MPI_Comm_c2f  -   Convert a communicator handle from its C
       representation to its Fortran representation


SYNOPSIS

       #include <mpi.h>
       MPI_Fint
       MPI_Comm_c2f(MPI_Comm comm)


INPUT PARAMETER

       comm   - C communicator handle


RETURN VALUE

       f_handle
              - Fortran communicator handle


NOTES FOR FORTRAN

       All MPI routines in  Fortran  (except  for  MPI_WTIME  and
       MPI_WTICK ) have an additional argument ierr at the end of
       the argument list.  ierr is an integer and  has  the  same
       meaning  as the return value of the routine in C.  In For­
       tran, MPI routines are subroutines, and are  invoked  with
       the call statement.

       All  MPI  objects  (e.g., MPI_Datatype , MPI_Comm ) are of
       type INTEGER in Fortran.


ERRORS

       This function does not return the normal MPI_SUCCESS inte­
       ger  value  upon success.  Instead, it returns a handle to
       the converted object.  If an error occurs, the appropriate
       NULL handle will be returned.


SEE ALSO

       MPI_Comm_c2f(3)


MORE INFORMATION

       For  more  information,  please see the official MPI Forum
       web site, which contains the text of both  the  MPI-1  and
       MPI-2  standards.  These documents contain detailed infor­
       mation about each MPI  function  (most  of  which  is  not
       duplicated in these man pages).

       http://www.mpi-forum.org/


LOCATION

       handles.c


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