gistfile1.rs

fn main() {
    apply_s(str::to_bytes("foo"), "foo", |buf, txt| {
        buf == str::to_bytes(txt)
    });

    apply_g(str::to_bytes("bar"), "bar", |buf, txt| {
        buf == str::to_bytes(txt)
    });

}

fn apply_s(l: &[u8], r: &str, f: fn(&[u8], &str) -> bool) -> bool {
    f(l, r)
}

fn apply_g<L, R>(l: L, r: R, f: fn(L, R) -> bool) -> bool{
    f(l, r)
}