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God I wish there was an easier way to do this (programming.dev)

submitted 7 months ago* (last edited 7 months ago) by [email protected] to c/[email protected]

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[-] [email protected] 4 points 7 months ago

Ackchyually-- IEEE 754 guarantees any integer with absolute value less than 2^24 to be exactly representable as a single precision float. So, the "divide by 2, check for decimals" should be safe as long as the origin of the number being checked is somewhat reasonable.

[-] [email protected] 2 points 7 months ago

Of course, but it's somewhat nasty when all of a sudden is_even doesn't do what you expect :).

this post was submitted on 07 Dec 2023

186 points (90.8% liked)

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