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polybori-doc-0.5rc.p9-6mdv2010.0.i586.rpm

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<h1>CTermStack.h</h1><a href="CTermStack_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="l00099"></a>00099 <span class="comment"></span><span class="comment">//*****************************************************************************</span>
<a name="l00100"></a>00100 
<a name="l00101"></a>00101 <span class="comment">// get standard header</span>
<a name="l00102"></a>00102 <span class="preprocessor">#include &lt;stack&gt;</span>
<a name="l00103"></a>00103 <span class="preprocessor">#include &lt;iterator&gt;</span>
<a name="l00104"></a>00104 <span class="preprocessor">#include &lt;utility&gt;</span> <span class="comment">// for std::pair</span>
<a name="l00105"></a>00105 
<a name="l00106"></a>00106 <span class="comment">// include basic definitions</span>
<a name="l00107"></a>00107 <span class="preprocessor">#include "<a class="code" href="pbori__defs_8h.html">pbori_defs.h</a>"</span>
<a name="l00108"></a>00108 
<a name="l00109"></a>00109 <span class="comment">// include polybori functionals</span>
<a name="l00110"></a>00110 <span class="preprocessor">#include "<a class="code" href="pbori__func_8h.html">pbori_func.h</a>"</span>
<a name="l00111"></a>00111 
<a name="l00112"></a>00112 <span class="comment">// include polybori properties</span>
<a name="l00113"></a>00113 <span class="preprocessor">#include "<a class="code" href="pbori__traits_8h.html">pbori_traits.h</a>"</span>
<a name="l00114"></a>00114 
<a name="l00115"></a>00115 <span class="preprocessor">#include "<a class="code" href="pbori__routines_8h.html">pbori_routines.h</a>"</span>
<a name="l00116"></a>00116 
<a name="l00117"></a>00117 <span class="comment">// include boost's indirect iterator facilities</span>
<a name="l00118"></a>00118 <span class="preprocessor">#include &lt;boost/iterator/indirect_iterator.hpp&gt;</span>
<a name="l00119"></a>00119 
<a name="l00120"></a>00120 <span class="preprocessor">#include "<a class="code" href="BooleEnv_8h.html">BooleEnv.h</a>"</span>
<a name="l00121"></a>00121 <span class="preprocessor">#include "<a class="code" href="CDegreeCache_8h.html">CDegreeCache.h</a>"</span>
<a name="l00122"></a>00122 <span class="preprocessor">#include "<a class="code" href="CBidirectTermIter_8h.html">CBidirectTermIter.h</a>"</span>
<a name="l00123"></a>00123 
<a name="l00124"></a>00124 
<a name="l00125"></a>00125 
<a name="l00126"></a>00126 <span class="preprocessor">#ifndef CTermStack_h_</span>
<a name="l00127"></a>00127 <span class="preprocessor"></span><span class="preprocessor">#define CTermStack_h_</span>
<a name="l00128"></a>00128 <span class="preprocessor"></span>
<a name="l00129"></a>00129 <a class="code" href="pbori__defs_8h.html#6ae360a591580558f31b6157ee792a10" title="Start project&amp;#39;s namespace.">BEGIN_NAMESPACE_PBORI</a>
<a name="l00130"></a>00130 
<a name="l00132"></a>00132 <span class="keyword">template</span>&lt;<span class="keyword">class</span> NavigatorType&gt;
<a name="l00133"></a><a class="code" href="structpolybori_1_1cached__deg.html">00133</a> <span class="keyword">struct </span><a class="code" href="structpolybori_1_1cached__deg.html">cached_deg</a> {
<a name="l00134"></a><a class="code" href="structpolybori_1_1cached__deg.html#e1f566d8ed7e6c2169375ddf8296bea1">00134</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CDegreeCache.html">CDegreeCache&lt;&gt;</a> <a class="code" href="classpolybori_1_1CDegreeCache.html">cache_type</a>;
<a name="l00135"></a><a class="code" href="structpolybori_1_1cached__deg.html#b7046b392043e760a68dba7b722cbbe0">00135</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classpolybori_1_1CCuddInterface.html" title="This class defines a C++ interface to CUDD&amp;#39;s decicion diagram manager.">cache_type::manager_type</a> <a class="code" href="classpolybori_1_1CCuddInterface.html" title="This class defines a C++ interface to CUDD&amp;#39;s decicion diagram manager.">manager_type</a>;
<a name="l00136"></a><a class="code" href="structpolybori_1_1cached__deg.html#0f4e58eaac9994c1580aa9fc8ac4d3ca">00136</a>   <a class="code" href="structpolybori_1_1cached__deg.html#0f4e58eaac9994c1580aa9fc8ac4d3ca">cached_deg</a>(<span class="keyword">const</span> <a class="code" href="classpolybori_1_1CCuddInterface.html" title="This class defines a C++ interface to CUDD&amp;#39;s decicion diagram manager.">manager_type</a> &amp; mgr): m_deg_cache(mgr) {}
<a name="l00137"></a>00137 
<a name="l00138"></a>00138   <span class="keyword">typename</span> NavigatorType::size_type
<a name="l00139"></a><a class="code" href="structpolybori_1_1cached__deg.html#def55c87f707a08cd94b45aa0a813790">00139</a>   <a class="code" href="structpolybori_1_1cached__deg.html#def55c87f707a08cd94b45aa0a813790">operator()</a>(NavigatorType navi)<span class="keyword"> const </span>{
<a name="l00140"></a>00140     <span class="keywordflow">return</span> <a class="code" href="namespacepolybori.html#11073584b523f82b3febaac201b86365">dd_cached_degree</a>(m_deg_cache, navi);
<a name="l00141"></a>00141   }
<a name="l00142"></a><a class="code" href="structpolybori_1_1cached__deg.html#63f2fb83be3ef190ad0a4bea65b6eaf6">00142</a>   <a class="code" href="classpolybori_1_1CDegreeCache.html">cache_type</a> m_deg_cache;
<a name="l00143"></a>00143 };
<a name="l00144"></a>00144 
<a name="l00146"></a>00146 
<a name="l00147"></a>00147 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType&gt;
<a name="l00148"></a><a class="code" href="classpolybori_1_1cached__block__deg.html">00148</a> <span class="keyword">class </span><a class="code" href="classpolybori_1_1cached__block__deg.html">cached_block_deg</a> {
<a name="l00149"></a>00149 <span class="keyword">public</span>:
<a name="l00150"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#5e062177f354a020e2a2b4173b1b1823">00150</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">NavigatorType::idx_type</a> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a>;
<a name="l00151"></a>00151 
<a name="l00152"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#e3739246aea303c3f7b0e9267a4349ca">00152</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1cached__block__deg.html">cached_block_deg&lt;NavigatorType&gt;</a> <span class="keyword">self</span>;
<a name="l00153"></a>00153 
<a name="l00155"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#0e0eda43cb04806486542a1af23904a9">00155</a>   <span class="keyword">typedef</span> std::vector&lt;idx_type&gt; block_idx_type;
<a name="l00156"></a>00156 
<a name="l00158"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#7b239b4c8ea314f97fa3d88803a26ed3">00158</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> block_idx_type::const_iterator block_iterator;
<a name="l00159"></a>00159   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CBlockDegreeCache.html">CBlockDegreeCache&lt;CCacheTypes::block_degree, CTypes::dd_type&gt;</a>
<a name="l00160"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#f45016737de3dffcc9e3288f0a7a3ea9">00160</a>   <a class="code" href="classpolybori_1_1CBlockDegreeCache.html">cache_type</a>;
<a name="l00161"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#c3c7c0ed9c8b5d9f6d2ef16fa25a078a">00161</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classpolybori_1_1CCuddInterface.html" title="This class defines a C++ interface to CUDD&amp;#39;s decicion diagram manager.">cache_type::manager_type</a> <a class="code" href="classpolybori_1_1CCuddInterface.html" title="This class defines a C++ interface to CUDD&amp;#39;s decicion diagram manager.">manager_type</a>;
<a name="l00162"></a>00162 
<a name="l00163"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#a153adf33bc74e4b290f4944baa7a096">00163</a>   <a class="code" href="classpolybori_1_1cached__block__deg.html">cached_block_deg</a>(<span class="keyword">const</span> <a class="code" href="classpolybori_1_1CCuddInterface.html" title="This class defines a C++ interface to CUDD&amp;#39;s decicion diagram manager.">manager_type</a>&amp; mgr):
<a name="l00164"></a>00164     <span class="comment">//  m_indices(BoolePolyRing::blockRingBegin()), </span>
<a name="l00165"></a>00165     m_current_block(<a class="code" href="classpolybori_1_1BooleEnv.html" title="This class is just a wrapper accessing global structures.">BooleEnv</a>::blockBegin()),
<a name="l00166"></a>00166     m_deg_cache(mgr) { }
<a name="l00167"></a>00167 
<a name="l00168"></a>00168   <span class="keyword">typename</span> NavigatorType::size_type
<a name="l00169"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#9ea859a0271ce5c5467fc1cfc21d781d">00169</a>   <a class="code" href="classpolybori_1_1cached__block__deg.html#9ea859a0271ce5c5467fc1cfc21d781d">operator()</a>(NavigatorType navi)<span class="keyword"> const </span>{
<a name="l00170"></a>00170     <span class="keywordflow">return</span> <a class="code" href="namespacepolybori.html#3584bc11f3fe3a429096290a64d3a5fc">dd_cached_block_degree</a>(m_deg_cache, navi, max());
<a name="l00171"></a>00171   }
<a name="l00172"></a>00172 
<a name="l00173"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#7ea58a7c799f2ccba0fd06df4d4aadac">00173</a>   <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a> <a class="code" href="classpolybori_1_1cached__block__deg.html#7ea58a7c799f2ccba0fd06df4d4aadac">min</a>()<span class="keyword"> const </span>{
<a name="l00174"></a>00174     assert(*m_current_block != 0); <span class="comment">// assuming first element to be zero</span>
<a name="l00175"></a>00175     <span class="keywordflow">return</span> *(m_current_block - 1);
<a name="l00176"></a>00176   }
<a name="l00177"></a>00177 
<a name="l00178"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#32452b70cd75f0526538378c0a43cc7d">00178</a>   <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a> <a class="code" href="classpolybori_1_1cached__block__deg.html#32452b70cd75f0526538378c0a43cc7d">max</a>()<span class="keyword"> const </span>{
<a name="l00179"></a>00179     <span class="keywordflow">return</span> *m_current_block;
<a name="l00180"></a>00180   }
<a name="l00181"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#0973e937ea6ae090ba27c8b6b1580eb5">00181</a>   <span class="keyword">self</span>&amp; <a class="code" href="classpolybori_1_1cached__block__deg.html#0973e937ea6ae090ba27c8b6b1580eb5">operator++</a>(){
<a name="l00182"></a>00182     assert(max() != CTypes::max_idx);
<a name="l00183"></a>00183     ++m_current_block;
<a name="l00184"></a>00184     <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00185"></a>00185   }
<a name="l00186"></a>00186 
<a name="l00187"></a><a class="code" href="classpolybori_1_1cached__block__deg.html#0de01744ca5e75911f7a18c9b4cf2c33">00187</a>   <span class="keyword">self</span>&amp; <a class="code" href="classpolybori_1_1cached__block__deg.html#0de01744ca5e75911f7a18c9b4cf2c33">operator--</a>(){
