[Octave-bug-tracker] [bug #42583] log2() returns inaccurate result for many integer powers of 2, unlike Matlab

[Dmitri A. Sergatskov]

Follow-up Comment #25, bug #42583 (project octave):

I thought it is lto, but I recompiled with default flags and it
was still a problem. Anyway, the qrupdate was compiled with "-O3 --ffast-math"
(those are the original flags). I recompiled with -O2 and now it looks fine.

Dmitri.
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