Function mpi::ffi::PMPI_Pack_external

pub unsafe extern fn PMPI_Pack_external(datarep: *const c_char,
                                        inbuf: *const c_void,
                                        incount: c_int,
                                        datatype: MPI_Datatype,
                                        outbuf: *mut c_void,
                                        outsize: MPI_Aint,
                                        position: *mut MPI_Aint)
                                        -> c_int