text: #ifndef	_MH_UTILITY_HPP_
  #define	_MH_UTILITY_HPP_
  
  namespace Mh
  {
  	template<typename T1, typename T2>
  	struct pair
  	{
  		typename	T1	first_type;
  		typename	T2	second_type;
  
  		T1	first;
  		T2	second;
  
  		pair() : first(T1()), second(T2()) {}
  		pair(const T1& x, const T2& y) : first(x), second(y) {}
  		template<typename U, typename V> pair(const pair<U, V> &p) : first(p.first), second(p.second) {}
  	};
  
  	template<typename T1, typename T2>
  	pair<T1, T2> make_pair(T1 x, T2 y)
  	{
  		return pair<T1, T2>(x, y);
  	}
  }
  
  #endif	/* _MH_UTILITY_HPP_ */