Classes, structs and namespaces

Structs and classes are similar in C++

A class/struct is a namespace "with some extra properties":

Class
- Defines a named type where members are private by default
- Typically used for user-defined types
- A namespace "with some extra properties":
Struct
- Defines a named type where members are public by default
- Typically used for aggregation of public data
- A namespace "with some extra properties":
Namespace
- A scope
- Named or unnamed
- There is a global namespace