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_MOVABLE_H
10 #define _LIBCPP___CONCEPTS_MOVABLE_H
11 
12 #include <__concepts/assignable.h>
13 #include <__concepts/constructible.h>
14 #include <__concepts/swappable.h>
15 #include <__config>
16 #include <__type_traits/is_object.h>
17 
18 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
19 #  pragma GCC system_header
20 #endif
21 
22 _LIBCPP_BEGIN_NAMESPACE_STD
23 
24 #if _LIBCPP_STD_VER >= 20
25 
26 // [concepts.object]
27 
28 template <class _Tp>
29 concept movable = is_object_v<_Tp> && move_constructible<_Tp> && assignable_from<_Tp&, _Tp> && swappable<_Tp>;
30 
31 #endif // _LIBCPP_STD_VER >= 20
32 
33 _LIBCPP_END_NAMESPACE_STD
34 
35 #endif // _LIBCPP___CONCEPTS_MOVABLE_H
36