From: Martin Krischik <martin@krischik.com>
Subject: Re: Thick Ada bindings to C Win32
Date: Fri, 26 Nov 2004 10:50:16 +0100
Date: 2004-11-26T10:50:16+01:00 [thread overview]
Message-ID: <1810244.ahSE8CPTEK@linux1.krischik.com> (raw)
In-Reply-To: sa4vfbty0rk.fsf@snoopy.apana.org.au
Brian May wrote:
>>>>>> "Jeffrey" == Jeffrey Carter <spam@spam.com> writes:
>
> Jeffrey> Assuming that Lp[c?]void is a convention-C access type,
> Jeffrey> you can safely convert between convention-C access types
> Jeffrey> using Unchecked_Conversion. Your best bet may be to
> Jeffrey> declare such an access type designating a Byte_Array
> Jeffrey> (maybe you want Storage_Array here?), declare Item_Buffer
> Jeffrey> aliased, store its 'Unchecked_Access in a variable of the
> Jeffrey> appropriate type, and convert it to the Win32 access
> Jeffrey> type.
>
> The most obvious problem is as soon as I make Item_Buffer aliased, I
> need to make a complete copy of it.
>
> Question:
>
> Is S'Address the same as S(S'First)'Address?
Depends on the compiler used and if the array is definite or indefinite.
Remember: Indefinite Arrays need to store 'First and 'Last.
With GNAT I have succesfully converted definite arrays from C to Ada using
'Address.
With Regards
Martin
--
mailto://krischik@users.sourceforge.net
http://www.ada.krischik.com
next prev parent reply other threads:[~2004-11-26 9:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-10 2:41 Thick Ada bindings to C Win32 Brian May
2004-11-10 4:36 ` tmoran
2004-11-10 19:31 ` Jeffrey Carter
2004-11-12 1:51 ` Brian May
2004-11-12 12:09 ` Nick Roberts
2004-11-12 17:57 ` tmoran
2004-11-12 18:50 ` Martin Krischik
2004-11-12 23:29 ` Brian May
2004-11-13 0:51 ` Jeffrey Carter
2004-11-25 23:19 ` Brian May
2004-11-26 9:50 ` Martin Krischik [this message]
2004-11-26 12:23 ` Frank J. Lhota
2004-11-26 19:19 ` Jeffrey Carter
2004-11-27 23:56 ` Brian May
2004-11-28 18:57 ` Jeffrey Carter
2004-11-28 23:45 ` Brian May
2004-11-29 7:50 ` Message-ID: <sa4vfbpzgfu.fsf@snoo tmoran
2004-11-29 14:34 ` Thick Ada bindings to C Win32 Frank J. Lhota
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