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diff --git a/indexlib/memreference.h b/indexlib/memreference.h
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+++ b/indexlib/memreference.h
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+#ifndef LPC_MEMREFERENCE_H1108569807_INCLUDE_GUARD_
+#define LPC_MEMREFERENCE_H1108569807_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 "bitio.h"
+
+/**
+ * Works like a reference to a memory location
+ * which is written and read in our byte-format.
+ */
+template <typename T>
+struct memory_reference {
+	public:
+		explicit memory_reference( unsigned char* d ):
+			data_( d )
+			{
+			}
+		~memory_reference() { }
+		memory_reference& operator = ( const memory_reference& other ) {
+			operator=( T( other ) );
+			return *this;
+		}
+		memory_reference& operator = ( const T& value ) {
+			byte_io::write<T>( data_, value );
+			return *this;
+		}
+		operator T () const {
+			return byte_io::read<T>( data_ );
+		}
+		memory_reference( const memory_reference& other ):
+			data_( other.data_ )
+			{
+			}
+		/**
+		 * This is a sneaky method to change pointers
+		 */
+		void assign( const memory_reference& other ) {
+			data_ = other.data_;
+		}
+	private:
+		unsigned char* data_;
+};
+
+
+// A mixed and fairly random collection of helper functions
+
+template <typename T, typename U>
+memory_reference<T> operator += ( memory_reference<T> ref, U v ) {
+	return ref = ref + v;
+}
+
+template <typename T>
+memory_reference<T> operator ++( memory_reference<T> ref ) {
+	return ref = ref + 1;
+}
+
+template <typename T>
+memory_reference<T> operator --( memory_reference<T> ref ) {
+	return ref = ref - 1;
+}
+
+template <typename T>
+T operator ++( memory_reference<T> ref, int ) {
+	T v = ref;
+	ref = ref + 1;
+	return v;
+}
+
+template <typename T>
+T operator --( memory_reference<T> ref, int ) {
+	T v = ref;
+	ref = ref - 1;
+	return v;
+}
+
+template <typename T, typename U>
+memory_reference<T> operator -= ( memory_reference<T> ref, U v ) {
+	return ref = ref - v;
+}
+
+template <typename T, typename U>
+memory_reference<T> operator *= ( memory_reference<T> ref, U v ) {
+	return ref = ref * v;
+}
+
+
+
+#endif /* LPC_MEMREFERENCE_H1108569807_INCLUDE_GUARD_ */