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 8788ABC69 for ; Wed, 15 Aug 2007 14:33:48 +0200 (CEST) Received: from mail12.bluewin.ch (mail12.bluewin.ch [195.186.19.61]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id l7FCXmaR027114 for ; Wed, 15 Aug 2007 14:33:48 +0200 Received: from [10.0.1.2] (85.0.97.88) by mail12.bluewin.ch (Bluewin 7.3.121) id 469C78FC005C9592 for caml-list@yquem.inria.fr; Wed, 15 Aug 2007 12:33:47 +0000 Mime-Version: 1.0 (Apple Message framework v752.2) In-Reply-To: <200708150133.23573.jon@ffconsultancy.com> References: <20070814101535.GA14485@furbychan.cocan.org> <200708142144.15414.jon@ffconsultancy.com> <20070814230940.GB11589@takhisis.invalid> <200708150133.23573.jon@ffconsultancy.com> Content-Type: text/plain; charset=ISO-8859-1; delsp=yes; format=flowed Message-Id: Content-Transfer-Encoding: quoted-printable From: =?ISO-8859-1?Q?Daniel_B=FCnzli?= Subject: Re: [Caml-list] Weak hash table for attaching extra data to an object Date: Wed, 15 Aug 2007 14:33:48 +0200 To: caml-list@yquem.inria.fr X-Mailer: Apple Mail (2.752.2) X-Miltered: at concorde with ID 46C2F2AC.001 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; bunzli:01 buenzli:01 hash:01 markus:01 mottl:01 caml-list:01 data:02 epfl:02 parameter:02 daniel:04 daniel:04 types:05 ecrit:06 weak:06 table:93 Le 15 ao=FBt 07 =E0 02:33, Jon Harrop a =E9crit : > I think Markus Mottl once said that all libraries should include =20 > phantom types... I don't know if he said that however the point of a phantom type is =20 that there is no concrete value associated to it -- the phantom =20 parameter isn't used in the type definition. Hence phantoms are =20 useless if you need to decorate a type. Daniel