C++ Program to Rotate bits of a number

// C++ code to rotate bits
// of number
#include <bits/stdc++.h>
using namespace std;
#define INT_BITS 32

class gfg {

    /*Function to left rotate n by d bits*/
public:
    int leftRotate(int n, unsigned int d)
    {

        /* In n<<d, last d bits are 0. To
         put first 3 bits of n at
        last, do bitwise or of n<<d
        with n >>(INT_BITS - d) */
        return (n << d) | (n >> (INT_BITS - d));
    }

    /*Function to right rotate n by d bits*/
    int rightRotate(int n, unsigned int d)
    {
        /* In n>>d, first d bits are 0.
        To put last 3 bits of at
        first, do bitwise or of n>>d
        with n <<(INT_BITS - d) */
        return (n >> d) | (n << (INT_BITS - d));
    }
};

/* Driver code*/
int main()
{
    gfg g;
    int n = 16;
    int d = 2;
    cout << "Left Rotation of " << n << " by " << d
         << " is ";
    cout << g.leftRotate(n, d);
    cout << "\nRight Rotation of " << n << " by " << d
         << " is ";
    cout << g.rightRotate(n, d);

}

// This code is contributed by SoM15242