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sharplet/ConcatenateSequence.swift

Created February 9, 2015 10:25
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Generic concatenation of sequences in Swift
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ConcatenateSequence.swift
func + <S: SequenceType, E where S.Generator.Element == E> (lhs: S, rhs: S) -> GeneratorOf<E> {
var (g, h) = (lhs.generate(), rhs.generate())
return GeneratorOf {
g.next() ?? h.next()
}
}
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