l4/pkg/libstdc++-v3/contrib/libstdc++-v3-4.3.3/doc/html/ext/pb_ds/null_hash_fn.html

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  16     <h1><tt>null_hash_fn</tt> Interface</h1>
  17
  18     <p>A "null" hash function, indicating that the combining hash
  19     function is actually a ranged hash function.</p>
  20
  21     <p><a href=
  22     "concepts.html#concepts_null_policies">Interface::Concepts::Null
  23     Policy Classes</a> explains the concept of a null policy. See
  24     also <a href=
  25     "hash_based_containers.html#hash_policies">Design::Hash-Based
  26     Containers::Hash Policies</a>.</p>
  27
  28     <p>Defined in: <a href=
  29     "../../../../include/ext/pb_ds/hash_policy.hpp"><tt>hash_policy.hpp</tt></a></p>
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