In-Reply-To: <d1mq8d$b5q$1@sea.gmane.org> nesotto@cs.auc.dk (Thorsten Ottosen) wrote (abridged):
7. the hash_ptr<> suggestion is better done with general indirected function
Did I miss where this was discussed? To recap, we were talking about adding something like: template<typename T> struct hash_ptr { size_t operator()(const T *p) const { return hash_value( *p ); } }; template<typename T> struct equal_ptr { bool operator()( const T *a, const T *b ) const { return *a == *b; } }; to the hash library for use as, eg: unordered_set< MyType *, hash_ptr<MyType>, equal_ptr<MyType> > What do you mean by using a "general indirected function" instead? -- Dave Harris, Nottingham, UK