Question

I have the memory location of a struct stored as an integer. How can I retrieve the struct stored at that location and make a pointer to the object at that location?

Structure object;
int memLocation = &object;

Structure objectCopy = (objectAtLocation) memLocation;
Structure *objectPointer = (pointerToLocation) memLocation;

Answer 1

Using ints instead of pointers is very bad form, going back even to the first edition of K&R. So what you’re doing is bad. But assuming you have no choice…

if Object is a Structure, then &object is a Structure *. So the proper un-cast is basically your line 3:

Structure *objectPointer = (Structure *) memLocation;