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From: "cl1" <charles.w.lambert@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: generic package with procedure paramter gives "not subtype
 conformant with declaration"
Date: 1 Oct 2006 21:46:04 -0700
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tmoran@acm.org wrote:
> > > For types, any convention-C access type will work for a void pointer
> > > when the values come from C and are never dereferenced by the Ada.
> > ...
> > Once i store the access in the pointer i no longer need to know
> > what type it is. I just need the reference to pass to the C code.
>    Maybe I'm not understanding but if the values come from C and are
> never used by Ada, but merely passed on to other calls on C, why not
> just declare them as
>   type C_Param is new Interfaces.Unsigned_32;
> and treat them in Ada as a black box, size 32, content unknown.

The values come from ada.