Paul Rajlich - binary

Paul Rajlich
Research Programmer
Visualization and Virtual Environments
National Center for Supercomputing Applications

prajlich@ncsa.uiuc.edu
http://brighton.ncsa.uiuc.edu/~prajlich/

MAIN

WORK

Here's the binary string:

01010010011000010110101001101100011010010110001101101000

Now break it up into bytes (a byte is 8 bits):

01010010 01100001 01101010 01101100 01101001 01100011 01101000

Now convert each byte from binary to base 10:

82       97       106      108      105      99       104

Look up the corresponding character for each number in the ASCII table:

R         a        j       l        i        c        h

The string is the binary encoding of the character string "Rajlich". :-) In other words, this is how a computer stores the string "Rajlich."

Here's the program:

#include "stdio.h"
#include "string.h"

int main(int argc, char **argv) {
  int i, j, c;
  char *str = argc>1 ? argv[1] : strdup("Rajlich");
  printf("%s -> ", str);
  for (i=0; str[i]!='\0'; i++)
    for (c=str[i], j=0; j<8; j++, c<<=1)
      printf("%d", c&0x80 ? 1 : 0);	    	
  printf("\n");
}

(C)opyright 2003, Paul Rajlich Want to see what I am doing now? Visit www.visbox.com

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