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 // test forward
10
11 #include <utility>
12
13 #include "test_macros.h"
14
15 struct A
16 {
17 };
18
source()19 A source() {return A();}
csource()20 const A csource() {return A();}
21
main(int,char **)22 int main(int, char**)
23 {
24 {
25 std::forward<A&>(source()); // expected-note {{requested here}}
26 // expected-error-re@type_traits:* 1 {{static_assert failed{{.*}} "can not forward an rvalue as an lvalue"}}
27 }
28 {
29 const A ca = A();
30 std::forward<A&>(ca); // expected-error {{no matching function for call to 'forward'}}
31 }
32 {
33 std::forward<A&>(csource()); // expected-error {{no matching function for call to 'forward'}}
34 }
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 A a;
44 std::forward(a); // expected-error {{no matching function for call to 'forward'}}
45 }
46
47 return 0;
48 }
49