wt_node_internal(uchar * seq, uint n, uint l, wt_coder * c, static_bitsequence_builder * bmb, uint, uint *);
virtual ~wt_node_internal();
virtual uint rank(uint symbol, uint pos, uint level, wt_coder * c);
wt_node_internal(uchar * seq, uint n, uint l, wt_coder * c, static_bitsequence_builder * bmb, uint, uint *);
virtual ~wt_node_internal();
virtual uint rank(uint symbol, uint pos, uint level, wt_coder * c);