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<div class="title">assumptions.cpp</div> </div>
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<a href="assumptions_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************/</span><span class="comment"></span>
<a name="l00002"></a>00002 <span class="comment">/*!</span>
<a name="l00003"></a>00003 <span class="comment"> *\file assumptions.cpp</span>
<a name="l00004"></a>00004 <span class="comment"> *\brief Implementation of class Assumptions</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Author: Clark Barrett</span>
<a name="l00007"></a>00007 <span class="comment"> *</span>
<a name="l00008"></a>00008 <span class="comment"> * Created: Thu Jan 5 06:25:52 2006</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * <hr></span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> * License to use, copy, modify, sell and/or distribute this software</span>
<a name="l00013"></a>00013 <span class="comment"> * and its documentation for any purpose is hereby granted without</span>
<a name="l00014"></a>00014 <span class="comment"> * royalty, subject to the terms and conditions defined in the \ref</span>
<a name="l00015"></a>00015 <span class="comment"> * LICENSE file provided with this distribution.</span>
<a name="l00016"></a>00016 <span class="comment"> * </span>
<a name="l00017"></a>00017 <span class="comment"> * <hr></span>
<a name="l00018"></a>00018 <span class="comment"> * </span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020 <span class="comment">/*****************************************************************************/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="preprocessor">#include <algorithm></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "<a class="code" href="assumptions_8h.html">assumptions.h</a>"</span>
<a name="l00025"></a>00025
<a name="l00026"></a>00026
<a name="l00027"></a>00027 <span class="keyword">using namespace </span>std;
<a name="l00028"></a>00028 <span class="keyword">using namespace </span>CVC3;
<a name="l00029"></a>00029
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a> Assumptions::s_empty;
<a name="l00032"></a>00032
<a name="l00033"></a>00033
<a name="l00034"></a><a class="code" href="classCVC3_1_1Assumptions.html#a9d4f8e2ab0bee667188a42f1e0ab1a98">00034</a> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& Assumptions::findTheorem(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e)<span class="keyword"> const </span>{
<a name="l00035"></a>00035 <span class="keyword">static</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> null;
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="comment">// TRACE_MSG("assumptions", "findTheorem");</span>
<a name="l00038"></a>00038
<a name="l00039"></a>00039 <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t = find(e);
<a name="l00040"></a>00040 <span class="keywordflow">if</span> (!t.<a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333">isNull</a>()) <span class="keywordflow">return</span> t;
<a name="l00041"></a>00041 <span class="comment">// recurse</span>
<a name="l00042"></a>00042 <span class="keyword">const</span> vector<Theorem>::const_iterator aend = d_vector.end();
<a name="l00043"></a>00043 <span class="keywordflow">for</span> (vector<Theorem>::const_iterator iter2 = d_vector.begin();
<a name="l00044"></a>00044 iter2 != aend; ++iter2) {
<a name="l00045"></a>00045 <span class="keywordflow">if</span> (iter2->isRefl() || !iter2->isFlagged()) {
<a name="l00046"></a>00046 <span class="keywordflow">if</span> (<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(*iter2, e) == 0) <span class="keywordflow">return</span> *iter2;
<a name="l00047"></a>00047 <span class="keywordflow">if</span> (!iter2->isAssump()) {
<a name="l00048"></a>00048 <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t = iter2-><a class="code" href="classCVC3_1_1Theorem.html#a5e9ab00a613df15cc02f55edb55a67b3">getAssumptionsRef</a>().<a class="code" href="classCVC3_1_1Assumptions.html#a9d4f8e2ab0bee667188a42f1e0ab1a98">findTheorem</a>(e);
