LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Sergei Organov <osv@javad.com>
To: 7eggert@gmx.de
Cc: "Linus Torvalds" <torvalds@linux-foundation.org>,
	"J.A. MagallÃÃón" <jamagallon@ono.com>,
	"Jan Engelhardt" <jengelh@linux01.gwdg.de>,
	"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: Fri, 16 Feb 2007 14:21:27 +0300	[thread overview]
Message-ID: <874ppmjqko.fsf@javad.com> (raw)
In-Reply-To: <E1HHmuB-0001lW-E1@be1.lrz> (Bodo Eggert's message of "Thu, 15 Feb 2007 21:08:35 +0100")

Bodo Eggert <7eggert@gmx.de> writes:
> Sergei Organov <osv@javad.com> wrote:
>> Linus Torvalds <torvalds@linux-foundation.org> writes:
[...]
> Using signed chars for strings is wrong in most countries on earth. It was
> wrong when the first IBM PC came out in 1981, and creating a compiler in
> 1987 defaulting to signed char is a sure sign of originating from an
> isolated country and knowing nothing about this planet.

Maybe I'm wrong, but wasn't it the case that C had no "signed char" type
that time, so "char" had to be abused for the "tiny signed integer"?

> Using signed chars in comparisons is especially wrong, and casting
> each char to unsigned before comparing them is likely to be
> forgotten.

If we start talking about the C language, my opinion is that it's C
problem that it allows numeric comparison of "char" variables at
all. If one actually needs to compare alphabetic characters numerically,
he should first cast to required integer type.

> Unsigned character strings are useless because there is no such thing
> as char(-23), and if these strings weren't casted to signed inside all
> IO functions, they wouldn't work correctly.

Didn't you swap "signed" and "unsigned" by mistake in this phrase? Or
are you indeed think that using "unsigned char*" for strings is useless?

> Only because many programmers don't compare chars, most programs will
> work outside the USA.

Comparison of characters being numeric is not a very good property of
the C language.

> I repeat: Thanks to using signed chars, the programs only
> work /by/ /accident/! Promoting the use of signed char strings is promoting
> bugs and endangering the stability of all our systems. You should stop this
> bullshit now, instead of increasing the pile.

Where did you see I promoted using of "singed char strings"?! If you
don't like the fact that in C language characters are "char", strings
are "char*", and the sign of char is implementation-defined, please
argue with the C committee, not with me.

Or use -funsigned-char to get dialect of C that fits your requirements
better.

-- Sergei.

  reply	other threads:[~2007-02-16 11:21 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [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 [this message]
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
2007-02-08 15:00 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
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
2007-02-16  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=874ppmjqko.fsf@javad.com \
    --to=osv@javad.com \
    --cc=7eggert@gmx.de \
    --cc=akpm@linux-foundation.org \
    --cc=jamagallon@ono.com \
    --cc=jeff@garzik.org \
    --cc=jengelh@linux01.gwdg.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=torvalds@linux-foundation.org \
    --subject='Re: somebody dropped a (warning) bomb' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).