equivalent 60 db_info dbi; // default ctor required if (main_site_is_available) { get_data(main_site, dbi); } // overwrite default value else { get_data(backup_site, dbi); } // overwrite default d is now okay } db_info dbi = uninitialized; if (main_site_is_available) { get_data(main_site, dbi); } // construct else { get_data(backup_site, dbi); }