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diff --git a/gr-digital/include/digital/map_bb.h b/gr-digital/include/digital/map_bb.h
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+++ b/gr-digital/include/digital/map_bb.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2006,2012 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef INCLUDED_GR_MAP_BB_H
+#define INCLUDED_GR_MAP_BB_H
+
+#include <digital/api.h>
+#include <gr_sync_block.h>
+
+namespace gr {
+  namespace digital {
+
+    /*!
+     * \brief output[i] = map[input[i]]
+     * \ingroup coding_blk
+     *
+     * This block maps an incoming signal to the value in the map.
+     * The block expects that the incoming signal has a maximum
+     * value of len(map)-1.
+     *
+     * -> output[i] = map[input[i]]
+     *
+     * \param map a vector of integers.
+     */
+
+    class DIGITAL_API map_bb : virtual public gr_sync_block
+    {
+    public:
+      // gr::digital::map_bb::sptr
+      typedef boost::shared_ptr<map_bb> sptr;
+      
+      static sptr make(const std::vector<int> &map);
+
+      virtual void set_map(const std::vector<int> &map) = 0;
+      virtual std::vector<int> map() const = 0;
+    };
+
+  } /* namespace digital */
+} /* namespace gr */
+
+#endif /* INCLUDED_GR_MAP_BB_H */