Method lookup

atomic-core/src/change/format_v3/hash_table.rs:302–304

Look up the index for a given hash. Returns `None` if the hash is not in the table. This is an O(1) operation using the internal `HashMap`. # Arguments `hash` - The 32-byte hash to look up. # Examples ```rust use atomic_core::change::format_v3::HashDedupTable; let self_hash = [0u8; 32]; let table = HashDedupTable::new(self_hash); assert_eq!(table.lookup(&self_hash), Some(0)); assert_eq!(tab

(&self, hash: &[u8; 32])

    /// assert_eq!(table.lookup(&[99u8; 32]), None);
    /// ```
    pub fn lookup(&self, hash: &[u8; 32]) -> Option<HashIndex> {
        self.index_map.get(hash).copied()
    }

    /// Look up the index for a hash, returning an error if not found.
    ///