1.34.0[−][src]Struct cotton::prelude::__std_iter::Successors
An new iterator where each successive item is computed based on the preceding one.
This struct
is created by the successors
function.
See its documentation for more.
Trait Implementations
impl<T, F> FusedIterator for Successors<T, F> where
F: FnMut(&T) -> Option<T>,
[src]
F: FnMut(&T) -> Option<T>,
impl<T, F> Clone for Successors<T, F> where
F: Clone,
T: Clone,
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F: Clone,
T: Clone,
ⓘImportant traits for Successors<T, F>fn clone(&self) -> Successors<T, F>
[src]
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl<T, F> Debug for Successors<T, F> where
T: Debug,
[src]
T: Debug,
impl<T, F> Iterator for Successors<T, F> where
F: FnMut(&T) -> Option<T>,
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F: FnMut(&T) -> Option<T>,
type Item = T
The type of the elements being iterated over.
fn next(&mut self) -> Option<<Successors<T, F> as Iterator>::Item>
[src]
fn size_hint(&self) -> (usize, Option<usize>)
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fn count(self) -> usize
1.0.0[src]
Consumes the iterator, counting the number of iterations and returning it. Read more
fn last(self) -> Option<Self::Item>
1.0.0[src]
Consumes the iterator, returning the last element. Read more
fn nth(&mut self, n: usize) -> Option<Self::Item>
1.0.0[src]
Returns the n
th element of the iterator. Read more
ⓘImportant traits for StepBy<I>fn step_by(self, step: usize) -> StepBy<Self>
1.28.0[src]
Creates an iterator starting at the same point, but stepping by the given amount at each iteration. Read more
ⓘImportant traits for Chain<A, B>fn chain<U>(self, other: U) -> Chain<Self, <U as IntoIterator>::IntoIter> where
U: IntoIterator<Item = Self::Item>,
1.0.0[src]
U: IntoIterator<Item = Self::Item>,
Takes two iterators and creates a new iterator over both in sequence. Read more
ⓘImportant traits for Zip<A, B>fn zip<U>(self, other: U) -> Zip<Self, <U as IntoIterator>::IntoIter> where
U: IntoIterator,
1.0.0[src]
U: IntoIterator,
'Zips up' two iterators into a single iterator of pairs. Read more
ⓘImportant traits for Map<I, F>fn map<B, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> B,
1.0.0[src]
F: FnMut(Self::Item) -> B,
Takes a closure and creates an iterator which calls that closure on each element. Read more
fn for_each<F>(self, f: F) where
F: FnMut(Self::Item),
1.21.0[src]
F: FnMut(Self::Item),
Calls a closure on each element of an iterator. Read more
ⓘImportant traits for Filter<I, P>fn filter<P>(self, predicate: P) -> Filter<Self, P> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
Creates an iterator which uses a closure to determine if an element should be yielded. Read more
ⓘImportant traits for FilterMap<I, F>fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F> where
F: FnMut(Self::Item) -> Option<B>,
1.0.0[src]
F: FnMut(Self::Item) -> Option<B>,
Creates an iterator that both filters and maps. Read more
ⓘImportant traits for Enumerate<I>fn enumerate(self) -> Enumerate<Self>
1.0.0[src]
Creates an iterator which gives the current iteration count as well as the next value. Read more
ⓘImportant traits for Peekable<I>fn peekable(self) -> Peekable<Self>
1.0.0[src]
Creates an iterator which can use peek
to look at the next element of the iterator without consuming it. Read more
ⓘImportant traits for SkipWhile<I, P>fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
Creates an iterator that [skip
]s elements based on a predicate. Read more
ⓘImportant traits for TakeWhile<I, P>fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
Creates an iterator that yields elements based on a predicate. Read more
ⓘImportant traits for Skip<I>fn skip(self, n: usize) -> Skip<Self>
1.0.0[src]
Creates an iterator that skips the first n
elements. Read more
ⓘImportant traits for Take<I>fn take(self, n: usize) -> Take<Self>
1.0.0[src]
Creates an iterator that yields its first n
elements. Read more
ⓘImportant traits for Scan<I, St, F>fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F> where
F: FnMut(&mut St, Self::Item) -> Option<B>,
1.0.0[src]
F: FnMut(&mut St, Self::Item) -> Option<B>,
An iterator adaptor similar to [fold
] that holds internal state and produces a new iterator. Read more
ⓘImportant traits for FlatMap<I, U, F>fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: IntoIterator,
1.0.0[src]
