Function OMPI_C_MPI_DUP_FN 

pub unsafe extern "C" fn OMPI_C_MPI_DUP_FN(
    comm: MPI_Comm,
    comm_keyval: c_int,
    extra_state: *mut c_void,
    attribute_val_in: *mut c_void,
    attribute_val_out: *mut c_void,
    flag: *mut c_int,
) -> c_int