/* =================================================================
   Thread example: thread join, returning a value
   ================================================================= */

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

extern "C" void * my_proc(void *arg)
{
   int output;

   output = 1234;

   pthread_exit( (void *) &output );

   return(NULL);
}

/* =======================
   MAIN
   ======================= */

int main(int argc, char *argv[])
{
   pthread_t TID;	/* Thread ID used for thread_join() */

   int *out;


   if ( pthread_create(&TID, NULL, my_proc, NULL) != NULL )
   {
	 cout << "Cannot create thread" << endl;
	 exit(1);
   }

   pthread_join(TID, (void * *) &out );

   cout << "Thread return this value: " << *out << endl;
}