Trait GetBackMut 

pub trait GetBackMut {
    type Item;

    // Required method
    fn get_back_mut(&mut self, index: usize) -> Option<&mut Self::Item>;
}

Safely retrieve a mutable reference from a collection with negative indexing.

Required Associated Types

type Item

Required Methods

fn get_back_mut(&mut self, index: usize) -> Option<&mut Self::Item>

Safely retrieve a mutable reference from a collection with negative indexing. Returns None if the index is larger than the length of the collection.

Implementations on Foreign Types

impl<T> GetBackMut for Vec<T>

type Item = T

fn get_back_mut(&mut self, index: usize) -> Option<&mut Self::Item>

Implementors