// Listing 10.12

// Returning the dereferenced this pointer


#include <iostream.h>

class Counter
{
public:
	Counter();
	~Counter(){}
	int GetItsVal()const { return itsVal; }
	void SetItsVal(int x) {itsVal = x; }
	const Counter& operator++ ();      // prefix

	const Counter operator++ (int); // postfix


private:
	int itsVal;
};

Counter::Counter():
itsVal(0)
{}

const Counter& Counter::operator++()
{
	++itsVal;
	return *this; // ????

}

const Counter Counter::operator++(int x)// how does the compiler

// know that this is postfix and not prefix?

{
	Counter temp(*this);//what does this do?

	++itsVal;
	return temp;
}

int main()
{
	Counter i;
	cout << "The value of i is " << i.GetItsVal() << endl;
	i++;
	cout << "The value of i is " << i.GetItsVal() << endl;
	++i;
	cout << "The value of i is " << i.GetItsVal() << endl;
	Counter a = ++i;
	cout << "The value of a: " << a.GetItsVal();
	cout << " and i: " << i.GetItsVal() << endl;
	a = i++;
	cout << "The value of a: " << a.GetItsVal();
	cout << " and i: " << i.GetItsVal() << endl;
	return 0;
}