StructureSwift5.9.0
Iterator
An iterator that produces one or zero instances of an element.
@frozen struct IteratorIteratorOverOne is the iterator for the CollectionOfOne type.
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Conformances
protocol IteratorProtocolA type that supplies the values of a sequence one at a time.
Members
func next() -> Element? Advances to the next element and returns it, or
nilif no next element exists.
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where Element:SendableConformances
protocol SendableA type whose values can safely be passed across concurrency domains by copying.