X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=libcds%2Fsrc%2Fstatic_sequence%2Fwt_coder.h;h=3d22b217f220598d0fa2f8f53c593fa8123ce436;hb=a9846746dc7a55764591fcc273fd48c6049df962;hp=1a55397d11b1676e379923628eb8e3d055945053;hpb=efe894650813a19a0e1408eb5807e59f037afc3b;p=SXSI%2FXMLTree.git

diff --git a/libcds/src/static_sequence/wt_coder.h b/libcds/src/static_sequence/wt_coder.h
index 1a55397..3d22b21 100644
--- a/libcds/src/static_sequence/wt_coder.h
+++ b/libcds/src/static_sequence/wt_coder.h
@@ -36,6 +36,9 @@ using namespace std;
  */
 class wt_coder {
 	public:
+		wt_coder();
+		virtual void use();
+		virtual void unuse();
     virtual ~wt_coder() {}; 
     /** Tells if at level l the symbol is represented by a one or a zero */
 		virtual bool is_set(uint symbol, uint l)=0;
@@ -47,6 +50,8 @@ class wt_coder {
     virtual uint save(FILE *fp)=0;
     /** Loads a coder from a file, returns NULL in case of error */
     static wt_coder * load(FILE *fp);
+	protected:
+		uint user_count;
 };
 
 #include <wt_coder_huff.h>