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gleam_stdlib src gleam order.gleam
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src/gleam/order.gleam

import gleam/pair
pub enum Order =
| Lt
| Eq
| Gt
;
pub fn reverse(order) {
case order {
| Lt -> Gt
| Eq -> Eq
| Gt -> Lt
}
}
pub fn to_int(order) {
case order {
| Lt -> -1
| Eq -> 0
| Gt -> 1
}
}
pub fn compare(a, b) {
case pair.Pair(a, b) {
| pair.Pair(Lt, Lt) -> Eq
| pair.Pair(Lt, _) -> Lt
| pair.Pair(Eq, Eq) -> Eq
| pair.Pair(Gt, Gt) -> Eq
| pair.Pair(Eq, Gt) -> Lt
| _ -> Gt
}
}
pub fn max(a, b) {
case pair.Pair(a, b) {
| pair.Pair(Gt, _) -> Gt
| pair.Pair(Eq, Lt) -> Eq
| _ -> b
}
}
pub fn min(a, b) {
case pair.Pair(a, b) {
| pair.Pair(Lt, _) -> Lt
| pair.Pair(Eq, Gt) -> Eq
| _ -> b
}
}