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<h1>gr_feval.h</h1> </div>
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<a href="gr__feval_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 2006 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</span>
<a name="l00018"></a>00018 <span class="comment"> * along with GNU Radio; see the file COPYING. If not, write to</span>
<a name="l00019"></a>00019 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street,</span>
<a name="l00020"></a>00020 <span class="comment"> * Boston, MA 02110-1301, USA.</span>
<a name="l00021"></a>00021 <span class="comment"> */</span>
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef INCLUDED_GR_FEVAL_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_GR_FEVAL_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <gr_complex.h></span>
<a name="l00026"></a>00026 <span class="comment"></span>
<a name="l00027"></a>00027 <span class="comment">/*!</span>
<a name="l00028"></a>00028 <span class="comment"> * \brief base class for evaluating a function: double -> double</span>
<a name="l00029"></a>00029 <span class="comment"> * \ingroup misc</span>
<a name="l00030"></a>00030 <span class="comment"> *</span>
<a name="l00031"></a>00031 <span class="comment"> * This class is designed to be subclassed in Python or C++</span>
<a name="l00032"></a>00032 <span class="comment"> * and is callable from both places. It uses SWIG's</span>
<a name="l00033"></a>00033 <span class="comment"> * "director" feature to implement the magic.</span>
<a name="l00034"></a>00034 <span class="comment"> * It's slow. Don't use it in a performance critical path.</span>
<a name="l00035"></a>00035 <span class="comment"> *</span>
<a name="l00036"></a>00036 <span class="comment"> * Override eval to define the behavior.</span>
<a name="l00037"></a>00037 <span class="comment"> * Use calleval to invoke eval (this kludge is required to allow a</span>
<a name="l00038"></a>00038 <span class="comment"> * python specific "shim" to be inserted.</span>
<a name="l00039"></a>00039 <span class="comment"> */</span>
<a name="l00040"></a><a class="code" href="classgr__feval__dd.html">00040</a> <span class="keyword">class </span><a class="code" href="classgr__feval__dd.html" title="base class for evaluating a function: double -&gt; doubleThis class is designed to be subclassed in P...">gr_feval_dd</a>
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 <span class="keyword">protected</span>:<span class="comment"></span>
<a name="l00043"></a>00043 <span class="comment"> /*!</span>
<a name="l00044"></a>00044 <span class="comment"> * \brief override this to define the function</span>
<a name="l00045"></a>00045 <span class="comment"> */</span>
<a name="l00046"></a>00046 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classgr__feval__dd.html#a15b1f59f7dedf6ea86a7e3bbbac1dc27" title="override this to define the function">eval</a>(<span class="keywordtype">double</span> x);
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <span class="keyword">public</span>:
<a name="l00049"></a><a class="code" href="classgr__feval__dd.html#ad29f05a126b720d8ec7e62b85c0615f9">00049</a> <a class="code" href="classgr__feval__dd.html#ad29f05a126b720d8ec7e62b85c0615f9">gr_feval_dd</a>() {}
<a name="l00050"></a>00050 <span class="keyword">virtual</span> <a class="code" href="classgr__feval__dd.html#a6c654fe33b5ed8a2b3cc35a6c2d800bc">~gr_feval_dd</a>();
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="classgr__feval__dd.html#aafd915ce4bc5455d2700b31f41037a4d">calleval</a>(<span class="keywordtype">double</span> x); <span class="comment">// invoke "eval"</span>
<a name="l00053"></a>00053 };
<a name="l00054"></a>00054 <span class="comment"></span>
<a name="l00055"></a>00055 <span class="comment">/*!</span>
<a name="l00056"></a>00056 <span class="comment"> * \brief base class for evaluating a function: complex -> complex</span>
<a name="l00057"></a>00057 <span class="comment"> * \ingroup misc</span>
<a name="l00058"></a>00058 <span class="comment"> *</span>
<a name="l00059"></a>00059 <span class="comment"> * This class is designed to be subclassed in Python or C++</span>
<a name="l00060"></a>00060 <span class="comment"> * and is callable from both places. It uses SWIG's</span>
<a name="l00061"></a>00061 <span class="comment"> * "director" feature to implement the magic.</span>
<a name="l00062"></a>00062 <span class="comment"> * It's slow. Don't use it in a performance critical path.</span>
<a name="l00063"></a>00063 <span class="comment"> *</span>
<a name="l00064"></a>00064 <span class="comment"> * Override eval to define the behavior.</span>
<a name="l00065"></a>00065 <span class="comment"> * Use calleval to invoke eval (this kludge is required to allow a</span>
<a name="l00066"></a>00066 <span class="comment"> * python specific "shim" to be inserted.</span>
