[Boost-users] [boost::program_options] Modification of values after the parsing process

Hello! I would like to transform (add) some options after the parsing process has finished. Unfortunately variables_map has no non const members which could acomplish this task. Doing const_cast or using std::map interface, which is not explicitly described as parent class of variables_map is not my first choice. Is there any other way of adding some options programmatically? Many thanks, Ovanes Markarian