Function hash_bytes

nodedb-query/src/msgpack_scan/aggregate.rs:414–421

FNV-1a hash for raw bytes (used by approx aggregates to feed HLL/SpaceSaving).

(bytes: &[u8])

/// FNV-1a hash for raw bytes (used by approx aggregates to feed HLL/SpaceSaving).
fn hash_bytes(bytes: &[u8]) -> u64 {
    let mut h: u64 = 0xcbf29ce484222325;
    for &b in bytes {
        h ^= b as u64;
        h = h.wrapping_mul(0x100000001b3);
    }
    h
}

#[cfg(test)]
mod tests {