<a name="l00049"></a>00049 <span class="keywordflow">if</span> (!t.<a class="code" href="classCVC3_1_1Theorem.html#afc6fdb0507eb3669e28d9be5ed0bd333">isNull</a>()) <span class="keywordflow">return</span> t;
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051 <span class="keywordflow">if</span> (!iter2->isRefl()) iter2-><a class="code" href="classCVC3_1_1Theorem.html#af83d6b4d71bfb558296a1c296a69c3d7" title="Set the flag attribute.">setFlag</a>();
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054 <span class="keywordflow">return</span> null; <span class="comment">// not found</span>
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056
<a name="l00057"></a>00057
<a name="l00058"></a><a class="code" href="classCVC3_1_1Assumptions.html#a2fd592d43e21629722887fe7b812b8b6">00058</a> <span class="keywordtype">bool</span> Assumptions::findExpr(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& a,
<a name="l00059"></a>00059 <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e, vector<Theorem>& gamma) {
<a name="l00060"></a>00060 <span class="keywordtype">bool</span> found = <span class="keyword">false</span>;
<a name="l00061"></a>00061 <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions_1_1iterator.html" title="Iterator for the Assumptions: points to class Theorem.">Assumptions::iterator</a> aend = a.<a class="code" href="classCVC3_1_1Assumptions.html#afc875bbe97e4e2d74a2cdc824f783bfb">end</a>();
<a name="l00062"></a>00062 <a class="code" href="classCVC3_1_1Assumptions_1_1iterator.html" title="Iterator for the Assumptions: points to class Theorem.">Assumptions::iterator</a> iter = a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>();
<a name="l00063"></a>00063 <span class="keywordflow">for</span> (; iter != aend; ++iter) {
<a name="l00064"></a>00064 <span class="keywordflow">if</span> (iter->isRefl()) <span class="keywordflow">continue</span>;
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (iter->isFlagged()) {
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (iter->getCachedValue()) found = <span class="keyword">true</span>;
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068 <span class="keywordflow">else</span> {
<a name="l00069"></a>00069 <span class="keywordflow">if</span> ((iter->getExpr() == e) ||
<a name="l00070"></a>00070 (!iter->isAssump() &&
<a name="l00071"></a>00071 findExpr(iter->getAssumptionsRef(), e, gamma))) {
<a name="l00072"></a>00072 found = <span class="keyword">true</span>;
<a name="l00073"></a>00073 iter->setCachedValue(<span class="keyword">true</span>);
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 <span class="keywordflow">else</span> iter->setCachedValue(<span class="keyword">false</span>);
<a name="l00076"></a>00076
<a name="l00077"></a>00077 iter->setFlag();
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="keywordflow">if</span> (found) {
<a name="l00082"></a>00082 <span class="keywordflow">for</span> (iter = a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>(); iter != aend; ++iter) {
<a name="l00083"></a>00083 <span class="keywordflow">if</span> (iter->isRefl()) <span class="keywordflow">continue</span>;
<a name="l00084"></a>00084 <span class="keywordflow">if</span> (!iter->getCachedValue()) gamma.push_back(*iter);
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="keywordflow">return</span> found;
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091
<a name="l00092"></a><a class="code" href="classCVC3_1_1Assumptions.html#a2aee19965a0ec1adcd927f7c40b7064f">00092</a> <span class="keywordtype">bool</span> Assumptions::findExprs(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& a, <span class="keyword">const</span> vector<Expr>& es,
<a name="l00093"></a>00093 vector<Theorem>& gamma) {
<a name="l00094"></a>00094 <span class="keywordtype">bool</span> found = <span class="keyword">false</span>;
