Task.hpp

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#pragma once
#include <coroutine>
#include <exception>
 
namespace concurrency {
 
struct Task {
    struct promise_type {
        Task get_return_object() {
            return Task(std::coroutine_handle<promise_type>::from_promise(*this));
        }
        std::suspend_never initial_suspend() { return {}; }
        std::suspend_never final_suspend() noexcept { return {}; }
        
        void return_void() {}
        void unhandled_exception() { std::terminate(); }
    };
 
    std::coroutine_handle<promise_type> handle;
 
    Task(std::coroutine_handle<promise_type> h) : handle(h) {}
};
 
} // namespace concurrency