c++实现写一个函数，求2个整数的和，要求在函数体内不得使用+,-* /

#include <iostream>
using namespace std;
int add(int x, int y)
{
	return x+y;
} 

int addmove(int a, int b)
{
	  if (b==0)
	  {
		return a;
	  }
	  else
	  {
		int sum = a ^b;	//处理移位 11 = 0， 10 = 1，00 = 0
		int jinwei = (a & b) <<1;	//11 = 0; 10 = 1,00 = 0
		return addmove(sum,jinwei);
	  }
}
void main()
{
	cout<<add(12,12)<<endl;
	cout <<addmove(12,12)<<endl;
	system("pause");
}