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Program Discussion :: Basics
Home > Programs > Basics

107. lets 32bit no. write a program to circular rotate 1 byte.
    int y=0x01020304;
    output y=0x04010203;

Answer:

#include<stdio.h>

#include<iostream>
using namespace std;
#define INT_BITS 32
int leftRotate(int n, unsigned int d)
{
return (n << d)|(n >> (INT_BITS - d));
}
int rightRotate(int n, unsigned int d)
{
return (n >> d)|(n << (INT_BITS - d));
}
/* Driver program to test above functions */
int main()
{
int n = 16;
int d = 2;
cout<<"Left Rotation of" <<n<< "by "<<d<<" is ";
cout<<leftRotate(n, d);
printf("\nRight Rotation of"<<n<< "by "<<d<<" is ";
cout<< rightRotate(n, d);
getchar();

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