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