[metapost] Problem with decimal numbersystem

[luigi scarso]

On Tue, Sep 19, 2017 at 6:43 AM, Franck Pastor <franck.pastor at me.com> wrote:
> Hello,
>
> The decimal number system implemented in MetaPost (mplib?) seems to be bugged. If I execute this LuaLaTeX program
>
> \documentclass{article}
> \usepackage{luamplib}
>         \mplibnumbersystem{decimal}
> \begin{document}
>         \begin{mplibcode}
>                 beginfig(1);
>                         label(decimal 1/3, origin);
>                 endfig;
>         \end{mplibcode}
> \end{document}
>
> I get this message in the console:
>
> lualatex(1899,0x7fff7af13300) malloc: *** error for object 0x200007fb93320000: pointer being freed was not allocated
> *** set a breakpoint in malloc_error_break to debug
> Abort
>
> It seems more of a luatex/mplib/lua problem, since the corresponding metapost program:
>
> beginfig(1);
>         label(decimal 1/3, origin);
> endfig;
> end.
>
> executed with « mpost — numbersystem=decimal », works flawlessly.
>
> Any idea of what is going wrong here ?
>
> I’m using TeX Live 2017 (from MacTeX), LuaTeX version 1.0.4 and MetaPost 2.00.
>
> Thanks in advance,
>
> Franck Pastor

I will investigate asap,
thank you for the report.



-- 
luigi