#ifndef DATE_H
#define DATE_H

/*
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 {
	//Declarations for data members:
        int day;
        static const int length[];   //static data member

public:
	//Declarations for member functions:
        date(int init_month, int init_day, int init_year); //constructor
	date();                      //default constructor

	static int monthsInYear();   //static member function
        void print() const;          //const member function

        void next(int n);            //non-const member functions
        void next();

        void prev(int n);
        void prev();

	//int distance(const date& another) const;             //member function
	friend int distance(const date& d1, const date& d2);   //friend function
};
#endif