Date: Sun, 05 Mar 2006 09:43:28 +0100 From: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=) To: jkoshy@FreeBSD.ORG (Joseph Koshy) Cc: Maxime Henrion <mux@FreeBSD.org>, cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/sys queue.h Message-ID: <8664mtth73.fsf@xps.des.no> In-Reply-To: <20060304154259.8A7BE16A422@hub.freebsd.org> (Joseph Koshy's message of "Sat, 4 Mar 2006 15:42:59 %2B0000 (GMT)") References: <20060304154259.8A7BE16A422@hub.freebsd.org>
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Joseph Koshy <jkoshy@FreeBSD.org> writes: > Maxime Henrion <mux@FreeBSD.org> writes: > > Log: > > Cast the pointer to void * before casting it back to struct type * in > > STAILQ_LAST. This quiets a warning from GCC about increased required > > alignment for the cast. > Doesn't this trade a compile time warning for a runtime fault on those > architectures where alignment matters? Unless the stailq head has been corrupted, we know that the result of the expression is correctly aligned for a pointer to struct type. DES --=20 Dag-Erling Sm=F8rgrav - des@des.no
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