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<hr><h1>ordering_table.h</h1><a href="ordering__table_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#ifndef NL_ORDERING_TABLE_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_ORDERING_TABLE_H</font>
00028 <font class="preprocessor"></font>
00029 <font class="preprocessor">#include "<a class="code" href="types__nl_8h.html">nel/misc/types_nl.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="debug_8h.html">nel/misc/debug.h</a>"</font>
00031 <font class="preprocessor">#include &lt;vector&gt;</font>
00032 
00033 <font class="keyword">namespace </font>NL3D 
00034 {
00035 
00036 <font class="comment">// ***************************************************************************</font>
<a name="l00043"></a><a class="code" href="classNL3D_1_1COrderingTable.html">00043</a> <font class="comment"></font><font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <font class="keyword">class </font>COrderingTable
00044 {
00045 
00046 <font class="keyword">public</font>:
00047 
00048         <a class="code" href="classNL3D_1_1COrderingTable.html#a0">COrderingTable</a>();
00049         <a class="code" href="classNL3D_1_1COrderingTable.html#a1">~COrderingTable</a>();
00050 
00055         <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1COrderingTable.html#a2">init</a>( <a class="code" href="types__nl_8h.html#a10">uint32</a> nNbEntries );
00056 
00060         <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="classNL3D_1_1COrderingTable.html#a3">getSize</a>();
00061 
00066         <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1COrderingTable.html#a4">reset</a>(<a class="code" href="types__nl_8h.html#a14">uint</a> maxElementToInsert);
00067 
00074         <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1COrderingTable.html#a5">insert</a>( <a class="code" href="types__nl_8h.html#a10">uint32</a> nEntryPos, T *pValue );
00075 
00088         <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1COrderingTable.html#a6">begin</a>();
00089 
00093         T* <a class="code" href="classNL3D_1_1COrderingTable.html#a7">get</a>();
00094 
00098         <font class="keywordtype">void</font> <a class="code" href="classNL3D_1_1COrderingTable.html#a8">next</a>();
00099 
00100 <font class="comment">// =================</font>
00101 <font class="comment">// =================</font>
00102 <font class="comment">// IMPLEMENTATION.</font>
00103 <font class="comment">// =================</font>
00104 <font class="comment">// =================</font>
00105 <font class="keyword">private</font>:
00106 
<a name="l00107"></a><a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html">00107</a>         <font class="keyword">struct </font>CNode
00108         {
<a name="l00109"></a><a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">00109</a>                 T *<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">val</a>;
<a name="l00110"></a><a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m1">00110</a>                 <a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#a0">CNode</a> *<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m1">next</a>;
00111 
<a name="l00112"></a><a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#a0">00112</a>                 <a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#a0">CNode</a>()
00113                 { 
00114                         <a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">val</a> = NULL;
00115                         next = NULL;
00116                 }
00117         };
00118 
00119         <font class="comment">// a raw allocator of node.</font>
<a name="l00120"></a><a class="code" href="classNL3D_1_1COrderingTable.html#o0">00120</a>         std::vector&lt;CNode&gt;      <a class="code" href="classNL3D_1_1COrderingTable.html#o0">_Allocator</a>;
<a name="l00121"></a><a class="code" href="classNL3D_1_1COrderingTable.html#o1">00121</a>         CNode                           *<a class="code" href="classNL3D_1_1COrderingTable.html#o1">_CurAllocatedNode</a>;
00122 
<a name="l00123"></a><a class="code" href="classNL3D_1_1COrderingTable.html#o2">00123</a>         <a class="code" href="types__nl_8h.html#a10">uint32</a> <a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a>;
<a name="l00124"></a><a class="code" href="classNL3D_1_1COrderingTable.html#o3">00124</a>         CNode* <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>;
<a name="l00125"></a><a class="code" href="classNL3D_1_1COrderingTable.html#o4">00125</a>         CNode* <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>;
00126 
00127 };
00128 
00129 <font class="comment">// ***************************************************************************</font>
<a name="l00130"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a0">00130</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; COrderingTable&lt;T&gt;::COrderingTable()
00131 {
00132         <a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a> = 0;
00133         <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a> = NULL;
00134         <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> = NULL;
00135         <a class="code" href="classNL3D_1_1COrderingTable.html#o1">_CurAllocatedNode</a>= NULL;
00136 }
00137 
00138 <font class="comment">// ***************************************************************************</font>
<a name="l00139"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a1">00139</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; COrderingTable&lt;T&gt;::~COrderingTable()
00140 {
00141         <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a> != NULL )
00142                 <font class="keyword">delete</font> [] <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>;
00143 }
00144 
00145 <font class="comment">// ***************************************************************************</font>
<a name="l00146"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a2">00146</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <font class="keywordtype">void</font> COrderingTable&lt;T&gt;::init( <a class="code" href="types__nl_8h.html#a10">uint32</a> nNbEntries )
00147 {
00148         <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a> != NULL )
00149         {
00150                 <a class="code" href="classNL3D_1_1COrderingTable.html#a4">reset</a>(0);
00151                 <font class="keyword">delete</font> [] <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>;
00152         }
00153         <a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a> = nNbEntries;
00154         <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a> = <font class="keyword">new</font> CNode[<a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a>];
00155         <a class="code" href="classNL3D_1_1COrderingTable.html#a4">reset</a>(0);
00156 }
00157 
00158 <font class="comment">// ***************************************************************************</font>
