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From: Gerard Jungman <jungman@lanl.gov>
To: gsl-discuss@sourceware.org
Subject: Re: simplicity vs. efficiency of algorithms in GSL
Date: Thu, 16 Oct 2008 22:20:00 -0000	[thread overview]
Message-ID: <1224195286.14338.169.camel@bellerophon.lanl.gov> (raw)
In-Reply-To: <200810150045.47237.franke.daniel@gmail.com>


On Wed, 2008-10-15 at 00:45 +0200, Daniel Franke wrote:

> F2003 Standard (final draft):
> http://www.j3-fortran.org/doc/year/04/04-007.pdf

> 
> Does this help?

Yes. Thanks for the link. Note 15.18 makes sense, there's really
nothing else that would work. I'm more concerned with
Note 15.16, which reads

  "An element of a multi-dimensional C array is an array type,
   so a Fortran array of rank one is not interoperable with a
   multidimensional C array."

I'm note sure what this means. My understanding of the C standard
for data layout is that a multi-dimensional C array is stored
continuously in the obvious fashion. In other words, a multi-dimensional
C array is completely interoperable with a rank-one C array. So why
wouldn't it be interoperable with a rank-one fortran array? They're
both just the obvious continuous list of data. Anyway, this is
not a central issue; I'm just wondering what I am missing with
that statement.

--
G. Jungman


  reply	other threads:[~2008-10-16 22:20 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <200809221621.54890.emanuele.passera@treuropa.com>
     [not found] ` <20080922162507.GA29877@hippogriff.homeunix.org>
2008-09-22 18:32   ` Tuomo Keskitalo
2008-09-22 19:48     ` Patrick Alken
2008-09-22 21:01       ` Robert G. Brown
2008-09-23 21:52         ` Gerard Jungman
2008-09-24 21:19           ` Brian Gough
2008-09-25  0:07             ` Gerard Jungman
2008-09-25  3:07               ` Andrew W. Steiner
2008-09-25  3:50               ` Z F
2008-09-26 21:48               ` Brian Gough
2008-09-27  6:12                 ` Jochen Küpper
2008-09-29 13:35                   ` Brian Gough
2008-10-07 21:14                   ` Gerard Jungman
2008-10-09 18:38                     ` Tuomo Keskitalo
2008-10-09 18:57                       ` Frank Reininghaus
2008-10-09 21:17                         ` Gerard Jungman
2008-10-10  0:05                       ` Gerard Jungman
2008-10-10 15:50                         ` Robert G. Brown
2008-10-10 18:47                           ` James Amundson
2008-10-11  2:48                         ` Brian Gough
2008-10-14 21:33                           ` Gerard Jungman
2008-10-14 22:41                             ` Daniel Franke
2008-10-16 22:20                               ` Gerard Jungman [this message]
2008-10-17 13:27                             ` Brian Gough

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