// In header: <boost/log/sinks/text_multifile_backend.hpp>

class text_multifile_backend : public basic_formatted_sink_backend< char > {
public:
  // types
  typedef base_type::char_type   char_type;                // Character type. 
  typedef base_type::string_type string_type;              // String type to be used as a message text holder. 
  typedef unspecified            file_name_composer_type;  // File name composer functor type. 
  // construct/copy/destruct
  text_multifile_backend();
  ~text_multifile_backend();
  // public member functions
  template<typename ComposerT> void set_file_name_composer(ComposerT const &);
  void consume(record_view const &, string_type const &);
};