Complete Modern C++ - Abstract Class

The video tutorial explains abstract classes and pure virtual functions using a document hierarchy example. It highlights the importance of overriding the serialize function in derived classes like XML to ensure correct data serialization. The tutorial addresses issues with default implementations and demonstrates how making a function pure virtual enforces implementation in child classes. Key concepts include abstract classes, pure virtual functions, and their role in creating interfaces.

What are the characteristics of an abstract class in terms of its members?

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How does the concept of pure virtual functions help in establishing contracts with clients?

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What is a pure virtual function and how is it defined in a class?

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