[boost] [bcp] trapping invalid boost path

From: Andy Little (andy_at_[hidden])
Date: 2005-04-16 08:13:34

Hi,
    having tried out bcp in WinXp  I was fooled for some time by not entering 
the correct boost path at the command line, when the app silently fails. 
Therefore I wonder if testing for invalid boot path would improve things. 
Something like the following patch in  cpp_main in file main.cpp seems to work:

cpp_main(int argc, char* argv[])
....

   else if(0 == std::strncmp("--boost=", argv[i], 8))
      {
        const char* boost_path = argv[i] + 8;
        if(boost::filesystem::exists(boost_path)){
          papp->set_boost_path(boost_path);
        }
        else{
            std::string msg("ERROR boost path : ");
            msg += boost_path
            msg += " is invalid\n";
            throw std::runtime_error(msg);
            return 0;
        }
      }

...

}

regards
Andy Little