Trait fallible_iterator::FallibleIterator

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pub trait FallibleIterator {
    type Item;
    type Error;


Show 53 methods    // Required method
    fn next(&mut self) -> Result<Option<Self::Item>, Self::Error>;

    // Provided methods
    fn size_hint(&self) -> (usize, Option<usize>) { ... }
    fn count(self) -> Result<usize, Self::Error>
       where Self: Sized { ... }
    fn last(self) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized { ... }
    fn nth(&mut self, n: usize) -> Result<Option<Self::Item>, Self::Error> { ... }
    fn step_by(self, step: usize) -> StepBy<Self>
       where Self: Sized { ... }
    fn chain<I>(self, it: I) -> Chain<Self, I>
       where I: IntoFallibleIterator<Item = Self::Item, Error = Self::Error>,
             Self: Sized { ... }
    fn zip<I>(self, o: I) -> Zip<Self, I::IntoFallibleIter>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error> { ... }
    fn map<F, B>(self, f: F) -> Map<Self, F>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<B, Self::Error> { ... }
    fn for_each<F>(self, f: F) -> Result<(), Self::Error>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<(), Self::Error> { ... }
    fn filter<F>(self, f: F) -> Filter<Self, F>
       where Self: Sized,
             F: FnMut(&Self::Item) -> Result<bool, Self::Error> { ... }
    fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<Option<B>, Self::Error> { ... }
    fn enumerate(self) -> Enumerate<Self>
       where Self: Sized { ... }
    fn peekable(self) -> Peekable<Self>
       where Self: Sized { ... }
    fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>
       where Self: Sized,
             P: FnMut(&Self::Item) -> Result<bool, Self::Error> { ... }
    fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>
       where Self: Sized,
             P: FnMut(&Self::Item) -> Result<bool, Self::Error> { ... }
    fn skip(self, n: usize) -> Skip<Self>
       where Self: Sized { ... }
    fn take(self, n: usize) -> Take<Self>
       where Self: Sized { ... }
    fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>
       where Self: Sized,
             F: FnMut(&mut St, Self::Item) -> Result<Option<B>, Self::Error> { ... }
    fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>
       where Self: Sized,
             U: IntoFallibleIterator<Error = Self::Error>,
             F: FnMut(Self::Item) -> Result<U, Self::Error> { ... }
    fn flatten(self) -> Flatten<Self>
       where Self: Sized,
             Self::Item: IntoFallibleIterator<Error = Self::Error> { ... }
    fn fuse(self) -> Fuse<Self>
       where Self: Sized { ... }
    fn inspect<F>(self, f: F) -> Inspect<Self, F>
       where Self: Sized,
             F: FnMut(&Self::Item) -> Result<(), Self::Error> { ... }
    fn by_ref(&mut self) -> &mut Self
       where Self: Sized { ... }
    fn collect<T>(self) -> Result<T, Self::Error>
       where T: FromFallibleIterator<Self::Item>,
             Self: Sized { ... }
    fn partition<B, F>(self, f: F) -> Result<(B, B), Self::Error>
       where Self: Sized,
             B: Default + Extend<Self::Item>,
             F: FnMut(&Self::Item) -> Result<bool, Self::Error> { ... }
    fn fold<B, F>(self, init: B, f: F) -> Result<B, Self::Error>
       where Self: Sized,
             F: FnMut(B, Self::Item) -> Result<B, Self::Error> { ... }
    fn try_fold<B, E, F>(&mut self, init: B, f: F) -> Result<B, E>
       where Self: Sized,
             E: From<Self::Error>,
             F: FnMut(B, Self::Item) -> Result<B, E> { ... }
    fn all<F>(&mut self, f: F) -> Result<bool, Self::Error>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<bool, Self::Error> { ... }
    fn any<F>(&mut self, f: F) -> Result<bool, Self::Error>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<bool, Self::Error> { ... }
    fn find<F>(&mut self, f: F) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             F: FnMut(&Self::Item) -> Result<bool, Self::Error> { ... }
    fn find_map<B, F>(&mut self, f: F) -> Result<Option<B>, Self::Error>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<Option<B>, Self::Error> { ... }
    fn position<F>(&mut self, f: F) -> Result<Option<usize>, Self::Error>
       where Self: Sized,
             F: FnMut(Self::Item) -> Result<bool, Self::Error> { ... }
    fn max(self) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             Self::Item: Ord { ... }
    fn max_by_key<B, F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             B: Ord,
             F: FnMut(&Self::Item) -> Result<B, Self::Error> { ... }
    fn max_by<F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             F: FnMut(&Self::Item, &Self::Item) -> Result<Ordering, Self::Error> { ... }
    fn min(self) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             Self::Item: Ord { ... }
    fn min_by_key<B, F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             B: Ord,
             F: FnMut(&Self::Item) -> Result<B, Self::Error> { ... }
    fn min_by<F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>
       where Self: Sized,
             F: FnMut(&Self::Item, &Self::Item) -> Result<Ordering, Self::Error> { ... }
    fn rev(self) -> Rev<Self>
       where Self: Sized + DoubleEndedFallibleIterator { ... }
    fn unzip<A, B, FromA, FromB>(self) -> Result<(FromA, FromB), Self::Error>
       where Self: Sized + FallibleIterator<Item = (A, B)>,
             FromA: Default + Extend<A>,
             FromB: Default + Extend<B> { ... }
    fn cloned<'a, T>(self) -> Cloned<Self>
       where Self: Sized + FallibleIterator<Item = &'a T>,
             T: 'a + Clone { ... }
    fn cycle(self) -> Cycle<Self>
       where Self: Sized + Clone { ... }
    fn cmp<I>(self, other: I) -> Result<Ordering, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Item = Self::Item, Error = Self::Error>,
             Self::Item: Ord { ... }
    fn partial_cmp<I>(self, other: I) -> Result<Option<Ordering>, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialOrd<I::Item> { ... }
    fn eq<I>(self, other: I) -> Result<bool, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialEq<I::Item> { ... }
    fn ne<I>(self, other: I) -> Result<bool, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialEq<I::Item> { ... }
    fn lt<I>(self, other: I) -> Result<bool, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialOrd<I::Item> { ... }
    fn le<I>(self, other: I) -> Result<bool, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialOrd<I::Item> { ... }
    fn gt<I>(self, other: I) -> Result<bool, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialOrd<I::Item> { ... }
    fn ge<I>(self, other: I) -> Result<bool, Self::Error>
       where Self: Sized,
             I: IntoFallibleIterator<Error = Self::Error>,
             Self::Item: PartialOrd<I::Item> { ... }
    fn iterator(self) -> Iterator<Self> ⓘ
       where Self: Sized { ... }
    fn map_err<B, F>(self, f: F) -> MapErr<Self, F>
       where F: FnMut(Self::Error) -> B,
             Self: Sized { ... }

