On Fri, 5 Jan 2007, Jeremy Shaw wrote:
The easiest solution is to make things a little more strict. For example, if you change: nth i (x:xs) = if i < 0 then Empty else nth (i-1) xs
Even better, if I define: nth 0 (x:_) = Just x nth i (_:xs) = if i < 0 then Nothing else nth (i-1) xs nth i [] = Nothing makelist i = i `seq` i : (makelist (i+1)) nth 10000000 (makelist 1) This works like a charm. Thanks. Brian _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
