#[cfg(feature = "use_core")]
extern crate core;
#[macro_use]
extern crate derivative;
#[derive(Derivative)]
#[derivative(
PartialEq = "feature_allow_slow_enum",
Eq,
PartialOrd = "feature_allow_slow_enum",
Ord = "feature_allow_slow_enum"
)]
enum ES<T> {
ES1 { x: T },
ES2 { x: T, y: T },
}
pub fn main() {
let (es11, es12, es21, es22) = (
ES::ES1 { x: 1 },
ES::ES1 { x: 2 },
ES::ES2 { x: 1, y: 1 },
ES::ES2 { x: 1, y: 2 },
);
let ess = [es11, es12, es21, es22];
for (i, es1) in ess.iter().enumerate() {
for (j, es2) in ess.iter().enumerate() {
let ord = i.cmp(&j);
let eq = i == j;
let (lt, le) = (i < j, i <= j);
let (gt, ge) = (i > j, i >= j);
assert_eq!(*es1 == *es2, eq);
assert_eq!(*es1 != *es2, !eq);
assert_eq!(*es1 < *es2, lt);
assert_eq!(*es1 > *es2, gt);
assert_eq!(*es1 <= *es2, le);
assert_eq!(*es1 >= *es2, ge);
assert_eq!(es1.cmp(es2), ord);
}
}
}