// In header: <boost/date_time/date_formatting_locales.hpp>
template<typename date_type, typename facet_type, typename charT = char> 
class ostream_date_formatter {
public:
  // types
  typedef std::basic_ostream< charT > ostream_type;
  typedef date_type::ymd_type         ymd_type;    
  // public static functions
  static void date_put(const date_type &, ostream_type &, const facet_type &);
  static void date_put(const date_type &, ostream_type &);
};