[Haskell-cafe] Printing the function result

Alexteslin alexteslin at yahoo.co.uk
Wed Jul 25 14:27:59 EDT 2007


I am going through examples from the textbook and trying them out but some
don't work.
For example:

addNum :: Int -> (Int -> Int)
addNum n = addN
	addN m = n+m

This error message i am getting:

ERROR - Cannot find "show" function for:
*** Expression : addNum 4
*** Of type    : Int -> Int 

Now, the type of show is a->String, but i need some kind of function to
print the function as a result.
I tried some input output functions but i don't think that is the right way
to follow.

Can anyone suggest me where to look?

Thank you
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