Write a program for error detection and correction for 7/8 bits ASCII codes using Hamming Codes or CR

CNS Assignment 3

Write a program for error detection and correction for 7/8 bits ASCII codes using Hamming Codes or CRC

Download Complete Writeup

Code :

#include <stdio.h>

#include <conio.h>

#include <string.h>

int main() {

int i,j,keylen,msglen;

char input[100], key[30],temp[30],quot[100],rem[30],key1[30];

// study.narendradwvedi.org

printf("Enter Data: ");

gets(input);

printf("Enter Key: ");

gets(key);

keylen=strlen(key);

msglen=strlen(input);

strcpy(key1,key);

for (i=0;i<keylen-1;i++) {

input[msglen+i]='0';

}

for (i=0;i<keylen;i++)

temp[i]=input[i];

for (i=0;i<msglen;i++) {

quot[i]=temp[0];

if(quot[i]=='0')

for (j=0;j<keylen;j++)

key[j]='0'; else

for (j=0;j<keylen;j++)

key[j]=key1[j];

for (j=keylen-1;j>0;j--) {

if(temp[j]==key[j])

rem[j-1]='0'; else

rem[j-1]='1';

}

rem[keylen-1]=input[i+keylen];

strcpy(temp,rem);

}

strcpy(rem,temp);

printf("\nQuotient is ");

for (i=0;i<msglen;i++)

printf("%c",quot[i]);

printf("\nRemainder is ");

for (i=0;i<keylen-1;i++)

printf("%c",rem[i]);

printf("\nFinal data is: ");

for (i=0;i<msglen;i++)

printf("%c",input[i]);

for (i=0;i<keylen-1;i++)

printf("%c",rem[i]);

if (rem ==0)

printf("Error in the code");

else

printf("\nNo Error detected%d",rem);

getch();

}

Output :

Your review for this post?