// In header: <boost/log/sources/severity_logger.hpp>
template<typename LevelT = int> 
class wseverity_logger : public basic_composite_logger< wchar_t, wseverity_logger< LevelT >, single_thread_model, features< severity< LevelT > > >
{
public:
  // construct/copy/destruct
  wseverity_logger();
  wseverity_logger(wseverity_logger const &);
  template<typename... ArgsT> explicit wseverity_logger(ArgsT...const &);
  explicit wseverity_logger(LevelT);
  wseverity_logger & operator=(wseverity_logger const &);
};