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 29template <class _Tp> 30concept integral = is_integral_v<_Tp>; 31 32template <class _Tp> 33concept signed_integral = integral<_Tp> && is_signed_v<_Tp>; 34 35template <class _Tp> 36concept unsigned_integral = integral<_Tp> && !signed_integral<_Tp>; 37 38template <class _Tp> 39concept floating_point = is_floating_point_v<_Tp>; 40 41// Concept helpers for the internal type traits for the fundamental types. 42 43template <class _Tp> 44concept __libcpp_unsigned_integer = __libcpp_is_unsigned_integer<_Tp>::value; 45 46template <class _Tp> 47concept __libcpp_signed_integer = __libcpp_is_signed_integer<_Tp>::value; 48 49template <class _Tp> 50concept __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