#define BOOST_MULTI_INDEX_ENABLE_SAFE_MODE

#include <boost/multi_index_container.hpp>
#include <boost/multi_index/ordered_index.hpp>
#include <boost/multi_index/key_extractors.hpp>
#include <boost/shared_ptr.hpp>

struct query
{
    query(unsigned int id_,
          unsigned short pr_,
          unsigned short type_,
          unsigned short status_);
    virtual ~query();
    enum estatus{WAITING=0, WORKING=1, BUFFERED=2};

    unsigned int id;
    unsigned short pr;
    unsigned short type;
    unsigned short status;

    typedef boost::shared_ptr<query> pointer;
};

struct tid{};

using namespace boost::multi_index;

struct query_rank_key:composite_key<
  query::pointer,
  member<query,unsigned short,&query::status>,
  member<query,unsigned short,&query::pr>,
  member<query,unsigned int,&query::id>

>{};

typedef multi_index_container<
  query::pointer,
  indexed_by<
    ordered_non_unique<
        query_rank_key
    #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
      ,composite_key_result_less<query_rank_key::result_type>
    #endif

    >,

    ordered_unique<
        tag<tid>,member<query,unsigned int,&query::id> >
  >
> queue_set;

class queue : public queue_set
{
public:
    queue(){};
    virtual ~queue(){};
    typedef boost::shared_ptr<queue> pointer;
};

int main()
{
  queue q;
}