Re: pointer to pointer intialize to NULL but still point to NULL

From	Ruben Safir <mrbrklyn@panix.com>
Newsgroups	comp.lang.c++
Subject	Re: pointer to pointer intialize to NULL but still point to NULL
Date	2011-07-09 00:35 +0000
Organization	PANIX Public Access Internet and UNIX, NYC
Message-ID	<iv87oq$s51$1@reader1.panix.com> (permalink)
References	<8f3b364d-798b-4a27-ba68-3e2beb3a51ef@gh5g2000vbb.googlegroups.com>

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Christopher <cpisz@austin.rr.com> wrote:
> void Foo(IUnknown ** ppMicrosoftsOut)
> {
>   // If the operation fails param is NULL
> 
>   // Otherwise param is a valid pointer to object
> }
> 
> 
> I can't change the function prototype, because there is already a lot
> of code that depends on it. How do I initialize the parameter properly
> in the function body, such that all of the following calls from the
> client yield the expected results?
>

My expereince is that C++ despises null...

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pointer to pointer intialize to NULL but still point to NULL Christopher <cpisz@austin.rr.com> - 2011-07-07 15:03 -0700
  Re: pointer to pointer intialize to NULL but still point to NULL Paavo Helde <myfirstname@osa.pri.ee> - 2011-07-08 00:39 -0500
  Re: pointer to pointer intialize to NULL but still point to NULL Stuart Redmann <DerTopper@web.de> - 2011-07-08 00:02 -0700
    Re: pointer to pointer intialize to NULL but still point to NULL Juha Nieminen <nospam@thanks.invalid> - 2011-07-08 07:08 +0000
      Re: pointer to pointer intialize to NULL but still point to NULL Stuart Redmann <DerTopper@web.de> - 2011-07-08 00:53 -0700
  Re: pointer to pointer intialize to NULL but still point to NULL Ruben Safir <mrbrklyn@panix.com> - 2011-07-09 00:35 +0000

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