What are enums in Rust and how do they differ from other languages?

Enums in Rust: • Algebraic data types • Variants can hold data • Each variant can have different types • Pattern matching required • Memory efficient Example: enum Message { Quit, Move { x: i32, y: i32 }, Write(String), ChangeColor(i32, i32, i32), } fn process_message(msg: Message) { match msg { Message::Quit => println!("Quit"), Message::Move { x, y } => println!("Move to {}, {}", x, y), Message::Write(text) => println!("Text: {}", text), Message::ChangeColor(r, g, b) => println!("RGB: {}, {}, {}", r, g, b), } }