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