Import libcds.

[SXSI/libcds.git] / src / static_sequence / static_sequence_bs.h

diff --git a/src/static_sequence/static_sequence_bs.h b/src/static_sequence/static_sequence_bs.h
new file mode 100644 (file)
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+++ b/src/static_sequence/static_sequence_bs.h
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+/* static_sequence.h
+ * Copyright (C) 2008, Francisco Claude, all rights reserved.
+ *
+ * static_sequence definition
+ *
+ * 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 _STATIC_SEQUENCE_BS_H
+#define _STATIC_SEQUENCE_BS_H
+
+
+#include <basics.h>
+#include <static_sequence.h>
+#include <static_bitsequence.h>
+
+/** static_sequence represented using one bitmap per symbol, doesn't support efficient access
+ * 
+ *  @author Francisco Claude
+ */
+class static_sequence_bs : public static_sequence {
+  
+public:
+  static_sequence_bs(uint * seq, uint n, alphabet_mapper * am, static_bitsequence_builder * bmb);
+  virtual ~static_sequence_bs();
+
+  virtual uint rank(uint c, uint i);
+  
+  virtual uint select(uint c, uint i);
+  uint select_next(uint c, uint i);
+
+  virtual uint access(uint i);
+
+  virtual uint size();
+
+  virtual uint save(FILE * fp);
+
+  /** Reads a bitmap determining the type */
+  static static_sequence_bs * load(FILE * fp);
+
+  uint select_next_unsafe(uint c, uint i){
+         static_bitsequence * bs = bitmaps[c];
+         static_bitsequence_sdarray * sd = reinterpret_cast<static_bitsequence_sdarray *>(bs);
+         return sd->select_next1_unsafe(i);
+  };
+ 
+protected:
+  uint sigma;
+       static_bitsequence ** bitmaps;
+       alphabet_mapper * am;
+
+       static_sequence_bs();
+  
+};
+
+
+#endif  /* _STATIC_SEQUENCE_BS_H */
+