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diff --git a/indexlib/bitstream.h b/indexlib/bitstream.h
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+#ifndef LPC_BITSTREAM_H1102530057_INCLUDE_GUARD_
+#define LPC_BITSTREAM_H1102530057_INCLUDE_GUARD_
+/* This file is part of indexlib.
+ * Copyright (C) 2005 Luís Pedro Coelho <luis@luispedro.org>
+ *
+ * Indexlib is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation and available as file
+ * GPL_V2 which is distributed along with indexlib.
+ * 
+ * Indexlib 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
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA
+ * 
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of this program with any edition of
+ * the Qt library by Trolltech AS, Norway (or with modified versions
+ * of Qt that use the same license as Qt), and distribute linked
+ * combinations including the two.  You must obey the GNU General
+ * Public License in all respects for all of the code used other than
+ * Qt.  If you modify this file, you may extend this exception to
+ * your version of the file, but you are not obligated to do so.  If
+ * you do not wish to do so, delete this exception statement from
+ * your version.
+ */
+#include <vector>
+#include <inttypes.h>
+
+struct bitstream {
+	public:
+		bitstream( const unsigned char* data, unsigned size );
+		bitstream( unsigned char* data, unsigned size );
+
+		bitstream& operator << ( uint16_t );
+		bitstream& operator << ( uint32_t );
+
+		bitstream& operator >> ( uint16_t& );
+		bitstream& operator >> ( uint32_t& );
+
+		void putback( uint16_t );
+		void putback( uint32_t );
+
+		unsigned nbytes() const { return size_ / 8 + bool( size_ % 8 ); }
+		unsigned nbits() const { return size_; }
+		const unsigned char* as_byte_vector() const { return &bytes_[ 0 ]; }
+	private:
+		bool getbit();
+		unsigned char* bytes_;
+		const bool writeable_;
+		const unsigned size_;
+		unsigned cur_;
+		void putbit( bool );
+};
+
+template <typename T>
+	unsigned bits_for();
+
+#endif /* LPC_BITSTREAM_H1102530057_INCLUDE_GUARD_ */