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<p><a href="https://en.wikipedia.org/wiki/Trie" target="_blank">Trie</a> implementation for small-case English alphabets <span class="tt">a-z</span>
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 id="header-pub-methods" class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a87d8bf99aea936f9381141753f1e90a8" id="r_a87d8bf99aea936f9381141753f1e90a8"><td class="memItemLeft" align="right" valign="top"><a id="a87d8bf99aea936f9381141753f1e90a8" name="a87d8bf99aea936f9381141753f1e90a8"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>trie</b> ()=default</td></tr>
<tr class="memdesc:a87d8bf99aea936f9381141753f1e90a8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Class default constructor. <br /></td></tr>
<tr class="memitem:a0ab94bc6417e3f59fab33cea5b64d546" id="r_a0ab94bc6417e3f59fab33cea5b64d546"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a0ab94bc6417e3f59fab33cea5b64d546">insert</a> (const std::string &amp;str)</td></tr>
<tr class="memitem:a499f87fd833203ef9492b4870aa6d42d" id="r_a499f87fd833203ef9492b4870aa6d42d"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a499f87fd833203ef9492b4870aa6d42d">search</a> (const std::string &amp;str, int index)</td></tr>
<tr class="memitem:aeac27cfd397d2dd3f2f519efffafeeab" id="r_aeac27cfd397d2dd3f2f519efffafeeab"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aeac27cfd397d2dd3f2f519efffafeeab">deleteString</a> (const std::string &amp;str, int index)</td></tr>
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Private Member Functions</h2></td></tr>
<tr class="memitem:aab373beb3f618b90922528c68797d988" id="r_aab373beb3f618b90922528c68797d988"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aab373beb3f618b90922528c68797d988">char_to_int</a> (const char &amp;ch) const</td></tr>
<tr class="memdesc:aab373beb3f618b90922528c68797d988"><td class="mdescLeft">&#160;</td><td class="mdescRight">Convert a character to integer for indexing. <br /></td></tr>
<tr class="memitem:a961eb5d576d2420f2036009154397c63" id="r_a961eb5d576d2420f2036009154397c63"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a961eb5d576d2420f2036009154397c63">search</a> (const std::shared_ptr&lt; <a class="el" href="../../d0/d3e/classdata__structures_1_1trie.html">trie</a> &gt; &amp;root, const std::string &amp;str, int index)</td></tr>
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Private Attributes</h2></td></tr>
<tr class="memitem:a362dd78748a1f01ab019e55fd6098a8b" id="r_a362dd78748a1f01ab019e55fd6098a8b"><td class="memItemLeft" align="right" valign="top">std::array&lt; std::shared_ptr&lt; <a class="el" href="../../d0/d3e/classdata__structures_1_1trie.html">trie</a> &gt;, <a class="el" href="#a4bfac4be6ed1a34c7159eddb42469191">NUM_CHARS</a>&lt;&lt; 1 &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a></td></tr>
<tr class="memdesc:a362dd78748a1f01ab019e55fd6098a8b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Recursive tree nodes as an array of shared-pointers. <br /></td></tr>
<tr class="memitem:a4cb0f775b5a4bc14a6d39b5c93883eb6" id="r_a4cb0f775b5a4bc14a6d39b5c93883eb6"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">isEndofWord</a> = false</td></tr>
<tr class="memdesc:a4cb0f775b5a4bc14a6d39b5c93883eb6"><td class="mdescLeft">&#160;</td><td class="mdescRight">identifier if a node is terminal node <br /></td></tr>
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Static Private Attributes</h2></td></tr>
<tr class="memitem:a4bfac4be6ed1a34c7159eddb42469191" id="r_a4bfac4be6ed1a34c7159eddb42469191"><td class="memItemLeft" align="right" valign="top">static constexpr uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a4bfac4be6ed1a34c7159eddb42469191">NUM_CHARS</a> = 26</td></tr>
<tr class="memdesc:a4bfac4be6ed1a34c7159eddb42469191"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of alphabets. <br /></td></tr>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a href="https://en.wikipedia.org/wiki/Trie" target="_blank">Trie</a> implementation for small-case English alphabets <span class="tt">a-z</span> </p>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00025">25</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
</div><a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Member Function Documentation</h2>
<a id="aab373beb3f618b90922528c68797d988" name="aab373beb3f618b90922528c68797d988"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aab373beb3f618b90922528c68797d988">&#9670;&#160;</a></span>char_to_int()</h2>
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<td class="memname">uint8_t data_structures::trie::char_to_int </td>
<td>(</td>
<td class="paramtype">const char &amp;</td> <td class="paramname"><span class="paramname"><em>ch</em></span></td><td>)</td>
<td> const</td>
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<p>Convert a character to integer for indexing. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ch</td><td>character to index </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>unsigned integer index </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00038">38</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 38</span> {</div>
<div class="line"><span class="lineno"> 39</span> <span class="keywordflow">if</span> (ch &gt;= <span class="charliteral">&#39;A&#39;</span> &amp;&amp; ch &lt;= <span class="charliteral">&#39;Z&#39;</span>) {</div>
<div class="line"><span class="lineno"> 40</span> <span class="keywordflow">return</span> ch - <span class="charliteral">&#39;A&#39;</span>;</div>
<div class="line"><span class="lineno"> 41</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ch &gt;= <span class="charliteral">&#39;a&#39;</span> &amp;&amp; ch &lt;= <span class="charliteral">&#39;z&#39;</span>) {</div>
<div class="line"><span class="lineno"> 42</span> <span class="keywordflow">return</span> ch - <span class="charliteral">&#39;a&#39;</span> + <a class="code hl_variable" href="#a4bfac4be6ed1a34c7159eddb42469191">NUM_CHARS</a>;</div>
