Virtual Function is declared with keyword 'virtual' at the declaration. Ex : virtual return_type function_name(function arguments); Pure-virtual functions need not be implemented in the base class, ...

In C++, a pure virtual function is a virtual function that you declare in a base class but don't define. A class containing a pure virtual function is called an abstract class, and you can't create ...

A pure virtual function in c++ is defined as a function that is only initialized but not defined. A pure virtual function in c++ must end with " =0 " when declared. This type of function is a concept ...