<a name="l00188"></a>00188     assert(min() != 0);
<a name="l00189"></a>00189     --m_current_block;
<a name="l00190"></a>00190     <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00191"></a>00191   }
<a name="l00192"></a>00192 
<a name="l00193"></a>00193 <span class="keyword">private</span>:
<a name="l00194"></a>00194   <span class="comment">//  block_iterator m_indices;</span>
<a name="l00195"></a>00195   block_iterator m_current_block;
<a name="l00196"></a>00196 
<a name="l00197"></a>00197   cache_type m_deg_cache;
<a name="l00198"></a>00198 };
<a name="l00199"></a>00199 
<a name="l00200"></a>00200 
<a name="l00201"></a>00201 
<a name="l00202"></a>00202 
<a name="l00210"></a>00210 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> BaseType = <span class="keywordtype">int</span>ernal_tag&gt;
<a name="l00211"></a><a class="code" href="classpolybori_1_1CTermStackBase.html">00211</a> <span class="keyword">class </span><a class="code" href="classpolybori_1_1CTermStackBase.html">CTermStackBase</a>:
<a name="l00212"></a>00212   <span class="keyword">public</span> <a class="code" href="classBaseType.html">BaseType</a> {
<a name="l00213"></a>00213 
<a name="l00214"></a>00214 <span class="keyword">public</span>:
<a name="l00215"></a>00215 
<a name="l00216"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#d64da0477e9bbafdef955746631fa5db">00216</a>   <span class="keyword">template</span> &lt;<span class="keyword">class</span>, <span class="keyword">class</span>&gt; <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classpolybori_1_1CTermStackBase.html">CTermStackBase</a>;
<a name="l00217"></a>00217 
<a name="l00218"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#91e72f5c1a0b169aefdec9c7c1957db4">00218</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CTermStackBase.html">CTermStackBase&lt;NavigatorType, BaseType&gt;</a> <span class="keyword">self</span>;
<a name="l00219"></a>00219 
<a name="l00221"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#5a99f4669cc0d327b87d084b21aa28ea">00221</a>   <span class="keyword">typedef</span> NavigatorType navigator;
<a name="l00223"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#e27e30ce28d3d0a789350e6a2e470dda">00223</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">navigator::idx_type</a> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a>;
<a name="l00224"></a>00224 
<a name="l00226"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#84afdb81a3c53bf90ae0f0c65ea1b09e">00226</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> navigator::size_type size_type;
<a name="l00227"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#5f27f2879471fe88b57cd7146e9ff9bc">00227</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> navigator::bool_type bool_type;
<a name="l00228"></a>00228 
<a name="l00229"></a>00229 
<a name="l00231"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#e8781db9ab6595cccf2b2c7a663f3319">00231</a>   <span class="keyword">typedef</span> std::deque&lt;navigator&gt; stack_type;
<a name="l00232"></a>00232 
<a name="l00233"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#fa4b3db6992f1376fac40dd59b92d37d">00233</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> stack_type::reference       reference;
<a name="l00234"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#0be6eb82bc26ea75518fdcfe0b40f4f6">00234</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> stack_type::const_reference const_reference;
<a name="l00235"></a>00235 
<a name="l00236"></a>00236   <span class="keyword">typedef</span> boost::indirect_iterator&lt;<span class="keyword">typename</span> stack_type::const_iterator,
<a name="l00237"></a>00237                                    <span class="keyword">typename</span> navigator::value_type, 
<a name="l00238"></a>00238                                    boost::use_default, 
<a name="l00239"></a>00239                                    <span class="keyword">typename</span> navigator::reference&gt;
<a name="l00240"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#aa24acaa321c73cfbf67da18d85d839e">00240</a>   const_iterator;
<a name="l00241"></a>00241 
<a name="l00242"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#1460895497755ad9a784c50658661d08">00242</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> stack_type::const_iterator stack_iterator;
<a name="l00243"></a>00243 
<a name="l00244"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#67b29a95a4f6a4f0d1ec689b5bfab1a6">00244</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> stack_type::const_reverse_iterator stack_reverse_iterator;
<a name="l00245"></a>00245 
<a name="l00246"></a>00246   <span class="keyword">typedef</span> boost::indirect_iterator&lt;<span class="keyword">typename</span> stack_type::const_reverse_iterator,
<a name="l00247"></a>00247                                    <span class="keyword">typename</span> navigator::value_type, 
<a name="l00248"></a>00248                                    boost::use_default, 
<a name="l00249"></a>00249                                    <span class="keyword">typename</span> navigator::reference&gt;
<a name="l00250"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#7644af35d736db31556c862f716e765e">00250</a>   const_reverse_iterator;
<a name="l00251"></a>00251 
<a name="l00252"></a>00252 <span class="keyword">private</span>:
<a name="l00253"></a>00253   <span class="keywordtype">void</span> pop() { m_stack.pop_back(); }
<a name="l00254"></a>00254 
<a name="l00255"></a>00255 <span class="keyword">protected</span>:
<a name="l00256"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#72f535e48116e340d4f0636ceb011fc2">00256</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#72f535e48116e340d4f0636ceb011fc2">push</a>(navigator __x) { m_stack.push_back(__x); }
<a name="l00257"></a>00257 
<a name="l00258"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#6288c5df40ef37bc7a1ff10b1d10b5e7">00258</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#6288c5df40ef37bc7a1ff10b1d10b5e7">clear</a>() { m_stack.clear(); }
<a name="l00259"></a>00259 
<a name="l00260"></a>00260   <span class="comment">// reference top() { return m_stack.back(); }</span>
<a name="l00261"></a>00261 
<a name="l00262"></a>00262 <span class="keyword">public</span>:
<a name="l00263"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#e15f2667460ecab7ca5c09bd997bee48">00263</a>   const_reference <a class="code" href="classpolybori_1_1CTermStackBase.html#e15f2667460ecab7ca5c09bd997bee48">top</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_stack.back(); }
<a name="l00264"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#6655fa0a45e012a1f902598e9290dd66">00264</a>   <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a> <a class="code" href="classpolybori_1_1CTermStackBase.html#6655fa0a45e012a1f902598e9290dd66">index</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> *top(); }
<a name="l00265"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#dfd2b5ac359aca43136b83f992f69a98">00265</a>   bool_type <a class="code" href="classpolybori_1_1CTermStackBase.html#dfd2b5ac359aca43136b83f992f69a98">empty</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_stack.empty(); }
<a name="l00266"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#3f011445428aba38c19a084672466f52">00266</a>   size_type <a class="code" href="classpolybori_1_1CTermStackBase.html#3f011445428aba38c19a084672466f52">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_stack.size(); }
<a name="l00267"></a>00267 
<a name="l00268"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#44f207e2866903a0fb1092d964f3b550">00268</a>   const_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#44f207e2866903a0fb1092d964f3b550">begin</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stackBegin(); }
<a name="l00269"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#30387a8cfe60321f9c863ef9d4945ae5">00269</a>   const_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#30387a8cfe60321f9c863ef9d4945ae5">end</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stackEnd(); }
<a name="l00270"></a>00270 
<a name="l00271"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#61cc2627bf475504f4a35be737ca25fe">00271</a>   const_reverse_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#61cc2627bf475504f4a35be737ca25fe">rbegin</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stackRBegin(); }
<a name="l00272"></a>00272 
<a name="l00273"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#08dec8b4678437a0d6296da579388796">00273</a>   const_reverse_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#08dec8b4678437a0d6296da579388796">rend</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> stackREnd(); }
<a name="l00274"></a>00274 
<a name="l00276"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#948e758964f465a9eb0fd0d87e3ac33e">00276</a>   navigator <a class="code" href="classpolybori_1_1CTermStackBase.html#948e758964f465a9eb0fd0d87e3ac33e" title="Get navigator of stack start.">navigation</a>()<span class="keyword"> const </span>{
<a name="l00277"></a>00277     assert(m_stack.begin() != m_stack.end());
<a name="l00278"></a>00278     <span class="keywordflow">return</span> *m_stack.begin();
<a name="l00279"></a>00279   }
<a name="l00280"></a>00280 
<a name="l00282"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#5a802424cbe858609164be88f0199f79">00282</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> stack_type::value_type top_type;
<a name="l00283"></a>00283 
<a name="l00285"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#714d54658284e5274dca714aa0e7d01d">00285</a>   <a class="code" href="classpolybori_1_1CTermStackBase.html#714d54658284e5274dca714aa0e7d01d" title="Default constructor.">CTermStackBase</a>(): <a class="code" href="classBaseType.html">BaseType</a>(), m_stack() { }
<a name="l00286"></a>00286 
<a name="l00288"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#3a3c463340dd1b9e81430679940d5193">00288</a>   <a class="code" href="classpolybori_1_1CTermStackBase.html#3a3c463340dd1b9e81430679940d5193" title="Construct from initial navigator.">CTermStackBase</a>(navigator navi): <a class="code" href="classBaseType.html">BaseType</a>(), m_stack() {
<a name="l00289"></a>00289     push(navi);
<a name="l00290"></a>00290   }
<a name="l00291"></a>00291 
<a name="l00293"></a>00293 
<a name="l00294"></a>00294 
<a name="l00296"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#5203792cccd5399ee9599710353280b3">00296</a>   bool_type <a class="code" href="classpolybori_1_1CTermStackBase.html#5203792cccd5399ee9599710353280b3" title="default Copy Constructor">equal</a>(<span class="keyword">const</span> <span class="keyword">self</span>&amp; rhs)<span class="keyword"> const </span>{