<a name="l00095"></a>00095 <span class="keyword">const</span> vector<Expr>::const_iterator esbegin = es.begin();
<a name="l00096"></a>00096 <span class="keyword">const</span> vector<Expr>::const_iterator esend = es.end();
<a name="l00097"></a>00097 <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions_1_1iterator.html" title="Iterator for the Assumptions: points to class Theorem.">Assumptions::iterator</a> aend = a.<a class="code" href="classCVC3_1_1Assumptions.html#afc875bbe97e4e2d74a2cdc824f783bfb">end</a>();
<a name="l00098"></a>00098 <a class="code" href="classCVC3_1_1Assumptions_1_1iterator.html" title="Iterator for the Assumptions: points to class Theorem.">Assumptions::iterator</a> iter = a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>();
<a name="l00099"></a>00099 <span class="keywordflow">for</span> (; iter != aend; ++iter) {
<a name="l00100"></a>00100 <span class="keywordflow">if</span> (iter->isRefl()) <span class="keywordflow">continue</span>;
<a name="l00101"></a>00101 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (iter->isFlagged()) {
<a name="l00102"></a>00102 <span class="keywordflow">if</span> (iter->getCachedValue()) found = <span class="keyword">true</span>;
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104 <span class="keywordflow">else</span> {
<a name="l00105"></a>00105 <span class="comment">// switch to binary search below? (sort es first)</span>
<a name="l00106"></a>00106 <span class="keywordflow">if</span> ((::find(esbegin, esend, iter->getExpr()) != esend) ||
<a name="l00107"></a>00107 (!iter->isAssump() &&
<a name="l00108"></a>00108 findExprs(iter->getAssumptionsRef(), es, gamma))) {
<a name="l00109"></a>00109 found = <span class="keyword">true</span>;
<a name="l00110"></a>00110 iter->setCachedValue(<span class="keyword">true</span>);
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112 <span class="keywordflow">else</span> iter->setCachedValue(<span class="keyword">false</span>);
<a name="l00113"></a>00113
<a name="l00114"></a>00114 iter->setFlag();
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 }
<a name="l00117"></a>00117 <span class="keywordflow">if</span> (found) {
<a name="l00118"></a>00118 <span class="keywordflow">for</span> (iter = a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>(); iter != aend; ++iter) {
<a name="l00119"></a>00119 <span class="keywordflow">if</span> (iter->isRefl()) <span class="keywordflow">continue</span>;
<a name="l00120"></a>00120 <span class="keywordflow">if</span> (!iter->getCachedValue()) gamma.push_back(*iter);
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 <span class="keywordflow">return</span> found;
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00126"></a>00126
<a name="l00127"></a><a class="code" href="classCVC3_1_1Assumptions.html#a816544e449b0c1d46513933a6e4dad30">00127</a> Assumptions::Assumptions(<span class="keyword">const</span> vector<Theorem>& v) {
<a name="l00128"></a>00128 <span class="keywordflow">if</span> (v.empty()) <span class="keywordflow">return</span>;
<a name="l00129"></a>00129 d_vector.reserve(v.size());
<a name="l00130"></a>00130
<a name="l00131"></a>00131 <span class="keyword">const</span> vector<Theorem>::const_iterator iend = v.end();
<a name="l00132"></a>00132 vector<Theorem>::const_iterator i = v.begin();
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="keywordflow">for</span> (;i != iend; ++i) {
<a name="l00135"></a>00135 <span class="keywordflow">if</span> ((!i->getAssumptionsRef().empty())) {
<a name="l00136"></a>00136 d_vector.push_back(*i);
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 }
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="keywordflow">if</span> (d_vector.size() <= 1) <span class="keywordflow">return</span>;
<a name="l00141"></a>00141 sort(d_vector.begin(), d_vector.end());
<a name="l00142"></a>00142 vector<Theorem>::iterator newend =
