Polymorphism
- The compiler realizes that a
TravelClock is a special case of a Clock, and
permits the assignment
clocks[1] = TravelClock(true, "Rome", 9);
- However, there is no room to store the derived-class data.
- That data simply gets sliced away when a
derived-class object is assigned to a base-class variable.
- The output from the program (above) is
Local time is 21:15 Local time is 21:15 Local time is 21:15