation for returned iterator. 2021-04-20 Jonathan Wakely Backported from master: 2020-10-08 Jonathan Wakely PR libstdc++/82584 * include/bits/random.tcc (discrete_distribution::param_type::_M_initialize) (piecewise_constant_distribution::param_type::_M_initialize) (piecewise_linear_distribution::param_type::_M_initialize): Add assertions for positive sums.. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line. 2021-04-20 Jonathan Wakely Backported from master: 2021-02-03 Jonathan Wakely * testsuite/19_diagnostics/error_code/operators/not_equal.cc: Add comparison with same category and different values. * testsuite/19_diagnostics/error_code/operators/less.cc: Likewise. Fix comparison involving different categories. * testsuite/19_diagnostics/error_condition/operators/less.cc: Add comment. 2021-04-20 Jonathan Wakely Backported from master: 2020-11-25 Jonathan Wakely * testsuite/17_intro/names.cc: Do not test 'v' on AIX. 2021-04-20 Jonathan Wakely Backported from master: 2021-03-22 Jonathan Wakely * include/bits/range_access.h (begin(T (&)[N]), end(T (&)[N])): Add missing 'noexcept' as per LWG 2280. (rbegin(T (&)[N]), rend(T (&)[N]), rbegin(initializer_list)) (rend(initializer_list)): Add 'noexcept' as per LWG 3537. * testsuite/24_iterators/range_access.cc: Check for expected noexcept specifiers. Check result types of generic std::begin and std::end overloads. * testsuite/24_iterators/range_access_cpp14.cc: Check for expected noexcept specifiers. * testsuite/24_iterators/range_access_cpp17.cc: Likewise. 2021-04-19 Jonathan Wakely * testsuite/27_io/filesystem/path/generic/94242.cc: Do not test with minimal allocator when using COW strings. * testsuite/experimental/filesystem/path/generic/generic_string.cc: Likewise. 2021-04-19 Jonathan Wakely Backported from master: 2021-04-07 Jonathan Wakely PR libstdc++/99805 * src/c++17/fs_path.cc (path::_M_split_cmpts): Do not call non-const member on _M_pathname, to avoid copy-on-write. * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Check construction from strings that might be shared. 2021-04-19 Jonathan Wakely Backported from master: 2020-10-10 Jonathan Wakely PR libstdc++/97362 * doc/html/manual/source_code_style.html: Regenerate. * doc/xml/manual/appendix_contributing.xml: Add __deref to BADNAMES. * include/debug/functions.h (_Irreflexive_checker::__deref): Rename to __ref. 2021-04-19 Jonathan Wakely Backported from master: 2020-10-26 Jonathan Wakely PR libstdc++/97570 * libsupc++/new_opa.cc: Declare size_t in global namespace. Remove unused header. 2021-04-19 Jonathan Wakely Backported from master: 2020-12-16 Jonathan Wakely PR libstdc++/98319 * include/experimental/memory_resource: Add system_header pragma and only define contents for C++14 and later. * include/experimental/random: Only define contents for C++14 and later. * include/experimental/source_location: Likewise. * include/experimental/utility: Likewise. * testsuite/experimental/feat-lib-fund.cc: Include all LFTS headers that are present. Allow test to run for all modes. 2021-04-19 Jonathan Wakely Backported from master: 2021-02-12 Jonathan Wakely PR libstdc++/99077 * src/c++11/cxx11-ios_failure.cc (__ios_failure(const char*, int)): Change int parameter to error_code, to match std::ios_failure. (__throw_ios_failure(const char*, int)): Construct error_code from int parameter. 2021-04-19 Jonathan Wakely Backported from master: 2021-02-11 Jonathan Wakely PR libstdc++/99058 * doc/xml/manual/status_cxx2011.xml: Document when support became stable. * doc/xml/manual/status_cxx2014.xml: Likewise. * doc/xml/manual/status_cxx2017.xml: Likewise. * doc/html/manual/status.html: Regenerate. 2021-04-09 Jonathan Wakely PR bootstrap/99983 * include/bits/hashtable.h (_Hashtable): Fix noexcept-specifier on definition to match the one on the declaration. 2021-04-09 Jonathan Wakely Backported from master: 2021-04-09 Jonathan Wakely PR libstdc++/99985 * include/bits/hashtable.h (_Hashtable::_S_nothrow_move()): Fix to be a valid constexpr function in C++11. * testsuite/23_containers/unordered_set/cons/99985.cc: New test. 2021-04-09 Jonathan Wakely Backported from master: 2021-04-09 Jonathan Wakely * include/bits/fs_fwd.h: Fix doxygen group command. * include/bits/regex.h: Likewise. * include/bits/streambuf_iterator.h: Likewise. * include/bits/unique_lock.h: Likewise. * include/std/chrono: Likewise. * include/std/thread: Likewise. * include/tr1/complex: Likewise. 2021-04-08 Jonathan Wakely Backported from master: 2021-04-06 Jonathan Wakely * include/bits/alloc_traits.h: Use markdown for code font. * include/bits/basic_string.h: Fix @param names. * include/bits/regex.h: Fix duplicate @retval names, and rename. * include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp: Add group open to match existing group close. * include/ext/pb_ds/priority_queue.hpp: Add blank line before group open. 2021-04-08 Jonathan Wakely Backported from master: 2021-04-08 Jonathan Wakely * include/bits/random.h: Fix doxygen group commands. * include/bits/regex_constants.h: Likewise. * include/tr1/random.h: Likewise. 2021-04-08 Jonathan Wakely Backported from master: 2021-04-06 Jonathan Wakely * include/bits/atomic_base.h: Fix doxygen group close. * include/bits/basic_ios.h: Likewise. * include/bits/forward_list.h: Likewise. * include/bits/fs_dir.h: Likewise. * include/bits/fs_ops.h: Likewise. * include/bits/fs_path.h: Likewise. * include/bits/functional_hash.h: Likewise. * include/bits/gslice.h: Likewise. * include/bits/gslice_array.h: Likewise. * include/bits/hashtable_policy.h: Likewise. * include/bits/indirect_array.h: Likewise. * include/bits/locale_classes.h: Likewise. * include/bits/locale_facets.h: Likewise. * include/bits/locale_facets_nonio.h: Likewise. * include/bits/mask_array.h: Likewise. * include/bits/refwrap.h: Likewise. * include/bits/regex.h: Likewise. * include/bits/regex_automaton.h: Likewise. * include/bits/regex_compiler.h: Likewise. * include/bits/regex_constants.h: Likewise. * include/bits/regex_error.h: Likewise. * include/bits/regex_executor.h: Likewise. * include/bits/regex_scanner.h: Likewise. * include/bits/shared_ptr.h: Likewise. * include/bits/shared_ptr_atomic.h: Likewise. * include/bits/slice_array.h: Likewise. * include/bits/specfun.h: Likewise. * include/bits/std_function.h: Likewise. * include/bits/std_mutex.h: Likewise. * include/bits/stl_deque.h: Likewise. * include/bits/stl_iterator.h: Likewise. * include/bits/stl_iterator_base_types.h: Likewise. * include/bits/stl_map.h: Likewise. * include/bits/stl_multimap.h: Likewise. * include/bits/stl_multiset.h: Likewise. * include/bits/stl_numeric.h: Likewise. * include/bits/stl_set.h: Likewise. * include/bits/stream_iterator.h: Likewise. * include/bits/streambuf_iterator.h: Likewise. * include/bits/unique_ptr.h: Likewise. * include/bits/unordered_map.h: Likewise. * include/bits/unordered_set.h: Likewise. * include/decimal/decimal: Likewise. * include/experimental/any: Likewise. * include/experimental/array: Likewise. * include/experimental/bits/fs_dir.h: Likewise. * include/experimental/bits/fs_fwd.h: Likewise. * include/experimental/bits/fs_ops.h: Likewise. * include/experimental/bits/fs_path.h: Likewise. * include/experimental/buffer: Likewise. * include/experimental/internet: Likewise. * include/experimental/optional: Likewise. * include/experimental/propagate_const: Likewise. * include/experimental/socket: Likewise. * include/ext/pb_ds/assoc_container.hpp: Likewise. * include/ext/pb_ds/detail/priority_queue_base_dispatch.hpp: Likewise. * include/ext/pb_ds/detail/tree_policy/node_metadata_selector.hpp: Likewise. * include/ext/pb_ds/detail/trie_policy/node_metadata_selector.hpp: Likewise. * include/ext/pb_ds/detail/types_traits.hpp: Likewise. * include/ext/pb_ds/exception.hpp: Likewise. * include/ext/pb_ds/priority_queue.hpp: Likewise. * include/ext/pb_ds/tag_and_trait.hpp: Likewise. * include/ext/random: Likewise. * include/std/any: Likewise. * include/std/atomic: Likewise. * include/std/bitset: Likewise. * include/std/complex: Likewise. * include/std/condition_variable: Likewise. * include/std/fstream: Likewise. * include/std/future: Likewise. * include/std/istream: Likewise. * include/std/iostream: Likewise. * include/std/mutex: Likewise. * include/std/numeric: Likewise. * include/std/ostream: Likewise. * include/std/ratio: Likewise. * include/std/shared_mutex: Likewise. * include/std/stdexcept: Likewise. * include/std/streambuf: Likewise. * include/std/valarray: Likewise. * include/std/variant: Likewise. * include/tr1/cmath: Likewise. * include/tr1/regex: Likewise. * include/tr2/dynamic_bitset: Likewise. * libsupc++/atomic_lockfree_defines.h: Likewise. * libsupc++/exception: Likewise. * libsupc++/exception.h: Likewise. * libsupc++/exception_ptr.h: Likewise. * libsupc++/nested_exception.h: Likewise. 2021-04-08 Jonathan Wakely Backported from master: 2021-04-08 Jonathan Wakely * include/std/string_view: Adjust Doxygen @file comment. 2021-04-08 François Dumont Backported from master: 2020-07-29 François Dumont PR libstdc++/96029 * include/bits/hashtable.h (_Hashtable(_Hashtable&& __ht, __node_alloc_type&& __a, true_type)): Add noexcept qualification. (_Hashtable(_Hashtable&&)): Fix noexcept qualification. (_Hashtable(_Hashtable&&, const allocator_type&)): Add noexcept qualification. * include/bits/unordered_map.h (unordered_map(unordered_map&&, const allocator_type&)): Add noexcept qualification. (unordered_multimap(unordered_multimap&&, const allocator_type&)): Likewise. * include/bits/unordered_set.h (unordered_set(unordered_set&&, const allocator_type&)): Likewise. (unordered_multiset(unordered_multiset&&, const allocator_type&)): Likewise. * include/debug/unordered_map (unordered_map(unordered_map&&, const allocator_type&)): Likewise. (unordered_multimap(unordered_multimap&&, const allocator_type&)): Likewise. * include/debug/unordered_set (unordered_set(unordered_set&&, const allocator_type&)): Likewise. (unordered_multiset(unordered_multiset&&, const allocator_type&)): Likewise. * testsuite/23_containers/unordered_map/allocator/default_init.cc: New test. * testsuite/23_containers/unordered_map/cons/noexcept_default_construct.cc: New test. * testsuite/23_containers/unordered_map/cons/noexcept_move_construct.cc: New test. * testsuite/23_containers/unordered_map/modifiers/move_assign.cc: New test. * testsuite/23_containers/unordered_multimap/cons/noexcept_default_construct.cc: New test. * testsuite/23_containers/unordered_multimap/cons/noexcept_move_construct.cc: New test. * testsuite/23_containers/unordered_multiset/cons/noexcept_default_construct.cc: New test. * testsuite/23_containers/unordered_multiset/cons/noexcept_move_construct.cc: New test. * testsuite/23_containers/unordered_set/allocator/default_init.cc: New test. * testsuite/23_containers/unordered_set/cons/noexcept_default_construct.cc: New test. * testsuite/23_containers/unordered_set/cons/noexcept_move_construct.cc: New test. 2021-04-08 François Dumont Backported from master: 2020-07-08 François Dumont PR libstdc++/96029 * include/bits/stl_tree.h (_Rb_tree_impl(_Rb_tree_impl&&)): Add noexcept qualification based only on _Compare one. * testsuite/23_containers/map/cons/noexcept_move_construct.cc: Add static asserts. * testsuite/23_containers/multimap/cons/noexcept_move_construct.cc: Likewise. * testsuite/23_containers/multiset/cons/noexcept_move_construct.cc: Likewise. * testsuite/23_containers/set/cons/noexcept_move_construct.cc: Likewise. 2021-01-13 Jonathan Wakely Backported from master: 2021-01-13 Jonathan Wakely PR libstdc++/98605 * include/std/mutex (call_once): Use NOLINT to suppress clang analyzer warnings. 2021-01-11 Jonathan Wakely Backported from master: 2020-09-24 Jonathan Wakely * doc/xml/manual/configure.xml: Correct name of option. * doc/html/*: Regenerate. 2021-01-11 Jonathan Wakely Backported from master: 2020-12-02 Jonathan Wakely * python/libstdcxx/v6/printers.py (StdExpPathPrinter): Store the name of the type and pass it to the iterator. (StdPathPrinter): Likewise. * testsuite/libstdc++-prettyprinters/filesystem-ts.cc: New test. 2021-01-11 Jonathan Wakely Backported from master: 2020-12-16 Jonathan Wakely PR libstdc++/96083 * include/ext/throw_allocator.h: Use __has_builtin to check for __builtin_sprintf support, and use std::sprintf if necessary. 2021-01-11 Jonathan Wakely Backported from master: 2020-12-02 Jonathan Wakely PR libstdc++/65480 PR libstdc++/68735 * python/libstdcxx/v6/printers.py (function_pointer_to_name): New helper function to get the name of a function from its address. (StdExpAnyPrinter.__init__): Use it. 2021-01-11 Jonathan Wakely Backported from master: 2020-08-10 Jonathan Wakely * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__): Use gdb.Type.strip_typedefs(). * testsuite/libstdc++-prettyprinters/compat.cc: Use a typedef in the emulated old type. 2021-01-11 Jonathan Wakely Backported from master: 2019-05-14 Jonathan Wakely * python/libstdcxx/v6/printers.py (UniquePointerPrinter.__init__): Do not assume field called _M_head_impl is the first tuple element. * testsuite/libstdc++-prettyprinters/compat.cc: Make tuple implementation more accurate. * testsuite/libstdc++-prettyprinters/cxx11.cc: Check unique_ptr with empty pointer type and non-empty deleter. 2021-01-11 François Dumont Backported from master: 2019-12-20 François Dumont * python/libstdcxx/v6/printers.py (lookup_node_type): Remove redundant call to lookup_node_type. * testsuite/libstdc++-prettyprinters/80276.cc: Define _GLIBCXX_USE_CXX11_ABI to 0. * testsuite/libstdc++-prettyprinters/91997.cc: Use regexp-test to check 'a' content. 2021-01-11 Jonathan Wakely Backported from master: 2019-11-29 Jonathan Wakely PR libstdc++/91997 * python/libstdcxx/v6/printers.py (find_type): Fail more gracefully if we run out of base classes to look at. (llokup_templ_spec, lookup_node_type): New utilities to find node types for node-based containers. (StdListPrinter.children, NodeIteratorPrinter.__init__) (NodeIteratorPrinter.to_string, StdSlistPrinter.children) (StdSlistIteratorPrinter.to_string, StdRbtreeIteratorPrinter.__init__) (StdMapPrinter.children, StdSetPrinter.children) (StdForwardListPrinter.children): Use lookup_node_type instead of find_type. (StdListIteratorPrinter.__init__, StdFwdListIteratorPrinter.__init__): Pass name of node type to NodeIteratorPrinter constructor. (Tr1HashtableIterator.__init__): Rename argument. (StdHashtableIterator.__init__): Likewise. Use lookup_templ_spec instead of find_type. * testsuite/libstdc++-prettyprinters/59161.cc: Remove workaround for _Node typedef not being present in debuginfo. * testsuite/libstdc++-prettyprinters/91997.cc: New test. 2021-01-11 Jonathan Wakely Backported from master: 2020-07-31 Jonathan Wakely * testsuite/experimental/filesystem/filesystem_error/cons.cc: Remove -std=gnu++17 option. 2020-11-26 Jonathan Wakely Backported from master: 2020-11-26 Jonathan Wakely PR libstdc++/98001 * testsuite/ext/stdio_filebuf/char/79820.cc: Do not pass invalid FILE* to constructor. 2020-11-17 Jonathan Wakely Backported from master: 2020-05-04 Jonathan Wakely PR libstdc++/94936 * src/c++17/memory_resource.cc (synchronized_pool_resource::_TPools): Add comment about single-threaded behaviour. (synchronized_pool_resource::_TPools::move_nonempty_chunks()): Hoist class member access out of loop. (synchronized_pool_resource::synchronized_pool_resource()) (synchronized_pool_resource::~synchronized_pool_resource()) (synchronized_pool_resource::release()): Check __gthread_active_p before creating and/or deleting the thread-specific data key. (synchronized_pool_resource::_M_thread_specific_pools()): Adjust assertions. (synchronized_pool_resource::do_allocate(size_t, size_t)): Add fast path for single-threaded case. (synchronized_pool_resource::do_deallocate(void*, size_t, size_t)): Likewise. Return if unable to find a pool that owns the allocation. * testsuite/20_util/synchronized_pool_resource/allocate_single.cc: New test. * testsuite/20_util/synchronized_pool_resource/cons_single.cc: New test. * testsuite/20_util/synchronized_pool_resource/release_single.cc: New test. 2020-11-13 Jonathan Wakely Backported from master: 2020-11-13 Jonathan Wakely PR libstdc++/97798 * include/ext/numeric_traits.h (__glibcxx_signed) (__glibcxx_digits, __glibcxx_min, __glibcxx_max): Remove macros. (__is_integer_nonstrict::__width): Define new constant. (__numeric_traits_integer): Define constants in terms of each other and __is_integer_nonstrict::__width, rather than the removed macros. (_GLIBCXX_INT_N_TRAITS): Macro to define explicit specializations for non-standard integer types. 2020-11-13 Patrick Palka Backported from master: 2020-09-22 Patrick Palka * include/bits/stl_algo.h (__sample): Exit early when the input range is empty. * testsuite/25_algorithms/sample/3.cc: New test. 2020-11-09 Jonathan Wakely Backported from master: 2020-11-05 Jonathan Wakely PR libstdc++/97731 * src/filesystem/dir.cc (recursive_directory_iterator): Call the right overload of _Dir::advance. * testsuite/experimental/filesystem/iterators/97731.cc: New test. 2020-10-19 Jonathan Wakely Backported from master: 2020-09-21 Jonathan Wakely PR libstdc++/97132 * include/std/memory (assume_aligned): Do not use __builtin_assume_aligned during constant evaluation. * testsuite/20_util/assume_aligned/1.cc: Improve test. * testsuite/20_util/assume_aligned/97132.cc: New test. 2020-10-08 Jonathan Wakely Backported from master: 2020-10-07 Jonathan Wakely * include/bits/random.h (seed_seq(initializer_list)): Rename parameter to use reserved name. * testsuite/17_intro/names.cc: Check "il". 2020-09-22 Jonathan Wakely Backported from master: 2020-09-22 Jonathan Wakely PR libstdc++/97167 * src/c++17/fs_path.cc (path::_Parser::root_path()): Check for empty string before inspecting the first character. * testsuite/27_io/filesystem/path/append/source.cc: Append empty string_view to path. 2020-09-22 Jonathan Wakely Backported from master: 2020-09-22 Jonathan Wakely PR libstdc++/96803 * include/std/tuple (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl&)): Use correct value category in __use_alloc call. * testsuite/20_util/tuple/cons/96803.cc: Check with constructors that require correct value category to be used. 2020-09-22 Jonathan Wakely Backported from master: 2020-08-26 Jonathan Wakely PR libstdc++/96803 * include/std/tuple (_Tuple_impl(allocator_arg_t, Alloc, const _Tuple_impl&)): Replace parameter pack with a type parameter and a pack and pass the first type to __use_alloc. * testsuite/20_util/tuple/cons/96803.cc: New test. 2020-09-21 Jonathan Wakely Backported from master: 2020-08-28 Jonathan Wakely PR libstdc++/92978 * include/std/numeric (__abs_integral): Replace with ... (__detail::__absu): New function template that returns an unsigned type, guaranteeing it can represent the most negative signed value. (__detail::__gcd, __detail::__lcm): Require arguments to be unsigned and therefore already non-negative. (gcd, lcm): Convert arguments to absolute value as unsigned type before calling __detail::__gcd or __detail::__lcm. * include/experimental/numeric (gcd, lcm): Likewise. * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust expected errors. * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise. * testsuite/26_numerics/gcd/92978.cc: New test. * testsuite/26_numerics/lcm/92978.cc: New test. * testsuite/experimental/numeric/92978.cc: New test. 2020-09-21 Jonathan Wakely Backported from master: 2020-08-10 Jonathan Wakely PR libstdc++/94681 * src/c++17/fs_ops.cc (read_symlink): Use posix::lstat instead of calling ::lstat directly. * src/filesystem/ops.cc (read_symlink): Likewise. 2020-09-21 Jonathan Wakely Backported from master: 2020-08-10 Jonathan Wakely PR libstdc++/94681 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Do not depend on $enable_libstdcxx_filesystem_ts. * configure: Regenerate. 2020-09-21 Jonathan Wakely Backported from master: 2020-09-20 Jonathan Wakely PR libstdc++/97101 * include/std/functional (bind_front): Fix order of parameters in is_nothrow_constructible_v specialization. * testsuite/20_util/function_objects/bind_front/97101.cc: New test. 2020-09-21 Jonathan Wakely Backported from master: 2020-09-10 Jonathan Wakely PR libstdc++/94160 * src/c++17/memory_resource.cc (munge_options): Round max_blocks_per_chunk to a multiple of four. (__pool_resource::_M_alloc_pools()): Simplify slightly. * testsuite/20_util/unsynchronized_pool_resource/allocate.cc: Check that valid pointers are returned when small values are used for max_blocks_per_chunk. 2020-09-11 Jonathan Wakely Backported from master: 2020-03-18 Jonathan Wakely PR libstdc++/94033 * include/std/type_traits (__is_nt_default_constructible_atom): Remove. (__is_nt_default_constructible_impl): Remove. (__is_nothrow_default_constructible_impl): Remove. (__is_nt_constructible_impl): Add bool template parameter. Adjust partial specializations. (__is_nothrow_constructible_impl): Replace class template with alias template. (is_nothrow_default_constructible): Derive from alias template __is_nothrow_constructible_impl instead of __is_nothrow_default_constructible_impl. * testsuite/20_util/is_nothrow_constructible/94003.cc: New test. * testsuite/20_util/is_nothrow_default_constructible/96999.cc: New file. 2020-09-03 Jonathan Wakely Backported from master: 2020-04-30 Jonathan Wakely PR libstdc++/89510 * include/bits/alloc_traits.h (allocator_traits::_S_construct) (allocator_traits::_S_destroy) (allocator_traits>::construct): Use traits in noexcept-specifiers. * include/bits/allocator.h (allocator::construct) (allocator::destroy): Likewise. * include/ext/malloc_allocator.h (malloc_allocator::construct) (malloc_allocator::destroy): Likewise. * include/ext/new_allocator.h (new_allocator::construct) (new_allocator::destroy): Likewise. * testsuite/20_util/allocator/89510.cc: New test. * testsuite/ext/malloc_allocator/89510.cc: New test. * testsuite/ext/new_allocator/89510.cc: New test. 2020-08-26 Jonathan Wakely Backported from master: 2020-08-26 Jonathan Wakely PR libstdc++/71960 * include/experimental/string_view (basic_string_view): Enable debug assertions. * include/std/string_view (basic_string_view): Likewise. 