From: Jan Engelhardt <jengelh@linux01.gwdg.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jeff Garzik <jeff@garzik.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: somebody dropped a (warning) bomb
Date: Thu, 8 Feb 2007 22:10:23 +0100 (MET) [thread overview]
Message-ID: <Pine.LNX.4.61.0702082202180.24888@yvahk01.tjqt.qr> (raw)
In-Reply-To: <Pine.LNX.4.64.0702081145470.8424@woody.linux-foundation.org>
On Feb 8 2007 11:53, Linus Torvalds wrote:
>On Thu, 8 Feb 2007, Jan Engelhardt wrote:
>>
>Exactly because "char *" doesn't have a defined sign,
>The user has clearly stated "I don't care about the sign". If a compiler
>complains about us passing "unsigned char *" (or, if "char" is naturally
>unsigned on that platform, "signed char *") to strcmp then that compiler
>IS BROKEN. Because "strcmp()" takes "char *", which simply DOES NOT HAVE a
>uniquely defined sign.
Thank you for this insight, I don't usually read standards, only RFCs :)
Uh, does that also apply to the longer types, int, long etc.? I hope not.
>only a TOTALLY INCOMPETENT compiler will warn about its signedness.
>That's why we can't have -Wpointer-sign on by default. The gcc warning is
>simply *crap*.
>[...]
>It really is that simple. gcc is broken. The C language isn't, it's purely
>a broken compiler issue.
Maybe you could send in a patch to gcc that fixes the issue?
Jan
--
next prev parent reply other threads:[~2007-02-08 21:12 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-08 15:00 somebody dropped a (warning) bomb Jeff Garzik
2007-02-08 16:33 ` Linus Torvalds
2007-02-08 18:42 ` Jan Engelhardt
2007-02-08 19:53 ` Linus Torvalds
2007-02-08 21:10 ` Jan Engelhardt [this message]
2007-02-08 21:37 ` Linus Torvalds
2007-02-08 23:12 ` David Rientjes
2007-02-08 23:37 ` Linus Torvalds
2007-02-09 0:24 ` David Rientjes
2007-02-09 0:42 ` Linus Torvalds
2007-02-09 0:59 ` Linus Torvalds
2007-02-09 0:59 ` David Rientjes
2007-02-09 1:11 ` Linus Torvalds
2007-02-09 1:18 ` David Rientjes
2007-02-09 15:38 ` Linus Torvalds
2007-02-09 3:27 ` D. Hazelton
2007-02-09 19:54 ` Pete Zaitcev
2007-02-09 12:34 ` Jan Engelhardt
2007-02-09 13:16 ` linux-os (Dick Johnson)
2007-02-09 17:45 ` Jan Engelhardt
2007-02-09 20:29 ` linux-os (Dick Johnson)
2007-02-09 22:05 ` Jan Engelhardt
2007-02-09 22:58 ` Martin Mares
2007-02-12 18:50 ` linux-os (Dick Johnson)
2007-02-13 15:14 ` Dick Streefland
2007-02-08 21:13 ` J.A. Magallón
2007-02-08 21:42 ` Linus Torvalds
2007-02-08 22:03 ` Linus Torvalds
2007-02-08 22:19 ` Willy Tarreau
2007-02-09 0:03 ` J.A. Magallón
2007-02-09 0:22 ` Linus Torvalds
2007-02-09 12:38 ` Sergei Organov
2007-02-09 15:58 ` Linus Torvalds
2007-02-12 11:12 ` Sergei Organov
2007-02-12 16:26 ` Linus Torvalds
2007-02-13 18:06 ` Sergei Organov
2007-02-13 18:26 ` Pekka Enberg
2007-02-13 19:14 ` Sergei Organov
2007-02-13 19:43 ` Pekka Enberg
2007-02-13 20:29 ` Sergei Organov
2007-02-13 21:31 ` Jeff Garzik
2007-02-13 23:21 ` Linus Torvalds
2007-02-15 13:20 ` Sergei Organov
2007-02-15 15:57 ` Linus Torvalds
2007-02-15 18:53 ` Sergei Organov
2007-02-15 19:02 ` Linus Torvalds
2007-02-15 20:23 ` me, not " Oleg Verych
2007-02-16 4:26 ` Rene Herman
2007-02-19 11:58 ` Sergei Organov
2007-02-19 13:58 ` Sergei Organov
2007-02-15 22:32 ` Lennart Sorensen
2007-02-13 19:25 ` Linus Torvalds
2007-02-13 19:59 ` Sergei Organov
2007-02-13 20:24 ` Linus Torvalds
2007-02-15 15:15 ` Sergei Organov
2007-02-13 21:13 ` Rob Landley
2007-02-13 22:21 ` Olivier Galibert
2007-02-14 12:52 ` Sergei Organov
2007-02-15 20:06 ` Sergei Organov
2007-02-09 15:10 ` Sergei Organov
2007-02-08 16:35 ` Kumar Gala
[not found] <7Mj5f-3oz-21@gated-at.bofh.it>
[not found] ` <7MktH-5EW-35@gated-at.bofh.it>
[not found] ` <7Mmvy-vj-17@gated-at.bofh.it>
[not found] ` <7MnBC-2fk-13@gated-at.bofh.it>
[not found] ` <7MoQx-4p8-11@gated-at.bofh.it>
[not found] ` <7MpjE-50z-7@gated-at.bofh.it>
[not found] ` <7MpCS-5Fe-9@gated-at.bofh.it>
[not found] ` <7MDd7-17w-1@gated-at.bofh.it>
[not found] ` <7MGkB-62k-31@gated-at.bofh.it>
[not found] ` <7NHoe-2Mb-37@gated-at.bofh.it>
[not found] ` <7NMe9-1ZN-7@gated-at.bofh.it>
[not found] ` <7Oagl-6bO-1@gated-at.bofh.it>
[not found] ` <7ObvW-89N-23@gated-at.bofh.it>
[not found] ` <7Oc8t-NS-1@gated-at.bofh.it>
2007-02-15 20:08 ` Bodo Eggert
2007-02-16 11:21 ` Sergei Organov
2007-02-16 14:51 ` Bodo Eggert
2007-02-19 11:56 ` Sergei Organov
2007-02-16 12:46 ` Sergei Organov
2007-02-16 17:40 ` Bodo Eggert
2007-02-19 12:17 ` Sergei Organov
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