Hi,
thanks for reporting this; sorry for taking so long to
reply. The current version of Hugs now handles this error
condition a little bit better:
Prelude> :l Bug.hs
Reading file "Bug.hs":
ERROR "Bug.hs":3 - Undefined type variable "m"
--sigbjorn
----- Original Message -----
From: Deling Ren
To: [EMAIL PROTECTED]
Sent: Friday, February 08, 2002 02:07
Subject: A bug in hugs
Hugs version: Dec 2001. Platform: Windows. Both WinHugs and command line
hugs have the same bug.
start hugs with -98 option and try the following program:
class Monad m => ExMonad where
raise :: String-> m a
instead of reporting an error, an internal error is raised:
INTERNAL ERROR: inheritFundeps - predicate failed to match it's own head!
Regards.
Deling
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