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<h1>dllist.h</h1> </div>
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<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * dllist.h</span>
<a name="l00003"></a>00003 <span class="comment"> *</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright 2007 Joey Durham <joey@engineering.ucsb.edu></span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This program is free software; you can redistribute it and/or modify</span>
<a name="l00007"></a>00007 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00008"></a>00008 <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span>
<a name="l00009"></a>00009 <span class="comment"> * (at your option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> * This program is distributed in the hope that it will be useful,</span>
<a name="l00012"></a>00012 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00013"></a>00013 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<a name="l00014"></a>00014 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * You should have received a copy of the GNU General Public License</span>
<a name="l00017"></a>00017 <span class="comment"> * along with this program; if not, write to the Free Software</span>
<a name="l00018"></a>00018 <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.</span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef DLLIST_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define DLLIST_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <iostream></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <assert.h></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE> <span class="keyword">class </span><a class="code" href="classDLList.html">DLList</a>;
<a name="l00029"></a>00029
<a name="l00030"></a>00030
<a name="l00031"></a>00031
<a name="l00032"></a><a class="code" href="classDLLNode.html">00032</a> <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE> <span class="keyword">class </span><a class="code" href="classDLLNode.html">DLLNode</a>
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classDLList.html">DLList</a><tVARTYPE>;
<a name="l00035"></a>00035
<a name="l00036"></a>00036 <span class="keyword">protected</span> :
<a name="l00037"></a>00037 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* m_pNext;
<a name="l00038"></a>00038 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* m_pPrev;
<a name="l00039"></a>00039
<a name="l00040"></a>00040 <span class="keyword">public</span> :
<a name="l00041"></a>00041 tVARTYPE m_data;
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <a class="code" href="classDLLNode.html">DLLNode</a>(<span class="keyword">const</span> tVARTYPE& val)
<a name="l00044"></a>00044 {
<a name="l00045"></a>00045 m_data = val;
<a name="l00046"></a>00046
<a name="l00047"></a>00047 m_pNext = NULL;
<a name="l00048"></a>00048 m_pPrev = NULL;
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050 <span class="keyword">virtual</span> ~<a class="code" href="classDLLNode.html">DLLNode</a>() {}
<a name="l00051"></a>00051
<a name="l00052"></a>00052 };
<a name="l00053"></a><a class="code" href="classDLList.html">00053</a> <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE> <span class="keyword">class </span><a class="code" href="classDLList.html">DLList</a>
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keyword">public</span>:
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <a class="code" href="classDLList.html">DLList</a>();
<a name="l00059"></a>00059 <span class="keyword">virtual</span> ~<a class="code" href="classDLList.html">DLList</a>();
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keywordtype">void</span> clear();
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">void</span> insertAtBeginning(<span class="keyword">const</span> tVARTYPE& val);
<a name="l00064"></a>00064 <span class="keywordtype">void</span> insertAtEnd(<span class="keyword">const</span> tVARTYPE& val);
<a name="l00065"></a>00065 <span class="keywordtype">void</span> insertBefore(<span class="keyword">const</span> tVARTYPE& val, <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pThisNode);
<a name="l00066"></a>00066 <span class="keywordtype">void</span> insertAfter(<span class="keyword">const</span> tVARTYPE& val, <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pThisNode);
<a name="l00067"></a>00067 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* deleteNode(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode);
<a name="l00068"></a>00068 <span class="keywordtype">void</span> moveToEnd(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pThisNode);
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* next(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode) <span class="keyword">const</span>;
<a name="l00071"></a>00071 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* prev(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode) <span class="keyword">const</span>;
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* nodeNum(<span class="keywordtype">int</span> iNum) <span class="keyword">const</span>;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keywordtype">int</span> getLength()<span class="keyword"> const</span>
