/* -*- c++ -*- */
/*
 * Copyright 2004,2009,2010,2012 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.
 */

// @WARNING@

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <@NAME_IMPL@.h>
#include <gnuradio/io_signature.h>

namespace gr {
  namespace blocks {

    @NAME@::sptr @NAME@::make(size_t vlen)
    {
      return gnuradio::get_initial_sptr(new @NAME_IMPL@(vlen));
    }

    @NAME_IMPL@::@NAME_IMPL@(size_t vlen)
      : sync_block ("@NAME@",
		       io_signature::make (1, -1, sizeof (@I_TYPE@)*vlen),
		       io_signature::make (1,  1, sizeof (@O_TYPE@)*vlen)),
      d_vlen(vlen)
    {
    }

    int
    @NAME_IMPL@::work(int noutput_items,
		      gr_vector_const_void_star &input_items,
		      gr_vector_void_star &output_items)
    {
      @O_TYPE@ *optr = (@O_TYPE@ *) output_items[0];

      int ninputs = input_items.size ();

      for (size_t i = 0; i < noutput_items*d_vlen; i++){
	@I_TYPE@ acc = ((@I_TYPE@ *) input_items[0])[i];
	for (int j = 1; j < ninputs; j++)
	  acc -= ((@I_TYPE@ *) input_items[j])[i];

	*optr++ = (@O_TYPE@) acc;
      }

      return noutput_items;
    }

  } /* namespace blocks */
} /* namespace gr */
