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 D1117BC6B for ; Sat, 28 Jul 2007 08:12:43 +0200 (CEST) Received: from yquem.inria.fr (yquem.inria.fr [128.93.8.37]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id l6S6ChL9007333 for ; Sat, 28 Jul 2007 08:12:43 +0200 Received: by yquem.inria.fr (Postfix, from userid 25991) id 732ADBC6B; Sat, 28 Jul 2007 08:12:43 +0200 (CEST) Date: Sat, 28 Jul 2007 08:12:43 +0200 From: Daniel de Rauglaudre To: caml-list@inria.fr Subject: Re: [Caml-list] Void type? Message-ID: <20070728061240.GA5138@yquem.inria.fr> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.9i X-Miltered: at concorde with ID 46AADE5B.001 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; rauglaudre:01 rauglaudre:01 ocaml:01 simulate:01 syntax:01 camlp:01 syntax:01 28,:98 wrote:01 caml-list:01 revised:02 daniel:04 daniel:04 jul:05 inria:06 Hi, On Sat, Jul 28, 2007 at 12:14:40AM -0400, Stefan Monnier wrote: > > Is there a void type in OCaml (i.e. a type which has no values), or a way to > simulate it? You can do that with the revised syntax in Camlp5 : type t = []; No equivalent in normal syntax. -- Daniel de Rauglaudre http://pauillac.inria.fr/~ddr/