#include <bits/stdc++.h>
#include <boost/utility/string_view.hpp>
#include <boost/functional/hash.hpp>

using namespace std;

int main()
{
  std::string str = "jeffin";
  boost::string_view ref = str;
  if(boost::hash_value(ref) == boost::hash_value(str))
    std::cout<<"sucess"<<std::endl;
  boost::hash<std::string> hstr;
  boost::hash<boost::string_view> hsv;
  if(hsv(ref) == hstr(str))
   cout<<"does it really works";
  return 0;
}