| // { dg-additional-options "-fsyntax-only -w" } |
| |
| // Diagnose bad coroutine awatiable type. |
| |
| #include<coroutine> |
| |
| struct coro{ |
| struct not_a_template{}; |
| using promise_type = coro; |
| static constexpr std::suspend_always initial_suspend()noexcept{ return {}; } |
| constexpr bool await_ready()noexcept{ return false; } |
| constexpr not_a_template await_suspend(std::coroutine_handle<>)noexcept{ return{}; } |
| constexpr void await_resume()noexcept{} |
| static coro body() |
| { |
| co_await coro{}; // { dg-error {'await_suspend' must return 'void', 'bool' or a coroutine handle} } |
| } |
| }; |
