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legrand c3aec878e5 Paradiseo-eo sources added 
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<h1>eoSequentialSelect.h</h1><div class="fragment"><pre class="fragment">00001 <span class="comment">// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-</span>
00002
00003 <span class="comment">//-----------------------------------------------------------------------------</span>
00004 <span class="comment">// eoSequential.h</span>
00005 <span class="comment">// (c) GeNeura Team, 1998 - Maarten Keijzer 2000, Marc Schoenauer, 2002</span>
00006 <span class="comment">/*</span>
00007 <span class="comment"> This library is free software; you can redistribute it and/or</span>
00008 <span class="comment"> modify it under the terms of the GNU Lesser General Public</span>
00009 <span class="comment"> License as published by the Free Software Foundation; either</span>
00010 <span class="comment"> version 2 of the License, or (at your option) any later version.</span>
00011 <span class="comment"></span>
00012 <span class="comment"> This library is distributed in the hope that it will be useful,</span>
00013 <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
00014 <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
00015 <span class="comment"> Lesser General Public License for more details.</span>
00016 <span class="comment"></span>
00017 <span class="comment"> You should have received a copy of the GNU Lesser General Public</span>
00018 <span class="comment"> License along with this library; if not, write to the Free Software</span>
00019 <span class="comment"> Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
00020 <span class="comment"></span>
00021 <span class="comment"> Contact: todos@geneura.ugr.es, http://geneura.ugr.es</span>
00022 <span class="comment"> Marc.Schoenauer@polytechnique.fr</span>
00023 <span class="comment"> mak@dhi.dk</span>
00024 <span class="comment"> */</span>
00025 <span class="comment">//-----------------------------------------------------------------------------</span>
00026
00027 <span class="preprocessor">#ifndef eoSequential_h</span>
00028 <span class="preprocessor"></span><span class="preprocessor">#define eoSequential_h</span>
00029 <span class="preprocessor"></span>
00030 <span class="preprocessor">#include &lt;limits&gt;</span>
00031
00032 <span class="preprocessor">#include "utils/eoData.h"</span>
00033 <span class="preprocessor">#include "utils/eoRNG.h"</span>
00034 <span class="preprocessor">#include "eoSelectOne.h"</span>
00035
<a name="l00052"></a><a class="code" href="classeo_sequential_select.html">00052</a> <span class="keyword">template</span> &lt;<span class="keyword">class</span> EOT&gt; <span class="keyword">class </span><a class="code" href="classeo_sequential_select.html">eoSequentialSelect</a>: <span class="keyword">public</span> <a class="code" href="classeo_select_one.html">eoSelectOne</a>&lt;EOT&gt;
00053 {
00054 <span class="keyword">public</span>:
<a name="l00058"></a><a class="code" href="classeo_sequential_select.html#a0">00058</a> <a class="code" href="classeo_sequential_select.html#a0">eoSequentialSelect</a>(<span class="keywordtype">bool</span> _ordered = <span class="keyword">true</span>)
00059 : ordered(_ordered), current(std::numeric_limits&lt;unsigned&gt;::max()) {}
00060
<a name="l00061"></a><a class="code" href="classeo_sequential_select.html#a1">00061</a> <span class="keywordtype">void</span> <a class="code" href="classeo_sequential_select.html#a1">setup</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _pop)
00062 {
00063 eoPters.resize(_pop.size());
00064 <span class="keywordflow">if</span> (ordered) <span class="comment">// probably we could have a marker to avoid re-sorting</span>
00065 _pop.<a class="code" href="classeo_pop.html#a5">sort</a>(eoPters);
00066 <span class="keywordflow">else</span>
00067 _pop.<a class="code" href="classeo_pop.html#a7">shuffle</a>(eoPters);
00068 current=0;
00069 }
00070
<a name="l00071"></a><a class="code" href="classeo_sequential_select.html#a2">00071</a> <span class="keyword">virtual</span> <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a>&amp; <a class="code" href="classeo_sequential_select.html#a2">operator()</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _pop)
00072 {
00073 <span class="keywordflow">if</span> (current &gt;= _pop.size())
00074 <a class="code" href="classeo_sequential_select.html#a1">setup</a>(_pop);
00075
00076 <span class="keywordtype">unsigned</span> eoN = current;
00077 current++;
00078 <span class="keywordflow">return</span> *eoPters[eoN] ;
00079 }
00080 <span class="keyword">private</span>:
00081 <span class="keywordtype">bool</span> ordered;
00082 <span class="keywordtype">unsigned</span> current;
00083 std::vector&lt;const EOT*&gt; eoPters;
00084 };
00085
00086
00087
<a name="l00097"></a><a class="code" href="classeo_elite_sequential_select.html">00097</a> <span class="keyword">template</span> &lt;<span class="keyword">class</span> EOT&gt; <span class="keyword">class </span><a class="code" href="classeo_elite_sequential_select.html">eoEliteSequentialSelect</a>: <span class="keyword">public</span> <a class="code" href="classeo_select_one.html">eoSelectOne</a>&lt;EOT&gt;
00098 {
00099 <span class="keyword">public</span>:
00100
<a name="l00104"></a><a class="code" href="classeo_elite_sequential_select.html#a0">00104</a> <a class="code" href="classeo_elite_sequential_select.html#a0">eoEliteSequentialSelect</a>(): current(std::numeric_limits&lt;unsigned&gt;::max()) {}
00105
<a name="l00106"></a><a class="code" href="classeo_elite_sequential_select.html#a1">00106</a> <span class="keywordtype">void</span> <a class="code" href="classeo_elite_sequential_select.html#a1">setup</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _pop)
00107 {
00108 eoPters.resize(_pop.size());
00109 _pop.<a class="code" href="classeo_pop.html#a7">shuffle</a>(eoPters);
00110 <span class="comment">// now get the best</span>
00111 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ibest = 0;
00112 <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> * best = eoPters[0];
00113 <span class="keywordflow">if</span> (_pop.size() == 1)
00114 <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"Trying eoEliteSequentialSelect with only one individual!"</span>);
00115 <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i=1; i&lt;_pop.size(); i++)
00116 <span class="keywordflow">if</span> (*eoPters[i]&gt;*best)
00117 {
00118 ibest = i;
00119 best = eoPters[ibest];
00120 }
00121 <span class="comment">// and put it upfront</span>
00122 <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a> *ptmp = eoPters[0];
00123 eoPters[0]=best;
00124 eoPters[ibest] = ptmp;
00125 <span class="comment">// exit after setting current</span>
00126 current=0;
00127 }
00128
<a name="l00129"></a><a class="code" href="classeo_elite_sequential_select.html#a2">00129</a> <span class="keyword">virtual</span> <span class="keyword">const</span> <a class="code" href="struct_dummy.html">EOT</a>&amp; <a class="code" href="classeo_elite_sequential_select.html#a2">operator()</a>(<span class="keyword">const</span> <a class="code" href="classeo_pop.html">eoPop&lt;EOT&gt;</a>&amp; _pop)
00130 {
00131 <span class="keywordflow">if</span> (current &gt;= _pop.size())
00132 <a class="code" href="classeo_elite_sequential_select.html#a1">setup</a>(_pop);
00133
00134 <span class="keywordtype">unsigned</span> eoN = current;
00135 current++;
00136 <span class="keywordflow">return</span> *eoPters[eoN] ;
00137 }
00138 <span class="keyword">private</span>:
00139 <span class="keywordtype">unsigned</span> current;
00140 std::vector&lt;const EOT*&gt; eoPters;
00141 };
00142
00143
00144 <span class="preprocessor">#endif</span>
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