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

pub struct IterMut<'a, T: 'a> {
    list: &'a mut LinkedList<T>,
    head: Rawlink<Node<T>>,
    tail: Rawlink<Node<T>>,
    nelem: usize,
}

An iterator over mutable references to the items of a LinkedList.

Fields

list
head
tail
nelem

Methods

impl<'a, A> IterMut<'a, A>

fn insert_next_node(&mut self, ins_node: Box<Node<A>>)

impl<'a, A> IterMut<'a, A>

fn insert_next(&mut self, elt: A)

Unstable (linked_list_extras #27794)

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

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

Examples

#![feature(linked_list_extras)] extern crate collections; fn main() { 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]); } }
#![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]);
}

fn peek_next(&mut self) -> Option<&mut A>

Unstable (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)] extern crate collections; fn main() { 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); }
#![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);

Trait Implementations

impl<'a, A> Iterator for IterMut<'a, A>

type Item = &'a mut A

fn next(&mut self) -> Option<&'a mut A>

fn size_hint(&self) -> (usize, Option<usize>)

fn count(self) -> usize

fn last(self) -> Option<Self::Item>

fn nth(&mut self, n: usize) -> Option<Self::Item>

fn chain<U>(self, other: U) -> Chain<Self, U::IntoIter> where U: IntoIterator<Item=Self::Item>

fn zip<U>(self, other: U) -> Zip<Self, U::IntoIter> where U: IntoIterator

fn map<B, F>(self, f: F) -> Map<Self, F> where F: FnMut(Self::Item) -> B

fn filter<P>(self, predicate: P) -> Filter<Self, P> where P: FnMut(&Self::Item) -> bool

fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F> where F: FnMut(Self::Item) -> Option<B>

fn enumerate(self) -> Enumerate<Self>

fn peekable(self) -> Peekable<Self>

fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where P: FnMut(&Self::Item) -> bool

fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where P: FnMut(&Self::Item) -> bool

fn skip(self, n: usize) -> Skip<Self>

fn take(self, n: usize) -> Take<Self>

fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where F: FnMut(&mut St, Self::Item) -> Option<B>

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where U: IntoIterator, F: FnMut(Self::Item) -> U

fn fuse(self) -> Fuse<Self>

fn inspect<F>(self, f: F) -> Inspect<Self, F> where F: FnMut(&Self::Item) -> ()

fn by_ref(&mut self) -> &mut Self

fn collect<B>(self) -> B where B: FromIterator<Self::Item>

fn partition<B, F>(self, f: F) -> (B, B) where B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> bool

fn fold<B, F>(self, init: B, f: F) -> B where F: FnMut(B, Self::Item) -> B

fn all<F>(&mut self, f: F) -> bool where F: FnMut(Self::Item) -> bool

fn any<F>(&mut self, f: F) -> bool where F: FnMut(Self::Item) -> bool

fn find<P>(&mut self, predicate: P) -> Option<Self::Item> where P: FnMut(&Self::Item) -> bool

fn position<P>(&mut self, predicate: P) -> Option<usize> where P: FnMut(Self::Item) -> bool

fn rposition<P>(&mut self, predicate: P) -> Option<usize> where P: FnMut(Self::Item) -> bool, Self: ExactSizeIterator + DoubleEndedIterator

fn max(self) -> Option<Self::Item> where Self::Item: Ord

fn min(self) -> Option<Self::Item> where Self::Item: Ord

fn max_by<B, F>(self, f: F) -> Option<Self::Item> where B: Ord, F: FnMut(&Self::Item) -> B

fn max_by_key<B, F>(self, f: F) -> Option<Self::Item> where B: Ord, F: FnMut(&Self::Item) -> B

fn min_by<B, F>(self, f: F) -> Option<Self::Item> where B: Ord, F: FnMut(&Self::Item) -> B

fn min_by_key<B, F>(self, f: F) -> Option<Self::Item> where F: FnMut(&Self::Item) -> B, B: Ord

fn rev(self) -> Rev<Self> where Self: DoubleEndedIterator

fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB) where Self: Iterator<Item=(A, B)>, FromB: Default + Extend<B>, FromA: Default + Extend<A>

fn cloned<'a, T>(self) -> Cloned<Self> where Self: Iterator<Item=&'a T>, T: 'a + Clone

fn cycle(self) -> Cycle<Self> where Self: Clone

fn sum<S>(self) -> S where S: Add<Self::Item, Output=S> + Zero

fn product<P>(self) -> P where P: Mul<Self::Item, Output=P> + One

fn cmp<I>(self, other: I) -> Ordering where I: IntoIterator<Item=Self::Item>, Self::Item: Ord

fn partial_cmp<I>(self, other: I) -> Option<Ordering> where I: IntoIterator, Self::Item: PartialOrd<I::Item>

fn eq<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialEq<I::Item>

fn ne<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialEq<I::Item>

fn lt<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>

fn le<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>

fn gt<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>

fn ge<I>(self, other: I) -> bool where I: IntoIterator, Self::Item: PartialOrd<I::Item>

impl<'a, A> DoubleEndedIterator for IterMut<'a, A>

fn next_back(&mut self) -> Option<&'a mut A>

impl<'a, A> ExactSizeIterator for IterMut<'a, A>

fn len(&self) -> usize