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_floating_point.h> 14 #include <__type_traits/is_integral.h> 15 #include <__type_traits/is_signed.h> 16 #include <__type_traits/is_signed_integer.h> 17 #include <__type_traits/is_unsigned_integer.h> 18 19 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 20 # pragma GCC system_header 21 #endif 22 23 _LIBCPP_BEGIN_NAMESPACE_STD 24 25 #if _LIBCPP_STD_VER >= 20 26 27 // [concepts.arithmetic], arithmetic concepts 28 29 template <class _Tp> 30 concept integral = is_integral_v<_Tp>; 31 32 template <class _Tp> 33 concept signed_integral = integral<_Tp> && is_signed_v<_Tp>; 34 35 template <class _Tp> 36 concept unsigned_integral = integral<_Tp> && !signed_integral<_Tp>; 37 38 template <class _Tp> 39 concept floating_point = is_floating_point_v<_Tp>; 40 41 // Concept helpers for the internal type traits for the fundamental types. 42 43 template <class _Tp> 44 concept __libcpp_unsigned_integer = __libcpp_is_unsigned_integer<_Tp>::value; 45 46 template <class _Tp> 47 concept __libcpp_signed_integer = __libcpp_is_signed_integer<_Tp>::value; 48 49 template <class _Tp> 50 concept __libcpp_integer = __libcpp_unsigned_integer<_Tp> || __libcpp_signed_integer<_Tp>; 51 52 #endif // _LIBCPP_STD_VER >= 20 53 54 _LIBCPP_END_NAMESPACE_STD 55 56 #endif // _LIBCPP___CONCEPTS_ARITHMETIC_H 57