1//===----------------------------------------------------------------------===// 2// 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4// See https://llvm.org/LICENSE.txt for license information. 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6// 7//===----------------------------------------------------------------------===// 8 9#ifndef _LIBCPP___TYPE_TRAITS_IS_NOTHROW_COPY_CONSTRUCTIBLE_H 10#define _LIBCPP___TYPE_TRAITS_IS_NOTHROW_COPY_CONSTRUCTIBLE_H 11 12#include <__config> 13#include <__type_traits/add_const.h> 14#include <__type_traits/add_lvalue_reference.h> 15#include <__type_traits/integral_constant.h> 16#include <__type_traits/is_nothrow_constructible.h> 17 18#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19# pragma GCC system_header 20#endif 21 22_LIBCPP_BEGIN_NAMESPACE_STD 23 24// TODO: remove this implementation once https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106611 is fixed 25#ifdef _LIBCPP_COMPILER_GCC 26 27template <class _Tp> 28struct _LIBCPP_TEMPLATE_VIS is_nothrow_copy_constructible 29 : public is_nothrow_constructible<_Tp, __add_lvalue_reference_t<typename add_const<_Tp>::type> > {}; 30 31#else // _LIBCPP_COMPILER_GCC 32 33template <class _Tp> 34struct _LIBCPP_TEMPLATE_VIS is_nothrow_copy_constructible 35 : public integral_constant< 36 bool, 37 __is_nothrow_constructible(_Tp, typename add_lvalue_reference<typename add_const<_Tp>::type>::type)> {}; 38 39#endif // _LIBCPP_COMPILER_GCC 40 41#if _LIBCPP_STD_VER >= 17 42template <class _Tp> 43inline constexpr bool is_nothrow_copy_constructible_v = is_nothrow_copy_constructible<_Tp>::value; 44#endif 45 46_LIBCPP_END_NAMESPACE_STD 47 48#endif // _LIBCPP___TYPE_TRAITS_IS_NOTHROW_COPY_CONSTRUCTIBLE_H 49