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From: Nick Roberts <nick.roberts@acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Ada equivalent for C-pointer?
Date: Sat, 15 Jan 2005 18:46:27 +0000
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Date: 2005-01-15T18:46:27+00:00
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Simon Wright <simon@pushface.org> wrote:

> Nick Roberts <nick.roberts@acm.org> writes:
> 
> > I think the 'in out' mode would work with GNAT/GCC, but I'd suggest
> > testing it to make sure. I suppose using the 'access' mode might be
> > clearer, and it might be slightly more efficient.
> 
> with Interfaces.C; function Wibble (Number: in out Interfaces.C.int)
> return Interfaces.C.int; pragma Import(C,Wibble,"wibble");
> 
> smaug.pushface.org[4]$ gnatgcc wibble.ads wibble.ads:2:18: functions can
> only have "in" parameters

Of course, that was stupid of me. It must either be a procedure or use an
access parameter. Sorry.

-- 
Nick Roberts