<a name="l00297"></a>00297 
<a name="l00298"></a>00298     <span class="keywordflow">if</span>(empty() || rhs.empty())
<a name="l00299"></a>00299       <span class="keywordflow">return</span> (empty() &amp;&amp; rhs.empty());
<a name="l00300"></a>00300     <span class="keywordflow">else</span>
<a name="l00301"></a>00301       <span class="keywordflow">return</span> (m_stack == rhs.m_stack);
<a name="l00302"></a>00302   }
<a name="l00303"></a>00303 
<a name="l00304"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#3da8de6037c6bb4319f4cb7ca241c47b">00304</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#3da8de6037c6bb4319f4cb7ca241c47b">incrementThen</a>() {
<a name="l00305"></a>00305     assert(!top().isConstant());
<a name="l00306"></a>00306 
<a name="l00307"></a>00307     push(top());
<a name="l00308"></a>00308     m_stack.back().incrementThen();
<a name="l00309"></a>00309   }
<a name="l00310"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#f067963ba26e9e62b282a72575aeae20">00310</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#f067963ba26e9e62b282a72575aeae20">incrementElse</a>() {
<a name="l00311"></a>00311     assert(!isConstant());
<a name="l00312"></a>00312     m_stack.back().incrementElse();
<a name="l00313"></a>00313   }
<a name="l00314"></a>00314 
<a name="l00315"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#0513e4985ae05f7520f39c859d93e0bd">00315</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#0513e4985ae05f7520f39c859d93e0bd">decrementNode</a>() {
<a name="l00316"></a>00316     assert(!empty());
<a name="l00317"></a>00317     pop();
<a name="l00318"></a>00318   }
<a name="l00319"></a>00319 
<a name="l00320"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#f24a7209263f1b552703690834ea6498">00320</a>   bool_type <a class="code" href="classpolybori_1_1CTermStackBase.html#f24a7209263f1b552703690834ea6498">isConstant</a>()<span class="keyword"> const </span>{
<a name="l00321"></a>00321     assert(!empty());
<a name="l00322"></a>00322     <span class="keywordflow">return</span> top().isConstant();
<a name="l00323"></a>00323   }
<a name="l00324"></a>00324 
<a name="l00325"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#73eb07eb5b4a9baec0f60d861c53f17e">00325</a>   bool_type <a class="code" href="classpolybori_1_1CTermStackBase.html#73eb07eb5b4a9baec0f60d861c53f17e">isTerminated</a>()<span class="keyword"> const </span>{
<a name="l00326"></a>00326     assert(!empty());
<a name="l00327"></a>00327     <span class="keywordflow">return</span> top().isTerminated();
<a name="l00328"></a>00328   }
<a name="l00329"></a>00329 
<a name="l00330"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#4c95d2f13baede57dd537efd736eecc1">00330</a>   bool_type <a class="code" href="classpolybori_1_1CTermStackBase.html#4c95d2f13baede57dd537efd736eecc1">isInvalid</a>()<span class="keyword"> const </span>{
<a name="l00331"></a>00331     assert(!empty());
<a name="l00332"></a>00332     <span class="keywordflow">return</span> top().isEmpty();
<a name="l00333"></a>00333   }
<a name="l00334"></a>00334 
<a name="l00335"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#9378f9f3c7d3ed747bf2ddcc18af4f32">00335</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#9378f9f3c7d3ed747bf2ddcc18af4f32">followThen</a>() {
<a name="l00336"></a>00336     assert(!empty());
<a name="l00337"></a>00337     <span class="keywordflow">while</span>(!isConstant())
<a name="l00338"></a>00338       incrementThen();
<a name="l00339"></a>00339   }
<a name="l00340"></a>00340 
<a name="l00341"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#3c59bd0e85d6457a4caf84b7dc1d4a74">00341</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#3c59bd0e85d6457a4caf84b7dc1d4a74">markOne</a>() {
<a name="l00342"></a>00342     assert(empty());
<a name="l00343"></a>00343     push(navigator());
<a name="l00344"></a>00344   }
<a name="l00345"></a>00345 
<a name="l00346"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#f32e0d2720c4070958c1e9d0eee52fff">00346</a>   bool_type <a class="code" href="classpolybori_1_1CTermStackBase.html#f32e0d2720c4070958c1e9d0eee52fff">markedOne</a>()<span class="keyword"> const </span>{
<a name="l00347"></a>00347     <span class="keywordflow">if</span> (empty())
<a name="l00348"></a>00348       <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00349"></a>00349     <span class="keywordflow">else</span>
<a name="l00350"></a>00350       <span class="keywordflow">return</span> !m_stack.front().isValid();
<a name="l00351"></a>00351   }
<a name="l00352"></a>00352 
<a name="l00353"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#c26f826732d6ffb40f20cbe1207a6def">00353</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#c26f826732d6ffb40f20cbe1207a6def">clearOne</a>() {
<a name="l00354"></a>00354     pop();
<a name="l00355"></a>00355     assert(empty());
<a name="l00356"></a>00356   } 
<a name="l00357"></a>00357 
<a name="l00358"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#eb11cb1fc141b24ddfaec591077baab4">00358</a>   size_type <a class="code" href="classpolybori_1_1CTermStackBase.html#eb11cb1fc141b24ddfaec591077baab4">deg</a>()<span class="keyword"> const </span>{
<a name="l00359"></a>00359     <span class="keywordflow">return</span> (markedOne()? 0: size());
<a name="l00360"></a>00360   }
<a name="l00361"></a>00361 
<a name="l00362"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#a6b99018b35611ef8cdda301e7486b12">00362</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#a6b99018b35611ef8cdda301e7486b12">invalidate</a>() {
<a name="l00363"></a>00363     push(BooleEnv::zero().navigation());
<a name="l00364"></a>00364   }
<a name="l00365"></a>00365 
<a name="l00366"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#1416a3f39f14de7de605162b16a74b16">00366</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#1416a3f39f14de7de605162b16a74b16">restart</a>(navigator navi) {
<a name="l00367"></a>00367     assert(empty());
<a name="l00368"></a>00368     push(navi);
<a name="l00369"></a>00369   }
<a name="l00370"></a>00370 
<a name="l00371"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#e78589d8e4fc5ce51fbc5540419186ad">00371</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#e78589d8e4fc5ce51fbc5540419186ad">isOne</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> markedOne(); }
<a name="l00372"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#be50e49bdcdcabf4314ca6dd69073c5d">00372</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#be50e49bdcdcabf4314ca6dd69073c5d">isZero</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> empty(); }
<a name="l00373"></a>00373 
<a name="l00374"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#000bd00a07dfc9c5ed0b1fd4ffd977dd">00374</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#000bd00a07dfc9c5ed0b1fd4ffd977dd">atBegin</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> empty(); }
<a name="l00375"></a>00375 
<a name="l00376"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#7db2c8f4752b6989991d8c0f760de156">00376</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#7db2c8f4752b6989991d8c0f760de156">atEnd</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#7db2c8f4752b6989991d8c0f760de156">atEnd</a>(top()); }
<a name="l00377"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#10e0d4f5a3336cd4a5585ca69546ef81">00377</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#10e0d4f5a3336cd4a5585ca69546ef81">atEnd</a>(navigator navi)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> navi.isConstant(); }
<a name="l00378"></a>00378 
<a name="l00379"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#329d23dd436a896c8b3c74e4050e3a20">00379</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#329d23dd436a896c8b3c74e4050e3a20">validEnd</a>()<span class="keyword"> const </span>{  <span class="keywordflow">return</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#329d23dd436a896c8b3c74e4050e3a20">validEnd</a>(top()); }
<a name="l00380"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#6456cbfffb4dd5b959efa4073f7284a3">00380</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#6456cbfffb4dd5b959efa4073f7284a3">validEnd</a>(navigator navi)<span class="keyword"> const </span>{ 
<a name="l00381"></a>00381     <span class="keywordflow">while</span>(!navi.isConstant()) {
<a name="l00382"></a>00382       navi.incrementElse();
<a name="l00383"></a>00383     }
<a name="l00384"></a>00384     <span class="keywordflow">return</span> navi.terminalValue();
<a name="l00385"></a>00385   }
<a name="l00386"></a>00386 
<a name="l00387"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#bcc629e730d808d8ab9098cdef80e1d2">00387</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#bcc629e730d808d8ab9098cdef80e1d2">print</a>()<span class="keyword"> const</span>{
<a name="l00388"></a>00388     std::cout &lt;&lt;<span class="stringliteral">"("</span>;
<a name="l00389"></a>00389     std::copy(begin(), end(), std::ostream_iterator&lt;int&gt;(cout, <span class="stringliteral">", "</span>)); 
<a name="l00390"></a>00390     std::cout &lt;&lt;<span class="stringliteral">")"</span>;
<a name="l00391"></a>00391   }
<a name="l00392"></a>00392 
<a name="l00393"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#305bcf6aa1445535d55c26d96d358fd5">00393</a>   stack_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#305bcf6aa1445535d55c26d96d358fd5">stackBegin</a>()<span class="keyword"> const </span>{ 
<a name="l00394"></a>00394     <span class="keywordflow">if</span> (markedOne())
<a name="l00395"></a>00395       <span class="keywordflow">return</span> m_stack.end();
<a name="l00396"></a>00396     <span class="keywordflow">else</span>
<a name="l00397"></a>00397       <span class="keywordflow">return</span> m_stack.begin(); 
<a name="l00398"></a>00398   }
<a name="l00399"></a>00399 
<a name="l00400"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#2c982d06da8786a42d256d9e833621ea">00400</a>   stack_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#2c982d06da8786a42d256d9e833621ea">stackEnd</a>()<span class="keyword"> const </span>{
<a name="l00401"></a>00401     <span class="keywordflow">return</span> m_stack.end();
<a name="l00402"></a>00402   }
<a name="l00403"></a>00403 
<a name="l00404"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#11202d32c94dec44b94df3438aa4ca9d">00404</a>   stack_reverse_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#11202d32c94dec44b94df3438aa4ca9d">stackRBegin</a>()<span class="keyword"> const </span>{ 
<a name="l00405"></a>00405     <span class="keywordflow">if</span> (markedOne())
<a name="l00406"></a>00406       <span class="keywordflow">return</span> m_stack.rend();
<a name="l00407"></a>00407     <span class="keywordflow">else</span>
