1#include <inttypes.h>
2#include <pthread.h>
3#include <stdio.h>
4#include <stdlib.h>
5#include <string.h>
6
7static void *thread_main(void *arg)
8{
9  uintptr_t address = (uintptr_t)&arg;
10
11  printf("alignment = %" PRIuPTR "\n", address & 3U);
12
13  return NULL;
14}
15
16int main(int argc, char **argv)
17{
18  pthread_t t;
19  int e;
20
21  if ((e = pthread_create(&t, NULL, thread_main, NULL)) != 0)
22    {
23      fprintf(stderr, "pthread_create: %s\n", strerror(e));
24      exit(1);
25    }
26
27  if ((e = pthread_join(t, NULL)) != 0)
28    {
29      fprintf(stderr, "pthread_join: %s\n", strerror(e));
30      exit(1);
31    }
32
33  exit(0);
34}
35