class Comma
{
private:
	int			m_val;
public:
	Comma(int i): m_val(i)
	{
		printf("\nSet val = %d\n", m_val);
	}

	Comma		operator ,(Comma op2)
	{
		printf("\nthis->val = %d, op2.val = %d", this->m_val, op2.m_val);
		return op2;
	}

	void		Show()
	{
		printf("\nresult = %d\n", m_val);
	}
}; // class Comma


int main(int argc, char* argv[])
{
	Comma	ob1( 1 ), ob2( 2 ), ob3( 3 ), ob_result( 0 );
	
	ob1.Show();
	ob2.Show();
	ob3.Show();
	ob_result.Show();
	
	printf("\ndemo with '()'");
	ob_result = (ob1, ob2, ob3);
	ob_result.Show();

	printf("\ndemo with no '()'");
	ob_result = ob1, ob2, ob3;
	ob_result.Show();
	return  0 ;
}