Created
February 27, 2014 03:52
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accum
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| def accum[X,Y](seed: X, seq: Seq[Y])(fun: (X,Y) => X) = | |
| seq.foldLeft(List[List[X]]()) { | |
| case (Nil, y) => (fun(seed, y) :: Nil) :: Nil | |
| case (buf, y) => (fun(buf.head.head, y) :: buf.head ) :: buf | |
| } | |
| (accum(0, (0 to 10)) { _ + _ }) foreach println |
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