2020-08-26 Jonathan Wakely Backported from master: 2020-08-24 Jonathan Wakely PR libstdc++/96766 * include/std/variant (_Variant_storage): Replace implicit conversions from size_t to __index_type with explicit casts. 2020-08-19 Jonathan Wakely Backported from master: 2020-08-19 Jonathan Wakely * include/bits/c++config (_GLIBCXX_DEPRECATED_SUGGEST): New macro for "use 'foo' instead" message in deprecated warnings. * include/bits/ios_base.h (io_state, open_mode, seek_dir) (streampos, streamoff): Use _GLIBCXX_DEPRECATED_SUGGEST. * include/std/streambuf (stossc): Replace C++11 attribute with _GLIBCXX_DEPRECATED_SUGGEST. * testsuite/27_io/types/1.cc: Check for deprecated warnings. Also check for io_state, open_mode and seek_dir typedefs. 2020-08-11 Andrea Corallo Backported from master: 2020-04-02 Andrea Corallo * testsuite/experimental/net/execution_context/use_service.cc: Require pthread and gthreads. 2020-08-11 Jonathan Wakely PR libstdc++/89760 * testsuite/experimental/net/execution_context/make_service.cc: Add dg-require-gthreads. * testsuite/experimental/net/executor/1.cc: Likewise. * testsuite/experimental/net/headers.cc: Likewise. * testsuite/experimental/net/internet/address/v4/comparisons.cc: Likewise. * testsuite/experimental/net/internet/address/v4/cons.cc: Likewise. * testsuite/experimental/net/internet/address/v4/creation.cc: Likewise. * testsuite/experimental/net/internet/address/v4/members.cc: Likewise. * testsuite/experimental/net/internet/resolver/base.cc: Likewise. * testsuite/experimental/net/internet/resolver/ops/lookup.cc: Likewise. * testsuite/experimental/net/internet/resolver/ops/reverse.cc: Likewise. * testsuite/experimental/net/timer/waitable/cons.cc: Likewise. * testsuite/experimental/net/timer/waitable/dest.cc: Likewise. * testsuite/experimental/net/timer/waitable/ops.cc: Likewise. 2020-08-10 Jonathan Wakely Backported from master: 2020-08-10 Jonathan Wakely PR libstdc++/95749 * src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (stat_type): Change to __stat64. (stat): Use _wstat64. 2020-08-07 Jonathan Wakely Backported from master: 2020-03-21 Jonathan Wakely PR libstdc++/93245 * include/experimental/bits/fs_path.h (path::generic_string()): Return the generic format path, not the native one. * testsuite/experimental/filesystem/path/generic/generic_string.cc: Improve test coverage. 2020-08-07 Jonathan Wakely Backported from master: 2020-03-21 Jonathan Wakely PR libstdc++/94242 * include/bits/fs_path.h (path::_S_str_convert): Replace first parameter with basic_string_view so that strings with different allocators can be accepted. (path::generic_string()): Use basic_string object that uses the right allocator type. * testsuite/27_io/filesystem/path/generic/94242.cc: New test. * testsuite/27_io/filesystem/path/generic/generic_string.cc: Improve test coverage. 2020-08-06 Jonathan Wakely Backported from master: 2020-08-06 Jonathan Wakely PR libstdc++/96484 * src/c++17/fs_ops.cc (fs::read_symlink): Return an error immediately for non-symlinks. * src/filesystem/ops.cc (fs::read_symlink): Likewise. 2020-07-02 Ville Voutilainen Backported from master: 2020-07-02 Ville Voutilainen PR libstdc++/91807 * include/std/variant (_Copy_assign_base::operator=(const _Copy_assign_base&): Do the move-assignment from a temporary so that the temporary is constructed with an explicit index. * testsuite/20_util/variant/91807.cc: New. 2020-07-01 Jonathan Wakely Backported from master: 2020-07-01 Jonathan Wakely PR libstdc++/94627 * include/bits/regex.h (operator==, operator!=): Remove noexcept equality comparisons for match_results. * testsuite/28_regex/match_results/94627.cc: New test. 2020-06-24 Jonathan Wakely Backported from master: 2020-06-24 Jonathan Wakely * include/std/charconv (__from_chars_binary): Ignore leading zeros. * testsuite/20_util/from_chars/1.cc: Check "0x1" for all bases, not just 10 and 16. * testsuite/20_util/from_chars/3.cc: New test. 2020-05-12 Jonathan Wakely Backport from mainline 2020-05-04 Jonathan Wakely PR libstdc++/94906 * src/c++17/memory_resource.cc (monotonic_buffer_resource::_Chunk::release): Use size_t for shift operands. 2020-05-07 Eric Botcazou * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise. 2020-05-07 Rainer Orth * config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate. * config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise. * config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise. * config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt: Likewise. 2020-05-06 Jonathan Wakely * doc/xml/manual/abi.xml (abi.versioning.history): Document library versions for GCC 9.[123] and 10.1 releases. * doc/html/*: Regenerate. 2020-05-06 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/i386-linux-gnu/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/powerpc64-linux-gnu/baseline_symbols.txt: Update. 2020-05-04 Jonathan Wakely * doc/xml/faq.xml: Use working link for SGI STL FAQ. * doc/html/*: Regenerate. 2020-04-24 Jonathan Wakely Backport from mainline 2020-03-18 Jonathan Wakely PR libstdc++/94203 * include/experimental/executor (executor::executor(Executor)): Call make_shared directly instead of _M_create. Create _Tgt1 object. (executor::executor(allocator_arg_t, const ProtoAlloc&, Executor)): Call allocate_shared directly instead of _M_create. Create _Tgt2 object. (executor::target_type): Add cast needed for new _Tgt interface. (executor::target): Define when RTTI is disabled. Use _Tgt::_M_func. (executor::_Tgt): Define the same interface whether RTTI is enabled or not. (executor::_Tgt::target_type, executor::_Tgt::target): Do not use std::type_info in the interface. (executor::_Tgt::_M_func): Add data member. (executor::_TgtImpl): Replace with _Tgt1 and _Tgt2 class templates. (executor::_Tgt1::_S_func): Define function to access target without depending on RTTI. (executor::_M_create): Remove. (operator==, operator!=): Simplify comparisons for executor. * include/experimental/socket (is_error_code_enum): Define specialization before use. Backport from mainline 2020-04-24 Jonathan Wakely * include/experimental/executor (service_already_exists): Make default constructor public (LWG 3414). * testsuite/experimental/net/execution_context/make_service.cc: Check the service_already_exists can be default constructed. 2020-04-23 Thomas Rodgers Backport from mainline 2020-04-23 Thomas Rodgers * include/experimental/net/executor (system_context): Mark system_context::system_context() = delete. * testsuite/experimental/net/executor/1.cc: Add new test to check system_context is not default constructible. 2020-04-23 Thomas Rodgers Backport from mainline 2020-04-20 Thomas Rodgers * testsuite/lib/libstdc++.exp: Add additional_flags= -DTBB_SUPRESS_DEPRECATED_MESSAGES=1 to suppress warnings when compiling with a newer Thread Building Blocks. 2020-04-23 Jonathan Wakely Backport from mainline 2020-04-22 Jonathan Wakely * include/std/execution (__cpp_lib_execution): Define to indicate support for P0024R2 and P1001R2. * include/std/version (__cpp_lib_execution): Define. * testsuite/25_algorithms/pstl/feature_test.cc: Only test macro defined by , move other tests to new tests ... * testsuite/25_algorithms/pstl/feature_test-2.cc: New test. * testsuite/25_algorithms/pstl/feature_test-3.cc: New test. * testsuite/25_algorithms/pstl/feature_test-4.cc: New test. * testsuite/25_algorithms/pstl/feature_test-5.cc: New test. * include/bits/stl_iterator.h (__cpp_lib_array_constexpr): Update value to indicate P0858R0 support. * include/std/string_view (__cpp_lib_string_view): Likewise. * include/std/version (__cpp_lib_array_constexpr) (__cpp_lib_string_view): Likewise. * testsuite/23_containers/array/element_access/constexpr_c++17.cc: New test. * testsuite/23_containers/array/requirements/constexpr_iter.cc: Test in C++17 mode and check feature test macro. Backport from mainline 2020-04-22 Jonathan Wakely * include/bits/ptr_traits.h (__cpp_lib_constexpr_memory): Define to indicate P1006R1 support. (__cpp_lib_to_address): Define to indicate P0653R2 support. * include/std/memory (__cpp_lib_assume_aligned): Define to indicate P1007R3 support. * include/std/memory_resource (__cpp_lib_polymorphic_allocator): Define to indicate P0339R6 support. * include/std/string_view (__cpp_lib_starts_ends_with): Define to indicate P0457R2 support. * include/std/type_traits (__cpp_lib_is_nothrow_convertible): Define to indicate P0758R1 support. (__cpp_lib_remove_cvref): Define to indicate P0550R2 support. (__cpp_lib_type_identity): Define to indicate P0887R1 support. * include/std/version (__cpp_lib_is_nothrow_convertible) (__cpp_lib_remove_cvref, __cpp_lib_type_identity) (__cpp_lib_assume_aligned, __cpp_lib_constexpr_memory) (__cpp_lib_polymorphic_allocator, __cpp_lib_starts_ends_with) (__cpp_lib_to_address): Define. * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number. * include/bits/stl_map.h (__cpp_lib_map_insertion): Add comment to non-standard macro. * include/bits/unordered_map.h (__cpp_lib_unordered_map_insertion): Likewise. * include/std/version (__cpp_lib_map_insertion) (__cpp_lib_unordered_map_insertion): Likewise. * include/std/bit (__cpp_lib_int_pow2): Define to indicate P0556R3 support. * include/std/version (__cpp_lib_int_pow2): Likewise. Backport from mainline 2019-12-10 Jonathan Wakely * include/std/complex (__cpp_lib_constexpr_complex): Define. * include/std/version (__cpp_lib_constexpr_complex): Likewise. * testsuite/26_numerics/complex/1.cc: New test. * testsuite/26_numerics/complex/2.cc: New test. Backport from mainline 2019-11-05 Jonathan Wakely * include/std/version [!_GLIBCXX_HOSTED]: Do not define feature test macros for features that are only present in hosted builds. Backport from mainline 2019-10-30 Jonathan Wakely * include/std/bit (__cpp_lib_bitops): Define. * include/std/version (__cpp_lib_bitops): Define. * testsuite/26_numerics/bit/header.cc: New test. * testsuite/26_numerics/bit/header-2.cc: New test. Backport from mainline 2020-02-19 Jonathan Wakely * include/std/type_traits (__cpp_lib_unwrap_ref): Define (LWG 3348). * include/std/version (__cpp_lib_unwrap_ref): Likewise. * testsuite/20_util/unwrap_reference/1.cc: Check macro. * testsuite/20_util/unwrap_reference/3.cc: New test. 2020-04-22 Jonathan Wakely * doc/Makefile.am (xml_sources_manual): Add missing XML files. * doc/Makefile.in: Regenerate. * doc/xml/manual/status_cxx1998.xml: Refer to "this section" instead of "this page". * doc/xml/manual/status_cxx2011.xml: Formatting and other corrections to the C++11 status table. * doc/xml/manual/status_cxx2014.xml: Replace list of C++14 feature proposals with table matching contents of the C++14 standard. * doc/html/*: Regenerate. Backport from mainline 2020-02-15 Jonathan Wakely * include/bits/erase_if.h (__cpp_lib_erase_if): Define to 202002L. * include/std/deque (__cpp_lib_erase_if): Likewise. * include/std/forward_list (__cpp_lib_erase_if): Likewise. * include/std/list (__cpp_lib_erase_if): Likewise. * include/std/string (__cpp_lib_erase_if): Likewise. * include/std/vector (__cpp_lib_erase_if): Likewise. * include/std/version (__cpp_lib_erase_if): Likewise. * testsuite/21_strings/basic_string/erasure.cc: Test for new value. * testsuite/23_containers/deque/erasure.cc: Likewise. * testsuite/23_containers/forward_list/erasure.cc: Likewise. * testsuite/23_containers/list/erasure.cc: Likewise. * testsuite/23_containers/map/erasure.cc: Likewise. * testsuite/23_containers/set/erasure.cc: Likewise. * testsuite/23_containers/unordered_map/erasure.cc: Likewise. * testsuite/23_containers/unordered_set/erasure.cc: Likewise. * testsuite/23_containers/vector/erasure.cc: Likewise. 2020-04-21 Jonathan Wakely * doc/xml/manual/status_cxx2017.xml: Fix name of feature test macro. * doc/html/*: Regenerate. 2020-04-03 Jonathan Wakely Backport from mainline 2020-04-03 Jonathan Wakely PR libstdc++/93960 * include/bits/ptr_traits.h (__to_address): Add special case for debug iterators, to avoid dereferenceable check. * testsuite/20_util/to_address/1_neg.cc: Adjust dg-error line number. * testsuite/20_util/to_address/debug.cc: New test. 2020-03-16 Jonathan Wakely Backport from mainline 2020-03-16 Jonathan Wakely PR libstdc++/94199 * include/experimental/executor (service_already_exists): Add default constructor. Declare make_service to be a friend. * testsuite/experimental/net/execution_context/make_service.cc: New test. 2020-03-12 Jonathan Wakely Backport from mainline 2020-03-09 Jonathan Wakely PR libstdc++/94063 * src/c++17/fs_path.cc (path::operator+=(const path&)): Add kluge to handle concatenations that change the type of the first component. (path::operator+=(basic_string_view)): Likewise. * testsuite/27_io/filesystem/path/concat/94063.cc: New test. Backport from mainline 2020-02-04 Jonathan Wakely * include/std/functional (_GLIBCXX_NOT_FN_CALL_OP): Un-define after use. Backport from mainline 2020-03-12 Jonathan Wakely * testsuite/tr1/8_c_compatibility/cstdlib/functions.cc: Do not pass a null pointer to functions with nonnull(1) attribute. Backport from mainline 2020-02-28 Jonathan Wakely * testsuite/27_io/filesystem/operations/last_write_time.cc: Fixes for filesystems that silently truncate timestamps. * testsuite/experimental/filesystem/operations/last_write_time.cc: Likewise. Backport from mainline 2020-01-13 Jonathan Wakely PR libstdc++/93244 * include/bits/fs_path.h (path::generic_string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Convert root-dir to forward-slash. * testsuite/27_io/filesystem/path/generic/generic_string.cc: Check root-dir is converted to forward slash in generic pathname. * testsuite/27_io/filesystem/path/generic/utf.cc: New test. * testsuite/27_io/filesystem/path/generic/wchar_t.cc: New test. 2020-03-12 Release Manager * GCC 9.3.0 released. 2020-03-06 Jonathan Wakely Backport from mainline 2020-03-06 Jonathan Wakely PR libstdc++/94069 * include/std/shared_mutex [!PTHREAD_RWLOCK_INITIALIZER] (__shared_mutex_pthread::__shared_mutex_pthread()): Remove incorrect second argument to __glibcxx_rwlock_init. * testsuite/30_threads/shared_timed_mutex/94069.cc: New test. 2020-03-05 Jonathan Wakely Backport from mainline 2020-03-05 Jonathan Wakely * testsuite/27_io/filesystem/operations/all.cc: Mark unused variable. * testsuite/27_io/filesystem/operations/copy.cc: Fix typo. * testsuite/experimental/filesystem/operations/copy.cc: Likewise. * testsuite/27_io/filesystem/operations/file_size.cc: Use correct type for return value, and in comparison. * testsuite/experimental/filesystem/operations/file_size.cc: Likewise. Backport from mainline 2019-09-27 Jonathan Wakely PR libstdc++/91910 * src/c++11/debug.cc (_Safe_iterator_base::_M_detach()): Load pointer atomically and lock the mutex before accessing the sequence. (_Safe_local_iterator_base::_M_detach()): Likewise. (_Safe_iterator_base::_M_reset()): Clear _M_sequence atomically. Backport from mainline 2019-06-17 Jonathan Wakely * include/c_global/cmath (__lerp, lerp): Add noexcept (LWG 3201). Backport from mainline 2019-11-07 Jonathan Wakely * include/bits/stl_algo.h (for_each_n): Handle negative count. * testsuite/25_algorithms/for_each/for_each_n_debug.cc: New test. Backport from mainline 2020-01-28 Jonathan Wakely PR libstdc++/93470 * include/bits/refwrap.h (reference_wrapper::operator()): Restrict static assertion to object types. 2020-01-28 Jonathan Wakely PR libstdc++/93325 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for clock_gettime instead of explicit glibc version check. * configure: Regenerate. 2020-03-01 H.J. Lu * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated. 2020-02-29 John David Anglin * testsuite/17_intro/headers/c++1998/charset.cc: Skip on *-*-hpux*. * testsuite/17_intro/headers/c++2011/charset.cc: Likewise. * testsuite/17_intro/headers/c++2014/charset.cc: Likewise. * testsuite/17_intro/headers/c++2017/charset.cc: Likewise. * testsuite/17_intro/headers/c++2020/charset.cc: Likewise. 2020-02-26 Jonathan Wakely Backport from mainline 2020-01-09 Jonathan Wakely PR libstdc++/93205 * include/bits/random.h (operator>>): Check stream operation succeeds. * include/bits/random.tcc (operator>>): Likewise. (__extract_params): New function to fill a vector from a stream. * testsuite/26_numerics/random/pr60037-neg.cc: Adjust dg-error line. Backport from mainline 2019-12-10 Jonathan Wakely PR libstdc++/92886 * include/bits/ios_base.h (std::ios_base::trunc): Fix comment. Backport from mainline 2020-01-28 Jonathan Wakely PR libstdc++/93325 * acinclude.m4 (GLIBCXX_ENABLE_LIBSTDCXX_TIME): Use AC_SEARCH_LIBS for clock_gettime instead of explicit glibc version check. * configure: Regenerate. Backport from mainline 2020-02-04 Jonathan Wakely PR libstdc++/93562 * include/bits/unique_ptr.h (__uniq_ptr_impl::swap): Define. (unique_ptr::swap, unique_ptr::swap): Call it. * testsuite/20_util/unique_ptr/modifiers/93562.cc: New test. Backport from mainline 2020-01-17 Jonathan Wakely PR libstdc++/92376 * include/bits/c++config: Only do PSTL config when the header is present, to fix freestanding. * libsupc++/new_opa.cc [!_GLIBCXX_HOSTED]: Declare allocation functions if they were detected by configure. Backport from mainline 2019-10-09 Jonathan Wakely PR libstdc++/78552 * src/c++98/locale_init.cc (locale::classic()): Do not construct a new locale object for every call. (locale::_S_initialize_once()): Construct C locale here. 2020-01-24 Jonathan Wakely Backport from mainline 2020-01-23 Jonathan Wakely PR libstdc++/91947 * include/Makefile.am (${host_builddir}/largefile-config.h): Simplify rule. * include/Makefile.in: Regenerate. Backport from mainline 2020-01-20 Jonathan Wakely * doc/xml/faq.xml: Fix grammar. * doc/xml/manual/appendix_contributing.xml: Improve instructions. * doc/xml/manual/spine.xml: Update copyright years. * doc/html/*: Regenerate. 2020-01-19 Eric S. Raymond Sandra Loosemore Partial backport from mainline: 2020-01-19 Eric S. Raymond * doc/xml/faq.xml: Update for SVN -> Git transition. * doc/xml/manual/appendix_contributing.xml: Likewise. 2020-01-13 Jonathan Wakely Backport from mainlne 2019-10-04 Jonathan Wakely PR libstdc++/81091 PR libstdc++/91947 * configure.ac: Use AC_SYS_LARGEFILE to enable 64-bit file APIs. * config.h.in: Regenerate: * configure: Regenerate: * include/Makefile.am (${host_builddir}/largefile-config.h): New target to generate config header for filesystem library. (${host_builddir}/c++config.h): Rename macros for large file support. * include/Makefile.in: Regenerate. * src/c++17/fs_dir.cc: Include new config header. * src/c++17/fs_ops.cc: Likewise. (filesystem::file_size): Use uintmax_t for size. * src/filesystem/dir.cc: Include new config header. * src/filesystem/ops.cc: Likewise. (experimental::filesystem::file_size): Use uintmax_t for size. * doc/xml/manual/status_cxx1998.xml: Replace incorrect statement about documenting mainline. * doc/xml/manual/status_cxx2011.xml: Likewise. * doc/xml/manual/status_cxx2014.xml: Likewise. * doc/xml/manual/status_cxx2017.xml: Likewise. * doc/xml/manual/status_cxx2020.xml: Likewise. * doc/xml/manual/status_cxxtr1.xml: Likewise. * doc/xml/manual/status_cxxtr24733.xml: Likewise. * doc/html/*: Regenerate. 2020-01-09 Jonathan Wakely PR libstdc++/93208 * config/abi/pre/gnu.ver: Add new exports. * include/std/memory_resource (memory_resource::~memory_resource()): Do not define inline. (monotonic_buffer_resource::~monotonic_buffer_resource()): Likewise. * src/c++17/memory_resource.cc (memory_resource::~memory_resource()): Define. (monotonic_buffer_resource::~monotonic_buffer_resource()): Define. * testsuite/20_util/monotonic_buffer_resource/93208.cc: New test. 2020-01-08 Jonathan Wakely PR libstdc++/93201 * src/c++17/fs_ops.cc (remove_all(const path&, error_code&)): Check result of recursive call before incrementing iterator. * src/filesystem/ops.cc (remove_all(const path&, error_code&)): Likewise. * testsuite/27_io/filesystem/operations/remove_all.cc: Check errors are reported correctly. * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise. 2019-12-11 Jonathan Wakely Backport from mainline 2019-11-25 Jonathan Wakely PR libstdc++/91786 * include/bits/fs_path.h (filesystem_error): Move definition before the use in u8path. 2019-12-10 Thomas Rodgers Backport from mainline 2019-12-10 Thomas Rodgers * include/pstl/glue_numeric_defs.h: Restore enable_if lost during original import of pstl. * include/pstl/glue_numeric_impl.h: Likewise. 2019-12-09 Jonathan Wakely Backport from mainline 2019-12-09 Jonathan Wakely PR libstdc++/92853 * src/c++17/fs_path.cc (filesystem::path::operator+=(const path&)): Do not process a trailing directory separator twice. * testsuite/27_io/filesystem/path/concat/92853.cc: New test. * testsuite/27_io/filesystem/path/concat/path.cc: Test more cases. * testsuite/27_io/filesystem/path/concat/strings.cc: Test more cases. 2019-11-22 Jonathan Wakely Backport from mainline 2019-10-29 Jonathan Wakely PR libstdc++/92267 * include/bits/stl_deque.h (_Deque_iterator(const _Deque_iterator&)): Do not define as defaulted. * testsuite/23_containers/deque/types/92267.cc: New test. 2019-10-28 John David Anglin * config/abi/post/hppa-linux-gnu/baseline_symbols.txt: Update. 