Function rocksdb::merge_operator::full_merge_callback

pub unsafe extern "C" fn full_merge_callback(
    raw_cb: *mut c_void, 
    raw_key: *const c_char, 
    key_len: size_t, 
    existing_value: *const c_char, 
    existing_value_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
) -> *const c_char