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From: Hyman Rosen <hyrosen@mail.com>
Subject: Re: How do I write directly to a memory address?
Date: Wed, 09 Feb 2011 16:10:53 -0500
Date: 2011-02-09T16:10:53-05:00	[thread overview]
Message-ID: <4d5302df$0$18057$882e7ee2@usenet-news.net> (raw)
In-Reply-To: <op.vqnj26oulzeukk@jellix.jlfencey.com>

On 2/9/2011 3:19 PM, Vinzent Hoefler wrote:
> So it probably was as readable as C-code could ever be. Of course, things like
> putting "(void)" before each function where the return value is not evaluated
> might not really count as "readable", but it's a good hint for the maintenance
> programmer that it was ignored on purpose.

Ugh. I would never allow such constructs to pass inspection.
It isn't idiomatic C, and it's ugly as sin.

Why might you have such ignored returns? For example, strcat
and strcpy return their first argument so you can cascade,

     strcat(strcat(strcpy(buf, "a"), "b"), "c");

but typically you're just doing

     strcpy(buf, "hello");

If you write

     (void)strcpy(buf, "hello");

that doesn't tell me you're careful, I'll just hate you.



  reply	other threads:[~2011-02-09 21:10 UTC|newest]

Thread overview: 381+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-03  5:52 How do I write directly to a memory address? Syntax Issues
2011-02-03  8:00 ` Georg Bauhaus
2011-02-03  8:01   ` Georg Bauhaus
2011-02-08 13:34   ` Yannick Duchêne (Hibou57)
2011-02-03  8:08 ` mockturtle
2011-02-03 18:07   ` Jeffrey Carter
2011-02-08 13:43   ` Yannick Duchêne (Hibou57)
2011-02-08 21:07     ` Vinzent Hoefler
2011-02-10  2:21     ` Randy Brukardt
2011-02-03  8:24 ` Ludovic Brenta
2011-02-03 10:50   ` Syntax Issues
2011-02-03 11:03   ` Georg Bauhaus
2011-02-03 18:24   ` Jeffrey Carter
2011-02-04  9:21     ` Ludovic Brenta
2011-02-03 21:30   ` Florian Weimer
2011-02-04  9:24   ` Ludovic Brenta
2011-02-04 10:31     ` Georg Bauhaus
2011-02-04 11:07       ` Dmitry A. Kazakov
2011-02-04 17:35       ` Jeffrey Carter
2011-02-04 16:00     ` Hyman Rosen
2011-02-04 17:40       ` Dmitry A. Kazakov
2011-02-04 18:35         ` Hyman Rosen
2011-02-05  5:17           ` Randy Brukardt
2011-02-04 21:36       ` Shark8
2011-02-04 23:00       ` Adam Beneschan
2011-02-05  0:20         ` John B. Matthews
2011-02-05 14:56       ` Pascal Obry
2011-02-07 14:59         ` Hyman Rosen
2011-02-07 16:24           ` Robert A Duff
2011-02-07 16:44             ` Hyman Rosen
2011-02-07 17:02               ` Ludovic Brenta
2011-03-01 20:27             ` Hyman Rosen
2011-03-01 20:47               ` Dmitry A. Kazakov
2011-03-01 21:17                 ` Hyman Rosen
2011-03-01 21:37                   ` Dmitry A. Kazakov
2011-03-01 21:54                     ` Hyman Rosen
2011-03-02  8:42                       ` Dmitry A. Kazakov
2011-03-02 14:36                         ` Hyman Rosen
2011-03-02 15:30                           ` Dmitry A. Kazakov
2011-03-02 15:40                             ` Hyman Rosen
2011-03-02 16:25                               ` Georg Bauhaus
2011-03-02 16:40                                 ` Hyman Rosen
2011-03-02 18:44                                   ` Georg Bauhaus
2011-03-02 18:59                                     ` Hyman Rosen
2011-03-02 17:21                               ` Dmitry A. Kazakov
2011-03-02 17:40                                 ` Hyman Rosen
2011-03-02 18:04                                   ` Dmitry A. Kazakov
2011-03-02 18:29                                     ` Hyman Rosen
2011-03-02 21:55                                       ` Dmitry A. Kazakov
2011-03-02 22:10                                         ` Hyman Rosen
2011-03-03  8:14                                           ` Dmitry A. Kazakov
2011-03-03  8:04                                 ` Simon Wright
2011-03-03  8:23                                   ` Dmitry A. Kazakov
2011-03-03  8:50                                   ` Hyman Rosen
2011-03-03  7:54                               ` Simon Wright
2011-03-02 20:34                   ` KK6GM
2011-03-02 20:59                     ` Hyman Rosen
2011-03-02 21:03                       ` Vinzent Hoefler
2011-03-02 21:13                         ` Hyman Rosen
2011-03-02 21:34                           ` KK6GM
2011-03-03  1:09                             ` Hyman Rosen
2011-03-03  1:38                               ` KK6GM
2011-03-03  2:42                               ` Randy Brukardt
2011-03-02 23:18                           ` Vinzent Hoefler
2011-03-02 23:26                             ` Hyman Rosen
2011-03-03  0:46                               ` Edward Fish
2011-03-03  1:03                                 ` Hyman Rosen
