Boost
C++ Libraries
...one of the most highly
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world.
— Herb Sutter and Andrei
Alexandrescu, C++
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boost::intrusive::hashtable_equal_holder
// In header: <boost/intrusive/hashtable.hpp> template<typename ValueTraits, typename BucketTraits, typename VoidOrKeyOfValue, typename VoidOrKeyEqual, bool LinearBuckets> struct hashtable_equal_holder { // types typedef unspecified type; };