e4379a931d
This implements the new requirements for C++20 that std::atomic should initialize the atomic variable in its default constructor. This patch does not add the deprecated attribute to atomic_init, but that should be done at some point as it's deprecated in C++20. The paper also deprecates the ATOMIC_FLAG_INIT macro, although we can't apply the deprecated attribute to a macro. PR libstdc++/58605 * include/bits/atomic_base.h (__cpp_lib_atomic_value_initialization): Define. (__atomic_flag_base, __atomic_base, __atomic_base<_PTp*>) (__atomic_float): Add default member initializer for C++20. * include/std/atomic (atomic): Likewise. (atomic::atomic()): Remove noexcept-specifier on default constructor. * include/std/version (__cpp_lib_atomic_value_initialization): Define. * testsuite/29_atomics/atomic/cons/assign_neg.cc: Adjust dg-error line number. * testsuite/29_atomics/atomic/cons/copy_neg.cc: Likewise. * testsuite/29_atomics/atomic/cons/value_init.cc: New test. * testsuite/29_atomics/atomic_flag/cons/value_init.cc: New test. * testsuite/29_atomics/atomic_flag/requirements/trivial.cc: Adjust expected result for is_trivially_default_constructible. * testsuite/29_atomics/atomic_float/requirements.cc: Likewise. * testsuite/29_atomics/atomic_float/value_init.cc: New test. * 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/cons/value_init.cc * testsuite/29_atomics/atomic_integral/requirements/trivial.cc: Adjust expected results for is_trivially_default_constructible. * testsuite/util/testsuite_common_types.h (has_trivial_dtor): Add new test generator.
206 lines
6.5 KiB
C++
206 lines
6.5 KiB
C++
// -*- C++ -*- Libstdc++ version details header.
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// Copyright (C) 2018-2020 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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/** @file version
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* This is a Standard C++ Library file. You should @c \#include this file
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* in your programs, rather than any of the @a *.h implementation files.
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*/
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#ifndef _GLIBCXX_VERSION_INCLUDED
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#define _GLIBCXX_VERSION_INCLUDED
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#pragma GCC system_header
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#include <bits/c++config.h>
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// c++03
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#if _GLIBCXX_HOSTED
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# define __cpp_lib_incomplete_container_elements 201505
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#endif
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#if !defined(__STRICT_ANSI__)
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// gnu++03
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# define __cpp_lib_uncaught_exceptions 201411L
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#endif
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#if __cplusplus >= 201103L
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// c++11
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#define __cpp_lib_is_null_pointer 201309
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#define __cpp_lib_result_of_sfinae 201210
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#if _GLIBCXX_HOSTED
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# define __cpp_lib_allocator_is_always_equal 201411
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# define __cpp_lib_allocator_traits_is_always_equal 201411
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# define __cpp_lib_shared_ptr_arrays 201611L
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#endif
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#if !defined(__STRICT_ANSI__)
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// gnu++11
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# define __cpp_lib_is_swappable 201603
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# define __cpp_lib_void_t 201411
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# if _GLIBCXX_HOSTED
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# define __cpp_lib_enable_shared_from_this 201603
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# endif
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#endif
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// For C++11 and later we support ISO/IEC 29124 Mathematical Special Functions
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#define __STDCPP_MATH_SPEC_FUNCS__ 201003L
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#if __cplusplus >= 201402L
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// c++14
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#define __cpp_lib_integral_constant_callable 201304
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#define __cpp_lib_is_final 201402L
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#define __cpp_lib_transformation_trait_aliases 201304
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#if _GLIBCXX_HOSTED
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# define __cpp_lib_chrono_udls 201304
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# define __cpp_lib_complex_udls 201309
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# define __cpp_lib_exchange_function 201304
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# define __cpp_lib_generic_associative_lookup 201304
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# define __cpp_lib_integer_sequence 201304
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# define __cpp_lib_make_reverse_iterator 201402
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# define __cpp_lib_make_unique 201304
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# ifndef _GLIBCXX_DEBUG // PR libstdc++/70303
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# define __cpp_lib_null_iterators 201304L
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# endif
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# define __cpp_lib_quoted_string_io 201304
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# define __cpp_lib_robust_nonmodifying_seq_ops 201304
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# ifdef _GLIBCXX_HAS_GTHREADS
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# define __cpp_lib_shared_timed_mutex 201402
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# endif
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# define __cpp_lib_string_udls 201304
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# define __cpp_lib_transparent_operators 201510
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# define __cpp_lib_tuple_element_t 201402L
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# define __cpp_lib_tuples_by_type 201304
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#endif
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#if __cplusplus >= 201703L
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// c++17
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#define __cpp_lib_addressof_constexpr 201603
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#define __cpp_lib_atomic_is_always_lock_free 201603
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#define __cpp_lib_bool_constant 201505
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#define __cpp_lib_byte 201603
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#ifdef _GLIBCXX_HAVE_BUILTIN_HAS_UNIQ_OBJ_REP
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# define __cpp_lib_has_unique_object_representations 201606
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#endif
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#ifdef _GLIBCXX_HAVE_BUILTIN_IS_AGGREGATE
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# define __cpp_lib_is_aggregate 201703
