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Re: NA and NaN representation on mips64el



* YunQiang Su <wzssyqa@gmail.com> [2025-05-13 08:49]:

Rafael Laboissière <rafael@debian.org> 于2025年5月13日周二 00:30写道:

[…]

It seems to be a problem related to how floating point NA and NaN are represented.

Strangely, I cannot reproduce this problem. I built the package manually on a mips64el porterbox using schroot and everything worked fine.

I see. The problem is that the machine (mipsel-osuosl-03.debian.org) is Loongson 3A4000. The problem is that MIPS swap the encodings of sNaN and qNaN since MIPSr5.

I guess that octave uses sNaN as NA? We have no good solution for it. We have meet some other packages with this case. Let's just ask the help from DSA to pin this package on non-3A4000 machines.

Could you please tell me how to make do such a request?

Best,

Rafael Laboissière


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