# [−][src]Function std::cmp::max_by

    #[must_use]
    pub fn max_by<T, F>(v1: T, v2: T, compare: F) -> T where
        F: FnOnce(&T, &T) -> Ordering,

🔬 This is a nightly-only experimental API. (`cmp_min_max_by` #64460)

Returns the maximum of two values with respect to the specified comparison function.

Returns the second argument if the comparison determines them to be equal.

# Examples

    #![feature(cmp_min_max_by)]

    use std::cmp;

    assert_eq!(cmp::max_by(-2, 1, |x: &i32, y: &i32| x.abs().cmp(&y.abs())), -2);
    assert_eq!(cmp::max_by(-2, 2, |x: &i32, y: &i32| x.abs().cmp(&y.abs())), 2);

Run