Re: [Haskell-beginners] function not working as expected, type issues

Hello Alexej Il 09/apr/2014 08:03 "Alexej Magura" ha scritto:

K, so I have a function that I’m writing that takes a *string* and a

*count* and prints the *string* to STDOUT *count* times:

displayD :: IO () -> String -> Int displayD string count = do (count > 0) && hPutStr stdout string (count > 0) && displayD string (count - 1)

At glance at least one of your errors comes from your type signature being incorrect. Your function should takes first a String then an Int and should return an IO () because you're printing stuff. So: displayD :: IO () -> String -> Int should become: displayD :: String -> Int -> IO () Regards, Nadir