#ifndef DATE_H
#define DATE_H
#include <iostream>   //for class ostream (the class of the object cout)
using namespace std;

//This is the header file for class date.
//Jan  1, 0 AD is day   0
//Jan  2, 0 AD is day   1
//Dec 31, 0 AD is day 364
//Jan  1, 1 AD is day 365
//etc.
//so  day / 365 is the year
//and day % 365 is the day of the year (in the range 0 to 364 inclusive)

class date {
	int day;
	static const int length[12+1];
public:
	date(int m, int d, int y);
	date();   //Put today's date into the newborn object.
	date& operator+=(int n) {day += n; return *this;}

	//const date operator+(int i) {date copy {*this}; copy.day += n; return copy;}
	//const date operator+(int i) {date copy {*this}; return copy += i;}

	//date& operator++() {++day; return *this;}   //prefix increment
	//date& operator++() {return *this += 1;}     //prefix increment
	
	//const date operator++(int) {                //postfix increment
	//	const date old {*this};
	//	++day;
	//	return old;
	//}

	//const date operator++(int) {                //postfix increment
	//	const date old {*this};
	//	++*this;  //(*this).operator++();  this->operator++();
	//	return old;
	//}

	friend ostream& operator<<(ostream& ost, const date& d);
};

inline const date operator+(date d, int i) {return d += i;}
inline const date operator+(int i, date d) {return d += i;}

inline date& operator++(date& d) {return d += 1;}   //prefix increment
						   
inline const date operator++(date& d, int)          //postfix increment
{
	const date old {d};
	++d;   //d.operator++();
	return old;
}

#endif