+void FuncNode::update_loc_may_equal_map(void * new_loc, loc_set_t * old_locations)
+{
+ loc_set_t * neighbors = loc_may_equal_map->get(new_loc);
+
+ if (neighbors == NULL) {
+ neighbors = new loc_set_t();
+ loc_may_equal_map->put(new_loc, neighbors);
+ }
+
+ loc_set_iter * loc_it = old_locations->iterator();
+ while (loc_it->hasNext()) {
+ // new_loc: { old_locations, ... }
+ void * member = loc_it->next();
+ neighbors->add(member);
+
+ // for each i in old_locations, i : { new_loc, ... }
+ loc_set_t * _neighbors = loc_may_equal_map->get(member);
+ if (_neighbors == NULL) {
+ _neighbors = new loc_set_t();
+ loc_may_equal_map->put(member, _neighbors);
+ }
+ _neighbors->add(new_loc);
+ }
+}