Minimal working example of using threads in C

threading.c

#include <pthread.h>
#include <stddef.h>
#include <stdio.h>

void *entry_point_0(void * input) {
  printf("Thread 0 started\n");
  sleep(10);
  printf("Thread 0 finished\n");
}

void *entry_point_1(void * input) {
  printf("Thread 1 started\n");
  sleep(8);
  printf("Thread 1 finished\n");
}

int main() {
  pthread_t thread0;
  pthread_t thread1;

  pthread_create(&thread0, NULL, entry_point_0, NULL);
  pthread_create(&thread1, NULL, entry_point_1, NULL);
  pthread_join(thread1, NULL);
  pthread_join(thread0, NULL);
  return 0;
}