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<div class="title">hash_chain Class Reference</div> </div>
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<p>Chain class with a given modulus.
<a href="../../dd/d1c/classhash__chain.html#details">More...</a></p>
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Collaboration diagram for hash_chain:</div>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a80c8b902a15b4fd062ed727ecf8f3595"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a80c8b902a15b4fd062ed727ecf8f3595">hash_chain</a> (int mod)</td></tr>
<tr class="memdesc:a80c8b902a15b4fd062ed727ecf8f3595"><td class="mdescLeft">&#160;</td><td class="mdescRight">Construct a new chain object. <a href="../../dd/d1c/classhash__chain.html#a80c8b902a15b4fd062ed727ecf8f3595">More...</a><br /></td></tr>
<tr class="separator:a80c8b902a15b4fd062ed727ecf8f3595"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6b4b4de1a8c96f98a63a77f650a9dcff"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a6b4b4de1a8c96f98a63a77f650a9dcff">add</a> (int x, int <a class="el" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>)</td></tr>
<tr class="memdesc:a6b4b4de1a8c96f98a63a77f650a9dcff"><td class="mdescLeft">&#160;</td><td class="mdescRight">create and add a new node with a give value and at a given height <a href="../../dd/d1c/classhash__chain.html#a6b4b4de1a8c96f98a63a77f650a9dcff">More...</a><br /></td></tr>
<tr class="separator:a6b4b4de1a8c96f98a63a77f650a9dcff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a706964ad13587fc9a8b3fe8381d410ed"><td class="memItemLeft" align="right" valign="top"><a id="a706964ad13587fc9a8b3fe8381d410ed"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a706964ad13587fc9a8b3fe8381d410ed">display</a> ()</td></tr>
<tr class="memdesc:a706964ad13587fc9a8b3fe8381d410ed"><td class="mdescLeft">&#160;</td><td class="mdescRight">Display the chain. <br /></td></tr>
<tr class="separator:a706964ad13587fc9a8b3fe8381d410ed"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a846a2f921f8fb7ea572e03901b671d64"><td class="memItemLeft" align="right" valign="top">virtual int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a846a2f921f8fb7ea572e03901b671d64">hash</a> (int x) const</td></tr>
<tr class="memdesc:a846a2f921f8fb7ea572e03901b671d64"><td class="mdescLeft">&#160;</td><td class="mdescRight">Compute the hash of a value for current chain. <a href="../../dd/d1c/classhash__chain.html#a846a2f921f8fb7ea572e03901b671d64">More...</a><br /></td></tr>
<tr class="separator:a846a2f921f8fb7ea572e03901b671d64"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a55aa5c6753cb8853152d469c375d946a"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a55aa5c6753cb8853152d469c375d946a">find</a> (int x, int <a class="el" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>) const</td></tr>
<tr class="memdesc:a55aa5c6753cb8853152d469c375d946a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Find if a value and corresponding hash exist. <a href="../../dd/d1c/classhash__chain.html#a55aa5c6753cb8853152d469c375d946a">More...</a><br /></td></tr>
<tr class="separator:a55aa5c6753cb8853152d469c375d946a"><td class="memSeparator" colspan="2">&#160;</td></tr>
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Private Types</h2></td></tr>
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using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a21172d047bb9621385f2426ce25e71aa">Node</a> = struct <a class="el" href="../../dd/d1c/classhash__chain.html#a21172d047bb9621385f2426ce25e71aa">Node</a> { int <a class="el" href="../../d1/df3/hash__search_8cpp.html#a6e1a77282bc65ad359d753d25df23243">data</a>{}</td></tr>
<tr class="memdesc:a21172d047bb9621385f2426ce25e71aa"><td class="mdescLeft">&#160;</td><td class="mdescRight">data stored in the node <br /></td></tr>
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Private Attributes</h2></td></tr>
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<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a>&lt; struct <a class="el" href="../../dd/d1c/classhash__chain.html#a21172d047bb9621385f2426ce25e71aa">Node</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#a48236d44349c3ebce4774b706f4f8a0f">next</a></td></tr>
<tr class="memdesc:a48236d44349c3ebce4774b706f4f8a0f"><td class="mdescLeft">&#160;</td><td class="mdescRight">pointer to the next node <br /></td></tr>
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<tr class="memitem:ae8457d13620497fa2046ac566252c4b0"><td class="memItemLeft" align="right" valign="top"><a id="ae8457d13620497fa2046ac566252c4b0"></a>
<a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector.html">std::vector</a>&lt; <a class="elRef" target="_blank" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr</a>&lt; <a class="el" href="../../dd/d1c/classhash__chain.html#a21172d047bb9621385f2426ce25e71aa">Node</a> &gt; &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a></td></tr>