2011-03-03  3:01                                   ` Randy Brukardt
2011-03-03  6:05                                     ` Hyman Rosen
2011-03-03  8:52                                       ` Dmitry A. Kazakov
2011-03-03 17:51                                         ` Hyman Rosen
2011-03-03 18:32                                           ` Dmitry A. Kazakov
2011-03-03 20:08                                             ` Hyman Rosen
2011-03-03 21:55                                               ` Dmitry A. Kazakov
2011-03-03 22:08                                                 ` Hyman Rosen
2011-03-03 20:34                                             ` Hyman Rosen
2011-03-04  0:22                                       ` Randy Brukardt
2011-03-04  3:21                                         ` Nasser M. Abbasi
2011-03-04 16:48                                         ` Hyman Rosen
2011-03-03 21:24                               ` Vinzent Hoefler
2011-03-03 21:32                                 ` Hyman Rosen
2011-03-03 21:39                                   ` Vinzent Hoefler
2011-03-03 21:44                                     ` Hyman Rosen
2011-03-03 22:28                                   ` Georg Bauhaus
2011-03-01 21:52               ` Pascal Obry
2011-03-01 22:08                 ` Hyman Rosen
2011-03-02  0:41                   ` Randy Brukardt
2011-03-02  2:59                     ` Nasser M. Abbasi
2011-03-03  1:44                       ` Randy Brukardt
2011-03-02 14:26                     ` Hyman Rosen
2011-03-02 14:34                       ` Ludovic Brenta
2011-03-02 14:59                         ` Hyman Rosen
2011-03-02 15:19                           ` Pascal Obry
2011-03-02 15:35                             ` Hyman Rosen
2011-03-02 15:49                           ` Ludovic Brenta
2011-03-02 16:03                             ` Hyman Rosen
2011-03-03  2:23                       ` Randy Brukardt
2011-03-03  5:48                         ` Hyman Rosen
2011-03-02  9:19                   ` Pascal Obry
2011-03-02  9:31                     ` Dmitry A. Kazakov
2011-03-02  9:45                       ` Nasser M. Abbasi
2011-03-02 10:24                         ` Georg Bauhaus
2011-03-02 11:16                         ` Dmitry A. Kazakov
2011-03-02 14:51                     ` Hyman Rosen
2011-02-06 17:49     ` Simon Clubley
2011-02-06 18:18       ` Niklas Holsti
2011-02-06 19:05         ` Simon Clubley
2011-02-06 20:01           ` Dmitry A. Kazakov
2011-02-06 21:27             ` Maciej Sobczak
2011-02-06 23:08               ` Shark8
2011-02-07  6:38                 ` Niklas Holsti
2011-02-07  7:23                   ` Shark8
2011-02-07  8:31                     ` Niklas Holsti
2011-02-07 12:31                       ` Simon Clubley
2011-02-07 12:42                         ` Simon Clubley
2011-02-07 21:54                           ` Randy Brukardt
2011-02-08  0:21                             ` Bill Findlay
2011-02-08  1:06                             ` Adam Beneschan
2011-02-21  7:17                               ` David Thompson
2011-02-08 12:46                             ` Simon Clubley
2011-02-08 13:12                             ` J-P. Rosen
2011-02-08 18:03                               ` Jeffrey Carter
2011-02-07  8:38               ` Dmitry A. Kazakov
2011-02-07  9:05                 ` Maciej Sobczak
2011-02-07  9:24                   ` Dmitry A. Kazakov
2011-02-07 23:11                     ` Maciej Sobczak
2011-02-08 18:14                       ` Dmitry A. Kazakov
2011-02-08 21:48                         ` Maciej Sobczak
2011-02-09  8:43                           ` Dmitry A. Kazakov
2011-02-09 21:07                             ` Maciej Sobczak
2011-02-09 21:38                               ` Dmitry A. Kazakov
2011-03-01 21:45                                 ` Maciej Sobczak
2011-02-07  9:00             ` Ludovic Brenta
2011-02-07 13:43               ` Georg Bauhaus
2011-02-07 13:56                 ` Ludovic Brenta
2011-02-07 14:58                   ` Georg Bauhaus
2011-02-07 15:21                     ` Dmitry A. Kazakov
2011-02-07 16:14                       ` Robert A Duff
2011-02-07 17:23                         ` Dmitry A. Kazakov
2011-02-07 18:38                         ` Jeffrey Carter
2011-02-07 21:38                           ` Robert A Duff
2011-02-07 22:41                             ` Simon Wright
2011-02-07 18:10                       ` Georg Bauhaus
2011-02-07 19:27                         ` Simon Wright
2011-02-07 19:29                         ` Dmitry A. Kazakov
2011-02-07 16:54                     ` Ludovic Brenta
2011-02-07 17:55                       ` Georg Bauhaus
