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 474DEBB83 for ; Fri, 18 Aug 2006 16:13:11 +0200 (CEST) Received: from pauillac.inria.fr (pauillac.inria.fr [128.93.11.35]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id k7IEDAe0003720 for ; Fri, 18 Aug 2006 16:13:10 +0200 Received: from nez-perce.inria.fr (nez-perce.inria.fr [192.93.2.78]) by pauillac.inria.fr (8.7.6/8.7.3) with ESMTP id QAA08466 for ; Fri, 18 Aug 2006 16:13:09 +0200 (MET DST) Received: from kraid.nerim.net (smtp-105-friday.nerim.net [62.4.16.105]) by nez-perce.inria.fr (8.13.6/8.13.6) with ESMTP id k7I7AHDh002783 for ; Fri, 18 Aug 2006 09:10:17 +0200 Received: from karryall.dnsalias.org (karryall.dnsalias.org [213.41.240.180]) by kraid.nerim.net (Postfix) with ESMTP id 479C74111B; Fri, 18 Aug 2006 09:10:17 +0200 (CEST) Received: by karryall.dnsalias.org (Postfix, from userid 500) id E9A70596D0B; Fri, 18 Aug 2006 09:10:17 +0200 (CEST) From: Olivier Andrieu MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17637.26585.469953.932380@karryall.dnsalias.org> Date: Fri, 18 Aug 2006 09:10:17 +0200 To: Bardur Arantsson Cc: caml-list@inria.fr Subject: Re: [Caml-list] Re: Help interfacing with C In-Reply-To: References: X-Mailer: VM 7.19 under Emacs 21.4.1 X-Miltered: at concorde with ID 44E5CAF6.000 by Joe's j-chkmail (http://j-chkmail.ensmp.fr)! X-Spam: no; 0.00; andrieu:01 oandrieu:01 interfacing:01 pairs:01 descriptors:01 ocaml:01 unix:01 hashtbl:01 2006:98 wrote:01 caml-list:01 nerim:01 int:01 int:01 define:01 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 Bardur Arantsson [Thursday 17 August 2006] : > > Nathaniel Gray wrote: > > Hi folks, > [--snip--] > > have select work on (file_descr * 'a) pairs instead of plain file > > descriptors. > > It's much easier than that; just define a conversion in OCaml: > > external file_descr_to_int : file_descr -> int = "%identity"; > external int_to_file_descr : int -> file_descr = "%identity"; That will only work on Unix: on Windows, a file_descr is not an int but a custom block. file_descr work fine as keys for a Hashtbl though. -- Olivier