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diff --git a/gnuradio-runtime/swig/buffer.i b/gnuradio-runtime/swig/buffer.i
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+++ b/gnuradio-runtime/swig/buffer.i
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+/* -*- c++ -*- */
+/*
+ * Copyright 2004,2013 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.
+ */
+
+class gr::buffer;
+typedef boost::shared_ptr<gr::buffer> gr::buffer_sptr;
+%template(buffer_sptr) boost::shared_ptr<gr::buffer>;
+%rename(buffer) gr::make_buffer;
+%ignore gr::buffer;
+
+gr::buffer_sptr 
+gr::make_buffer (int nitems, size_t sizeof_item, gr::block_sptr link);
+
+class gr::buffer_reader;
+typedef boost::shared_ptr<gr::buffer_reader> gr::buffer_reader_sptr;
+%template(buffer_reader_sptr) boost::shared_ptr<gr::buffer_reader>;
+%ignore gr::buffer_reader;
+
+%rename(buffer_add_reader) gr::buffer_add_reader;
+gr::buffer_reader_sptr
+gr::buffer_add_reader (gr::buffer_sptr buf, int nzero_preload, gr::block_sptr link);
+
+namespace gr {
+
+  class gr::buffer
+  {
+  public:
+    ~buffer();
+
+  private:
+    buffer(int nitems, size_t sizeof_item, gr::block_sptr link);
+  };
+
+  class gr::buffer_reader
+  {
+  public:
+    ~buffer_reader();
+
+  private:
+    friend class buffer;
+    buffer_reader(gr::buffer_sptr buffer, unsigned int read_index, gr::block_sptr link);
+  };
+
+  %rename(buffer_ncurrently_allocated) buffer_ncurrently_allocated;
+  long buffer_ncurrently_allocated();
+
+  %rename(buffer_reader_ncurrently_allocated) buffer_reader_ncurrently_allocated;
+  long buffer_reader_ncurrently_allocated();
+}