virtual uint select(uint symbol, uint pos, uint level, wt_coder * c);
virtual uint access(uint pos);
virtual uint access(uint pos, uint &rank);
+ virtual void access(vector<int> &result, uint i, uint j, uint min, uint max, uint l, uint pivot);
+ virtual void access(vector<int> &result, uint i, uint j);
+ virtual uint access(uint i, uint j, uint min, uint max, uint l, uint pivot);
virtual uint size();
virtual uint save(FILE *fp);
static wt_node_internal * load(FILE *fp);