Rust experiments

fmt.rs

use std::fmt;

struct Matrix(i32, i32, i32, i32);

impl fmt::Display for Matrix {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        let result = format!(
            "{0}, {1}, {2}, {3}",
            self.0, self.1, self.2, self.3
        );
        
        write!(f, "{}", result)
    }
}

fn main() {
    let m = Matrix(432,293,120,94);
    
    println!("{}", m);
}

tuples.rs

fn reverse(pair: (i32, &str)) -> (&str, i32) {
    let (a, b) = pair;
    
    (b, a)
}

fn main() {
    let my_favourite_tuple = (1u32,2u32,3u32,"hello",'a');
    
    // u cant just print dis
    // as the tuple doesn't implement the proper trait
    // println!("{}", my_favourite_tuple);
    
    // gotta extract elements
    println!("{}", my_favourite_tuple.3);
    
    let pair = (0, "sup");
    println!("pair: {:?}", pair);
    println!("reversed pair: {:?}", reverse(pair));
}