https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103871
--- Comment #2 from Egor Pugin <egor.pugin at gmail dot com> ---
Repro
#include <coroutine>
#include <memory>
#include <vector>
struct s {
s(std::vector<long> &&);
};
struct async_task {
struct promise_type {
auto initial_suspend() const { return std::suspend_never{}; }
auto final_suspend() noexcept { return std::suspend_never{}; }
auto get_return_object() { return async_task{}; }
void return_void() {}
void unhandled_exception() {}
};
bool await_ready() const { return false; }
void await_suspend(std::coroutine_handle<> h) {}
auto await_resume() {}
};
auto g(auto f) {
return async_task{};
}
async_task f() {
// comment out co_await to make error disappear
co_await g(std::make_unique<s>(std::vector{0L})); // error
//g(std::make_unique<s>(std::vector{0L})); // ok
co_return;
}
int main() {
f();
}
