Image Rotation

/*
* <summary> Flips the image by performing 2 rotations clockwise by 90 degrees </summmary>
* <params>
*       "img" = 2 dimensional array containing the image bits
*       "size" = Max size of img's row and column dimensions
* </params>
* <precond> "size" > 0 </precond>
*/
void flip(int img[][MAX_SIZE], int size)
{
        /* Flip is equivalent to 2 rotations */
        rotate(img,size);
        rotate(img,size);
}

/*
* <summary> Rotates the image clockwise by 90 degrees </summmary>
* <params>
*       "img" = 2 dimensional array containing the image bits
*       "size" = Max size of img's row and column dimensions
* </params>
* <precond> "size" > 0 </precond>
*/
void rotate(int img[][MAX_SIZE], int size)
{
        int temp[MAX_SIZE][MAX_SIZE];
        int row, col, newRow,newCol;

        /*
        *       Copy each element from img row-wise (from row 0)
        *       to temp array column-wise(from col size-1)
        */
        for(row = 0, newCol = size - 1; row < size; row++, newCol--)
                for(col = 0, newRow = 0; col < size; col++, newRow++)
                        temp[newRow][newCol] = img[row][col];

        /* Copy whole of temp to img array */
        for(row = 0; row< size; row++)
                for(col = 0; col < size; col++)
                        img[row][col] = temp[row][col];
}