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<h1>pbori_routines_hash.h</h1><a href="pbori__routines__hash_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="l00048"></a>00048 <span class="comment"></span><span class="comment">//*****************************************************************************</span>
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="preprocessor">#ifndef pbori_routines_hash_h_</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span><span class="preprocessor">#define pbori_routines_hash_h_</span>
<a name="l00052"></a>00052 <span class="preprocessor"></span><span class="comment">// include basic definitions</span>
<a name="l00053"></a>00053 <span class="preprocessor">#include "<a class="code" href="pbori__defs_8h.html">pbori_defs.h</a>"</span>
<a name="l00054"></a>00054 <span class="preprocessor">#include <boost/functional/hash.hpp></span>
<a name="l00055"></a>00055
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <a class="code" href="pbori__defs_8h.html#6ae360a591580558f31b6157ee792a10" title="Start project&#39;s namespace.">BEGIN_NAMESPACE_PBORI</a>
<a name="l00058"></a>00058
<a name="l00059"></a>00059
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keyword">template</span> <<span class="keyword">class</span> HashType, <span class="keyword">class</span> NaviType>
<a name="l00062"></a>00062 <span class="keywordtype">void</span>
<a name="l00063"></a><a class="code" href="namespacepolybori.html#f3ca38c9ee70d41e5c065fbaa14d903d">00063</a> <a class="code" href="namespacepolybori.html#f3ca38c9ee70d41e5c065fbaa14d903d">stable_hash_range</a>(HashType& seed, NaviType navi) {
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordflow">if</span> (navi.isConstant()) {
<a name="l00066"></a>00066 <span class="keywordflow">if</span> (navi.terminalValue())
<a name="l00067"></a>00067 boost::hash_combine(seed, CTypes::max_index());
<a name="l00068"></a>00068 <span class="keywordflow">return</span>;
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a>00071 boost::hash_combine(seed, *navi);
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <a class="code" href="namespacepolybori.html#f3ca38c9ee70d41e5c065fbaa14d903d">stable_hash_range</a>(seed, navi.thenBranch());
<a name="l00074"></a>00074 <a class="code" href="namespacepolybori.html#f3ca38c9ee70d41e5c065fbaa14d903d">stable_hash_range</a>(seed, navi.elseBranch());
<a name="l00075"></a>00075 }
<a name="l00076"></a>00076
<a name="l00077"></a>00077 <span class="keyword">template</span> <<span class="keyword">class</span> NaviType>
<a name="l00078"></a>00078 std::size_t
<a name="l00079"></a><a class="code" href="namespacepolybori.html#65b2864730fabb5fc33bdef8d86b7695">00079</a> <a class="code" href="namespacepolybori.html#f3ca38c9ee70d41e5c065fbaa14d903d">stable_hash_range</a>(NaviType navi) {
<a name="l00080"></a>00080
<a name="l00081"></a>00081 std::size_t seed = 0;
<a name="l00082"></a>00082 <a class="code" href="namespacepolybori.html#f3ca38c9ee70d41e5c065fbaa14d903d">stable_hash_range</a>(seed, navi);
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keywordflow">return</span> seed;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keyword">template</span> <<span class="keyword">class</span> HashType>
<a name="l00088"></a>00088 <span class="keywordtype">void</span>
<a name="l00089"></a><a class="code" href="namespacepolybori.html#811427ae191a90de2943d8ace708c5cb">00089</a> <a class="code" href="namespacepolybori.html#811427ae191a90de2943d8ace708c5cb">finalize_term_hash</a>(HashType& seed) {
<a name="l00090"></a>00090 boost::hash_combine(seed, CTypes::max_index());
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="keyword">template</span> <<span class="keyword">class</span> HashType, <span class="keyword">class</span> NaviType>
<a name="l00094"></a>00094 <span class="keywordtype">void</span>