}
Expand description

An Iterator-like trait that allows for calculation of items to fail.

Required Associated Types§

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type Item

The type being iterated over.

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type Error

The error type.

Required Methods§

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fn next(&mut self) -> Result<Option<Self::Item>, Self::Error>

Advances the iterator and returns the next value.

Returns Ok(None) when iteration is finished.

The behavior of calling this method after a previous call has returned Ok(None) or Err is implemenetation defined.

Provided Methods§

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fn size_hint(&self) -> (usize, Option<usize>)

Returns bounds on the remaining length of the iterator.

Specifically, the first half of the returned tuple is a lower bound and the second half is an upper bound.

For the upper bound, None indicates that the upper bound is either unknown or larger than can be represented as a usize.

Both bounds assume that all remaining calls to next succeed. That is, next could return an Err in fewer calls than specified by the lower bound.

The default implementation returns (0, None), which is correct for any iterator.

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fn count(self) -> Result<usize, Self::Error>where Self: Sized,

Consumes the iterator, returning the number of remaining items.

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fn last(self) -> Result<Option<Self::Item>, Self::Error>where Self: Sized,

Returns the last element of the iterator.

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fn nth(&mut self, n: usize) -> Result<Option<Self::Item>, Self::Error>

Returns the nth element of the iterator.

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fn step_by(self, step: usize) -> StepBy<Self>where Self: Sized,

Returns an iterator starting at the same point, but stepping by the given amount at each iteration.

Panics

Panics if step is 0.

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fn chain<I>(self, it: I) -> Chain<Self, I>where I: IntoFallibleIterator<Item = Self::Item, Error = Self::Error>, Self: Sized,

Returns an iterator which yields the elements of this iterator followed by another.

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fn zip<I>(self, o: I) -> Zip<Self, I::IntoFallibleIter>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>,

Returns an iterator that yields pairs of this iterator’s and another iterator’s values.

