bind、function的使用

#include <iostream>
#include <functional>
using namespace std;
class Temp {
public:
	typedef function<void(int)> callback;

	void setcallback(callback cb)
	{
		cb_ = std::move(cb);
	}
	void cb(int j)
	{
		cb_(j);
	}
	callback cb_;
};
class Test
{
public:
	Test(int i) :i_(i), tmp(new Temp())
	{
		tmp->setcallback(bind(&Test::show, this, placeholders::_1));
	};

	void show(int j)
	{
		cout << i_ << endl;
		cout << "hahaha" << endl;
		cout << j << endl;
	}
	Temp* tmp;
	int i_;
};


int main()
{
	Test* p = new Test(5);
	p->tmp->cb(6);
	return 0;
}