Re: 29 failed tests in the Texinfo 7.1 testsuite on Debian with IBM POWER9

[Patrice Dumas]

On Sat, Jun 01, 2024 at 08:17:32PM -0400, Dennis Clarke wrote:
>  <table class="multitable">
> -<thead><tr><th width="60%">mu&ndash;ltitable headitem</th><th
> width="70%">another tab</th></tr></thead>
> +<thead><tr><th width="59%">mu&ndash;ltitable headitem</th><th
> width="70%">another tab</th></tr></thead>

This seems like a rounding issue of @multitable @columnfractions that is
not reliable with the format used in 7.1.  It should be fixed in the
development version by this commit:
https://git.savannah.gnu.org/cgit/texinfo.git/commit/?id=62c5b6894b6d8922d21f77137e80f92843d2c08e

I also ran into that issue myself, I believe by comparing the Perl and C
implementation, and I found out that the %d format was less reliable
than %0.f.  My guess is that you ran into a similar issue, probably the
rounding of %d format in Perl is processor/libc/compiler/Perl version
dependent.


I checked that the patch does not apply cleanly on 7.1.  I attach a
rebased patch that you could apply to check on 7.1.

-- 
Pat

texinfo-7.1-columnfractions_rounding.patch
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