I am trying to do the following in order to create a templatized data structure which is both hashed and sequenced.. template <class T> // class T will always have a member clientid class seq_hash_list { typedef multi_index_container < T *, indexed_by < sequenced< >, hashed_unique >

client_info_map;

// typedef client_info_map::nth_index<1>::type clinfo_map_hash; // typedef client_info_map::nth_index<0>::type clinfo_map_list; public: client_info_map _clmap; }; This compiles fine. But when i uncomment the two index typedefs (above), the compilation fails saying "ISO C++ forbids declaration of `nth_index' with no type". Is there any other way of achieving the same result? Thanks, Sharad