| //===----------------------------------------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // test forward |
| |
| #include <utility> |
| |
| #include "test_macros.h" |
| |
| struct A |
| { |
| }; |
| |
| A source() {return A();} |
| const A csource() {return A();} |
| |
| int main() |
| { |
| #if TEST_STD_VER >= 11 |
| { |
| std::forward<A&>(source()); // expected-note {{requested here}} |
| // expected-error-re@type_traits:* 1 {{static_assert failed{{.*}} "can not forward an rvalue as an lvalue"}} |
| } |
| #else |
| { |
| std::forward<A&>(source()); // expected-error {{no matching function for call to 'forward'}} |
| } |
| #endif |
| { |
| const A ca = A(); |
| std::forward<A&>(ca); // expected-error {{no matching function for call to 'forward'}} |
| } |
| { |
| std::forward<A&>(csource()); // expected-error {{no matching function for call to 'forward'}} |
| } |
| { |
| const A ca = A(); |
| std::forward<A>(ca); // expected-error {{no matching function for call to 'forward'}} |
| } |
| { |
| std::forward<A>(csource()); // expected-error {{no matching function for call to 'forward'}} |
| } |
| { |
| A a; |
| std::forward(a); // expected-error {{no matching function for call to 'forward'}} |
| } |
| } |