From: Tim Hollebeek <tim@hollebeek.com>
To: Rupert Wood <me@rupey.net>
Cc: "'Zack Weinberg'" <zack@codesourcery.com>,
"'Jan Hubicka'" <jh@suse.cz>,
gcc@gcc.gnu.org
Subject: Re: Mined out of comp.std.c...
Date: Thu, 25 Apr 2002 02:06:00 -0000 [thread overview]
Message-ID: <20020425050208.A27283@pcp736370pcs.reston01.va.comcast.net> (raw)
In-Reply-To: <616BE6A276E3714788D2AC35C40CD18D561668@whale.softwire.co.uk>
On Thu, Apr 25, 2002 at 09:38:58AM +0100, Rupert Wood wrote:
> Zack Weinberg wrote:
>
> > static int int_max (int a, int b) {
> > int d = (b - a);
> > return (b - d) & (d >> (CHAR_BIT*sizeof(int) - 1));
> > }
>
> Maybe I need more coffee, but isn't (b-d) == a?
Consider overflow.
-Tim
next prev parent reply other threads:[~2002-04-25 8:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <616BE6A276E3714788D2AC35C40CD18D5DD6EF@whale.softwire.co.uk>
2002-04-25 1:46 ` Rupert Wood
2002-04-25 2:06 ` Tim Hollebeek [this message]
[not found] <616BE6A276E3714788D2AC35C40CD18D5DD739@whale.softwire.co.uk>
2002-04-25 3:16 ` Rupert Wood
2002-04-25 11:04 ` Peter Barada
[not found] <616BE6A276E3714788D2AC35C40CD18D5DD723@whale.softwire.co.uk>
2002-04-25 2:56 ` Rupert Wood
[not found] <616BE6A276E3714788D2AC35C40CD18D5DD71B@whale.softwire.co.uk>
2002-04-25 2:12 ` Rupert Wood
[not found] <616BE6A276E3714788D2AC35C40CD18D5DD717@whale.softwire.co.uk>
2002-04-25 1:59 ` Rupert Wood
2002-04-25 0:08 Zack Weinberg
2002-04-25 0:41 ` Alan Modra
2002-04-25 1:12 ` Richard Henderson
2002-04-25 1:53 ` Nathan Sidwell
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