1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // test move
11 
12 #include <utility>
13 #include <cassert>
14 
15 class move_only
16 {
17 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
18     move_only(const move_only&);
19     move_only& operator=(const move_only&);
20 #else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
21     move_only(move_only&);
22     move_only& operator=(move_only&);
23 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
24 
25 public:
26 
27 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
28     move_only(move_only&&) {}
29     move_only& operator=(move_only&&) {return *this;}
30 #else  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
31     operator std::__rv<move_only> () {return std::__rv<move_only>(*this);}
32     move_only(std::__rv<move_only>) {}
33 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
34 
35     move_only() {}
36 };
37 
38 move_only source() {return move_only();}
39 const move_only csource() {return move_only();}
40 
41 void test(move_only) {}
42 
43 int main()
44 {
45     move_only mo;
46 
47     test(std::move(mo));
48     test(source());
49 }
50