CGAL users discussion list

[Stefan Schirra <>]

Tom Bobach wrote:

> @ Stefan:
> Is there a way to iterate over the elements in the hashmap? This is what I 
> need the std::set for - collect a bunch of handles. The chained_map 
> used in the Unique_hash_map supports some rudimetary iteration, yet I cannot 
> access it.

To be honest, I don't know. Apparently, there is nothing like that in 
the public interface. I guess, I would use a list of all the handles 
stored in the hash map and store the list position of an element in the 
hash map as well. Gives you both, iteration and (almost) constant time 
checking for "being defined".

best regards

        Stefan