Compares and sorts two values, returning minimum and maximum.

Returns [v1, v2] if the comparison determines them to be equal.

Examples

#![feature(cmp_minmax)]
use std::cmp;

assert_eq!(cmp::minmax(1, 2), [1, 2]);
assert_eq!(cmp::minmax(2, 1), [1, 2]);

// You can destructure the result using array patterns
let [min, max] = cmp::minmax(42, 17);
assert_eq!(min, 17);
assert_eq!(max, 42);

#![feature(cmp_minmax)]
use std::cmp::{self, Ordering};

#[derive(Eq)]
struct Equal(&'static str);

impl PartialEq for Equal {
    fn eq(&self, other: &Self) -> bool { true }
}
impl PartialOrd for Equal {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> { Some(Ordering::Equal) }
}
impl Ord for Equal {
    fn cmp(&self, other: &Self) -> Ordering { Ordering::Equal }
}

assert_eq!(cmp::minmax(Equal("v1"), Equal("v2")).map(|v| v.0), ["v1", "v2"]);