From owner-sc22wg5@open-std.org Fri Nov 14 02:44:33 2008 Return-Path: X-Original-To: sc22wg5-dom7 Delivered-To: sc22wg5-dom7@www2.open-std.org Received: by www2.open-std.org (Postfix, from userid 521) id BE588CA5FE5; Fri, 14 Nov 2008 02:44:33 +0100 (CET) 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 www2.open-std.org (Postfix) with ESMTP id EFFFDC178D6 for ; Fri, 14 Nov 2008 02:44:32 +0100 (CET) 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 mAE1iUPV017871 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Thu, 13 Nov 2008 19:44:30 -0600 (CST) 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 mAE1iSSE000862; Thu, 13 Nov 2008 19:44:29 -0600 Received: from 44.240.30.172.in-addr.arpa ([192.168.239.46]) by CFEXFE01.us.cray.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.3959); Thu, 13 Nov 2008 19:33:19 -0600 Message-ID: <491CD5CB.4030003@cray.com> Date: Thu, 13 Nov 2008 19:35:07 -0600 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: Robert.Corbett@sun.com Cc: WG5 Subject: Re: (j3.2006) (SC22WG5.3673) [ukfortran] N1755: Request for new features from MPI Forum References: <49137AD3.1070402@lrz.de> <20081111224927.8201CC178D9@www2.open-std.org> <20081111234923.517C5C178D6@www2.open-std.org> <20081112001017.26EB3C178D6@www2.open-std.org> <20081112091351.6581CC178D9@www2.open-std.org> <491BCB6F.8040406@sun.com> <20081113072205.9063AC178D9@www2.open-std.org> <491BDF12.8050108@sun.com> In-Reply-To: <491BDF12.8050108@sun.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Nov 2008 01:33:19.0869 (UTC) FILETIME=[F99B72D0:01C945F8] X-Cray-VirusStatus: clean Sender: owner-sc22wg5@open-std.org Precedence: bulk Robert Corbett wrote: > The committe might have intended PROTECTED to be something other than > a promise made by the programmer, but the standard as written makes it > exactly that. Just because INTENT(IN) has a similar defect does not > make it any the less true. > > The standard as written allows a compiler to assume that a variable > that has the PROTECTED attribute is not definable outside the module, > but it allows programs to be written that define the variable outside > of the module and it does not require the processor to detect the error. > If a programmer writes a program that defines the variable outside the > module, it is not a standard-conforming program, and so a > standard-conforming processor is free to do anything whatever when > compiling or executing the program. The onus is on the programmer to > avoid defining the variable outside the module. > > The first sentence says the standard allows a programmer to do X. The second one seems to say that IF the programmer does X, the program is not standard conforming. That seems a bit contradictory. 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