A match guard can be added to filter the arm.
>fn main() {
>let pair = (2, -2);
>// TODO ^ Try different values for `pair`
>println!("Tell me about {:?}", pair);
>match pair {
>(x, y) if x == y => println!("These are twins"),
>// The ^ `if condition` part is a guard
>(x, y) if x + y == 0 => println!("Antimatter, kaboom!"),
>(x, _) if x % 2 == 1 => println!("The first one is odd"),
>_ => println!("No correlation..."),
>}
>}
>הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Note that the compiler does not check arbitrary expressions for whether all possible conditions have been checked. Therefore, you must use the _ pattern at the end.
>fn main() {
>let number: u8 = 4;
>match number {
>i if i == 0 => println!("Zero"),
>i if i > 0 => println!("Greater than zero"),
>_ => println!("Fell through"), // This should not be possible to reach
>}
>}
>הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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