<a name="l00408"></a>00408       <span class="keywordflow">return</span> m_stack.rbegin(); 
<a name="l00409"></a>00409   }
<a name="l00410"></a>00410 
<a name="l00411"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#ae0d8b20a97ffa9547543ef2e6dd5231">00411</a>   stack_reverse_iterator <a class="code" href="classpolybori_1_1CTermStackBase.html#ae0d8b20a97ffa9547543ef2e6dd5231">stackREnd</a>()<span class="keyword"> const </span>{
<a name="l00412"></a>00412     <span class="keywordflow">return</span> m_stack.rend();
<a name="l00413"></a>00413   }
<a name="l00414"></a>00414 <span class="keyword">protected</span>:
<a name="l00415"></a>00415 
<a name="l00416"></a>00416   <span class="keyword">template</span> &lt;<span class="keyword">class</span> TermStack&gt;
<a name="l00417"></a><a class="code" href="classpolybori_1_1CTermStackBase.html#29d54581dbb7f334d9cb72f4979405c5">00417</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStackBase.html#29d54581dbb7f334d9cb72f4979405c5">append</a>(<span class="keyword">const</span> TermStack&amp; rhs) { 
<a name="l00418"></a>00418     assert(empty() || rhs.empty() || ((*rhs.begin()) &gt; (*top())) );
<a name="l00419"></a>00419     m_stack.insert(m_stack.end(), rhs.m_stack.begin(), rhs.m_stack.end());
<a name="l00420"></a>00420   }
<a name="l00421"></a>00421 
<a name="l00422"></a>00422 
<a name="l00423"></a>00423 <span class="keyword">private</span>:
<a name="l00424"></a>00424   stack_type m_stack;
<a name="l00425"></a>00425 };
<a name="l00426"></a>00426 
<a name="l00427"></a>00427 
<a name="l00428"></a>00428 
<a name="l00429"></a>00429 
<a name="l00430"></a>00430 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> Category, <span class="keyword">class</span> BaseType = <span class="keywordtype">int</span>ernal_tag&gt;
<a name="l00431"></a><a class="code" href="classpolybori_1_1CTermStack.html">00431</a> <span class="keyword">class </span><a class="code" href="classpolybori_1_1CTermStack.html" title="This class defines an iterator for the monomials in a Boolean polynomial.">CTermStack</a>:
<a name="l00432"></a>00432   <span class="keyword">public</span> <a class="code" href="classpolybori_1_1CTermStackBase.html">CTermStackBase</a>&lt;NavigatorType, BaseType&gt; {
<a name="l00433"></a>00433 
<a name="l00434"></a>00434 <span class="keyword">public</span>:
<a name="l00435"></a><a class="code" href="classpolybori_1_1CTermStack.html#f141b14bcbdfebfbf1834f9b7870dfd8">00435</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CTermStackBase.html">CTermStackBase&lt;NavigatorType, BaseType&gt;</a> <a class="code" href="classpolybori_1_1CTermStackBase.html">base</a>;
<a name="l00436"></a><a class="code" href="classpolybori_1_1CTermStack.html#f0568a814ded033ba07f456b4e885bc2">00436</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CTermStack.html">CTermStack&lt;NavigatorType, Category, BaseType&gt;</a> <span class="keyword">self</span>;
<a name="l00437"></a>00437 
<a name="l00439"></a><a class="code" href="classpolybori_1_1CTermStack.html#d278dea4974b812a96a0d34abdf82e2b">00439</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CTermStack.html" title="This class defines an iterator for the monomials in a Boolean polynomial.">CTermStack&lt;NavigatorType, Category, internal_tag&gt;</a> <a class="code" href="classpolybori_1_1CTermStack.html" title="This class defines an iterator for the monomials in a Boolean polynomial.">purestack_type</a>;
<a name="l00440"></a><a class="code" href="classpolybori_1_1CTermStack.html#43df7a1394b3593feca176436f9c86c3">00440</a>   <span class="keyword">typedef</span> Category iterator_category;
<a name="l00441"></a>00441 
<a name="l00442"></a><a class="code" href="classpolybori_1_1CTermStack.html#b3dfe28bf6a9143aee57eb1a61fce8fe">00442</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::navigator navigator;
<a name="l00443"></a>00443   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classpolybori_1_1on__same__type.html" title="This class switches betweem two types, depending on equality of types.">on_same_type</a>&lt;Category, std::forward_iterator_tag, 
<a name="l00444"></a>00444                                 <a class="code" href="classproject__ith.html" title="Virtually does nothing with the given arguments.">project_ith&lt;0&gt;</a>, 
<a name="l00445"></a>00445                                 <a class="code" href="classpolybori_1_1handle__else.html">handle_else&lt;NavigatorType&gt;</a> &gt;::type
<a name="l00446"></a><a class="code" href="classpolybori_1_1CTermStack.html#6eca93e906daa0e586865cac058f557d">00446</a>                                 else_handler;
<a name="l00447"></a>00447 
<a name="l00448"></a><a class="code" href="classpolybori_1_1CTermStack.html#b9fa41cf7623829bab0c49b882cc9a76">00448</a>   else_handler handleElse;
<a name="l00449"></a>00449 
<a name="l00450"></a>00450   <span class="keyword">using</span> base::incrementThen;
<a name="l00451"></a>00451   <span class="keyword">using</span> base::followThen;
<a name="l00452"></a>00452 
<a name="l00454"></a><a class="code" href="classpolybori_1_1CTermStack.html#22c3fa6992b0158d4c313670c1a89eca">00454</a>   <a class="code" href="classpolybori_1_1CTermStack.html#22c3fa6992b0158d4c313670c1a89eca" title="Default constructor.">CTermStack</a>(): <a class="code" href="classpolybori_1_1CTermStackBase.html">base</a>() { }
<a name="l00455"></a>00455 
<a name="l00457"></a><a class="code" href="classpolybori_1_1CTermStack.html#80e248234b8eb950f0cc3e9f2c09a08f">00457</a>   <a class="code" href="classpolybori_1_1CTermStack.html#80e248234b8eb950f0cc3e9f2c09a08f" title="Construct from initial navigator.">CTermStack</a>(navigator navi): <a class="code" href="classpolybori_1_1CTermStackBase.html">base</a>(navi) { }
<a name="l00458"></a>00458 
<a name="l00461"></a>00461   <span class="keyword">template</span> &lt;<span class="keyword">class</span> Dummy&gt;
<a name="l00462"></a><a class="code" href="classpolybori_1_1CTermStack.html#ae92069f951238216e3102d81574bbed">00462</a>   <a class="code" href="classpolybori_1_1CTermStack.html#ae92069f951238216e3102d81574bbed">CTermStack</a>(navigator navi, <span class="keyword">const</span> Dummy&amp;): <a class="code" href="classpolybori_1_1CTermStackBase.html">base</a>(navi) { }
<a name="l00463"></a>00463 
<a name="l00464"></a><a class="code" href="classpolybori_1_1CTermStack.html#0fc5b5f4cfae68a4e9812461eab72b1c">00464</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#0fc5b5f4cfae68a4e9812461eab72b1c">init</a>() {
<a name="l00465"></a>00465     followThen();
<a name="l00466"></a>00466     terminate();
<a name="l00467"></a>00467   }
<a name="l00468"></a>00468 
<a name="l00469"></a><a class="code" href="classpolybori_1_1CTermStack.html#20b076a8184b00577a6e073a8662402c">00469</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#20b076a8184b00577a6e073a8662402c">initLast</a>() {
<a name="l00470"></a>00470     followElse();
<a name="l00471"></a>00471     terminate();
<a name="l00472"></a>00472   }
<a name="l00473"></a>00473 
<a name="l00474"></a><a class="code" href="classpolybori_1_1CTermStack.html#c1cc07bfaa0318f6d587b607df2a1f49">00474</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#c1cc07bfaa0318f6d587b607df2a1f49">incrementElse</a>() {
<a name="l00475"></a>00475     assert(!base::empty());
<a name="l00476"></a>00476     handleElse(base::top());
<a name="l00477"></a>00477     base::incrementElse();
<a name="l00478"></a>00478   }
<a name="l00479"></a>00479 
<a name="l00480"></a><a class="code" href="classpolybori_1_1CTermStack.html#12e725cb958cd98fa7545d43a46482a1">00480</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#12e725cb958cd98fa7545d43a46482a1">next</a>() {
<a name="l00481"></a>00481 
<a name="l00482"></a>00482     <span class="keywordtype">bool</span> invalid = <span class="keyword">true</span>;
<a name="l00483"></a>00483     <span class="keywordflow">while</span> (!base::empty() &amp;&amp; invalid) {
<a name="l00484"></a>00484       incrementElse();
<a name="l00485"></a>00485       <span class="keywordflow">if</span> (invalid = base::isInvalid())
<a name="l00486"></a>00486         base::decrementNode();
<a name="l00487"></a>00487     }
<a name="l00488"></a>00488   }
<a name="l00489"></a>00489 
<a name="l00490"></a><a class="code" href="classpolybori_1_1CTermStack.html#2249b2d035b75c6b25335b3362f5f1a7">00490</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#2249b2d035b75c6b25335b3362f5f1a7">previous</a>() {
<a name="l00491"></a>00491     previous(Category());
<a name="l00492"></a>00492   }
<a name="l00493"></a>00493 
<a name="l00494"></a>00494 
<a name="l00495"></a><a class="code" href="classpolybori_1_1CTermStack.html#9b48d52caffa4909c88da39c621a4ecb">00495</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#9b48d52caffa4909c88da39c621a4ecb">increment</a>() {
<a name="l00496"></a>00496     assert(!base::empty());
<a name="l00497"></a>00497     <span class="keywordflow">if</span> (base::markedOne()) {
<a name="l00498"></a>00498       base::clearOne();
<a name="l00499"></a>00499       <span class="keywordflow">return</span>;
<a name="l00500"></a>00500     }
<a name="l00501"></a>00501       
<a name="l00502"></a>00502     next();
<a name="l00503"></a>00503     <span class="keywordflow">if</span> (!base::empty()) {
<a name="l00504"></a>00504       followThen();
<a name="l00505"></a>00505       terminate();
<a name="l00506"></a>00506     }
<a name="l00507"></a>00507 
<a name="l00508"></a>00508   }
<a name="l00509"></a>00509 
<a name="l00510"></a><a class="code" href="classpolybori_1_1CTermStack.html#a0d381364a14b740d5a14dd4e08e07f4">00510</a>    <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#a0d381364a14b740d5a14dd4e08e07f4">decrement</a>() {
<a name="l00511"></a>00511 
<a name="l00512"></a>00512     <span class="keywordflow">if</span> (base::markedOne()) {
<a name="l00513"></a>00513       base::clearOne();
<a name="l00514"></a>00514     }
<a name="l00515"></a>00515       
<a name="l00516"></a>00516     previous();
<a name="l00517"></a>00517     followElse();
<a name="l00518"></a>00518     base::decrementNode();
<a name="l00519"></a>00519 
<a name="l00520"></a>00520   }
<a name="l00521"></a>00521 
<a name="l00522"></a><a class="code" href="classpolybori_1_1CTermStack.html#524cea849b71f5197261966d8c20f94d">00522</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#524cea849b71f5197261966d8c20f94d">terminate</a>() {
<a name="l00523"></a>00523     assert(!base::empty());
<a name="l00524"></a>00524 
<a name="l00525"></a>00525     <span class="keywordtype">bool</span> isZero = base::isInvalid();
<a name="l00526"></a>00526     base::decrementNode();
<a name="l00527"></a>00527     <span class="keywordflow">if</span> (base::empty() &amp;&amp; !isZero)
<a name="l00528"></a>00528       base::markOne();
<a name="l00529"></a>00529   }
