X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=libcds%2Fsrc%2Futils%2Falphabet_mapper.h;h=faef2ffbac1242c3ee6088556548730da0f65741;hb=a9846746dc7a55764591fcc273fd48c6049df962;hp=125e0c6ee1fbfcb4d6b301cd867f6697f4a3e65a;hpb=efe894650813a19a0e1408eb5807e59f037afc3b;p=SXSI%2FXMLTree.git

diff --git a/libcds/src/utils/alphabet_mapper.h b/libcds/src/utils/alphabet_mapper.h
index 125e0c6..faef2ff 100644
--- a/libcds/src/utils/alphabet_mapper.h
+++ b/libcds/src/utils/alphabet_mapper.h
@@ -26,6 +26,7 @@
 #include <iostream>
 
 #define ALPHABET_MAPPER_NONE_HDR 2
+#define ALPHABET_MAPPER_CONT_HDR 3
 
 using namespace std;
 
@@ -35,14 +36,25 @@ using namespace std;
  */
 class alphabet_mapper {
   public:
+		alphabet_mapper();
     virtual ~alphabet_mapper() {}
+    /** Maps the symbol */
     virtual uint map(uint s)=0;
+    /** Unmaps the symbol */
     virtual uint unmap(uint s)=0;
+    /** Returns the size of the mapper */
     virtual uint size()=0;
+    /** Saves the mapper to a file */
     virtual uint save(FILE *fp)=0;
+    /** Loads the mapper from a file */
     static alphabet_mapper * load(FILE * fp);
+		virtual void use();
+		virtual void unuse();
+	protected:
+		uint user_count;
 };
 
 #include <alphabet_mapper_none.h>
+#include <alphabet_mapper_cont.h>
 
 #endif /* _ALPHABET_MAPPER_H */