#ifndef DATE_H
#define DATE_H

/****************************************************************************
** COPYRIGHT (C):    1997 Cay S. Horstmann. All Rights Reserved.
** PROJECT:          Practical OO Development with C++ and Java
** FILE:             date.h
** PURPOSE:          date class for chapter 3
** VERSION           1.0
** PROGRAMMERS:      Cay Horstmann (CSH)
** RELEASE DATE:     3-15-97 (CSH)
** UPDATE HISTORY:
****************************************************************************/

#line 17 "date.cpp"

#include <time.h>

#line 20 "date.cpp"
 class Date
{
public:
   enum Weekday { MON, TUE, WED, THU, FRI, SAT, SUN };

   Date();
   Date(int d, int m, int y); 

   void advance(long n); 

   int day() const;
   int month() const;
   int year() const;
   Weekday weekday() const;
   Date add_days(long n) const; 
   long days_between(const Date& b) const; 
   int compare(const Date& b) const;

   static int compare(const Date* a, const Date* b);
   static Date today();

private:
   bool is_valid() const;
   static bool is_leap(int year);

   int _day;
   int _month;
   int _year;

   static int days_per_month[12];
};

#line 140 "date.cpp"
extern istream& operator>>(istream& is, Date& date);

#line 162 "date.cpp"
extern ostream& operator<<(ostream& os, const Date& date);

#line 251 "date.cpp"
 inline int Date::day() const
{  return _day;
}

#line 257 "date.cpp"
 inline int Date::month() const
{  return _month;
}

#line 263 "date.cpp"
 inline int Date::year() const
{  return _year;
}

#endif