Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Message-ID:	<f0e60a71050512125316987aa3@mail.gmail.com>
Date:	Thu, 12 May 2005 14:53:18 -0500
From:	Raz <coolmandan AT gmail DOT com>
Reply-To:	Raz <coolmandan AT gmail DOT com>
To:	cygwin AT cygwin DOT com
Subject:	Re: Warnings for converting non-pointer types to NULL
In-Reply-To:	<d5vqlp$k4$1@sea.gmane.org>
Mime-Version:	1.0
References:	<d5vqlp$k4$1 AT sea DOT gmane DOT org>
X-IsSubscribed:	yes
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id j4CJrRuG009095

On 5/12/05, Mikael <mindcooler AT gmail DOT com> wrote:
> I guess presume NULL is a macro evaulting to 0 in windows.h and a typedef
> for (void *)0 in <cstddef>, or?

No. Not in <cstddef>. Since you are using that header file, I assume
you are using C++. In C++, NULL is 0, not (void *)0 as it is in C.

> 
> Since I want to have this warning, the approach I've taken is to always
> include <cstddef> after <windows.h>. Is approach correct and safe or can it
> get me in trouble?

Since marcos cannot be "overloaded" or "overridden", the <cstddef>
marcos would take precedence over conflicting <windows.h> marcos as
long as <cstddef> is included first. However, this should not make a
different since, again assuming you are using C++, both marcos should
be defined to the same value.

> 
> Thanks for any replies
> 
> / M
> 
> --
> Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
> Problem reports:       http://cygwin.com/problems.html
> Documentation:         http://cygwin.com/docs.html
> FAQ:                   http://cygwin.com/faq/
> 
> 


-- 
-------------------------------------------
 Dan Day
http://razzerblog.blogspot.com

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -