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From: dawks AT tesco DOT net (dawks)
Newsgroups: comp.lang.c++,comp.os.msdos.djgpp
Subject: Re: ** Pointer thingie's <= what's up with the double *?
Date: Mon, 07 Jan 2002 23:14:41 GMT
Organization: Tesco ISP
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To: djgpp AT delorie DOT com
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On 14 Dec 2001 15:07:20 GMT, "A. Sinan Unur" <asu1 AT cornell DOT edu> wrote:

>"Mike Pilat" <pilat AT uiuc DOT edu> wrote in
>news:wTmS7.3829$tg4 DOT 48021 AT vixen DOT cso DOT uiuc DOT edu: 
>
>> "A. Sinan Unur" <asu1 AT cornell DOT edu> wrote 
>>> "Emile Bosch" <emilebosch AT hotmail DOT com> wrote  
>>> > void** ptr; //? Double **?
>>>
>>> i don't think that is valid.
>>> 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.
>
>See http://www.eskimo.com/~scs/C-faq/q4.9.html
>

Except that that is a C++ FAQ. IUnknown is a binary interface.


dawks.
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