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.