From: Robert A Duff <bobduff@shell01.TheWorld.com>
Subject: Re: Interfacing to C: big structures
Date: Mon, 25 Feb 2008 18:43:56 -0500
Date: 2008-02-25T18:43:56-05:00 [thread overview]
Message-ID: <wccskzgob43.fsf@shell01.TheWorld.com> (raw)
In-Reply-To: c48dc7da-6f04-4f0f-9a8f-e0acc371ee3c@o10g2000hsf.googlegroups.com
Maciej Sobczak <see.my.homepage@gmail.com> writes:
> Consider the C API that contains some structure S and a couple of
> functions that operate on the state that is stored in the Struct. A
> typical usage in C might be:
>
> struct S s;
>
> init(&s);
> foo(&s);
> bar(&s);
> baz(&s);
>
> Above, s is created with automatic storage duration.
>
> How to interface to this from Ada? I see two options:
Something like:
type S is record ... end record;
pragma Convention (C, S);
X : aliased S;
init (X'Access); -- or possibly 'Unchecked_Access
foo (X'Access); -- or ...
Best to avoid heap management when you can.
- Bob
next prev parent reply other threads:[~2008-02-25 23:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-25 21:17 Interfacing to C: big structures Maciej Sobczak
2008-02-25 23:26 ` Randy Brukardt
2008-02-25 23:26 ` Randy Brukardt
2008-02-27 13:23 ` Maciej Sobczak
2008-02-25 23:26 ` Randy Brukardt
2008-02-25 23:43 ` Robert A Duff [this message]
2008-02-26 13:53 ` Stephen Leake
2008-02-26 21:12 ` Randy Brukardt
2008-02-26 2:36 ` Steve
2008-02-26 12:00 ` Alex R. Mosteo
2008-02-26 14:05 ` Robert A Duff
2008-02-26 15:19 ` Alex R. Mosteo
2008-02-26 15:33 ` Robert A Duff
2008-02-26 16:21 ` Alex R. Mosteo
2008-02-27 1:28 ` Robert A Duff
2008-03-10 1:38 ` David Thompson
2008-02-26 17:35 ` Adam Beneschan
2008-02-26 19:47 ` Simon Wright
2008-02-26 21:14 ` Randy Brukardt
2008-02-27 1:40 ` Robert A Duff
2008-02-27 17:12 ` Adam Beneschan
2008-02-27 20:37 ` Simon Wright
2008-02-28 11:30 ` Alex R. Mosteo
2008-02-28 15:53 ` Robert A Duff
2008-02-29 10:45 ` Alex R. Mosteo
2008-02-27 1:37 ` Robert A Duff
2008-02-27 13:49 ` Maciej Sobczak
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