When to use exceptions and when to use return codes

Use exceptions in exceptional conditions and use return codes to control program flow.

Section-Templates

1. What is template specialization?

Template specialization is the mechnaism to override the default template implementation to handle a particular type in a different way.

2. What is partial template specialization?

Using a template that specializes on one feature but still lets the class user choose other features as part of the template

Can you make member variable as default parameter of a member function?