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/* -*- c++ -*- */
/*
* Copyright 2004,2012 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_HOWTO_SQUARE_FF_H
#define INCLUDED_HOWTO_SQUARE_FF_H
#include <howto/api.h>
#include <gr_block.h>
namespace gr {
namespace howto {
/*!
* \brief square a stream of floats.
* \ingroup block
*
* \sa howto_square2_ff for a version that subclasses gr_sync_block.
*/
class HOWTO_API square_ff : virtual public gr_block
{
public:
/*
* We use boost::shared_ptr's instead of raw pointers for all
* access to gr_blocks (and many other data structures). The
* shared_ptr gets us transparent reference counting, which
* greatly simplifies storage management issues. This is
* especially helpful in our hybrid C++ / Python system.
*
* See http://www.boost.org/libs/smart_ptr/smart_ptr.htm
*
* gr::howto::square_ff::sptr
*/
typedef boost::shared_ptr<square_ff> sptr;
/*!
* \brief Return a shared_ptr to a new instance of howto::square_ff.
*
* To avoid accidental use of raw pointers, howto::square_ff's
* constructor is in a private implementation
* class. howto::square_ff::make is the public interface for
* creating new instances.
*/
static sptr make();
};
} // namespace howto
} // namespace gr
#endif /* INCLUDED_HOWTO_SQUARE_FF_H */
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