The reason is that you can define =- as on operator so for example, in this (obfuscated) code: (=-) x y = x * y sq y = y =- y Thus, in your code, you had an operator on the LHS of the definition, and the interpreter baulked at it. Bob On 27 Sep 2005, at 10:34, feucht@uni-koblenz.de wrote:
Hi i can not load program test1 into hugs, but test2 works. Am i missing some special syntax?
greetings, Philip
-------------- test1 ------------------
foo :: Maybe Int -> Int foo Nothing =-1 foo (Just a)= a
-------------- test2 ------------------
foo :: Maybe Int -> Int foo Nothing = -1 -- ^ -- +-- note an extra space foo (Just a)= a _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe