id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 11393,"boost::program_options accepting switch-options that match the beginning of defined option, but is not full option typed out.",eg@…,Vladimir Prus,"With: namespace po = boost::program_options; po::options_description desc (""options""); desc.add_options () ( ""help,h"", ""print this help message"") ( ""config,c"", po::value(), ""config file, default: $XDG_CONFIG_HOME/astroid/config"") ( ""new-config,n"", ""make new default config, then exit"") ( ""mailto,m"", po::value(), ""compose mail with mailto url or address"") ( ""no-auto-poll"", ""do not poll automatically""); po::variables_map vm; bool show_help = false; try { po::store ( po::parse_command_line (argc, argv, desc), vm ); } catch (po::unknown_option &ex) { cout << ""unknown option"" << endl; cout << ex.what() << endl; show_help = true; } running: ./program --asdf fails, but running: ./program --hel is parsed as --help.",Bugs,new,To Be Determined,program_options,Boost 1.58.0,Problem,,,