date.h

#ifndef DATE_PRO_DATE_H
#define DATE_PRO_DATE_H

#include <iostream>

using namespace std;

class date {
private:
    int day, month, year;
    int getWday();
    int *months_days;
    void init();
    void update_months_days();
    void increment();
    void decrement();

public:
    date();
    date(date const& d);
    date(int d,int m, int y);
    date(int m, int y);
    date(int y);

    ~date(){
        delete[] months_days;
    }

    bool isBissextile();

    friend ostream &operator<<(ostream &out, date const& d);
    void PrintDate();

    date operator++(int); // post fix
    date operator--(int);
    date operator++(); // pre fix
    date operator--();
    date operator+(int d);
    date operator+=(int d);
    date operator-(int d);
    date operator-=(int d);

    bool operator==(date const& d);
    bool operator!=(date const& d);
    bool operator<(date const& d);
    bool operator<=(date const& d);
    bool operator>(date const& d);
    bool operator>=(date const& d);

    int operator-(date const& d);

    int getDay() const {
        return day;
    }

    void setDay(int day) {
        this->day = (day < 1) ? 1 : ( (day > months_days[month - 1]) ? months_days[month - 1] : day );
    }

    int getYear() const {
        return year;
    }

    void setYear(int year) {
        this->year = (year < 1) ? 1 : year;  //cout << "1 \n";
        update_months_days();  //cout << "1 \n";
        setDay(day);
    }

    int getMonth() const {
        return month;
    }

    void setMonth(int month) {
        this->month = (month < 1) ? 1 : ( (month > 12) ? 12 : month );
        setDay(day);
    }

};

#endif //DATE_PRO_DATE_H