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

void *foo() {
  printf("called foo\n");
}

int main() {
  pthread_t t;
  int rc = 0;
  rc = pthread_create(&t,0,&foo,0);
  usleep(5000);
  printf("return code is:%d\n",rc);
}