This question may sound a bit strange. I'll try to explain. I have
written a piece of Haskell and found that I did not understand
things. I tried to look what I got wrong and searched for a
possibility to give me output. Now obvious is that Haskell has not
debugger so I was thinking helping myself with adding some simple
output stuff but that did not seem to work either. So guess I have
sum:: [Int] -> Int
sum [] = 0
sum (x:xs) = ....
Now how can I do the following print the actual sum in every step and
how to see e.g what x or xs is on this step?
I tried it with simple ouput but did not get it right.
Any suggestions?
Friedrich
