However, forbidding it being done everywhere isn't a major restriction.

Yes, this was decided already in MPI-1. ----- Original Message -----

From: "N.M. Maclaren" <[email protected]> To: "Main MPI Forum mailing list" <[email protected]> Sent: Saturday, August 25, 2012 12:29:39 AM Subject: Re: [Mpi-forum] Reserved MPI_ prefix & namespace in C and Fortran On Aug 24 2012, Jeremiah Willcock wrote:

...

Forbidding use as a local name is important if you want to use that name as a macro in C or C++ (or Fortran with a CPP-like preprocessor). Thus, it might make sense to do that for at least some names as well, at least for the C and mpif.h bindings.

It is needed only in a translation unit (C) or program unit (Fortran) where a MPI module is used or a MPI header is included. There is no neeed to restrict it in other parts of the code.

However, forbidding it being done everywhere isn't a major restriction.

Regards, Nick Maclaren.

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