2019-10-24 Jonathan Wakely Backport from mainline 2019-05-31 Jonathan Wakely PR libstdc++/90682 * libsupc++/eh_term_handler.cc: Include eh_term_handler.h to get definition of _GLIBCXX_DEFAULT_TERM_HANDLER. * libsupc++/eh_term_handler.h: New header defining _GLIBCXX_DEFAULT_TERM_HANDLER. * libsupc++/eh_terminate.cc: Include eh_term_handler.h. (set_terminate): Restore default handler when argument is null. (set_unexpected): Likewise. * testsuite/18_support/set_terminate.cc: New test. * testsuite/18_support/set_unexpected.cc: New test. Backport from mainline 2019-05-01 Jonathan Wakely PR libstdc++/61761 * include/std/complex (__complex_proj): Return parameter unchanged. [_GLIBCXX_USE_C99_COMPLEX] (__complex_proj): Change overloads for floating-point types to take std::complex arguments. [_GLIBCXX_USE_C99_MATH_TR1] (__complex_proj): Add overloads for floating-point types. * testsuite/26_numerics/complex/proj.cc: New test. Backport from mainline 2019-06-06 Jonathan Wakely * testsuite/23_containers/deque/requirements/dr438/assign_neg.cc: Add dg-prune-output for different C++98 diagnostic. * testsuite/23_containers/deque/requirements/dr438/constructor_1_neg.cc: Likewise. * testsuite/23_containers/deque/requirements/dr438/constructor_2_neg.cc: Likewise. * testsuite/23_containers/deque/requirements/dr438/insert_neg.cc: Likewise. * testsuite/23_containers/list/requirements/dr438/assign_neg.cc: Likewise. * testsuite/23_containers/list/requirements/dr438/constructor_1_neg.cc: Likewise. * testsuite/23_containers/list/requirements/dr438/constructor_2_neg.cc: Likewise. * testsuite/23_containers/list/requirements/dr438/insert_neg.cc: Likewise. * testsuite/23_containers/vector/requirements/dr438/assign_neg.cc: Likewise. * testsuite/23_containers/vector/requirements/dr438/ constructor_1_neg.cc: Likewise. * testsuite/23_containers/vector/requirements/dr438/ constructor_2_neg.cc: Likewise. * testsuite/23_containers/vector/requirements/dr438/insert_neg.cc: Likewise. * testsuite/libstdc++-prettyprinters/compat.cc: Do not run for C++98. Backport from mainline 2019-06-06 Jonathan Wakely * testsuite/20_util/is_nothrow_invocable/value.cc: Test converting to void. * testsuite/experimental/names.cc: Do not run for C++98 mode. Do not include Library Fundamentals or Networking headers in C++11 mode. * testsuite/ext/char8_t/atomic-1.cc: Do not run for C++98 mode. Backport from mainline 2019-05-14 Jonathan Wakely * testsuite/util/testsuite_allocator.h (memory_resource) (default_resource_mgr): Fix indentation. Backport from mainline 2019-08-30 Jonathan Wakely PR libstdc++/89164 * include/bits/stl_algobase.h (__copy_move): Give descriptive names to template parameters. * include/bits/stl_uninitialized.h (uninitialized_copy) (uninitialized_fill, uninitialized_fill_n): Add static assertions to diagnose invalid uses. * testsuite/20_util/specialized_algorithms/uninitialized_copy/1.cc: Adjust expected error. * testsuite/20_util/specialized_algorithms/uninitialized_copy/89164.cc: New test. * testsuite/20_util/specialized_algorithms/uninitialized_copy_n/ 89164.cc: New test. * testsuite/20_util/specialized_algorithms/uninitialized_fill/89164.cc: New test. * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/ 89164.cc: New test. * testsuite/23_containers/vector/cons/89164.cc: New test. * testsuite/23_containers/vector/cons/89164_c++17.cc: New test. Backport from mainline 2019-10-22 Jonathan Wakely * include/bits/memoryfwd.h (uses_allocator): Do not declare for C++98. * testsuite/17_intro/names.cc: Check uses_allocator in C++98. Backport from mainline 2019-10-18 Jonathan Wakely PR libstdc++/92143 * libsupc++/new_opa.cc (operator new) [__APPLE__]: Increase alignment to at least sizeof(void*). Backport from mainline 2019-06-06 Jonathan Wakely * testsuite/23_containers/unordered_map/requirements/debug_container.cc: Do not test allocator rebinding extension for C++2a. * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Change dg-do directive for C++17 and C++2a. Backport from mainline 2019-05-23 Jonathan Wakely * testsuite/20_util/function_objects/invoke/1.cc: Add more tests. Move C++17-specific tests to ... * testsuite/20_util/function_objects/invoke/3.cc: New test. * testsuite/23_containers/unordered_set/allocator/ext_ptr.cc: Change "compile" test to "run". Backport from mainline 2019-10-08 Jonathan Wakely * doc/Makefile.am (doc-html-docbook-regenerate): New target. (${docbook_outdir}/html): Do not create unused 'html/ext' directory. * doc/Makefile.in: Regenerate. * doc/xml/manual/documentation_hacking.xml: Document new target. * doc/html/*: Regenerate. * doc/xml/manual/allocator.xml: Use archived copy of CUJ article. Backport from mainline 2019-05-31 Gerald Pfeifer * doc/xml/manual/allocator.xml: Move hoard.org back to http. Backport from mainline 2019-08-15 Jonathan Wakely PR libstdc++/91456 * include/bits/std_function.h (__check_func_return_type): Remove. (function::_Callable): Use std::__is_invocable_impl instead of __check_func_return_type. * include/std/type_traits (__is_invocable_impl): Add another defaulted template parameter. Define a separate partial specialization for INVOKE and INVOKE. For INVOKE replace is_convertible check with a check that models delayed temporary materialization. * testsuite/20_util/function/91456.cc: New test. * testsuite/20_util/is_invocable/91456.cc: New test. Backport from mainline 2019-09-30 Andreas Tobler * include/experimental/internet: Include netinet/in.h if we have _GLIBCXX_HAVE_NETINET_IN_H defined. Backport from mainline 2019-09-26 Jonathan Wakely * include/experimental/internet (operator==, operator<): Fix loop condition to avoid reading past the end of the array. Backport from mainline 2019-08-06 Jonathan Wakely P1651R0 bind_front should not unwrap reference_wrapper * include/std/functional (bind_front): Don't unwrap reference_wrapper. * include/std/version (__cpp_lib_bind_front): Update value. * testsuite/20_util/function_objects/bind_front/1.cc: Fix test for feature test macro. * testsuite/20_util/function_objects/bind_front/2.cc: New test. Backport from mainline 2019-10-11 Jonathan Wakely PR libstdc++/92059 * include/tr2/dynamic_bitset (__dynamic_bitset_base): Define all special member functions as defaulted. Add noexcept to most members. (__dynamic_bitset_base(size_t, unsigned long long, const _Alloc&)): Mask off unwanted bits in the __val parameter. Avoid undefined left shifts. (__dynamic_bitset_base::_M_assign): Remove. (__dynamic_bitset_base::_M_do_reset): Use std::fill. (__dynamic_bitset_base::_M_are_all_aux): Avoid integer promotion when block_type has lower rank than int. (dynamic_bitset): Add noexcept to most members. Use injected-class-name in return types and parameter types. (dynamic_bitset::_M_Nb): Add default member initializer. (dynamic_bitset(), dynamic_bitset(const dynamic_bitset&)): Define as defaulted. (dynamic_bitset(dynamic_bitset&&)): Clear source object after move. (dynamic_bitset::operator=(const dynamic_bitset&)): Define as defaulted. (dynamic_bitset::operator=(dynamic_bitset&&)): Add noexcept-specifier. Define without using swap, to propagate allocator correctly. (dynamic_bitset(const char*, const _Alloc&)): Use strlen. (dynamic_bitset::_M_do_sanitize, dynamic_bitset::_M_do_fill): Use casts to avoid unwanted integer promotions. (dynamic_bitset::_M_copy_from_ptr): Rearrange template parameters and add default template arguments and default argument to simplify usage. (dynamic_bitset::_M_copy_from_string): Adjust call to _M_copy_from_ptr. (operator==(const dynamic_bitset&, const dynamic_bitset&)) (operator<(const dynamic_bitset&, const dynamic_bitset&)): Use _M_Nb. * include/tr2/dynamic_bitset.tcc (dynamic_bitset::_M_copy_from_ptr): Adjust template parameters to match declaration. * testsuite/tr2/dynamic_bitset/cmp.cc: New test. * testsuite/tr2/dynamic_bitset/cons.cc: New test. * testsuite/tr2/dynamic_bitset/copy.cc: New test. * testsuite/tr2/dynamic_bitset/move.cc: New test. * testsuite/tr2/dynamic_bitset/pr92059.cc: New test. 2019-09-12 Jonathan Wakely PR libstdc++/91748 * include/bits/stl_algo.h (for_each_n): Fix random access iterator case. * testsuite/25_algorithms/for_each/for_each_n.cc: Test with random access iterators. 2019-09-11 Jonathan Wakely * python/libstdcxx/v6/xmethods.py (SharedPtrUseCountWorker.__call__): Fix syntax error. 2019-09-09 Edward Smith-Rowland <3dw4rd@verizon.net> Update docs for p858 - Constexpr iterator changes available since 9.1. * doc/xml/manual/status_cxx2020.xml: Update p0858r0 status. 2019-09-02 Jonathan Wakely * doc/xml/manual/abi.xml: Document 9.x library versions. * doc/html/*: Regenerate. 2019-09-02 Rainer Orth * config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate. * config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise. * config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise. * config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt: Likewise. 2019-08-29 Jonathan Wakely PR libstdc++/91067 * acinclude.m4 (libtool_VERSION): Bump to 6:28:0. * configure: Regenerate. * config/abi/pre/gnu.ver (GLIBCXX_3.4.28): Add new version. Export missing symbols. * testsuite/27_io/filesystem/iterators/91067.cc: Test move constructors. * testsuite/util/testsuite_abi.cc: Add new symbol version. 2019-08-29 Jakub Jelinek * config/abi/post/i386-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/i486-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/x86_64-linux-gnu/32/baseline_symbols.txt: Update. * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Update. 2019-08-23 Joseph Myers * src/filesystem/ops-common.h [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (std::filesystem::__gnu_posix::lstat): Add return type. 2019-08-20 Jonathan Wakely * include/std/numeric (reduce): Fix Doxygen markup. Backport from mainline 2019-06-19 Jonathan Wakely * include/std/numeric (reduce(Iter, Iter, T, BinOp)): Fix value category used in invocable check. (reduce(Iter, Iter, T)): Pass initial value as rvalue. * testsuite/26_numerics/reduce/2.cc: New test. Backport from mainline 2019-06-18 Jonathan Wakely * include/bits/algorithmfwd.h: Change title of doc group. * include/bits/stl_algo.h (for_each_n): Add new C++17 algorithm from P0024R2. * include/bits/stl_numeric.h: Define doc group and add algos to it. * include/std/numeric (__is_random_access_iter): New internal trait. (reduce, transform_reduce, exclusive_scan, inclusive_scan) (transform_exclusive_scan, transform_inclusive_scan): Likewise. * testsuite/25_algorithms/for_each/for_each_n.cc: New test. * testsuite/26_numerics/exclusive_scan/1.cc: New test. * testsuite/26_numerics/inclusive_scan/1.cc: New test. * testsuite/26_numerics/reduce/1.cc: New test. * testsuite/26_numerics/transform_exclusive_scan/1.cc: New test. * testsuite/26_numerics/transform_inclusive_scan/1.cc: New test. * testsuite/26_numerics/transform_reduce/1.cc: New test. * testsuite/util/testsuite_iterators.h (test_container::size()): New member function. 2019-08-20 Uros Bizjak * config/abi/post/alpha-linux-gnu/baseline_symbols.txt: Update. 2019-08-13 Jonathan Wakely Backport from mainline 2019-08-12 Jonathan Wakely PR libstdc++/90361 * src/c++17/string-inst.cc: Use _GLIBCXX_USE_CXX11_ABI=1 by default. 2019-08-12 Release Manager * GCC 9.2.0 released. 2019-07-31 Jonathan Wakely * testsuite/26_numerics/midpoint/floating.cc: Use standard macros instead of GCC-specific ones. Backport from mainline 2019-06-24 Jonathan Wakely * testsuite/18_support/headers/cfloat/values_c++17.cc: New test. 2019-07-31 Jonathan Wakely Backport from mainline 2019-07-31 Jonathan Wakely * include/std/memory (make_obj_using_allocator): Qualify call to uses_allocator_construction_args. 2019-07-31 Jonathan Wakely Backport from mainline 2019-07-31 Jonathan Wakely PR libstdc++/91308 * include/bits/unique_ptr.h (unique_ptr::__safe_conversion_up): Remove constraints on deleter that should only apply to the constructor. (unique_ptr::__safe_conversion_up): Likewise. (unique_ptr::unique_ptr(unique_ptr&&)): Restore constraints on deleter here. * testsuite/20_util/unique_ptr/assign/91308.cc: New test. 2019-07-31 Jonathan Wakely Backport from mainline 2019-07-29 Jonathan Wakely PR libstdc++/51333 * libsupc++/cxxabi.h (__gnu_cxx::recursive_init_error): Do not define constructor inline. * libsupc++/guard_error.cc (__gnu_cxx::recursive_init_error): Define constructor. * testsuite/18_support/51333.cc: New test. 2019-07-26 Jonathan Wakely Backport from mainline 2019-07-26 Jonathan Wakely * include/std/bit (__cpp_lib_endian): Define. * include/std/version (__cpp_lib_endian): Define. * testsuite/26_numerics/endian/2.cc: New. * testsuite/26_numerics/endian/3.cc: New. * testsuite/26_numerics/endian/4.cc: New. 2019-07-26 Jonathan Wakely Backport from mainline 2019-07-25 Jonathan Wakely * include/std/bit (endian): Move definition here as per P1612R1. * include/std/type_traits (endian): Remove definition from here. * testsuite/20_util/endian/1.cc: Rename to ... * testsuite/26_numerics/endian/1.cc: ... here. Adjust header. 2019-07-26 Jonathan Wakely Backport from mainline 2019-07-22 Jonathan Wakely * include/std/bit (__rotl, __rotr): Change second parameter from unsigned int to int and handle negative values. (rotl, rotr): Remove check for __STRICT_ANSI__. Change second parameter from unsigned int to int. Add nodiscard attribute. * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Rename to ... * testsuite/26_numerics/bit/bit.rotate/rotl.cc: Here. Test negative shifts. * testsuite/26_numerics/bit/bitops.rot/rotr.cc: Rename to ... * testsuite/26_numerics/bit/bit.rotate/rotr.cc: Here. Test negative shifts. 2019-07-26 Jonathan Wakely Backport from mainline 2019-07-22 Jonathan Wakely * include/std/bit (__ceil2): Make unrepresentable results undefined, as per P1355R2. Add debug assertion. Perform one left shift, not two, so that out of range values cause undefined behaviour. Ensure that shift will still be undefined if left operand is promoted. * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Replace checks for unrepresentable values with checks that they are not core constant expressions. * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: New test. 2019-07-26 Jonathan Wakely Backport from mainline (partial) 2019-06-26 Jonathan Wakely * include/std/bit (rotl(byte, unsigned), rotr(byte, unsigned)) (countl_zero(byte), countl_one(byte), countr_zero(byte)) (countr_one(byte), popcount(byte), ispow2(byte), ceil2(byte)) (floor2(byte), log2p1(byte)): Remove. * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Remove test for std::byte overload. * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Likewise. * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Likewise. * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Likewise. * testsuite/26_numerics/bit/bitops.count/countl_one.cc: Likewise. * testsuite/26_numerics/bit/bitops.count/countl_zero.cc: Likewise. * testsuite/26_numerics/bit/bitops.count/countr_one.cc: Likewise. * testsuite/26_numerics/bit/bitops.count/countr_zero.cc: Likewise. * testsuite/26_numerics/bit/bitops.count/popcount.cc: Likewise. * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Likewise. * testsuite/26_numerics/bit/bitops.rot/rotr.cc: Likewise. 2019-07-26 Jonathan Wakely Backport from mainline 2019-07-16 Jason Merrill * include/std/memory (uses_allocator_construction_args): Add parens around constraint. 2019-07-26 Jonathan Wakely Backport from mainline 2019-07-02 Jonathan Wakely * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_LAUNDER) (_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED): Use __has_builtin instead of __is_identifier to detect Clang support. 2019-07-26 Jonathan Wakely Backport from mainline 2019-05-23 Jonathan Wakely * doc/xml/manual/status_cxx2017.xml: Add feature test macro for P0040R3. * doc/html/*: Regenerate. 2019-07-26 Jonathan Wakely Backport from mainline 2019-06-20 Jonathan Wakely * doc/xml/manual/status_cxx2017.xml: Fix outdated reference to C++17 working draft. 2019-07-26 Jonathan Wakely Backport from mainline 2019-06-25 Jonathan Wakely * include/std/numeric (midpoint(T, T)): Avoid std::abs in constexpr function. Backport from mainline 2019-06-24 Jonathan Wakely * include/std/numeric (midpoint(T, T)): Change implementation for floating-point types to avoid incorrect rounding of denormals. * testsuite/26_numerics/midpoint/floating.cc: Add check for correct rounding with denormals. * testsuite/26_numerics/gcd/gcd_neg.cc: Adjust dg-error line numbers. * testsuite/26_numerics/lcm/lcm_neg.cc: Likewise. 2019-07-03 Jonathan Wakely PR libstdc++/91067 * acinclude.m4 (libtool_VERSION): Bump to 6:27:0. * configure: Regenerate. * config/abi/pre/gnu.ver (GLIBCXX_3.4.27): Add new version. Export missing symbols. * testsuite/27_io/filesystem/iterators/91067.cc: New test. * testsuite/util/testsuite_abi.cc: Add new symbol version. Backport from mainline 2019-07-02 Jonathan Wakely * include/bits/c++config (_GLIBCXX_HAVE_BUILTIN_LAUNDER) (_GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED): Use __has_builtin instead of __is_identifier to detect Clang support. 2019-06-27 Jonathan Wakely PR libstdc++/85494 use rand_s in std::random_device * config/os/mingw32-w64/os_defines.h (_GLIBCXX_USE_CRT_RAND_S): Define. * src/c++11/cow-string-inst.cc (random_device::_M_init_pretr1) [_GLIBCXX_USE_CRT_RAND_S]: Do nothing if rand_s will be used. * src/c++11/random.cc [_GLIBCXX_USE_CRT_RAND_S] (__winxp_rand_s): Define new function. (random_device::_M_init_pretr1) [_GLIBCXX_USE_CRT_RAND_S]: Do nothing if rand_s will be used. (random_device::_M_getval_pretr1) [_GLIBCXX_USE_CRT_RAND_S]: Use __winxp_rand_s(). * testsuite/26_numerics/random/random_device/85494.cc: New test. PR libstdc++/91012 * src/c++17/fs_path.cc (filesystem_error::_Impl): Use a string_view for the what_arg parameters. (filesystem_error::filesystem_error): Pass system_error::what() to the _Impl constructor. * testsuite/27_io/filesystem/filesystem_error/cons.cc: Ensure that filesystem_error::what() contains system_error::what(). 2019-06-21 Jonathan Wakely Backport from mainline 2019-06-19 Jonathan Wakely PR libstdc++/90920 partially revert r263433 * include/bits/stl_algo.h (__rotate): Restore checks for empty ranges. (rotate): Remove checks. * testsuite/25_algorithms/rotate/90920.cc: New test. 2019-06-17 Jonathan Wakely PR libstdc++/90281 Fix string conversions for filesystem::path * include/bits/fs_path.h (u8path) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use codecvt_utf8_utf16 instead of codecvt_utf8. Use __str_codecvt_in_all to fail for partial conversions and throw on error. [!_GLIBCXX_FILESYSTEM_IS_WINDOWS && _GLIBCXX_USE_CHAR8_T] (path::_Cvt): Add explicit specialization. [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_wconvert): Remove overloads. [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_convert): Use if-constexpr instead of dispatching to _S_wconvert. Use codecvt instead of codecvt_utf8. Use __str_codecvt_in_all and __str_codecvt_out_all. [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_convert): Use codecvt instead of codecvt_utf8. Use __str_codecvt_out_all. (path::_S_str_convert) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use codecvt_utf8_utf16 instead of codecvt_utf8. Construct return values with allocator. Use __str_codecvt_out_all. Fallthrough to POSIX code after converting to UTF-8. (path::_S_str_convert): Use codecvt instead of codecvt_utf8. Use __str_codecvt_in_all. (path::string): Fix initialization of string types with different allocators. (path::u8string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use codecvt_utf8_utf16 instead of codecvt_utf8. Use __str_codecvt_out_all. * include/bits/locale_conv.h (__do_str_codecvt): Reorder static and runtime conditions. (__str_codecvt_out_all, __str_codecvt_in_all): New functions that return false for partial conversions. * include/experimental/bits/fs_path.h (u8path): [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Implement correctly for mingw. [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_wconvert): Add missing handling for char8_t. Use codecvt and codecvt_utf8_utf16 instead of codecvt_utf8. Use __str_codecvt_in_all and __str_codecvt_out_all. [!_GLIBCXX_FILESYSTEM_IS_WINDOWS] (path::_Cvt::_S_convert): Use codecvt instead of codecvt_utf8. Use __str_codecvt_out_all. (path::string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use codecvt_utf8_utf16 instead of codecvt_utf8. Construct return values with allocator. Use __str_codecvt_out_all and __str_codecvt_in_all. (path::string) [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use __str_codecvt_in_all. (path::u8string) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use codecvt_utf8_utf16 instead of codecvt_utf8. Use __str_codecvt_out_all. * src/c++17/fs_path.cc (path::_S_convert_loc): Use __str_codecvt_in_all. * src/filesystem/path.cc (path::_S_convert_loc): Likewise. * testsuite/27_io/filesystem/path/construct/90281.cc: New test. * testsuite/27_io/filesystem/path/factory/u8path.cc: New test. * testsuite/27_io/filesystem/path/native/string.cc: Test with empty strings and with Unicode characters outside the basic multilingual plane. * testsuite/27_io/filesystem/path/native/alloc.cc: New test. * testsuite/experimental/filesystem/path/construct/90281.cc: New test. * testsuite/experimental/filesystem/path/factory/u8path.cc: New test. * testsuite/experimental/filesystem/path/native/alloc.cc: New test. * testsuite/experimental/filesystem/path/native/string.cc: Test with empty strings and with Unicode characters outside the basic multilingual plane. 2019-06-14 Jonathan Wakely Backport from mainline 2019-04-26 Jonathan Wakely * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace wildcard that matches wstring::_M_replace_dispatch with more specific patterns. * include/bits/fs_path.h (path::_S_convert_loc<_InputIterator>): Create const std::string to avoid redundant call to _S_convert_loc with non-const pointers. * include/bits/locale_conv.h (__do_str_codecvt): Use if-constexpr to avoid unnecessary basic_string::assign instantiations. 