<a name="l00530"></a>00530 
<a name="l00531"></a>00531 
<a name="l00532"></a><a class="code" href="classpolybori_1_1CTermStack.html#941190f6126b5b95539fa8853766aa5e">00532</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#941190f6126b5b95539fa8853766aa5e">followElse</a>() {
<a name="l00533"></a>00533     <span class="keywordflow">while</span>( !base::isConstant() ) <span class="comment">// if still in interior of a path</span>
<a name="l00534"></a>00534       incrementValidElse();
<a name="l00535"></a>00535   }
<a name="l00536"></a>00536   
<a name="l00537"></a><a class="code" href="classpolybori_1_1CTermStack.html#6787e02a80265a59581169285664982b">00537</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#6787e02a80265a59581169285664982b">incrementValidElse</a>() {
<a name="l00538"></a>00538     assert(!base::empty() &amp;&amp; !base::isConstant());
<a name="l00539"></a>00539     <span class="keywordflow">if</span>(!base::top().elseBranch().isEmpty())
<a name="l00540"></a>00540       incrementElse();          <span class="comment">// go in direction of last term, if possible</span>
<a name="l00541"></a>00541     <span class="keywordflow">else</span>
<a name="l00542"></a>00542       incrementThen();
<a name="l00543"></a>00543   } 
<a name="l00544"></a>00544 <span class="keyword">protected</span>:
<a name="l00545"></a>00545   <span class="keyword">template</span> &lt;<span class="keyword">class</span> TermStack&gt;
<a name="l00546"></a><a class="code" href="classpolybori_1_1CTermStack.html#7b2c60de4e8d6babbc10a3208bf6fd59">00546</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CTermStack.html#7b2c60de4e8d6babbc10a3208bf6fd59">append</a>(<span class="keyword">const</span> TermStack&amp; rhs) {
<a name="l00547"></a>00547     base::append(rhs);
<a name="l00548"></a>00548     append(rhs, Category());
<a name="l00549"></a>00549   }
<a name="l00550"></a>00550 
<a name="l00551"></a>00551 <span class="keyword">private</span>:
<a name="l00552"></a>00552   <span class="keywordtype">void</span> previous(std::forward_iterator_tag);
<a name="l00553"></a>00553   <span class="keywordtype">void</span> previous(std::bidirectional_iterator_tag);
<a name="l00554"></a>00554 
<a name="l00555"></a>00555   <span class="keyword">template</span> &lt;<span class="keyword">class</span> TermStack&gt;
<a name="l00556"></a>00556   <span class="keywordtype">void</span> append(<span class="keyword">const</span> TermStack&amp;, std::forward_iterator_tag){}
<a name="l00557"></a>00557 
<a name="l00558"></a>00558   <span class="keyword">template</span> &lt;<span class="keyword">class</span> TermStack&gt;
<a name="l00559"></a>00559   <span class="keywordtype">void</span> append(<span class="keyword">const</span> TermStack&amp; rhs, std::bidirectional_iterator_tag){
<a name="l00560"></a>00560      handleElse.append(rhs.handleElse); 
<a name="l00561"></a>00561   }
<a name="l00562"></a>00562 };
<a name="l00563"></a>00563 
<a name="l00564"></a>00564 
<a name="l00565"></a>00565 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> Category, <span class="keyword">class</span> BaseType&gt;
<a name="l00566"></a>00566 <span class="keyword">inline</span> <span class="keywordtype">void</span> CTermStack&lt;NavigatorType, Category, BaseType&gt;::previous(
<a name="l00567"></a>00567   std::forward_iterator_tag) { }
<a name="l00568"></a>00568 
<a name="l00569"></a>00569 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> Category, <span class="keyword">class</span> BaseType&gt;
<a name="l00570"></a>00570 <span class="keyword">inline</span> <span class="keywordtype">void</span> CTermStack&lt;NavigatorType, Category, BaseType&gt;::previous(
<a name="l00571"></a>00571   std::bidirectional_iterator_tag) { 
<a name="l00572"></a>00572 
<a name="l00573"></a>00573   <span class="keywordflow">if</span>(handleElse.empty()) {
<a name="l00574"></a>00574     base::clear();
<a name="l00575"></a>00575     <span class="keywordflow">return</span>;
<a name="l00576"></a>00576   }
<a name="l00577"></a>00577 
<a name="l00578"></a>00578   navigator navi = handleElse.top();
<a name="l00579"></a>00579 
<a name="l00580"></a>00580   assert(base::top().isValid());
<a name="l00581"></a>00581 
<a name="l00582"></a>00582   <span class="keywordflow">while</span>(!base::empty() &amp;&amp; (base::index() &gt;= *navi) ) {
<a name="l00583"></a>00583     base::decrementNode();
<a name="l00584"></a>00584   }
<a name="l00585"></a>00585 
<a name="l00586"></a>00586   handleElse.pop();
<a name="l00587"></a>00587   base::push(navi);
<a name="l00588"></a>00588   incrementThen();
<a name="l00589"></a>00589 }
<a name="l00590"></a>00590 
<a name="l00591"></a>00591 
<a name="l00592"></a>00592 <span class="keyword">template</span> &lt;<span class="keyword">class </span>NavigatorType, <span class="keyword">class </span>BlockProperty, <span class="keyword">class </span>Category, <span class="keyword">class</span>
<a name="l00593"></a>00593           <a class="code" href="classBaseType.html">BaseType</a> = internal_tag&gt;
<a name="l00594"></a>00594 <span class="keyword">class </span>CDegStackCore;
<a name="l00595"></a>00595 
<a name="l00597"></a>00597 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> Category, <span class="keyword">class</span> BaseType&gt;
<a name="l00598"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html">00598</a> <span class="keyword">class </span>CDegStackCore&lt;NavigatorType, <a class="code" href="structpolybori_1_1invalid__tag.html" title="This class shows, whether a property of an order is invalid.">invalid_tag</a>, Category, BaseType&gt;:
<a name="l00599"></a>00599   <span class="keyword">public</span> <a class="code" href="classpolybori_1_1CTermStack.html" title="This class defines an iterator for the monomials in a Boolean polynomial.">CTermStack</a>&lt;NavigatorType, Category, BaseType&gt; {
<a name="l00600"></a>00600 
<a name="l00601"></a>00601 <span class="keyword">public</span>:
<a name="l00602"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#1e613fd6656df857709712f5bdc7b96f">00602</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CTermStack.html">CTermStack&lt;NavigatorType, Category, BaseType&gt;</a> <a class="code" href="classpolybori_1_1CTermStack.html">base</a>;
<a name="l00603"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#4720a94f5f4993f6d930bc09a84ba5a8">00603</a>   <span class="keyword">typedef</span> NavigatorType navigator;
<a name="l00604"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#5fd3cfc2ece31a410177cf0c85ab64b0">00604</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structpolybori_1_1cached__deg.html">cached_deg&lt;navigator&gt;::manager_type</a> manager_type;
<a name="l00605"></a>00605 
<a name="l00606"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#8c71d5272d002168a20e571af3a97b6a">00606</a>   <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#8c71d5272d002168a20e571af3a97b6a">CDegStackCore</a>(): <a class="code" href="classpolybori_1_1CTermStack.html">base</a>(), getDeg(typename manager_type::mgrcore_ptr()) {}
<a name="l00607"></a>00607 
<a name="l00608"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#6882ac568c681c4718f52d3c94a99c69">00608</a>   CDegStackCore(navigator navi, <span class="keyword">const</span> manager_type&amp; mgr):
<a name="l00609"></a>00609     <a class="code" href="classpolybori_1_1CTermStack.html">base</a>(navi), getDeg(mgr) {}
<a name="l00610"></a>00610 
<a name="l00611"></a>00611 
<a name="l00612"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#809ce0f1f17e88b1f72bd22c0fbeec85">00612</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#809ce0f1f17e88b1f72bd22c0fbeec85">gotoEnd</a>()  {
<a name="l00613"></a>00613      assert(!base::empty());
<a name="l00614"></a>00614      <span class="keywordflow">while</span>(!base::isConstant()) {
<a name="l00615"></a>00615        base::incrementElse();
<a name="l00616"></a>00616      }
<a name="l00617"></a>00617   }
<a name="l00618"></a>00618 
<a name="l00619"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01invalid__tag_00_01Category_00_01BaseType_01_4.html#6b992cd7256a5e53b4c3a0eab973dc7e">00619</a>   <a class="code" href="structpolybori_1_1cached__deg.html">cached_deg&lt;navigator&gt;</a> getDeg;
<a name="l00620"></a>00620 };
<a name="l00621"></a>00621 
<a name="l00623"></a>00623 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> Category, <span class="keyword">class</span> BaseType&gt;
<a name="l00624"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html">00624</a> <span class="keyword">class </span>CDegStackCore&lt;NavigatorType, <a class="code" href="structpolybori_1_1valid__tag.html" title="This class shows, whether a property of an order is valid.">valid_tag</a>, Category, BaseType&gt; :
<a name="l00625"></a>00625   <span class="keyword">public</span> <a class="code" href="classpolybori_1_1CTermStack.html" title="This class defines an iterator for the monomials in a Boolean polynomial.">CTermStack</a>&lt;NavigatorType, Category, BaseType&gt; {
<a name="l00626"></a>00626 
<a name="l00627"></a>00627 <span class="keyword">public</span>:
<a name="l00628"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#84c59a6321b691f536851003a2d5236d">00628</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CTermStack.html">CTermStack&lt;NavigatorType, Category, BaseType&gt;</a> <a class="code" href="classpolybori_1_1CTermStack.html">base</a>;
<a name="l00629"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#931f5455f222b227e8fc7e4348d71012">00629</a>   <span class="keyword">typedef</span> NavigatorType navigator;
<a name="l00630"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#cce519e2a5f672ff14e972b778150d27">00630</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">base::idx_type</a> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a>;
<a name="l00631"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#3e392cbbbe05fb69e7410ea201bdef05">00631</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::size_type size_type;
<a name="l00632"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#fda7b5f06681ea7dff1de14ebab36fef">00632</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="classpolybori_1_1cached__block__deg.html">cached_block_deg&lt;navigator&gt;::manager_type</a> manager_type;
<a name="l00633"></a>00633 
<a name="l00634"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#aea6d594de99fbd6a47fd803dfed6417">00634</a>   <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#aea6d594de99fbd6a47fd803dfed6417">CDegStackCore</a>(): <a class="code" href="classpolybori_1_1CTermStack.html">base</a>(), block(typename manager_type::mgrcore_ptr()) {}
<a name="l00635"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#a828c540f9eb012878ee1af03fcb5472">00635</a>   CDegStackCore(navigator navi, <span class="keyword">const</span> manager_type&amp; mgr): 
