rust scope

rust_scope.rs

fn main() {
    struct Magic<T> { val: T }

    let i = "string";
    println!("i = {}", i);

    let Magic { val: mut i } = Magic { val: 5u };
    println!("i = {}", i);

    i = 7;
    println!("i = {}", i);

    let (i,) = (33.1_f32,);
    println!("i = {}", i);

    /* output:
    i = string
    i = 5
    i = 7
    i = 33.099998
    */
}