X-Git-Url: http://git.nguyen.vg/gitweb/?a=blobdiff_plain;f=src%2Fstatic_sequence%2Fwt_node.h;fp=src%2Fstatic_sequence%2Fwt_node.h;h=15ce49d2c6454ba9476954c8f4a3a9aa605017ff;hb=3fd4bcef236556c7f3bff1d2be8d3f4206245501;hp=0000000000000000000000000000000000000000;hpb=dc7a566a39187bfcea70737cda7278f858cd9842;p=SXSI%2Flibcds.git

diff --git a/src/static_sequence/wt_node.h b/src/static_sequence/wt_node.h
new file mode 100644
index 0000000..15ce49d
--- /dev/null
+++ b/src/static_sequence/wt_node.h
@@ -0,0 +1,60 @@
+/* wt_node.h
+ * Copyright (C) 2008, Francisco Claude, all rights reserved.
+ *
+ * wt_node
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+ 
+#ifndef wt_node_h
+#define wt_node_h
+
+#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);
+};
+
+#include <wt_node_internal.h>
+#include <wt_node_leaf.h>
+
+#endif