Rust : How to use `match` to replace nested if/else

When solving errors4.rs exercise of rustlings, I initially used nested if/else. It helps with readability.

While the solution was correct, clippy suggested following:

help: consider rewriting the if chain with match: match value.cmp(&0) {...}

I had used match only with various possible values (mostly from Enum) and thus was unfamiliar with value.cmp(&0) approach.

So I asked Gemini for a working example. ¹

Here is the code is shared :

fn check_value(value: i32) {
    match value.cmp(&0) {
        std::cmp::Ordering::Less => {
            println!("{} is less than zero.", value);
        }
        std::cmp::Ordering::Equal => {
            println!("{} is exactly zero.", value);
        }
        std::cmp::Ordering::Greater => {
            println!("{} is greater than zero.", value);
        }
    }
}

fn main() {
    check_value(-5);
    check_value(0);
    check_value(10);
}

Moral of the story :

1. Always use clippy when developing
2. Read all the errors carefully. Chances are there is plenty of information.
3. Rust tooling is awesome! 😄