From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled version=3.1.3 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 B9EE6BC6B for ; Tue, 5 Jun 2007 00:44:21 +0200 (CEST) Received: from ns.graphicgalerie.com (ns.graphicgalerie.com [88.191.26.11]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id l54MiLDs001403 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 5 Jun 2007 00:44:21 +0200 Received: from polo.concept-micro.com (ABordeaux-103-1-3-141.w80-15.abo.wanadoo.fr [80.15.128.141]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ns.graphicgalerie.com (Postfix) with ESMTP id 9A8EEE1C001 for ; Tue, 5 Jun 2007 00:44:16 +0200 (CEST) Date: Tue, 5 Jun 2007 00:44:13 +0200 From: Pierre =?ISO-8859-15?B?RXRjaGVtYe906Q==?= To: caml-list@yquem.inria.fr Subject: Re: [Caml-list] Comparison of OCaml and MLton for numerics Message-Id: <20070605004413.5987faf5.petchema@concept-micro.com> In-Reply-To: <1180980488.6220.18.camel@rosella.wigram> References: <5195a210705302250u6a9e5adey4ed857480f9e5cd8@mail.gmail.com> <200706011813.48515.jon@ffconsultancy.com> <46641BC1.9090305@cs.umd.edu> <200706041539.03286.jon@ffconsultancy.com> <1180980488.6220.18.camel@rosella.wigram> Organization: Concept Micro 33 SARL X-Mailer: Sylpheed version 2.3.0beta5 (GTK+ 2.8.20; i486-pc-linux-gnu) X-TRP: honey@concept-micro.com X-Face: "1 a écrit : > On Mon, 2007-06-04 at 15:39 +0100, Jon Harrop wrote: > > > A functional array implemented as a balanced binary tree needs the number of > > elements (size) of a sub tree just to index into the tree. > > It might be worth considering a functional version of Judy arrays: > > http://judy.sourceforge.net/ The VList looks interesting too: O(1) operations (amortized), and functional; Someone even already wrote a pure OCaml implementation: http://www.imada.sdu.dk/~bardur/personal/45-programs/