delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin-apps/2001/11/28/02:46:10

Mailing-List: contact cygwin-apps-help AT sourceware DOT cygnus DOT com; run by ezmlm
Sender: cygwin-apps-owner AT sourceware DOT cygnus DOT com
List-Subscribe: <mailto:cygwin-apps-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin-apps/>
List-Post: <mailto:cygwin-apps AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-apps-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/lists.html#faqs>
Delivered-To: mailing list cygwin-apps AT sources DOT redhat DOT com
Subject: Re: 0 vs NULL - a note
From: Robert Collins <robert DOT collins AT itdomain DOT com DOT au>
To: cygwin-apps AT cygwin DOT com
In-Reply-To: <20011128081627.W14975@cygbert.vinschen.de>
References: <20011127230925 DOT GA5830 AT redhat DOT com>
<000001c1779c$e1fe2fa0$2101a8c0 AT NOMAD> <20011127235226 DOT GA6537 AT redhat DOT com>
<1006906033 DOT 2048 DOT 23 DOT camel AT lifelesswks> <20011128002122 DOT GA6919 AT redhat DOT com>
<1006907495 DOT 2048 DOT 25 DOT camel AT lifelesswks> <20011128005414 DOT GA7118 AT redhat DOT com>
<1006910727 DOT 637 DOT 0 DOT camel AT lifelesswks> <1006912722 DOT 712 DOT 2 DOT camel AT lifelesswks>
<20011128081627 DOT W14975 AT cygbert DOT vinschen DOT de>
X-Mailer: Evolution/0.99.2 (Preview Release)
Date: 28 Nov 2001 18:44:33 +1100
Message-Id: <1006933475.712.15.camel@lifelesswks>
Mime-Version: 1.0
X-OriginalArrivalTime: 28 Nov 2001 07:46:01.0571 (UTC) FILETIME=[B9BE2330:01C177E0]

On Wed, 2001-11-28 at 18:16, Corinna Vinschen wrote:
> And another note:
> 
> 	if (ptr)
> 
> and
> 
> 	if (!ptr)
> 
> avoid all confusion about 0 vs. NULL.
> 

Not quite, it only solves for comparisons, not for
assignment/initialisation. 

Rob

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019