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By: a guest on Apr 15th, 2012  |  syntax: None  |  size: 0.33 KB  |  hits: 5  |  expires: Never
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  1. def reduceLeft[B >: A](op: (B, A) => B): B = {
  2.     if (isEmpty)
  3.       throw new UnsupportedOperationException("empty.reduceLeft")
  4.    
  5.     var first = true
  6.     var acc: B = 0.asInstanceOf[B]
  7.  
  8.     for (x <- self) {
  9.       if (first) {
  10.         acc = x
  11.         first = false
  12.       }
  13.       else acc = op(acc, x)
  14.     }
  15.     acc
  16.   }
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