#include<iostream.h>

enum eMonths
{
	JANUARY = 1,
	FEBUARY,
	MARCH,
	APRIL,
	MAY,
	JUNE,
	JULY,
	AUGUST,
	SEPTEMBER,
	OCTOBER,
	NOVEMBER,
	DECEMBER
};

//post-incrament
eMonths& operator++(eMonths& Month, int Garbage)
{
	eMonths OldMonth = Month;

	if (Month != DECEMBER)
	{
		Month = static_cast<eMonths>( Month + 1 );
	}
	else
	{
		Month = JANUARY;
	}

	return OldMonth;
}

//pre-incrament
eMonths& operator++(eMonths& Month)
{
	if (Month != DECEMBER)
	{
		Month = static_cast<eMonths>( Month + 1 );
	}
	else
	{
		Month = JANUARY;
	}

	return Month;
}
ostream& operator<<(ostream& output, const eMonths& Month)
{
	switch(Month)
	{
	case JANUARY:
		output << "Jan"; break;
	case FEBUARY:
		output << "Feb"; break;
	case MARCH:
		output << "Mar"; break;
	case APRIL:
		output << "Apr"; break;
	case MAY:
		output << "May"; break;
	case JUNE:
		output << "Jun"; break;
	case JULY:
		output << "Jul"; break;
	case AUGUST:
		output << "Aug"; break;
	case SEPTEMBER:
		output << "Sep"; break;
	case OCTOBER:
		output << "Oct"; break;
	case NOVEMBER:
		output << "Nov"; break;
	case DECEMBER:
		output << "Dec"; break;
	}


void main()
{
	eMonths Month = JANUARY;

	do
	{
		cout << "Current Month number is"  << Month << endl;

		Month++;
	}while(Month != JANUARY);


	cout << Month << endl;
	cout << Month++ << endl;
	cout << ++Month << endl; 

}