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From: "Mike Pilat" <pilat AT uiuc DOT edu>
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Subject: Re: ** Pointer thingie's <= what's up with the double *?
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Message-ID: <wTmS7.3829$tg4.48021@vixen.cso.uiuc.edu>
Date: Fri, 14 Dec 2001 07:14:01 -0600
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Organization: University of Illinois at Urbana-Champaign
To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

"A. Sinan Unur" <asu1 AT cornell DOT edu> wrote in message
news:Xns9177526CC2A82ASINANUNUR AT 132 DOT 236 DOT 56 DOT 8...
> "Emile Bosch" <emilebosch AT hotmail DOT com> wrote in
> news:vTkS7.469287$Jy2 DOT 33400140 AT news DOT quicknet DOT nl:
> > void** ptr; //? Double **?
>
> i don't think that is valid.
>
> int **ppi;
>
> means ppi is a pointer to a pointer to an int. AFAIK, you can't have
> pointers to void pointers.

You can indeed have void**... for example, the COM IUnknown method
QueryInterface(..) takes a void** as a parameter into which your interface
pointer goes.

[mp]