//*******************************************
//esempio overloading operatori con funzione
//friend
//*******************************************

#include <iostream>
using namespace std;

class custom{
	int number;
public:
	custom(){number=0;}
	custom(int num){number=num;}
	void show(){
		cout<<"Il numero di clienti e'... "<<number<<endl;
	}
	friend custom operator+(custom ob1,custom ob2){
		ob1.number=ob1.number+ob2.number;
		return ob1;
	}
};

//=============================================================
int main(){
	custom cust1,cust2(3);
	cust1.show();
	cust2.show();
	cust1=cust1+cust2;
	cust1.show();
	cust2.show();
	return 0;
}