this post was submitted on 19 Aug 2026
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[โ€“] Amir@lemmy.ml 5 points 1 month ago (1 children)

This phenomenon is called integer overflow.

Underflow, but close enough

[โ€“] okamiueru@lemmy.world 5 points 1 month ago* (last edited 1 month ago)

I don't think it's wrong to call it integer overflow, as that covers wrap around in either direction. I don't think there is any mention of "integer underflow" in any IEEE standard.

There is however mention of arithmetic underflow, but that relates to a precision issue with floating point numbers, and not negative wrap around. (See IEEE 754).

It's still understood what one might mean by integer underflow. But if anything, I'd say it's a further specification of a type of integer overflow, and certainly not a necessary distinction.