Shared via Rust Playground

playground.rs

struct ModGuard {              
    val: u32,              
    display: &'static str           
}

fn get_fizzbuzz_guards() -> Vec<ModGuard> {
    vec![
        ModGuard{val: 3, display: "Fizz"}, 
        ModGuard{val: 5, display: "Buzz"}]
}

fn generate_str(x: u32) -> String {
    let v = get_fizzbuzz_guards();
    let mut s = String::from("");
    for i in 0..v.len() {
        if (i % &v[i].val == 0) {
            s.push_str(v[i].display);
        }
    }
    if (s.len() == 0) {
        x.to_string()
    } else {
        s.to_string()
    }
}

fn doit()  {
    
    for i in 1..101 {
        println!("{}", generate_str(i));
    }
}

fn main() {

    let v = get_fizzbuzz_guards();

    for i in 0..v.len() {
        println!("{} {}", v[i].display, v[i].val);
    }
    doit() ;
    
}