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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 <vector></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><<font class="keyword">class</font> T> <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<CNode> <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><<font class="keyword">class</font> T> COrderingTable<T>::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><<font class="keyword">class</font> T> COrderingTable<T>::~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><<font class="keyword">class</font> T> <font class="keywordtype">void</font> COrderingTable<T>::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><<font class="keyword">class</font> T> <a class="code" href="types__nl_8h.html#a10">uint32</a> COrderingTable<T>::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><<font class="keyword">class</font> T> <font class="keywordtype">void</font> COrderingTable<T>::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>= &<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 < <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> = &<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><<font class="keyword">class</font> T> <font class="keywordtype">void</font> COrderingTable<T>::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() && <a class="code" href="classNL3D_1_1COrderingTable.html#o1">_CurAllocatedNode</a> < (&<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 < <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 = &<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->val= headNode->val;
00197 nextNode->next= headNode->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->val= pValue;
00200 headNode->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><<font class="keyword">class</font> T> <font class="keywordtype">void</font> COrderingTable<T>::begin()
00206 {
00207 <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a> = &<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>-><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><<font class="keyword">class</font> T> T* COrderingTable<T>::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>-><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><<font class="keyword">class</font> T> <font class="keywordtype">void</font> COrderingTable<T>::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>-><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 )&&( <a class="code" href="classNL3D_1_1COrderingTable.html#o4">_SelNode</a>-><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>-><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>
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