The following example shows a Hello World application. It accepts one parameter, a string, to whom say hello. This parameter is -n for the short option, and --name for the long one. If no option is provided, then the World is greeted.

```

include

include "getopt_pp.h"

using namespace GetOpt; using namespace std;

int main(int argc, char* argv[]) { string who;

GetOpt_pp ops(argc, argv);

ops >> Option('n', "name", who, "world" );      /* the default name is 'world' */

cout << "Hello " << who << "!" << endl;

return 0;

} ```