12 Jan
2009
12 Jan
'09
9:26 a.m.
On Mon, 2009-01-12 at 15:06 +0100, Henning Thielemann wrote:
It has to be manually transformed into a version that is not recursive at the top level:
map :: (a -> b) -> [a] -> [b] map f = go where go [] = [] go (x:xs) = f x : go xs
Then the map can be inlined at the call site and the 'f' inlined into the body of 'go'.
Maybe HLint can make such suggestions ...
I think HLint's philosophy prefers elegant code to performance hacks. Duncan