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