text: 
  #include <iostream>
  #include <utility>
  #include <cassert>
  #include "make_pair.h"
  
  int
  main(int argc, char** argv)
  {
    std::pair<size_type, size_type> x(15, 4);
  
    size_type_pair y = make_pair(x.first, x.second);
  
    assert(x.first  == y.first);
    assert(x.second == y.second);
  
    std::cout << "\tsuccessful execution of " << argv[0] << std::endl;
    return EXIT_SUCCESS;
  }
  
  