Struct IterMut

pub struct IterMut<'a, K: 'a, V: 'a> { pub(in ::collections::hash::map) base: IterMut<'a, K, V> }

A mutable iterator over the entries of a HashMap.

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

Example

use std::collections::HashMap;

let mut map = HashMap::from([
    ("a", 1),
]);
let iter = map.iter_mut();

Fields

base: IterMut<'a, K, V>

Implementations

impl<'a, K, V> IterMut<'a, K, V>

fn iter(&self) -> Iter<'_, K, V>

Returns an iterator of references over the remaining items.

Trait Implementations

impl<'a, K, V> Iterator for IterMut<'a, K, V>

type Item = (&'a K, &'a mut V);
fn next(&mut self) -> Option<(&'a K, &'a mut V)>
fn size_hint(&self) -> (usize, Option<usize>)
fn count(self) -> usize
fn fold<B, F>(self, init: B, f: F) -> B
where
    Self: Sized,
    F: FnMut(B, Self::Item) -> B,

impl<K, V> Debug for IterMut<'_, K, V> where K: Debug, V: Debug,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<K, V> Default for IterMut<'_, K, V>

fn default() -> Self

impl<K, V> ExactSizeIterator for IterMut<'_, K, V>

fn len(&self) -> usize

impl<K, V> FusedIterator for IterMut<'_, K, V>

Auto Trait Implementations

impl<'a, K, V> !UnwindSafe for IterMut<'a, K, V>

impl<'a, K, V> Freeze for IterMut<'a, K, V> where IterMut<'a, K, V>: Freeze,

impl<'a, K, V> RefUnwindSafe for IterMut<'a, K, V> where IterMut<'a, K, V>: RefUnwindSafe,

impl<'a, K, V> Send for IterMut<'a, K, V> where IterMut<'a, K, V>: Send,

impl<'a, K, V> Sync for IterMut<'a, K, V> where IterMut<'a, K, V>: Sync,

impl<'a, K, V> Unpin for IterMut<'a, K, V> where IterMut<'a, K, V>: Unpin,

impl<'a, K, V> UnsafeUnpin for IterMut<'a, K, V> where IterMut<'a, K, V>: UnsafeUnpin,

Blanket Implementations

impl<I> IntoIterator for IterMut<'a, K, V> where I: Iterator,

type Item = <I as Iterator>::Item;
type IntoIter = I;
fn into_iter(self) -> I

impl<T> Any for IterMut<'a, K, V> where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for IterMut<'a, K, V> where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for IterMut<'a, K, V> where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for IterMut<'a, K, V>

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> SizeHint for IterMut<'a, K, V> where T: ?Sized,

fn lower_bound(&self) -> usize
fn upper_bound(&self) -> Option<usize>

impl<T> SizedTypeProperties for IterMut<'a, K, V>

impl<T, U> Into<U> for IterMut<'a, K, V> where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

impl<T, U> TryFrom<U> for IterMut<'a, K, V> where U: Into<T>,

type Error = Infallible;
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for IterMut<'a, K, V> where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error;
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>