[Boost-users] Error while typecasting the boost::variant ( need help)

Dear Friend my program is typedef std::vector<int> vec_name; struct network { boost::variant<vec_name> net_id; }; typedef std::vector<network>network_list; // create the instance for vector network_list net_list; for(int i=0; i<net_list.size(); ++i) { unsigned char* query_str = net_list[0].net_id; } ERROR is error: cannot convert ‘boost::variant<odtone::mih::null, std::vector<std::basic_string<char> > >’ to ‘unsigned char*’ in assignment Best Regards BaBu -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.