From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by yquem.inria.fr (Postfix) with ESMTP id AEB31BB83 for ; Fri, 14 Apr 2006 20:07:18 +0200 (CEST) Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35]) by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id k3EI7IMV019660 for ; Fri, 14 Apr 2006 20:07:18 +0200 Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id UAA22629 for ; Fri, 14 Apr 2006 20:07:11 +0200 (MET DST) Received: from mail.libertysurf.net (mx-out.libertysurf.net [213.36.80.91]) by concorde.inria.fr (8.13.0/8.13.0) with ESMTP id k3EI79B9019626 for ; Fri, 14 Apr 2006 20:07:11 +0200 Received: from dyn-83-156-171-225.ppp.tiscali.fr (83.156.171.225) by mail.libertysurf.net (7.2.071) id 442B93040034D0BC; Fri, 14 Apr 2006 20:09:33 +0200 From: Florent Monnier Organization: l'Association Linux-Nantes To: caml-list@inria.fr Subject: Re: Bigarray.c_layout Date: Fri, 14 Apr 2006 20:07:54 +0200 User-Agent: KMail/1.8.2 References: <200604141604.29147.fmonnier@linux-nantes.fr.eu.org> <20060414.193255.24118599.debian00@tiscali.fr> In-Reply-To: <20060414.193255.24118599.debian00@tiscali.fr> MIME-Version: 1.0 Content-Disposition: inline Message-Id: <200604142007.54690.fmonnier@linux-nantes.fr.eu.org> X-Face: "`cRNH1ww*pA7BMG\%C8RcGZR33F%q#d~:5U8b[K-NbYLSW_wpx@wk**lzqX3\F'a|gyP"K /emS.&rsSu'a7OiJH&d?,Z6OxW_L}I"z%\><#5LL%uQXl"QY@~9|XyM7{`tAq?Gp@ul&F'# Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Miltered: at concorde with ID 443FE4D6.001 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Miltered: at concorde with ID 443FE4CD.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; bigarray:01 data:02 library:03 layout:05 layout:05 elements:06 arr:09 arr:09 example:10 changes:12 but:13 instead:13 can't:16 use:16 ordered:82 X-Spam-Checker-Version: SpamAssassin 3.0.3 (2005-04-27) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled version=3.0.3 > Why can't you just write arr.{j,i,k} instead of arr.{i,j,k} ? No it is really the ordering of the data which changes, let's see an example: In the library I use the elements are ordered like this in the 1dim C array: 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 but with the c_layout of big array the datas are ordered like this : 01 05 09 13 17 21 02 06 10 14 18 22 03 07 11 15 19 23 04 08 12 16 20 24 --