F: FnMut(Self::Item) -> U,
U: IntoIterator,
Creates an iterator that works like map, but flattens nested structure. Read more
ⓘImportant traits for Flatten<I>fn flatten(self) -> Flatten<Self> where
Self::Item: IntoIterator,
1.29.0[src]
Self::Item: IntoIterator,
Creates an iterator that flattens nested structure. Read more
ⓘImportant traits for Fuse<I>fn fuse(self) -> Fuse<Self>
1.0.0[src]
Creates an iterator which ends after the first [None
]. Read more
ⓘImportant traits for Inspect<I, F>fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
1.0.0[src]
F: FnMut(&Self::Item),
Do something with each element of an iterator, passing the value on. Read more
ⓘImportant traits for &'_ mut Rfn by_ref(&mut self) -> &mut Self
1.0.0[src]
Borrows an iterator, rather than consuming it. Read more
#[must_use = "if you really need to exhaust the iterator, consider `.for_each(drop)` instead"]
fn collect<B>(self) -> B where
B: FromIterator<Self::Item>,
1.0.0[src]
B: FromIterator<Self::Item>,
Transforms an iterator into a collection. Read more
fn partition<B, F>(self, f: F) -> (B, B) where
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
1.0.0[src]
B: Default + Extend<Self::Item>,
F: FnMut(&Self::Item) -> bool,
Consumes an iterator, creating two collections from it. Read more
fn try_fold<B, F, R>(&mut self, init: B, f: F) -> R where
F: FnMut(B, Self::Item) -> R,
R: Try<Ok = B>,
1.27.0[src]
F: FnMut(B, Self::Item) -> R,
R: Try<Ok = B>,
An iterator method that applies a function as long as it returns successfully, producing a single, final value. Read more
fn try_for_each<F, R>(&mut self, f: F) -> R where
F: FnMut(Self::Item) -> R,
R: Try<Ok = ()>,
1.27.0[src]
F: FnMut(Self::Item) -> R,
R: Try<Ok = ()>,
An iterator method that applies a fallible function to each item in the iterator, stopping at the first error and returning that error. Read more
fn fold<B, F>(self, init: B, f: F) -> B where
F: FnMut(B, Self::Item) -> B,
1.0.0[src]
F: FnMut(B, Self::Item) -> B,
An iterator method that applies a function, producing a single, final value. Read more
fn all<F>(&mut self, f: F) -> bool where
F: FnMut(Self::Item) -> bool,
1.0.0[src]
F: FnMut(Self::Item) -> bool,
Tests if every element of the iterator matches a predicate. Read more
fn any<F>(&mut self, f: F) -> bool where
F: FnMut(Self::Item) -> bool,
1.0.0[src]
F: FnMut(Self::Item) -> bool,
Tests if any element of the iterator matches a predicate. Read more
fn find<P>(&mut self, predicate: P) -> Option<Self::Item> where
P: FnMut(&Self::Item) -> bool,
1.0.0[src]
P: FnMut(&Self::Item) -> bool,
Searches for an element of an iterator that satisfies a predicate. Read more
fn find_map<B, F>(&mut self, f: F) -> Option<B> where
F: FnMut(Self::Item) -> Option<B>,
1.30.0[src]
F: FnMut(Self::Item) -> Option<B>,
Applies function to the elements of iterator and returns the first non-none result. Read more
fn position<P>(&mut self, predicate: P) -> Option<usize> where
P: FnMut(Self::Item) -> bool,
1.0.0[src]
P: FnMut(Self::Item) -> bool,
Searches for an element in an iterator, returning its index. Read more
fn rposition<P>(&mut self, predicate: P) -> Option<usize> where
P: FnMut(Self::Item) -> bool,
Self: ExactSizeIterator + DoubleEndedIterator,
1.0.0[src]
P: FnMut(Self::Item) -> bool,
Self: ExactSizeIterator + DoubleEndedIterator,
Searches for an element in an iterator from the right, returning its index. Read more
fn max(self) -> Option<Self::Item> where
Self::Item: Ord,
1.0.0[src]
Self::Item: Ord,
Returns the maximum element of an iterator. Read more
fn min(self) -> Option<Self::Item> where
Self::Item: Ord,
1.0.0[src]
Self::Item: Ord,
Returns the minimum element of an iterator. Read more
fn max_by_key<B, F>(self, f: F) -> Option<Self::Item> where
B: Ord,
F: FnMut(&Self::Item) -> B,
1.6.0[src]
B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the maximum value from the specified function. Read more
fn max_by<F>(self, compare: F) -> Option<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.15.0[src]
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the maximum value with respect to the specified comparison function. Read more
fn min_by_key<B, F>(self, f: F) -> Option<Self::Item> where
B: Ord,
F: FnMut(&Self::Item) -> B,
1.6.0[src]
B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the minimum value from the specified function. Read more
