main = print (map (const 'x') (take 1 (undefined:undefined)))
In ghci, or with ghc -O0, this produces "x". With ghc -O, this produces Prelude.undefined.But hey, please don't sweat too much on it! I bet it is a rather pathological case.
_______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users