Rust for C-Programmers

21.11 OR Patterns and Combined Guards

Use the | operator to combine multiple patterns in one arm:

#![allow(unused)]
fn main() {
fn check_char(c: char) {
    match c {
        'a' | 'A' => println!("Found an 'a'!"),
        _ => println!("Not an 'a'"),
    }
}
}

You can also mix guards and OR patterns. For example:

fn main() {
    let x = 4;
    let b = false;
    match x {
        // Matches if x is 4, 5, or 6, AND b == true
        4 | 5 | 6 if b => println!("yes"),
        _ => println!("no"),
    }
}