From: Richard Henderson <rth@redhat.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: David Mosberger-Tang <David.Mosberger@acm.org>,
davidm@mostang.com, linux-kernel@vger.kernel.org
Subject: Re: GCC 3.4 Heads-up
Date: Wed, 7 Jan 2004 01:54:22 -0800 [thread overview]
Message-ID: <20040107095422.GA21007@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0401061515370.9166@home.osdl.org>
On Tue, Jan 06, 2004 at 03:23:31PM -0800, Linus Torvalds wrote:
> > In ANSI C you've no alternative except memcpy, since you can't cast
> > the pointer and reference the object via some other type (assuming
> > neither type is char, yadda yadda).
>
> Sure you have. You can _always_ change
>
> (a ? b : c) = d;
>
> to
>
> tmp = d;
> a ? (b = tmp) : (c = tmp);
No, I meant his bitfield macro at all. You can't just go and
construct a bit field at random and dereference it.
r~
next prev parent reply other threads:[~2004-01-07 9:56 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <16PqK-8eK-1@gated-at.bofh.it>
[not found] ` <16RiU-2kO-1@gated-at.bofh.it>
[not found] ` <16S5h-3no-5@gated-at.bofh.it>
2004-01-06 21:06 ` David Mosberger-Tang
2004-01-06 22:33 ` Richard Henderson
2004-01-06 23:23 ` Linus Torvalds
2004-01-07 9:54 ` Richard Henderson [this message]
2003-12-26 11:02 linux
2003-12-26 20:05 ` Linus Torvalds
2003-12-27 16:39 ` Andreas Schwab
-- strict thread matches above, loose matches on Subject: below --
2003-12-26 1:46 Chris Meadors
2003-12-26 3:46 ` H. Peter Anvin
2003-12-26 4:34 ` Linus Torvalds
2003-12-26 6:04 ` H. Peter Anvin
2003-12-26 6:58 ` Andy Isaacson
2003-12-26 7:07 ` H. Peter Anvin
2003-12-26 7:08 ` Linus Torvalds
2003-12-29 16:13 ` David Lloyd
2004-01-02 21:57 ` Bill Davidsen
2004-01-03 21:11 ` Krzysztof Halasa
2004-01-04 5:48 ` Bill Davidsen
2004-01-04 20:41 ` Linus Torvalds
2004-01-05 1:28 ` Bill Davidsen
2004-01-05 1:38 ` Måns Rullgård
2004-01-05 23:49 ` Ingo Oeser
2004-01-05 2:25 ` Linus Torvalds
2004-01-05 4:15 ` Bill Davidsen
2004-01-05 4:36 ` Linus Torvalds
2003-12-30 1:37 ` Rusty Russell
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