#[derive(impartial_ord::ImpartialOrd, Ord, PartialEq, Eq, Default, Debug)]
struct MyStruct { foo: Bar, qux: Baz, }

assert_eq!(MyStruct::default().partial_cmp(&MyStruct::default()), Some(Ordering::Equal));

impl PartialOrd for MyStruct where Self: Ord {
    #[inline]
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(Ord::cmp(self, other))
    }
}