Function mpi::ffi::MPI_Intercomm_create

pub unsafe extern fn MPI_Intercomm_create(local_comm: MPI_Comm,
                                          local_leader: c_int,
                                          bridge_comm: MPI_Comm,
                                          remote_leader: c_int,
                                          tag: c_int,
                                          newintercomm: *mut MPI_Comm)
                                          -> c_int