fn min_by<F>(self, compare: F) -> Option<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
1.15.0[src]
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the minimum value with respect to the specified comparison function. Read more
ⓘImportant traits for Rev<I>fn rev(self) -> Rev<Self> where
Self: DoubleEndedIterator,
1.0.0[src]
Self: DoubleEndedIterator,
Reverses an iterator's direction. Read more
fn unzip<A, B, FromA, FromB>(self) -> (FromA, FromB) where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Iterator<Item = (A, B)>,
1.0.0[src]
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Iterator<Item = (A, B)>,
Converts an iterator of pairs into a pair of containers. Read more
ⓘImportant traits for Copied<I>fn copied<'a, T>(self) -> Copied<Self> where
Self: Iterator<Item = &'a T>,
T: 'a + Copy,
1.36.0[src]
Self: Iterator<Item = &'a T>,
T: 'a + Copy,
Creates an iterator which copies all of its elements. Read more
ⓘImportant traits for Cloned<I>fn cloned<'a, T>(self) -> Cloned<Self> where
Self: Iterator<Item = &'a T>,
T: 'a + Clone,
1.0.0[src]
Self: Iterator<Item = &'a T>,
T: 'a + Clone,
Creates an iterator which [clone
]s all of its elements. Read more
ⓘImportant traits for Cycle<I>fn cycle(self) -> Cycle<Self> where
Self: Clone,
1.0.0[src]
Self: Clone,
Repeats an iterator endlessly. Read more
fn sum<S>(self) -> S where
S: Sum<Self::Item>,
1.11.0[src]
S: Sum<Self::Item>,
Sums the elements of an iterator. Read more
fn product<P>(self) -> P where
P: Product<Self::Item>,
1.11.0[src]
P: Product<Self::Item>,
Iterates over the entire iterator, multiplying all the elements Read more
fn cmp<I>(self, other: I) -> Ordering where
I: IntoIterator<Item = Self::Item>,
Self::Item: Ord,
1.5.0[src]
I: IntoIterator<Item = Self::Item>,
Self::Item: Ord,
Lexicographically compares the elements of this Iterator
with those of another. Read more
fn partial_cmp<I>(self, other: I) -> Option<Ordering> where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Lexicographically compares the elements of this Iterator
with those of another. Read more
fn eq<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator
are equal to those of another. Read more
fn ne<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialEq<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator
are unequal to those of another. Read more
fn lt<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator
are lexicographically less than those of another. Read more
fn le<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator
are lexicographically less or equal to those of another. Read more
fn gt<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator
are lexicographically greater than those of another. Read more
fn ge<I>(self, other: I) -> bool where
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
1.5.0[src]
I: IntoIterator,
Self::Item: PartialOrd<<I as IntoIterator>::Item>,
Determines if the elements of this Iterator
are lexicographically greater than or equal to those of another. Read more
fn is_sorted(self) -> bool where
Self::Item: PartialOrd<Self::Item>,
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Self::Item: PartialOrd<Self::Item>,
🔬 This is a nightly-only experimental API. (is_sorted
)
new API
Checks if the elements of this iterator are sorted. Read more
fn is_sorted_by<F>(self, compare: F) -> bool where
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
[src]
F: FnMut(&Self::Item, &Self::Item) -> Option<Ordering>,
🔬 This is a nightly-only experimental API. (is_sorted
)
new API
Checks if the elements of this iterator are sorted using the given comparator function. Read more
fn is_sorted_by_key<F, K>(self, f: F) -> bool where
F: FnMut(&Self::Item) -> K,
K: PartialOrd<K>,
[src]
F: FnMut(&Self::Item) -> K,
K: PartialOrd<K>,
🔬 This is a nightly-only experimental API. (is_sorted
)
new API
Checks if the elements of this iterator are sorted using the given key extraction function. Read more
Auto Trait Implementations
impl<T, F> Send for Successors<T, F> where
F: Send,
T: Send,
F: Send,
T: Send,
impl<T, F> Sync for Successors<T, F> where
F: Sync,
T: Sync,
F: Sync,
T: Sync,
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T> From for T
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impl<I> IntoIterator for I where
I: Iterator,
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I: Iterator,
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?
