[Boost-users] [program_options] checking the presence of required arguments

From: Torrey Pines (n.torrey.pines_at_[hidden])
Date: 2007-02-27 20:16:21

Hi

My program has a bunch of required arguments. I grouped them into one
options_description:

options_description required("Required options");
required.add_options() /* .... */ ;

// ...

options_description desc("Allowed options");
desc.add(required).add(other);

I'd like to check that all required arguments are in fact supplied
without having to do

if(vm.count("arg1") == 0) {
  cerr << "usage error: arg1 is required\n";
  return 1;
}

for each of them. Any suggestions?

Thanks