2011-02-08  8:04                         ` Ludovic Brenta
2011-02-08  9:01                           ` Nasser M. Abbasi
2011-02-08  9:08                             ` Ludovic Brenta
2011-02-08  9:43                           ` Georg Bauhaus
2011-02-08 19:53                             ` Shark8
2011-02-08  9:46                           ` Georg Bauhaus
2011-02-08  9:58                             ` Ludovic Brenta
2011-02-08 10:03                               ` Georg Bauhaus
2011-02-08 10:08                                 ` Ludovic Brenta
2011-02-08 10:27                                   ` Georg Bauhaus
2011-02-08 10:15                                 ` Nasser M. Abbasi
2011-02-08 16:48                                 ` Adam Beneschan
2011-02-08 18:25                                   ` Georg Bauhaus
2011-02-08 20:48                                     ` Vinzent Hoefler
2011-02-08 21:24                                       ` Georg Bauhaus
2011-02-08 21:41                                         ` Vinzent Hoefler
2011-02-09  8:59                                           ` Dmitry A. Kazakov
2011-02-09 18:25                                             ` Vinzent Hoefler
2011-02-09 20:03                                               ` Dmitry A. Kazakov
2011-02-09 20:19                                                 ` Vinzent Hoefler
2011-02-09 21:10                                                   ` Hyman Rosen [this message]
2011-02-09 21:42                                                     ` Vinzent Hoefler
2011-02-08 17:11                             ` Pascal Obry
2011-02-08 17:11                             ` Pascal Obry
2011-02-08 17:11                             ` Pascal Obry
2011-02-08 17:24                               ` Hyman Rosen
2011-02-08 18:27                                 ` Dmitry A. Kazakov
2011-02-08 18:43                                   ` Hyman Rosen
2011-02-08 10:10                           ` Georg Bauhaus
2011-02-08 10:14                             ` Ludovic Brenta
2011-02-08 10:31                               ` Georg Bauhaus
2011-02-08 18:30                               ` Jeffrey Carter
2011-02-08 18:47                                 ` Hyman Rosen
2011-02-08 20:11                                   ` Shark8
2011-02-08 20:27                                     ` Hyman Rosen
2011-02-08 20:52                                       ` Shark8
2011-02-08 21:21                                         ` Jeffrey Carter
2011-02-08 21:35                                           ` Shark8
2011-02-09  0:03                                       ` Randy Brukardt
2011-02-09  0:14                                         ` Shark8
2011-02-10  2:51                                           ` Randy Brukardt
2011-02-10  4:30                                             ` Shark8
2011-02-11  2:16                                               ` Randy Brukardt
2011-02-09 15:34                                         ` Hyman Rosen
2011-02-09 16:15                                           ` Dmitry A. Kazakov
2011-02-09 16:43                                             ` KK6GM
2011-02-09 17:49                                               ` Dmitry A. Kazakov
2011-02-09 17:54                                                 ` Hyman Rosen
2011-02-09 18:15                                                   ` Dmitry A. Kazakov
2011-02-09 18:25                                                   ` Shark8
2011-02-09 20:16                                                   ` Simon Wright
2011-02-09 20:33                                                     ` Vinzent Hoefler
2011-02-09 16:48                                             ` Hyman Rosen
2011-02-09 17:49                                               ` Dmitry A. Kazakov
2011-02-09 18:07                                                 ` Hyman Rosen
2011-02-09 18:36                                                   ` Dmitry A. Kazakov
2011-02-09 19:12                                                     ` Hyman Rosen
2011-02-09 19:41                                                       ` Shark8
2011-02-09 20:00                                                         ` Hyman Rosen
2011-02-09 20:25                                                           ` Shark8
2011-02-09 21:20                                                             ` Hyman Rosen
2011-02-09 21:23                                                               ` Shark8
2011-02-09 21:40                                                                 ` Hyman Rosen
2011-02-09 23:59                                                                   ` Robert A Duff
