Struct core::result::Iter1.0.0 [] [src]

pub struct Iter<'a, T: 'a> { /* fields omitted */ }

An iterator over a reference to the Ok variant of a Result.

The iterator yields one value if the result is Ok, otherwise none.

Created by Result::iter.

Trait Implementations

impl<'a, T: Debug + 'a> Debug for Iter<'a, T>
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Formats the value using the given formatter.

impl<'a, T> Iterator for Iter<'a, T>
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The type of the elements being iterated over.

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Advances the iterator and returns the next value. Read more

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Returns the bounds on the remaining length of the iterator. Read more

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Consumes the iterator, counting the number of iterations and returning it. Read more

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Consumes the iterator, returning the last element. Read more

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Returns the nth element of the iterator. Read more

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🔬 This is a nightly-only experimental API. (iterator_step_by #27741)

unstable replacement of Range::step_by

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

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Takes two iterators and creates a new iterator over both in sequence. Read more

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'Zips up' two iterators into a single iterator of pairs. Read more

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Takes a closure and creates an iterator which calls that closure on each element. Read more

1.21.0
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Calls a closure on each element of an iterator. Read more

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Creates an iterator which uses a closure to determine if an element should be yielded. Read more

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Creates an iterator that both filters and maps. Read more

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Creates an iterator which gives the current iteration count as well as the next value. Read more

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Creates an iterator which can use peek to look at the next element of the iterator without consuming it. Read more

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Creates an iterator that [skip]s elements based on a predicate. Read more

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Creates an iterator that yields elements based on a predicate. Read more

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Creates an iterator that skips the first n elements. Read more

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Creates an iterator that yields its first n elements. Read more

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An iterator adaptor similar to [fold] that holds internal state and produces a new iterator. Read more

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Creates an iterator that works like map, but flattens nested structure. Read more

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Creates an iterator which ends after the first [None]. Read more

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Do something with each element of an iterator, passing the value on. Read more

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Borrows an iterator, rather than consuming it. Read more

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Transforms an iterator into a collection. Read more

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Consumes an iterator, creating two collections from it. Read more

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An iterator method that applies a function, producing a single, final value. Read more

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Tests if every element of the iterator matches a predicate. Read more

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Tests if any element of the iterator matches a predicate. Read more

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Searches for an element of an iterator that satisfies a predicate. Read more

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Searches for an element in an iterator, returning its index. Read more

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Searches for an element in an iterator from the right, returning its index. Read more

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Returns the maximum element of an iterator. Read more

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Returns the minimum element of an iterator. Read more

1.6.0
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Returns the element that gives the maximum value from the specified function. Read more

1.15.0
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Returns the element that gives the maximum value with respect to the specified comparison function. Read more

1.6.0
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Returns the element that gives the minimum value from the specified function. Read more

1.15.0
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Returns the element that gives the minimum value with respect to the specified comparison function. Read more

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Reverses an iterator's direction. Read more

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Converts an iterator of pairs into a pair of containers. Read more

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Creates an iterator which [clone]s all of its elements. Read more

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Repeats an iterator endlessly. Read more

1.11.0
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Sums the elements of an iterator. Read more

1.11.0
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Iterates over the entire iterator, multiplying all the elements Read more

1.5.0
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Lexicographically compares the elements of this Iterator with those of another. Read more

1.5.0
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Lexicographically compares the elements of this Iterator with those of another. Read more

1.5.0
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Determines if the elements of this Iterator are equal to those of another. Read more

1.5.0
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Determines if the elements of this Iterator are unequal to those of another. Read more

1.5.0
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Determines if the elements of this Iterator are lexicographically less than those of another. Read more

1.5.0
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Determines if the elements of this Iterator are lexicographically less or equal to those of another. Read more

1.5.0
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Determines if the elements of this Iterator are lexicographically greater than those of another. Read more

1.5.0
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Determines if the elements of this Iterator are lexicographically greater than or equal to those of another. Read more

impl<'a, T> DoubleEndedIterator for Iter<'a, T>
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Removes and returns an element from the end of the iterator. Read more

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🔬 This is a nightly-only experimental API. (iter_rfold #44705)

An iterator method that reduces the iterator's elements to a single, final value, starting from the back. Read more

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🔬 This is a nightly-only experimental API. (iter_rfind #39480)

Searches for an element of an iterator from the right that satisfies a predicate. Read more

impl<'a, T> ExactSizeIterator for Iter<'a, T>
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Returns the exact number of times the iterator will iterate. Read more

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🔬 This is a nightly-only experimental API. (exact_size_is_empty #35428)

Returns whether the iterator is empty. Read more

impl<'a, T> FusedIterator for Iter<'a, T>
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impl<'a, A> TrustedLen for Iter<'a, A>
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impl<'a, T> Clone for Iter<'a, T>
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Returns a copy of the value. Read more

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Performs copy-assignment from source. Read more