<a name="l00159"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a3">00159</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <a class="code" href="types__nl_8h.html#a10">uint32</a> COrderingTable&lt;T&gt;::getSize()
00160 {
00161         <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a>;
00162 }
00163 
00164 <font class="comment">// ***************************************************************************</font>
<a name="l00165"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a4">00165</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <font class="keywordtype">void</font> COrderingTable&lt;T&gt;::reset(<a class="code" href="types__nl_8h.html#a14">uint</a> maxElementToInsert)
00166 {
00167         <font class="comment">// reset allocation</font>
00168         maxElementToInsert= max(1U, maxElementToInsert);
00169         <a class="code" href="classNL3D_1_1COrderingTable.html#o0">_Allocator</a>.resize(maxElementToInsert);
00170         <a class="code" href="classNL3D_1_1COrderingTable.html#o1">_CurAllocatedNode</a>= &amp;<a class="code" href="classNL3D_1_1COrderingTable.html#o0">_Allocator</a>[0];
00171 
00172         <font class="comment">// reset OT.</font>
00173         <font class="keywordflow">for</font>( <a class="code" href="types__nl_8h.html#a10">uint32</a> i = 0; i &lt; <a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a>-1; ++i )
00174         {
00175                 <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[i].<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">val</a> = NULL;
00176                 <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[i].<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m1">next</a> = &amp;<a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[i+1];
00177         }
00178         <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[<a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a>-1].val  = NULL;
00179         <a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[<a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a>-1].next = NULL;
00180 }
00181 
00182 <font class="comment">// ***************************************************************************</font>
<a name="l00183"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a5">00183</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <font class="keywordtype">void</font> COrderingTable&lt;T&gt;::insert( <a class="code" href="types__nl_8h.html#a10">uint32</a> nEntryPos, T *pValue )
00184 {
00185 <font class="preprocessor">#ifdef NL_DEBUG</font>
00186 <font class="preprocessor"></font>        <font class="comment">// check not so many calls to insert()</font>
00187         <a class="code" href="debug_8h.html#a6">nlassert</a>( !<a class="code" href="classNL3D_1_1COrderingTable.html#o0">_Allocator</a>.empty() &amp;&amp; <a class="code" href="classNL3D_1_1COrderingTable.html#o1">_CurAllocatedNode</a> &lt; (&amp;<a class="code" href="classNL3D_1_1COrderingTable.html#o0">_Allocator</a>[0])+<a class="code" href="classNL3D_1_1COrderingTable.html#o0">_Allocator</a>.size() );
00188         <font class="comment">// check good entry size</font>
00189         <a class="code" href="debug_8h.html#a6">nlassert</a>( nEntryPos &lt; <a class="code" href="classNL3D_1_1COrderingTable.html#o2">_nNbElt</a> );
00190 <font class="preprocessor">#endif</font>
00191 <font class="preprocessor"></font>        <font class="comment">// get the head list node</font>
00192         CNode *headNode = &amp;<a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[nEntryPos];
00193         <font class="comment">// alocate a new node</font>
00194         CNode *nextNode = <a class="code" href="classNL3D_1_1COrderingTable.html#o1">_CurAllocatedNode</a>++;
00195         <font class="comment">// fill this new node with data of head node</font>
00196         nextNode-&gt;val= headNode-&gt;val;
00197         nextNode-&gt;next= headNode-&gt;next;
00198         <font class="comment">// and replace head node with new data: consequence is pValue is insert in front of the list</font>
00199         headNode-&gt;val= pValue;
00200         headNode-&gt;next= nextNode;
00201         <font class="comment">// NB: prec of headNode is still correclty linked to headNode.</font>
00202 }
00203 
00204 <font class="comment">// ***************************************************************************</font>
<a name="l00205"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a6">00205</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <font class="keywordtype">void</font> COrderingTable&lt;T&gt;::begin()
00206 {
00207         <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> = &amp;<a class="code" href="classNL3D_1_1COrderingTable.html#o3">_Array</a>[0];
00208         <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>-&gt;<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">val</a> == NULL )
00209                 <a class="code" href="classNL3D_1_1COrderingTable.html#a8">next</a>();
00210 }
00211 
00212 <font class="comment">// ***************************************************************************</font>
<a name="l00213"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a7">00213</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; T* COrderingTable&lt;T&gt;::get()
00214 {
00215         <font class="keywordflow">if</font>( <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> != NULL )
00216                 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>-&gt;<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">val</a>;
00217         <font class="keywordflow">else</font>
00218                 <font class="keywordflow">return</font> NULL;
00219 }
00220 
00221 <font class="comment">// ***************************************************************************</font>
<a name="l00222"></a><a class="code" href="classNL3D_1_1COrderingTable.html#a8">00222</a> <font class="keyword">template</font>&lt;<font class="keyword">class</font> T&gt; <font class="keywordtype">void</font> COrderingTable&lt;T&gt;::next()
00223 {
00224         <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> = <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>-&gt;<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m1">next</a>;
00225         <font class="keywordflow">while</font>( ( <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> != NULL )&amp;&amp;( <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>-&gt;<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m0">val</a> == NULL ) )
00226                 <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> = <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>-&gt;<a class="code" href="structNL3D_1_1COrderingTable_1_1CNode.html#m1">next</a>;
00227 }
00228 
00229 } <font class="comment">// NL3D</font>
00230 
00231 
00232 <font class="preprocessor">#endif // NL_ORDERING_TABLE_H</font>
00233 <font class="preprocessor"></font>
00234 <font class="comment">/* End of ordering_table.h */</font>
</pre></div>

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