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fn map<F, B>(self, f: F) -> Map<Self, F>where Self: Sized, F: FnMut(Self::Item) -> Result<B, Self::Error>,

Returns an iterator which applies a fallible transform to the elements of the underlying iterator.

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fn for_each<F>(self, f: F) -> Result<(), Self::Error>where Self: Sized, F: FnMut(Self::Item) -> Result<(), Self::Error>,

Calls a fallible closure on each element of an iterator.

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fn filter<F>(self, f: F) -> Filter<Self, F>where Self: Sized, F: FnMut(&Self::Item) -> Result<bool, Self::Error>,

Returns an iterator which uses a predicate to determine which values should be yielded. The predicate may fail; such failures are passed to the caller.

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fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where Self: Sized, F: FnMut(Self::Item) -> Result<Option<B>, Self::Error>,

Returns an iterator which both filters and maps. The closure may fail; such failures are passed along to the consumer.

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fn enumerate(self) -> Enumerate<Self>where Self: Sized,

Returns an iterator which yields the current iteration count as well as the value.

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fn peekable(self) -> Peekable<Self>where Self: Sized,

Returns an iterator that can peek at the next element without consuming it.

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fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> Result<bool, Self::Error>,

Returns an iterator that skips elements based on a predicate.

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fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where Self: Sized, P: FnMut(&Self::Item) -> Result<bool, Self::Error>,

Returns an iterator that yields elements based on a predicate.

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fn skip(self, n: usize) -> Skip<Self>where Self: Sized,

Returns an iterator which skips the first n values of this iterator.

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fn take(self, n: usize) -> Take<Self>where Self: Sized,

Returns an iterator that yields only the first n values of this iterator.

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fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where Self: Sized, F: FnMut(&mut St, Self::Item) -> Result<Option<B>, Self::Error>,

Returns an iterator which applies a stateful map to values of this iterator.

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fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where Self: Sized, U: IntoFallibleIterator<Error = Self::Error>, F: FnMut(Self::Item) -> Result<U, Self::Error>,

Returns an iterator which maps this iterator’s elements to iterators, yielding those iterators’ values.

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fn flatten(self) -> Flatten<Self>where Self: Sized, Self::Item: IntoFallibleIterator<Error = Self::Error>,

Returns an iterator which flattens an iterator of iterators, yielding those iterators’ values.

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fn fuse(self) -> Fuse<Self>where Self: Sized,

Returns an iterator which yields this iterator’s elements and ends after the first Ok(None).

The behavior of calling next after it has previously returned Ok(None) is normally unspecified. The iterator returned by this method guarantees that Ok(None) will always be returned.

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fn inspect<F>(self, f: F) -> Inspect<Self, F>where Self: Sized, F: FnMut(&Self::Item) -> Result<(), Self::Error>,

Returns an iterator which passes each element to a closure before returning it.

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fn by_ref(&mut self) -> &mut Selfwhere Self: Sized,

Borrow an iterator rather than consuming it.

This is useful to allow the use of iterator adaptors that would otherwise consume the value.

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fn collect<T>(self) -> Result<T, Self::Error>where T: FromFallibleIterator<Self::Item>, Self: Sized,

Transforms the iterator into a collection.

An Err will be returned if any invocation of next returns Err.

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fn partition<B, F>(self, f: F) -> Result<(B, B), Self::Error>where Self: Sized, B: Default + Extend<Self::Item>, F: FnMut(&Self::Item) -> Result<bool, Self::Error>,

Transforms the iterator into two collections, partitioning elements by a closure.

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fn fold<B, F>(self, init: B, f: F) -> Result<B, Self::Error>where Self: Sized, F: FnMut(B, Self::Item) -> Result<B, Self::Error>,

Applies a function over the elements of the iterator, producing a single final value.

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fn try_fold<B, E, F>(&mut self, init: B, f: F) -> Result<B, E>where Self: Sized, E: From<Self::Error>, F: FnMut(B, Self::Item) -> Result<B, E>,

Applies a function over the elements of the iterator, producing a single final value.

This is used as the “base” of many methods on FallibleIterator.

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fn all<F>(&mut self, f: F) -> Result<bool, Self::Error>where Self: Sized, F: FnMut(Self::Item) -> Result<bool, Self::Error>,

Determines if all elements of this iterator match a predicate.

