Sequence
protocol Sequence
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Computes the sum of this sequence.
Declaration
Swift
public func sum() -> Element 
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Returns an iterator that generates all pairs of elements in this sequence in order. See
PairIterator.Declaration
Swift
public func makePairs() -> PairIterator<Self, Self>.IteratorReturn Value
A PairIterator iterating over the pairs of the sequences.
 
        Sequence Extension Reference