<a name="l00095"></a><a class="code" href="namespacepolybori.html#e483cc7d390b3083d418e16bbfc224c3">00095</a> <a class="code" href="namespacepolybori.html#e483cc7d390b3083d418e16bbfc224c3">stable_first_hash_range</a>(HashType& seed, NaviType navi) {
<a name="l00096"></a>00096
<a name="l00097"></a>00097 <span class="keywordflow">while</span> (!navi.isConstant()) {
<a name="l00098"></a>00098 boost::hash_combine(seed, *navi);
<a name="l00099"></a>00099 navi.incrementThen();
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (navi.terminalValue())
<a name="l00102"></a>00102 <a class="code" href="namespacepolybori.html#811427ae191a90de2943d8ace708c5cb">finalize_term_hash</a>(seed);
<a name="l00103"></a>00103
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keyword">template</span> <<span class="keyword">class</span> NaviType>
<a name="l00107"></a>00107 std::size_t
<a name="l00108"></a><a class="code" href="namespacepolybori.html#5ae6ef1cbc5a102389632bcfe2a6babd">00108</a> <a class="code" href="namespacepolybori.html#e483cc7d390b3083d418e16bbfc224c3">stable_first_hash_range</a>(NaviType navi) {
<a name="l00109"></a>00109
<a name="l00110"></a>00110 std::size_t seed = 0;
<a name="l00111"></a>00111 <a class="code" href="namespacepolybori.html#e483cc7d390b3083d418e16bbfc224c3">stable_first_hash_range</a>(seed, navi);
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keywordflow">return</span> seed;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115
<a name="l00116"></a>00116 <span class="keyword">template</span> <<span class="keyword">class</span> HashType, <span class="keyword">class</span> Iterator>
<a name="l00117"></a>00117 <span class="keywordtype">void</span>
<a name="l00118"></a><a class="code" href="namespacepolybori.html#82ce990162a7e8ba2293b2dd6a353200">00118</a> <a class="code" href="namespacepolybori.html#82ce990162a7e8ba2293b2dd6a353200">stable_term_hash</a>(HashType& seed, Iterator start, Iterator finish) {
<a name="l00119"></a>00119 boost::hash_range(seed, start, finish);
<a name="l00120"></a>00120 <a class="code" href="namespacepolybori.html#811427ae191a90de2943d8ace708c5cb">finalize_term_hash</a>(seed);
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="keyword">template</span> <<span class="keyword">class</span> Iterator>
<a name="l00124"></a>00124 std::size_t
<a name="l00125"></a><a class="code" href="namespacepolybori.html#0e5e0f4a01820971b7a30c832d1fc615">00125</a> <a class="code" href="namespacepolybori.html#82ce990162a7e8ba2293b2dd6a353200">stable_term_hash</a>(Iterator start, Iterator finish) {
<a name="l00126"></a>00126
<a name="l00127"></a>00127 std::size_t seed(0);
<a name="l00128"></a>00128 <a class="code" href="namespacepolybori.html#82ce990162a7e8ba2293b2dd6a353200">stable_term_hash</a>(seed, start, finish);
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordflow">return</span> seed;
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="comment">// The following may be used without polybori. Hence, we have to load it in the</span>
<a name="l00135"></a>00135 <span class="comment">// namespace here</span>
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="comment">// Get generic hash functions</span>
<a name="l00138"></a>00138 <span class="comment">// #include "generic_hash.h"</span>
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="comment">// #ifndef PBORI_HASH_TAG</span>
<a name="l00141"></a>00141 <span class="comment">// #define PBORI_HASH_TAG js_tag</span>
<a name="l00142"></a>00142 <span class="comment">// #endif</span>
<a name="l00143"></a>00143
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="comment">// typedef generic_hash_tags::PBORI_HASH_TAG pbori_hash_tag;</span>
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <a class="code" href="pbori__defs_8h.html#faf094fde6c1a7f1aad18bcb455f3b06" title="Finish project&#39;s namespace.">END_NAMESPACE_PBORI</a>
<a name="l00148"></a>00148
<a name="l00149"></a>00149 <span class="preprocessor">#endif</span>
</pre></div></div>
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