IGNOU BCS 31 2016 - How does a virtual function differ from a pure virtual function ? Also

Question

How does a virtual function differ from a pure virtual function ? Also give an example of a pure virtual function.

31 Jul 2018

Answer :

Word Count : 421

In C++, both virtual functions and pure virtual functions are integral components of polymorphism, a key feature of object-oriented programming. Here's an explanation of the differences between virtual functions and pure virtual functions, along with an example of a pure virtual function.

Virtual Function:
A virtual function in C++ is a function that is declared within a base class and is intended to be overridden by derived classes. When a derived class provides a specific implementation for a virtual function, it is said to override the base class's virtual function. The actual function that gets called is determined at runtime

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