#include<iostream>
#include<string>
#include<fstream>

using namespace std;

class A
{
	public:
		A();
		A(A& NewA);
		~A();
		int x;
};

A::A()
{
	cout << "A's Constructor" << endl;
}

A::A(A& NewA)
{
	cout << "A's Copy Constructor" << endl;
}

A::~A()
{
	cout << "A's Destructor" << endl;
}

void main()
{
	try
	{
		A a1;
		A a2;
		a2.x = 3;
		throw a2; //when an object is thrown its copy constructor is automaticaly called
	}
	catch(A& a) //try this with and without a pass by reference
	{
		cout << a.x << endl;
	}
}