Programmer Humor

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Peak code reuse (eviltoast.org)

submitted 2 weeks ago by orhtej2@eviltoast.org to c/programmer_humor@programming.dev

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[–] FiskFisk33@startrek.website 5 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

isEven(0) ->
    true;
isEven(Num) ->
    isOdd(Num-1).
isOdd(0) ->
    false;
isOdd(Num) ->
    isEven(Num-1).

[–] Knock_Knock_Lemmy_In@lemmy.world 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Hmm.

isEven(-2)...<out of stack error>

[–] killingspark@feddit.org 3 points 2 weeks ago

Nah, tail recursion optimization can just reuse the same stack frame again and again. It's going to loop until it wraps around what ever integer width it has and then tells you if the biggest integer is even or odd. Or, if it's nice, it's going to complain about the wrap around