#include <stdio.h>  /* putc() */
#include <limits.h> /* CHAR_BIT */
#define EXIT_PASS (0)

#define TSYM 'X'
#define FSYM '-'

#define PutC(c) (putc((char)(c),stdout))

#define DEFAULT_BASE (10) /* Must be 2 through 36 */
#define PutD(d)  (PutC( (char) ((d)<10)?('0'+(d)):('A'+(d)-10) ))

#define Put_u(n) (Put_ubase((n), DEFAULT_BASE))
#define PutH_u(n)(Put_ubase((n), 16))

void Put_ubase(unsigned int n, int base)
{
	 /* NOTE: 2 <= base <= 36 */

	 unsigned int m;
	 int i;

	 /* Determine how many digits there are */
	 for (m = 1; n/m >= base; m*=base )
		  /* EMPTY LOOP */;

	 /* Print out the digits one-by-one */
	 do
	 {
		  for(i = 0; n >= m; i++ )
				n = n - m;
		  PutD(i);
		  m = m / base;
	 } while ( m >= 1 );

}

int Putf_u(int d, int w, int how)
{
	 int digits;
	 int wt;
	 int chars;

	 /* determine how many digits are required */
	 for(digits = 0, wt = 1; d/wt >= 10; digits++)
		  wt *= 10;

	 /* how many characters actually printed */
	 chars = 0;

	 /* if how  = 0, left  justify the result */
	 /* if how  = 1, right justify and pad with spaces */
	 /* if how  = 3, right justify and pad with leading zeros   */

	 if (how)
	 {
		  while ( (w-chars) > digits )
		  {
				PutC( (3==how)? '0': ' ');
				chars++;
		  }
	 }

	 /* Output basic integer */
	 Put_u(d);
	 chars += digits;

	 /* Pad any remaining space in output field */
	 while ( w-chars )
	 {
		  PutC(' ');
		  chars++;
	 }

	 return chars;
}

int PutByte(void *address)
{
	 unsigned char  mask;
	 unsigned char *ptr;
	 int chars;

	 ptr = (unsigned char *) address;

	 for (chars = 0, mask = 1 << (CHAR_BIT - 1); mask; mask >>= 1)
	 {
		  PutC((*ptr & mask)? '1':'0');
		  chars++;
	 }
	 return chars;
}

int PutBytes(void *addr, int bytes)
{
	 unsigned char *ptr;
	 int i, count;

	 for (i=count=0, ptr = (unsigned char *) addr; i < bytes; i++, ptr++)
		  count += PutByte(ptr);

	 return count;
}

int main(void)
{
	 unsigned int i;

	 for(i = 0; i < 10; i++)
	 {
		  Putf_u(i, 3, 3); PutC(':');
		  PutBytes(&i, sizeof i);
		  PutC('\n');
	 }
	 return EXIT_PASS;
}