<a name="l00636"></a>00636     <a class="code" href="classpolybori_1_1CTermStack.html">base</a>(navi), block(mgr) {}
<a name="l00637"></a>00637 
<a name="l00638"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#41eabfbff411fef55e9f2e5738b8024e">00638</a>   size_type <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#41eabfbff411fef55e9f2e5738b8024e">getDeg</a>(navigator navi)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> block(navi); }
<a name="l00639"></a>00639 
<a name="l00640"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#36d047cf3153617c29485386c6d3d0ee">00640</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#36d047cf3153617c29485386c6d3d0ee">atBegin</a>()<span class="keyword"> const </span>{ 
<a name="l00641"></a>00641     <span class="keywordflow">return</span> base::empty() || (base::index() &lt; block.min()); 
<a name="l00642"></a>00642   }
<a name="l00643"></a>00643 
<a name="l00644"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#45a6bc1432c0fab926cebd37e8199101">00644</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#45a6bc1432c0fab926cebd37e8199101">atEnd</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#45a6bc1432c0fab926cebd37e8199101">atEnd</a>(base::top()); }
<a name="l00645"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#575ab6013d16269428f2850f9d0015b6">00645</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#575ab6013d16269428f2850f9d0015b6">atEnd</a>(navigator navi)<span class="keyword"> const </span>{
<a name="l00646"></a>00646     <span class="keywordflow">return</span> navi.isConstant() || (*navi &gt;= block.max());
<a name="l00647"></a>00647   }
<a name="l00648"></a>00648 
<a name="l00649"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#023b55eb0dbf829b118536ab9a1839eb">00649</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#023b55eb0dbf829b118536ab9a1839eb">validEnd</a>()<span class="keyword"> const</span>{ <span class="keywordflow">return</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#023b55eb0dbf829b118536ab9a1839eb">validEnd</a>(base::top()); }
<a name="l00650"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#45101248c511217593498ca4f9efb2e6">00650</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#45101248c511217593498ca4f9efb2e6">validEnd</a>(navigator navi)<span class="keyword"> const </span>{
<a name="l00651"></a>00651 
<a name="l00652"></a>00652     <span class="keywordflow">while</span>(!<a class="code" href="classpolybori_1_1CTermStackBase.html#7db2c8f4752b6989991d8c0f760de156">atEnd</a>(navi))
<a name="l00653"></a>00653       navi.incrementElse();
<a name="l00654"></a>00654 
<a name="l00655"></a>00655     <span class="keywordflow">return</span> (navi.isConstant()? navi.terminalValue(): *navi &gt;= block.max());
<a name="l00656"></a>00656   }
<a name="l00657"></a>00657 
<a name="l00658"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#8066f7c24b84193cd1aeadf94268a333">00658</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#8066f7c24b84193cd1aeadf94268a333">next</a>() {
<a name="l00659"></a>00659 
<a name="l00660"></a>00660     <span class="keywordtype">bool</span> invalid = <span class="keyword">true</span>;
<a name="l00661"></a>00661     <span class="keywordflow">while</span> (!<a class="code" href="classpolybori_1_1CTermStackBase.html#000bd00a07dfc9c5ed0b1fd4ffd977dd">atBegin</a>() &amp;&amp; invalid) {
<a name="l00662"></a>00662       assert(!base::isConstant());
<a name="l00663"></a>00663       base::incrementElse();
<a name="l00664"></a>00664       <span class="keywordflow">if</span> (invalid = base::isInvalid())
<a name="l00665"></a>00665         base::decrementNode();
<a name="l00666"></a>00666     }
<a name="l00667"></a>00667   }
<a name="l00668"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#8e2e549dff80c67ab6bdba7bd3f6157f">00668</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#8e2e549dff80c67ab6bdba7bd3f6157f">previous</a>() {
<a name="l00669"></a>00669 
<a name="l00670"></a>00670     <span class="keywordflow">if</span>( base::handleElse.<a class="code" href="classpolybori_1_1CTermStackBase.html#dfd2b5ac359aca43136b83f992f69a98">empty</a>() || (*base::handleElse.<a class="code" href="classpolybori_1_1CTermStackBase.html#e15f2667460ecab7ca5c09bd997bee48">top</a>() &lt; block.min()) ) {
<a name="l00671"></a>00671       <span class="keywordflow">while</span>(!<a class="code" href="classpolybori_1_1CTermStackBase.html#000bd00a07dfc9c5ed0b1fd4ffd977dd">atBegin</a>())
<a name="l00672"></a>00672         base::decrementNode();
<a name="l00673"></a>00673       <span class="keywordflow">return</span>;
<a name="l00674"></a>00674     }
<a name="l00675"></a>00675     navigator navi =  base::handleElse.top();
<a name="l00676"></a>00676     assert(base::top().isValid());
<a name="l00677"></a>00677 
<a name="l00678"></a>00678     <span class="keywordflow">while</span>(!<a class="code" href="classpolybori_1_1CTermStackBase.html#000bd00a07dfc9c5ed0b1fd4ffd977dd">atBegin</a>() &amp;&amp; (base::index() &gt;= *navi) ) {
<a name="l00679"></a>00679       base::decrementNode();
<a name="l00680"></a>00680     }
<a name="l00681"></a>00681 
<a name="l00682"></a>00682     <span class="keywordflow">if</span> (base::empty() || (base::index() &lt; *navi)) {
<a name="l00683"></a>00683       base::handleElse.pop();
<a name="l00684"></a>00684       base::push(navi);
<a name="l00685"></a>00685     }
<a name="l00686"></a>00686       base::incrementThen();
<a name="l00687"></a>00687   }
<a name="l00688"></a>00688 
<a name="l00689"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#408a1d7820b79b8b2f2e63e563ea369f">00689</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#408a1d7820b79b8b2f2e63e563ea369f">gotoEnd</a>()  {
<a name="l00690"></a>00690      assert(!base::empty());
<a name="l00691"></a>00691      <span class="keywordflow">while</span>( (!base::isConstant()) &amp;&amp; (base::index() &lt; block.max()) ) {
<a name="l00692"></a>00692        base::incrementElse();
<a name="l00693"></a>00693      }
<a name="l00694"></a>00694   }
<a name="l00695"></a>00695 
<a name="l00696"></a>00696 <span class="keyword">protected</span>:
<a name="l00697"></a><a class="code" href="classpolybori_1_1CDegStackCore_3_01NavigatorType_00_01valid__tag_00_01Category_00_01BaseType_01_4.html#2b68c46d0800113c049f0e71caa8ddbd">00697</a>    <a class="code" href="classpolybori_1_1cached__block__deg.html">cached_block_deg&lt;navigator&gt;</a> block;
<a name="l00698"></a>00698 };
<a name="l00699"></a>00699 
<a name="l00700"></a>00700 <span class="keyword">template</span> &lt;<span class="keyword">class </span>NavigatorType, <span class="keyword">class </span>BlockProperty, <span class="keyword">class </span>DescendingProperty,
<a name="l00701"></a>00701           <span class="keyword">class </span>BaseType = <a class="code" href="structpolybori_1_1internal__tag.html" title="This class marks an internal part of a procedure.">internal_tag</a>&gt;
<a name="l00702"></a>00702 <span class="keyword">class </span><a class="code" href="classCDegStackBase.html">CDegStackBase</a>;
<a name="l00703"></a>00703 
<a name="l00704"></a>00704 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> BlockProperty, <span class="keyword">class</span> BaseType&gt;
<a name="l00705"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html">00705</a> <span class="keyword">class </span><a class="code" href="classCDegStackBase.html">CDegStackBase</a>&lt;NavigatorType, <a class="code" href="structpolybori_1_1valid__tag.html" title="This class shows, whether a property of an order is valid.">valid_tag</a>, BlockProperty, BaseType&gt;:
<a name="l00706"></a>00706   <span class="keyword">public</span> CDegStackCore&lt;NavigatorType, BlockProperty, 
<a name="l00707"></a>00707                        std::forward_iterator_tag, BaseType&gt; {
<a name="l00708"></a>00708 
<a name="l00709"></a>00709 <span class="keyword">public</span>:
<a name="l00710"></a>00710   <span class="keyword">typedef</span> CDegStackCore&lt;NavigatorType, BlockProperty, 
<a name="l00711"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#eb13b18565bda42efc9f27c9b24bae96">00711</a>                         std::forward_iterator_tag, BaseType&gt; base;
<a name="l00712"></a>00712 
<a name="l00713"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#a6964168b8b044f3b729b2adc9c99a9d">00713</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::size_type size_type;
<a name="l00714"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#bc2dd545cad04674d71f2a7d3c3b48a1">00714</a>   <span class="keyword">typedef</span> std::greater&lt;size_type&gt; size_comparer;
<a name="l00715"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#c718780ea8aee87abb4d005d2eff3c56">00715</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::manager_type manager_type;
<a name="l00716"></a>00716 
<a name="l00717"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#781244b5c763396fbaae5f0033125755">00717</a>   <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#781244b5c763396fbaae5f0033125755">CDegStackBase</a>(): base() {}
<a name="l00718"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#a8822bdda195be2f34a22d4147f42918">00718</a>   <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#a8822bdda195be2f34a22d4147f42918">CDegStackBase</a>(NavigatorType navi, <span class="keyword">const</span> manager_type&amp; mgr): base(navi, mgr) {}
<a name="l00719"></a>00719 
<a name="l00720"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#9fa98ae7bb5340aef1e145b467ab2ae0">00720</a>   <a class="code" href="structpolybori_1_1integral__constant.html">integral_constant&lt;bool, false&gt;</a> takeLast;
<a name="l00721"></a>00721 
<a name="l00722"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#ff0080ee686054b8dba2240325cc178d">00722</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#ff0080ee686054b8dba2240325cc178d">proximate</a>() { base::next(); }
<a name="l00723"></a>00723 
<a name="l00724"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#c611805ae01e95bd1bc2db4214cc6ab2">00724</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#c611805ae01e95bd1bc2db4214cc6ab2">incrementBranch</a>() { base::incrementThen(); }
<a name="l00725"></a>00725 
<a name="l00726"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#4e1013c0b0bdc3eb6053c60d827d2a42">00726</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01valid__tag_00_01BlockProperty_00_01BaseType_01_4.html#4e1013c0b0bdc3eb6053c60d827d2a42">maxOnThen</a>(size_type deg)<span class="keyword"> const </span>{
<a name="l00727"></a>00727     <span class="keywordflow">return</span> (base::getDeg(base::top().thenBranch()) + 1 == deg);
<a name="l00728"></a>00728   }
<a name="l00729"></a>00729 
<a name="l00730"></a>00730 };
<a name="l00731"></a>00731 
<a name="l00732"></a>00732 
