Ticket #11574: wrong_option_name_in_error_message.cpp

#include <boost/program_options.hpp>

#include <iostream>
#include <stdexcept>
#include <string>

int main(int argc, char* argv[])
{
   try
   {
      boost::program_options::options_description desc("Allowed options");
      desc.add_options()
         ("help,h", "produce help message")
         ("enable-debug", "enables debug output.")
         ;

      boost::program_options::variables_map vm;
      boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), vm);
      boost::program_options::notify(vm);

      if (vm.count("help") || (argc == 1))
      {
         std::cout << "To reproduce the bug call " << argv[0] <<  " --enable-debug --enable-debug" << std::endl
                   << std::endl
                   << "  On Windows the option name '--enable-debug' is contained as expected in the error message:" << std::endl
                   << "    option '--enable-debug' cannot be specified more than once" << std::endl
                   << std::endl
                   << "  On Linux only the last part of the option name '--enable-debug' (=> '--debug') is contained in the error message:" << std::endl
                   << "    option '--debug' cannot be specified more than once" << std::endl
                   << std::endl
                   << "Options:" << std::endl;

         std::cout << desc << std::endl;
         if (argc > 1)
         {
            return 0;
         }
         else
         {
            return 1;
         }
      }

      if (vm.count("enable-debug"))
      {
         std::cout << "Activating debug output." << std::endl;
      }

      std::cout << "Program continues" << std::endl;
   }
   catch (const std::exception& e)
   {
      std::cout << e.what() << std::endl;
   }

   return 0;
}