Ticket #6785: read_json_gcc47_cpp11.cpp

#include <iostream>
#include <sstream>

#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/json_parser.hpp>

using namespace std;
using namespace boost::property_tree;

int main()
{
  std::istringstream istr("");
  ptree pt;

  read_json(istr, pt);

  return 0;
}