Errorcode enum name and strong type about tinyxml2 HOT 3 CLOSED

#include "tinyxml2.h"  // found on include path under Platform

// ===== Boilerplate for error_code enumeration =====

namespace boost {
namespace system {

// must be in same namespace as the master template definition
template<> struct is_error_code_enum< tinyxml2::XMLError >
{
  static const bool value = true;
};

}}


namespace tinyxml2 {

namespace internal {

class error_category : public boost::system::error_category
{
public:
  const char* name() const
  {
    return "tinyxml2 error";
  }

  std::string message(int value) const
  {
    // There is no function in tinyxml2 to give a string representation of the error code.
    // So if you need to know, match this decimal number against the enum position
    // in XMLError found in tinyxml2.h.
    boost::format fmt ("tinyXML2 error code %d");
    fmt % value;
    return fmt.str();
  }
};

}

inline
const boost::system::error_category& get_error_category()
 {
 static internal::error_category instance;
 return instance;
 }


// Must be in the same namespace as argument type
inline boost::system::error_code make_error_code(XMLError e)
{
  return boost::system::error_code(
      static_cast<int>(e), get_error_category());
}

}

// ===== end of error_code support =====