<a name="l00733"></a>00733 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> BlockProperty, <span class="keyword">class</span> BaseType&gt;
<a name="l00734"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html">00734</a> <span class="keyword">class </span><a class="code" href="classCDegStackBase.html">CDegStackBase</a>&lt;NavigatorType, <a class="code" href="structpolybori_1_1invalid__tag.html" title="This class shows, whether a property of an order is invalid.">invalid_tag</a>, BlockProperty, BaseType&gt;:
<a name="l00735"></a>00735     <span class="keyword">public</span> CDegStackCore&lt;NavigatorType, BlockProperty, 
<a name="l00736"></a>00736                          std::bidirectional_iterator_tag, BaseType&gt; {
<a name="l00737"></a>00737 
<a name="l00738"></a>00738 <span class="keyword">public</span>:
<a name="l00739"></a>00739   <span class="keyword">typedef</span> CDegStackCore&lt;NavigatorType, BlockProperty, 
<a name="l00740"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#e24e8b6cb4beb945875ee6a6bf22b698">00740</a>                          std::bidirectional_iterator_tag, BaseType&gt; base;
<a name="l00741"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#094067921eb338a50e1a0443c6a99f6f">00741</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::size_type size_type;
<a name="l00742"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#724cde9c31c3ab7b60919c4a3570fcb5">00742</a>   <span class="keyword">typedef</span> std::greater_equal&lt;size_type&gt; size_comparer;
<a name="l00743"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#1f23ff9f13a9f8693c7e6b7596b9eeb1">00743</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::manager_type manager_type;
<a name="l00744"></a>00744 
<a name="l00745"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#10a85fc5dbc60e1a44d4473cfafe6bae">00745</a>   <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#10a85fc5dbc60e1a44d4473cfafe6bae">CDegStackBase</a>(): base() {}
<a name="l00746"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#ec0a47ee67ebc0fdc8d3eb44813c2ca1">00746</a>   <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#ec0a47ee67ebc0fdc8d3eb44813c2ca1">CDegStackBase</a>(NavigatorType navi, <span class="keyword">const</span> manager_type&amp; mgr): base(navi, mgr) {}
<a name="l00747"></a>00747 
<a name="l00748"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#714c803526c77787354cab159b58276d">00748</a>   <a class="code" href="structpolybori_1_1integral__constant.html">integral_constant&lt;bool, true&gt;</a> takeLast;
<a name="l00749"></a>00749 
<a name="l00750"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#08c287f1f6ec453dd7a7e6eafa4e6e84">00750</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#08c287f1f6ec453dd7a7e6eafa4e6e84">proximate</a>() { base::previous(); }
<a name="l00751"></a>00751 
<a name="l00752"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#ed880ef6baaf2811fd6c1356dbf3edb7">00752</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#ed880ef6baaf2811fd6c1356dbf3edb7">incrementBranch</a>() { base::incrementValidElse(); }
<a name="l00753"></a>00753 
<a name="l00754"></a><a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#1a8c510ee8e36da9c22fb9f9a0a51601">00754</a>   <span class="keywordtype">bool</span> <a class="code" href="classpolybori_1_1CDegStackBase_3_01NavigatorType_00_01invalid__tag_00_01BlockProperty_00_01BaseType_01_4.html#1a8c510ee8e36da9c22fb9f9a0a51601">maxOnThen</a>(size_type deg)<span class="keyword"> const </span>{
<a name="l00755"></a>00755     <span class="keywordflow">return</span> !(base::getDeg(base::top().elseBranch())  ==  deg);
<a name="l00756"></a>00756   }
<a name="l00757"></a>00757 };
<a name="l00758"></a>00758 
<a name="l00759"></a>00759 
<a name="l00760"></a>00760 <span class="keyword">template</span> &lt;<span class="keyword">class </span>NavigatorType, <span class="keyword">class </span>DescendingProperty, 
<a name="l00761"></a>00761           <span class="keyword">class </span>BlockProperty = invalid_tag, <span class="keyword">class </span>BaseType = internal_tag&gt;
<a name="l00762"></a><a class="code" href="classpolybori_1_1CDegTermStack.html">00762</a> <span class="keyword">class </span><a class="code" href="classpolybori_1_1CDegTermStack.html">CDegTermStack</a>:
<a name="l00763"></a>00763   <span class="keyword">public</span> CDegStackBase&lt;NavigatorType, DescendingProperty, BlockProperty, BaseType&gt; {
<a name="l00764"></a>00764 
<a name="l00765"></a>00765 <span class="keyword">public</span>:
<a name="l00766"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#e7143dd542590912aaafb1858aa0ca6b">00766</a>   <span class="keyword">typedef</span> <a class="code" href="classCDegStackBase.html">CDegStackBase&lt;NavigatorType, DescendingProperty, BlockProperty, BaseType&gt;</a> <a class="code" href="classCDegStackBase.html">base</a>;
<a name="l00767"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#25f5039192b58d6037096f9eb93cfb13">00767</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CDegTermStack.html">CDegTermStack&lt;NavigatorType, DescendingProperty, BlockProperty, BaseType&gt;</a> <span class="keyword">self</span>;
<a name="l00768"></a>00768 
<a name="l00769"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#11e8d7d503cab0c1254609b1e2f2ffb6">00769</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::navigator navigator;
<a name="l00770"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#524116115c5645cbfc38e689d0b7378a">00770</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> navigator::size_type size_type;
<a name="l00771"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#985a0b11e5818fdc3a5e32a740dcb6fd">00771</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::manager_type manager_type;
<a name="l00772"></a>00772 
<a name="l00773"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#ac65bed623866c8abb98724f5395c68d">00773</a>   <a class="code" href="classpolybori_1_1CDegTermStack.html#ac65bed623866c8abb98724f5395c68d">CDegTermStack</a>(): <a class="code" href="classCDegStackBase.html">base</a>(), m_start() {}
<a name="l00774"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#27a1d3e0e9341d812800be2967c447e3">00774</a>   <a class="code" href="classpolybori_1_1CDegTermStack.html">CDegTermStack</a>(navigator navi, <span class="keyword">const</span> manager_type&amp; mgr):
<a name="l00775"></a>00775     <a class="code" href="classCDegStackBase.html">base</a>(navi, mgr), m_start(navi) {}
<a name="l00776"></a>00776 
<a name="l00777"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#38a183acd50b47fe37c8b1794043a425">00777</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#38a183acd50b47fe37c8b1794043a425">init</a>() {
<a name="l00778"></a>00778     followDeg();
<a name="l00779"></a>00779     base::terminate();    
<a name="l00780"></a>00780   }
<a name="l00781"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#9fd84ac95c59ffe1ba82ed53199bf09b">00781</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#9fd84ac95c59ffe1ba82ed53199bf09b">followDeg</a>() {
<a name="l00782"></a>00782     assert(!base::empty());
<a name="l00783"></a>00783     
<a name="l00784"></a>00784     size_type deg = base::getDeg(base::top());
<a name="l00785"></a>00785 
<a name="l00786"></a>00786     <span class="keywordflow">while</span> (deg &gt; 0) {
<a name="l00787"></a>00787 
<a name="l00788"></a>00788       <span class="keywordflow">if</span> ( base::maxOnThen(deg) ) {
<a name="l00789"></a>00789         --deg;
<a name="l00790"></a>00790         base::incrementThen();
<a name="l00791"></a>00791       }
<a name="l00792"></a>00792       <span class="keywordflow">else</span>
<a name="l00793"></a>00793         base::incrementElse();
<a name="l00794"></a>00794         
<a name="l00795"></a>00795     }
<a name="l00796"></a>00796   }
<a name="l00797"></a>00797 
<a name="l00798"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#10a9f7567bf7951570258edc834b4b32">00798</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#10a9f7567bf7951570258edc834b4b32">increment</a>() {
<a name="l00799"></a>00799     assert(!base::empty());
<a name="l00800"></a>00800     <span class="keywordflow">if</span> (base::markedOne()) {
<a name="l00801"></a>00801       base::clearOne();
<a name="l00802"></a>00802       <span class="keywordflow">return</span>;
<a name="l00803"></a>00803     }
<a name="l00804"></a>00804 
<a name="l00805"></a>00805 
<a name="l00806"></a>00806     size_type upperbound = base::size();
<a name="l00807"></a>00807     degTerm();
<a name="l00808"></a>00808 
<a name="l00809"></a>00809     <span class="keywordflow">if</span>(base::empty()) {
<a name="l00810"></a>00810       restart();
<a name="l00811"></a>00811       findTerm(upperbound);
<a name="l00812"></a>00812     }
<a name="l00813"></a>00813     <span class="keywordflow">if</span>(!base::empty())
<a name="l00814"></a>00814       base::terminate();
<a name="l00815"></a>00815   }
<a name="l00816"></a>00816 
<a name="l00817"></a>00817 
<a name="l00818"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#c6a16135609c6220154c04c5a72f6690">00818</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#c6a16135609c6220154c04c5a72f6690">degTerm</a>() {
<a name="l00819"></a>00819     size_type size = base::size() + 1;
<a name="l00820"></a>00820 
<a name="l00821"></a>00821     assert(!base::isConstant());
<a name="l00822"></a>00822     <span class="keywordtype">bool</span> doloop;
<a name="l00823"></a>00823     <span class="keywordflow">do</span> {
<a name="l00824"></a>00824       assert(!base::empty());
<a name="l00825"></a>00825       base::proximate();
<a name="l00826"></a>00826 
<a name="l00827"></a>00827       <span class="keywordflow">if</span> (base::atBegin()) 
<a name="l00828"></a>00828         <span class="keywordflow">return</span>;
<a name="l00829"></a>00829 
<a name="l00830"></a>00830         <span class="keywordflow">while</span> (!base::atEnd() &amp;&amp; (base::size() &lt; size) ) {
<a name="l00831"></a>00831           base::incrementBranch();
<a name="l00832"></a>00832         }
<a name="l00833"></a>00833         base::gotoEnd();
<a name="l00834"></a>00834 
<a name="l00835"></a>00835         <span class="keywordflow">if</span> (doloop = (base::isInvalid() || (base::size() != size)) )
<a name="l00836"></a>00836           base::decrementNode();
<a name="l00837"></a>00837 
<a name="l00838"></a>00838     } <span class="keywordflow">while</span> (!base::empty() &amp;&amp; doloop);
<a name="l00839"></a>00839 
<a name="l00840"></a>00840   }
<a name="l00841"></a>00841 
<a name="l00842"></a>00842  
<a name="l00843"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#94823da2784004fb08fcfa774875967e">00843</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#94823da2784004fb08fcfa774875967e">decrement</a>() {}
