In this module the basics of overloading operators were discussed.
You also have a grasp of how to build a non-native type with a consistent and complete interface.
In particular, you learned:

1. Why operator overloading is useful in C++
2. Which operators can be overloaded
3. How and when to use friend functions to access class members
4. How to overload unary operators
5. How to overload binary operators
6. How to overload input and output operators
7. How to overload the member pointer operator
8. How to overload the new and delete operators