Function to_string

libraries/fc/src/string.cpp:131–137

  }

  fc::string to_string(double d)
  {
    // +2 is required to ensure that the double is rounded correctly when read back in.  http://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
    std::stringstream ss;
    ss << std::setprecision(std::numeric_limits<double>::digits10 + 2) << std::fixed << d;
    return ss.str();
  }

  fc::string to_string( uint64_t d)
  {