#![forbid(unsafe_code)]
pub mod prelude;
use crate::prelude::*;
fn main() {
let result: u64 = sub(1, 1);
assert_eq!(result, 0);
}
fn sub(left: u64, right: u64) -> u64 {
left - right
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn it_works() {
let result = sub(2, 2);
assert_eq!(result, 0);
}
}