From owner-sc22wg5@open-std.org Fri Sep 23 12:46:22 2005 Return-Path: X-Original-To: sc22wg5-domo2 Delivered-To: sc22wg5-domo2@open-std.org Received: by open-std.org (Postfix, from userid 521) id 2430F1ECB2; Fri, 23 Sep 2005 14:46:22 +0200 (CEST) X-Original-To: sc22wg5@open-std.org Delivered-To: sc22wg5@open-std.org Received: from dkuug.dk (ptah.dkuug.dk [195.215.30.66]) by open-std.org (Postfix) with ESMTP id 40F501EBAC for ; Fri, 23 Sep 2005 14:46:19 +0200 (CEST) Received: from balin.rl.ac.uk (balin.rl.ac.uk [130.246.135.155]) by dkuug.dk (8.12.10/8.9.2) with ESMTP id j8NCkIid014283 for ; Fri, 23 Sep 2005 14:46:26 +0200 (CEST) (envelope-from j.k.reid@rl.ac.uk) X-RAL-MFrom: X-RAL-Connect: Received: from jkr.cse.rl.ac.uk (jkr.cse.rl.ac.uk [130.246.9.202]) by balin.rl.ac.uk (8.12.8/8.12.8) with ESMTP id j8NCPbxb007412; Fri, 23 Sep 2005 13:25:37 +0100 Received: from rl.ac.uk (localhost.localdomain [127.0.0.1]) by jkr.cse.rl.ac.uk (8.12.10/8.12.8) with ESMTP id j8NCWOPu007223; Fri, 23 Sep 2005 13:32:24 +0100 Message-ID: <4333F5D8.4000306@rl.ac.uk> Date: Fri, 23 Sep 2005 13:32:24 +0100 From: John Reid Reply-To: j.k.reid@rl.ac.uk Organization: Rutherford Appleton Laboratory User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4.3) Gecko/20041005 X-Accept-Language: en-us, en MIME-Version: 1.0 To: WG5 Subject: [Fwd: Enumerations in fortran 2003] Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.39 X-Spam-Score: 0.496 () MAILTO_TO_SPAM_ADDR Sender: owner-sc22wg5@open-std.org Precedence: bulk Dear Gaurav, Because of spam, we have had to make the WG5 list closed, so I am forwarding this to it. If you would like to join the list please ask David Muxworthy John Reid. Date: Fri, 23 Sep 2005 16:51:41 +0530 From: Gaurav Gautam Reply-To: Gaurav Gautam To: sc22wg5@dkuug.dk Subject: Enumerations in fortran 2003 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-Spam-Score: 0.999 () FROM_ENDS_IN_NUMS Hi, I am a compiler developer and I am working to implement ENUMERATORS and ENUMERATIONS in a compiler. I have a few queries related to interoperability of ENUMERATIONS with C. I think this is the right place to discuss this. In case it is not, please tell me as to where can i discuss my queries about the Fortran standard. The J3/03-007R2 Final Committee Draft OCT 2003 says that "For an enumeration, the kind is selected such that an integer type with that kind is interoperable (15.2.1) with the corresponding C enumeration type." I am not able to clearly understand the above description. Can anyone please elaborate this in detail. My doubt is that since the enumeration in fortran is a set of enumerators. We cannot declare an object of a fortran enumeration type, what does "kind of an enumeration means". For example Enum e { a, b, c } We have an enum type "e", which can have some type. But since we don't have any enum type in fortran, but only a list of enumerators in fortran, what does standard wants to say in the words " For an enumeration, the kind is selected". Thanks Gaurav