When should we use a struct as opposed to an enum?

Question

Structs and enums are similar to each other.

When would it be better to use a struct as opposed to an enum (or vice-versa)? Can someone give a clear example where usin

Answer 1

An Enum is a type with a constrained set of values.

enum Rainbow {
    Red,
    Orange,
    Yellow,
    Green,
    Blue,
    Indigo,
    Violet
}

let color = Red;

match color {
    Red => { handle Red case },
    // all the rest would go here
}

You can store data in the Enum if you need it.

enum ParseData {
    Whitespace,
    Token(String),
    Number(i32),
}

fn parse(input: String) -> Result;

A struct is a way to represent a thing.

struct Window {
    title: String,
    position: Position,
    visible: boolean,
}

Now you can make new Window objects that represent a window on your screen.