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<h1>gr_sptr_magic.h</h1>  </div>
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<a href="gr__sptr__magic_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c++ -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright 2008 Free Software Foundation, Inc.</span>
<a name="l00004"></a>00004 <span class="comment"> * </span>
<a name="l00005"></a>00005 <span class="comment"> * This file is part of GNU Radio</span>
<a name="l00006"></a>00006 <span class="comment"> * </span>
<a name="l00007"></a>00007 <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span>
<a name="l00010"></a>00010 <span class="comment"> * any later version.</span>
<a name="l00011"></a>00011 <span class="comment"> * </span>
<a name="l00012"></a>00012 <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00015"></a>00015 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> * </span>
<a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU General Public License along</span>
<a name="l00018"></a>00018 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span>
<a name="l00019"></a>00019 <span class="comment"> * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021 <span class="preprocessor">#ifndef INCLUDED_GR_SPTR_MAGIC_H</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_GR_SPTR_MAGIC_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include &lt;boost/shared_ptr.hpp&gt;</span>
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 <span class="keyword">class </span><a class="code" href="classgr__basic__block.html" title="The abstract base class for all signal processing blocks.Basic blocks are the bare abstraction of an ...">gr_basic_block</a>;
<a name="l00027"></a>00027 <span class="keyword">class </span><a class="code" href="classgr__hier__block2.html" title="Hierarchical container class for gr_block&amp;#39;s and gr_hier_block2&amp;#39;s.">gr_hier_block2</a>;
<a name="l00028"></a>00028 
<a name="l00029"></a>00029 <span class="keyword">namespace </span>gnuradio {
<a name="l00030"></a>00030 
<a name="l00031"></a>00031   <span class="keyword">namespace </span>detail {
<a name="l00032"></a>00032     
<a name="l00033"></a><a class="code" href="classgnuradio_1_1detail_1_1sptr__magic.html">00033</a>     <span class="keyword">class </span><a class="code" href="classgnuradio_1_1detail_1_1sptr__magic.html">sptr_magic</a> {
<a name="l00034"></a>00034     <span class="keyword">public</span>:
<a name="l00035"></a>00035       <span class="keyword">static</span> <a class="code" href="classboost_1_1shared__ptr.html">boost::shared_ptr&lt;gr_basic_block&gt;</a> fetch_initial_sptr(<a class="code" href="classgr__basic__block.html" title="The abstract base class for all signal processing blocks.Basic blocks are the bare abstraction of an ...">gr_basic_block</a> *p);
<a name="l00036"></a>00036       <span class="keyword">static</span> <span class="keywordtype">void</span> create_and_stash_initial_sptr(<a class="code" href="classgr__hier__block2.html" title="Hierarchical container class for gr_block&amp;#39;s and gr_hier_block2&amp;#39;s.">gr_hier_block2</a> *p);
<a name="l00037"></a>00037     };
<a name="l00038"></a>00038   };
<a name="l00039"></a>00039 
<a name="l00040"></a>00040   <span class="comment">/* </span>
<a name="l00041"></a>00041 <span class="comment">   * \brief New!  Improved!  Standard method to get/create the boost::shared_ptr for a block.</span>
<a name="l00042"></a>00042 <span class="comment">   */</span>
<a name="l00043"></a>00043   <span class="keyword">template</span>&lt;<span class="keyword">class</span> T&gt;
<a name="l00044"></a>00044   <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">boost::shared_ptr&lt;T&gt;</a>
<a name="l00045"></a>00045   get_initial_sptr(T *p)
<a name="l00046"></a>00046   {
<a name="l00047"></a>00047     <span class="keywordflow">return</span> boost::dynamic_pointer_cast&lt;T, <a class="code" href="classgr__basic__block.html" title="The abstract base class for all signal processing blocks.Basic blocks are the bare abstraction of an ...">gr_basic_block</a>&gt;(detail::sptr_magic::fetch_initial_sptr(p));
<a name="l00048"></a>00048   }
<a name="l00049"></a>00049 };
<a name="l00050"></a>00050 
<a name="l00051"></a>00051 <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_GR_SPTR_MAGIC_H */</span>
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