| Brian Gesiak | 32ee712 | 2018-07-11 00:45:48 +0000 | [diff] [blame] | 1 | // This file contains references to sections of the Coroutines TS, which can be |
| 2 | // found at http://wg21.link/coroutines. |
| 3 | |
| 4 | // RUN: %clang_cc1 -std=c++14 -fcoroutines-ts -verify %s -fcxx-exceptions -fexceptions -Wunused-result |
| 5 | |
| 6 | namespace std { |
| 7 | namespace experimental { |
| 8 | |
| 9 | template<typename ...T> |
| 10 | struct coroutine_traits { |
| 11 | struct promise_type {}; |
| 12 | }; |
| 13 | |
| 14 | template<> struct coroutine_traits<void>; // expected-note {{forward declaration of 'std::experimental::coroutine_traits<void>'}} |
| 15 | }} // namespace std::experimental |
| 16 | |
| 17 | void uses_forward_declaration() { |
| 18 | co_return; // expected-error {{this function cannot be a coroutine: missing definition of specialization 'coroutine_traits<void>'}} |
| 19 | } |