Re:Floating point oddity
by excessive on Monday November 11, 2019 @10:04PM
(#21511199)
Your first line of main is adding -0.0 and -0.0, which is not what I think you intended to show.
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Oops, you're right. https://godbolt.org/z/pAwqUA shows it better. Adding a -0 and +0 together in either order gives +0, using the actual x86-64 addsd instruction.