RE: ?? warning: ANSI C++ forbids implicit conversion from `void * ' in initialization ???

[Esteban Quijano <Esteban Quijano artinsoft com>]

It is not true that NULL cannot be used in C++. I don't have to google
anything to understand basic things about stricter type casting. I have tons
of C++ lines of code running perfectly on Windows and Linux without any
trouble. NULL is just a macro you can define as you want in your project:

/* Define NULL pointer value */

#ifndef NULL
#ifdef  __cplusplus
#define NULL    0
#else
#define NULL    ((void *)0)
#endif
#endif

Esteban Quijano
QA dept.
Artinsoft corp.

> -----Original Message-----
> From: Chris Seberino [mailto:seberino spawar navy mil]
> Sent: Wednesday, February 13, 2002 3:37 PM
> To: Paul Davis
> Cc: gtk-list gnome org
> Subject: Re: ?? warning: ANSI C++ forbids implicit conversion 
> from `void
> *' in initialization ???
> 
> 
> Paul
> 
> I may sometimes give impression I'm smart but looks can
> be deceiving. :) (Ph.D. in physics not computing)  
> I have ZERO X experience!
> 
> I looked for NULL explanation about why "= NULL" bad
> but could not anything.  Can you give me a 1-2 sentence
> explanation? Is it a security risk somehow or something?
> 
> By the way, someone should tell the GTK+ tutorial author
> that "= NULL" is bad since it has this in scribble.c and
> apparently he hasn't learned it either. :)
> 
> I'm glad I have input by all these great experts on this mailing list.
> 
> Thanks for everything!
> 
> Chris
> 
> On Wed, Feb 06, 2002 at 02:22:48PM -0500, Paul Davis wrote:
> > >I need to sometimes initialize an object to NULL and get this
> > >message.  How avoid???
> > 
> > this is getting too close to generic programming questions for this
> > list. if you don't understand how to fix this yourself, i 
> worry about
> > future progress on your software.
> > 
> >        SomeObject *someObject = (SomeObject *) 0;
> > 
> > you should never use "NULL" in a C++ program. look it up with google
> > to understand why.
> > 
> > --p
> 
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