extern crate num_traits;
use num_traits::Num;
use num::cast::AsPrimitive;

fn my_fn<T>(t: T, t2: i8) -> u32
    where T: Num + PartialEq + Copy + 'static,
    i8: AsPrimitive<T>,
{
    if t == t2.as_() {
        0
    } else {
        3
    }
}

#[test]
fn test_t() {
    let t: u32 = 32;
    assert_eq!(my_fn(t, 3), 3);
}