1 #include <inttypes.h> 2 #include <pthread.h> 3 #include <stdio.h> 4 #include <stdlib.h> 5 #include <string.h> 6 7 static 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 16 int 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