<a name="l00076"></a>00076 <span class="keyword"> </span>{
<a name="l00077"></a>00077 <span class="keywordflow">return</span> m_iLength;
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* head()<span class="keyword"> const</span>
<a name="l00081"></a>00081 <span class="keyword"> </span>{
<a name="l00082"></a>00082 <span class="keywordflow">return</span> m_pHead;
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* tail()<span class="keyword"> const</span>
<a name="l00086"></a>00086 <span class="keyword"> </span>{
<a name="l00087"></a>00087 <span class="keywordflow">return</span> m_pTail;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keyword">protected</span>:
<a name="l00091"></a>00091 <span class="keywordtype">int</span> m_iLength;
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* m_pHead;
<a name="l00094"></a>00094 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* m_pTail;
<a name="l00095"></a>00095 };
<a name="l00096"></a>00096
<a name="l00097"></a>00097
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="comment">//constructor</span>
<a name="l00100"></a>00100 <span class="comment">//resets local vars</span>
<a name="l00101"></a>00101 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00102"></a>00102 <span class="keyword">inline</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::DLList</a>()
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 m_iLength = 0;
<a name="l00105"></a>00105
<a name="l00106"></a>00106 m_pHead = NULL;
<a name="l00107"></a>00107 m_pTail = NULL;
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="comment">//Destructor</span>
<a name="l00112"></a>00112 <span class="comment">//resets local vars</span>
<a name="l00113"></a>00113 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00114"></a>00114 <span class="keyword">inline</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::~DLList</a>()
<a name="l00115"></a>00115 {
<a name="l00116"></a>00116 clear();
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00121"></a>00121 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::clear</a>()
<a name="l00122"></a>00122 {
<a name="l00123"></a>00123 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pCurrNode;
<a name="l00124"></a>00124 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNextNode;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 pCurrNode = m_pHead;
<a name="l00127"></a>00127 <span class="keywordflow">while</span> (pCurrNode != NULL)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 pNextNode = pCurrNode->m_pNext;
<a name="l00130"></a>00130 <span class="keyword">delete</span> pCurrNode;
<a name="l00131"></a>00131 pCurrNode = pNextNode;
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 m_iLength = 0;
<a name="l00135"></a>00135
<a name="l00136"></a>00136 m_pHead = NULL;
<a name="l00137"></a>00137 m_pTail = NULL;
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139
<a name="l00140"></a>00140
<a name="l00141"></a>00141 <span class="comment">//inserts at the tail of the list</span>
<a name="l00142"></a>00142 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00143"></a>00143 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::insertAtBeginning</a>(<span class="keyword">const</span> tVARTYPE& val)
<a name="l00144"></a>00144 {
<a name="l00145"></a>00145 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode;
<a name="l00146"></a>00146
<a name="l00147"></a>00147 assert((m_pHead == NULL) || (m_iLength > 0));
<a name="l00148"></a>00148
<a name="l00149"></a>00149 pNode = <span class="keyword">new</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>(val);
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordflow">if</span> (m_pHead != NULL)
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 m_pHead->m_pPrev = pNode;
<a name="l00154"></a>00154 pNode->m_pNext = m_pHead;
<a name="l00155"></a>00155 m_pHead = pNode;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 <span class="keywordflow">else</span>
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 m_pHead = pNode;
<a name="l00160"></a>00160 m_pTail = pNode;
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162
<a name="l00163"></a>00163 m_iLength++;
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00166"></a>00166
<a name="l00167"></a>00167 <span class="comment">//inserts at the tail of the list</span>
<a name="l00168"></a>00168 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00169"></a>00169 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::insertAtEnd</a>(<span class="keyword">const</span> tVARTYPE& val)
<a name="l00170"></a>00170 {
<a name="l00171"></a>00171 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode;
<a name="l00172"></a>00172
<a name="l00173"></a>00173 assert((m_pHead == NULL) || (m_iLength > 0));
<a name="l00174"></a>00174
<a name="l00175"></a>00175 pNode = <span class="keyword">new</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>(val);
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keywordflow">if</span> (m_pTail != NULL)
<a name="l00178"></a>00178 {
<a name="l00179"></a>00179 m_pTail->m_pNext = pNode;
<a name="l00180"></a>00180 pNode->m_pPrev = m_pTail;