<a name="l00143"></a>00143 unique(d_vector.begin(), d_vector.end(), <a class="code" href="search__fast_8cpp.html#a262e92a64449205cbd952a704be68952">Theorem::TheoremEq</a>);
<a name="l00144"></a>00144
<a name="l00145"></a>00145 d_vector.resize(newend - d_vector.begin());
<a name="l00146"></a>00146 }
<a name="l00147"></a>00147
<a name="l00148"></a>00148
<a name="l00149"></a><a class="code" href="classCVC3_1_1Assumptions.html#a98b093589b515e8c2e3e571f37a029c5">00149</a> Assumptions::Assumptions(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t2)
<a name="l00150"></a>00150 {
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keywordflow">if</span> (!t1.<a class="code" href="classCVC3_1_1Theorem.html#a5e9ab00a613df15cc02f55edb55a67b3">getAssumptionsRef</a>().<a class="code" href="classCVC3_1_1Assumptions.html#a37da34b71944a11667d6af0fbd45651b">empty</a>()) {
<a name="l00153"></a>00153 <span class="keywordflow">if</span> (!t2.<a class="code" href="classCVC3_1_1Theorem.html#a5e9ab00a613df15cc02f55edb55a67b3">getAssumptionsRef</a>().<a class="code" href="classCVC3_1_1Assumptions.html#a37da34b71944a11667d6af0fbd45651b">empty</a>()) {
<a name="l00154"></a>00154 <span class="keywordflow">switch</span>(<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t1, t2)) {
<a name="l00155"></a>00155 <span class="keywordflow">case</span> -1: <span class="comment">// t1 < t2:</span>
<a name="l00156"></a>00156 d_vector.push_back(t1);
<a name="l00157"></a>00157 d_vector.push_back(t2);
<a name="l00158"></a>00158 <span class="keywordflow">break</span>;
<a name="l00159"></a>00159 <span class="keywordflow">case</span> 0: <span class="comment">// t1 == t2:</span>
<a name="l00160"></a>00160 d_vector.push_back(t1);
<a name="l00161"></a>00161 <span class="keywordflow">break</span>;
<a name="l00162"></a>00162 <span class="keywordflow">case</span> 1: <span class="comment">// t1 > t2:</span>
<a name="l00163"></a>00163 d_vector.push_back(t2);
<a name="l00164"></a>00164 d_vector.push_back(t1);
<a name="l00165"></a>00165 <span class="keywordflow">break</span>;
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167 } <span class="keywordflow">else</span> d_vector.push_back(t1);
<a name="l00168"></a>00168 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!t2.<a class="code" href="classCVC3_1_1Theorem.html#a5e9ab00a613df15cc02f55edb55a67b3">getAssumptionsRef</a>().<a class="code" href="classCVC3_1_1Assumptions.html#a37da34b71944a11667d6af0fbd45651b">empty</a>()) {
<a name="l00169"></a>00169 d_vector.push_back(t2);
<a name="l00170"></a>00170 }
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="comment">/*</span>
<a name="l00173"></a>00173 <span class="comment"> switch(compare(t1, t2)) {</span>
<a name="l00174"></a>00174 <span class="comment"> case -1: // t1 < t2:</span>
<a name="l00175"></a>00175 <span class="comment"> d_vector.push_back(t1);</span>
<a name="l00176"></a>00176 <span class="comment"> d_vector.push_back(t2);</span>
<a name="l00177"></a>00177 <span class="comment"> break;</span>
<a name="l00178"></a>00178 <span class="comment"> case 0: // t1 == t2:</span>
<a name="l00179"></a>00179 <span class="comment"> d_vector.push_back(t1);</span>
<a name="l00180"></a>00180 <span class="comment"> break;</span>
<a name="l00181"></a>00181 <span class="comment"> case 1: // t1 > t2:</span>
<a name="l00182"></a>00182 <span class="comment"> d_vector.push_back(t2);</span>
<a name="l00183"></a>00183 <span class="comment"> d_vector.push_back(t1);</span>
<a name="l00184"></a>00184 <span class="comment"> break;</span>
<a name="l00185"></a>00185 <span class="comment"> }</span>
<a name="l00186"></a>00186 <span class="comment"> */</span>
<a name="l00187"></a>00187 }
<a name="l00188"></a>00188
<a name="l00189"></a>00189
<a name="l00190"></a><a class="code" href="classCVC3_1_1Assumptions.html#a47ed07591d1311e7fe2a0df8165a2c56">00190</a> <span class="keywordtype">void</span> Assumptions::add(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& t)
