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Struct template unordered_default_bucket_traits



// In header: <boost/intrusive/hashtable.hpp>

template<typename ValueTraitsOrHookOption> 
struct unordered_default_bucket_traits {
  // types
  typedef ValueTraitsOrHookOption::template pack< none >::value_traits supposed_value_traits; 
  typedef unspecified                                                  slist;                 
  typedef unspecified                                                  implementation_defined;
  typedef implementation_defined                                       type;                  


This metafunction will obtain the type of the default bucket traits (when the user does not specify the bucket_traits<> option) from the value_traits or hook option to be used with a hash container.