2019-06-14 Jonathan Wakely Backport from mainline 2019-04-26 Jonathan Wakely * include/experimental/bits/fs_path.h (path::_S_convert_loc<_InputIterator>): Create const std::string to avoid redundant call to _S_convert_loc with non-const pointers. 2019-06-14 Jonathan Wakely Backport from mainline 2019-05-29 Jonathan Wakely PR libstdc++/88881 * src/c++17/fs_ops.cc [_GLIBCXX_FILESYSTEM_IS_WINDOWS] (status(const path&, error_code&)): Use parent_path() to remove trailing slash. (symlink_status(const path&, error_code&)): Duplicate workaround for bug in _wstat for paths with trailing slash. * testsuite/27_io/filesystem/operations/remove_all.cc: Check path with trailing slash. * testsuite/27_io/filesystem/operations/status.cc: Likewise. * testsuite/27_io/filesystem/operations/symlink_status.cc: Likewise. 2019-06-14 Jonathan Wakely Backport from mainline 2019-05-29 Jonathan Wakely * src/c++17/fs_path.cc (path::parent_path()): Create whole path at once instead of building it iteratively. 2019-06-14 Jonathan Wakely Backport from mainline 2019-05-07 Jonathan Wakely * doc/xml/manual/intro.xml: Fix DR 2537 and DR 2566 confusion. 2019-06-14 Jonathan Wakely Backport from mainline 2019-06-14 Jonathan Wakely * include/std/version (__cpp_lib_bind_front): Add missing macro. 2019-06-14 Jonathan Wakely Backport from mainline 2019-06-12 Jonathan Wakely * include/std/algorithm (__cpp_lib_parallel_algorithm): Fix value. * include/std/memory (__cpp_lib_parallel_algorithm): Likewise. * include/std/numeric (__cpp_lib_parallel_algorithm): Likewise. * testsuite/25_algorithms/pstl/feature_test.cc: New test. 2019-06-14 Jonathan Wakely Backport from mainline 2019-06-07 Jonathan Wakely PR libstdc++/90770 * src/Makefile.am (stamp-debug): Also test for missing makefile. * src/Makefile.in: Regenerate. 2019-06-14 Jonathan Wakely Backport from mainline 2019-05-21 Jonathan Wakely PR libstdc++/90252 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend): Use "additional_flags" to pass -ltbb to v3_target_compile command. Use check_v3_target_prop_cached to cache the result of the test. Backport from mainline 2019-05-20 Thomas Rodgers PR libstdc++/90252 * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend): Changed v3_target_compile check from preprocess to executable. Added "-ltbb" to v3_target_compile flags. Backport from mainline 2019-05-20 Thomas Rodgers * testsuite/lib/libstdc++.exp (check_effective_target_tbb-backend): Add check for Thread Building Blocks 2018 or later. 2019-06-14 Jonathan Wakely Backport from mainline 2019-05-21 Jonathan Wakely * doc/xml/manual/shared_ptr.xml: Fix names of lock policy constants. 2019-06-11 Edward Smith-Rowland <3dw4rd@verizon.net> Fix ConstexprIterator requirements tests - No constexpr algorithms! * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc: Replace copy with hand-rolled loop. * testsuite/23_containers/array/requirements/constexpr_iter.cc: Ditto. 2019-06-09 Edward Smith-Rowland <3dw4rd@verizon.net> Test for C++20 p0858 - ConstexprIterator requirements. * testsuite/21_strings/basic_string_view/requirements/constexpr_iter.cc: New test. * testsuite/23_containers/array/requirements/constexpr_iter.cc: New test. 2019-06-05 Jakub Jelinek Backported from mainline 2019-05-29 Jakub Jelinek PR c++/90598 2019-05-02 Jonathan Wakely * testsuite/experimental/propagate_const/requirements2.cc: Adjust dg-error. 2019-06-03 Jonathan Wakely PR libstdc++/90700 * include/std/tuple (tuple(allocator_arg_t, const A&, const tuple&)): Fix value category of template argument to _TC::_NonNestedTuple. * testsuite/20_util/tuple/cons/90700.cc: New test. PR libstdc++/90686 * doc/xml/manual/status_cxx2014.xml: Document what's missing from . * doc/xml/manual/status_cxx2020.xml: Document status of P0777R1, P0339R6, P0340R3, P1164R1 and P1357R1. * doc/html/*: Regenerate. * include/std/tuple (make_from_tuple): Use remove_reference_t instead of decay_t (P0777R1). 2019-05-30 Jonathan Wakely * doc/xml/manual/status_cxx2017.xml: Fix typo in documentation of implementation-defined support for [fs.conform.9945]. * doc/xml/manual/status_cxx2020.xml: Add feature-test macro for P0811R3. Change status of P1353R0. * doc/html/*: Regenerate. 2019-05-28 Jonathan Wakely Backport from mainline 2019-05-28 Jonathan Wakely PR libstdc++/90634 * include/experimental/bits/fs_path.h (path::path(path&&)): Only call _M_split_cmpts() for a path with multiple components. (path::_S_is_dir_sep()): Add missing 'static' keyword to function. * src/filesystem/path.cc (path::_M_split_cmpts()): Count number of components and reserve space in vector. Return early when there is only one component. * testsuite/27_io/filesystem/path/construct/90634.cc: New test. * testsuite/experimental/filesystem/path/construct/90634.cc: New test. Backport from mainline 2019-05-28 Jonathan Wakely * testsuite/util/testsuite_fs.h (compare_paths): Use three-argument form of std::equals for C++11 compatibility. 2019-05-24 Jonathan Wakely Backport from mainline 2019-05-24 Jonathan Wakely * include/std/numeric (midpoint(T*, T*)): Fix incorrect result. * testsuite/26_numerics/midpoint/pointer.cc: Change "compile" test to "run". Backport from mainline 2019-05-17 Jonathan Wakely * include/bits/random.h (seed_seq::param): Fix non-reserved name. * include/experimental/type_traits (is_detected_exact) (is_detected_exact_v): Likewise. * include/pstl/execution_defs.h (is_execution_policy) (is_execution_policy_v, __enable_if_execution_policy): Likewise. * include/pstl/execution_impl.h (__policy_traits): Likewise. * testsuite/17_intro/names.cc: Check for more non-reserved names. * testsuite/experimental/names.cc: New test. Backport from mainline 2019-05-17 Jonathan Wakely PR libstdc++/85965 * include/bits/hashtable.h (_Hashtable::~_Hashtable()): Remove static assertions from the destructor. * include/bits/hashtable_policy.h (_Hash_code_base::_M_hash_code): Move static_assert for hash function to here. (_Hash_table_base::_M_equals): Move static_assert for equality predicate to here. * include/bits/stl_tree.h (_Rb_tree::_S_key(_Const_Link_type)): Move assertions here. Access the value directly instead of calling _S_value. (_Rb_tree::_S_key(_Const_Base_ptr)): Do downcast and forward to _S_key(_Const_Link_type). * testsuite/23_containers/set/85965.cc: Check construction, destruction, assignment and size() do not trigger the assertions. * testsuite/23_containers/unordered_set/85965.cc: Likewise. * testsuite/23_containers/map/48101_neg.cc: Call find and adjust expected errors. * testsuite/23_containers/multimap/48101_neg.cc: Likewise. * testsuite/23_containers/multiset/48101_neg.cc: Likewise. * testsuite/23_containers/set/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise. 2019-05-23 Jonathan Wakely Backport from mainline 2019-05-23 Jonathan Wakely * include/experimental/any (__any_caster): Use RTTI if comparing addresses fails, to support non-unique addresses in shared libraries. * include/std/any (__any_caster): Likewise. * testsuite/experimental/any/misc/any_cast_neg.cc: Use 0 for dg-error line number. Backport from mainline 2019-05-23 Jonathan Wakely PR libstdc++/90220 * include/experimental/any (__any_caster): Constrain to only be callable for object types. Use remove_cv_t instead of decay_t. If the type decays or isn't copy constructible, compare the manager function to a dummy specialization. (__any_caster): Add overload constrained for non-object types. (any::_Manager_internal<_Op>): Add dummy specialization. * testsuite/experimental/any/misc/any_cast.cc: Test function types and array types. 2019-05-22 Jonathan Wakely Backport from mainline 2019-05-22 Jonathan Wakely PR libstdc++/90557 * src/c++17/fs_path.cc (path::_List::operator=(const _List&)): Fix reversed arguments to uninitialized_copy_n. * testsuite/27_io/filesystem/path/assign/copy.cc: Check that source is unchanged by copy assignment. * testsuite/util/testsuite_fs.h (compare_paths): Use std::equal to compare path components. 2019-05-20 Jonathan Wakely Backported from mainline 2019-05-20 Jonathan Wakely PR c++/90532 Ensure __is_constructible(T[]) is false * include/std/type_traits (__do_is_default_constructible_impl) (__is_default_constructible_atom, __is_default_constructible_safe): Remove. (is_default_constructible): Use is_constructible. * testsuite/20_util/is_constructible/value.cc: Check int[] case. * testsuite/20_util/is_default_constructible/value.cc: Likewise. * testsuite/20_util/is_trivially_constructible/value.cc: Likewise. * testsuite/20_util/is_trivially_default_constructible/value.cc: Likewise. 2019-05-16 Jonathan Wakely Backport from mainline 2019-05-16 Jonathan Wakely * src/c++17/fs_ops.cc (absolute(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Remove bogus assertion. Backport from mainline 2019-05-04 Jonathan Wakely PR libstdc++/90299 * src/c++17/fs_ops.cc (absolute(const path&)): Report an error if the argument is an empty path. (absolute(const path&, error_code&)): Use invalid_argument as error code instead of no_such_file_or_directory. * testsuite/27_io/filesystem/operations/absolute.cc: Check handling of non-existent paths and empty paths with both overloads of absolute. 2019-05-15 Jonathan Wakely Backport from mainline 2019-04-30 Jonathan Wakely * testsuite/27_io/filesystem/path/decompose/root_path.cc: Remove macros accidentally left in. * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Remove unnecessary -lstdc++fs option. Fix test for mingw. * testsuite/experimental/filesystem/path/native/string-char8_t.cc: Fix test for mingw. Backport from mainline 2019-05-13 Jonathan Wakely PR libstdc++/90454.cc path construction from void* * include/bits/fs_path.h (path::_Path): Use remove_pointer so that pointers to void are rejected as well as void. * include/experimental/bits/fs_path.h (path::_Path): Likewise. * testsuite/27_io/filesystem/path/construct/80762.cc: Also check pointers to void. * testsuite/experimental/filesystem/path/construct/80762.cc: Likewise. 2019-05-13 Edward Smith-Rowland <3dw4rd@verizon.net> * doc/xml/manual/status_cxx2020.xml: Document P0811R3 status. 2019-05-11 Jonathan Wakely Backport from mainline 2019-05-10 Jonathan Wakely PR libstdc++/81266 * testsuite/util/thread/all.h: Do not use remove_pointer for std::thread::native_handle_type. 2019-05-10 Jonathan Wakely PR libstdc++/90397 * include/std/variant (variant): Add noexcept to friend declaration. Backport from mainline 2019-04-26 Jonathan Wakely * include/std/memory (__uses_alloc_args): Add string-literal to static_assert, to match the one in __uses_alloc. [__cpp_concepts] (_Std_pair): Use C++2a syntax for concept. * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: Check for recursive uses-allocator construction of nested pairs. * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc:: Add comment. Backport from mainline 2019-04-25 Jonathan Wakely PR libstdc++/90239 * doc/xml/manual/status_cxx2020.xml: Amend P0591R4 status. * include/std/scoped_allocator [__cplusplus > 201703L] (scoped_allocator_adaptor::construct): Define in terms of uses_allocator_construction_args, as per P0591R4. * testsuite/20_util/scoped_allocator/construct_pair_c++2a.cc: New test. * testsuite/util/testsuite_allocator.h: Remove name of unused parameter. * doc/html/*: Regenerate. 2019-05-03 Release Manager * GCC 9.1.0 released. 2019-05-01 Rainer Orth * config/abi/post/i386-solaris2.10/baseline_symbols.txt: Regenerate. * config/abi/post/i386-solaris2.10/amd64/baseline_symbols.txt: Likewise. * config/abi/post/i386-solaris2.11/baseline_symbols.txt: Likewise. * config/abi/post/i386-solaris2.11/amd64/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.10/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.10/sparcv9/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.11/baseline_symbols.txt: Likewise. * config/abi/post/sparc-solaris2.11/sparcv9/baseline_symbols.txt: Likewise. 2019-04-30 Jakub Jelinek * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Change _Lock_policyE2 exports to _Lock_policyE[012]. * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: Update. 2019-04-26 H.J. Lu Backport from mainline 2019-04-26 H.J. Lu * config/abi/post/x86_64-linux-gnu/x32/baseline_symbols.txt: Updated. 2019-04-26 Jonathan Wakely Backport from mainline 2019-04-26 Jonathan Wakely * testsuite/20_util/variant/run.cc: Use a new Hashable type to test hashing, because pmr::string depends on _GLIBCXX_USE_CXX11_ABI==1. * testsuite/21_strings/basic_string/hash/hash.cc [!_GLIBCXX_USE_CXX11_ABI]: Don't test pmr strings. * testsuite/21_strings/basic_string/hash/hash_char8_t.cc [!_GLIBCXX_USE_CXX11_ABI]: Likewise. 2019-04-26 Jonathan Wakely * config/abi/pre/gnu.ver (GLIBCXX_3.4): Replace wildcard that matches wstring::_M_replace_dispatch with more specific patterns. 2019-04-26 Jakub Jelinek * config/abi/post/s390x-linux-gnu/32/baseline_symbols.txt: Update. * config/abi/post/s390-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc-linux-gnu/baseline_symbols.txt: Update. * config/abi/post/powerpc64-linux-gnu/32/baseline_symbols.txt: Update. * 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/i386-linux-gnu/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/powerpc64-linux-gnu/baseline_symbols.txt: Update. 2019-04-25 Jonathan Wakely PR libstdc++/90239 * doc/xml/manual/status_cxx2020.xml: Correct status of P0591R4. * doc/html/*: Regenerate. 2019-04-24 Jonathan Wakely * doc/xml/manual/status_cxx2017.xml: Document P0024R2 status. * doc/html/*: Regenerate. * include/bits/fs_path.h (operator<, operator<=, operator>) (operator>=, operator==, operator!=): Make hidden friends, as per LWG 3065. * testsuite/27_io/filesystem/path/native/string-char8_t.cc: Fix string type in test. * testsuite/27_io/filesystem/path/native/string.cc: Likewise. * include/std/any (any::any(ValueType&&)): Use __and_v. * include/std/numeric (midpoint(T, T, T), midpoint(T*, T*, T*)): Likewise. * include/std/tuple (apply): Use remove_reference_t instead of decay_t as per P0777R1. * include/std/type_traits (__result_of_memfun): Use remove_reference instead of __remove_cvref_t and remove redundant is_same check. (__inv_unwrap): Use __remove_cvref_t instead of decay_t. * include/experimental/string_view (basic_string_view::pointer) (basic_string_view::reference): Fix to refer to non-const value_type. * include/bits/basic_string.h (basic_string): Use __sv_check and __sv_limit instead of basic_string_view::_M_check and basic_string_view::_M_limit. * include/std/string_view (__sv_check, __sv_limit): New helper functions to replace basic_string_view::_M_check and basic_string_view::_M_limit. (basic_string_view): Add static assertions to enforce ill-formed requirement for traits_type::char_type from P1148R0, and to enforce required properties of char-like types. (basic_string_view::pointer, basic_string_view::reference): Fix to refer to non-const value_type. (basic_string_view::operator[], basic_string_view::at) (basic_string_view::front, basic_string_view::back) (basic_string_view::data): Use const_reference and const_pointer typedefs for return types. (basic_string_view::_M_check, basic_string_view::_M_limit): Remove. (hash): Fix argument_type typedef. * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/ char/1.cc: Fix expected return type of basic_string_view::data(). * testsuite/21_strings/basic_string_view/modifiers/remove_prefix/ wchar_t/1.cc: Likewise. * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/ char/1.cc: Likewise. * testsuite/21_strings/basic_string_view/modifiers/remove_suffix/ wchar_t/1.cc: Likewise. * testsuite/21_strings/basic_string_view/requirements/traits_neg.cc: New test. * testsuite/21_strings/basic_string_view/requirements/typedefs.cc: Check reference and pointer typedefs. * testsuite/experimental/string_view/requirements/typedefs.cc: Likewise. * testsuite/experimental/string_view/modifiers/remove_prefix/char/1.cc: Fix expected return type of basic_string_view::data(). * testsuite/experimental/string_view/modifiers/remove_prefix/wchar_t/ 1.cc: Likewise. * testsuite/experimental/string_view/modifiers/remove_suffix/char/1.cc: Likewise. * testsuite/experimental/string_view/modifiers/remove_suffix/wchar_t/ 1.cc: Likewise. PR libstdc++/90220 * include/std/any (__any_caster): Use remove_cv_t instead of decay_t. Avoid a runtime check for types that can never be stored in std::any. * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with array types. PR libstdc++/90220 (partial) * include/std/any (any_cast(any*), any_cast(const any*)): Do not attempt ill-formed static_cast to pointers to non-object types. * testsuite/20_util/any/misc/any_cast.cc: Test std::any_cast with function types. * testsuite/20_util/variant/run.cc: Catch exception by reference to prevent -Wcatch-value warning. * include/std/variant (__variant_construct): Use template parameter type instead of equivalent decltype-specifier. (_Move_ctor_base::_Move_ctor_base(_Move_ctor_base&&)): Replace forward with move. (_Move_ctor_base::_M_destructive_move) (_Move_ctor_base::_M_destructive_copy) (_Move_ctor_base::_M_destructive_move) (_Move_ctor_base::_M_destructive_copy): Only set the index after construction succeeds. (_Copy_assign_base::operator=): Remove redundant if-constexpr checks that are always true. Use __remove_cvref_t instead of remove_reference so that is_nothrow_move_constructible check doesn't use a const rvalue parameter. In the potentially-throwing case construct a temporary and move assign it, as per LWG 2904. (_Move_assign_base::operator=): Remove redundant if-constexpr checks that are always true. Use emplace as per LWG 2904. (variant::operator=(T&&)): Only use emplace conditionally, otherwise construct a temporary and move assign from it, as per LWG 2904. * testsuite/20_util/variant/exception_safety.cc: Check that assignment operators have strong exception safety guarantee. 2019-04-23 Thomas Rodgers Document PSTL linker flags * doc/xml/manual/using.xml: Add PSTL linker flags to table 3.1. 2019-04-23 Jonathan Wakely * include/std/variant (__detail::__variant::_Traits): Make _S_trivial_copy_assign depend on _S_trivial_copy_ctor and make _S_trivial_move_assign depend on _S_trivial_move_ctor, as per P0602R4. (__detail::__variant::_Copy_assign_alias): Only depend on _S_trivial_copy_assign, which subsumes _S_trivial_copy_ctor now. * testsuite/20_util/variant/compile.cc: Correct checks for trivial move assignment operators. PR libstdc++/90165 * include/std/variant (variant::__not_self): New helper for the is_same_v, variant>==false constraints. (variant::__to_type_impl): Remove. (variant::__to_type): Add default argument to check pack size, instead of using __to_type_impl. (variant::__accepted_type): Add default argument using __not_self. (variant::__is_in_place_tag, variant::__not_in_place_tag): New helpers for variant(T&&) constructor constraint. (variant::variant(T&&)): Use __not_in_place_tag in constraints. Extract __accepted_type into a named template parameter for reuse in other constraints and in the exception specification. (variant::variant(in_place_type_t, Args&&...)) (variant::variant(in_place_type_t, initializer_list, Args&&...)) (variant::variant(in_place_index_t, Args&&...)) (variant::variant(in_place_index_t, initializer_list, Args&&...)) (variant::operator=T&&)): Remove redundant && from trait arguments. * testsuite/20_util/variant/compile.cc: Check variant(T&&) constructor isn't used for in_place_type or in_place_index arguments. * include/std/type_traits (unwrap_reference_t): Define for C++2a. (unwrap_ref_decay): Remove inheritance from unwrap_reference. * testsuite/20_util/unwrap_reference/1.cc: Adjust test to use alias. 2019-04-23 Ramana Radhakrishnan Bernd Edlinger Jakub Jelinek PR target/89093 * libsupc++/eh_personality.cc (PERSONALITY_FUNCTION): Add general-regs-only target attribute for ARM. 2019-04-23 Jonathan Wakely PR libstdc++/87431 * include/bits/basic_string.h (_Never_valueless_alt): Make partial specialization also depend on is_nothrow_move_constructible. * include/std/variant (__detail::__variant::__never_valueless()): Only true if the variant would have a move assignment operator. (__detail::__variant::_Variant_storage::_M_valid()): Check __never_valueless(). (variant::emplace): Only perform non-throwing move assignments for never-valueless alternatives if the variant has a move assignment operator. * testsuite/20_util/variant/compile.cc: Check that never-valueless types can be emplaced into non-assignable variants. * testsuite/20_util/variant/run.cc: Check that never-valueless types don't get copied when emplaced into non-assignable variants. * include/std/variant (__detail::__variant::__ref_cast): Remove unused function. (__detail::__variant::_Uninitialized::_M_get) (__detail::__variant::__get) (__gen_vtable_impl::__element_by_index_or_cookie): Add noexcept. 2019-04-21 Iain Sandoe * testsuite/17_intro/headers/c++1998/charset.cc: Skip for Darwin8 to Darwin10. * testsuite/17_intro/headers/c++2011/charset.cc: Likewise. * testsuite/17_intro/headers/c++2014/charset.cc: Likewise. * testsuite/17_intro/headers/c++2017/charset.cc: Likewise. * testsuite/17_intro/headers/c++2020/charset.cc: Likewise. 2019-04-20 Thomas Rodgers Delegate PSTL configuration to pstl/pstl_config.h * include/bits/c++config: Remove explicit PSTL configuration macros and use definitions from . 2019-04-20 Thomas Rodgers Cleanup algorithm implementations * include/pstl/glue_algorithm_impl.h (stable_sort): Forward execution policy. (mismatch): Forward execution policy. (equal): Qualify call to std::equal(). (partial_sort): Forward execution policy. (inplace_merge): Forward execution policy. 