From: Kay Sievers <kay.sievers@vrfy.org>
To: linux-hotplug@vger.kernel.org
Subject: Re: udev compile problem: udevd
Date: Tue, 21 Dec 2004 01:33:24 +0000 [thread overview]
Message-ID: <1103592804.5435.78.camel@localhost.localdomain> (raw)
In-Reply-To: <41C70E8B.5030506@2wire.ch>
On Mon, 2004-12-20 at 18:29 -0500, Dave Dodge wrote:
> On Mon, Dec 20, 2004 at 09:17:39PM +0100, Kay Sievers wrote:
> > A variable sized array is not a pointer! You will get a different
> > sizeof(), which may cause problems.
>
> Beware that gcc does not conform to C99 in regards to the size of a
> structure containing a flexible array. For example:
>
> struct foo{ int i; char c; char arr[]; };
>
> gcc-3.4.2/i386 reports sizeof(struct foo) as 8 and offsetof(struct foo,arr)
> as 5; but C99 requires those values to be the same. More here:
>
> http://gcc.gnu.org/gcc-3.4/c99status.html
> http://gcc.gnu.org/ml/gcc/2002-05/msg02844.html
Interesting. Thanks for pointing this out.
Kay
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prev parent reply other threads:[~2004-12-21 1:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-20 17:40 udev compile problem: udevd Thomas Strösslin
2004-12-20 20:17 ` Kay Sievers
2004-12-20 23:29 ` Dave Dodge
2004-12-21 1:33 ` Kay Sievers [this message]
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