Ignore the layout
pStack needs to be indented to the same level than digStack (or a "where" must be inserted after digStack).
I can't find the error, running it gives parse error during compile on pStack, it is not very descriptive and I don't what is wrong.
after correct indentation, the error message of ghc is quite accurate:
Couldn't match `[Integer]' against `Integer -> [Integer]'
Expected type: [Integer]
Inferred type: Integer -> [Integer]
Probable cause: `pStack' is applied to too few arguments in the call
(pStack xs)
In the second argument of `(++)', namely `pStack xs'
--Stack for the digits for numbers, a modulo b
digStack :: Integer->Integer->[Integer]
digStack a b
| a == 0 = []
| otherwise = (mod a b):(digStack (div a b) b)
--Takes a list of remainders and
pStack :: [Integer] -> Integer -> [Integer]
pStack [] _ = []
pStack (x:xs) a =
digStack x a ++ pStack xs
the last expression should probably be "pStack xs a"
I think I will never like Haskell :-)
Come on, Christian
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