2011-02-09 20:01                                                       ` Dmitry A. Kazakov
2011-02-09 20:56                                                         ` Hyman Rosen
2011-02-09 21:47                                                           ` Dmitry A. Kazakov
2011-02-09 21:51                                                             ` Simon Wright
2011-02-09 21:56                                                             ` Hyman Rosen
2011-02-09 22:01                                                               ` Dmitry A. Kazakov
2011-02-10  3:08                                                       ` Randy Brukardt
2011-02-09 22:31                                                   ` Anonymous
2011-02-09 22:34                                                     ` Hyman Rosen
2011-02-09 22:41                                                       ` Vinzent Hoefler
2011-02-09 22:52                                                         ` Hyman Rosen
     [not found]                                                 ` <4d52d7d9$0$18057$882e7ee2@usenet-news.ne t>
2011-02-10  3:03                                                   ` Randy Brukardt
2011-02-09 18:23                                               ` Shark8
2011-02-09 18:31                                                 ` Hyman Rosen
2011-02-09 19:20                                                   ` Shark8
2011-02-09 19:43                                                     ` Hyman Rosen
2011-02-09 20:29                                                       ` Shark8
2011-02-09 21:26                                                         ` Hyman Rosen
2011-02-09 21:40                                                           ` Shark8
2011-02-09 22:09                                                             ` Hyman Rosen
2011-02-09 22:23                                                               ` Shark8
2011-02-09 22:31                                                                 ` Hyman Rosen
2011-02-09 22:38                                                                   ` Vinzent Hoefler
2011-02-09 22:50                                                                     ` Hyman Rosen
2011-02-10  0:16                                                                       ` Shark8
2011-02-10 15:28                                                                         ` Hyman Rosen
2011-02-10 16:38                                                                           ` Shark8
2011-02-10 16:46                                                                             ` Hyman Rosen
2011-02-10  3:23                                                                       ` Randy Brukardt
2011-02-10 17:33                                                                       ` Vinzent Hoefler
2011-02-09 23:07                                                                   ` Shark8
2011-02-09 23:24                                                                     ` Hyman Rosen
2011-02-10  0:35                                                                       ` Shark8
2011-02-10 15:38                                                                         ` Hyman Rosen
2011-02-10 17:05                                                                           ` Shark8
2011-02-10 17:40                                                                             ` Hyman Rosen
2011-02-10 18:22                                                                               ` Shark8
2011-02-10 19:20                                                                               ` Georg Bauhaus
2011-02-11  8:26                                                                               ` Ludovic Brenta
2011-02-11 10:22                                                                                 ` Nasser M. Abbasi
2011-02-11 16:10                                                                                 ` Hyman Rosen
2011-02-11 18:04                                                                                   ` Dmitry A. Kazakov
2011-02-11 18:31                                                                                     ` Hyman Rosen
2011-02-11 18:42                                                                                       ` Vinzent Hoefler
2011-02-11 18:52                                                                                         ` Hyman Rosen
2011-02-11 20:02                                                                                           ` Vinzent Hoefler
2011-02-11 19:41                                                                                       ` Dmitry A. Kazakov
