From: Roland McGrath <roland@hack.frob.com>
To: elfutils-devel@lists.fedorahosted.org
Subject: Re: [PATCH] libdwfl: Fix wrong type to make gcc -fsanitize=undefined happy.
Date: Thu, 23 Apr 2015 10:05:44 -0700 [thread overview]
Message-ID: <20150423170544.1B32F2C3AB9@topped-with-meat.com> (raw)
In-Reply-To: 55390A6A.4010509@openwall.com
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> Extra plus in front of 0? Why not just use sizeof(struct msgtable)?
Yeah, I guess that would be fine too.
> Something like can be done without unions:
>
> #define msgstr (*(char (*)[sizeof msgtable])&msgtable)
>
> AFACT it's well-defined C and permits to perform bound checking.
That's less clean than a union.
next reply other threads:[~2015-04-23 17:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-23 17:05 Roland McGrath [this message]
-- strict thread matches above, loose matches on Subject: below --
2015-05-06 20:50 Roland McGrath
2015-05-06 10:00 Mark Wielaard
2015-04-28 15:37 Mark Wielaard
2015-04-23 17:49 Mark Wielaard
2015-04-23 17:04 Roland McGrath
2015-04-23 15:06 Alexander Cherepanov
2015-04-22 11:59 Mark Wielaard
2015-04-21 20:26 Roland McGrath
2015-04-21 14:01 Mark Wielaard
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