<a name="l00067"></a>00067 <span class="comment"> */</span>
<a name="l00068"></a><a class="code" href="classgr__feval__cc.html">00068</a> <span class="keyword">class </span><a class="code" href="classgr__feval__cc.html" title="base class for evaluating a function: complex -&gt; complexThis class is designed to be subclassed in...">gr_feval_cc</a>
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 <span class="keyword">protected</span>:<span class="comment"></span>
<a name="l00071"></a>00071 <span class="comment"> /*!</span>
<a name="l00072"></a>00072 <span class="comment"> * \brief override this to define the function</span>
<a name="l00073"></a>00073 <span class="comment"> */</span>
<a name="l00074"></a>00074 <span class="keyword">virtual</span> <a class="code" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> <a class="code" href="classgr__feval__cc.html#a6eec5763644f7958e5ce8cb3b41156ef" title="override this to define the function">eval</a>(<a class="code" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> x);
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keyword">public</span>:
<a name="l00077"></a><a class="code" href="classgr__feval__cc.html#aaaf44bd77fced7dacb157e70e2ebfa67">00077</a> <a class="code" href="classgr__feval__cc.html#aaaf44bd77fced7dacb157e70e2ebfa67">gr_feval_cc</a>() {}
<a name="l00078"></a>00078 <span class="keyword">virtual</span> <a class="code" href="classgr__feval__cc.html#abff84e3d4a980ea6cd0ecbf8ff6c9dc5">~gr_feval_cc</a>();
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keyword">virtual</span> <a class="code" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> <a class="code" href="classgr__feval__cc.html#a5227967ceaf6038eb9946761fd801789">calleval</a>(<a class="code" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> x); <span class="comment">// invoke "eval"</span>
<a name="l00081"></a>00081 };
<a name="l00082"></a>00082 <span class="comment"></span>
<a name="l00083"></a>00083 <span class="comment">/*!</span>
<a name="l00084"></a>00084 <span class="comment"> * \brief base class for evaluating a function: long -> long</span>
<a name="l00085"></a>00085 <span class="comment"> * \ingroup misc</span>
<a name="l00086"></a>00086 <span class="comment"> *</span>
<a name="l00087"></a>00087 <span class="comment"> * This class is designed to be subclassed in Python or C++</span>
<a name="l00088"></a>00088 <span class="comment"> * and is callable from both places. It uses SWIG's</span>
<a name="l00089"></a>00089 <span class="comment"> * "director" feature to implement the magic.</span>
<a name="l00090"></a>00090 <span class="comment"> * It's slow. Don't use it in a performance critical path.</span>
<a name="l00091"></a>00091 <span class="comment"> *</span>
<a name="l00092"></a>00092 <span class="comment"> * Override eval to define the behavior.</span>
<a name="l00093"></a>00093 <span class="comment"> * Use calleval to invoke eval (this kludge is required to allow a</span>
<a name="l00094"></a>00094 <span class="comment"> * python specific "shim" to be inserted.</span>
<a name="l00095"></a>00095 <span class="comment"> */</span>
<a name="l00096"></a><a class="code" href="classgr__feval__ll.html">00096</a> <span class="keyword">class </span><a class="code" href="classgr__feval__ll.html" title="base class for evaluating a function: long -&gt; longThis class is designed to be subclassed in Pytho...">gr_feval_ll</a>
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <span class="keyword">protected</span>:<span class="comment"></span>
<a name="l00099"></a>00099 <span class="comment"> /*!</span>
<a name="l00100"></a>00100 <span class="comment"> * \brief override this to define the function</span>
<a name="l00101"></a>00101 <span class="comment"> */</span>
<a name="l00102"></a>00102 <span class="keyword">virtual</span> <span class="keywordtype">long</span> <a class="code" href="classgr__feval__ll.html#ae578c33481520dfb2575162e6c75ec68" title="override this to define the function">eval</a>(<span class="keywordtype">long</span> x);
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keyword">public</span>:
<a name="l00105"></a><a class="code" href="classgr__feval__ll.html#a32b51f998cbe43d83030551798f39205">00105</a> <a class="code" href="classgr__feval__ll.html#a32b51f998cbe43d83030551798f39205">gr_feval_ll</a>() {}
<a name="l00106"></a>00106 <span class="keyword">virtual</span> <a class="code" href="classgr__feval__ll.html#a464e3afea06a99c3a6b96b2b1aea2c2e">~gr_feval_ll</a>();
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keyword">virtual</span> <span class="keywordtype">long</span> <a class="code" href="classgr__feval__ll.html#a37308551196d95bd21e9023838c4e598">calleval</a>(<span class="keywordtype">long</span> x); <span class="comment">// invoke "eval"</span>
