I think you wanted something like this : toDigits :: Integer -> [Integer] toDigits number | number <= 0 = [] | number > 0 = toDigitsAcc [] number --( toDigits (number `div` 10) ) ++ [number `mod` 10] toDigitsAcc:: [Integer] -> Integer -> [Integer] toDigitsAcc acc number | number <= 0 = acc | number > 0 = toDigitsAcc ((number `mod` 10) : acc) (number `div` 10) Regards Nishant Verma On Wed, May 13, 2015 at 5:13 PM, Roelof Wobben wrote:

Hello,

I have this :

-- | Convert a digit to a list for example 123 becomes [1,2,3] toDigits :: Integer -> [Integer] toDigits number | number <= 0 = [] | number > 0 = toDigitsAcc [] number

toDigitsAcc:: [Integer] -> [Integer] -> [Integer] toDigitsAcc acc number | number <= 0 = acc | number > 0 = (number `mod` 10) : acc toDigitsAcc (number `div` 10)

bur there are error on both last lines of he functions.

Any tips how to solve this ?

Roelof

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