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fn any<F>(&mut self, f: F) -> Result<bool, Self::Error>where Self: Sized, F: FnMut(Self::Item) -> Result<bool, Self::Error>,

Determines if any element of this iterator matches a predicate.

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fn find<F>(&mut self, f: F) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, F: FnMut(&Self::Item) -> Result<bool, Self::Error>,

Returns the first element of the iterator that matches a predicate.

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fn find_map<B, F>(&mut self, f: F) -> Result<Option<B>, Self::Error>where Self: Sized, F: FnMut(Self::Item) -> Result<Option<B>, Self::Error>,

Applies a function to the elements of the iterator, returning the first non-None result.

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fn position<F>(&mut self, f: F) -> Result<Option<usize>, Self::Error>where Self: Sized, F: FnMut(Self::Item) -> Result<bool, Self::Error>,

Returns the position of the first element of this iterator that matches a predicate. The predicate may fail; such failures are returned to the caller.

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fn max(self) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, Self::Item: Ord,

Returns the maximal element of the iterator.

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fn max_by_key<B, F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, B: Ord, F: FnMut(&Self::Item) -> Result<B, Self::Error>,

Returns the element of the iterator which gives the maximum value from the function.

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fn max_by<F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Result<Ordering, Self::Error>,

Returns the element that gives the maximum value with respect to the function.

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fn min(self) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, Self::Item: Ord,

Returns the minimal element of the iterator.

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fn min_by_key<B, F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, B: Ord, F: FnMut(&Self::Item) -> Result<B, Self::Error>,

Returns the element of the iterator which gives the minimum value from the function.

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fn min_by<F>(self, f: F) -> Result<Option<Self::Item>, Self::Error>where Self: Sized, F: FnMut(&Self::Item, &Self::Item) -> Result<Ordering, Self::Error>,

Returns the element that gives the minimum value with respect to the function.

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fn rev(self) -> Rev<Self>where Self: Sized + DoubleEndedFallibleIterator,

Returns an iterator that yields this iterator’s items in the opposite order.

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fn unzip<A, B, FromA, FromB>(self) -> Result<(FromA, FromB), Self::Error>where Self: Sized + FallibleIterator<Item = (A, B)>, FromA: Default + Extend<A>, FromB: Default + Extend<B>,

Converts an iterator of pairs into a pair of containers.

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fn cloned<'a, T>(self) -> Cloned<Self>where Self: Sized + FallibleIterator<Item = &'a T>, T: 'a + Clone,

Returns an iterator which clones all of its elements.

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fn cycle(self) -> Cycle<Self>where Self: Sized + Clone,

Returns an iterator which repeas this iterator endlessly.

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fn cmp<I>(self, other: I) -> Result<Ordering, Self::Error>where Self: Sized, I: IntoFallibleIterator<Item = Self::Item, Error = Self::Error>, Self::Item: Ord,

Lexicographically compares the elements of this iterator to that of another.

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fn partial_cmp<I>(self, other: I) -> Result<Option<Ordering>, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialOrd<I::Item>,

Lexicographically compares the elements of this iterator to that of another.

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fn eq<I>(self, other: I) -> Result<bool, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialEq<I::Item>,

Determines if the elements of this iterator are equal to those of another.

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fn ne<I>(self, other: I) -> Result<bool, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialEq<I::Item>,

Determines if the elements of this iterator are not equal to those of another.

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fn lt<I>(self, other: I) -> Result<bool, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialOrd<I::Item>,

Determines if the elements of this iterator are lexicographically less than those of another.

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fn le<I>(self, other: I) -> Result<bool, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialOrd<I::Item>,

Determines if the elements of this iterator are lexicographically less than or equal to those of another.

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fn gt<I>(self, other: I) -> Result<bool, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialOrd<I::Item>,

Determines if the elements of this iterator are lexicographically greater than those of another.

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fn ge<I>(self, other: I) -> Result<bool, Self::Error>where Self: Sized, I: IntoFallibleIterator<Error = Self::Error>, Self::Item: PartialOrd<I::Item>,

Determines if the elements of this iterator are lexicographically greater than or equal to those of another.

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fn iterator(self) -> Iterator<Self> ⓘwhere Self: Sized,

Returns a normal (non-fallible) iterator over Result<Item, Error>.

