14 Apr
2010
14 Apr
'10
4:31 a.m.
On Wed, 2010-04-14 at 09:29 +0100, Thomas Davie wrote:
It isn't?
fPrelude> fmap id (undefined :: IO ()) *** Exception: Prelude.undefined
ghci is helpfully running the IO action for you. Try this: seq (fmap id (undefined :: IO ())) "not bottom" -- Ashley Yakeley