#include <stdio.h>
#include <sysexits.h>
#include <stdlib.h>

#define RIGHTMOST_TWO 0x3

/**
 * example00 - A first example of the problems of not knowing order
 *   of operations.
 */
int
main (int argc, char *argv[])
{
  if (argc != 2)
    {
      printf ("Usage: example00 #\n");
      return EX_USAGE;
    }

  int x = atoi (argv[1]);

  if ((RIGHTMOST_TWO & x) == RIGHTMOST_TWO)
    printf ("The rightmost two bits are set in %d.\n", x);
  else
    printf ("The rightmost two bits are NOT set in %d.\n", x);

  return EX_OK;
} // main