stack overflow in your solution for McCarthy91 problem

[m1nhtu99-hoan9]

stack overflow in your solution for McCarthy91 problem

[BoeingX]

stack overflow in your solution for McCarthy91 problem

Could you please provide some context for the issue you have? There is a unit test for the solution and it passes without problem.

[m1nhtu99-hoan9]

Here is my code snippet that I refer from your one:

module McCarthy91 where
  mc91 :: Integer -> Integer
  mc91 n
    | n > 100   = n - 10
    | otherwise = mc91 (mc91 (n + 1))

I try that code in GHCi as follow:

*Main> :load recursion-exercises/mc-carthy-91.hs
[1 of 1] Compiling McCarthy91       ( recursion-exercises/mc-carthy-91.hs, interpreted )
Ok, modules loaded: McCarthy91.
*McCarthy91> map mc91 [95..110]
[*** Exception: stack overflow

So, because your test passed successfully, is this a GHCi-related problem?

[BoeingX]

I think you got a typo in your definition, it should be otherwise = mc91 (mc91 (n + 11)) instead of otherwise = mc91 (mc91 (n + 1))

[m1nhtu99-hoan9]

OMG sorry for bothering you for such a silly mistake. Thank you very much for your time!

[BoeingX]

Sure, no problem :)