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___CONCEPTS_ARITHMETIC_H 10 #define _LIBCPP___CONCEPTS_ARITHMETIC_H 11 12 #include <__config> 13 #include <__type_traits/is_signed_integer.h> 14 #include <__type_traits/is_unsigned_integer.h> 15 #include <type_traits> 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 _LIBCPP_STD_VER > 17 24 25 // [concepts.arithmetic], arithmetic concepts 26 27 template<class _Tp> 28 concept integral = is_integral_v<_Tp>; 29 30 template<class _Tp> 31 concept signed_integral = integral<_Tp> && is_signed_v<_Tp>; 32 33 template<class _Tp> 34 concept unsigned_integral = integral<_Tp> && !signed_integral<_Tp>; 35 36 template<class _Tp> 37 concept floating_point = is_floating_point_v<_Tp>; 38 39 // Concept helpers for the internal type traits for the fundamental types. 40 41 template <class _Tp> 42 concept __libcpp_unsigned_integer = __libcpp_is_unsigned_integer<_Tp>::value; 43 template <class _Tp> 44 concept __libcpp_signed_integer = __libcpp_is_signed_integer<_Tp>::value; 45 46 #endif // _LIBCPP_STD_VER > 17 47 48 _LIBCPP_END_NAMESPACE_STD 49 50 #endif // _LIBCPP___CONCEPTS_ARITHMETIC_H 51