konstruktory Tomek: Klasa daty, która pobiera datę, dodaje dni i wyświetla nową datę w C++. Nie proszę o kod, proszę o wskazówki. Dziękuje.

Dziadek Mróz: Coś na kształt DateTime w C#: Time: Second Minute Hour Time() → czas systemowy Time(second, minute, hour) Second = second, ... second() return Second minute() return Minute hour() return Hour friend std::ostream &operator <<(std::ostream &os, const Time &t) format(const char *frm) → wyświetlenie czasu w danym formacie %s, %ss, %m, %mm, ... Time &operator +(const Time &t1, const Time &t2) Time &operator −(const Time &t1, const Time &t2) Time &operator +(int seconds, const Time &t) Time &operator −(int seconds, const Time &t) Date: Day Month Year Date() → data systemowa Date(day, month, year) Day = day, ... day() return Day month() return Month year() return Year friend std::ostream &operator <<(std::ostream &os, const Date &d) format(const char *frm) → wyświetlenie daty w danym formacie %s, %ss, %m, %mm, ... Date &operator +(const Date &d1, const Date &d2) Date &operator −(const Date &d1, const Date &d2) Date &operator +(int seconds, const Date &d) Date &operator −(int seconds, const Date &d) DateTime(Time, Date): → dziedziczenie po Time i Date DateTime() → Time(), Date() DateTime(second, minute, hour) → Time(second, minute, hour) DateTime(second, minute, hour, day, month, year) → Time(second, ...), Date(day, ...) friend std::ostream &operator <<(std::ostream &os, const DateTime &dt) format(const char *frm) → wyświetlenie daty w danym formacie %s, %ss, %m, %mm, ... DateTime &operator +(const DateTime &dt1, const DateTime &dt2) DateTime &operator −(const DateTime &dt1, const DateTime &dt2) DateTime &operator +(int seconds, const DateTime &dt) DateTime &operator −(int seconds, const DateTime &dt) Niezbyt skomplikowany projekt ale zabawy co niemiara ;)