| // RUN: %clang_cc1 -std=c++20 -verify %s -fcxx-exceptions -fexceptions -triple x86_64-windows-msvc -fms-extensions |
| namespace std { |
| template <typename... T> struct coroutine_traits; |
| |
| template <class Promise = void> struct coroutine_handle { |
| coroutine_handle() = default; |
| static coroutine_handle from_address(void *) noexcept; |
| }; |
| template <> struct coroutine_handle<void> { |
| static coroutine_handle from_address(void *) noexcept; |
| coroutine_handle() = default; |
| template <class PromiseType> |
| coroutine_handle(coroutine_handle<PromiseType>) noexcept; |
| }; |
| } // namespace std |
| |
| struct suspend_always { |
| bool await_ready() noexcept; |
| void await_suspend(std::coroutine_handle<>) noexcept; |
| void await_resume() noexcept; |
| }; |
| |
| template <> struct std::coroutine_traits<void> { |
| struct promise_type { |
| void get_return_object() noexcept; |
| suspend_always initial_suspend() noexcept; |
| suspend_always final_suspend() noexcept; |
| void return_void() noexcept; |
| void unhandled_exception() noexcept; |
| }; |
| }; |
| |
| void SEH_used() { |
| __try { // expected-error {{cannot use SEH '__try' in a coroutine when C++ exceptions are enabled}} |
| co_return; // expected-note {{function is a coroutine due to use of 'co_return' here}} |
| } __except(0) {} |
| } |