You're missing some parenthesis. Instead of "mycounter tail st" write
"mycounter (tail st)".
On Mon, Apr 2, 2012 at 5:50 PM, bahadýr altan
Hi. I'm trying to write a code which counts the number of 'a's in a string. it looks like this :
mycounter st = if st == [] then 0 else if head st == 'a' then 1 + mycounter tail st else mycounter tail st
but it gives this error : ERROR "deneme.hs":19 - Type error in function binding *** Term :mycounter *** Type : [Char] -> b *** Does not match : ([a] -> [a]) -> [Char] -> b *** Because : unification would give infinite type
I have no idea about what I'm doing wrong. Can you help me with this please?
_______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners
-- Markus Läll