Function mpi::ffi::PMPI_Reduce_scatter

pub unsafe extern fn PMPI_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