fn into_iter(self) -> I
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impl<T, U> Into for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryFrom for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T> Borrow for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut for T where
T: ?Sized,
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T: ?Sized,
ⓘImportant traits for &'_ mut Rfn borrow_mut(&mut self) -> &mut T
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<I, O, E, M> FailedToIter for I where
E: Into<Problem>,
I: Iterator<Item = Result<O, E>>,
M: Display,
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E: Into<Problem>,
I: Iterator<Item = Result<O, E>>,
M: Display,
ⓘImportant traits for ProblemIter<I, M>fn or_failed_to(self, message: M) -> ProblemIter<I, M>
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impl<I, O, E> OkOrLogIter for I where
E: Into<Problem>,
I: Iterator<Item = Result<O, E>>,
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E: Into<Problem>,
I: Iterator<Item = Result<O, E>>,
ⓘImportant traits for ProblemWarnLoggingIter<I>fn ok_or_log_warn(self) -> ProblemWarnLoggingIter<I>
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ⓘImportant traits for ProblemErrorLoggingIter<I>fn ok_or_log_error(self) -> ProblemErrorLoggingIter<I>
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impl<T> Itertools for T where
T: Iterator + ?Sized,
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T: Iterator + ?Sized,
ⓘImportant traits for Interleave<I, J>fn interleave<J>(
self,
other: J
) -> Interleave<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator<Item = Self::Item>,
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self,
other: J
) -> Interleave<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator<Item = Self::Item>,
Alternate elements from two iterators until both have run out. Read more
ⓘImportant traits for InterleaveShortest<I, J>fn interleave_shortest<J>(
self,
other: J
) -> InterleaveShortest<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator<Item = Self::Item>,
[src]
self,
other: J
) -> InterleaveShortest<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator<Item = Self::Item>,
Alternate elements from two iterators until at least one of them has run out. Read more
ⓘImportant traits for Intersperse<I>fn intersperse(self, element: Self::Item) -> Intersperse<Self> where
Self::Item: Clone,
[src]
Self::Item: Clone,
An iterator adaptor to insert a particular value between each element of the adapted iterator. Read more
ⓘImportant traits for ZipLongest<T, U>fn zip_longest<J>(
self,
other: J
) -> ZipLongest<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator,
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self,
other: J
) -> ZipLongest<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator,
Create an iterator which iterates over both this and the specified iterator simultaneously, yielding pairs of two optional elements. Read more
ⓘImportant traits for ZipEq<I, J>fn zip_eq<J>(self, other: J) -> ZipEq<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator,
[src]
J: IntoIterator,
Create an iterator which iterates over both this and the specified iterator simultaneously, yielding pairs of elements. Read more
ⓘImportant traits for Batching<I, F>fn batching<B, F>(self, f: F) -> Batching<Self, F> where
F: FnMut(&mut Self) -> Option<B>,
[src]
F: FnMut(&mut Self) -> Option<B>,
A “meta iterator adaptor”. Its closure receives a reference to the iterator and may pick off as many elements as it likes, to produce the next iterator element. Read more
fn group_by<K, F>(self, key: F) -> GroupBy<K, Self, F> where
F: FnMut(&Self::Item) -> K,
K: PartialEq<K>,
[src]
F: FnMut(&Self::Item) -> K,
K: PartialEq<K>,
Return an iterable that can group iterator elements. Consecutive elements that map to the same key (“runs”), are assigned to the same group. Read more
fn chunks(self, size: usize) -> IntoChunks<Self>
[src]
Return an iterable that can chunk the iterator. Read more
ⓘImportant traits for TupleWindows<I, T>fn tuple_windows<T>(self) -> TupleWindows<Self, T> where
Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
<T as TupleCollect>::Item: Clone,
[src]
Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
