Definition

A type Key is a model of the concept Hashable if the specializations boost::hash<Key> and std::hash<Key> exist.

Has models
: All handles and indices of CGAL data structures
: All handles of OpenMesh, by including the specializations of the graph_traits header files provided by CGAL. They can be disables by defining the macro CGAL_DISABLE_HASH_OPENMESH.

See also: CGAL::Unique_hash_map<Key,Mapped,Hash>; std::unordered_set; std::unordered_map; boost::unordered_set; boost::unordered_map