Programmer Humor

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why not a,b or x,y? (lemm.ee)

submitted 1 year ago by mastermind@lemm.ee to c/programmerhumor@lemmy.ml

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[–] bilb@lem.monster -2 points 1 year ago* (last edited 1 year ago) (2 children)

WTF, I have never used nor seen "j."

I don't usually have to name these variables these days though. Pretty much everything I use has foreach or some functional programming type stuff.

And like that, the off-by-one mistakes disappear.

[–] SaratogaCx@lemmy.world 3 points 1 year ago

It was very common in text books when showing nested loops

int nWhatTheCount = 0;
for (int i = 0; i < 10; i++) { 
    for (int j = 0; j < i; j++) { 
        for (int k = 0; k < j; k++) { 
            for (int l = 0; l < k; l++) { // and on, and on
                nWhatTheCount++;
            }
        }
    }
}

[–] karbonkel@beehaw.org 3 points 1 year ago

j is for a loop in a loop.