2011-02-11 18:43                                                                                   ` Vinzent Hoefler
2011-02-11 18:57                                                                                     ` Hyman Rosen
2011-02-11 20:15                                                                                       ` Vinzent Hoefler
2011-02-11 20:29                                                                                         ` Hyman Rosen
2011-02-11 20:42                                                                                           ` Vinzent Hoefler
2011-02-11 18:52                                                                                   ` Georg Bauhaus
2011-02-11 19:02                                                                                     ` Hyman Rosen
2011-02-10 17:30                                                                           ` Georg Bauhaus
2011-02-09 18:10                                             ` Shark8
2011-02-10  2:56                                           ` Randy Brukardt
2011-02-09 21:15                                         ` Anonymous
2011-02-08 19:43                                 ` Dmitry A. Kazakov
2011-02-08 20:01                                   ` Hyman Rosen
2011-02-08 20:27                                     ` Dmitry A. Kazakov
2011-02-08 20:41                                       ` Hyman Rosen
2011-02-08 21:06                                     ` Adam Beneschan
2011-02-08 21:13                                       ` Hyman Rosen
2011-02-08 21:16                                       ` Vinzent Hoefler
2011-02-08 22:41                                         ` Adam Beneschan
2011-02-09 18:39                                           ` Vinzent Hoefler
2011-02-09 20:29                                             ` Simon Wright
2011-02-09 20:44                                               ` Vinzent Hoefler
2011-02-10  3:03                                                 ` Adam Beneschan
2011-02-10 19:07                                                   ` Vinzent Hoefler
2011-02-11  7:19                                                     ` Stephen Leake
2011-02-11 18:43                                                       ` Vinzent Hoefler
2011-02-09 10:42                                         ` Simon Wright
2011-02-09 18:39                                           ` Vinzent Hoefler
2011-02-09 18:48                                             ` J-P. Rosen
2011-02-09 18:55                                               ` Vinzent Hoefler
2011-02-09 22:03                                                 ` J-P. Rosen
2011-02-09 22:25                                                   ` Vinzent Hoefler
2011-02-10  3:07                                                     ` Adam Beneschan
2011-02-10  6:09                                                     ` J-P. Rosen
2011-02-10 17:48                                                       ` Vinzent Hoefler
2011-02-09 21:30                                             ` Simon Wright
2011-02-09 22:05                                               ` Vinzent Hoefler
2011-02-09 18:42                                           ` Vinzent Hoefler
2011-02-08 21:09                                     ` Shark8
2011-02-08 21:25                                       ` Hyman Rosen
2011-02-08 21:46                                         ` Vinzent Hoefler
2011-02-08 21:59                                           ` Hyman Rosen
2011-02-09 18:44                                             ` Vinzent Hoefler
2011-02-09 18:54                                               ` Hyman Rosen
2011-02-09 18:59                                                 ` Vinzent Hoefler
2011-02-09 19:21                                                   ` Hyman Rosen
2011-02-09 19:30                                                     ` Vinzent Hoefler
2011-02-09 19:44                                                       ` Hyman Rosen
2011-02-09 20:08                                                         ` Vinzent Hoefler
2011-02-08 21:49                                         ` Simon Clubley
2011-02-08 21:51                                           ` Vinzent Hoefler
2011-02-08 22:13                                             ` Hyman Rosen
2011-02-09 18:04                                               ` Vinzent Hoefler
2011-02-08 22:12                                           ` Hyman Rosen
2011-02-08 23:03                                             ` Simon Clubley
2011-02-08 22:30                                         ` Shark8
