Date.h

// Fig. 10.6: Date.h
// Date class definition with overloaded increment operators.
#pragma once
#ifndef DATE_H
#define DATE_H

#include <array>
#include <iostream>

class Date {
	friend std::ostream& operator<<(std::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
	unsigned int getMonth();
	Date& operator++(); // prefix increment operator
	Date operator++(int); // postfix increment operator
	Date& operator+=(unsigned int); // add days, modify object
	static bool leapYear(int); // is year a leap year?
	bool endOfMonth(int) const; // is day at the end of month?
private:
	unsigned int month;
	unsigned int day;
	unsigned int year;

	static const std::array<unsigned int, 13> days; // days per month
	void helpIncrement(); // utility function for incrementing date
};
#endif // !DATE_H