GNU bug report logs - #51075
29.0.50; Uninitialised variable warning in src/term.c

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Package: emacs;

Reported by: "Basil L. Contovounesios" <contovob <at> tcd.ie>

Date: Thu, 7 Oct 2021 11:19:01 UTC

Severity: minor

Found in version 29.0.50

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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From: "Basil L. Contovounesios" <contovob <at> tcd.ie>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 51075 <at> debbugs.gnu.org, eggert <at> cs.ucla.edu
Subject: bug#51075: 29.0.50; Uninitialised variable warning in src/term.c
Date: Fri, 08 Oct 2021 11:21:02 +0100

Eli Zaretskii [2021-10-07 09:02 -0400] wrote:

>> Cc: Paul Eggert <eggert <at> cs.ucla.edu>
>> Date: Thu, 07 Oct 2021 12:18:14 +0100
>> From:  "Basil L. Contovounesios" via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
>>
>> Is
>> 
>>   cmp = composition_table[src->u.cmp.id];
>> 
>> indeed guaranteed to be non-NULL?
>
> If it's ever NULL, the very next line will segfault:
>
> 	      cmp = composition_table[src->u.cmp.id];
> 	      required = cmp->glyph_len;

Right, I didn't read carefully enough.

Thanks,

-- 
Basil
This bug report was last modified 3 years and 305 days ago.

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