I didn't write that code so I'm not sure but I imagine one can figure it out from http://code.google.com/p/m-a-d-n-e-s-s/source/browse/local/trunk/src/lib/wor.... I confess that I know almost nothing about C++ exceptions. I just looked at MADNESS and tried to figure out how I could convert it (backwards) to using the C bindings. Jeff On Tue, Nov 1, 2011 at 5:09 PM, Bronis R. de Supinski <[email protected]> wrote:

What do they set as the error handler? It is not clear to me that this code actually does anything...

On Tue, 1 Nov 2011, Jeff Hammond wrote:

...

Can someone explain how one can migrate (backwards) from the C++ to the C bindings if they currently use MPI::Exception in a try-catch block like this:

=================================== � � � try { � � � � � ((ThreadBase*)(self))->run(); � � � } � � � catch (const MPI::Exception& e) { � � � � � error("caught an MPI exception"); � � � } ===================================

This is taken from MADNESS, btw.

I think it is only fair for those who want to kill the C++ bindings to provide a clear description of how this will not break existing codes that use C++ bindings. �Clearly, many things, e.g. MPI::BYTE -> MPI_BYTE, are trivial, but I see error handling as being fundamentally nontrivial.

Thanks,

Jeff

-- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/index.php/User:Jhammond _______________________________________________ mpi-forum mailing list [email protected] http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi-forum

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-- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/index.php/User:Jhammond