[][src]Struct std::collections::hash_set::DrainFilter

pub struct DrainFilter<'a, K, F> where
    F: FnMut(&K) -> bool
{ /* fields omitted */ }
🔬 This is a nightly-only experimental API. (hash_drain_filter #59618)

A draining, filtering iterator over the items of a HashSet.

This struct is created by the drain_filter method on HashSet.

Examples

#![feature(hash_drain_filter)]

use std::collections::HashSet;

let mut a: HashSet<u32> = vec![1, 2, 3].into_iter().collect();

let mut drain_filtered = a.drain_filter(|v| v % 2 == 0);
Run

Trait Implementations

impl<'a, K, F> Debug for DrainFilter<'a, K, F> where
    F: FnMut(&K) -> bool
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impl<K, F, '_> FusedIterator for DrainFilter<'_, K, F> where
    F: FnMut(&K) -> bool
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impl<K, F, '_> Iterator for DrainFilter<'_, K, F> where
    F: FnMut(&K) -> bool
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type Item = K

The type of the elements being iterated over.

Auto Trait Implementations

impl<'a, K, F> RefUnwindSafe for DrainFilter<'a, K, F> where
    F: RefUnwindSafe,
    K: RefUnwindSafe

impl<'a, K, F> Send for DrainFilter<'a, K, F> where
    F: Send,
    K: Send

impl<'a, K, F> Sync for DrainFilter<'a, K, F> where
    F: Sync,
    K: Sync

impl<'a, K, F> Unpin for DrainFilter<'a, K, F> where
    F: Unpin

impl<'a, K, F> !UnwindSafe for DrainFilter<'a, K, F>

Blanket Implementations

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

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<I> IntoIterator for I where
    I: Iterator
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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> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.