Programmer Humor

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Stop using floats (lemmy.world)

submitted 8 months ago by nifty@lemmy.world to c/programmer_humor@programming.dev

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[–] Psythik@lemmy.world 15 points 8 months ago (2 children)

While we're at it, what the hell is -0 and how does it differ from 0?

[–] Reddfugee42@lemmy.world 7 points 8 months ago (1 children)

It's the negative version

[–] ShepherdPie@midwest.social 5 points 8 months ago (1 children)

So it's just like 0 but with an evil goatee?

[–] Knock_Knock_Lemmy_In@lemmy.world 8 points 8 months ago

Look at the graph of y=tan(x)+ⲡ/2

-0 and +0 are completely different.

[–] computerscientistI@lemm.ee 2 points 8 months ago

For integers it really doesn't exist. An algorithm for multiplying an integer with -1 is: Invert all bits and add 1 to the right-most bit. You can do that for 0 of course, it won't hurt.