| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___TYPE_TRAITS_IS_NOTHROW_DESTRUCTIBLE_H |
| #define _LIBCPP___TYPE_TRAITS_IS_NOTHROW_DESTRUCTIBLE_H |
| |
| #include <__config> |
| #include <__type_traits/integral_constant.h> |
| #include <__type_traits/is_destructible.h> |
| #include <__type_traits/is_reference.h> |
| #include <__type_traits/is_scalar.h> |
| #include <__type_traits/remove_all_extents.h> |
| #include <__utility/declval.h> |
| #include <cstddef> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if !defined(_LIBCPP_CXX03_LANG) |
| |
| template <bool, class _Tp> |
| struct __libcpp_is_nothrow_destructible; |
| |
| template <class _Tp> |
| struct __libcpp_is_nothrow_destructible<false, _Tp> : public false_type {}; |
| |
| template <class _Tp> |
| struct __libcpp_is_nothrow_destructible<true, _Tp> |
| : public integral_constant<bool, noexcept(std::declval<_Tp>().~_Tp()) > {}; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible |
| : public __libcpp_is_nothrow_destructible<is_destructible<_Tp>::value, _Tp> {}; |
| |
| template <class _Tp, size_t _Ns> |
| struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp[_Ns]> : public is_nothrow_destructible<_Tp> {}; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp&> : public true_type {}; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp&&> : public true_type {}; |
| |
| #else |
| |
| template <class _Tp> |
| struct __libcpp_nothrow_destructor : public integral_constant<bool, is_scalar<_Tp>::value || is_reference<_Tp>::value> { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible : public __libcpp_nothrow_destructor<__remove_all_extents_t<_Tp> > { |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS is_nothrow_destructible<_Tp[]> : public false_type {}; |
| |
| #endif |
| |
| #if _LIBCPP_STD_VER >= 17 |
| template <class _Tp> |
| inline constexpr bool is_nothrow_destructible_v = is_nothrow_destructible<_Tp>::value; |
| #endif |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___TYPE_TRAITS_IS_NOTHROW_DESTRUCTIBLE_H |