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 <span class="keywordflow">if</span> (t.<a class="code" href="classCVC3_1_1Theorem.html#a5e9ab00a613df15cc02f55edb55a67b3">getAssumptionsRef</a>().<a class="code" href="classCVC3_1_1Assumptions.html#a37da34b71944a11667d6af0fbd45651b">empty</a>()) <span class="keywordflow">return</span>;
<a name="l00193"></a>00193 vector<Theorem>::iterator iter, iend = d_vector.end();
<a name="l00194"></a>00194 iter = lower_bound(d_vector.begin(), iend, t);
<a name="l00195"></a>00195 <span class="keywordflow">if</span> (iter != iend && <a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(t, *iter) == 0) <span class="keywordflow">return</span>;
<a name="l00196"></a>00196 d_vector.insert(iter, t);
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198
<a name="l00199"></a>00199
<a name="l00200"></a><a class="code" href="classCVC3_1_1Assumptions.html#a72ece655220d8976c4090006eb7b0b40">00200</a> <span class="keywordtype">void</span> Assumptions::add(<span class="keyword">const</span> std::vector<Theorem>& thms)
<a name="l00201"></a>00201 {
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (thms.size() == 0) <span class="keywordflow">return</span>;
<a name="l00203"></a>00203
<a name="l00204"></a>00204 <a class="code" href="debug_8h.html#a600cb2d68efe7cc413cccbb5714c7016">IF_DEBUG</a>(
<a name="l00205"></a>00205 vector<Theorem>::const_iterator iend = thms.end();
<a name="l00206"></a>00206 <span class="keywordflow">for</span> (vector<Theorem>::const_iterator i = thms.begin();
<a name="l00207"></a>00207 i != iend; ++i) {
<a name="l00208"></a>00208 <span class="keywordflow">if</span> (i+1 == iend) <span class="keywordflow">break</span>;
<a name="l00209"></a>00209 <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(*i, *(i+1)) == -1, <span class="stringliteral">"Expected sorted"</span>);
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211 )
<a name="l00212"></a>00212 vector<Theorem> v;
<a name="l00213"></a>00213 v.reserve(d_vector.size()+thms.size());
<a name="l00214"></a>00214
<a name="l00215"></a>00215 vector<Theorem>::const_iterator i = d_vector.begin();
<a name="l00216"></a>00216 vector<Theorem>::const_iterator j = thms.begin();
<a name="l00217"></a>00217 <span class="keyword">const</span> vector<Theorem>::const_iterator v1end = d_vector.end();
<a name="l00218"></a>00218 <span class="keyword">const</span> vector<Theorem>::const_iterator v2end = thms.end();
<a name="l00219"></a>00219
<a name="l00220"></a>00220 <span class="comment">// merge</span>
<a name="l00221"></a>00221 <span class="keywordflow">while</span> (i != v1end && j != v2end) {
<a name="l00222"></a>00222 <span class="keywordflow">if</span> (j->getAssumptionsRef().empty()) {
<a name="l00223"></a>00223 ++j;
<a name="l00224"></a>00224 <span class="keywordflow">continue</span>;
<a name="l00225"></a>00225 }
<a name="l00226"></a>00226 <span class="keywordflow">switch</span>(<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(*i, *j)) {
<a name="l00227"></a>00227 <span class="keywordflow">case</span> 0:
<a name="l00228"></a>00228 <span class="comment">// copy only 1, drop down to next case</span>
<a name="l00229"></a>00229 ++j;
<a name="l00230"></a>00230 <span class="keywordflow">case</span> -1: <span class="comment">// <</span>
<a name="l00231"></a>00231 v.push_back(*i);
<a name="l00232"></a>00232 ++i;
<a name="l00233"></a>00233 <span class="keywordflow">break</span>;
<a name="l00234"></a>00234 <span class="keywordflow">default</span>: <span class="comment">// ></span>
<a name="l00235"></a>00235 v.push_back(*j);
<a name="l00236"></a>00236 ++j;
<a name="l00237"></a>00237 };
<a name="l00238"></a>00238 }
<a name="l00239"></a>00239 <span class="comment">// Push in the remaining elements</span>
<a name="l00240"></a>00240 <span class="keywordflow">for</span>(; i != v1end; ++i) v.push_back(*i);
<a name="l00241"></a>00241 <span class="keywordflow">for</span>(; j != v2end; ++j) {