<tr class="memdesc:ae8457d13620497fa2046ac566252c4b0"><td class="mdescLeft">&#160;</td><td class="mdescRight">array of nodes <br /></td></tr>
<tr class="separator:ae8457d13620497fa2046ac566252c4b0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae9ddce410015ed8dda6380130d82d6c2"><td class="memItemLeft" align="right" valign="top"><a id="ae9ddce410015ed8dda6380130d82d6c2"></a>
int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d1c/classhash__chain.html#ae9ddce410015ed8dda6380130d82d6c2">_mod</a></td></tr>
<tr class="memdesc:ae9ddce410015ed8dda6380130d82d6c2"><td class="mdescLeft">&#160;</td><td class="mdescRight">modulus of the class <br /></td></tr>
<tr class="separator:ae9ddce410015ed8dda6380130d82d6c2"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Chain class with a given modulus. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a80c8b902a15b4fd062ed727ecf8f3595"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a80c8b902a15b4fd062ed727ecf8f3595">&#9670;&nbsp;</a></span>hash_chain()</h2>
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<td class="memname">hash_chain::hash_chain </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>mod</em></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">explicit</span></span> </td>
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<p>Construct a new chain object. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mod</td><td>modulus of the chain </td></tr>
</table>
</dd>
</dl>
<div class="fragment"><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; : <a class="code" href="../../dd/d1c/classhash__chain.html#ae9ddce410015ed8dda6380130d82d6c2">_mod</a>(mod) {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keywordflow">while</span> (mod--) <a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>.<a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">push_back</a>(<span class="keyword">nullptr</span>);</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; }</div>
<div class="ttc" id="aclasshash__chain_html_ae8457d13620497fa2046ac566252c4b0"><div class="ttname"><a href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">hash_chain::head</a></div><div class="ttdeci">std::vector&lt; std::shared_ptr&lt; Node &gt; &gt; head</div><div class="ttdoc">array of nodes</div><div class="ttdef"><b>Definition:</b> chaining.cpp:24</div></div>
<div class="ttc" id="aclasshash__chain_html_ae9ddce410015ed8dda6380130d82d6c2"><div class="ttname"><a href="../../dd/d1c/classhash__chain.html#ae9ddce410015ed8dda6380130d82d6c2">hash_chain::_mod</a></div><div class="ttdeci">int _mod</div><div class="ttdoc">modulus of the class</div><div class="ttdef"><b>Definition:</b> chaining.cpp:27</div></div>
<div class="ttc" id="apush_back_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/container/vector/push_back.html">std::vector::push_back</a></div><div class="ttdeci">T push_back(T... args)</div></div>
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<h2 class="groupheader">Member Function Documentation</h2>
<a id="a6b4b4de1a8c96f98a63a77f650a9dcff"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6b4b4de1a8c96f98a63a77f650a9dcff">&#9670;&nbsp;</a></span>add()</h2>
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<td class="memname">void hash_chain::add </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>h</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>create and add a new node with a give value and at a given height </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>value at the new node </td></tr>
<tr><td class="paramname">h</td><td>height of the node </td></tr>
</table>
</dd>
</dl>
<div class="fragment"><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;Node&gt;</a> curr;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;Node&gt;</a> temp(<span class="keyword">new</span> <a class="code" href="../../db/d8b/struct_node.html">Node</a>);</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; temp-&gt;data = x;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; temp-&gt;next = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>[<a class="code" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>]) {</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>[<a class="code" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>] = temp;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; curr = <a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>[<a class="code" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>];</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; curr = <a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>[<a class="code" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>];</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">while</span> (curr-&gt;next) curr = curr-&gt;next;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; curr-&gt;next = temp;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; }</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; }</div>
