Function core::cmp::minmax_by_key
source · pub fn minmax_by_key<T, F, K>(v1: T, v2: T, f: F) -> [T; 2]
🔬This is a nightly-only experimental API. (
cmp_minmax
#115939)Expand description
Returns minimum and maximum values with respect to the specified key function.
Returns [v1, v2]
if the comparison determines them to be equal.
§Examples
#![feature(cmp_minmax)]
use std::cmp;
assert_eq!(cmp::minmax_by_key(-2, 1, |x: &i32| x.abs()), [1, -2]);
assert_eq!(cmp::minmax_by_key(-2, 2, |x: &i32| x.abs()), [-2, 2]);
// You can destructure the result using array patterns
let [min, max] = cmp::minmax_by_key(-42, 17, |x: &i32| x.abs());
assert_eq!(min, 17);
assert_eq!(max, -42);
Run