Boost.Date_Time Enhancement - Load of Time Zone Database via istream

[soenke@…]

Hello, in Boost.Date_Time there is a function to load the Time Zone Database from a file. The function 'load_from_file' takes a string as parameter which contains a local filename to load the database from.

It is sometimes desirable to load the database from another source than a local file.

To support this i suppose to add a function 'load' and alter the existing 'load_from_file' in the following sense

      void load( std::istream& ifs )
      {
        string_type in_str;
        std::string  buff;

        if(!ifs){
          throw data_not_accessible();
        }
        std::getline(ifs, buff); // first line is column headings

        while( std::getline(ifs, buff)) {
          parse_string(buff);
        }
      }

      void load_from_file(const std::string& pathspec)
      {
        std::ifstream ifs(pathspec.c_str());
        if(!ifs){
          throw data_not_accessible(pathspec);
        }
        load( ifs );
      }

Best regards Sönke Schau

[Marshall Clow]

(In [71720]) added 'load_from_stream'; refs #2475

[Marshall Clow]

(In [72329]) Merge fixes to release; Fixes #2475