CGAL users discussion list

[Thorben Kröger <>]

Hello,
I'm using a Polyhedron_3 datastructure and am putting Vertex_const_handles in 
a hash structure like this:

typedef std::tr1::unordered_map<Vertex_const_handle, int, 
CGAL::Handle_hash_function> Neighbours;

However, the CGAL::Handle_hash_function function does not seem to work, I get 
random results that change between runs; while when I change that function to 
return just a fixed integer, my program works as expected.

I got entangled in the CGAL template definitions, can someone help me to find 
out what's wrong here? It looks like the hash function might compare the 
address of temporaries or something...

Thanks,

Thorben