Function mpi::ffi::MPI_Reduce_scatter

pub unsafe extern fn MPI_Reduce_scatter(sendbuf: *const c_void,
                                        recvbuf: *mut c_void,
                                        recvcounts: *const c_int,
                                        datatype: MPI_Datatype,
                                        op: MPI_Op,
                                        comm: MPI_Comm)
                                        -> c_int