Trait alloc::iter::FusedIterator

pub trait FusedIterator: Iterator { }

An iterator that always continues to yield None when exhausted.

Calling next on a fused iterator that has returned None once is guaranteed to return None again. This trait should be implemented by all iterators that behave this way because it allows optimizing Iterator::fuse.

Note: In general, you should not use FusedIterator in generic bounds if you need a fused iterator. Instead, you should just call Iterator::fuse on the iterator. If the iterator is already fused, the additional Fuse wrapper will be a no-op with no performance penalty.

Implementations on Foreign Types

impl<'a, K, V> FusedIterator for Values<'a, K, V>

impl<'a, K, V> FusedIterator for ValuesMut<'a, K, V>

impl<'a, K, V> FusedIterator for Keys<'a, K, V>

impl<'a> FusedIterator for Components<'a>

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

impl<'a, K, V> FusedIterator for Drain<'a, K, V>

impl<K, V> FusedIterator for IntoIter<K, V>

impl<'a, K, V> FusedIterator for Iter<'a, K, V>

impl<'a> FusedIterator for Iter<'a>

impl<K> FusedIterator for IntoIter<K>

impl<'a, T, S> FusedIterator for Union<'a, T, S> where     S: BuildHasher,     T: Eq + Hash,

impl<'a, T, S> FusedIterator for Intersection<'a, T, S> where     S: BuildHasher,     T: Eq + Hash,

impl<'a, K> FusedIterator for Iter<'a, K>

impl<'a, T, S> FusedIterator for SymmetricDifference<'a, T, S> where     S: BuildHasher,     T: Eq + Hash,

impl<'a> FusedIterator for Ancestors<'a>

impl<'a, T, S> FusedIterator for Difference<'a, T, S> where     S: BuildHasher,     T: Eq + Hash,

impl<'a, K> FusedIterator for Drain<'a, K>

impl<'_, I> FusedIterator for &'_ mut I where     I: FusedIterator + ?Sized,

impl<K, V> FusedIterator for IntoIter<K, V>

impl<'a, K, V> FusedIterator for Keys<'a, K, V>

impl<'a, T> FusedIterator for Range<'a, T>

impl<'a, T> FusedIterator for Union<'a, T> where     T: Ord,

impl<'a, K, V> FusedIterator for Iter<'a, K, V>

impl<'a, T> FusedIterator for Iter<'a, T>

impl<I> FusedIterator for Box<I> where     I: FusedIterator + ?Sized,

impl<'a, T> FusedIterator for Iter<'a, T>

impl<'a, T> FusedIterator for Intersection<'a, T> where     T: Ord,

impl<'a, K, V> FusedIterator for Range<'a, K, V>

impl<T> FusedIterator for IntoIter<T>

impl<'a, T> FusedIterator for Iter<'a, T>

impl<'a, K, V> FusedIterator for Values<'a, K, V>

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

impl<'a, T> FusedIterator for Drain<'a, T> where     T: 'a,

impl<T> FusedIterator for IntoIter<T>

impl<'a> FusedIterator for Drain<'a>

impl<T> FusedIterator for IntoIter<T>

impl<'a, T> FusedIterator for Iter<'a, T>

impl<'a, T> FusedIterator for SymmetricDifference<'a, T> where     T: Ord,

impl<'a, T> FusedIterator for Difference<'a, T> where     T: Ord,

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

impl<'a, T> FusedIterator for Drain<'a, T>

impl<T> FusedIterator for IntoIter<T>

impl<T> FusedIterator for IntoIter<T>

impl<'a, K, V> FusedIterator for ValuesMut<'a, K, V>

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

impl<'a, T> FusedIterator for Drain<'a, T> where     T: 'a,

impl<'a, K, V> FusedIterator for RangeMut<'a, K, V>

Loading content...

Implementors

impl FusedIterator for alloc::ascii::EscapeDefault

impl FusedIterator for EscapeDebug

impl FusedIterator for alloc::char::EscapeDefault

impl FusedIterator for EscapeUnicode

impl FusedIterator for ToLowercase

impl FusedIterator for ToUppercase

impl<'_> FusedIterator for Bytes<'_>

impl<'_> FusedIterator for CharIndices<'_>

impl<'_> FusedIterator for Chars<'_>

impl<'_> FusedIterator for EncodeUtf16<'_>

impl<'_> FusedIterator for Lines<'_>

impl<'_> FusedIterator for LinesAny<'_>

impl<'_> FusedIterator for SplitAsciiWhitespace<'_>

impl<'_> FusedIterator for SplitWhitespace<'_>

impl<'_, A> FusedIterator for alloc::option::Iter<'_, A>

impl<'_, A> FusedIterator for alloc::option::IterMut<'_, A>

impl<'_, T> FusedIterator for alloc::result::Iter<'_, T>

impl<'_, T> FusedIterator for alloc::result::IterMut<'_, T>

impl<'_, T> FusedIterator for Chunks<'_, T>

impl<'_, T> FusedIterator for ChunksExact<'_, T>

impl<'_, T> FusedIterator for ChunksExactMut<'_, T>

impl<'_, T> FusedIterator for ChunksMut<'_, T>

impl<'_, T> FusedIterator for Windows<'_, T>

impl<'_, T, P> FusedIterator for alloc::slice::RSplit<'_, T, P> where     P: FnMut(&T) -> bool,

impl<'_, T, P> FusedIterator for RSplitMut<'_, T, P> where     P: FnMut(&T) -> bool,

impl<'_, T, P> FusedIterator for alloc::slice::Split<'_, T, P> where     P: FnMut(&T) -> bool,

impl<'_, T, P> FusedIterator for SplitMut<'_, T, P> where     P: FnMut(&T) -> bool,

