mchakravarty/accelerate — pull request #38 by arj (2012-03-16 04:15:41+00:00)
Title: Fixed implementation of scanr

Any call to scanr threw an index out of bounds error.

First index value in iteration is i = n, which is correct as
the new array contains n+1 elements.
However, for the old array (which has n elements), the index must be i-1,
not i.