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#endif
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#define __cpp_lib_is_invocable 201703
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#define __cpp_lib_is_swappable 201603
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#ifdef _GLIBCXX_HAVE_BUILTIN_LAUNDER
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# define __cpp_lib_launder 201606
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#endif
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#define __cpp_lib_logical_traits 201510
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#define __cpp_lib_type_trait_variable_templates 201510L
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#define __cpp_lib_uncaught_exceptions 201411L
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#define __cpp_lib_void_t 201411
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#if _GLIBCXX_HOSTED
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#define __cpp_lib_any 201606L
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#define __cpp_lib_apply 201603
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#define __cpp_lib_array_constexpr 201803
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#define __cpp_lib_as_const 201510
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#define __cpp_lib_boyer_moore_searcher 201603
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#define __cpp_lib_chrono 201611
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#define __cpp_lib_clamp 201603
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#define __cpp_lib_constexpr_char_traits 201611
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#define __cpp_lib_enable_shared_from_this 201603
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#define __cpp_lib_filesystem 201703
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#define __cpp_lib_gcd 201606
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#define __cpp_lib_gcd_lcm 201606
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#define __cpp_lib_hypot 201603
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#define __cpp_lib_invoke 201411L
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#define __cpp_lib_lcm 201606
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#define __cpp_lib_make_from_tuple 201606
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#define __cpp_lib_map_insertion 201411
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#define __cpp_lib_map_try_emplace 201411
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#define __cpp_lib_math_special_functions 201603L
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#ifdef _GLIBCXX_HAS_GTHREADS
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# define __cpp_lib_memory_resource 201603
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#else
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# define __cpp_lib_memory_resource 1
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#endif
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#define __cpp_lib_node_extract 201606
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#define __cpp_lib_nonmember_container_access 201411
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#define __cpp_lib_not_fn 201603
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#define __cpp_lib_optional 201606L
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#define __cpp_lib_raw_memory_algorithms 201606L
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#define __cpp_lib_sample 201603
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#ifdef _GLIBCXX_HAS_GTHREADS
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# define __cpp_lib_scoped_lock 201703
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# define __cpp_lib_shared_mutex 201505
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#endif
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#define __cpp_lib_shared_ptr_weak_type 201606
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#define __cpp_lib_string_view 201803
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// #define __cpp_lib_to_chars 201611L
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#define __cpp_lib_unordered_map_insertion 201411
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#define __cpp_lib_unordered_map_try_emplace 201411
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#define __cpp_lib_variant 201606L
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#define __cpp_lib_parallel_algorithm 201603L
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#endif
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#if __cplusplus > 201703L
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// c++2a
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#define __cpp_lib_atomic_ref 201806L
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#define __cpp_lib_atomic_value_initialization 201911L
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#define __cpp_lib_bitops 201907L
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#define __cpp_lib_bounded_array_traits 201902L
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#if __cpp_concepts
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# define __cpp_lib_concepts 201806L
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#endif
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#if __cpp_impl_destroying_delete
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# define __cpp_lib_destroying_delete 201806L
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#endif
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#define __cpp_lib_endian 201907L
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#ifdef _GLIBCXX_HAVE_BUILTIN_IS_CONSTANT_EVALUATED
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# define __cpp_lib_is_constant_evaluated 201811L
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#endif
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#if _GLIBCXX_HOSTED
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#define __cpp_lib_bind_front 201907L
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#define __cpp_lib_constexpr_algorithms 201806L
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#define __cpp_lib_constexpr_complex 201711L
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#define __cpp_lib_constexpr_dynamic_alloc 201907L
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#define __cpp_lib_constexpr_invoke 201907L
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#define __cpp_lib_erase_if 201900L
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#define __cpp_lib_interpolate 201902L
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#ifdef _GLIBCXX_HAS_GTHREADS
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# define __cpp_lib_jthread 201907L
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#endif
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#define __cpp_lib_list_remove_return_type 201806L
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#define __cpp_lib_math_constants 201907L
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#define __cpp_lib_span 201902L
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#if __cpp_impl_three_way_comparison >= 201907L && __cpp_lib_concepts
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# define __cpp_lib_three_way_comparison 201711L
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#endif
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#define __cpp_lib_to_array 201907L
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#endif
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#endif // C++2a
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#endif // C++17
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#endif // C++14
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#endif // C++11
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#endif // _GLIBCXX_VERSION_INCLUDED
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