this post was submitted on 07 Dec 2023
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God I wish there was an easier way to do this (programming.dev)
submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]
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[–] [email protected] 16 points 1 year ago* (last edited 1 year ago) (5 children)

who needs modulo when you can get less characters out of

while (number > 1) {
  number -= 2;
}
return number;

very efficient

edit: or theres the trusty iseven api

[–] [email protected] 8 points 1 year ago (3 children)

here is somewhat less:

return (number % 2) == 0;

[–] pivot_root 10 points 1 year ago (2 children)

return !(number & 1);

[–] venoft 8 points 1 year ago* (last edited 1 year ago) (1 children)

This is the way. Modulo takes too long to compute, bitwise compare should be a lot faster.

return !(number & 0x1);
[–] [email protected] 5 points 1 year ago* (last edited 1 year ago)

oh shit yo

this comment chain is pretty awesome, I learned a lot from this thanks!

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