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Peak code reuse (lemmy.nz)
submitted 11 months ago by orhtej2@eviltoast.org to c/programmer_humor@programming.dev
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[-] FiskFisk33@startrek.website 6 points 11 months ago* (last edited 11 months ago) 
isEven(0) ->
    true;
isEven(Num) ->
    isOdd(Num-1).
isOdd(0) ->
    false;
isOdd(Num) ->
    isEven(Num-1).
[-] Knock_Knock_Lemmy_In@lemmy.world 3 points 11 months ago* (last edited 11 months ago)

Hmm.

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

[-] killingspark@feddit.org 3 points 11 months 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

this post was submitted on 12 Sep 2025
466 points (98.7% liked)

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