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To: David Malone <dwmalone@maths.tcd.ie>
References: <20040705133820.GA9159@stud.fit.vutbr.cz>
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	<20040705161059.GA52584@walton.maths.tcd.ie>
From: des@des.no (=?iso-8859-1?q?Dag-Erling_Sm=F8rgrav?=)
Date: Mon, 05 Jul 2004 18:30:35 +0200
In-Reply-To: <20040705161059.GA52584@walton.maths.tcd.ie> (David Malone's
 message of "Mon, 5 Jul 2004 17:10:59 +0100")
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cc: Divacky Roman <xdivac02@stud.fit.vutbr.cz>
cc: current@freebsd.org
Subject: Re: recent libalias changes
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David Malone <dwmalone@maths.tcd.ie> writes:
> With Divacky's help we localised his problem to alias.c. The twowords
> function breaks the strick aliasing rule, try replacing it with:
>
> static __inline int
> twowords(void *p)
> {
>         unsigned char *c =3D p;
>
>         return ((((unsigned short)c[1] + (unsigned short)c[3])<<8) + c[0]=
 + c[2];
> }

oh no you don't - this is not endian-clean.

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no