Function max

pub fn max<T>(v1: T, v2: T) -> T
where
    T: Ord,

Available on crate feature std only.

Compares and returns the maximum of two values.

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

Internally uses an alias to Ord::max.

Examples

use std::cmp;

assert_eq!(cmp::max(1, 2), 2);
assert_eq!(cmp::max(2, 2), 2);

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::max(Equal("v1"), Equal("v2")).0, "v2");