On Thu, Dec 10, 2009 at 8:01 PM, Greg Ewing <[email protected]> wrote: > Lisandro Dalcin wrote: >> I need to return a MPI_Comm value, and MPI_Comm can be >> anything (well, it usually is an integer or a pointer, depending on >> the implementation). > > If it's actually a struct, then you're in trouble, because > an exception value has to be something comparable with > == in C, and you can't do that with structs. >
OK. "Anything" was too much. It is an integer typedef or a pointer to an opaque struct, depending on the MPI implementation. But I make Cython to see MPI_Comm as a pointer type. > > If it's a scalar type, you can probably tell Pyrex that > it's an int and use an enum for the exception value. > Well, at least in Cython, an enum is not compatible with all scalar types, just with integral types. As I have to return a pointer type, I loose. -- Lisandro Dalcín --------------- Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) PTLC - Güemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594 _______________________________________________ Cython-dev mailing list [email protected] http://codespeak.net/mailman/listinfo/cython-dev
