Hello from thread

#include <stdio.h>
 #include <pthread.h>
 void* hello (void* tid ) {
  printf ("Hello␣from␣thread␣%d\n" , (int) tid ) ;
 }
 int main() {
 pthread_t tid [ 10 ] ;
 int i ;
  for ( i = 0; i < 10; i++) {
  pthread_create(&tid[i] , NULL, hello , (void*)i ) ;
 }
 pthread_exit (NULL) ;
 }