<a name="l00181"></a>00181 m_pTail = pNode;
<a name="l00182"></a>00182 }
<a name="l00183"></a>00183 <span class="keywordflow">else</span>
<a name="l00184"></a>00184 {
<a name="l00185"></a>00185 m_pHead = pNode;
<a name="l00186"></a>00186 m_pTail = pNode;
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189 m_iLength++;
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <span class="comment">//inserts before the specified node</span>
<a name="l00194"></a>00194 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00195"></a>00195 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::insertBefore</a>(<span class="keyword">const</span> tVARTYPE& val, <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pThisNode)
<a name="l00196"></a>00196 {
<a name="l00197"></a>00197 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 assert((m_pHead == NULL) || (m_iLength > 0));
<a name="l00200"></a>00200
<a name="l00201"></a>00201 <span class="keywordflow">if</span> ((pThisNode == NULL) || (pThisNode->m_pPrev == NULL))
<a name="l00202"></a>00202 {
<a name="l00203"></a>00203 insertAtBeginning(val);
<a name="l00204"></a>00204 <span class="keywordflow">return</span>;
<a name="l00205"></a>00205 }
<a name="l00206"></a>00206
<a name="l00207"></a>00207 pNode = <span class="keyword">new</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>(val);
<a name="l00208"></a>00208
<a name="l00209"></a>00209 pThisNode->m_pPrev->m_pNext = pNode;
<a name="l00210"></a>00210 pNode->m_pPrev = pThisNode->m_pPrev;
<a name="l00211"></a>00211 pThisNode->m_pPrev = pNode;
<a name="l00212"></a>00212 pNode->m_pNext = pThisNode;
<a name="l00213"></a>00213
<a name="l00214"></a>00214 m_iLength++;
<a name="l00215"></a>00215 }
<a name="l00216"></a>00216
<a name="l00217"></a>00217
<a name="l00218"></a>00218 <span class="comment">//inserts after the specified node</span>
<a name="l00219"></a>00219 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00220"></a>00220 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::insertAfter</a>(<span class="keyword">const</span> tVARTYPE& val, <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pThisNode)
<a name="l00221"></a>00221 {
<a name="l00222"></a>00222 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode;
<a name="l00223"></a>00223
<a name="l00224"></a>00224 assert((m_pHead == NULL) || (m_iLength > 0));
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="keywordflow">if</span> ((pThisNode == NULL) || (pThisNode->m_pNext == NULL))
<a name="l00227"></a>00227 {
<a name="l00228"></a>00228 insertAtEnd(val);
<a name="l00229"></a>00229 <span class="keywordflow">return</span>;
<a name="l00230"></a>00230 }
<a name="l00231"></a>00231
<a name="l00232"></a>00232 pNode = <span class="keyword">new</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>(val);
<a name="l00233"></a>00233
<a name="l00234"></a>00234 pThisNode->m_pNext->m_pPrev = pNode;
<a name="l00235"></a>00235 pNode->m_pNext = pThisNode->m_pNext;
<a name="l00236"></a>00236 pThisNode->m_pNext = pNode;
<a name="l00237"></a>00237 pNode->m_pPrev = pThisNode;
<a name="l00238"></a>00238
<a name="l00239"></a>00239 m_iLength++;
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241
<a name="l00242"></a>00242
<a name="l00243"></a>00243 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00244"></a>00244 <span class="keyword">inline</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* <a class="code" href="classDLList.html">DLList<tVARTYPE>::deleteNode</a>(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pPrevNode;
<a name="l00247"></a>00247 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNextNode;
<a name="l00248"></a>00248
<a name="l00249"></a>00249 assert(pNode != NULL);
<a name="l00250"></a>00250
<a name="l00251"></a>00251 pPrevNode = pNode->m_pPrev;
<a name="l00252"></a>00252 pNextNode = pNode->m_pNext;
<a name="l00253"></a>00253
<a name="l00254"></a>00254 <span class="keywordflow">if</span> ((pPrevNode != NULL) && (pNextNode != NULL))
<a name="l00255"></a>00255 {
<a name="l00256"></a>00256 pPrevNode->m_pNext = pNextNode;
<a name="l00257"></a>00257 pNextNode->m_pPrev = pPrevNode;
<a name="l00258"></a>00258 }
<a name="l00259"></a>00259 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pPrevNode != NULL)
<a name="l00260"></a>00260 {
<a name="l00261"></a>00261 pPrevNode->m_pNext = NULL;
<a name="l00262"></a>00262 m_pTail = pPrevNode;
<a name="l00263"></a>00263 }
<a name="l00264"></a>00264 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pNextNode != NULL)
<a name="l00265"></a>00265 {
<a name="l00266"></a>00266 pNextNode->m_pPrev = NULL;
<a name="l00267"></a>00267 m_pHead = pNextNode;
<a name="l00268"></a>00268 }
<a name="l00269"></a>00269 <span class="keywordflow">else</span>
<a name="l00270"></a>00270 {
<a name="l00271"></a>00271 m_pHead = NULL;
<a name="l00272"></a>00272 m_pTail = NULL;
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274
<a name="l00275"></a>00275 <span class="keyword">delete</span> pNode;
<a name="l00276"></a>00276
<a name="l00277"></a>00277 m_iLength--;
<a name="l00278"></a>00278
<a name="l00279"></a>00279 <span class="keywordflow">return</span> pNextNode;
