Question

I’ve come across this piece of code in my O.S book:

void *foo()
{
     // does something

     pthread_exit(NULL);
}

What is the meaning of void *foo?
Does that mean the function return a pointer to something of type void?

Answer 1

void * means it returns a pointer to some type, it isn’t specified which. In order to be used the pointer is casted to the appropriate type and then used. The fact that void *foo is just a matter of spacing.

Check out this explanation