Fundamentals of Object-Oriented Programming - C++ - Friends - Functions and Classes

The video tutorial explains the concept of data hiding in object-oriented programming and introduces friend functions as a way to access private data across different classes. It defines two classes, Class A and Class B, and demonstrates how to use friend functions to operate on their private data. The tutorial also explores an alternative approach using friend classes, showing how to modify the example to achieve the same result. The video includes practical examples and debugging tips to help understand the implementation of friend functions and classes.

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