[boost] [Boost-bugs] [ boost-Bugs-1395874 ] Proogram_options: Fails to parse options with a common root

From: SourceForge.net (noreply_at_[hidden])
Date: 2006-01-03 04:56:57

Bugs item #1395874, was opened at 2006-01-03 09:56
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Roger Leigh (rleigh)
Assigned to: Nobody/Anonymous (nobody)
Summary: Proogram_options: Fails to parse options with a common root

Initial Comment:
Given the following testcase:

#include <iostream>
#include <boost/program_options.hpp>
namespace opt = boost::program_options;

int main(int   argc,
         char *argv[])
{
  try
    {
      bool all, all_chroots, all_sessions;

      opt::options_description chroot("Chroot selection");
      chroot.add_options()
        ("all,a", "Select all chroots and active sessions")
        ("all-chroots", "Select all chroots")
        ("all-sessions", "Select all active sessions");

      opt::variables_map vm;
      opt::store(opt::parse_command_line(argc, argv,
chroot), vm);
      opt::notify(vm);

      if (vm.count("all"))
        all = true;
      if (vm.count("all-chroots"))
        all_chroots = true;
      if (vm.count("all-sessions"))
        all_sessions = true;

      return 0;
    }
  catch (std::exception const& e)
    {
      std::cerr << e.what() << std::endl;
      return 1;
    }
}

$ g++ -o opt opt.cc -lboost_program_options
$ ./opt --help
unknown option help
$ ./opt --all-chroots
$ ./opt --all-sessions
$ ./opt --all
ambiguous option all

--all is not abiguous, since it's an exact match.  It's
not ambigous for GNU getopt or GLib GOption, so this is
IMHO a bug.

Regards,
Roger

ii  libboost-dev                  1.33.0-6   Boost C++
Libraries development fi
ii  libboost-program-options1.33. 1.33.0-6   program
options library for C++

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