/*		  ASCTAB.CPP	*/

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

char* binary(int);

main()
{    int c, C;
     char left[9], right[9];
     printf("\tASCII TABLE: Character, Decimal, Binary, Octal, Hex\n\n");
     printf("Char  Dec Binary    Oct  Hex\tChar  Dec Binary    Oct  Hex\n");
     for(c = 32; c <= 79; c++)
     {    C = c + 48;
          strcpy(left, binary(c));
          strcpy(right, binary(C));
          printf("  %c   %3d %s  %3o  %3X\t  %c   %3d %s  %3o  %3X\n",
               c, c, left, c, c, C, C, right, C, C);
	  }
	  return 0;
}

/*   BINARY.CPP
	  CONVERTS INTEGER ARGUMENT N TO A STRING OF 0s AND 1s
*/


char* binary(int n)
{
	  static char bin[9];		 // holds 0s or 1s
	  for(int i=0; i<8; i++)
			 bin[i] = '0';  	   // all 0s to begin with

//	FILL IN BINARY STRING FROM THE LEAST SIGNIFICANT BIT (=LSB)
	  i = 7;
	  while(n)						// when n becomes 0, stop
	  {    if( n % 2 )    		// if remainder = 1 (not 0 [false])
					bin[i] = '1';  // 1 goes into string--stays 0 otherwise
			 n >>= 1;        		// next n
			 i--;						// go left in the string
	  }

     return bin;
}