#ifndef __STL_PAIR
#define __STL_PAIR
#include <utility>
namespace std
{
/*
template<class T1, class T2>
struct pair {
  typedef T1 first_type;
  typedef T2 second_type;
  T1 first;
  T2 second;
  pair(){}
  pair(const T1& f, const T2& s):first(f), second(s){}
  ~pair();
};
*/
}

#endif