<a name="l00242"></a>00242 <span class="keywordflow">if</span> (!j->getAssumptionsRef().empty())
<a name="l00243"></a>00243 v.push_back(*j);
<a name="l00244"></a>00244 }
<a name="l00245"></a>00245
<a name="l00246"></a>00246 d_vector.swap(v);
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248
<a name="l00249"></a>00249
<a name="l00250"></a><a class="code" href="classCVC3_1_1Assumptions.html#ab1e6eca463ad7b98c0c2d2d31bb5d1dd">00250</a> <span class="keywordtype">string</span> Assumptions::toString()<span class="keyword"> const </span>{
<a name="l00251"></a>00251 ostringstream ss;
<a name="l00252"></a>00252 ss << (*this);
<a name="l00253"></a>00253 <span class="keywordflow">return</span> ss.str();
<a name="l00254"></a>00254 }
<a name="l00255"></a>00255
<a name="l00256"></a>00256
<a name="l00257"></a><a class="code" href="classCVC3_1_1Assumptions.html#afefe1857c30806381eb0f8f7fa3d88c4">00257</a> <span class="keywordtype">void</span> Assumptions::print()<span class="keyword"> const</span>
<a name="l00258"></a>00258 <span class="keyword"></span>{
<a name="l00259"></a>00259 cout << toString() << <a class="code" href="group__ExprStream__Manip.html#ga05b0ea7353ec24fa8e7e272d7a7875d8" title="Print the end-of-line.">endl</a>;
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261
<a name="l00262"></a>00262
<a name="l00263"></a><a class="code" href="classCVC3_1_1Assumptions.html#a6acec430850e6bcc418d2c65e164a520">00263</a> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& Assumptions::operator[](<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e)<span class="keyword"> const </span>{
<a name="l00264"></a>00264 <span class="keywordflow">if</span> (!d_vector.empty()) {
<a name="l00265"></a>00265 d_vector.front().<a class="code" href="classCVC3_1_1Theorem.html#a621ab2150eedc0e3b38d34275ac206cd" title="Clear the flag attribute in all the theorems.">clearAllFlags</a>();
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 <span class="keywordflow">return</span> findTheorem(e);
<a name="l00268"></a>00268 }
<a name="l00269"></a>00269
<a name="l00270"></a>00270
<a name="l00271"></a><a class="code" href="classCVC3_1_1Assumptions.html#acafacf59eb34d2e188931a016a87c61b">00271</a> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a>& Assumptions::find(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e)<span class="keyword"> const </span>{
<a name="l00272"></a>00272 <span class="keyword">static</span> <a class="code" href="classCVC3_1_1Theorem.html">Theorem</a> null;
<a name="l00273"></a>00273 <span class="comment">// binary search</span>
<a name="l00274"></a>00274 <span class="keywordtype">int</span> lo = 0;
<a name="l00275"></a>00275 <span class="keywordtype">int</span> hi = d_vector.size() - 1;
<a name="l00276"></a>00276 <span class="keywordtype">int</span> loc;
<a name="l00277"></a>00277 <span class="keywordflow">while</span> (lo <= hi) {
<a name="l00278"></a>00278 loc = (lo + hi) / 2;
<a name="l00279"></a>00279
<a name="l00280"></a>00280 <span class="keywordflow">switch</span> (<a class="code" href="namespaceCVC3.html#ac06ac2fd4db699104b790f98b7abba71">compare</a>(d_vector[loc], e)) {
<a name="l00281"></a>00281 <span class="keywordflow">case</span> 0: <span class="keywordflow">return</span> d_vector[loc];
<a name="l00282"></a>00282 <span class="keywordflow">case</span> -1: <span class="comment">// t < e</span>
<a name="l00283"></a>00283 lo = loc + 1;
<a name="l00284"></a>00284 <span class="keywordflow">break</span>;
<a name="l00285"></a>00285 <span class="keywordflow">default</span>: <span class="comment">// t > e</span>
<a name="l00286"></a>00286 hi = loc - 1;
<a name="l00287"></a>00287 };
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="keywordflow">return</span> null;
<a name="l00290"></a>00290 }
<a name="l00291"></a>00291
<a name="l00292"></a>00292 <span class="comment"></span>
<a name="l00293"></a>00293 <span class="comment">////////////////////////////////////////////////////////////////////</span>