2011-02-09 10:19                                         ` Ludovic Brenta
2011-02-09 15:09                                         ` KK6GM
2011-02-09  0:13                                       ` Randy Brukardt
2011-02-09  1:56                                         ` Shark8
2011-02-09  2:33                                           ` Adam Beneschan
2011-02-09 15:49                                             ` Hyman Rosen
2011-02-10  3:29                                               ` Randy Brukardt
2011-02-21  7:17                                             ` David Thompson
2011-02-08 20:04                                   ` Simon Clubley
2011-02-08 20:44                                     ` Dmitry A. Kazakov
2011-02-08 21:19                                       ` Simon Clubley
2011-02-09  9:21                                         ` Dmitry A. Kazakov
2011-02-09 15:20                                           ` KK6GM
2011-02-09 16:39                                             ` Hyman Rosen
2011-02-09 16:46                                               ` KK6GM
2011-02-09 17:15                                                 ` Hyman Rosen
2011-02-09 17:46                                                   ` Shark8
2011-02-09 18:02                                                   ` Dmitry A. Kazakov
2011-02-09 18:17                                                     ` Hyman Rosen
2011-02-09 18:34                                                       ` Dmitry A. Kazakov
2011-02-09 18:52                                                         ` Hyman Rosen
2011-02-09 19:48                                                           ` Dmitry A. Kazakov
2011-02-09 20:09                                                             ` Vinzent Hoefler
2011-02-09 20:52                                                             ` Hyman Rosen
2011-02-09 21:45                                                               ` Simon Wright
2011-02-09 22:13                                                                 ` Shark8
2011-02-09 18:53                                                   ` KK6GM
2011-02-09 19:20                                                     ` Hyman Rosen
2011-02-08 21:31                                       ` Shark8
2011-02-08 21:50                                         ` Vinzent Hoefler
2011-02-08 21:56                                           ` Simon Clubley
2011-02-08 22:41                                             ` Shark8
2011-02-09 18:12                                               ` Vinzent Hoefler
2011-02-09 18:29                                                 ` Shark8
2011-02-09 18:49                                                   ` Vinzent Hoefler
2011-02-09 18:36                                                 ` Hyman Rosen
2011-02-09 18:51                                                   ` Vinzent Hoefler
2011-02-21  7:17                                         ` David Thompson
2011-02-08 20:55                                   ` Georg Bauhaus
2011-02-08 21:26                                   ` Jeffrey Carter
2011-02-09  7:59                                   ` Mart van de Wege
2011-02-09  9:16                                     ` Dmitry A. Kazakov
2011-02-09 10:28                                       ` Mart van de Wege
2011-02-09 15:57                                         ` Hyman Rosen
2011-02-10  3:36                                           ` Randy Brukardt
2011-02-10  6:35                                             ` J-P. Rosen
2011-02-08 10:11                           ` Georg Bauhaus
2011-02-08 10:16                             ` Ludovic Brenta
2011-02-08 10:36                               ` Georg Bauhaus
2011-02-08 10:43                                 ` Ludovic Brenta
2011-02-08 12:20                                   ` Georg Bauhaus
2011-02-08 20:21                             ` Shark8
2011-02-08 21:46                               ` Georg Bauhaus
2011-02-08 22:35                                 ` Shark8
2011-02-10  2:18                             ` Randy Brukardt
2011-02-08 15:36               ` Hyman Rosen
2011-02-08 16:44                 ` Adam Beneschan
2011-02-08 17:13                   ` Hyman Rosen
2011-02-08 18:33                     ` Georg Bauhaus
2011-02-08 18:39                       ` Hyman Rosen
2011-02-03 17:43 ` John McCormick
2011-02-12  4:47 ` Edward Fish
2011-02-12  8:02   ` Niklas Holsti
2011-02-14  0:09   ` Hyman Rosen
2011-02-15  0:25     ` Randy Brukardt
2011-02-19  4:21       ` Edward Fish
2011-02-13  1:04 ` anon
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