Function main

code/chapter04/num2str_rec.rs:15–20

()

}

fn main() {
    let num = 100; let sb = num2str_rec(num,2);
    let so = num2str_rec(num,8);
    let sh = num2str_rec(num,16);
    println!("{num} is b{sb}, o{so}, x{sh}");
}