2019-04-19 Thomas Rodgers Improve implementation of parallel equal() * include/pstl/algorithm_impl.h (__internal::__brick_equal): use "4 iterator" version of std::equal(). (__internal::__brick_equal): use simd for random access iterators on unsequenced execution policies. (__internal::__pattern_equal): add "4 iterator" version (__internal::__pattern_equal): dispatch to simd __brick_equal for vector-only execution policies. (__internal::__pattern_equal): dispatch to __parallel_or for parallel execution policies. * include/pstl/glue_algorithm_impl.h (std::equal): dispatch to "4 iterator" version of __internal::__pattern_equal(). 2019-04-17 Jonathan Wakely PR libstdc++/90105 * include/bits/forward_list.h (operator==): Do not use operator!= to compare elements. (forward_list::sort(Comp)): When elements are equal take the one earlier in the list, so that sort is stable. * testsuite/23_containers/forward_list/operations/90105.cc: New test. * testsuite/23_containers/forward_list/comparable.cc: Test with types that meet the minimum EqualityComparable and LessThanComparable requirements. Remove irrelevant comment. * include/std/variant (__detail::__variant::_Traits::_S_copy_assign): Do not depend on whether all alternative types are move constructible. (__detail::__variant::_Copy_assign_base::operator=): Remove cv-quals from the operand when deciding whether to perform the assignment. * testsuite/20_util/variant/compile.cc (DeletedMoves): Define type with deleted move constructor and deleted move assignment operator. (default_ctor, copy_ctor, move_ctor, copy_assign, move_assign): Check behaviour of variants with DeletedMoves as an alternative. * testsuite/20_util/variant/run.cc (DeletedMoves): Define same type. (move_ctor, move_assign): Check that moving a variant with a DeletedMoves alternative falls back to copying instead of moving. * testsuite/20_util/variant/compile.cc: Remove empty string literals from static_assert declarations. * testsuite/20_util/variant/compile.cc (MoveCtorOnly): Fix type to actually match its name. (MoveCtorAndSwapOnly): Define new type that adds swap to MoveCtorOnly. (test_swap()): Fix result for MoveCtorOnly and check MoveCtorAndSwapOnly. * include/std/optional (optional::value_or(U&&) &&): Add missing constexpr specifier. * testsuite/20_util/optional/constexpr/observers/4.cc: Check value_or for disengaged optionals and rvalue optionals. * testsuite/20_util/optional/observers/4.cc: Likewise. 2019-04-12 Thomas Rodgers * include/pstl/algorithm_impl.h: Uglify identfiers. * include/pstl/numeric_impl.h: Uglify identfiers. * include/pstl/parallel_backend_tbb.h: Uglify identfiers. 2019-04-11 Thomas Rodgers * include/bits/c++config: Add definition for __PSTL_ASSERT. Add definition for __PSTL_ASSERT_MSG. * include/pstl/algorithm_impl.h: Replace use of assert(). * include/pstl/numeric_impl.h: Replace use of assert(). * include/pstl/parallel_backend_tbb.h: Replace use of assert(). Replace use of __TBB_ASSERT(). * include/pstl/parallel_backend_utils.h: Replace use of assert(). 2019-04-11 Jonathan Wakely PR libstdc++/90046 * src/c++17/memory_resource.cc (monotonic_buffer_resource::_Chunk::allocate): Increase alignment if needed to allow placing a _Chunk at the end of the buffer. (monotonic_buffer_resource::_M_new_buffer): Remove static_assert. 2019-04-10 Jonathan Wakely * doc/xml/faq.xml: Add information about emergency EH pool. * doc/xml/manual/debug.xml: Update list of memory debugging tools. Move outdated information on mt_allocator to a separate section. * doc/xml/manual/evolution.xml: Clarify that GLIBCXX_FORCE_NEW doesn't affect the default allocator. * testsuite/lib/libstdc++.exp (check_v3_target_parallel_mode): Fix typo. PR libstdc++/89851 * testsuite/20_util/variant/89851.cc: New test. 2019-04-09 Jonathan Wakely * include/std/variant: Adjust whitespace. Add comments. (_Multi_array): Leave primary template undefined. (_Multi_array<_Tp>): Define partial specialization for base case of recursion. (__gen_vtable_impl, __gen_vtable): Remove redundant && from type which is always a reference. (__gen_vtable::_S_apply()): Remove function, inline body into default member initializer. * testsuite/20_util/variant/visit.cc: Test with noncopyable types. * include/std/variant (__variant_idx_cookie): Add member type. (__visitor_result_type): Remove. (__do_visit): Use invoke_result instead of __visitor_result_type. * testsuite/20_util/variant/visit.cc: New test. PR libstdc++/90008 * include/std/variant (_VARIANT_RELATION_FUNCTION_TEMPLATE): Remove unused capture. * testsuite/20_util/variant/90008.cc: New test. 2019-04-09 Thomas Rodgers * include/pstl/algorithm_impl.h: Add namespace qualification. * include/pstl/execution_defs.h: Add namespace qualification. * include/pstl/execution_impl.h: Add namespace qualification. * include/pstl/numeric_impl.h: Add namespace qualification. * include/pstl/parallel_backend_tbb.h: Add namespace qualification. * include/pstl/unseq_backend_simd.h: Add namespace qualification. * include/pstl/parallel_backend_utils.h: Include . 2019-04-08 Ville Voutilainen Fix visit for variant. * include/std/variant (__do_visit): Add a template parameter for enforcing same return types for visit. (__gen_vtable_impl): Likewise. (_S_apply_single_alt): Adjust. (__visit_invoke_impl): New. Handle casting to void. (__do_visit_invoke): New. Enforces same return types. (__do_visit_invoke_r): New. Converts return types. (__visit_invoke): Adjust. (__gen_vtable): Add a template parameter for enforcing same return types for visit. * testsuite/20_util/variant/visit_r.cc: Add a test for a visitor with different return types. * testsuite/20_util/variant/visit_neg.cc: New. Ensures that visitors with different return types don't accidentally compile with regular visitation. 2019-04-08 Christophe Lyon * testsuite/27_io/filesystem/iterators/caching.cc: Add dg-require-filesystem-ts. 2019-04-05 Jonathan Wakely * doc/xml/manual/status_cxx2020.xml: Update status. * include/std/variant (visit): Define for C++2a (P0655R1). * testsuite/20_util/variant/visit_r.cc: New test. * include/bits/fs_dir.h (directory_iterator::operator*) (directory_iterator::operator->): Add noexcept. (operator==, operator!=): Replace namespace-scope equality operators for directory iterators with hidden friends. PR libstdc++/89986 * config/abi/pre/gnu.ver: Add missing exports. * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Test increment member. * config/abi/pre/gnu.ver: Export new symbols. * include/bits/fs_dir.h (recursive_directory_iterator::options()) (recursive_directory_iterator::recursion_pending()) (recursive_directory_iterator::disable_recursion_pending()): Remove inline definitions. Make noexcept. (recursive_directory_iterator::depth()) (recursive_directory_iterator::operator*()) (recursive_directory_iterator::operator->()): Make noexcept. (recursive_directory_iterator::_M_options) (recursive_directory_iterator::_M_pending): Remove data members. * src/c++17/fs_path.cc (_Dir_stack): Add constructor and data members. (recursive_directory_iterator::recursive_directory_iterator): Remove ctor-initializer. Use new constructor for _Dir_stack. (recursive_directory_iterator::options()) (recursive_directory_iterator::recursion_pending()) (recursive_directory_iterator::disable_recursion_pending()): Add non-inline definitions. (recursive_directory_iterator::depth()): Make noexcept. (recursive_directory_iterator::increment(error_code&)) (recursive_directory_iterator::pop(error_code&)): Adjust to new location of options and recursion_pending members. * testsuite/27_io/filesystem/iterators/recursion_pending.cc: New test. * testsuite/util/testsuite_fs.h (__gnu_test::scoped_file): Add user-declared move constructor and assignment operator, to make the type move-only. * src/c++17/fs_dir.cc (_Dir::advance(bool, error_code&)): Handle d_type == DT_UNKNOWN immediately. (_Dir::should_recurse(bool, error_code&)): Remove file_type::unknown handling here. * testsuite/27_io/filesystem/iterators/caching.cc: New test. * include/bits/fs_path.h (path::operator=(path&&)): Check for self assignment. * src/c++17/fs_path.cc (path::operator=(const path&)): Likewise. * testsuite/27_io/filesystem/path/assign/copy.cc: Test self assignment. PR libstdc++/87431 (again) * include/bits/basic_string.h (__variant::_Never_valueless_alt): Define partial specialization for basic_string. * include/bits/shared_ptr.h (_Never_valueless_alt): Likewise for shared_ptr and weak_ptr. * include/bits/std_function.h (_Never_valueless_alt): Likewise for function. * include/bits/stl_vector.h (_Never_valueless_alt): Likewise for vector. * include/bits/unique_ptr.h (_Never_valueless_alt): Likewise for unique_ptr. * include/debug/vector (_Never_valueless_alt): Likewise for debug vector. * include/std/any (_Never_valueless_alt): Define explicit specialization for any. * include/std/variant (_Never_valueless_alt): Define primary template. (__never_valueless): Use _Never_valueless_alt instead of is_trivially_copyable. (variant::emplace(Args&&...)): Add special case for non-throwing initializations to avoid try-catch overhead. Add special case for scalars produced by potentially-throwing conversions. Use _Never_valueless_alt instead of is_trivially_copyable for the remaining strong exception-safety cases. (variant::emplace(initializer_list, Args&&...)): Likewise. * testsuite/20_util/variant/87431.cc: Run both test functions. * testsuite/20_util/variant/exception_safety.cc: New test. * testsuite/20_util/variant/run.cc: Use pmr::string instead of string, so the variant becomes valueless. 2019-04-03 Jonathan Wakely PR libstdc++/85184 * include/std/variant (_Copy_assign_base, _Move_assign_base, variant): Remove assertions. (variant::emplace<_Tp>): Return result of emplace directly. * include/std/string (__hash_string_base): New class template defining operator() for hashing strings. (hash, hash, hash) (hash, hash): Define for C++17. * testsuite/21_strings/basic_string/hash/hash.cc: New test. * testsuite/21_strings/basic_string/hash/hash_char8_t.cc: New test. 2019-04-01 Ville Voutilainen Use single-visitation in variant assignment and swap and relops. Also use indices instead of types when checking whether variants hold the same thing. * include/std/variant (__do_visit): Add a template parameter for index visitation, invoke with indices if index visitation is used. (__variant_idx_cookie): New. (__visit_with_index): Likewise. (_Copy_assign_base::operator=): Do single-visitation with an index visitor. (_Move_assign_base::operator=): Likewise. (_Extra_visit_slot_needed): Adjust. (__visit_invoke): Call with indices if it's an index visitor. (relops): Do single-visitation with an index visitor. (swap): Likewise. (__visitor_result_type): New. 2019-03-30 Eric Botcazou * src/c++17/fs_ops.cc (fs::permissions): Use std::errc::not_supported. 2019-03-28 Ville Voutilainen Don't revisit a variant we are already visiting. * include/std/variant (__variant_construct_single): New. (__variant_construct): Use it. (_M_destructive_move): Likewise. (_M_destructive_copy): Likewise. (_Copy_assign_base::operator=): Adjust. (_Move_assign_base::operator=): Likewise. (swap): Likewise. 2019-03-26 Jonathan Wakely PR libstdc++/85965 * include/bits/hashtable.h (_Hashtable): Move static assertions to destructor so they are not evaluated until the _Key type is complete. * include/bits/stl_tree.h (_Rb_tree): Likewise. * testsuite/23_containers/set/85965.cc: New test. * testsuite/23_containers/unordered_set/85965.cc: New test. * testsuite/23_containers/map/48101_neg.cc: Replace "here" errors with regexp matching the corresponding _Rb_tree specialization. * testsuite/23_containers/multimap/48101_neg.cc: Likewise. * testsuite/23_containers/multiset/48101_neg.cc: Remove "here" error. * testsuite/23_containers/set/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_map/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_multimap/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_multiset/48101_neg.cc: Likewise. * testsuite/23_containers/unordered_set/48101_neg.cc: Likewise. 2019-03-26 Ville Voutilainen PR libstdc++/89825 Fix based on a suggestion by Antony Polukhin. * include/std/variant (__never_valueless): New. (_M_valid): Use it. (_Extra_visit_slot_needed): New. (_Multi_array): Use it. (_S_apply_all_alts): Likewise. 2019-03-26 Ville Voutilainen PR libstdc++/89824 Fix based on a suggestion by Antony Polukhin. * include/std/variant (__gen_vtable): Don't reserve an additional table slot, _Multi_array already does that. 2019-03-26 Ville Voutilainen PR libstdc++/89816 Fix based on a suggestion by Antony Polukhin. * include/std/variant (__variant_construct): Capture a pointer to the storage and visit just one variant. 2019-03-22 Jonathan Wakely * doc/xml/manual/backwards_compatibility.xml: Remove link to Doxygen-generated pages with unstable URL. * doc/xml/manual/concurrency_extensions.xml: Likewise. * doc/xml/manual/extensions.xml: Likewise. * doc/xml/manual/parallel_mode.xml: Likewise. * doc/xml/manual/support.xml: Likewise. * include/bits/stl_algobase.h (__lg): Do arithmetic on type int to avoid -Wconversion warnings. 2019-03-21 Thomas Rodgers * include/Makefile.am (std_header): Add ${std_srcdir}/execution. (pstl_srcdir, pstl_builddir, pstl_headers): New variables. (allstamped): Add stamp-pstl. (install-headers): Add ptsl_builddir. * include/Makefile.in: Regenerate. * include/bits/c++config: Add pstl configuration. * include/pstl/LICENSE.txt: New file. * include/pstl/algorithm_fwd.h: New file. * include/pstl/algorithm_impl.h: New file. * include/pstl/execution_defs.h: New file. * include/pstl/execution_impl.h: New file. * include/pstl/glue_algorithm_defs.h: New file. * include/pstl/glue_algorithm_impl.h: New file. * include/pstl/glue_execution_defs.h: New file. * include/pstl/glue_memory_defs.h: New file. * include/pstl/glue_memory_impl.h: New file. * include/pstl/glue_numeric_defs.h: New file. * include/pstl/glue_numeric_impl.h: New file. * include/pstl/memory_impl.h: New file. * include/pstl/numeric_fwd.h: New file. * include/pstl/numeric_impl.h: New file. * include/pstl/parallel_backend.h: New file. * include/pstl/parallel_backend_tbb.h: New file. * include/pstl/parallel_backend_utils.h: New file. * include/pstl/parallel_impl.h: New file. * include/pstl/pstl_config.h: New file. * include/pstl/unseq_backend_simd.h: New file. * include/pstl/utils.h: New file. * include/std/algorithm: Include parallel algorithm implementations. * include/std/execution: New file. * include/std/memory: Include parallel algorithm implementations. * include/std/numeric: Include parallel algorithm implementations. * include/std/version: Add parallel algorithms feature test macro. * testsuite/util/pstl/pstl_test_config.h: New file. * testsuite/util/pstl/test_utils.h: New file. * testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file. * testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file. * testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file. * testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file. * testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file. * testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file. * testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file. * testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file. * testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file. * testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file. * testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file. * testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file. * testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file. * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_construct.cc: New file. * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_copy_move.cc: New file. * testsuite/testsuite/20_util/specialized_algorithms/pstl/uninitialized_fill_destroy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_merge/inplace_merge.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_merge/merge.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_if.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/copy_move.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/fill.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/generate.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/is_partitioned.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/partition_copy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/remove_copy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/replace_copy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/rotate_copy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/swap_ranges.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_binary.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/transform_unary.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_modifying_operations/unique_copy_equal.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/adjacent_find.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/all_of.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/any_of.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/count.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/equal.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_end.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_first_of.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/find_if.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/for_each.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/mismatch.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/none_of.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/nth_element.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/reverse_copy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_nonmodifying/search_n.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/includes.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_heap.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/is_sorted.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/lexicographical_compare.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/minmax_element.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/partial_sort_copy.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/set.cc: New file. * testsuite/testsuite/25_algorithms/pstl/alg_sorting/sort.cc: New file. * testsuite/testsuite/26_numerics/pstl/numeric_ops/adjacent_difference.cc: New file. * testsuite/testsuite/26_numerics/pstl/numeric_ops/reduce.cc: New file. * testsuite/testsuite/26_numerics/pstl/numeric_ops/scan.cc: New file. * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_reduce.cc: New file. * testsuite/testsuite/26_numerics/pstl/numeric_ops/transform_scan.cc: New file. 2019-03-21 Jonathan Wakely * include/c_compatibility/math.h [!__STDCPP_WANT_MATH_SPEC_FUNCS__] (assoc_laguerre, assoc_laguerref, assoc_laguerrel, assoc_legendre) (assoc_legendref, assoc_legendrel, beta, betaf, betal, comp_ellint_1) (comp_ellint_1f, comp_ellint_1l, comp_ellint_2, comp_ellint_2f) (comp_ellint_2l, comp_ellint_3, comp_ellint_3f, comp_ellint_3l) (cyl_bessel_i, cyl_bessel_if, cyl_bessel_il, cyl_bessel_j) (cyl_bessel_jf, cyl_bessel_jl, cyl_bessel_k, cyl_bessel_kf) (cyl_bessel_kl, cyl_neumann, cyl_neumannf, cyl_neumannl, ellint_1) (ellint_1f, ellint_1l, ellint_2, ellint_2f, ellint_2l, ellint_3) (ellint_3f, ellint_3l, expint, expintf, expintl, hermite, hermitef) (hermitel, laguerre, laguerref, laguerrel, legendre, legendref) (legendrel, riemann_zeta, riemann_zetaf, riemann_zetal, sph_bessel) (sph_besself, sph_bessell, sph_legendre, sph_legendref, sph_legendrel) (sph_neumann, sph_neumannf, sph_neumannl): Only add using-declarations when the special functions IS is enabled, not for C++17. * testsuite/26_numerics/headers/cmath/functions_global_c++17.cc: Replace with ... * testsuite/26_numerics/headers/cmath/functions_global.cc: New test, without checks for special functions in C++17. * testsuite/26_numerics/headers/cmath/special_functions_global.cc: New test. PR libstdc++/88066 * include/backward/hash_map: Use <> for includes not "". * include/backward/hash_set: Likewise. * include/backward/strstream: Likewise. * include/tr1/bessel_function.tcc: Likewise. * include/tr1/exp_integral.tcc: Likewise. * include/tr1/legendre_function.tcc: Likewise. * include/tr1/modified_bessel_func.tcc: Likewise. * include/tr1/riemann_zeta.tcc: Likewise. 2019-03-19 Jonathan Wakely * doc/xml/manual/allocator.xml: Link to table documenting evolution of extension allocators. * doc/xml/manual/evolution.xml: Use angle brackets for header names. Document new headers in 7.2, 8.1 and 9.1 releases. * doc/xml/manual/using.xml: Adjust link target for new_allocator. * doc/html/*: Regenerate. 2019-03-12 John David Anglin PR libstdc++/89461 * testsuite/lib/libstdc++.exp: Locate libatomic. * testsuite/lib/dg-options.exp (add_options_for_libatomic): New. * testsuite/20_util/shared_ptr/thread/default_weaktoshared.cc: Add libatomic options. * testsuite/20_util/shared_ptr/thread/mutex_weaktoshared.cc: Likewise. * testsuite/experimental/net/timer/waitable/cons.cc: Likewise. * testsuite/experimental/net/timer/waitable/dest.cc: Likewise. * testsuite/experimental/net/timer/waitable/ops.cc: Likewise. 