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Stop using floats (lemmy.world)

submitted 10 months ago by nifty to c/[email protected]

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[–] [email protected] 9 points 10 months ago (1 children)

all work in floats

We even have float16 / float8 now for low-accuracy hi-throughput work.

[–] [email protected] 6 points 10 months ago* (last edited 10 months ago) (1 children)

Even float4. You get +/- 0, 0.5, 1, 1.5, 2, 3, Inf, and two values for NaN.

Come to think of it, the idea of -NaN tickles me a bit. "It's not a number, but it's a negative not a number".

[–] [email protected] 6 points 10 months ago* (last edited 10 months ago) (1 children)

I think you got that wrong, you got +Inf, -Inf and two NaNs, but they're both just NaN. As you wrote signed NaN makes no sense, though technically speaking they still have a sign bit.

[–] [email protected] 5 points 10 months ago

Right, there's no -NaN. There are two different values of NaN. Which is why I tried to separate that clause, but maybe it wasn't clear enough.