From: hpa@zytor.com (H. Peter Anvin)
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH][2.6.6-rc3] gcc-3.4.0 fixes
Date: Mon, 17 May 2004 00:58:28 +0000 (UTC) [thread overview]
Message-ID: <c892nk$5pf$1@terminus.zytor.com> (raw)
In-Reply-To: 200404292146.i3TLkfI0019612@harpo.it.uu.se
Followup to: <200404292146.i3TLkfI0019612@harpo.it.uu.se>
By author: Mikael Pettersson <mikpe@csd.uu.se>
In newsgroup: linux.dev.kernel
>
> 'ptr' _is_ a char pointer, and the code (visible in the part of
> the patch you didn't include) already performed pointer arithmetic
> on it relying on it being a char pointer. The old code had no
> sane reason at all for updating 'ptr' via a cast-as-lvalue.
>
> cast-as-lvalue is not proper C, has dodgey semantics, and can
> always be replaced by proper C.
>
I don't see how it has dodgey semantics for cast of pointers or
[u]intptr_t to pointers.
IMNSHO the fact that it breaks C++ isn't a good reason to outlaw a
long-documented extension for C.
-hpa
next prev parent reply other threads:[~2004-05-17 0:59 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-29 21:46 [PATCH][2.6.6-rc3] gcc-3.4.0 fixes Mikael Pettersson
2004-05-17 0:58 ` H. Peter Anvin [this message]
2004-06-01 14:52 ` Mikael Pettersson
2004-06-01 15:09 ` William Lee Irwin III
2004-06-01 15:35 ` Mikael Pettersson
2004-06-01 15:38 ` Andreas Schwab
2004-06-01 17:09 ` H. Peter Anvin
2004-06-01 17:14 ` H. Peter Anvin
2004-06-01 21:47 ` Mikael Pettersson
2004-06-01 17:27 ` Linus Torvalds
2004-06-01 19:34 ` Chris Wedgwood
2004-07-16 4:28 ` H. Peter Anvin
[not found] <1PX8S-5z2-23@gated-at.bofh.it>
2004-04-29 9:30 ` Ihar 'Philips' Filipau
2004-04-29 20:46 ` Paul Wagland
2004-04-29 20:54 ` Denis Vlasenko
2004-04-29 21:35 ` Ihar 'Philips' Filipau
-- strict thread matches above, loose matches on Subject: below --
2004-04-28 13:07 Mikael Pettersson
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