From owner-sc22wg5@open-std.org Fri Jul 25 01:13:36 2008 Return-Path: X-Original-To: sc22wg5-dom6 Delivered-To: sc22wg5-dom6@open-std.org Received: by open-std.org (Postfix, from userid 521) id A7587DA837; Fri, 25 Jul 2008 01:13:36 +0200 (CET DST) X-Original-To: sc22wg5@open-std.org Delivered-To: sc22wg5@open-std.org Received: from mail1.cray.com (mail1.cray.com [136.162.0.111]) by open-std.org (Postfix) with ESMTP id 897D7393D9 for ; Fri, 25 Jul 2008 01:13:21 +0200 (CET DST) Received: from beaver.us.cray.com (beaver.us.cray.com [172.30.74.51]) by mail1.cray.com (8.13.6/8.13.3/gw-5323) with ESMTP id m6ONDJD2022523 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Thu, 24 Jul 2008 18:13:19 -0500 (CDT) Received: from CFEXFE01.us.cray.com (cfexfe01.us.cray.com [172.30.74.93]) by beaver.us.cray.com (8.13.8/8.13.3/hub-5273) with ESMTP id m6ONDGHZ028874 for ; Thu, 24 Jul 2008 18:13:18 -0500 Received: from mh-dhcp-172-31-20-57.us.cray.com ([172.31.20.57]) by CFEXFE01.us.cray.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.3959); Thu, 24 Jul 2008 18:13:15 -0500 Message-ID: <48890C92.3020308@cray.com> Date: Thu, 24 Jul 2008 18:13:22 -0500 From: Bill Long Reply-To: longb@cray.com Organization: Cray Inc. User-Agent: Thunderbird 2.0.0.9 (Macintosh/20071031) MIME-Version: 1.0 To: sc22wg5 Subject: Assumed-type and Assumed-rank extensions for C Interop TR. Content-Type: multipart/mixed; boundary="------------030203000100050803020906" X-OriginalArrivalTime: 24 Jul 2008 23:13:15.0787 (UTC) FILETIME=[DA1E4DB0:01C8EDE2] X-Cray-VirusStatus: clean Sender: owner-sc22wg5@open-std.org Precedence: bulk This is a multi-part message in MIME format. --------------030203000100050803020906 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit At the last J3 meeting there was discussion about how to better interoperate with C functions that have void * arguments. This was mainly in the context of cooperation with the MPI committee that is trying to design a better Fortran interface module for the MPI library. However, the basic issue is wider than just MPI. Debate in May narrowed down the list of options to 3 (see paper 08-185r1). Attached is a draft of a proposal for one of these options, somewhat expanded. This was the option that, at least to me, seemed to have the fewest vocal opponents. The original mandate for the TR did not include a feature like this, so the first question is whether WG5 supports this addition. Comments on the proposal itself are also welcome. The MPI folks prefer adding this feature to the TR rather than making this part of the Base f08, on the grounds that a vendor could implement the TR as an addition to f03, as it does not depend on any of the new f08 features. This would enable earlier access. As before, fell free to solicit input from others not on the WG5 list. Cheers, Bill -- Bill Long longb@cray.com Fortran Technical Support & voice: 651-605-9024 Bioinformatics Software Development fax: 651-605-9142 Cray Inc., 1340 Mendota Heights Rd., Mendota Heights, MN, 55120 --------------030203000100050803020906 Content-Type: application/octet-stream; name="typestar.txt" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="typestar.txt" UHJvcG9zYWwgdG8gYWRkIFRZUEUoKikgdG8gRm9ydHJhbi4KClRoZSBkZXNpcmUgZm9yIGEg c2ltcGxlIG1lY2hhbmlzbSB0byBpbnRlcm9wZXJhdGUgd2l0aCBDIG9iamVjdHMKZGVjbGFy ZWQgYXMgKHZvaWQgKikgaGFzIGxlYWQgdG8gc2V2ZXJhbCBwcm9wb3NlZCBtb2RpZmljYXRp b25zIHRvCkZvcnRyYW4uIE9uZSBvZiB0aGUgbW9zdCBkaXJlY3Qgc29sdXRpb25zIGlzIHRv IHByb3ZpZGUgYXMgZXNzZW50aWFsbHkKZXF1aXZhbGVudCBkZWNsYXJhdGlvbiBpbiBGb3J0 cmFuIGFuZCBsaW1pdCBpdHMgYXNzb2NpYXRlZApzZW1hbnRpY3MuIFRoZSBmb3JtIG9mIHRo ZSBkZWNsYXJhdGlvbiBwcm9wb3NlZCBpcyBUWVBFKCopIHdoaWNoCmV4dGVuZHMgdGhlIGFs cmVhZHkgZXhpc3RpbmcgVFlQRSguLi4pIHN5bnRheCwgYW5kIGJvcnJvd3MgdGhlCiJhc3N1 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