// Wrapping this method:
  int global_do(int x, int y = 3, int z = 10) {
    return x * y * z;
  }
 
// Happens like this:
 
{
  typedef int ( *global_do_func_type )( int x, int y, int z );
  Rice::define_global_function("global_do", 
    global_do_func_type( &default_args::global_do ), 
    (Rice::Arg("x"), Rice::Arg("y") = 3, Rice::Arg("z") = 10)); // Comma operator woot!
}