Reverse Integer ---- LeetCode 007

Reverse digits of an integer.

Example1: x = 123, return 321
Example2: x = -123, return -321

Solution 1:

class Solution {
public:
    int reverse(int x)
    {
        int result = ;
        while(x != )
        {
            if( x >  && result > (INT_MAX - x % ) /  ||
                x <  && result < (INT_MIN - x % ) /  )
                return ;
            result = result *  + x % ;
            x = x / ;
        }
        return result;
    }
};