Re: [Boost-users] [program options] count problem

Subject: Re: [Boost-users] [program options] count problem
From: Olivier Tournaire (olitour_at_[hidden])
Date: 2013-02-02 09:57:19

Thanks Diederick. Did not do the trick.
How I can I access the variables stored in vm ?

Regards,

Olivier

2013/2/2 Diederick C. Niehorster <dcnieho_at_[hidden]>

> This call I use works for me:
> po::command_line_parser(argc, ppargv).options(desc).run()
>
> Don't know if there is an important difference here, or if what you
> call is just a wrapper around it, but see if that works for you.
>
> Best,
> Dee
>
> On Sat, Feb 2, 2013 at 9:14 PM, Olivier Tournaire <olitour_at_[hidden]>
> wrote:
> > Oups. Made à mistake ... However the issue is still there:
> >
> >     if (vm.count("hierarchy"))
> >     {
> >         path input_path(hierarchy);
> >         // DO STUFF
> >     }
> >     else if (vm.count("file"))
> >
> >     {
> >         for(unsigned int i=0;i<files.size();++i)
> >         {
> >             path input_path(files[i]);
> >             // DO STUFF
> >         }
> >     }
> >     else if (vm.count("directory"))
> >
> >     {
> >         for(unsigned int i=0;i<directories.size();++i)
> >         {
> >             path input_path(directories[i]);
> >             // DO STUFF
> >         }
> >     }
> >     else
> >     {
> >         cout << "You must choose an option between --hierarchy --file
> > --directory!" << endl;
> >
> >         cout << desc << endl;
> >         return 1;
> >     }
> >
> >
> >
> > Le samedi 2 février 2013, Olivier Tournaire a écrit :
> >
> >> Hi all,
> >>
> >> I am having troubles with program options. I try to test if at least
> some
> >> of the available options are passed on the command line, but fail for
> some
> >> reason using count("option_name"). Here is my code:
> >>
> >> int main(int argc, char** argv)
> >> {
> >>     string hierarchy;
> >>     vector<string> files, directories;
> >>     double vertical_shift;
> >>     bool show_progress, single_file, single_dir;
> >>     int target_EPSG, nb_threads;
> >>
> >>     po::options_description desc("Allowed options");
> >>     desc.add_options()
> >>         ("help           ,h"
> >> , "Produce help message")
> >>         ("hierarchy        ", po::value<string>(&hierarchy)
> >> , "process a hierarchy)
> >>         ("file             ", po::value<vector<string> >(&files)
> >> , "process the specified files")
> >>         ("directory        ", po::value<vector<string> >(&directories)
> >> , "process the specified directories");
> >>
> >>     po::variables_map vm;
> >>     try
> >>     {
> >>         po::store(po::parse_command_line(argc, argv, desc), vm);
> >>
> >>         if (vm.count("help"))
> >>         {
> >>             cout << desc << "\n";
> >>             return 1;
> >>         }
> >>
> >>         po::notify(vm);
> >>     }
> >>     catch (const po::error &e)
> >>     {
> >>         cerr << "Exception caught ! --> " << e.what() << endl;
> >>         cout << desc << endl;
> >>         return 1;
> >>     }
> >>
> >>     if (vm.count("hierarchy"))
> >>     {
> >>         path input_path(hierarchy);
> >>         // DO STUFF
> >>     }
> >>     else if (vm.count("files"))
> >>     {
> >>         for(unsigned int i=0;i<files.size();++i)
> >>         {
> >>             path input_path(files[i]);
> >>             // DO STUFF
> >>         }
> >>     }
> >>     else if (vm.count("directories"))
> >>     {
> >>         for(unsigned int i=0;i<directories.size();++i)
> >>         {
> >>             path input_path(directories[i]);
> >>             // DO STUFF
> >>         }
> >>     }
> >>     else
> >>     {
> >>         cout << "You must choose an option between --hierarchy --files
> >> --directories!" << endl;
> >>         cout << desc << endl;
> >>         return 1;
> >>     }
> >>
> >>
> >> I always fall in the "else". What am I doing wrong?
> >>
> >> For instance with this command line : ./acute_coordinates_transform
> >> --hierarchy ~/work/data/
> >>
> >> À other question: is there à way to specify that 1 of the 3 options is
> >> required (and only 1)?
> >>
> >> Hope you cloud help.
> >>
> >> Regards,
> >>
> >> Olivier
> >
> >
> > _______________________________________________
> > Boost-users mailing list
> > Boost-users_at_[hidden]
> > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users