core::cmp::min_by - Rust
Description: API documentation for the Rust `min_by` fn in crate `core`.
Keywords: rust, rustlang, rust-lang, min_by

# [−][src]Function core::cmp::min_by

    pub fn min_by<T, F: FnOnce(&T, &T) -> Ordering>(v1: T, v2: T, compare: F) -> T

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

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

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

# Examples

    #![feature(cmp_min_max_by)]

    use std::cmp;

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