2 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
7 <title>null_hash_fn Interface
22 <p>A "null" hash function, indicating that the combining hash function is actually a ranged-hash function.
25 <p><a href = "concepts.html#concepts_null_policies">Null Policy Classes</a> explains the concept ofa null policy.
30 <a href = "../../../../include/ext/pb_assoc/hash_policy.hpp"><tt>hash_policy.hpp</tt>