//----------------------------------------------------------------------------
#ifndef GMCG_ENUM_HELPER_HPP_20020108
#define GMCG_ENUM_HELPER_HPP_20020108
//----------------------------------------------------------------------------
#include <boost/preprocessor/tuple/to_list.hpp>
#include <boost/preprocessor/list/enum.hpp>
#include <boost/preprocessor/list/for_each.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <ostream>
//----------------------------------------------------------------------------

#define MAKE_ENUM(TYPE_NAME,LIST)   \
enum TYPE_NAME { BOOST_PP_LIST_ENUM(LIST) };  \
std::ostream& operator<<(std::ostream& os, TYPE_NAME e)    \
{               \
  switch(e)     \
  {             \
    BOOST_PP_LIST_FOR_EACH(MAKE_ENUM_AUX, _, LIST)  \
    default:      \
      return os << "unknown";   \
  }  \
}

#define MAKE_ENUM_AUX(R,_,ELEM)  \
  case ELEM: return os << BOOST_PP_STRINGIZE(ELEM);

//----------------------------------------------------------------------------
/* example use:

#include <iostream>
#include "enum_helper.hpp"

MAKE_ENUM
  (event_type, BOOST_PP_TUPLE_TO_LIST
                 (4, (read_event, write_event, timeout_event, error_event)))


int main()
{
  std::cout << read_event << std::endl;
  std::cout << write_event << std::endl;
  std::cout << timeout_event << std::endl;
  std::cout << error_event << std::endl;
}

*/
//----------------------------------------------------------------------------
#endif // GMCG_ENUM_HELPER_HPP_20020108
//----------------------------------------------------------------------------