Question: How do you promise the fingerprint isn't `0`?

[ashtul]

In the code I see only this function - `

pub fn fingerprint(&self, hash: u64) -> u64 {
    hash >> (64 - self.fingerprint_bitwidth)
}

Than there an assert for 0 value. debug_assert_ne!(fingerprint, 0);

But it does not promise a non 0 reply. Am I missing something?

[sile]

The calling side guarantees that the conditions are met as follows:

• https://github.com/sile/scalable_cuckoo_filter/blob/5f798913226d81d488c91e6af5a505fa22319707/src/cuckoo_filter.rs#L127
• https://github.com/sile/scalable_cuckoo_filter/blob/5f798913226d81d488c91e6af5a505fa22319707/src/cuckoo_filter.rs#L150

If you have a specific scenario in which the assertion could be broken, it may indicate a bug, so please inform me.

[ashtul]

Got it. Thank you!