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00284"></a>00284 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classDLList.html">DLList<tVARTYPE>::moveToEnd</a>(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode)
<a name="l00285"></a>00285 {
<a name="l00286"></a>00286 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pPrevNode;
<a name="l00287"></a>00287 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNextNode;
<a name="l00288"></a>00288
<a name="l00289"></a>00289 assert(pNode != NULL);
<a name="l00290"></a>00290
<a name="l00291"></a>00291 <span class="keywordflow">if</span> (getLength() == 1)
<a name="l00292"></a>00292 {
<a name="l00293"></a>00293 <span class="keywordflow">return</span>;
<a name="l00294"></a>00294 }
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="keywordflow">if</span> (pNode == m_pTail)
<a name="l00297"></a>00297 {
<a name="l00298"></a>00298 <span class="keywordflow">return</span>;
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300
<a name="l00301"></a>00301 pPrevNode = pNode->m_pPrev;
<a name="l00302"></a>00302 pNextNode = pNode->m_pNext;
<a name="l00303"></a>00303
<a name="l00304"></a>00304 <span class="keywordflow">if</span> ((pPrevNode != NULL) && (pNextNode != NULL))
<a name="l00305"></a>00305 {
<a name="l00306"></a>00306 pPrevNode->m_pNext = pNextNode;
<a name="l00307"></a>00307 pNextNode->m_pPrev = pPrevNode;
<a name="l00308"></a>00308 }
<a name="l00309"></a>00309 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pPrevNode != NULL)
<a name="l00310"></a>00310 {
<a name="l00311"></a>00311 pPrevNode->m_pNext = NULL;
<a name="l00312"></a>00312 m_pTail = pPrevNode;
<a name="l00313"></a>00313 }
<a name="l00314"></a>00314 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pNextNode != NULL)
<a name="l00315"></a>00315 {
<a name="l00316"></a>00316 pNextNode->m_pPrev = NULL;
<a name="l00317"></a>00317 m_pHead = pNextNode;
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319 <span class="keywordflow">else</span>
<a name="l00320"></a>00320 {
<a name="l00321"></a>00321 m_pHead = NULL;
<a name="l00322"></a>00322 m_pTail = NULL;
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324
<a name="l00325"></a>00325 pNode->m_pNext = NULL;
<a name="l00326"></a>00326 m_pTail->m_pNext = pNode;
<a name="l00327"></a>00327 pNode->m_pPrev = m_pTail;
<a name="l00328"></a>00328 m_pTail = pNode;
<a name="l00329"></a>00329 }
<a name="l00330"></a>00330
<a name="l00331"></a>00331
<a name="l00332"></a>00332 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00333"></a>00333 <span class="keyword">inline</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* <a class="code" href="classDLList.html">DLList<tVARTYPE>::next</a>(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode)<span class="keyword"> const</span>
<a name="l00334"></a>00334 <span class="keyword"></span>{
<a name="l00335"></a>00335 assert(pNode != NULL);
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <span class="keywordflow">return</span> pNode->m_pNext;
<a name="l00338"></a>00338 }
<a name="l00339"></a>00339
<a name="l00340"></a>00340
<a name="l00341"></a>00341 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00342"></a>00342 <span class="keyword">inline</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* <a class="code" href="classDLList.html">DLList<tVARTYPE>::prev</a>(<a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode)<span class="keyword"> const</span>
<a name="l00343"></a>00343 <span class="keyword"></span>{
<a name="l00344"></a>00344 assert(pNode != NULL);
<a name="l00345"></a>00345
<a name="l00346"></a>00346 <span class="keywordflow">return</span> pNode->m_pPrev;
<a name="l00347"></a>00347 }
<a name="l00348"></a>00348
<a name="l00349"></a>00349
<a name="l00350"></a>00350 <span class="keyword">template</span> <<span class="keyword">class</span> tVARTYPE>
<a name="l00351"></a>00351 <span class="keyword">inline</span> <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* <a class="code" href="classDLList.html">DLList<tVARTYPE>::nodeNum</a>(<span class="keywordtype">int</span> iNum)<span class="keyword"> const</span>
<a name="l00352"></a>00352 <span class="keyword"></span>{
<a name="l00353"></a>00353 <a class="code" href="classDLLNode.html">DLLNode<tVARTYPE></a>* pNode;
<a name="l00354"></a>00354 <span class="keywordtype">int</span> iCount;
<a name="l00355"></a>00355
<a name="l00356"></a>00356 iCount = 0;
<a name="l00357"></a>00357 pNode = m_pHead;
<a name="l00358"></a>00358
<a name="l00359"></a>00359 <span class="keywordflow">while</span> (pNode != NULL)
<a name="l00360"></a>00360 {
<a name="l00361"></a>00361 <span class="keywordflow">if</span> (iCount == iNum)
<a name="l00362"></a>00362 {
<a name="l00363"></a>00363 <span class="keywordflow">return</span> pNode;
<a name="l00364"></a>00364 }
<a name="l00365"></a>00365
<a name="l00366"></a>00366 iCount++;
<a name="l00367"></a>00367 pNode = pNode->m_pNext;
<a name="l00368"></a>00368 }
<a name="l00369"></a>00369
<a name="l00370"></a>00370 <span class="keywordflow">return</span> NULL;
<a name="l00371"></a>00371 }
<a name="l00372"></a>00372
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <span class="preprocessor">#endif //LINKEDLIST_H</span>
</pre></div></div>
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