<div class="ttc" id="ahash__search_8cpp_html_a566eaf0ffafd50bc61e644561fd27001"><div class="ttname"><a href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a></div><div class="ttdeci">int h(int key)</div><div class="ttdef"><b>Definition:</b> hash_search.cpp:45</div></div>
<div class="ttc" id="ashared_ptr_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt; Node &gt;</a></div></div>
<div class="ttc" id="astruct_node_html"><div class="ttname"><a href="../../db/d8b/struct_node.html">Node</a></div><div class="ttdef"><b>Definition:</b> linkedlist_implentation_usingarray.cpp:14</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a55aa5c6753cb8853152d469c375d946a">&#9670;&nbsp;</a></span>find()</h2>
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<td class="memname">bool hash_chain::find </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>x</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>h</em>&#160;</td>
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<td></td>
<td>)</td>
<td></td><td> const</td>
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<p>Find if a value and corresponding hash exist. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>value to search for </td></tr>
<tr><td class="paramname">h</td><td>corresponding hash key </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>true</code> if element found </dd>
<dd>
<code>false</code> if element not found </dd></dl>
<div class="fragment"><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;Node&gt;</a> temp = <a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>[<a class="code" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>];</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="../../dd/d1c/classhash__chain.html#ae8457d13620497fa2046ac566252c4b0">head</a>[<a class="code" href="../../d1/df3/hash__search_8cpp.html#a566eaf0ffafd50bc61e644561fd27001">h</a>]) {</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="comment">// index does not exist!</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Element not found&quot;</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; }</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="comment">// scan for data value</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; <span class="keywordflow">while</span> (temp-&gt;data != x &amp;&amp; temp-&gt;next) temp = temp-&gt;next;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordflow">if</span> (temp-&gt;next) {</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Element found&quot;</span>;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; <span class="comment">// implicit else condition</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="comment">// i.e., temp-&gt;next == nullptr</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; <span class="keywordflow">if</span> (temp-&gt;data == x) {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Element found&quot;</span>;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; }</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="comment">// further implicit else condition</span></div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Element not found&quot;</span>;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; }</div>
<div class="ttc" id="abasic_ostream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a></div></div>
</div><!-- fragment --><div class="dynheader">
Here is the call graph for this function:</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a846a2f921f8fb7ea572e03901b671d64">&#9670;&nbsp;</a></span>hash()</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
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<table class="memname">
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<td class="memname">virtual int hash_chain::hash </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>x</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">virtual</span></span> </td>
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</div><div class="memdoc">
<p>Compute the hash of a value for current chain. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">x</td><td>value to compute modulus of </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>modulus of <code>x</code> </dd></dl>
<dl class="section note"><dt>Note</dt><dd>declared as a <a href="https://en.cppreference.com/w/cpp/language/virtual"><code>virtual</code></a> so that custom implementations of the class can modify the hash function. </dd></dl>
<div class="fragment"><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160;{ <span class="keywordflow">return</span> x % <a class="code" href="../../dd/d1c/classhash__chain.html#ae9ddce410015ed8dda6380130d82d6c2">_mod</a>; }</div>
</div><!-- fragment -->
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li>hashing/<a class="el" href="../../d9/d92/chaining_8cpp.html">chaining.cpp</a></li>
</ul>
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