Circular Bit Shift

Write two functions RL(data,n) which performs circular left shift on variable data by n bits , RR(data,n) which performs circular right shift on variable data by n bits
note: data is 1 byte variable

refer to this video to know more about circular bit shifts

Solution

	#include <stdio.h>
	#include <stdlib.h>
	char RL(unsigned char byte,unsigned int n)
	{
	unsigned char temp=0;
	for(int x=0;x<n;x++)
	{
	temp=byte&(1<<7);//save last bit
	byte=byte<<1;//shift n left by 1 bit
	byte|=temp;//save last bit in first position from right
	}
	return byte;
	}
	char RR(unsigned char byte,unsigned int n)
	{
	unsigned char temp=0;
	for(int x=0;x<n;x++)
	{
	temp=byte&(1<<0);//save first bit
	byte=byte>>1;//shift n left by 1 bit
	byte|=(temp<<7);//save first bit in last position from right
	}
	return byte;
	}
	int main(int argc, char** argv) {
	printf("%d\n%d\n",RL(16,2),RR(16,2));
	return (EXIT_SUCCESS);
	}

view raw circularshift.c hosted with ❤ by GitHub