On Wed, Apr 8, 2009 at 2:55 PM, Neil Mitchell <ndmitchell@gmail.com> wrote:

That seems a really weird way to write it! Who decided all auxiliary
functions should be called go? (I think I'm blaming dons) - why not:

sffi :: (Integral a,Num a) => Integer -> Maybe a

sffi n | toInteger n2 == n = Just n2
| otherwise = Nothing
where n2 = fromInteger n

I know I was too lazy to clean it up :-P
( I also blame Dons for 'go' )