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_FUNDAMENTAL_H
10#define _LIBCPP___TYPE_TRAITS_IS_FUNDAMENTAL_H
11
12#include <__config>
13#include <__type_traits/integral_constant.h>
14#include <__type_traits/is_null_pointer.h>
15#include <__type_traits/is_void.h>
16
17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18#  pragma GCC system_header
19#endif
20
21_LIBCPP_BEGIN_NAMESPACE_STD
22
23#if __has_builtin(__is_fundamental)
24
25template <class _Tp>
26struct _LIBCPP_TEMPLATE_VIS is_fundamental : _BoolConstant<__is_fundamental(_Tp)> {};
27
28#  if _LIBCPP_STD_VER >= 17
29template <class _Tp>
30inline constexpr bool is_fundamental_v = __is_fundamental(_Tp);
31#  endif
32
33#else // __has_builtin(__is_fundamental)
34
35template <class _Tp>
36struct _LIBCPP_TEMPLATE_VIS is_fundamental
37    : public integral_constant<bool, is_void<_Tp>::value || __is_nullptr_t<_Tp>::value || is_arithmetic<_Tp>::value> {};
38
39#  if _LIBCPP_STD_VER >= 17
40template <class _Tp>
41inline constexpr bool is_fundamental_v = is_fundamental<_Tp>::value;
42#  endif
43
44#endif // __has_builtin(__is_fundamental)
45
46_LIBCPP_END_NAMESPACE_STD
47
48#endif // _LIBCPP___TYPE_TRAITS_IS_FUNDAMENTAL_H
49