Function mpi::ffi::MPI_Ineighbor_alltoall

pub unsafe extern fn MPI_Ineighbor_alltoall(sendbuf: *const c_void,
                                            sendcount: c_int,
                                            sendtype: MPI_Datatype,
                                            recvbuf: *mut c_void,
                                            recvcount: c_int,
                                            recvtype: MPI_Datatype,
                                            comm: MPI_Comm,
                                            request: *mut MPI_Request)
                                            -> c_int