Programming

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

void *PrintThread1(void *threadid)
{
  int i;
  for (i=0;i<50;i++)
  {
    printf("\n%d: Thread1!\n", threadid);
  }
}
void *PrintThread2(void *threadid)
{
    int i;
    for (i=0;i<50;i++)
    printf("\n%d: Thread2!\n", threadid);
    pthread_exit(NULL);
}

int main(int argc, char *argv[])
{
  pthread_t threads, threads1;
  int rc, t1=0, t2=1;

  printf("Creating thread %d\n", t1);
  rc = pthread_create(&threads, NULL, PrintThread1, (void *)t1);
    if (rc)
    {
      printf("ERROR; return code from pthread_create() is %d\n", rc);
    exit(-1);
    }
  printf("Creating thread %d\n", t2);
  rc = pthread_create(&threads1, NULL, PrintThread2, (void *)t2);
    if (rc)
    {
      printf("ERROR; return code from pthread_create() is %d\n", rc);
    exit(-1);
    }

  pthread_exit(NULL);
}