C-C++ Programming Encyclopedia

C++ is one of the first programming languages to bring in the Object Oriented Programming concepts. The Cplusplus language is a very fast programming language, which is not only very compatible with most of the hardware but also capable of executing on various platforms like Linux and Windows OS.

All base classes should have a virtual destructor . If the class should be abstract (you want to prevent instantiating it) but it doesn’t happen to have any other pure virtual functions, a common technique to make the destructor pure virtual:

A C++ pure virtual function is a virtual function that you want to force derived classes to override. If a class has any non-overridden pure virtuals, it is an “abstract class” and you can’t create objects of that type.