Not necessarily the best example in the world but the following works for me: using namespace boost::program_options; namespace po = boost::program_options; const int style(command_line_style::default_style + command_line_style::allow_long_disguise + command_line_style::allow_dash_for_short); po::variables_map vm; vector<string> unreg; //----------------------------------------------------------------------------- // Set up options //----------------------------------------------------------------------------- po::options_description desc("Allowed options"); desc.add_options() ("help,h", "produce help message") ("input-file,i", po::value<vector<string> >(), "input file") ("debug,d", po::value<string>(), "debug") ("noupdates,x", po::value<string>(), "no updates") ; //----------------------------------------------------------------------------- // Parse the command line //----------------------------------------------------------------------------- parsed_options parsed = command_line_parser(argc,argv).style(style).options(desc).allow_unregistered().run(); unreg = collect_unrecognized(parsed.options,include_positional); po::store(parsed, vm); po::notify(vm); Much of the style stuff is documented only if you wade through code. unreg will contain the unrecognized items. Larry From: Michael Powell Sent: Friday, April 12, 2013 4:03 PM To: boost-users@lists.boost.org Subject: [Boost-users] program_options allow_unregistered and *nix style Hello, I would like to find a way to allow_unregistered program_options, as well as specify cls::unix_style ^ cls::allow_short, where cls is po::command_line_style. The code I've got here doesn't seem to like unrecognized ones: //vis_ are my visible options, vars_ is my variable map. po::store(parse_command_line(argc, argv, vis_, cls::unix_style ^ cls::allow_short), vars_); po::notify(vars_); And then a slight variation with apparently a way to do this (untested), how to specify that cls? //http://stackoverflow.com/questions/10178525/how-to-handle-unsolicited-parame... po::parsed_options parsed_ = po::command_line_parser(argc, argv) .options(vis_).allow_unregistered().run(); Possible? Thank ye... Regards, Michael Powell -------------------------------------------------------------------------------- _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users