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From: "Matthew Heaney" <matthew_heaney@acm.org>
Subject: Re: Representation question (void *)
Date: 1999/11/17
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Date: 1999-11-17T00:00:00+00:00
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In article <7E47A2C771ADD211AD3C00A0C960172D01269B57@ISCPORTSEX> , 
"Lipscomb, Kevin" <KLipscomb@C2CEN.USCG.mil> wrote:

> How would one represent the following C declaration in Ada 95?
>
>    void *data;
>
> Is this just a placeholder for a pointer that should never be referenced?

Type void_ptr needs to be in Interfaces.C, but it isn't right now.  In
the meantime, just use type System.Address.

  Data : Address;

If you know the type of the data you're pointing to, then you can
declare an actual access type, and use a convention pragma:

  type whatever is ...

  type Whatever_Ptr is access all Whatever;
  pragma Convention (C, Whatever_Ptr);


--
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evidence will change their beliefs."

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