Interview Questions

What do you mean by pure virtual functions?

C++ Interview Questions and Answers


(Continued from previous question...)

What do you mean by pure virtual functions?

A pure virtual member function is a member function that the base class forces derived classes to provide. Normally these member functions have no implementation. Pure virtual functions are equated to zero.
class Shape { public: virtual void draw() = 0; };

(Continued on next question...)

Other Interview Questions