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 25 template <class _Tp> 26 struct _LIBCPP_TEMPLATE_VIS is_fundamental : _BoolConstant<__is_fundamental(_Tp)> {}; 27 28 # if _LIBCPP_STD_VER >= 17 29 template <class _Tp> 30 inline constexpr bool is_fundamental_v = __is_fundamental(_Tp); 31 # endif 32 33 #else // __has_builtin(__is_fundamental) 34 35 template <class _Tp> 36 struct _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 40 template <class _Tp> 41 inline 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