Low-level details of objects

C++ does its best to support compatibility with the C language. While C structs are just a tool that allows us to aggregate data, C++ makes them equal to classes, allowing them to have constructors, virtual functions, inherit others structs, and so on. The only difference between a struct and a class is the default visibility modifier: public for structs and private for classes. There is usually no difference in using structs over classes or vice versa. OOP requires more than just a data aggregation. To fully understand OOP, let's find out how we would we incorporate the OOP paradigm if we have only simple structs providing data aggregation and nothing more.

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