Trait IterExt 

pub trait IterExt: Iterator + Sized {
    // Provided method
    fn max_by_maybe_key<F, K>(self, key_fn: F) -> Option<Self::Item>
       where F: Fn(&Self::Item) -> Option<K>,
             K: Ord { ... }
}

Provided Methods

fn max_by_maybe_key<F, K>(self, key_fn: F) -> Option<Self::Item>

where F: Fn(&Self::Item) -> Option<K>, K: Ord,

Allows the user to provide a fallible key

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> IterExt for T

where T: Iterator + Sized,