var *string = new String {
                          .length = length,
                          .init   = [=] (var WR *string) {
                                                           strcpy (string->pointer, path);
                                                           strcat (string->pointer, separator);
                                                           strcat (string->pointer, file_name);
                                                         }
                         };
 
 
 

free (&string);