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fn map_err<B, F>(self, f: F) -> MapErr<Self, F>where F: FnMut(Self::Error) -> B, Self: Sized,

Returns an iterator which applies a transform to the errors of the underlying iterator.

Implementations on Foreign Types§

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impl<I: FallibleIterator + ?Sized> FallibleIterator for Box<I>

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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fn next(&mut self) -> Result<Option<I::Item>, I::Error>

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fn size_hint(&self) -> (usize, Option<usize>)

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fn nth(&mut self, n: usize) -> Result<Option<I::Item>, I::Error>

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impl<I: FallibleIterator + ?Sized> FallibleIterator for &mut I

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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fn next(&mut self) -> Result<Option<I::Item>, I::Error>

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fn size_hint(&self) -> (usize, Option<usize>)

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fn nth(&mut self, n: usize) -> Result<Option<I::Item>, I::Error>

Implementors§

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

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type Item = T

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type Error = <I as FallibleIterator>::Error

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impl<B, F, I> FallibleIterator for MapErr<I, F>where I: FallibleIterator, F: FnMut(I::Error) -> B,

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type Item = <I as FallibleIterator>::Item

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type Error = B

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impl<B, I, F> FallibleIterator for FilterMap<I, F>where I: FallibleIterator, F: FnMut(I::Item) -> Result<Option<B>, I::Error>,

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type Item = B

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type Error = <I as FallibleIterator>::Error

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impl<B, I, St, F> FallibleIterator for Scan<I, St, F>where I: FallibleIterator, F: FnMut(&mut St, I::Item) -> Result<Option<B>, I::Error>,

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type Item = B

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type Error = <I as FallibleIterator>::Error

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impl<I> FallibleIterator for Cycle<I>where I: FallibleIterator + Clone,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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

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type Item = (usize, <I as FallibleIterator>::Item)

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type Error = <I as FallibleIterator>::Error

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impl<I> FallibleIterator for Flatten<I>where I: FallibleIterator, I::Item: IntoFallibleIterator<Error = I::Error>,

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type Item = <<I as FallibleIterator>::Item as IntoFallibleIterator>::Item

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type Error = <<I as FallibleIterator>::Item as IntoFallibleIterator>::Error

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impl<I> FallibleIterator for Fuse<I>where I: FallibleIterator,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I> FallibleIterator for Rev<I>where I: DoubleEndedFallibleIterator,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I> FallibleIterator for StepBy<I>where I: FallibleIterator,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I, F> FallibleIterator for Filter<I, F>where I: FallibleIterator, F: FnMut(&I::Item) -> Result<bool, I::Error>,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I, F> FallibleIterator for Inspect<I, F>where I: FallibleIterator, F: FnMut(&I::Item) -> Result<(), I::Error>,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I, P> FallibleIterator for SkipWhile<I, P>where I: FallibleIterator, P: FnMut(&I::Item) -> Result<bool, I::Error>,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I, P> FallibleIterator for TakeWhile<I, P>where I: FallibleIterator, P: FnMut(&I::Item) -> Result<bool, I::Error>,

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type Item = <I as FallibleIterator>::Item

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type Error = <I as FallibleIterator>::Error

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impl<I, U, F> FallibleIterator for FlatMap<I, U, F>where I: FallibleIterator, U: IntoFallibleIterator<Error = I::Error>, F: FnMut(I::Item) -> Result<U, I::Error>,

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type Item = <U as IntoFallibleIterator>::Item

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type Error = <U as IntoFallibleIterator>::Error

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impl<T, E, I> FallibleIterator for Convert<I>where I: Iterator<Item = Result<T, E>>,

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type Item = T

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type Error = E

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impl<T, F, B> FallibleIterator for Map<T, F>where T: FallibleIterator, F: FnMut(T::Item) -> Result<B, T::Error>,

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type Item = B

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type Error = <T as FallibleIterator>::Error

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impl<T, U> FallibleIterator for Chain<T, U>where T: FallibleIterator, U: FallibleIterator<Item = T::Item, Error = T::Error>,

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type Item = <T as FallibleIterator>::Item

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type Error = <T as FallibleIterator>::Error

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impl<T, U> FallibleIterator for Zip<T, U>where T: FallibleIterator, U: FallibleIterator<Error = T::Error>,

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type Item = (<T as FallibleIterator>::Item, <U as FallibleIterator>::Item)

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type Error = <T as FallibleIterator>::Error