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// This file is to test the mixed use of `std::experimental::coroutine*` and `std::coroutine*`
// wouldn't make the compiler to crash and emit the diagnostic message correctly.
// RUN: %clang_cc1 -verify -std=c++20 -fsyntax-only %s
#include "Inputs/std-coroutine-exp-namespace.h"
#include "Inputs/std-coroutine.h" // Second
struct my_awaitable {
bool await_ready() noexcept;
void await_suspend(std::experimental::coroutine_handle<> coro) noexcept;
void await_resume() noexcept;
};
struct promise_void {
void get_return_object();
my_awaitable initial_suspend();
my_awaitable final_suspend() noexcept;
void return_void();
void unhandled_exception();
};
template <>
struct std::coroutine_traits<void> { using promise_type = promise_void; };
void test() {
co_return; // expected-error {{mixed use of std and std::experimental namespaces for coroutine components}}
// expected-warning@-1{{support for std::experimental::coroutine_traits will be removed}}
// expected-note@Inputs/std-coroutine-exp-namespace.h:8 {{'coroutine_traits' declared here}}
// expected-note@Inputs/std-coroutine.h:8 {{'coroutine_traits' declared here}}
}
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