How to return a value from pthread threads in C?

Question

I\'am new to C and would like to play with threads a bit. I would like to return some value from a thread using pthread_exit()

My code is as follows:

Answer 1

You are returning the address of a local variable, which no longer exists when the thread function exits. In any case, why call pthread_exit? why not simply return a value from the thread function?

void *myThread()
{
   return (void *) 42;
}

and then in main:

printf("%d\n",(int)status);   

If you need to return a complicated value such a structure, it's probably easiest to allocate it dynamically via malloc() and return a pointer. Of course, the code that initiated the thread will then be responsible for freeing the memory.