#include <boost/range.hpp>
#include <vector>

int main()
{
  typedef std::vector<int> vec_t;
  typedef boost::sub_range<vec_t> range_t;
  vec_t vec(10);
  range_t r(vec.begin(), vec.end());
  const range_t & r_ref = r;
  range_t v = r_ref;
}