impl<'a, I, T> FusedIterator for Cloned<I> where     I: FusedIterator<Item = &'a T>,     T: 'a + Clone,

impl<'a, I, T> FusedIterator for Copied<I> where     I: FusedIterator<Item = &'a T>,     T: 'a + Copy,

impl<'a, P> FusedIterator for MatchIndices<'a, P> where     P: Pattern<'a>,

impl<'a, P> FusedIterator for Matches<'a, P> where     P: Pattern<'a>,

impl<'a, P> FusedIterator for RMatchIndices<'a, P> where     P: Pattern<'a>,     <P as Pattern<'a>>::Searcher: ReverseSearcher<'a>,

impl<'a, P> FusedIterator for RMatches<'a, P> where     P: Pattern<'a>,     <P as Pattern<'a>>::Searcher: ReverseSearcher<'a>,

impl<'a, P> FusedIterator for alloc::str::RSplit<'a, P> where     P: Pattern<'a>,     <P as Pattern<'a>>::Searcher: ReverseSearcher<'a>,

impl<'a, P> FusedIterator for alloc::str::RSplitN<'a, P> where     P: Pattern<'a>,     <P as Pattern<'a>>::Searcher: ReverseSearcher<'a>,

impl<'a, P> FusedIterator for RSplitTerminator<'a, P> where     P: Pattern<'a>,     <P as Pattern<'a>>::Searcher: ReverseSearcher<'a>,

impl<'a, P> FusedIterator for alloc::str::Split<'a, P> where     P: Pattern<'a>,

impl<'a, P> FusedIterator for alloc::str::SplitN<'a, P> where     P: Pattern<'a>,

impl<'a, P> FusedIterator for SplitTerminator<'a, P> where     P: Pattern<'a>,

impl<'a, T> FusedIterator for alloc::slice::Iter<'a, T>

impl<'a, T> FusedIterator for alloc::slice::IterMut<'a, T>

impl<'a, T> FusedIterator for RChunks<'a, T>

impl<'a, T> FusedIterator for RChunksExact<'a, T>

impl<'a, T> FusedIterator for RChunksExactMut<'a, T>

impl<'a, T> FusedIterator for RChunksMut<'a, T>

impl<'a, T, P> FusedIterator for alloc::slice::RSplitN<'a, T, P> where     P: FnMut(&T) -> bool,

impl<'a, T, P> FusedIterator for RSplitNMut<'a, T, P> where     P: FnMut(&T) -> bool,

impl<'a, T, P> FusedIterator for alloc::slice::SplitN<'a, T, P> where     P: FnMut(&T) -> bool,

impl<'a, T, P> FusedIterator for SplitNMut<'a, T, P> where     P: FnMut(&T) -> bool,

impl<A> FusedIterator for Repeat<A> where     A: Clone,

impl<A> FusedIterator for alloc::ops::Range<A> where     A: Step,

impl<A> FusedIterator for RangeFrom<A> where     A: Step,

impl<A> FusedIterator for RangeInclusive<A> where     A: Step,

impl<A> FusedIterator for alloc::option::IntoIter<A>

impl<A, B> FusedIterator for Chain<A, B> where     A: FusedIterator,     B: FusedIterator<Item = <A as Iterator>::Item>,

impl<A, B> FusedIterator for Zip<A, B> where     A: FusedIterator,     B: FusedIterator,

impl<A, F> FusedIterator for RepeatWith<F> where     F: FnMut() -> A,

impl<B, I, F> FusedIterator for FilterMap<I, F> where     F: FnMut(<I as Iterator>::Item) -> Option<B>,     I: FusedIterator,

impl<B, I, F> FusedIterator for Map<I, F> where     F: FnMut(<I as Iterator>::Item) -> B,     I: FusedIterator,

impl<I> FusedIterator for Cycle<I> where     I: Clone + Iterator,

impl<I> FusedIterator for Enumerate<I> where     I: FusedIterator,

impl<I> FusedIterator for Fuse<I> where     I: Iterator,

impl<I> FusedIterator for Peekable<I> where     I: FusedIterator,

impl<I> FusedIterator for Rev<I> where     I: FusedIterator + DoubleEndedIterator,

impl<I> FusedIterator for Skip<I> where     I: FusedIterator,

impl<I> FusedIterator for Take<I> where     I: FusedIterator,

impl<I, F> FusedIterator for Inspect<I, F> where     F: FnMut(&<I as Iterator>::Item),     I: FusedIterator,

impl<I, P> FusedIterator for Filter<I, P> where     I: FusedIterator,     P: FnMut(&<I as Iterator>::Item) -> bool,

impl<I, P> FusedIterator for SkipWhile<I, P> where     I: FusedIterator,     P: FnMut(&<I as Iterator>::Item) -> bool,

impl<I, P> FusedIterator for TakeWhile<I, P> where     I: FusedIterator,     P: FnMut(&<I as Iterator>::Item) -> bool,

impl<I, U> FusedIterator for Flatten<I> where     I: FusedIterator,     U: Iterator,     <I as Iterator>::Item: IntoIterator,     <<I as Iterator>::Item as IntoIterator>::IntoIter == U,     <<I as Iterator>::Item as IntoIterator>::Item == <U as Iterator>::Item,

impl<I, U, F> FusedIterator for FlatMap<I, U, F> where     F: FnMut(<I as Iterator>::Item) -> U,     I: FusedIterator,     U: IntoIterator,

impl<T> FusedIterator for Empty<T>

impl<T> FusedIterator for Once<T>

impl<T> FusedIterator for alloc::result::IntoIter<T>

impl<T, F> FusedIterator for Successors<T, F> where     F: FnMut(&T) -> Option<T>,

Loading content...