std::function解决函数重载绑定

// Functoional.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。

#include <iostream>
#include <functional>
using namespace std;
typedef void(*f)(int);
typedef void(*FuncVoid)(void);

void Print()
{
	cout << "print" << endl;
}
void Print(int a)
{
	cout << "print" << a << endl;
}
class Fun
{
public:
	void Print()
	{
		cout << "print" << endl;
	}
	void Print(int a)
	{
		cout << "print" << a << endl;
	}

};


int main()
{
	FuncVoid fv;
	fv = Print;
	fv();
	void();
	//std::function<void()> func = std::bind<void()>(Print);
	//同名函数重载
	std::function<void()> func = bind((FuncVoid)Print);
	std::function<void(int)> func2 = bind((void(*)(int))Print, placeholders::_1);
	Fun f;
	std::function<void()> func3 = bind((void(Fun::*)())&Fun::Print, f);
	std::function<void(int)> func4 = bind((void(Fun::*)(int))&Fun::Print,
		f, std::placeholders::_1);
	func();
	func2(3);
	func3();
	func4(4);
	cout << "func c" << endl;

	return 0;
}