//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
#include <coroutine>
#include <type_traits>
#include "test_macros.h"
struct A {
using promise_type = A*;
};
struct B {};
struct C {};
template <>
struct std::coroutine_traits<A, int> {
using promise_type = int*;
};
template <class ...Args>
struct std::coroutine_traits<B, Args...> {
using promise_type = B*;
};
template <>
struct std::coroutine_traits<C> {
using promise_type = void;
};
template <class Expect, class T, class ...Args>
void check_type() {
using P = typename std::coroutine_traits<T, Args...>::promise_type ;
static_assert(std::is_same<P, Expect>::value, "");
};
int main(int, char**)
{
check_type<A*, A>();
check_type<int*, A, int>();
check_type<B*, B>();
check_type<void, C>();
return 0;
}