[][src]Struct std::vec::DrainFilter

pub struct DrainFilter<'a, T, F, A = Global> where
    A: AllocRef,
    F: FnMut(&mut T) -> bool
{ /* fields omitted */ }
🔬 This is a nightly-only experimental API. (drain_filter #43244)

recently added

An iterator which uses a closure to determine if an element should be removed.

This struct is created by Vec::drain_filter. See its documentation for more.

Example

#![feature(drain_filter)]

let mut v = vec![0, 1, 2];
let iter: std::vec::DrainFilter<_, _> = v.drain_filter(|x| *x % 2 == 0);
Run

Implementations

impl<'_, T, F, A> DrainFilter<'_, T, F, A> where
    A: AllocRef,
    F: FnMut(&mut T) -> bool
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pub fn alloc_ref(&self) -> &A

Notable traits for &'_ mut I

impl<'_, I> Iterator for &'_ mut I where
    I: Iterator + ?Sized
type Item = <I as Iterator>::Item;impl<'_, F> Future for &'_ mut F where
    F: Unpin + Future + ?Sized
type Output = <F as Future>::Output;impl<R: Read + ?Sized, '_> Read for &'_ mut Rimpl<W: Write + ?Sized, '_> Write for &'_ mut W
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🔬 This is a nightly-only experimental API. (allocator_api #32838)

Returns a reference to the underlying allocator.

Trait Implementations

impl<'a, T, F, A> Debug for DrainFilter<'a, T, F, A> where
    A: Debug + AllocRef,
    F: Debug + FnMut(&mut T) -> bool,
    T: Debug
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impl<'_, T, F, A> Drop for DrainFilter<'_, T, F, A> where
    A: AllocRef,
    F: FnMut(&mut T) -> bool
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impl<'_, T, F, A> Iterator for DrainFilter<'_, T, F, A> where
    A: AllocRef,
    F: FnMut(&mut T) -> bool
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type Item = T

The type of the elements being iterated over.

Auto Trait Implementations

impl<'a, T, F, A> RefUnwindSafe for DrainFilter<'a, T, F, A> where
    A: RefUnwindSafe,
    F: RefUnwindSafe,
    T: RefUnwindSafe

impl<'a, T, F, A> Send for DrainFilter<'a, T, F, A> where
    A: Send,
    F: Send,
    T: Send

impl<'a, T, F, A> Sync for DrainFilter<'a, T, F, A> where
    A: Sync,
    F: Sync,
    T: Sync

impl<'a, T, F, A> Unpin for DrainFilter<'a, T, F, A> where
    F: Unpin

impl<'a, T, F, A = Global> !UnwindSafe for DrainFilter<'a, T, F, A>

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.