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From: "Frank J. Lhota" <NOSPAM.lhota.adarose@verizon.net>
Subject: Re: memory leakages with Ada?
Date: Wed, 20 Mar 2002 15:09:12 GMT
Date: 2002-03-20T15:09:12+00:00	[thread overview]
Message-ID: <sC1m8.4395$S3.2927@nwrddc03.gnilink.net> (raw)
In-Reply-To: 3C97CD1F.A675D84F@raytheon.com

"Mark Johnson" <mark_h_johnson@raytheon.com> wrote in message
news:3C97CD1F.A675D84F@raytheon.com...
> A little history. I have an old copy of K&R (Chapter 8, p 177) and the
> implementation in that book for alloc/free will blow up if you provide a
> NULL pointer to free. It is coded something like the following...

I probably should have been clearer. ANSI C requires that free(NULL) should
have no effect. Pre-ANSI compilers may very well have not followed this
rule.

The whole ANSI C effort has been hobbled by the fact that there was so much
C code out there that depended on existing compiler quirks. The standard
ended up being fairly toothless, especially in the requirements of the
standard library functions.






  reply	other threads:[~2002-03-20 15:09 UTC|newest]

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-14 14:07 memory leakages with Ada? Calvin Ow
2002-03-14 14:31 ` Larry Kilgallen
2002-03-14 20:42   ` Nick Roberts
2002-03-14 21:11     ` Larry Kilgallen
2002-03-14 21:07   ` Anh_Vo
2002-03-14 20:12 ` Marin David Condic
2002-03-15  9:37   ` John McCabe
2002-03-15 12:55     ` Pat Rogers
2002-03-16  4:36       ` Will
2002-03-16  4:53         ` Pat Rogers
2002-03-16 12:21         ` Larry Kilgallen
2002-03-16  9:13       ` DPH
2002-03-16 14:38         ` Pat Rogers
2002-03-16 14:56           ` DPH
2002-03-16 15:51             ` Preben Randhol
2002-03-16 16:39               ` DPH
2002-03-16 19:51                 ` Pat Rogers
2002-03-16 20:40                   ` DPH
2002-03-17 19:31                   ` Richard Riehle
2002-03-17 21:49                     ` Pat Rogers
2002-03-17 22:02                       ` Pat Rogers
2002-03-18 22:32                         ` Randy Brukardt
2002-03-18 22:47                           ` Pat Rogers
2002-03-18  7:22                       ` Richard Riehle
2002-03-18 17:35                     ` Marin David Condic
2002-03-17 16:26                 ` Steve Doiel
2002-03-16 20:18         ` Robert A Duff
2002-03-16 20:36           ` DPH
2002-03-15 14:20     ` Marin David Condic
2002-03-18 17:54       ` Warren W. Gay VE3WWG
2002-03-18 19:54         ` Hyman Rosen
2002-03-18 20:34           ` Larry Kilgallen
2002-03-18 21:18             ` Hyman Rosen
2002-03-18 21:45               ` Larry Kilgallen
2002-03-20  1:19                 ` Hyman Rosen
2002-03-20 17:06                   ` Warren W. Gay VE3WWG
2002-03-20 17:56                     ` Larry Kilgallen
2002-03-20 17:48                   ` Marin David Condic
2002-03-22  0:25               ` Matthew Woodcraft
2002-03-22  5:10                 ` Hyman Rosen
2002-03-18 22:18         ` Marin David Condic
2002-03-20 20:49         ` Bertrand Augereau
2002-03-21  4:31         ` Will
2002-03-15 16:00     ` Hyman Rosen
2002-03-15 21:59       ` Chad R. Meiners
2002-03-17  5:43         ` Kevin Cline
2002-03-17  7:22           ` Chad R. Meiners
2002-03-18  4:09             ` Kevin Cline
2002-03-18 16:54               ` Chad R. Meiners
2002-03-18 17:38             ` Warren W. Gay VE3WWG
2002-03-19  9:21               ` John McCabe
2002-03-19 17:11                 ` Warren W. Gay VE3WWG
2002-03-19 17:16                   ` Pat Rogers
2002-03-19 17:51                   ` David C. Hoos
2002-03-19 18:20                   ` Frank J. Lhota
2002-03-19 23:43                     ` Mark Johnson
2002-03-20 15:09                       ` Frank J. Lhota [this message]
2002-03-17  7:27           ` Hyman Rosen
2002-03-18  3:52             ` Kevin Cline
2002-03-18  5:37               ` Hyman Rosen
2002-03-15 17:41   ` Kevin Cline
2002-03-15 18:00     ` Marin David Condic
2002-03-15 18:08     ` Hyman Rosen
2002-03-16 10:15       ` Kevin Cline
2002-03-14 23:14 ` Kevin Cline
2002-03-15  3:20 ` Steve Doiel
2002-03-15  9:32   ` John McCabe
2002-03-15 15:46     ` Hyman Rosen
2002-03-15 17:29     ` Kevin Cline
2002-03-15 15:48   ` Jeffrey Carter
2002-03-16  3:05     ` Steve Doiel
2002-03-16 20:19       ` Jeffrey Carter
2002-03-15 17:25   ` Kevin Cline
2002-03-15 18:03     ` Hyman Rosen
2002-03-16 10:07       ` Kevin Cline
2002-03-17  3:00         ` Hyman Rosen
2002-03-15  9:27 ` John McCabe
  -- strict thread matches above, loose matches on Subject: below --
2002-03-20  6:25 Christoph Grein
2002-03-20 16:35 ` Hyman Rosen
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