<T as TupleCollect>::Item: Clone,
Return an iterator over all contiguous windows producing tuples of a specific size (up to 4). Read more
ⓘImportant traits for Tuples<I, T>fn tuples<T>(self) -> Tuples<Self, T> where
Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
[src]
Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
Return an iterator that groups the items in tuples of a specific size (up to 4). Read more
fn tee(self) -> (Tee<Self>, Tee<Self>) where
Self::Item: Clone,
[src]
Self::Item: Clone,
Split into an iterator pair that both yield all elements from the original iterator. Read more
ⓘImportant traits for Step<I>fn step(self, n: usize) -> Step<Self>
[src]
Use std .step_by() instead
Return an iterator adaptor that steps n
elements in the base iterator for each iteration. Read more
ⓘImportant traits for MapInto<I, R>fn map_into<R>(self) -> MapInto<Self, R> where
Self::Item: Into<R>,
[src]
Self::Item: Into<R>,
Convert each item of the iterator using the Into
trait. Read more
ⓘImportant traits for MapResults<I, F>fn map_results<F, T, U, E>(self, f: F) -> MapResults<Self, F> where
F: FnMut(T) -> U,
Self: Iterator<Item = Result<T, E>>,
[src]
F: FnMut(T) -> U,
Self: Iterator<Item = Result<T, E>>,
Return an iterator adaptor that applies the provided closure to every Result::Ok
value. Result::Err
values are unchanged. Read more
ⓘImportant traits for Merge<I, J>fn merge<J>(self, other: J) -> Merge<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator<Item = Self::Item>,
Self::Item: PartialOrd<Self::Item>,
[src]
J: IntoIterator<Item = Self::Item>,
Self::Item: PartialOrd<Self::Item>,
Return an iterator adaptor that merges the two base iterators in ascending order. If both base iterators are sorted (ascending), the result is sorted. Read more
ⓘImportant traits for MergeBy<I, J, F>fn merge_by<J, F>(
self,
other: J,
is_first: F
) -> MergeBy<Self, <J as IntoIterator>::IntoIter, F> where
F: FnMut(&Self::Item, &Self::Item) -> bool,
J: IntoIterator<Item = Self::Item>,
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self,
other: J,
is_first: F
) -> MergeBy<Self, <J as IntoIterator>::IntoIter, F> where
F: FnMut(&Self::Item, &Self::Item) -> bool,
J: IntoIterator<Item = Self::Item>,
Return an iterator adaptor that merges the two base iterators in order. This is much like .merge()
but allows for a custom ordering. Read more
ⓘImportant traits for MergeJoinBy<I, J, F>fn merge_join_by<J, F>(
self,
other: J,
cmp_fn: F
) -> MergeJoinBy<Self, <J as IntoIterator>::IntoIter, F> where
F: FnMut(&Self::Item, &<J as IntoIterator>::Item) -> Ordering,
J: IntoIterator,
[src]
self,
other: J,
cmp_fn: F
) -> MergeJoinBy<Self, <J as IntoIterator>::IntoIter, F> where
F: FnMut(&Self::Item, &<J as IntoIterator>::Item) -> Ordering,
J: IntoIterator,
Create an iterator that merges items from both this and the specified iterator in ascending order. Read more
ⓘImportant traits for KMerge<I>fn kmerge(self) -> KMerge<<Self::Item as IntoIterator>::IntoIter> where
Self::Item: IntoIterator,
<Self::Item as IntoIterator>::Item: PartialOrd<<Self::Item as IntoIterator>::Item>,
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Self::Item: IntoIterator,
<Self::Item as IntoIterator>::Item: PartialOrd<<Self::Item as IntoIterator>::Item>,
Return an iterator adaptor that flattens an iterator of iterators by merging them in ascending order. Read more
ⓘImportant traits for KMergeBy<I, F>fn kmerge_by<F>(
self,
first: F
) -> KMergeBy<<Self::Item as IntoIterator>::IntoIter, F> where
F: FnMut(&<Self::Item as IntoIterator>::Item, &<Self::Item as IntoIterator>::Item) -> bool,
Self::Item: IntoIterator,
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self,
first: F
) -> KMergeBy<<Self::Item as IntoIterator>::IntoIter, F> where
F: FnMut(&<Self::Item as IntoIterator>::Item, &<Self::Item as IntoIterator>::Item) -> bool,
Self::Item: IntoIterator,
Return an iterator adaptor that flattens an iterator of iterators by merging them according to the given closure. Read more
ⓘImportant traits for Product<I, J>fn cartesian_product<J>(
self,
other: J
) -> Product<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator,
Self::Item: Clone,
<J as IntoIterator>::IntoIter: Clone,
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self,
other: J
