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From: Simon Wright <simon@pushface.org>
Subject: Re: How to pass two dimensional arrays to C
Date: Sat, 29 Jul 2006 08:11:47 +0100
Date: 2006-07-29T08:11:47+01:00	[thread overview]
Message-ID: <m24px0sx58.fsf@grendel.local> (raw)
In-Reply-To: IDyyg.862875$084.34150@attbi_s22

"Jeffrey R. Carter" <spam.not.jrcarter@acm.not.spam.org> writes:

> No, you need to create a collection of C-compatible 1D arrays, put
> the rows of Z into them, and store C-compatible pointers to them in
> the C-compatible 1D array of pointers. More like

I would have thought that, provided you choose the right orientation,
the rows would be as expected by C (ie contiguous values).

In

   type M is array (Integer range <>, Integer range <>) of Float;
   --               Column            Row

the Row elements would be contiguous? (I can see there _might_ be
compiler differences, and ISTR that GNAT has a way of specifying
Fortran conventions).

(perhaps that should be "aliased Float")



  reply	other threads:[~2006-07-29  7:11 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-28 11:06 How to pass two dimensional arrays to C Jerry
2006-07-28 12:27 ` Jeffrey Creem
2006-07-28 12:27 ` Dmitry A. Kazakov
2006-07-28 16:53 ` Adam Beneschan
2006-07-28 20:15 ` Jeffrey R. Carter
2006-07-28 20:46 ` Jerry
2006-07-28 21:14   ` Jeffrey Creem
2006-07-28 22:54   ` Björn Persson
2006-07-29  1:14     ` Jeffrey R. Carter
2006-07-29  7:11       ` Simon Wright [this message]
2006-07-29 22:12         ` Jeffrey R. Carter
2006-07-30 11:18           ` Simon Wright
2006-07-30 11:20           ` Simon Wright
2006-07-29  4:19   ` REH
2006-07-29  4:28     ` REH
2006-07-29  4:30       ` REH
2006-08-14  6:59     ` Dave Thompson
2006-07-29  5:47 ` REH
2006-08-02  8:20 ` Jerry
2006-08-02  9:03   ` Dmitry A. Kazakov
2006-08-02 10:22     ` Jerry
2006-08-02 18:25   ` Björn Persson
2006-08-05  1:03 ` Jerry
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