date.h

来自「C程序设计经典教程第5版程序示例,比较适合初级c语言的学生」· C头文件 代码 · 共 45 行

// Fig. 22.12: Date.h
// Date class definition.
#ifndef DATE_H
#define DATE_H

#include <iostream>
using std::ostream;

class Date
{
   friend ostream &operator<<( ostream &, const Date & );
public:
   Date( int m = 1, int d = 1, int y = 1900 ); // default constructor
   void setDate( int, int, int ); // set month, day, year
   Date &operator++(); // prefix increment operator
   Date operator++( int ); // postfix increment operator
   const Date &operator+=( int ); // add days, modify object
   bool leapYear( int ) const; // is date in a leap year?
   bool endOfMonth( int ) const; // is date at the end of month?
private:
   int month;
   int day;
   int year;

   static const int days[]; // array of days per month
   void helpIncrement(); // utility function for incrementing date
}; // end class Date

#endif

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