<a name="l00294"></a>00294 <span class="comment"></span><span class="comment">// Assumptions friend methods</span><span class="comment"></span>
<a name="l00295"></a>00295 <span class="comment">////////////////////////////////////////////////////////////////////</span>
<a name="l00296"></a>00296 <span class="comment"></span>
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="keyword">namespace </span>CVC3 {
<a name="l00299"></a>00299
<a name="l00300"></a>00300
<a name="l00301"></a><a class="code" href="namespaceCVC3.html#ae19ef03938a73d86e76f95f5e3d9149c">00301</a> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a> <a class="code" href="namespaceCVC3.html#aacf567dce1c762f957267427472bd959">operator-</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& a, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e) {
<a name="l00302"></a>00302 <span class="keywordflow">if</span> (a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>() != a.<a class="code" href="classCVC3_1_1Assumptions.html#afc875bbe97e4e2d74a2cdc824f783bfb">end</a>()) {
<a name="l00303"></a>00303 a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>()->clearAllFlags();
<a name="l00304"></a>00304 vector<Theorem> gamma;
<a name="l00305"></a>00305 <span class="keywordflow">if</span> (Assumptions::findExpr(a, e, gamma)) <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>(gamma);
<a name="l00306"></a>00306 }
<a name="l00307"></a>00307 <span class="keywordflow">return</span> a;
<a name="l00308"></a>00308 }
<a name="l00309"></a>00309
<a name="l00310"></a>00310
<a name="l00311"></a><a class="code" href="namespaceCVC3.html#adf48e1fdf3a51aa62b5fa0253cce261a">00311</a> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a> <a class="code" href="namespaceCVC3.html#aacf567dce1c762f957267427472bd959">operator-</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>& a, <span class="keyword">const</span> vector<Expr>& es) {
<a name="l00312"></a>00312 <span class="keywordflow">if</span> (!es.empty() && a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>() != a.<a class="code" href="classCVC3_1_1Assumptions.html#afc875bbe97e4e2d74a2cdc824f783bfb">end</a>()) {
<a name="l00313"></a>00313 a.<a class="code" href="classCVC3_1_1Assumptions.html#ac3e7d0e1796c83edf687aac063bdba06">begin</a>()->clearAllFlags();
<a name="l00314"></a>00314 vector<Theorem> gamma;
<a name="l00315"></a>00315 <span class="keywordflow">if</span> (Assumptions::findExprs(a, es, gamma)) <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a>(gamma);
<a name="l00316"></a>00316 }
<a name="l00317"></a>00317 <span class="keywordflow">return</span> a;
<a name="l00318"></a>00318 }
<a name="l00319"></a>00319
<a name="l00320"></a>00320
<a name="l00321"></a><a class="code" href="namespaceCVC3.html#a2a19d179ac1730ec456a78588ea097e4">00321</a> ostream& <a class="code" href="namespaceCVC3.html#a6b7e38d3c97da1e91e12a6c9555b8163">operator<<</a>(ostream& os, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Assumptions.html">Assumptions</a> &assump) {
<a name="l00322"></a>00322 vector<Theorem>::const_iterator i = assump.<a class="code" href="classCVC3_1_1Assumptions.html#a510d7d883844766ec1fd9003bbf6d66c">d_vector</a>.begin();
<a name="l00323"></a>00323 <span class="keyword">const</span> vector<Theorem>::const_iterator iend = assump.<a class="code" href="classCVC3_1_1Assumptions.html#a510d7d883844766ec1fd9003bbf6d66c">d_vector</a>.end();
<a name="l00324"></a>00324 <span class="keywordflow">if</span>(i != iend) { os << i->getExpr(); i++; }
<a name="l00325"></a>00325 <span class="keywordflow">for</span>(; i != iend; i++) os << <span class="stringliteral">",\n "</span> << i->getExpr();
<a name="l00326"></a>00326 <span class="keywordflow">return</span> os;
<a name="l00327"></a>00327 }
<a name="l00328"></a>00328
<a name="l00329"></a>00329
<a name="l00330"></a>00330 } <span class="comment">// end of namespace CVC3</span>
</pre></div></div>
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