2019-03-11 Jonathan Wakely PR libstdc++/89460 * configure.ac: Check for sockatmark. * crossconfig.m4: Check for sockatmark. * config.h.in: Regenerate. * configure: Regenerate. * include/experimental/internet (address_v4::_S_hton): Rename overloaded functions to _S_hton_16 and _S_ntoh_16. (address_v4::_S_ntoh): Rename to _S_ntoh_16 and _S_ntoh_32. (basic_endpoint): Adjust calls to _S_hton and _S_ntoh. * include/experimental/socket (basic_socket::at_mark): Check _GLIBCXX_HAVE_SOCKATMARK. * testsuite/29_atomics/atomic_flag/test_and_set/explicit-hle.cc: Use const variables instead of macros. PR libstdc++/89629 * libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes): Use correct type for len_aligned. * testsuite/20_util/hash/89629.cc: New test. 2019-03-11 Jakub Jelinek PR libstdc++/89641 * include/std/atomic (atomic::store, atomic::load, atomic::exchange, atomic::compare_exchange_weak, atomic::compare_exchange_strong): Cast __m or __s and __f to int. * include/bits/atomic_base.h (__atomic_base::operator++, __atomic_base::operator--, __atomic_base::operator+=, __atomic_base::operator-=, __atomic_base::operator&=, __atomic_base::operator|=, __atomic_base::operator^=, __atomic_base::operator++, __atomic_base::operator--, __atomic_base::operator+=, __atomic_base::operator-=): Cast memory_order_seq_cst to int. 2019-03-08 Jonathan Wakely * doc/xml/manual/using.xml: Use link element instead of xref. * doc/html/*: Regenerate. * include/bits/fs_path.h (path::format): Add fixed underlying type. 2019-03-08 François Dumont PR libstdc++/89477 * include/debug/map.h (map): Use _RequireNotAllocator to constrain parameters in deduction guides. * include/debug/multimap.h (multimap): Likewise. * include/debug/set.h (multimap): Likewise. * include/debug/multiset.h (multimap): Likewise. * include/debug/unordered_map (unordered_map): Likewise. (unordered_multimap): Likewise. * include/debug/unordered_set (unordered_set): Likewise. (unordered_multiset): Likewise. PR libstdc++/89608 * include/debug/unordered_map (unordered_map<>::_M_check_rehashed): Invalidate all iterators in case of rehash. (unordered_multimap<>::_M_check_rehashed): Likewise. * include/debug/unordered_set (unordered_set<>::_M_check_rehashed): Likewise. (unordered_multiset<>::_M_check_rehashed): Likewise. * testsuite/23_containers/unordered_set/debug/89608_neg.cc: New. 2019-03-07 Andreas Schwab * config/abi/post/riscv64-linux-gnu: New directory. * config/abi/post/riscv64-linux-gnu/baseline_symbols.txt: New file. 2019-03-07 Jonathan Wakely * testsuite/20_util/function_objects/bind_front/1.cc: Change from compile test to run. Fix typo. * doc/xml/manual/status_cxx2020.xml: Update C++20 status. * doc/html/*: Regenerate. P0356R5 Simplified partial function application * include/std/functional [C++20] (_Bind_front, _Bind_front_t): Define helpers for bind_front. (bind_front, __cpp_lib_bind_front): Define. * testsuite/20_util/function_objects/bind_front/1.cc: New test. 2019-03-06 Jonathan Wakely * include/std/type_traits (__cpp_lib_bounded_array_traits): Define. * include/std/version (__cpp_lib_bounded_array_traits): Likewise. * testsuite/20_util/is_bounded_array/value.cc: Check for macro. * testsuite/20_util/is_unbounded_array/value.cc: Likewise. 2019-03-06 Edward Smith-Rowland <3dw4rd@verizon.net> PR libstdc++/86655 - std::assoc_legendre should not constrain the value of m (or x). * include/tr1/legendre_function.tcc (__assoc_legendre_p, __sph_legendre): If degree > order Don't throw, return 0. (__legendre_p, __assoc_legendre_p): Don't constrain x either. * testsuite/special_functions/02_assoc_legendre/pr86655.cc: New test. * testsuite/special_functions/20_sph_legendre/pr86655.cc: New test. * testsuite/tr1/5_numerical_facilities/special_functions/ 02_assoc_legendre/pr86655.cc: New test. * testsuite/tr1/5_numerical_facilities/special_functions/ 22_sph_legendre/pr86655.cc: New test. 2019-03-06 Ville Voutilainen Rewrite variant. Also PR libstdc++/85517 * include/std/variant (__do_visit): New. (__variant_cast): Likewise. (__variant_cookie): Likewise. (__erased_*): Remove. (_Variant_storage::_S_vtable): Likewise. (_Variant_storage::__M_reset_impl): Adjust to use __do_visit. (_Variant_storage::__M_reset): Adjust. (__variant_construct): New. (_Copy_ctor_base(const _Copy_ctor_base&)): Adjust to use __variant_construct. (_Move_ctor_base(_Move_ctor_base&&)): Likewise. (_Move_ctor_base::__M_destructive_copy): New. (_Move_ctor_base::__M_destructive_move): Adjust to use __variant_construct. (_Copy_assign_base::operator=): Adjust to use __do_visit. (_Copy_assign_alias): Adjust to check both copy assignment and copy construction for triviality. (_Move_assign_base::operator=): Adjust to use __do_visit. (_Multi_array): Add support for visitors that accept and return a __variant_cookie. (__gen_vtable_impl::_S_apply_all_alts): Likewise. (__gen_vtable_impl::_S_apply_single_alt): Likewise. (__gen_vtable_impl::__element_by_index_or_cookie): New. Generate a __variant_cookie temporary for a variant that is valueless and.. (__gen_vtable_impl::__visit_invoke): ..adjust here. (__gen_vtable::_Array_type): Conditionally make space for the __variant_cookie visitor case. (__variant_construct_by_index): New. (get_if): Adjust to use std::addressof. (relops): Adjust to use __do_visit. (variant): Add __variant_cast and __variant_construct_by_index as friends. (variant::emplace): Use _M_reset() and __variant_construct_by_index instead of self-destruction. (variant::swap): Adjust to use __do_visit. (visit): Reimplement in terms of __do_visit. (__variant_hash_call_base_impl::operator()): Adjust to use __do_visit. * testsuite/20_util/variant/compile.cc: Adjust. * testsuite/20_util/variant/run.cc: Likewise. 2019-03-06 Jonathan Wakely * include/bits/c++config.h (_cpp_lib_char8_t): Add L suffix to constant. * testsuite/experimental/feat-char8_t.cc: Likewise. * include/std/type_traits [C++20] (is_bounded_array) (is_unbounded_array, is_bounded_array_v, is_unbounded_array_v): Define. * testsuite/20_util/is_bounded_array/requirements/ explicit_instantiation.cc: New test. * testsuite/20_util/is_bounded_array/requirements/typedefs.cc: New test. * testsuite/20_util/is_bounded_array/value.cc: New test. * testsuite/20_util/is_unbounded_array/requirements/ explicit_instantiation.cc: New test. * testsuite/20_util/is_unbounded_array/requirements/typedefs.cc: New * test. * testsuite/20_util/is_unbounded_array/value.cc: New test. * include/bits/ptr_traits.h [C++20] (pointer_traits::pointer_to): Add constexpr. * testsuite/20_util/pointer_traits/pointer_to_constexpr.cc: New test. 2019-03-05 Jonathan Wakely * include/c_compatibility/math.h [C++20] (lerp): Add using declaration. * include/c_global/cmath [C++20] (__cpp_lib_interpolate): Define. (__lerp): Define function template to implement lerp. (lerp(float, float, float), lerp(double, double, double)) (lerp(long double, long double, long double)): Define for C++20. * include/std/numeric [C++20] (__cpp_lib_interpolate): Define. (midpoint(T, T), midpoint(T*, T*)): Define. * include/std::version [C++20] (__cpp_lib_interpolate): Define. * testsuite/26_numerics/lerp.cc: New test. * testsuite/26_numerics/midpoint/floating.cc: New test. * testsuite/26_numerics/midpoint/integral.cc: New test. * testsuite/26_numerics/midpoint/pointer.cc: New test. 2019-03-04 Edward Smith-Rowland <3dw4rd@verizon.net> PR libstdc++/88996 Implement P0439R0 Make std::memory_order a scoped enumeration. * include/bits/atomic_base.h: For C++20 make memory_order a scoped enum, add variables for the old enumerators. Adjust calls. * testsuite/29_atomics/headers/atomic/types_std_c++2a.cc: New test. * testsuite/29_atomics/headers/atomic/types_std_c++2a_neg.cc: New test. 2019-03-04 Jonathan Wakely * testsuite/26_numerics/bit/bitops.rot/rotl.cc: Remove bogus dg-do directive. * include/std/memory_resource (polymorphic_allocator): Add default template argument for C++20. (polymorphic_allocator::allocate_bytes) (polymorphic_allocator::deallocate_bytes) (polymorphic_allocator::allocate_object) (polymorphic_allocator::deallocate_object) (polymorphic_allocator::new_object) (polymorphic_allocator::delete_object): New member functions for C++20. * testsuite/20_util/polymorphic_allocator/allocate_object.cc: New test. 2019-03-03 Jonathan Wakely PR libstdc++/89562 * src/filesystem/ops-common.h (do_copy_file): Open files in binary mode for mingw. 2019-03-01 Jonathan Wakely * testsuite/util/testsuite_allocator.h (__gnu_test::memory_resource) [!__cpp_sized_deallocation]: Do not pass size to operator delete. * include/std/memory (uses_allocator_construction_args): New set of overloaded functions. (make_obj_using_allocator, uninitialized_construct_using_allocator): New functions. * include/std/memory_resource (polymorphic_allocator::construct) [__cplusplus > 201703l]: Replace all overloads with a single function using uses_allocator_construction_args. * testsuite/20_util/polymorphic_allocator/construct_c++2a.cc: New test. * testsuite/20_util/uses_allocator/make_obj.cc: New test. 2019-02-27 Jonathan Wakely PR libstdc++/89466 * acinclude.m4 (GLIBCXX_CONFIGURE_DOCBOOK): Reorder check for local stylesheet directories before check for xsltproc. Try to use xmlcatalog to find local stylesheet directory before trying hardcoded paths. Add path used by suse to hardcoded paths. Adjust xsltproc check to look for the same stylesheet as doc/Makefile.am uses. Don't use xsltproc if xmlcatalog fails to find a local stylesheet. * configure.ac: Check for xmlcatalog. * Makefile.in: Regenerate. * configure: Likewise. * doc/Makefile.in: Likewise. * include/Makefile.in: Likewise. * libsupc++/Makefile.in: Likewise. * po/Makefile.in: Likewise. * python/Makefile.in: Likewise. * src/Makefile.in: Likewise. * src/c++11/Makefile.in: Likewise. * src/c++17/Makefile.in: Likewise. * src/c++98/Makefile.in: Likewise. * src/filesystem/Makefile.in: Likewise. * testsuite/Makefile.in: Likewise. 2019-02-26 Jonathan Wakely PR libstdc++/89477 * include/bits/alloc_traits.h (_RequireNotAllocator): New helper for container deduction guides. * include/bits/hashtable.h (_RequireNotAllocatorOrIntegral): Likewise. * include/bits/stl_map.h (map): Use _RequireNotAllocator to constrain parameters in deduction guides. * include/bits/stl_multimap.h (multimap): Likewise. * include/bits/stl_multiset.h (multiset): Likewise. * include/bits/stl_queue.h (queue, priority_queue): Likewise. * include/bits/stl_set.h (set): Likewise. * include/bits/stl_stack.h (stack): Likewise. * include/bits/unordered_map.h (unordered_map, unordered_multimap): use _RequireNotAllocator and _RequireNotAllocatorOrIntegral to constrain parameters in deduction guides. * include/bits/unordered_set.h (unordered_set, unordered_multiset): Likewise. * testsuite/23_containers/map/cons/deduction.cc: Test additional deduction cases. * testsuite/23_containers/multiset/cons/deduction.cc: Likewise. * testsuite/23_containers/set/cons/deduction.cc: Likewise. * testsuite/23_containers/unordered_map/cons/deduction.cc: Likewise. * testsuite/23_containers/unordered_multimap/cons/deduction.cc: Likewise. * testsuite/23_containers/unordered_multiset/cons/deduction.cc: Likewise. * testsuite/23_containers/unordered_set/cons/deduction.cc: Likewise. PR libstdc++/89416 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Change to class template and partial specialization using void_t. (__is_copy_insertable, __is_move_insertable): Adjust base class. 2019-02-24 Jonathan Wakely PR libstdc++/89416 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Make copy and move members public. 2019-02-23 Jonathan Wakely * include/std/type_traits (__underlying_type_impl): New helper to make underlying_type SFINAE-friendly. (underlying_type): Derive from __underlying_type_impl. * testsuite/20_util/underlying_type/requirements/typedefs-3.cc: New test. PR libstdc++/89446 * include/bits/char_traits.h (__constant_char_array): Check index is in range before dereferencing. (char_traits::compare, char_traits::find) (char_traits::compare, char_traits::find): Return immediately if n is zero. (char_traits::compare, char_traits::find): Likewise. Remove workarounds for PR 67026. * testsuite/21_strings/basic_string_view/operators/char/89446.cc: New test. * testsuite/21_strings/basic_string_view/operators/wchar_t/89446.cc: New test. 2019-02-22 Eric Botcazou * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: Adjust. * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: Likewise. 2019-02-22 Jakub Jelinek PR libstdc++/89402 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Change return type to std::size_t and argument to type to long double. 2019-02-22 Eric Botcazou * configure.host (abi_baseline_pair): Adjust for SPARC64/Linux. * config/abi/post/sparc64-linux-gnu: New directory. * config/abi/post/sparc64-linux-gnu/baseline_symbols.txt: New file. * config/abi/post/sparc64-linux-gnu/32: New directory. * config/abi/post/sparc64-linux-gnu/32/baseline_symbols.txt: New file. 2019-02-21 Jonathan Wakely * testsuite/29_atomics/headers/atomic/types_std_c++20.cc: New test. * testsuite/29_atomics/headers/atomic/types_std_c++20_neg.cc: New test. 2019-02-22 Tom Honermann * python/libstdcxx/v6/printers.py (register_type_printers): Add type printers for u8string and u8string_view. 2019-02-22 Tom Honermann * testsuite/18_support/byte/ops.cc: Validate std::to_integer, std::to_integer, and std::to_integer. * testsuite/18_support/numeric_limits/dr559.cc: Validate std::numeric_limits. * testsuite/18_support/numeric_limits/lowest.cc: Validate std::numeric_limits::lowest(). * testsuite/18_support/numeric_limits/max_digits10.cc: Validate std::numeric_limits::max_digits10. * testsuite/18_support/type_info/fundamental.cc: Validate typeinfo for char8_t. * testsuite/20_util/from_chars/1_c++20_neg.cc: New test, validating std::from_chars with char8_t. * testsuite/20_util/hash/requirements/explicit_instantiation.cc: Validate explicit instantiation of std::hash. * testsuite/20_util/is_integral/value.cc: Validate std::is_integral. * testsuite/20_util/make_signed/requirements/typedefs-4.cc: Validate std::make_signed. * testsuite/21_strings/basic_string/cons/char/deduction.cc: Validate u8string construction from char8_t sources. * testsuite/21_strings/basic_string/types/pmr_typedefs.cc: Validate std::pmr::u8string. * testsuite/21_strings/basic_string_view/operations/compare/ char/70483.cc: Validate substr operations on u8string_view. * testsuite/21_strings/basic_string_view/typedefs.cc: Validate that the u8string_view typedef is defined. * testsuite/21_strings/char_traits/requirements/ constexpr_functions.cc: Validate char_traits constexpr member functions. * testsuite/21_strings/char_traits/requirements/ constexpr_functions_c++17.cc: Validate char_traits C++17 constexpr member functions. * testsuite/21_strings/headers/string/types_std_c++0x.cc: Validate that the u8string typedef is defined. * testsuite/22_locale/locale/cons/unicode.cc: Validate the presence of the std::codecvt and std::codecvt facets. * testsuite/29_atomics/atomic/cons/assign_neg.cc: Update line numbers. * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/cons/assign_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/is_always_lock_free.cc: Validate std::atomic::is_always_lock_free * testsuite/29_atomics/atomic_integral/operators/bitwise_neg.cc: Update line numbers. * testsuite/29_atomics/atomic_integral/operators/decrement_neg.cc: Likewise. * testsuite/29_atomics/atomic_integral/operators/increment_neg.cc: Likewise. * testsuite/experimental/polymorphic_allocator/pmr_typedefs_string.cc: Validate std::experimental::pmr::u8string. * testsuite/experimental/string_view/typedefs.cc: Validate that the u8string_view typedef is defined. * testsuite/util/testsuite_common_types.h: Add char8_t, char16_t and char32_t to the typelists. 2019-02-22 Tom Honermann * include/ext/typelist.h: Constrain a partial specialization of typelist::detail::append_ to only match chain. 2019-02-21 Jonathan Wakely PR libstdc++/89416 * include/bits/alloc_traits.h (__is_alloc_insertable_impl): Replace class template with class. Replace move and copy member types with member alias templates, so they are only instantiated when needed. (__is_copy_insertable, __is_move_insertable): Adjust base class. * testsuite/23_containers/vector/modifiers/push_back/89130.cc: Enable test for C++11/14/17 as well. * testsuite/23_containers/vector/modifiers/push_back/89416.cc: New test. 2019-02-20 Jakub Jelinek PR libstdc++/89402 * src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add _GLIBCXX_PURE to the alias declaration. 2019-02-19 Jonathan Wakely * testsuite/21_strings/basic_string/literals/types.cc [_GLIBCXX_USE_CHAR8_T]: Adjust expected string type for u8 literal. * testsuite/21_strings/basic_string/literals/values.cc [_GLIBCXX_USE_CHAR8_T]: Likewise. * testsuite/22_locale/codecvt/char16_t.cc: Adjust for u8 literals potentially having different type. * testsuite/22_locale/codecvt/char32_t.cc: Likewise. * testsuite/22_locale/codecvt/codecvt_utf8/79980.cc: Cast u8 literal to char. * testsuite/22_locale/codecvt/codecvt_utf8/wchar_t/1.cc: Likewise. * testsuite/22_locale/codecvt/utf8.cc: Likewise. * testsuite/22_locale/conversions/string/2.cc: Remove u8 prefix from string literals only using basic character set. * testsuite/22_locale/conversions/string/3.cc: Likewise. Cast other u8 literals to char. * testsuite/29_atomics/headers/atomic/macros.cc [_GLIBCXX_USE_CHAR8_T]: Test ATOMIC_CHAR8_T_LOCK_FREE. Add missing #error to ATOMIC_CHAR16_T_LOCK_FREE test. * testsuite/29_atomics/headers/atomic/types_std_c++0x.cc [_GLIBCXX_USE_CHAR8_T]: Check for std::atomic_char8_t. * testsuite/experimental/string_view/literals/types.cc [_GLIBCXX_USE_CHAR8_T]: Adjust expected string_view type for u8 literal. * testsuite/experimental/string_view/literals/values.cc [_GLIBCXX_USE_CHAR8_T]: Likewise. 2019-02-19 Tom Honermann * testsuite/18_support/numeric_limits/char8_t.cc: New test cloned from char16_32_t.cc; validates numeric_limits. * testsuite/21_strings/basic_string/literals/types-char8_t.cc: New test cloned from types.cc; validates operator""s for char8_t returns u8string. * testsuite/21_strings/basic_string/literals/values-char8_t.cc: New test cloned from values.cc; validates construction and comparison of u8string values. * testsuite/21_strings/basic_string/requirements/ /explicit_instantiation/char8_t/1.cc: New test cloned from char16_t/1.cc; validates explicit instantiation of basic_string. * testsuite/21_strings/basic_string_view/literals/types-char8_t.cc: New test cloned from types.cc; validates operator""sv for char8_t returns u8string_view. * testsuite/21_strings/basic_string_view/literals/ values-char8_t.cc: New test cloned from values.cc; validates construction and comparison of u8string_view values. * testsuite/21_strings/basic_string_view/requirements/ explicit_instantiation/char8_t/1.cc: New test cloned from char16_t/1.cc; validates explicit instantiation of basic_string_view. * testsuite/21_strings/char_traits/requirements/char8_t/65049.cc: New test cloned from char16_t/65049.cc; validates that char_traits is not vulnerable to the concerns in PR65049. * testsuite/21_strings/char_traits/requirements/char8_t/ typedefs.cc: New test cloned from char16_t/typedefs.cc; validates that char_traits member typedefs are present and correct. * testsuite/21_strings/char_traits/requirements/ explicit_instantiation/char8_t/1.cc: New test cloned from char16_t/1.cc; validates explicit instantiation of char_traits. * testsuite/22_locale/codecvt/char16_t-char8_t.cc: New test cloned from char16_t.cc: validates codecvt. * testsuite/22_locale/codecvt/char32_t-char8_t.cc: New test cloned from char32_t.cc: validates codecvt. * testsuite/22_locale/codecvt/utf8-char8_t.cc: New test cloned from utf8.cc; validates codecvt and codecvt. * testsuite/27_io/filesystem/path/native/string-char8_t.cc: New test cloned from string.cc; validates filesystem::path construction from char8_t input. * testsuite/experimental/feat-char8_t.cc: New test; validates that the __cpp_lib_char8_t feature test macro is defined with the correct value. * testsuite/experimental/filesystem/path/native/string-char8_t.cc: New test cloned from string.cc; validates filesystem::path construction from char8_t input. * testsuite/experimental/string_view/literals/types-char8_t.cc: New test cloned from types.cc; validates operator""sv for char8_t returns u8string_view. * testsuite/experimental/string_view/literals/values-char8_t.cc: New test cloned from values.cc; validates construction and comparison of u8string_view values. * testsuite/experimental/string_view/requirements/ explicit_instantiation/char8_t/1.cc: New test cloned from char16_t/1.cc; validates explicit instantiation of basic_string_view. * testsuite/ext/char8_t/atomic-1.cc: New test; validates that ATOMIC_CHAR8_T_LOCK_FREE is not defined if char8_t support is not enabled. 