l2.cpp

#pragma once
#include <thread>
#include <future>
#include <iostream>

class SuspendThread {
private:
	std::function<void()> func;
	std::thread task;
public:
	template<typename FN_, typename ... Arguments>
	SuspendThread(FN_ func, Arguments&& ... args)
		: func(std::bind(func, std::forward<Arguments>(args)...))
	{
		
	}

	~SuspendThread()
	{
		task.join();
	}
	void run()
	{
		std::thread t(func);
		task = std::move(t);
	}
};