) -> Product<Self, <J as IntoIterator>::IntoIter> where
J: IntoIterator,
Self::Item: Clone,
<J as IntoIterator>::IntoIter: Clone,
Return an iterator adaptor that iterates over the cartesian product of the element sets of two iterators self
and J
. Read more
ⓘImportant traits for MultiProduct<I>fn multi_cartesian_product(
self
) -> MultiProduct<<Self::Item as IntoIterator>::IntoIter> where
Self: Iterator,
Self::Item: IntoIterator,
<Self::Item as IntoIterator>::IntoIter: Clone,
<Self::Item as IntoIterator>::Item: Clone,
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self
) -> MultiProduct<<Self::Item as IntoIterator>::IntoIter> where
Self: Iterator,
Self::Item: IntoIterator,
<Self::Item as IntoIterator>::IntoIter: Clone,
<Self::Item as IntoIterator>::Item: Clone,
Return an iterator adaptor that iterates over the cartesian product of all subiterators returned by meta-iterator self
. Read more
ⓘImportant traits for Coalesce<I, F>fn coalesce<F>(self, f: F) -> Coalesce<Self, F> where
F: FnMut(Self::Item, Self::Item) -> Result<Self::Item, (Self::Item, Self::Item)>,
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F: FnMut(Self::Item, Self::Item) -> Result<Self::Item, (Self::Item, Self::Item)>,
Return an iterator adaptor that uses the passed-in closure to optionally merge together consecutive elements. Read more
ⓘImportant traits for Dedup<I>fn dedup(self) -> Dedup<Self> where
Self::Item: PartialEq<Self::Item>,
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Self::Item: PartialEq<Self::Item>,
Remove duplicates from sections of consecutive identical elements. If the iterator is sorted, all elements will be unique. Read more
ⓘImportant traits for Unique<I>fn unique(self) -> Unique<Self> where
Self::Item: Clone,
Self::Item: Eq,
Self::Item: Hash,
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Self::Item: Clone,
Self::Item: Eq,
Self::Item: Hash,
Return an iterator adaptor that filters out elements that have already been produced once during the iteration. Duplicates are detected using hash and equality. Read more
ⓘImportant traits for UniqueBy<I, V, F>fn unique_by<V, F>(self, f: F) -> UniqueBy<Self, V, F> where
F: FnMut(&Self::Item) -> V,
V: Eq + Hash,
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F: FnMut(&Self::Item) -> V,
V: Eq + Hash,
Return an iterator adaptor that filters out elements that have already been produced once during the iteration. Read more
ⓘImportant traits for PeekingTakeWhile<'a, I, F>fn peeking_take_while<F>(&mut self, accept: F) -> PeekingTakeWhile<Self, F> where
F: FnMut(&Self::Item) -> bool,
Self: PeekingNext,
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F: FnMut(&Self::Item) -> bool,
Self: PeekingNext,
Return an iterator adaptor that borrows from this iterator and takes items while the closure accept
returns true
. Read more
ⓘImportant traits for TakeWhileRef<'a, I, F>fn take_while_ref<F>(&mut self, accept: F) -> TakeWhileRef<Self, F> where
F: FnMut(&Self::Item) -> bool,
Self: Clone,
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F: FnMut(&Self::Item) -> bool,
Self: Clone,
Return an iterator adaptor that borrows from a Clone
-able iterator to only pick off elements while the predicate accept
returns true
. Read more
ⓘImportant traits for WhileSome<I>fn while_some<A>(self) -> WhileSome<Self> where
Self: Iterator<Item = Option<A>>,
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Self: Iterator<Item = Option<A>>,
Return an iterator adaptor that filters Option<A>
iterator elements and produces A
. Stops on the first None
encountered. Read more
ⓘImportant traits for TupleCombinations<I, T>fn tuple_combinations<T>(self) -> TupleCombinations<Self, T> where
Self: Clone,
T: HasCombination<Self>,
Self::Item: Clone,
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Self: Clone,
T: HasCombination<Self>,
Self::Item: Clone,
Return an iterator adaptor that iterates over the combinations of the elements from an iterator. Read more
ⓘImportant traits for Combinations<I>fn combinations(self, n: usize) -> Combinations<Self> where
Self::Item: Clone,
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Self::Item: Clone,
Return an iterator adaptor that iterates over the n
-length combinations of the elements from an iterator. Read more
