Add nextNodeBefore primitive.

[SXSI/XMLTree.git] / libcds / src / static_sequence / wt_node.h

diff --git a/libcds/src/static_sequence/wt_node.h b/libcds/src/static_sequence/wt_node.h
index 14ea05c..15ce49d 100644 (file)
--- a/libcds/src/static_sequence/wt_node.h
+++ b/libcds/src/static_sequence/wt_node.h
@@ -24,18 +24,31 @@
 
 #include <basics.h>
 #include <wt_coder.h>
+#include <vector>
 
 #define WT_NODE_NULL_HDR 0
 #define WT_NODE_INTERNAL_HDR 2
 #define WT_NODE_LEAF_HDR 3
 
-
+/** Base clase for nodes in the wavelet tree  
+ * 
+ *  @author Francisco Claude
+ */
 class wt_node {
        public:
     virtual ~wt_node() {} 
                virtual uint rank(uint symbol, uint pos, uint l, wt_coder * c)=0;
+               virtual uint rankLessThan(uint &symbol, uint pos) = 0;
                virtual uint select(uint symbol, uint pos, uint l, wt_coder * c)=0;
                virtual uint access(uint pos)=0;
+               virtual uint access(uint pos, uint &rank)
+                {
+                    assert(0); // Implemented only in wt_node_internal
+                    return -1;
+                }
+                virtual void access(std::vector<int> &result, uint i, uint j, uint min, uint max, uint l, uint pivot)=0;
+                virtual void access(std::vector<int> &result, uint i, uint j)=0;
+                virtual uint access(uint i, uint j, uint min, uint max, uint l, uint pivot)=0;
                virtual uint size()=0;
     virtual uint save(FILE *fp)=0;
     static wt_node * load(FILE *fp);
@@ -45,4 +58,3 @@ class wt_node {
 #include <wt_node_leaf.h>
 
 #endif
-