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 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 // UNSUPPORTED: libcpp-no-concepts
11 
12 // template<class In, class Out>
13 // concept indirectly_movable;
14 
15 #include <iterator>
16 
17 #include "test_macros.h"
18 
19 struct IndirectlyMovableWithInt {
20   int& operator*() const;
21 };
22 
23 struct Empty {};
24 
25 struct MoveOnly {
26   MoveOnly(MoveOnly&&) = default;
27   MoveOnly(MoveOnly const&) = delete;
28   MoveOnly& operator=(MoveOnly&&) = default;
29   MoveOnly& operator=(MoveOnly const&) = delete;
30   MoveOnly() = default;
31 };
32 
33 template<class T>
34 struct PointerTo {
35   using value_type = T;
36   T& operator*() const;
37 };
38 
39 static_assert( std::indirectly_movable<int*, int*>);
40 static_assert( std::indirectly_movable<const int*, int *>);
41 static_assert(!std::indirectly_movable<int*, const int *>);
42 static_assert(!std::indirectly_movable<const int*, const int *>);
43 static_assert( std::indirectly_movable<int*, int[2]>);
44 static_assert(!std::indirectly_movable<int[2], int*>);
45 static_assert(!std::indirectly_movable<int[2], int[2]>);
46 static_assert(!std::indirectly_movable<int(&)[2], int(&)[2]>);
47 static_assert(!std::indirectly_movable<int, int*>);
48 static_assert(!std::indirectly_movable<int, int>);
49 static_assert( std::indirectly_movable<Empty*, Empty*>);
50 static_assert( std::indirectly_movable<int*, IndirectlyMovableWithInt>);
51 static_assert(!std::indirectly_movable<Empty*, IndirectlyMovableWithInt>);
52 static_assert( std::indirectly_movable<int*, IndirectlyMovableWithInt>);
53 static_assert( std::indirectly_movable<MoveOnly*, MoveOnly*>);
54 static_assert(!std::indirectly_movable<MoveOnly*, const MoveOnly*>);
55 static_assert(!std::indirectly_movable<const MoveOnly*, const MoveOnly*>);
56 static_assert(!std::indirectly_movable<const MoveOnly*, MoveOnly*>);
57 static_assert( std::indirectly_movable<PointerTo<MoveOnly>, PointerTo<MoveOnly>>);
58 static_assert( std::indirectly_movable<MoveOnly*, PointerTo<MoveOnly>>);
59