ⓘImportant traits for PadUsing<I, F>fn pad_using<F>(self, min: usize, f: F) -> PadUsing<Self, F> where
F: FnMut(usize) -> Self::Item,
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F: FnMut(usize) -> Self::Item,
Return an iterator adaptor that pads the sequence to a minimum length of min
by filling missing elements using a closure f
. Read more
ⓘImportant traits for WithPosition<I>fn with_position(self) -> WithPosition<Self>
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Return an iterator adaptor that wraps each element in a Position
to ease special-case handling of the first or last elements. Read more
ⓘImportant traits for Positions<I, F>fn positions<P>(self, predicate: P) -> Positions<Self, P> where
P: FnMut(Self::Item) -> bool,
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P: FnMut(Self::Item) -> bool,
Return an iterator adaptor that yields the indices of all elements satisfying a predicate, counted from the start of the iterator. Read more
ⓘImportant traits for Update<I, F>fn update<F>(self, updater: F) -> Update<Self, F> where
F: FnMut(&mut Self::Item),
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F: FnMut(&mut Self::Item),
Return an iterator adaptor that applies a mutating function to each element before yielding it. Read more
fn next_tuple<T>(&mut self) -> Option<T> where
Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
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Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
Advances the iterator and returns the next items grouped in a tuple of a specific size (up to 4). Read more
fn collect_tuple<T>(self) -> Option<T> where
Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
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Self: Iterator<Item = <T as TupleCollect>::Item>,
T: TupleCollect,
Collects all items from the iterator into a tuple of a specific size (up to 4). Read more
fn find_position<P>(&mut self, pred: P) -> Option<(usize, Self::Item)> where
P: FnMut(&Self::Item) -> bool,
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P: FnMut(&Self::Item) -> bool,
Find the position and value of the first element satisfying a predicate. Read more
fn all_equal(&mut self) -> bool where
Self::Item: PartialEq<Self::Item>,
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Self::Item: PartialEq<Self::Item>,
Check whether all elements compare equal. Read more
fn dropping(self, n: usize) -> Self
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Consume the first n
elements from the iterator eagerly, and return the same iterator again. Read more
fn dropping_back(self, n: usize) -> Self where
Self: DoubleEndedIterator,
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Self: DoubleEndedIterator,
Consume the last n
elements from the iterator eagerly, and return the same iterator again. Read more
fn foreach<F>(self, f: F) where
F: FnMut(Self::Item),
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F: FnMut(Self::Item),
Use .for_each() instead
Run the closure f
eagerly on each element of the iterator. Read more
fn concat(self) -> Self::Item where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
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Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
Combine all an iterator's elements into one element by using Extend
. Read more
fn collect_vec(self) -> Vec<Self::Item>
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.collect_vec()
is simply a type specialization of .collect()
, for convenience. Read more
fn set_from<'a, A, J>(&mut self, from: J) -> usize where
A: 'a,
J: IntoIterator<Item = A>,
Self: Iterator<Item = &'a mut A>,
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A: 'a,
J: IntoIterator<Item = A>,
Self: Iterator<Item = &'a mut A>,
Assign to each reference in self
from the from
iterator, stopping at the shortest of the two iterators. Read more
fn join(&mut self, sep: &str) -> String where
Self::Item: Display,
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Self::Item: Display,
Combine all iterator elements into one String, seperated by sep
. Read more
fn format(self, sep: &str) -> Format<Self>
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Format all iterator elements, separated by sep
. Read more
fn format_with<F>(self, sep: &str, format: F) -> FormatWith<Self, F> where
