wt_node_internal(uchar * seq, uint n, uint l, wt_coder * c, static_bitsequence_builder * bmb);
virtual ~wt_node_internal();
virtual uint rank(uint symbol, uint pos, uint level, wt_coder * c);
+ virtual uint rankLessThan(uint &symbol, uint pos, uint level, wt_coder * c);
+ virtual uint rankLessThan(uint &symbol, uint pos);
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 uint size();
virtual uint save(FILE *fp);
static wt_node_internal * load(FILE *fp);