[Mpi-22] new datatypes proposal on the wiki

[Jeff Squyres]

On Aug 21, 2008, at 9:02 PM, Dave Goodell wrote:

> I have submitted a new 2.2 proposal to add several new datatypes to  
> the C and C++ bindings, most of them in order to keep up with the  
> C99 standard.  This proposal also adds MPI_AINT and MPI_OFFSET as  
> predefined datatypes.  Comments are welcome.
>
> https://svn.mpi-forum.org/trac/mpi-forum-web/wiki/mpi22/NewPredefinedDatatypes

Dave -- I like the idea of [u]int[x]_t types; that would certainly be  
helpful to some apps.

I'm a little confused on your discussion about how bool and complex  
may be represented differently in each language.  Are you saying that  
MPI_BOOL may be a different thing that [the already-existing] MPI::BOOL?

Also, MPI_COMPLEX and MPI_DOUBLE_COMPLEX both already exist for the  
corresponding Fortran types (I can't remember offhand --  
MPI_LONG_DOUBLE_COMPLEX may exist already, too).  How do you propose  
to reconcile this conflict?


-- 
Jeff Squyres
Cisco Systems