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 template <class _Tp>
46 concept __libcpp_signed_integer = __libcpp_is_signed_integer<_Tp>::value;
47 
48 #endif // _LIBCPP_STD_VER >= 20
49 
50 _LIBCPP_END_NAMESPACE_STD
51 
52 #endif // _LIBCPP___CONCEPTS_ARITHMETIC_H
53