1.0.0[][src]Struct std::collections::linked_list::IterMut

pub struct IterMut<'a, T> where
    T: 'a, 
{ /* fields omitted */ }

A mutable iterator over the elements of a LinkedList.

This struct is created by the iter_mut method on LinkedList. See its documentation for more.

Methods

impl<'_, T> IterMut<'_, T>[src]

pub fn insert_next(&mut self, element: T)[src]

🔬 This is a nightly-only experimental API. (linked_list_extras #27794)

this is probably better handled by a cursor type -- we'll see

Inserts the given element just after the element most recently returned by .next(). The inserted element does not appear in the iteration.

Examples

#![feature(linked_list_extras)]

use std::collections::LinkedList;

let mut list: LinkedList<_> = vec![1, 3, 4].into_iter().collect();

{
    let mut it = list.iter_mut();
    assert_eq!(it.next().unwrap(), &1);
    // insert `2` after `1`
    it.insert_next(2);
}
{
    let vec: Vec<_> = list.into_iter().collect();
    assert_eq!(vec, [1, 2, 3, 4]);
}Run

pub fn peek_next(&mut self) -> Option<&mut T>[src]

🔬 This is a nightly-only experimental API. (linked_list_extras #27794)

this is probably better handled by a cursor type -- we'll see

Provides a reference to the next element, without changing the iterator.

Examples

#![feature(linked_list_extras)]

use std::collections::LinkedList;

let mut list: LinkedList<_> = vec![1, 2, 3].into_iter().collect();

let mut it = list.iter_mut();
assert_eq!(it.next().unwrap(), &1);
assert_eq!(it.peek_next().unwrap(), &2);
// We just peeked at 2, so it was not consumed from the iterator.
assert_eq!(it.next().unwrap(), &2);Run

Trait Implementations

impl<'_, T> Debug for IterMut<'_, T> where
    T: Debug
1.17.0[src]

impl<'_, T> FusedIterator for IterMut<'_, T>1.26.0[src]

impl<'a, T> DoubleEndedIterator for IterMut<'a, T>[src]

impl<'_, T> Sync for IterMut<'_, T> where
    T: Sync
[src]

impl<'a, T> Iterator for IterMut<'a, T>[src]

type Item = &'a mut T

The type of the elements being iterated over.

impl<'_, T> ExactSizeIterator for IterMut<'_, T>[src]

impl<'_, T> Send for IterMut<'_, T> where
    T: Send
[src]

Auto Trait Implementations

impl<'a, T> !UnwindSafe for IterMut<'a, T>

impl<'a, T> RefUnwindSafe for IterMut<'a, T> where
    T: RefUnwindSafe

impl<'a, T> Unpin for IterMut<'a, T>

Blanket Implementations

impl<T> From<T> for T[src]

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<I> IntoIterator for I where
    I: Iterator
[src]

type Item = <I as Iterator>::Item

The type of the elements being iterated over.

type IntoIter = I

Which kind of iterator are we turning this into?

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]