Example: End a thread in a Pthread program

/*
Filename: ATEST12.QCSRC
The output of this example is as follows:
 Enter Testcase - LIBRARY/ATEST12
 Create/start a thread
 Wait for the thread to complete, and release its resources
 Thread: End with success
 Check the thread status
 Main completed
*/
#define _MULTI_THREADED
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define checkResults(string, val) {             \
 if (val) {                                     \
   printf("Failed with %d at %s", val, string); \
   exit(1);                                     \
 }                                              \
}
 
const int THREADFAIL = 1;
const int THREADPASS = 0;
 
void *theThread(void *parm)
{
   printf("Thread: End with success\n");
   pthread_exit(__VOID(THREADPASS));
   printf("Thread: Did not expect to get here!\n");
   return __VOID(THREADFAIL);
}
 
int main(int argc, char **argv)
{
  pthread_t             thread;
  int                   rc=0;
  void                 *status;
 
  printf("Enter Testcase - %s\n", argv[0]);
 
  printf("Create/start a thread\n");
  rc = pthread_create(&thread, NULL, theThread, NULL);
  checkResults("pthread_create()\n", rc);
 
  printf("Wait for the thread to complete, and release its resources\n");
  rc = pthread_join(thread, &status);
  checkResults("pthread_join()\n", rc);
 
  printf("Check the thread status\n");
  if (__INT(status) != THREADPASS) {
     printf("The thread failed\n");
  }
 
  printf("Main completed\n");
  return 0;
}