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