Question

Which is the correct syntax of declaring a virtual function?

(a) virtual int func();

(b) virtual int func(){};

(c) inline virtual func();

(d) inline virtual func(){};

The question was posed to me in an online quiz.

This intriguing question comes from Inheritance topic in portion Class Hierarchies, Library & Containers of C++

Answer 1

The correct answer is (a) virtual int func();

To explain I would say: To make a function virtual function we just need to add virtual keyword at the starting of the function declaration.