How to Convert these ASCII values into Binary in C [duplicate]

Question

I'm trying to convert the ASCII values of each letter, into Binary but I'm not sure how to grab the decimal values and convert them. Here's the code that prints out a word with their ASCII values to the right

#include <stdio.h>
#include <string.h>


int main (void) {

   char c[20];
   printf("Enter a word: ");
   scanf("%s",&c);

   int i;
   char *str = c;
   int length = strlen(str);

   for (i = 0; i < length; i++) {
      printf("%c = %d \n", str[i] , str[i]);
   }
   return 0;
}

Example output:

Enter a word: Program
P = 80
r = 114
o = 111
g = 103
r = 114
a = 97
m = 109

You should be aware that they are already binary. They have to be because your processor can only handle binary instruction code and data. I'm guessing that you mean a textual representation of the binary, eg '10100110' ? — Martin James
– Martin James, Commented Sep 29, 2014 at 4:24
Yes, I want to change the ASCII values into a visual of Binary, such as 1's and 0's. — Coleton
– Coleton, Commented Sep 29, 2014 at 4:25

Anbu.Sankar · Accepted Answer · 2014-09-29 04:35:41Z

3

Try this one...Pgm for Binary printing..

#include <stdio.h> 
#include <string.h>


int main (void) {

char c[20];
printf("Enter a word: ");
scanf("%s",c);//here no need &
    int j;
int i;
char *str = c;
int length = strlen(str);

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


   for(j=7;j>=0;j--)//for binary print; for char j=7, for int j=31
    {
    if((str[i]>>j&1)==1)
    printf("1");
    else
    printf("0");
    }


  printf("\n%c = %d \n", str[i] , str[i]);
}
return 0;
}

edited Sep 29, 2014 at 4:35

answered Sep 29, 2014 at 4:30

Anbu.Sankar

1,3468 silver badges17 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

WhozCraig Over a year ago

Note: that hand-rolled 7 should be based on CHAR_BIT. example

Collectives™ on Stack Overflow

How to Convert these ASCII values into Binary in C [duplicate]

1 Answer 1

1 Comment

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Linked

Related