/*
 * is-little-endian.c
 */

#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <inttypes.h>
#include <byteswap.h>

typedef unsigned char* byte_pointer;

int is_little_endian() {
  int test_num = 0xff;
  byte_pointer byte_start = (byte_pointer) &test_num;

  if (byte_start[0] == 0xff) {
    return 1;
  }
  return 0;
}
 

 int
 main(int argc, char *argv[])
 {
   uint64_t x;

   if (argc != 2) {
       fprintf(stderr, "Usage: %s <num>\n", argv[0]);
       exit(EXIT_FAILURE);
   }

   x = strtoul(argv[1], NULL, 0);
   printf("0x%" PRIx64 " ==> 0x%" PRIx64 "\n", x, bswap_64(x));

   exit(EXIT_SUCCESS);
 }