Calculates the hash value from key. Uses the identity since key is
expected to be a suitable hash value.
This method has to accept const(hash_t) because it overrides templated
base toHash (K) (in K key) method and DMD demands exact qualifier
match for arguments.
Calculates the hash value from key. Uses the identity since key is expected to be a suitable hash value.
This method has to accept const(hash_t) because it overrides templated base toHash (K) (in K key) method and DMD demands exact qualifier match for arguments.