If you know about C/C++ enumerations, you know that each element represents a value, and that you can use them to avoid remembering the proper integers from the set of possible values. They are not strongly typed, though, so you can mix different enumerations. And they can only store one integer.
Once again, Rust can do better, and we can create complex enumerations where we cannot only have strong typing (we won't mix enumerations) but we will even be able to have more than integers in enumerations. As you can see in the following Color enumeration, we can have inner data, and even attributes:
enum Color { Red, Blue, Green, Other { r: u32, g: u32, b: u32 },}
As you can see, in this case, the enumeration can have one ...
