Yes. The #define and typedef ways can complement each other. The #define way will actually not change anything once the preprocessor is run - ints will literally be ints, etc. This would be the mildest way of introducing MPI_Count into the code. The typedef will make the code look different, at least syntactically. If it's set to int, it will be almost, but not quite like #define. It it's set to long,it will be what we want to have for 64-bit ints (provided we want signed counts, that is). By the way, has this signed vs unsigned been discussed in this context? -----Original Message----- From: mpi-22-bounces_at_[hidden] [mailto:mpi-22-bounces_at_[hidden]] On Behalf Of Narasimhan, Kannan Sent: Wednesday, February 11, 2009 4:58 PM To: MPI 2.2 Subject: Re: [Mpi-22] #117: Define a new MPI_Count Datatype The current proposal has a typedef instead of #define. Are there any specific reasons for preferring the pre-processor macro approach? Thanx! Kannan -----Original Message----- From: mpi-22-bounces_at_[hidden] [mailto:mpi-22-bounces_at_[hidden]] On Behalf Of Supalov, Alexander Sent: Wednesday, February 11, 2009 6:44 AM To: MPI 2.2 Subject: Re: [Mpi-22] #117: Define a new MPI_Count Datatype Hi, Thanks. I added an offline comment regarding the #define trick for MPI-2.2. Has this been addressed? Best regards. Alexander -----Original Message----- From: mpi-22-bounces_at_[hidden] [mailto:mpi-22-bounces_at_[hidden]] On Behalf Of Narasimhan, Kannan Sent: Wednesday, February 11, 2009 12:54 AM To: MPI 2.2 Subject: [Mpi-22] #117: Define a new MPI_Count Datatype I've updated Ticket #117 ( Define a new MPI_Count Datatype ) to address the issues raised at the MPI Forum Meeting. Is there any other concern that is not addressed in this ticket? Thanx! Kannan _______________________________________________ mpi-22 mailing list mpi-22_at_[hidden] http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-22 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. _______________________________________________ mpi-22 mailing list mpi-22_at_[hidden] http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-22 _______________________________________________ mpi-22 mailing list mpi-22_at_[hidden] http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-22 --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.