<a name="l00844"></a>00844 
<a name="l00845"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#90247daa6e42d8c802dfcb732bcff1ee">00845</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#90247daa6e42d8c802dfcb732bcff1ee">findTerm</a>(size_type upperbound) {
<a name="l00846"></a>00846     assert(!base::empty());
<a name="l00847"></a>00847 
<a name="l00848"></a>00848     <span class="keyword">typename</span> base::purestack_type max_elt, current(base::top());
<a name="l00849"></a>00849     base::decrementNode();
<a name="l00850"></a>00850 
<a name="l00851"></a>00851     <span class="keyword">typename</span> base::size_comparer comp;
<a name="l00852"></a>00852 
<a name="l00853"></a>00853     <span class="keywordflow">while</span> (!current.empty() &amp;&amp; 
<a name="l00854"></a>00854            (base::takeLast() || (max_elt.size() != upperbound)) ) {
<a name="l00855"></a>00855       
<a name="l00856"></a>00856       <span class="keywordflow">while</span> (!base::atEnd(current.top()) &amp;&amp; (current.size() &lt; upperbound) )
<a name="l00857"></a>00857         current.incrementThen();
<a name="l00858"></a>00858       
<a name="l00859"></a>00859       <span class="keywordflow">if</span> (base::validEnd(current.top())) {
<a name="l00860"></a>00860         <span class="keywordflow">if</span> (comp(current.size(), max_elt.size()))
<a name="l00861"></a>00861           max_elt = current;
<a name="l00862"></a>00862         current.decrementNode();
<a name="l00863"></a>00863       }
<a name="l00864"></a>00864       current.next();
<a name="l00865"></a>00865     }
<a name="l00866"></a>00866     base::append(max_elt);
<a name="l00867"></a>00867 
<a name="l00868"></a>00868     <span class="keywordflow">if</span>(max_elt.empty())
<a name="l00869"></a>00869       base::invalidate();
<a name="l00870"></a>00870   }
<a name="l00871"></a>00871 
<a name="l00872"></a><a class="code" href="classpolybori_1_1CDegTermStack.html#bd7dfebe3ae7b1ef3bb1bd1a5cb88f8e">00872</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CDegTermStack.html#bd7dfebe3ae7b1ef3bb1bd1a5cb88f8e">restart</a>() { base::restart(m_start); }
<a name="l00873"></a>00873 
<a name="l00874"></a>00874 <span class="keyword">private</span>:
<a name="l00875"></a>00875   navigator m_start;
<a name="l00876"></a>00876 };
<a name="l00877"></a>00877 
<a name="l00878"></a>00878 
<a name="l00879"></a>00879 
<a name="l00881"></a>00881 <span class="keyword">template</span> &lt;<span class="keyword">class</span> NavigatorType, <span class="keyword">class</span> DescendingProperty, <span class="keyword">class</span> BaseType = <span class="keywordtype">int</span>ernal_tag&gt;
<a name="l00882"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html">00882</a> <span class="keyword">class </span><a class="code" href="classpolybori_1_1CBlockTermStack.html">CBlockTermStack</a>:
<a name="l00883"></a>00883   <span class="keyword">public</span> <a class="code" href="classpolybori_1_1CDegTermStack.html">CDegTermStack</a>&lt;NavigatorType, DescendingProperty, valid_tag, BaseType&gt; {
<a name="l00884"></a>00884 
<a name="l00885"></a>00885 <span class="keyword">public</span>:
<a name="l00886"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#cde5f85c6e4d2889c9c451ec252b804d">00886</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CDegTermStack.html">CDegTermStack&lt;NavigatorType, DescendingProperty, valid_tag, BaseType&gt;</a> <a class="code" href="classpolybori_1_1CDegTermStack.html">base</a>; 
<a name="l00887"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#5c2ca16495f27d1d35ef8fab8892e40c">00887</a>   <span class="keyword">typedef</span> <a class="code" href="classpolybori_1_1CBlockTermStack.html">CBlockTermStack&lt;NavigatorType, DescendingProperty, BaseType&gt;</a> <span class="keyword">self</span>;
<a name="l00888"></a>00888 
<a name="l00889"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#435a7fcd48e9bfd3b80752ec2f441450">00889</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::navigator navigator;
<a name="l00890"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#f536d191ff1a2cef43bdf31f232e8d67">00890</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> navigator::size_type size_type;
<a name="l00891"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#e8157e6b73f125236b6dfe230f54fcaa">00891</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">navigator::idx_type</a> <a class="code" href="namespacepolybori_1_1groebner.html#ef37a95e97afbd561cc4c5f84d660765">idx_type</a>;
<a name="l00892"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#ad12f5a92d788e513c44c35f9472c8a4">00892</a>   <span class="keyword">typedef</span> <span class="keyword">typename</span> base::manager_type manager_type;
<a name="l00893"></a>00893 
<a name="l00895"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#001e45caa2903cb331247f3bcce285d6">00895</a>   <a class="code" href="classpolybori_1_1CBlockTermStack.html">CBlockTermStack</a>(navigator navi, <span class="keyword">const</span> manager_type&amp; mgr):
<a name="l00896"></a>00896     <a class="code" href="classpolybori_1_1CDegTermStack.html">base</a>(navi, mgr) { }
<a name="l00897"></a>00897 
<a name="l00899"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#9a7fd394c9da50d2c0b89451f3f4db67">00899</a>   <a class="code" href="classpolybori_1_1CBlockTermStack.html#9a7fd394c9da50d2c0b89451f3f4db67" title="Default Constructor.">CBlockTermStack</a>(): <a class="code" href="classpolybori_1_1CDegTermStack.html">base</a>() {}
<a name="l00900"></a>00900 
<a name="l00901"></a>00901 
<a name="l00902"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#6b77cb8825612bb87820d65bc2c4df60">00902</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CBlockTermStack.html#6b77cb8825612bb87820d65bc2c4df60">init</a>() {
<a name="l00903"></a>00903     assert(!base::empty());
<a name="l00904"></a>00904     followDeg();
<a name="l00905"></a>00905     base::terminate();
<a name="l00906"></a>00906   }
<a name="l00907"></a>00907 
<a name="l00908"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#9d12ffd85a10d2eda3f3df4181d43ea4">00908</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CBlockTermStack.html#9d12ffd85a10d2eda3f3df4181d43ea4">increment</a>() {
<a name="l00909"></a>00909     assert(!base::empty());
<a name="l00910"></a>00910 
<a name="l00911"></a>00911     <span class="keywordflow">if</span> (base::markedOne()) {
<a name="l00912"></a>00912       base::clearOne();
<a name="l00913"></a>00913       <span class="keywordflow">return</span>;
<a name="l00914"></a>00914     }
<a name="l00915"></a>00915 
<a name="l00916"></a>00916     navigator current = base::top(); 
<a name="l00917"></a>00917     <span class="keywordflow">while</span> (*current &lt; base::block.min())
<a name="l00918"></a>00918       --base::block;
<a name="l00919"></a>00919 
<a name="l00920"></a>00920     incrementBlock();
<a name="l00921"></a>00921     <span class="keywordflow">while</span> ( (base::size() &gt; 1 ) &amp;&amp; base::isInvalid()  ) {
<a name="l00922"></a>00922       --base::block;
<a name="l00923"></a>00923       base::decrementNode();
<a name="l00924"></a>00924       incrementBlock();
<a name="l00925"></a>00925     }
<a name="l00926"></a>00926 
<a name="l00927"></a>00927     followDeg();
<a name="l00928"></a>00928 
<a name="l00929"></a>00929     assert(!base::empty());
<a name="l00930"></a>00930     base::terminate();
<a name="l00931"></a>00931   }
<a name="l00932"></a>00932 
<a name="l00933"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#244a8d42bd63e69753aa351afdd68527">00933</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CBlockTermStack.html#244a8d42bd63e69753aa351afdd68527">followBlockDeg</a>() { base::followDeg(); }
<a name="l00934"></a>00934 
<a name="l00935"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#2033d29c0ad5da7529dc634277862378">00935</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CBlockTermStack.html#2033d29c0ad5da7529dc634277862378">followDeg</a>() {
<a name="l00936"></a>00936     assert(base::top().isValid());
<a name="l00937"></a>00937 
<a name="l00938"></a>00938     <span class="keywordflow">if</span> (!base::isConstant() ) 
<a name="l00939"></a>00939       followBlockDeg();
<a name="l00940"></a>00940 
<a name="l00941"></a>00941     <span class="keywordflow">while</span> (!base::isConstant()  ) {
<a name="l00942"></a>00942       ++base::block;
<a name="l00943"></a>00943       followBlockDeg();
<a name="l00944"></a>00944     }
<a name="l00945"></a>00945   }
<a name="l00946"></a>00946 
<a name="l00947"></a><a class="code" href="classpolybori_1_1CBlockTermStack.html#60cf2ba9169014d44c8fa37b3845991f">00947</a>   <span class="keywordtype">void</span> <a class="code" href="classpolybori_1_1CBlockTermStack.html#60cf2ba9169014d44c8fa37b3845991f">incrementBlock</a>() {
<a name="l00948"></a>00948 
<a name="l00949"></a>00949     assert(!base::empty());
<a name="l00950"></a>00950     size_type size = base::size() + 1;
<a name="l00951"></a>00951     
<a name="l00952"></a>00952     <span class="keywordflow">if</span> (base::index() &lt; base::block.min()) {
<a name="l00953"></a>00953       base::invalidate();
<a name="l00954"></a>00954       <span class="keywordflow">return</span>;
<a name="l00955"></a>00955     }
<a name="l00956"></a>00956     
<a name="l00957"></a>00957     base::degTerm();
<a name="l00958"></a>00958     
<a name="l00959"></a>00959     <span class="keywordflow">if</span> (base::size() == size) <span class="keywordflow">return</span>;
<a name="l00960"></a>00960     
<a name="l00961"></a>00961     <span class="keywordflow">if</span> (base::empty())
<a name="l00962"></a>00962       base::restart();
<a name="l00963"></a>00963     <span class="keywordflow">else</span> {
<a name="l00964"></a>00964       assert(base::index() &lt; base::block.min());
<a name="l00965"></a>00965       base::incrementThen();
<a name="l00966"></a>00966     }
<a name="l00967"></a>00967     
<a name="l00968"></a>00968     <span class="keywordflow">while</span> (!base::isConstant() &amp;&amp; (base::index() &lt;  base::block.min()))
<a name="l00969"></a>00969       base::incrementElse();
<a name="l00970"></a>00970     
<a name="l00971"></a>00971     assert(size &gt; base::size()); 
<a name="l00972"></a>00972     
<a name="l00973"></a>00973     base::findTerm(size - base::size());
<a name="l00974"></a>00974     base::gotoEnd();
<a name="l00975"></a>00975   }
<a name="l00976"></a>00976 };
<a name="l00977"></a>00977 
<a name="l00978"></a>00978 <a class="code" href="pbori__defs_8h.html#faf094fde6c1a7f1aad18bcb455f3b06" title="Finish project&amp;#39;s namespace.">END_NAMESPACE_PBORI</a>
<a name="l00979"></a>00979 
<a name="l00980"></a>00980 <span class="preprocessor">#endif</span>
</pre></div></div>
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