2007/7/4, Michael Vanier <[EMAIL PROTECTED]>:
That's cool -- good point. takeWhile is also trivially defined in terms of
foldr:
> takeWhile p = foldr (\x r -> if p x then x:r else []) []
Can you do dropWhile in terms of foldr? I don't see how.
I 'm very bad in english, sorry.
Here is a solution....
dropWhile in terms of fordr
Author : Graham Hutton
www.cs.nott.ac.uk/~gmh/fold.ps
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