// File: namespace1.cpp
//
// Simple use of namespaces 

#include <iostream>

namespace MySpace {
   int i = 7, j = 8 ;
}

namespace DS9 {
   int i = 17, j = 18 ;
}


main() {
   using std::cout ;
   using std::endl ;

   cout << "MySpace::i = " << MySpace::i << endl ;
   cout << "DS9::i = " << DS9::i << endl ;
   cout << endl ;

   { // new block scope

      using MySpace::i ;
      
      cout << "using MySpace::i" << endl  ;
      cout << "Which i? i = " << i << endl ; 
      cout << endl ;
   }

   { // another block scope

      using DS9::i ;

      cout << "using DS9::i" << endl  ;
      cout << "Which i? i = " << i << endl ; 
      cout << endl ;
   }
}