Function rocksdb::merge_operator::partial_merge_callback

pub unsafe extern "C" fn partial_merge_callback<F: MergeFn, PF: MergeFn>(
    raw_cb: *mut c_void,
    raw_key: *const c_char,
    key_len: size_t,
    operands_list: *const *const c_char,
    operands_list_len: *const size_t,
    num_operands: c_int,
    success: *mut u8,
    new_value_length: *mut size_t,
) -> *mut c_char