F: FnMut(Self::Item, &mut dyn FnMut(&dyn Display)) -> Result<(), Error>,
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F: FnMut(Self::Item, &mut dyn FnMut(&dyn Display)) -> Result<(), Error>,
Format all iterator elements, separated by sep
. Read more
fn fold_results<A, E, B, F>(&mut self, start: B, f: F) -> Result<B, E> where
F: FnMut(B, A) -> B,
Self: Iterator<Item = Result<A, E>>,
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F: FnMut(B, A) -> B,
Self: Iterator<Item = Result<A, E>>,
Fold Result
values from an iterator. Read more
fn fold_options<A, B, F>(&mut self, start: B, f: F) -> Option<B> where
F: FnMut(B, A) -> B,
Self: Iterator<Item = Option<A>>,
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F: FnMut(B, A) -> B,
Self: Iterator<Item = Option<A>>,
Fold Option
values from an iterator. Read more
fn fold1<F>(self, f: F) -> Option<Self::Item> where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
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F: FnMut(Self::Item, Self::Item) -> Self::Item,
Accumulator of the elements in the iterator. Read more
fn tree_fold1<F>(self, f: F) -> Option<Self::Item> where
F: FnMut(Self::Item, Self::Item) -> Self::Item,
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F: FnMut(Self::Item, Self::Item) -> Self::Item,
Accumulate the elements in the iterator in a tree-like manner. Read more
fn fold_while<B, F>(&mut self, init: B, f: F) -> FoldWhile<B> where
F: FnMut(B, Self::Item) -> FoldWhile<B>,
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F: FnMut(B, Self::Item) -> FoldWhile<B>,
Use .try_fold() instead
An iterator method that applies a function, producing a single, final value. Read more
ⓘImportant traits for IntoIter<T>fn sorted(self) -> IntoIter<Self::Item> where
Self::Item: Ord,
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Self::Item: Ord,
Sort all iterator elements into a new iterator in ascending order. Read more
ⓘImportant traits for IntoIter<T>fn sorted_by<F>(self, cmp: F) -> IntoIter<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
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F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Sort all iterator elements into a new iterator in ascending order. Read more
ⓘImportant traits for IntoIter<T>fn sorted_by_key<K, F>(self, f: F) -> IntoIter<Self::Item> where
F: FnMut(&Self::Item) -> K,
K: Ord,
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F: FnMut(&Self::Item) -> K,
K: Ord,
Sort all iterator elements into a new iterator in ascending order. Read more
fn partition_map<A, B, F, L, R>(self, predicate: F) -> (A, B) where
A: Default + Extend<L>,
B: Default + Extend<R>,
F: Fn(Self::Item) -> Either<L, R>,
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A: Default + Extend<L>,
B: Default + Extend<R>,
F: Fn(Self::Item) -> Either<L, R>,
Collect all iterator elements into one of two partitions. Unlike Iterator::partition
, each partition may have a distinct type. Read more
fn into_group_map<K, V>(self) -> HashMap<K, Vec<V>, RandomState> where
K: Hash + Eq,
Self: Iterator<Item = (K, V)>,
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K: Hash + Eq,
Self: Iterator<Item = (K, V)>,
Return a HashMap
of keys mapped to Vec
s of values. Keys and values are taken from (Key, Value)
tuple pairs yielded by the input iterator. Read more
fn minmax(self) -> MinMaxResult<Self::Item> where
Self::Item: PartialOrd<Self::Item>,
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Self::Item: PartialOrd<Self::Item>,
Return the minimum and maximum elements in the iterator. Read more
fn minmax_by_key<K, F>(self, key: F) -> MinMaxResult<Self::Item> where
F: FnMut(&Self::Item) -> K,
K: PartialOrd<K>,
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F: FnMut(&Self::Item) -> K,
K: PartialOrd<K>,
Return the minimum and maximum element of an iterator, as determined by the specified function. Read more
fn minmax_by<F>(self, compare: F) -> MinMaxResult<Self::Item> where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
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F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Return the minimum and maximum element of an iterator, as determined by the specified comparison function. Read more