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

#define NUM_THREADS     5

void * PrintHello(void * threadid)
{
 long tid;
 tid = (long) threadid;
 printf("Hello World! It's me, thread #%ld!\n", tid);
 pthread_exit(NULL);
}

int main (int argc, char *argv[])
{
 pthread_t threads[NUM_THREADS];
 int rc;
 long t;
 for(t=0; t < NUM_THREADS; t++)
  {
   printf("In main: creating thread %ld\n", t);
   rc = pthread_create(&threads[t], NULL, PrintHello, (void *) t);
   if (rc)
    {
     printf("ERROR; return code from pthread_create() is %d\n", rc);
     exit(-1);
    }
  }
 /* This example omits the pthread_join() function. */
 /* Last thing that main() should do */
 pthread_exit(NULL);
}