nothing to say, t…

// shit ,sina blog always trims my code ...

1.

void MY_SWAP(int & a, int &b)

{

   a = a^b;

   b = b^a;

   a = a^b;

}

2.

#define MY_SWAP(a,b,T)  do{ T temp =a; a =b;b = Temp; }while(0)

3.

template <class T>

void MY_SWAP(T&a,T&b)

{

   T temp;

   temp = a;

   a = b;

   b = temp;

}

4. 

void MY_STUPID_SWAP(T&a,T&b)

{

   MY_STACK stack;

   stack.push(a);

   stack.push(b);

   a = stack.pop();

   b = stack.pop();

}

5.template<class T>

void MY_SWAP(T* p_a,T* p_b)

{

  T temp;

  temp = *p_a;

  *p_a = *p_b;

  p_b = temp;

}