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 forward
11 
12 #include <utility>
13 
14 #include "test_macros.h"
15 
16 struct A
17 {
18 };
19 
source()20 A source() {return A();}
csource()21 const A csource() {return A();}
22 
main()23 int main()
24 {
25 #if TEST_STD_VER >= 11
26     {
27         std::forward<A&>(source());  // expected-note {{requested here}}
28         // expected-error-re@type_traits:* 1 {{static_assert failed{{.*}} "can not forward an rvalue as an lvalue"}}
29     }
30 #else
31     {
32         std::forward<A&>(source()); // expected-error {{no matching function for call to 'forward'}}
33     }
34 #endif
35     {
36         const A ca = A();
37         std::forward<A&>(ca); // expected-error {{no matching function for call to 'forward'}}
38     }
39     {
40         std::forward<A&>(csource());  // expected-error {{no matching function for call to 'forward'}}
41     }
42     {
43         const A ca = A();
44         std::forward<A>(ca); // expected-error {{no matching function for call to 'forward'}}
45     }
46     {
47         std::forward<A>(csource()); // expected-error {{no matching function for call to 'forward'}}
48     }
49     {
50         A a;
51         std::forward(a); // expected-error {{no matching function for call to 'forward'}}
52     }
53 }
54