Function mpi::ffi::PMPI_Ireduce_scatter

pub unsafe extern "C" fn PMPI_Ireduce_scatter(
    sendbuf: *const c_void,
    recvbuf: *mut c_void,
    recvcounts: *const i32,
    datatype: *mut ompi_datatype_t,
    op: *mut ompi_op_t,
    comm: *mut ompi_communicator_t,
    request: *mut *mut ompi_request_t
) -> i32