From rz48@rz.uni-karlsruhe.de Wed Jan 29 20:13:23 1997 Received: from nz11.rz.uni-karlsruhe.de (nz11.rz.uni-karlsruhe.de [129.13.64.7]) by dkuug.dk (8.6.12/8.6.12) with ESMTP id UAA09065 for ; Wed, 29 Jan 1997 20:13:16 +0100 Message-Id: <199701291913.UAA09065@dkuug.dk> Received: from ry71.rz.uni-karlsruhe.de by nz11.rz.uni-karlsruhe.de with SMTP (PP); Wed, 29 Jan 1997 18:58:34 +0100 Received: by ry71.rz.uni-karlsruhe.de (1.38.193.4/16.2) id AA04371; Wed, 29 Jan 1997 18:58:32 +0100 Subject: descriptors To: mpi-bind@mcs.anl.gov, sc22wg5@dkuug.dk Date: Wed, 29 Jan 1997 18:58:32 +0100 (CET) In-Reply-To: <199701291719.SAA08587@dkuug.dk> from "Malcolm Cohen" at Jan 29, 97 05:12:18 pm From: hennecke@rz.uni-karlsruhe.de (Michael Hennecke) Reply-To: hennecke@rz.uni-karlsruhe.de (Michael Hennecke) X-Mailer: ELM [version 2.4 PL23] Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 7bit Content-Length: 1509 According to Malcolm Cohen: > The important thing is that there must be "a syntax on the Fortran side" that > tells the Fortran compiler that it must pass one of these dope vectors > containing unnecessary information. Well, that syntax has been in the Subject line: PASS_BY("descriptor") is the proposed extension of the Interop TR. Of course only in a BIND(C) interface. And calling these dope vectors' contents "unnecessary information" IMO is wrong by definition: they must contain all the information *necessary* for the C side to access the object/expression described by that descriptor. My first point was that the problem here is to achieve agreement about what really *is* necessary, and the current discussion proves me right... Thanks, Michael PS: Concerning cluttering of the namespace: this is not important for the Fortran programmer since these access functions would clutter the C side's name space :-) ====================================================================== Michael Hennecke http://www.uni-karlsruhe.de/~Michael.Hennecke/ ---------------------------------------------------------------------- University of Karlsruhe RFC822: hennecke@rz.uni-karlsruhe.de Computing Center (G20.21 R210) No longer on BITNET :-( Zirkel 2 * P.O. Box 69 80 Phone: +49 721 608-4862 D-76128 Karlsruhe Fax: +49 721 32550 ======================================================================