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Re: Crash with --enable-checking and some glyphs

From: Lars Ingebrigtsen
Subject: Re: Crash with --enable-checking and some glyphs
Date: Fri, 26 Nov 2021 16:04:57 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux)

Eli Zaretskii <eliz@gnu.org> writes:

>         if (pcm)
>           {
>             it->phys_ascent = pcm->ascent + boff;
>             it->phys_descent = pcm->descent - boff;
>             it->pixel_width = pcm->width;
> please tell what are the values of pcm->ascent and pcm->descent.
> I want to know whether the font is the culprit or some code of ours
> overrides the value from the font.  Then we can devise the solution.

gdb) next
30909                 it->phys_ascent = pcm->ascent + boff;
(gdb) p pcm->ascent 
$1 = 18
(gdb) p pcm->descent 
$2 = -3

(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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