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_TRIVIALLY_COPYABLE_H
10#define _LIBCPP___TYPE_TRAITS_IS_TRIVIALLY_COPYABLE_H
11
12#include <__config>
13#include <__type_traits/integral_constant.h>
14#include <cstdint>
15
16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17#  pragma GCC system_header
18#endif
19
20_LIBCPP_BEGIN_NAMESPACE_STD
21
22template <class _Tp>
23struct _LIBCPP_TEMPLATE_VIS is_trivially_copyable : public integral_constant<bool, __is_trivially_copyable(_Tp)> {};
24
25#if _LIBCPP_STD_VER >= 17
26template <class _Tp>
27inline constexpr bool is_trivially_copyable_v = __is_trivially_copyable(_Tp);
28#endif
29
30#if _LIBCPP_STD_VER >= 20
31template <class _Tp>
32inline constexpr bool __is_cheap_to_copy = is_trivially_copyable_v<_Tp> && sizeof(_Tp) <= sizeof(std::intmax_t);
33#endif
34
35_LIBCPP_END_NAMESPACE_STD
36
37#endif // _LIBCPP___TYPE_TRAITS_IS_TRIVIALLY_COPYABLE_H
38