2019-02-19 Tom Honermann P0482R5 char8_t: Standard library support * config/abi/pre/gnu-versioned-namespace.ver (CXXABI_2.0): Add typeinfo symbols for char8_t. * config/abi/pre/gnu.ver: Add CXXABI_1.3.12. (GLIBCXX_3.4.26): Add symbols for specializations of numeric_limits and codecvt that involve char8_t. (CXXABI_1.3.12): Add typeinfo symbols for char8_t. * include/bits/atomic_base.h: Add atomic_char8_t. * include/bits/basic_string.h: Add std::hash and operator""s(const char8_t*, size_t). * include/bits/c++config: Define _GLIBCXX_USE_CHAR8_T and __cpp_lib_char8_t. * include/bits/char_traits.h: Add char_traits. * include/bits/codecvt.h: Add codecvt, codecvt, codecvt_byname, and codecvt_byname. * include/bits/cpp_type_traits.h: Add __is_integer to recognize char8_t as an integral type. * include/bits/fs_path.h: (path::__is_encoded_char): Recognize char8_t. (path::u8string): Return std::u8string when char8_t support is enabled. (path::generic_u8string): Likewise. (path::_S_convert): Handle conversion from char8_t input. (path::_S_str_convert): Likewise. * include/bits/functional_hash.h: Add hash. * include/bits/locale_conv.h (__str_codecvt_out): Add overloads for char8_t. * include/bits/locale_facets.h (_GLIBCXX_NUM_UNICODE_FACETS): Bump for new char8_t specializations. * include/bits/localefwd.h: Add missing declarations of codecvt and codecvt. Add char8_t declarations codecvt and codecvt. * include/bits/postypes.h: Add u8streampos * include/bits/stringfwd.h: Add declarations of char_traits and u8string. * include/c_global/cstddef: Add __byte_operand. * include/experimental/bits/fs_path.h (path::__is_encoded_char): Recognize char8_t. (path::u8string): Return std::u8string when char8_t support is enabled. (path::generic_u8string): Likewise. (path::_S_convert): Handle conversion from char8_t input. (path::_S_str_convert): Likewise. * include/experimental/string: Add u8string. * include/experimental/string_view: Add u8string_view, hash, and operator""sv(const char8_t*, size_t). * include/std/atomic: Add atomic and atomic_char8_t. * include/std/charconv (__is_int_to_chars_type): Recognize char8_t as a character type. * include/std/limits: Add numeric_limits. * include/std/string_view: Add u8string_view, hash, and operator""sv(const char8_t*, size_t). * include/std/type_traits: Add __is_integral_helper, __make_unsigned, and __make_signed. * libsupc++/atomic_lockfree_defines.h: Define ATOMIC_CHAR8_T_LOCK_FREE. * src/c++11/Makefile.am: Compile with -fchar8_t when compiling codecvt.cc and limits.cc so that char8_t specializations of numeric_limits and codecvt and emitted. * src/c++11/Makefile.in: Likewise. * src/c++11/codecvt.cc: Define members of codecvt, codecvt, codecvt_byname, and codecvt_byname. * src/c++11/limits.cc: Define members of numeric_limits. * src/c++98/Makefile.am: Compile with -fchar8_t when compiling locale_init.cc and localename.cc. * src/c++98/Makefile.in: Likewise. * src/c++98/locale_init.cc: Add initialization for the codecvt and codecvt facets. * src/c++98/localename.cc: Likewise. * testsuite/util/testsuite_abi.cc: Validate ABI bump. 2019-02-18 Wilco Dijkstra * 27_io/filesystem/operations/all.cc: Add dg-require-filesystem-ts. * 27_io/filesystem/operations/resize_file.cc: Likewise. * 27_io/filesystem/path/generation/normal2.cc: Likewise. 2019-02-14 Jonathan Wakely * doc/xml/manual/status_cxx2020.xml: Update P0887R1 status. * doc/html/*: Regenerate. * doc/xml/manual/status_cxx2017.xml: Add P0063R3 to status table. * doc/html/*: Regenerate. * doc/xml/manual/intro.xml: Document LWG 2586 status. * include/bits/uses_allocator.h (__uses_alloc): Use const lvalue allocator type in is_constructible checks. * testsuite/20_util/scoped_allocator/69293_neg.cc: Adjust dg-error. * testsuite/20_util/scoped_allocator/dr2586.cc: New test. * testsuite/20_util/tuple/cons/allocators.cc: Add test using problematic type from LWG 2586 discussion. * testsuite/20_util/uses_allocator/69293_neg.cc: Adjust dg-error. * testsuite/20_util/uses_allocator/cons_neg.cc: Likewise. * configure.ac: Check for C11 timespec_get function. * crossconfig.m4 (freebsd, linux, gnu, cygwin, solaris, netbsd) (openbsd): Likewise * config.h.in: Regenerate. * configure: Regenerate. * include/c_global/ctime (timespec, timespec_get): Add to namespace std for C++17 and up. * doc/xml/manual/intro.xml: Document LWG 2537 status. * include/bits/stl_queue.h (priority_queue(const Compare&, const Container&, const Alloc&)) (priority_queue(const Compare&, Container&&, const Alloc&)): Call make_heap. * testsuite/23_containers/priority_queue/dr2537.cc: New test. * doc/xml/manual/intro.xml: Document LWG 2566 status. * include/bits/stl_queue.h (queue, priority_queue): Add static assertions to enforce LWG 2566 requirement on value_type. * include/bits/stl_stack.h (stack): Likewise. PR middle-end/89303 * testsuite/20_util/enable_shared_from_this/89303.cc: New test. * doc/xml/manual/intro.xml: Document LWG 2735 status. * include/bits/std_abs.h: Add comment about LWG 2735. * testsuite/26_numerics/headers/cstdlib/dr2735.cc: New test. 2019-02-13 Jonathan Wakely PR libstdc++/89345 * include/std/version [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Only define for C++2a and later. * libsupc++/new [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Likewise. (destroying_delete_t, destroying_delete): Likewise, but define even when __cpp_impl_destroying_delete is not defined. * testsuite/18_support/destroying_delete.cc: New test. 2019-02-11 Jonathan Wakely PR libstdc++/89023 * testsuite/17_intro/headers/c++2011/parallel_mode.cc: New test. * testsuite/17_intro/headers/c++2014/parallel_mode.cc: New test. * testsuite/17_intro/headers/c++2017/parallel_mode.cc: New test. * testsuite/28_regex/headers/regex/parallel_mode.cc: Remove. 2019-02-09 Jonathan Wakely PR libstdc++/71044 * include/bits/fs_path.h (path::has_root_name) (path::has_root_directory, path::has_root_path) (path::has_relative_path, path::has_parent_path) (path::has_filename, path::has_stem, path::has_extension) (path::is_absolute, path::is_relative, path::_M_find_extension): Add noexcept. * src/c++17/fs_path.cc (path::has_root_name) (path::has_root_directory, path::has_root_path) (path::has_relative_path, path::has_parent_path) (path::has_filename, path::_M_find_extension): Add noexcept. 2019-02-06 Jonathan Wakely PR libstdc++/89102 (partial) * include/std/type_traits (common_type<>): Define. (common_type): Derive from common_type. * testsuite/20_util/common_type/requirements/explicit_instantiation.cc: Test zero-length template argument list. * testsuite/20_util/common_type/requirements/sfinae_friendly_1.cc: Test additional single argument cases. * testsuite/20_util/common_type/requirements/sfinae_friendly_2.cc: Adjust expected error. 2019-02-05 Jonathan Wakely PR libstdc++/89128 * include/bits/stl_queue.h (queue, priority_queue): Add deduction guides. * include/bits/stl_stack.h (stack): Likewise. * testsuite/23_containers/priority_queue/deduction.cc: New test. * testsuite/23_containers/queue/deduction.cc: New test. * testsuite/23_containers/stack/deduction.cc: New test. PR libstdc++/89194 * include/std/type_traits (__is_convertible_helper) (__is_convertible_helper<_From, _To, false>): Revert changes to support is_nothrow_convertible. (__is_nt_convertible_helper): New helper. (is_nothrow_convertible): Use __is_nt_convertible_helper. * testsuite/23_containers/vector/modifiers/push_back/49836.cc: Restore use of CopyConsOnlyType, but also test DelAnyAssign for completeness. PR libstdc++/89130 * include/bits/alloc_traits.h (__is_copy_insertable_impl): Rename to __is_alloc_insertable_impl. Replace single type member with two members, one for each of copy and move insertable. (__is_move_insertable): New trait for internal use. * include/bits/stl_vector.h (vector::_S_nothrow_relocate(true_type)) (vector::_S_nothrow_relocate(true_type)): New functions to conditionally check if __relocate_a can throw. (vector::_S_use_relocate()): Dispatch to _S_nothrow_relocate based on __is_move_insertable. (vector::_S_do_relocate): New overloaded functions to conditionally call __relocate_a. (vector::_S_relocate): New function that dispatches to _S_do_relocate based on _S_use_relocate. * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert) (vector::_M_default_append): Call _S_relocate instead of __relocate_a. * testsuite/23_containers/vector/modifiers/push_back/89130.cc: New. PR libstdc++/89090 * include/bits/stl_uninitialized.h (__relocate_a_1): Make unused parameter unnamed. Add message to static assertion. * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert) (vector::_M_default_append): Use _GLIBCXX17_CONSTEXPR for if constexpr in C++11 code. 2019-02-05 Marc Glisse PR libstdc++/87106 * include/bits/stl_uninitialized.h (__is_trivially_relocatable): Rename... (__is_bitwise_relocatable): ... to this. (__relocate_a_1): Adapt. * include/bits/stl_deque.h (__is_trivially_relocatable): Rename... (__is_bitwise_relocatable): ... to this. 2019-01-30 Jonathan Wakely PR libstdc++/89117 * src/c++17/fs_path.cc (path::replace_extension): Erase extension from final component as well as from _M_pathname. Append the dot using operator+= instead of only to _M_pathname. (path::_M_find_extension): Reformat slightly. * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: Add more test cases. 2019-01-30 Ulrich Drepper * doc/xml/manual/status_cxx2020.xml: Update P0600 entry. 2019-01-29 Jonathan Wakely * testsuite/26_numerics/headers/complex/synopsis.cc: Remove incorrect constexpr specifiers from arg and proj. * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add missing exports for __shared_ptr instantiations used by gcc4-compatible ABI. * include/experimental/forward_list (experimental::erase): Qualify call to erase_if. * include/experimental/list (experimental::erase): Likewise. * include/std/forward_list (std::erase): Likewise. * include/std/list (std::erase): Likewise. * testsuite/20_util/reference_wrapper/result_type.cc: Disable for C++2a. * testsuite/20_util/reference_wrapper/typedefs-2.cc: Likewise. * testsuite/20_util/reference_wrapper/typedefs-3.cc: Likewise. * testsuite/20_util/reference_wrapper/typedefs.cc: Likewise. * testsuite/30_threads/async/54297.cc: Suppress nodiscard warning. * testsuite/ext/array_allocator/26875.cc: Likewise. * testsuite/ext/pool_allocator/allocate_chunk.cc: Likewise. * testsuite/util/replacement_memory_operators.h: Likewise. * testsuite/util/testsuite_allocator.h: Likewise. * include/std/memory_resource (__pool_resource::_M_unpooled): Use normal mode vector, even for debug mode. * include/std/vector [_GLIBCXX_DEBUG] (_GLIBCXX_STD_C::pmr::vector): Define alias template for normal mode vector. 2019-01-28 Jonathan Wakely PR libstdc++/68737 * config/locale/generic/c_locale.h (__convert_from_v) [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF. * config/os/hpux/os_defines.h: Define _GLIBCXX_HAVE_BROKEN_VSNPRINTF. * include/bits/locale_facets.tcc (num_put::_M_insert_float) [_GLIBCXX_USE_C99_STDIO]: Also check _GLIBCXX_HAVE_BROKEN_VSNPRINTF. 2019-01-24 Jonathan Wakely PR libstdc++/88840 * include/bits/stl_vector.h (vector::__use_relocate): Replace static data member with static member function _S_use_relocate(). * include/bits/vector.tcc (vector::reserve, vector::_M_realloc_insert) (vector::_M_default_append): Use _S_use_relocate() instead of __use_relocate. * testsuite/27_io/filesystem/path/compare/strings.cc: Only compare sign of results. 2019-01-22 Jonathan Wakely PR libstdc++/88740 * testsuite/util/testsuite_hooks.h [stderr] (VERIFY): Use fprintf to write to stderr instead of using printf. 2019-01-21 Jakub Jelinek PR libstdc++/86590 * include/bits/char_traits.h (__constant_string_p, __constant_char_array_p): Use __builtin_is_constant_evaluated if available. 2019-01-20 Ulrich Drepper Implement C++20 P0600r1. * include/backward/hash_map: Add nodiscard attribute to empty. * include/backward/hash_set: Likewise. * backward/hashtable.h: Likewise. * include/bits/basic_string.h: Likewise. * include/bits/forward_list.h: Likewise. * include/bits/hashtable.h: Likewise. * include/bits/regex.h: Likewise. * include/bits/stl_deque.h: Likewise. * include/bits/stl_list.h: Likewise. * include/bits/stl_map.h: Likewise. * include/bits/stl_multimap.h: Likewise. * include/bits/stl_multiset.h: Likewise. * include/bits/stl_queue.h: Likewise. * include/bits/stl_set.h: Likewise. * include/bits/stl_stack.h: Likewise. * include/bits/stl_tree.h: Likewise. * include/bits/stl_vector.h: Likewise. * include/bits/unordered_map.h: Likewise. * include/bits/unordered_set.h: Likewise. * include/debug/array: Likewise. * include/experimental/any: Likewise. * include/experimental/bits/fs_path.h: Likewise. * include/experimental/internet: Likewise. * include/experimental/string_view: Likewise. * include/ext/pb_ds/detail/bin_search_tree_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/binary_heap_/binary_heap_.hpp: Likewise. * include/ext/pb_ds/detail/binary_heap_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/cc_hash_table_map_/cc_ht_map_.hpp: Likewise. * include/ext/pb_ds/detail/cc_hash_table_map_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/cc_hash_table_map_/size_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/gp_hash_table_map_/gp_ht_map_.hpp: Likewise. * include/ext/pb_ds/detail/gp_hash_table_map_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/left_child_next_sibling_heap_/ info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/left_child_next_sibling_heap_/ left_child_next_sibling_heap_.hpp: Likewise. * include/ext/pb_ds/detail/list_update_map_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp: Likewise. * include/ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/ov_tree_map_/ov_tree_map_.hp: Likewise. * include/ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp: Likewise. * include/ext/pb_ds/detail/pat_trie_/pat_trie_.hpp: Likewise. * include/ext/pb_ds/detail/rc_binomial_heap_/rc.hpp: Likewise. * include/ext/pb_ds/detail/tree_trace_base.hpp: Likewise. * include/ext/pb_ds/trie_policy.hpp: Likewise. * include/ext/rope: Likewise. * include/ext/slist: Likewise. * include/ext/vstring.h: Likewise. * include/profile/array: Likewise. * include/std/array: Likewise. * include/tr1/array: Likewise. * include/tr1/hashtable.h: Likewise. * include/tr1/regex: Likewise. * include/tr2/dynamic_bitset: Likewise. * include/bits/alloc_traits.h: Add nodiscard attribute to allocate. * include/experimental/memory_resource: Likewise. * include/ext/alloc_traits.h: Likewise. * include/ext/array_allocator.h: Likewise. * include/ext/bitmap_allocator.h: Likewise. * include/ext/debug_allocator.h: Likewise. * include/ext/extptr_allocator.h: Likewise. * include/ext/mt_allocator.h: Likewise. * include/ext/new_allocator.h: Likewise. * include/ext/pool_allocator.h: Likewise. * include/ext/throw_allocator.h: Likewise. * include/std/scoped_allocator: Likewise. * libsupc++/eh_alloc.cc: Likewise. * include/std/future: Add nodiscard attribute to async. * libsupc++/new: Add nodiscard attribute to new. 2019-01-18 Jonathan Wakely PR libstdc++/87514 PR libstdc++/87520 PR libstdc++/88782 * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export new symbol. * include/bits/shared_ptr.h (shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)) (allocate_shared): Change to use new tag type. * include/bits/shared_ptr_base.h (_Sp_make_shared_tag::_S_eq): Declare new member function. (_Sp_alloc_shared_tag): Define new type. (_Sp_counted_ptr_inplace): Declare __shared_count<_Lp> as a friend. (_Sp_counted_ptr_inplace::_M_get_deleter) [!__cpp_rtti]: Use _Sp_make_shared_tag::_S_eq to check type_info. (__shared_count(Ptr, Deleter),__shared_count(Ptr, Deleter, Alloc)): Constrain to prevent being called with _Sp_alloc_shared_tag. (__shared_count(_Sp_make_shared_tag, const _Alloc&, Args&&...)): Replace constructor with ... (__shared_count(Tp*&, _Sp_alloc_shared_tag<_Alloc>, Args&&...)): Use reference parameter so address of the new object can be returned to the caller. Obtain the allocator from the tag type. (__shared_ptr(_Sp_make_shared_tag, const Alloc&, Args&&...)): Replace constructor with ... (__shared_ptr(_Sp_alloc_shared_tag, Args&&...)): Pass _M_ptr to the __shared_count constructor. (__allocate_shared): Change to use new tag type. * src/c++11/shared_ptr.cc (_Sp_make_shared_tag::_S_eq): Define. 2019-01-17 Jonathan Wakely * src/c++17/fs_ops.cc (equivalent(const path&, const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use GetFileInformationByHandle to compare files instead of relying on incomplete info returned by stat. PR libstdc++/88884 * src/c++17/fs_ops.cc (absolute(const path&, error_code&)): Do nothing if the path is already absolute. [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize root-directory. [!_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Pass error_code to current_path. PR libstdc++/88881 * src/c++17/fs_ops.cc (canonical(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Normalize path, to match behaviour of filesystem::exists. (create_directories(const path&, error_code&)): Add assertions. (status(const path&, error_code&)) [_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Add workaround for bug in _wstat for paths with trailing slash. * testsuite/27_io/filesystem/operations/create_directories.cc: Adjust for expected behaviour on mingw. * testsuite/experimental/filesystem/operations/create_directories.cc: Likewise. * testsuite/27_io/filesystem/operations/temp_directory_path.cc: Use "TMP" instead of "TMPDIR" and clean environment before each test. Do not test permissions on mingw targets. 2019-01-16 Jonathan Wakely * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Add exports for fstream constructors and open members taking wide strings. Fix patterns for filesystem::path members to match wstring_view parameters. Add exports for shared_ptr members used by directory iterators. * src/c++17/fs_ops.cc (remove(const path&, error_code&)): Clear the error code parameter if the file doesn't exist. * src/filesystem/ops.cc (remove(const path&, error_code&)): Likewise. * testsuite/27_io/filesystem/operations/canonical.cc: Fix expected values for mingw targets, where "/" is not an absolute path. Do not test symlinks on mingw targets. * testsuite/experimental/filesystem/operations/canonical.cc: Likewise. * testsuite/27_io/filesystem/operations/copy.cc: Do not test symlinks on mingw targets. * testsuite/experimental/filesystem/operations/copy.cc: Likewise. * testsuite/27_io/filesystem/operations/create_directories.cc: Check that each component of the path is created. * testsuite/experimental/filesystem/operations/create_directories.cc: Likewise. * testsuite/27_io/filesystem/operations/exists.cc: Do not test permissions on mingw targets. * testsuite/experimental/filesystem/operations/exists.cc: Likewise. * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. * testsuite/experimental/filesystem/operations/is_empty.cc: Likewise. * testsuite/27_io/filesystem/operations/permissions.cc: XFAIL for mingw targets. * testsuite/experimental/filesystem/operations/permissions.cc: Likewise. * testsuite/27_io/filesystem/operations/remove.cc: Do not test symlinks or permissions on mingw targets. * testsuite/experimental/filesystem/operations/remove.cc: Likewise. * testsuite/27_io/filesystem/operations/remove_all.cc: Do not test symlinks on mingw targets. * testsuite/experimental/filesystem/operations/remove_all.cc: Likewise. * testsuite/27_io/filesystem/operations/status.cc: Do not test permissions on mingw targets. * testsuite/27_io/filesystem/operations/weakly_canonical.cc: Do not test symlinks on mingw targets. * testsuite/experimental/filesystem/operations/space.cc: Fix test for mingw targets. 2019-02-14 Ulrich Drepper PR libstdc++/88738 Warn about unused comparisons of shared_ptr/unique_ptr * include/bits/c++config [_GLIBCXX_NODISCARD]: Define. * include/bits/shared_ptr.h: Use it for operator ==, !=, <, <=, >, >= for shared_ptr. * include/bits/unique_ptr.h: Likewise for unique_ptr. 2019-01-15 Jonathan Wakely * include/bits/shared_ptr_base.h (__cpp_lib_shared_ptr_arrays): Define as 201611L, because P0497R0 changes are supported. * include/std/version (__cpp_lib_shared_ptr_arrays): Likewise. * include/bits/erase_if.h [__cplusplus > 201703L] (__cpp_lib_erase_if): Only define for C++2a. * include/std/iterator [__cplusplus >= 201402L && !_GLIBCXX_DEBUG] (__cpp_lib_null_iterators): Define. * include/std/version [__cplusplus >= 201402L && !_GLIBCXX_DEBUG] (__cpp_lib_null_iterators): Define. [__cpp_impl_destroying_delete] (__cpp_lib_destroying_delete): Define. * doc/xml/manual/status_cxx2017.xml: Document P0032R3 and P0307R2 status. * include/bits/stl_uninitialized.h (__cpp_lib_raw_memory_algorithms): Define. * include/std/any (__cpp_lib_any): Define as 201606L, because P0032R3 changes are supported. * include/std/optional (__cpp_lib_optional): Likewise. * include/std/variant (__cpp_lib_variant): Likewise. * include/std/version [!__STRICT_ANSI__] (__cpp_lib_uncaught_exceptions): Define as long integer. [__cplusplus >= 201703L] (__cpp_lib_any) (__cpp_lib_raw_memory_algorithms, __cpp_lib_uncaught_exceptions) (__cpp_lib_variant): Define for C++17. [__cplusplus >= 201703L] (__cpp_lib_optional): Update value and define as long integer. * libsupc++/exception (__cpp_lib_uncaught_exceptions): Define as long integer. * doc/xml/manual/status_cxx2020.xml: Update P1123R0 status. 2019-01-12 Jonathan Wakely PR libstdc++/88811 PR libstdc++/83306 * src/filesystem/path.cc: Fix typo. If first path is empty, show [] before second path. * testsuite/experimental/filesystem/filesystem_error/cons.cc: New test. 2019-01-11 Jonathan Wakely * doc/xml/manual/intro.xml: Include new section. * doc/xml/manual/status_cxx2017.xml: Document more implementation-defined properties of the library. * doc/xml/manual/status_cxx2020.xml: Document C++2a status. * doc/html/*: Regenerate. * include/bits/refwrap.h [__cplusplus > 201703L] (_Refwrap_base_arg1, _Refwrap_base_arg2, _Reference_wrapper_base) (_Reference_wrapper_base_memfun): Do not define for C++2a. (reference_wrapper): Do not derive from _Reference_wrapper_base_memfun for C++2a. (reference_wrapper::operator()): Add static assertion. * testsuite/20_util/reference_wrapper/incomplete.cc: New test. * include/std/chrono (duration_values::zero(), duration_values::min()) (duration_values::max()): Add noexcept. (duration::zero(), duration::min(), duration::max()): Likewise. (time_point::zero(), time_point::min(), time_point::max()): Likewise. * testsuite/20_util/duration/requirements/noexcept.cc: New test. * testsuite/20_util/time_point/requirements/noexcept.cc: New test. * include/std/version (__cpp_lib_erase_if): Move to C++20 group. 2019-01-11 Jakub Jelinek * include/std/type_traits (__cpp_lib_is_constant_evaluated): Define. * include/std/version (__cpp_lib_is_constant_evaluated): Define. 2019-01-11 Jonathan Wakely PR libstdc++/88802 * include/bits/functional_hash.h (hash): Define specialization for C++17 (P0513R0, LWG 2817). * testsuite/20_util/hash/nullptr.cc: New test. PR libstdc++/88125 * config/abi/pre/gnu.ver (GLIBCXX_3.4.6): Remove unused duplicate pattern for std::basic_stringbuf::str(). * config/abi/pre/gnu.ver (GLIBCXX_3.4): Correct recent changes to basic_ostream::operator<< patterns. 