[Haskell-beginners] Type error in function binding
doaltan at yahoo.co.uk
Mon Apr 2 16:50:41 CEST 2012
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?
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