On Jun 10, 2014, at 9:41 AM, Jeff Squyres (jsquyres) <[email protected]> wrote:

Same question as I asked before: Is 2003 or 2008+TS29113 required for SIZEOF? I have no knowledge of when INTERFACE blocks were added to Fortran.

Interface blocks were added in F90.

I'm asking this because DIMENSION(..) is *useful* to implement MPI_SIZEOF succinctly/easily, but it is not *required*.

MPI_SIZEOF is most easily written with the new features, but it is possible (tedious) to write a version without. Cheers, Bill Bill Long [email protected] Fortran Technical Suport & voice: 651-605-9024 Bioinformatics Software Development fax: 651-605-9142 Cray Inc./ Cray Plaza, Suite 210/ 380 Jackson St./ St. Paul, MN 55101