C++ Standard Template Library in Practice - Overloading Stream Operators

The video tutorial explains how to create streamable types in C++ by overloading insertion and extraction operators. It demonstrates creating a student class with private members, constructors, and getter functions. The tutorial covers overloading operators to facilitate easy input and output of class objects. It provides an example of using the student class in the main function and discusses reading from and writing to streams, including file operations.

What is the significance of using mutable references in the extraction operator?

How do you declare an operator as a friend in a class?

How can you ensure that the output format of an object matches the input format when reading from files?