2019-01-10 Jonathan Wakely * testsuite/27_io/filesystem/operations/last_write_time.cc: Fix test failures on targets with 32-bit time_t. * include/bits/erase_if.h: Define __cpp_lib_erase_if. * include/std/deque: Likewise. * include/std/forward_list: Likewise. * include/std/list: Likewise. * include/std/string: Likewise. * include/std/vector: Likewise. * include/std/version: Likewise. * testsuite/21_strings/basic_string/erasure.cc: Test macro. * testsuite/23_containers/deque/erasure.cc: Likewise. * testsuite/23_containers/forward_list/erasure.cc: Likewise. * testsuite/23_containers/list/erasure.cc: Likewise. * testsuite/23_containers/map/erasure.cc: Likewise. * testsuite/23_containers/set/erasure.cc: Likewise. * testsuite/23_containers/unordered_map/erasure.cc: Likewise. * testsuite/23_containers/unordered_set/erasure.cc: Likewise. * testsuite/23_containers/vector/erasure.cc: Likewise. * include/experimental/internet [AI_NUMERICSERV] (resolver_base::numeric_service): Define conditionally. * testsuite/experimental/net/internet/resolver/base.cc: Test it conditionally. * testsuite/experimental/net/internet/resolver/ops/lookup.cc: Likewise. 2019-01-10 Ville Voutilainen Jonathan Wakely Implement LWG 2221 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten patterns. (GLIBCXX_3.4.26): Add new exports. * include/Makefile.am: Add ostream-inst.cc. Move string-inst.cc to correct list of sources. * include/Makefile.in: Regenerate. * include/std/ostream (operator<<(nullptr_t)): New member function. * src/c++17/ostream-inst.cc: New file. * testsuite/27_io/basic_ostream/inserters_other/char/lwg2221.cc: New test. 2019-01-10 Jonathan Wakely * testsuite/util/testsuite_fs.h (nonexistent_path): Include name of the source file containing the caller. * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Remove directories created by test. * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: Likewise. * testsuite/experimental/filesystem/iterators/directory_iterator.cc: Likewise. * testsuite/experimental/filesystem/iterators/ recursive_directory_iterator.cc: Likewise. 2019-01-10 Jakub Jelinek PR tree-optimization/88775 * include/bits/stl_function.h (greater<_Tp*>::operator(), less<_Tp*>::operator(), greater_equal<_Tp*>::operator(), less_equal<_Tp*>::operator()): Use __builtin_is_constant_evaluated instead of __builtin_constant_p if available. Don't bother with the pointer comparison in C++11 and earlier. 2019-01-09 Sandra Loosemore PR other/16615 * include/ext/bitmap_allocator.h: Mechanically replace "can not" with "cannot". 2019-01-09 Jonathan Wakely * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix expected output for filesystem::path. Give variables more distinctive names. * include/std/optional (_Optional_payload_base::_M_copy_assign): New member function to perform non-trivial assignment. (_Optional_payload_base::_M_move_assign): Likewise. (_Optional_payload::operator=) (_Optional_payload::operator=) (_Optional_payload::operator=): Call _M_copy_assign and/or _M_move_assign to do non-trivial assignments. PR libstdc++/88204 * testsuite/26_numerics/complex/operators/more_constexpr.cc: Do not test std::complex if long double format is IBM128. * testsuite/26_numerics/complex/requirements/more_constexpr.cc: Likewise. 2019-01-08 Jonathan Wakely * testsuite/libstdc++-prettyprinters/compat.cc: Test printer support for old std::unique_ptr layout. * testsuite/libstdc++-prettyprinters/cxx17.cc: Fix std::variant test to become valueless. Add filesystem::path tests. PR libstdc++/87855 * include/std/optional (_Optional_payload_base): New class template for common code hoisted from _Optional_payload specializations. Use a template for the union, to allow a partial specialization for types with non-trivial destructors. Add constructors for in-place initialization to the union. (_Optional_payload(bool, const _Optional_payload&)): Use _M_construct to perform non-trivial copy construction, instead of relying on non-standard copy elision in a delegating constructor. (_Optional_payload(bool, _Optional_payload&&)): Likewise for non-trivial move construction. (_Optional_payload): Derive from _Optional_payload_base and use it for everything except the non-trivial assignment operators, which are defined as needed. (_Optional_payload): Derive from the specialization _Optional_payload and add a destructor. (_Optional_base_impl::_M_destruct, _Optional_base_impl::_M_reset): Forward to corresponding members of _Optional_payload. (_Optional_base_impl::_M_is_engaged, _Optional_base_impl::_M_get): Hoist common members from _Optional_base. (_Optional_base): Make all members and base class public. (_Optional_base::_M_get, _Optional_base::_M_is_engaged): Move to _Optional_base_impl. * python/libstdcxx/v6/printers.py (StdExpOptionalPrinter): Add support for new std::optional layout. * testsuite/libstdc++-prettyprinters/compat.cc: New test. PR libstdc++/88066 * include/bits/locale_conv.h: Use <> for includes not "". * include/ext/random: Likewise. * include/ext/vstring.h: Likewise. 2019-01-08 Rainer Orth * config/abi/pre/gnu.ver (GLIBCXX_3.4): Tighten existing patterns. (GLIBCXX_3.4.21): Likewise. 2019-01-08 Jonathan Wakely PR libstdc++/88749 * src/filesystem/ops.cc (last_write_time): Fix preprocessor condition to match the one that controls whether utimbuf and utime are declared. 2019-01-07 Jonathan Wakely PR libstdc++/87787 * include/bits/char_traits.h (char_traits::move): Do not pass null pointers to memmove. * include/bits/locale_facets.h (ctype::widen(const char*, const char*, char*)): Do not pass null pointers to memcpy. (ctype::narrow(const char*, const char*, char, char*)): Likewise. (ctype::do_widen(const char*, const char*, char*)): Likewise. (ctype::do_narrow(const char*, const char*, char, char*)): Likewise. * doc/xml/manual/spine.xml: Update copyright years. * doc/xml/manual/status_cxx2017.xml: Adjust note about -lstdc++fs. * doc/xml/manual/using.xml: Remove requirement to link with -lstdc++fs for C++17 filesystem library. * doc/html/*: Regenerate. * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for truncate. * config.h.in: Regenerate. * config/abi/pre/gnu.ver: Order patterns for filesystem operations alphabetically and add missing entries for copy_symlink, hard_link_count, rename, and resize_file. * configure: Regenerate. * src/c++17/fs_ops.cc (resize_file): Remove #if so posix::truncate is used unconditionally. * src/filesystem/ops-common.h (__gnu_posix::truncate) [!_GLIBCXX_HAVE_TRUNCATE]: Provide fallback definition that only supports truncating to zero length. * testsuite/27_io/filesystem/operations/all.cc: New test. * testsuite/27_io/filesystem/operations/resize_file.cc: New test. 2019-01-06 Jonathan Wakely PR libstdc++/86756 * acinclude.m4 (GLIBCXX_CHECK_FILESYSTEM_DEPS): Check for utime and lstat and define _GLIBCXX_USE_UTIME and _GLIBCXX_USE_LSTAT. * config.h.in: Regenerate. * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export symbols for remaining std::filesystem types and functions. * configure: Regenerate. * src/c++17/Makefile.am: Add C++17 filesystem sources. * src/c++17/Makefile.in: Regenerate. * src/c++17/cow-fs_dir.cc: Move src/filesystem/cow-std-dir.cc to here, and change name of included file. * src/c++17/cow-fs_ops.cc: Move src/filesystem/cow-std-ops.cc to here, and change name of included file. * src/c++17/fs_dir.cc: Move src/filesystem/std-dir.cc to here. Change path to dir-common.h. * src/c++17/fs_ops.cc: Move src/filesystem/std-ops.cc to here. Change path to ops-common.h. Disable -Wunused-parameter warnings. (internal_file_clock): Define unconditionally. [!_GLIBCXX_HAVE_SYS_STAT_H] (internal_file_clock::from_stat): Do not define. (do_copy_file, do_space): Move definitions to ops.common.h. (copy, file_size, hard_link_count, last_write_time, space): Only perform operation when _GLIBCXX_HAVE_SYS_STAT_H is defined, otherwise report an error. (last_write_time, read_symlink): Remove unused attributes from parameters. * src/filesystem/Makefile.am: Remove C++17 filesystem sources. * src/filesystem/Makefile.in: Regenerate. * src/filesystem/cow-std-dir.cc: Move to src/c++17/cow-fs_dir.cc. * src/filesystem/cow-std-ops.cc: Move to src/c++17/cow-fs_ops.cc. * src/filesystem/std-dir.cc: Move to src/c++17/fs_dir.cc. * src/filesystem/std-ops.cc: Move to src/c++17/fs_ops.cc. * src/filesystem/dir-common.h [!_GLIBCXX_HAVE_DIRENT_H]: Define dummy types and functions instead of using #error. * src/filesystem/dir.cc [!_GLIBCXX_HAVE_DIRENT_H]: Use #error. * src/filesystem/ops-common.h [!_GLIBCXX_USE_LSTAT] (lstat): Define in terms of stat. [!_GLIBCXX_HAVE_UNISTD_H]: Define dummy types and functions. (do_copy_file, do_space): Move definitions here from std-ops.cc. * src/filesystem/ops.cc: Adjust calls to do_copy_file and do_space to account for new namespace. * testsuite/27_io/filesystem/directory_entry/86597.cc: Remove -lstdc++fs from dg-options. * testsuite/27_io/filesystem/directory_entry/lwg3171.cc: Likewise. * testsuite/27_io/filesystem/file_status/1.cc: Likewise. * testsuite/27_io/filesystem/filesystem_error/cons.cc: Likewise. * testsuite/27_io/filesystem/filesystem_error/copy.cc: Likewise. * testsuite/27_io/filesystem/iterators/directory_iterator.cc: Likewise. * testsuite/27_io/filesystem/iterators/pop.cc: Likewise. * testsuite/27_io/filesystem/iterators/recursive_directory_iterator.cc: Likewise. * testsuite/27_io/filesystem/operations/absolute.cc: Likewise. * testsuite/27_io/filesystem/operations/canonical.cc: Likewise. * testsuite/27_io/filesystem/operations/copy.cc: Likewise. * testsuite/27_io/filesystem/operations/copy_file.cc: Likewise. * testsuite/27_io/filesystem/operations/create_directories.cc: Likewise. * testsuite/27_io/filesystem/operations/create_directory.cc: Likewise. * testsuite/27_io/filesystem/operations/create_symlink.cc: Likewise. * testsuite/27_io/filesystem/operations/current_path.cc: Likewise. * testsuite/27_io/filesystem/operations/equivalent.cc: Likewise. * testsuite/27_io/filesystem/operations/exists.cc: Likewise. * testsuite/27_io/filesystem/operations/file_size.cc: Likewise. * testsuite/27_io/filesystem/operations/is_empty.cc: Likewise. * testsuite/27_io/filesystem/operations/last_write_time.cc: Likewise. * testsuite/27_io/filesystem/operations/permissions.cc: Likewise. * testsuite/27_io/filesystem/operations/proximate.cc: Likewise. * testsuite/27_io/filesystem/operations/read_symlink.cc: Likewise. * testsuite/27_io/filesystem/operations/relative.cc: Likewise. * testsuite/27_io/filesystem/operations/remove.cc: Likewise. * testsuite/27_io/filesystem/operations/remove_all.cc: Likewise. * testsuite/27_io/filesystem/operations/space.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/27_io/filesystem/operations/weakly_canonical.cc: Likewise. PR libstdc++/86756 * config/abi/pre/gnu.ver (GLIBCXX_3.4): Make various patterns for typeinfo and vtables less greedy. (GLIBCXX_3.4.26): Export symbols for std::filesystem::path. * src/c++17/Makefile.am: Add fs_path.cc and cow-fs_path.cc. * src/c++17/Makefile.in: Regenerate. * src/c++17/cow-fs_path.cc: Move src/filesystem/cow-std-path.cc to here, and change name of included file. * src/c++17/fs_path.cc: Move src/filesystem/std-path.cc to here. * src/filesystem/Makefile.am: Remove std-path.cc and cow-std-path.cc from sources. * src/filesystem/Makefile.in: Regenerate. * src/filesystem/cow-std-path.cc: Move to src/c++17/cow-fs_path.cc. * src/filesystem/std-path.cc: Move to src/c++17/fs_path.cc. * testsuite/27_io/filesystem/path/append/path.cc: Remove -lstdc++fs from dg-options and remove dg-require-filesystem-ts. * testsuite/27_io/filesystem/path/append/source.cc: Likewise. * testsuite/27_io/filesystem/path/assign/assign.cc: Likewise. * testsuite/27_io/filesystem/path/assign/copy.cc: Likewise. * testsuite/27_io/filesystem/path/compare/compare.cc: Likewise. * testsuite/27_io/filesystem/path/compare/lwg2936.cc: Likewise. * testsuite/27_io/filesystem/path/compare/path.cc: Likewise. * testsuite/27_io/filesystem/path/compare/strings.cc: Likewise. * testsuite/27_io/filesystem/path/concat/path.cc: Likewise. * testsuite/27_io/filesystem/path/concat/strings.cc: Likewise. * testsuite/27_io/filesystem/path/construct/80762.cc: Likewise. * testsuite/27_io/filesystem/path/construct/copy.cc: Likewise. * testsuite/27_io/filesystem/path/construct/default.cc: Likewise. * testsuite/27_io/filesystem/path/construct/format.cc: Likewise. * testsuite/27_io/filesystem/path/construct/locale.cc: Likewise. * testsuite/27_io/filesystem/path/construct/range.cc: Likewise. * testsuite/27_io/filesystem/path/construct/string_view.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/extension.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/filename.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/parent_path.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/relative_path.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/root_directory.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/root_name.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/root_path.cc: Likewise. * testsuite/27_io/filesystem/path/decompose/stem.cc: Likewise. * testsuite/27_io/filesystem/path/generation/normal.cc: Likewise. * testsuite/27_io/filesystem/path/generation/normal2.cc: Likewise. * testsuite/27_io/filesystem/path/generation/proximate.cc: Likewise. * testsuite/27_io/filesystem/path/generation/relative.cc: Likewise. * testsuite/27_io/filesystem/path/generic/generic_string.cc: Likewise. * testsuite/27_io/filesystem/path/itr/components.cc: Likewise. * testsuite/27_io/filesystem/path/itr/traversal.cc: Likewise. * testsuite/27_io/filesystem/path/modifiers/clear.cc: Likewise. * testsuite/27_io/filesystem/path/modifiers/make_preferred.cc: Likewise. * testsuite/27_io/filesystem/path/modifiers/remove_filename.cc: Likewise. * testsuite/27_io/filesystem/path/modifiers/replace_extension.cc: Likewise. * testsuite/27_io/filesystem/path/modifiers/replace_filename.cc: Likewise. * testsuite/27_io/filesystem/path/modifiers/swap.cc: Likewise. * testsuite/27_io/filesystem/path/native/string.cc: Likewise. * testsuite/27_io/filesystem/path/nonmember/append.cc: Likewise. * testsuite/27_io/filesystem/path/nonmember/hash_value.cc: Likewise. * testsuite/27_io/filesystem/path/query/empty.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_extension.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_filename.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_parent_path.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_relative_path.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_root_directory.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_root_name.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_root_path.cc: Likewise. * testsuite/27_io/filesystem/path/query/has_stem.cc: Likewise. * testsuite/27_io/filesystem/path/query/is_absolute.cc: Likewise. * testsuite/27_io/filesystem/path/query/is_relative.cc: Likewise. PR libstdc++/87431 * include/std/variant (_Variant_storage::_M_valid): Check is_trivially_copyable instead of is_scalar. (variant::emplace(Args&&...)): If construction of the new contained value can throw and its type is trivially copyable then construct into a temporary variant and move from it, to provide the strong exception safety guarantee. (variant::emplace(initializer_list, Args&&...)): Likewise. * testsuite/20_util/variant/87431.cc: New test. * testsuite/20_util/variant/run.cc: Adjust test so that throwing conversion causes valueless state. PR libstdc++/88607 * testsuite/17_intro/headers/c++1998/charset.cc: New test. * testsuite/17_intro/headers/c++2011/charset.cc: New test. * testsuite/17_intro/headers/c++2014/charset.cc: New test. * testsuite/17_intro/headers/c++2017/charset.cc: New test. * testsuite/17_intro/headers/c++2020/charset.cc: New test. 2019-01-05 Jonathan Wakely * include/bits/fs_fwd.h (__file_clock): Define new clock. (file_time_type): Redefine in terms of __file_clock. * src/filesystem/ops-common.h (file_time): Add FIXME comment about overflow. * src/filesystem/std-ops.cc (is_set(perm_options, perm_options)): Give internal linkage. (internal_file_lock): New helper type for accessing __file_clock. (do_copy_file): Use internal_file_lock to convert system time to file_time_type. (last_write_time(const path&, error_code&)): Likewise. (last_write_time(const path&, file_time_type, error_code&)): Likewise. 2019-01-04 Jonathan Wakely * config/abi/pre/gnu.ver (GLIBCXX_3.4.21): Make patterns less greedy for const member functions of std::basic_string. (GLIBCXX_3.4.26): Export member functions of std::basic_string added in C++17. * include/bits/basic_string.h (basic_string(__sv_wrapper, const A&)): Make non-standard constructor private. [!_GLIBCXX_USE_CXX11_ABI] (basic_string(__sv_wrapper, const A&)): Likewise. * include/bits/basic_string.tcc (std::string, std::wstring): Declare explicit instantiations for C++17 as well as earlier dialects. * src/c++17/Makefile.am: Add new source files. * src/c++17/Makefile.in: Regenerate. * src/c++17/cow-string-inst.cc: New file defining explicit instantiations for basic_string member functions added in C++17. * src/c++17/string-inst.cc: Likewise. * config/abi/pre/gnu.ver (GLIBCXX_3.4.26): Export allocator-extended copy/move constructors for old std::basic_string. * include/bits/basic_string.h [!_GLIBCXX_USE_CXX11_ABI] (basic_string::reference, basic_string::const_reference): Define as plain references for C++11 and later. (basic_string::basic_string()): Put constructor body outside preprocessor conditional groups. (basic_string::basic_string(basic_string&&)): Move _Alloc_hider instead of copying it. (basic_string::basic_string(const basic_string&, const _Alloc&)): Define. (basic_string::basic_string(basic_string&&, const _Alloc&)): Define. * include/bits/fs_path.h [!_GLIBCXX_USE_CXX11_ABI]: Remove special cases for old basic_string. * testsuite/21_strings/basic_string/cons/char/8.cc: Test allocator-extended constructors unconditionally. Add extra members to allocator type when using old string ABI. * testsuite/21_strings/basic_string/allocator/71964.cc: Enable test for old string ABI. * testsuite/21_strings/basic_string/cons/wchar_t/8.cc: Likewise. * testsuite/23_containers/list/61347.cc: Avoid spurious failure when -fno-inline added to test flags. * testsuite/21_strings/basic_string/requirements/ explicit_instantiation/debug.cc: Remove XFAIL for old ABI. * testsuite/27_io/filesystem/filesystem_error/copy.cc: Fix static assertion failures with old std::string ABI. * include/bits/fs_path.h (path::_List::erase): Replace both overloads with ... (path::pop_back(), path::_M_erase_from(const_iterator)): New member functions that will only erase elements at the end. * src/filesystem/std-path.cc (path::_List::_Impl::pop_back()): Define. (path::_List::_Impl::_M_erase_from(const_iterator)): Define. (path::_List::operator=(const _List&)): Use _M_erase_from(p) instead of erase(p, end()). (path::_List::pop_back()): Define. (path::_List::_M_erase_from(const_iterator)): Define. (path::operator/=(const path&)): Use pop_back to remove last component and _M_erase_from to remove multiple components. (path::_M_append(basic_string_view)): Likewise. (path::operator+=(const path&)): Likewise. (path::_M_concat(basic_string_view)): Likewise. (path::remove_filename()): Likewise. (path::lexically_normal()): Use _List::_Impl iterators instead of path::iterator. Use pop_back to remove components from the end. Clear trailing filename, instead of using erase(const_iterator) to remove a non-final component. * testsuite/27_io/filesystem/path/generation/normal.cc: Test additional cases. * testsuite/27_io/filesystem/path/generation/normal2.cc: New test. * src/filesystem/std-path.cc (path::operator+=(const path&)): Fix incorrect treatment of empty filename after trailing slash. * testsuite/27_io/filesystem/path/concat/path.cc: Test problem case. * testsuite/21_strings/basic_string/modifiers/assign/char/ move_assign_optim.cc: Avoid spurious failure when -fno-inline added to test flags. * testsuite/21_strings/basic_string/modifiers/assign/wchar_t/ move_assign_optim.cc: Likewise. 2019-01-03 Jonathan Wakely Jakub Jelinek PR libstdc++/88607 * include/experimental/memory: Replace UTF-8 quote characters. * include/std/future: Replace UTF-8 "em dash" characters. 2019-01-03 Jonathan Wakely PR libstdc++/88607 * include/bits/forward_list.h: Replace UTF-8 "ligature fi" character. * include/debug/forward_list: Likewise. * include/experimental/bits/shared_ptr.h: Remove UTF-8 "section sign" character. * include/experimental/chrono: Likewise. * include/experimental/functional: Likewise. * include/experimental/ratio: Likewise. * include/experimental/system_error: Likewise. * include/experimental/tuple: Likewise. * include/experimental/type_traits: Likewise. * include/parallel/workstealing.h: Replace UTF-8 "en dash" character. * include/parallel/multiseq_selection.h: Likewise. PR libstdc++/88681 * config/abi/pre/gnu.ver: Add missing exports. * testsuite/22_locale/collate_byname/88681.cc: New test. * testsuite/22_locale/time_get/get/char/88681.cc: New test. * testsuite/22_locale/time_get/get/wchar_t/88681.cc: New test. 2019-01-02 Jonathan Wakely * testsuite/23_containers/map/cons/deduction.cc: Test deduction from initializer_list and from input iterator ranges. * testsuite/23_containers/multimap/cons/deduction.cc: Likewise. * testsuite/experimental/string_view/element_access/char/empty.cc: Fix year range in copyright header. 2019-01-02 Joel Brobecker * testsuite/21_strings/basic_string_view/element_access/char/empty.cc: Fix year range in copyright header. 2019-01-01 Jakub Jelinek Update copyright years. Copyright (C) 2019 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.