C++ Interview Questions and Answers - FAQ

Is it possible to have Virtual Constructor? If yes, how? If not, Why not possible?

What is a friend class/function? Why would you need it?

In C++ I can declare a reference to a pointer. Can I not also declare a pointer to a reference? Why or How?

What is a reference?

In C++, how do I force derived classes to implement a virtual method from the base class?"

What is a pure virtual method (function)? What is the syntax for a pure virtual method? What is an abstract class?

What is a singleton? Write a simple implementation of a singleton.

Write a simple referenced-counted smart pointer class.

When and why should you avoid a multiple inheritance. What are the good examples of MI usage?

What books did you read recently?

Describe the role of envelope and letter classes.