What do you mean by pure virtual functions?

What do you mean by pure virtual functions?

A pure virtual function is a bassically which function that must be overridden in a derived class and need not be defined.  A pure virtual member function is a member function that the base class forces derived classes to provide. Any class containing any pure virtual function cannot be 
used to create object of its own type.

By:Umang
Date:2001-01-09 00:00:00

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