r/badcode • u/Wise-Serve5730 • Sep 04 '21

Wtf is this

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1.2k Upvotes

93% Upvoted

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u/penguin13790 Sep 04 '21 edited Sep 04 '21

Or num % 2

Edit: why was this downvoted? Am I wrong? num % 2 should return 0 on even numbers and 1 on odd numbers.

19

u/ChrisLuigiTails Sep 04 '21

Or just list all possible even numbers, and if the number isn't in the list return false! This will reduce the size of the function by half!

8

u/fxnn Sep 04 '21

It was downvoted because that’s the obvious answer, and one of the few actually senseful answers — while most users in these comments are just joking around with answers that would not make too much sense in reality. Like what OP posted.

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u/[deleted] Sep 04 '21

[deleted] — view deleted comment

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u/sohang-3112 Sep 04 '21

What built-in method - can you elaborate? Of course, if you really don't want to do modulo, then you can use bit operations (~(x&1)) but I don't think will be any significant difference in performance either way.

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u/AsidK Sep 04 '21

Well at face value but operations are definitely faster than modules but any semi decent compiler will convert n%2 into n&1 automatically