不创建第三方变量对整型数组逆置

void SwapNum(int& a, int& b)
{
a = a^b;
b = a^b;
a = a^b;
}

void SwapArray(int *str,int size)
{
int i = 0;
for (i = 0; i < size / 2; i++)
{
SwapNum(str[i], str[size - i - 1]);
}
}
void test()
{
int arr[5] = { 1, 2, 3, 4, 5 };
int size = sizeof(arr) / sizeof(arr[0]);
SwapArray(arr,size);
int i = 0;
while (i<size)
{
printf("%d ", arr[i++]);
}
}