// run-pass #![allow(non_camel_case_types)] #[derive(Copy, Clone, Debug)] enum foo { large, small, } impl PartialEq for foo { fn eq(&self, other: &foo) -> bool { ((*self) as usize) == ((*other) as usize) } fn ne(&self, other: &foo) -> bool { !(*self).eq(other) } } pub fn main() { let a = (1, 2, 3); let b = (1, 2, 3); assert_eq!(a, b); assert!((a != (1, 2, 4))); assert!((a < (1, 2, 4))); assert!((a <= (1, 2, 4))); assert!(((1, 2, 4) > a)); assert!(((1, 2, 4) >= a)); let x = foo::large; let y = foo::small; assert!((x != y)); assert_eq!(x, foo::large); assert!((x != foo::small)); }