leetcode reverse integer

class  {
public:
    int reverse(int x) {
        int res = 0;
        while(x != 0) {
            int next = res * 10 + x % 10;
            x = x / 10;
            if(next / 10 != res) {
                res = 0;
                break;
            }
            res = next;
        }
        return res;
    }
};