#include <iostream>
#include <thread>
using namespace std;
 
struct Join {};
struct Detach {};
 
template <typename Action>
class Thread {
public:
 
	Thread(thread && t) : th(move(t)) {}
 
	~Thread()
	{
		if (th.joinable()) action(Action());
	}
 
private:
 
	thread th;
 
	void action(Join)
	{
		th.join();
	}
 
	void action(Detach)
	{
		th.detach();
	}
};
 
void work()
{
}
 
int main()
{
	Thread<Join> t1(thread(work));
	Thread<Detach> t2(thread(work));
}
 

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