Added new functionality

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

diff --git a/libcds/src/static_sequence/wt_coder.h b/libcds/src/static_sequence/wt_coder.h
index 3d22b21..5f6d436 100644 (file)
--- a/libcds/src/static_sequence/wt_coder.h
+++ b/libcds/src/static_sequence/wt_coder.h
@@ -46,6 +46,10 @@ class wt_coder {
                virtual bool done(uint symbol, uint l)=0;
     /** Returns the size of the coder */
     virtual uint size()=0;
+    /** Returns the depth of the tree */
+    virtual uint depth() {
+        return -1; // Implemented in wt_coder_binary
+    }
     /** Saves the coder to a file, returns 0 in case of success */
     virtual uint save(FILE *fp)=0;
     /** Loads a coder from a file, returns NULL in case of error */