Programmer Humor

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Stop using floats (lemmy.world)

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

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[–] Psythik 15 points 10 months ago (2 children)

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

[–] Reddfugee42 7 points 10 months ago (1 children)

It's the negative version

[–] [email protected] 5 points 10 months ago (1 children)

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

[–] Knock_Knock_Lemmy_In 8 points 10 months ago

Look at the graph of y=tan(x)+ⲡ/2

-0 and +0 are completely different.

[–] [email protected] 2 points 10 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.