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From: Geert Bosch <geert@gonzo.sun3.iaf.nl>
Subject: Re: File descriptor interfacing
Date: 1998/05/05
Message-ID: <6imncb$5rp$1@gonzo.sun3.iaf.nl>#1/1
X-Deja-AN: 350435044
References: <354E9F79.C5E73940@cmis.csiro.au>
Organization: La Calandre Infortunee
Newsgroups: comp.lang.ada
Date: 1998-05-05T00:00:00+00:00
List-Id: <comp.lang.ada>


Richard Beare <Richard.Beare@cmis.csiro.au> wrote:
   The file control block is a private time, so I guess I should
   be using unchecked conversion. Is this the only way?

If you think the file control block is just a private type to
make your life harder, you can use unchecked conversion. 
But then, you could as well change the relevant run-time source to
make the type non-private.

In the case that you think the type was made private on purpose
to prevent you from depending on GNAT internals that can change
without notice then just use the provided interface in the package
spec. BTW, note that you never should use packages in the system
hierarchy that are not described in the Ada RM or the GNAT RM!

Regards,
   Geert