<a name="l00109"></a>00109 };
<a name="l00110"></a>00110 <span class="comment"></span>
<a name="l00111"></a>00111 <span class="comment">/*!</span>
<a name="l00112"></a>00112 <span class="comment"> * \brief base class for evaluating a function: void -> void</span>
<a name="l00113"></a>00113 <span class="comment"> * \ingroup misc</span>
<a name="l00114"></a>00114 <span class="comment"> *</span>
<a name="l00115"></a>00115 <span class="comment"> * This class is designed to be subclassed in Python or C++</span>
<a name="l00116"></a>00116 <span class="comment"> * and is callable from both places. It uses SWIG's</span>
<a name="l00117"></a>00117 <span class="comment"> * "director" feature to implement the magic.</span>
<a name="l00118"></a>00118 <span class="comment"> * It's slow. Don't use it in a performance critical path.</span>
<a name="l00119"></a>00119 <span class="comment"> *</span>
<a name="l00120"></a>00120 <span class="comment"> * Override eval to define the behavior.</span>
<a name="l00121"></a>00121 <span class="comment"> * Use calleval to invoke eval (this kludge is required to allow a</span>
<a name="l00122"></a>00122 <span class="comment"> * python specific "shim" to be inserted.</span>
<a name="l00123"></a>00123 <span class="comment"> */</span>
<a name="l00124"></a><a class="code" href="classgr__feval.html">00124</a> <span class="keyword">class </span><a class="code" href="classgr__feval.html" title="base class for evaluating a function: void -&gt; voidThis class is designed to be subclassed in Pytho...">gr_feval</a>
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 <span class="keyword">protected</span>:<span class="comment"></span>
<a name="l00127"></a>00127 <span class="comment"> /*!</span>
<a name="l00128"></a>00128 <span class="comment"> * \brief override this to define the function</span>
<a name="l00129"></a>00129 <span class="comment"> */</span>
<a name="l00130"></a>00130 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgr__feval.html#a4b1d1b23d8c7d3726bc4be5210fcb993" title="override this to define the function">eval</a>();
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keyword">public</span>:
<a name="l00133"></a><a class="code" href="classgr__feval.html#a6e57706819b575cec89a01ab235b5705">00133</a> <a class="code" href="classgr__feval.html#a6e57706819b575cec89a01ab235b5705">gr_feval</a>() {}
<a name="l00134"></a>00134 <span class="keyword">virtual</span> <a class="code" href="classgr__feval.html#a164e56f9fe33907647b5d819e821f6f8">~gr_feval</a>();
<a name="l00135"></a>00135
<a name="l00136"></a>00136 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgr__feval.html#a4126a0f08351c23581fbef86300e40f4">calleval</a>(); <span class="comment">// invoke "eval"</span>
<a name="l00137"></a>00137 };
<a name="l00138"></a>00138 <span class="comment"></span>
<a name="l00139"></a>00139 <span class="comment">/*!</span>
<a name="l00140"></a>00140 <span class="comment"> * \brief trivial examples / test cases showing C++ calling Python code</span>
<a name="l00141"></a>00141 <span class="comment"> */</span>
<a name="l00142"></a>00142 <span class="keywordtype">double</span> <a class="code" href="gr__feval_8h.html#ad17c10bd7c523180735861981e47ab00" title="trivial examples / test cases showing C++ calling Python code">gr_feval_dd_example</a>(<a class="code" href="classgr__feval__dd.html" title="base class for evaluating a function: double -&gt; doubleThis class is designed to be subclassed in P...">gr_feval_dd</a> *f, <span class="keywordtype">double</span> x);
<a name="l00143"></a>00143 <a class="code" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> <a class="code" href="gr__feval_8h.html#a959c0fc6cb09897a5a6b86bb67c041c9">gr_feval_cc_example</a>(<a class="code" href="classgr__feval__cc.html" title="base class for evaluating a function: complex -&gt; complexThis class is designed to be subclassed in...">gr_feval_cc</a> *f, <a class="code" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> x);
<a name="l00144"></a>00144 <span class="keywordtype">long</span> <a class="code" href="gr__feval_8h.html#a6b228b6e5ebabe5b949a5cbc2800f348">gr_feval_ll_example</a>(<a class="code" href="classgr__feval__ll.html" title="base class for evaluating a function: long -&gt; longThis class is designed to be subclassed in Pytho...">gr_feval_ll</a> *f, <span class="keywordtype">long</span> x);
<a name="l00145"></a>00145 <span class="keywordtype">void</span> <a class="code" href="gr__feval_8h.html#a735665363a356d37fb8f7936ac49cb09">gr_feval_example</a>(<a class="code" href="classgr__feval.html" title="base class for evaluating a function: void -&gt; voidThis class is designed to be subclassed in Pytho...">gr_feval</a> *f);
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_GR_FEVAL_H */</span>
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