<div class="line"><span class="lineno"> 43</span> }</div>
<div class="line"><span class="lineno"> 44</span> </div>
<div class="line"><span class="lineno"> 45</span> std::cerr &lt;&lt; <span class="stringliteral">&quot;Invalid character present. Exiting...&quot;</span>;</div>
<div class="line"><span class="lineno"> 46</span> std::exit(EXIT_FAILURE);</div>
<div class="line"><span class="lineno"> 47</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 48</span> }</div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_a4bfac4be6ed1a34c7159eddb42469191"><div class="ttname"><a href="#a4bfac4be6ed1a34c7159eddb42469191">data_structures::trie::NUM_CHARS</a></div><div class="ttdeci">static constexpr uint8_t NUM_CHARS</div><div class="ttdoc">Number of alphabets.</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d83/trie__tree_8cpp_source.html#l00027">trie_tree.cpp:27</a></div></div>
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<a id="aeac27cfd397d2dd3f2f519efffafeeab" name="aeac27cfd397d2dd3f2f519efffafeeab"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aeac27cfd397d2dd3f2f519efffafeeab">&#9670;&#160;</a></span>deleteString()</h2>
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<td class="memname">bool data_structures::trie::deleteString </td>
<td>(</td>
<td class="paramtype">const std::string &amp;</td> <td class="paramname"><span class="paramname"><em>str</em></span>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int</td> <td class="paramname"><span class="paramname"><em>index</em></span>&#160;)</td>
</tr>
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<p>removes the string if it is not a prefix of any other string, if it is then just sets the ::data_structure::trie::isEndofWord to false, else removes the given string </p><dl class="section note"><dt>Note</dt><dd>the function ::data_structure::trie::deleteString might be erroneous </dd></dl>
<dl class="todo"><dt><b><a class="el" href="../../dd/da0/todo.html#_todo000005">Todo</a></b></dt><dd>review the function ::data_structure::trie::deleteString and the commented lines </dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>string to remove </td></tr>
<tr><td class="paramname">index</td><td>index to remove from </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><span class="tt">true</span> if successful </dd>
<dd>
<span class="tt">false</span> if unsuccessful </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00134">134</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 134</span> {</div>
<div class="line"><span class="lineno"> 135</span> <span class="keywordflow">if</span> (index == str.length()) {</div>
<div class="line"><span class="lineno"> 136</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">isEndofWord</a>) {</div>
<div class="line"><span class="lineno"> 137</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 138</span> }</div>
<div class="line"><span class="lineno"> 139</span> <a class="code hl_variable" href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">isEndofWord</a> = <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 140</span> <span class="comment">// following lines - possible source of error?</span></div>
<div class="line"><span class="lineno"> 141</span> <span class="comment">// for (int i = 0; i &lt; NUM_CHARS; i++)</span></div>
<div class="line"><span class="lineno"> 142</span> <span class="comment">// if (!arr[i])</span></div>
<div class="line"><span class="lineno"> 143</span> <span class="comment">// return false;</span></div>
<div class="line"><span class="lineno"> 144</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 145</span> }</div>
<div class="line"><span class="lineno"> 146</span> <span class="keywordtype">int</span> j = <a class="code hl_function" href="#aab373beb3f618b90922528c68797d988">char_to_int</a>(str[index]);</div>
<div class="line"><span class="lineno"> 147</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j]) {</div>
<div class="line"><span class="lineno"> 148</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 149</span> }</div>
<div class="line"><span class="lineno"> 150</span> <span class="keywordtype">bool</span> var = <a class="code hl_function" href="#aeac27cfd397d2dd3f2f519efffafeeab">deleteString</a>(str, index + 1);</div>
<div class="line"><span class="lineno"> 151</span> <span class="keywordflow">if</span> (var) {</div>
<div class="line"><span class="lineno"> 152</span> <a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j].reset();</div>
<div class="line"><span class="lineno"> 153</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">isEndofWord</a>) {</div>
<div class="line"><span class="lineno"> 154</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 155</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><span class="lineno"> 156</span> <span class="keywordtype">int</span> i = 0;</div>
<div class="line"><span class="lineno"> 157</span> <span class="keywordflow">for</span> (i = 0; i &lt; <a class="code hl_variable" href="#a4bfac4be6ed1a34c7159eddb42469191">NUM_CHARS</a>; i++) {</div>
<div class="line"><span class="lineno"> 158</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[i]) {</div>
<div class="line"><span class="lineno"> 159</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 160</span> }</div>
<div class="line"><span class="lineno"> 161</span> }</div>
<div class="line"><span class="lineno"> 162</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 163</span> }</div>
<div class="line"><span class="lineno"> 164</span> }</div>
<div class="line"><span class="lineno"> 165</span> </div>
<div class="line"><span class="lineno"> 166</span> <span class="comment">/* should not return here */</span></div>
<div class="line"><span class="lineno"> 167</span> std::cout &lt;&lt; __func__ &lt;&lt; <span class="stringliteral">&quot;:&quot;</span> &lt;&lt; __LINE__</div>
<div class="line"><span class="lineno"> 168</span> &lt;&lt; <span class="stringliteral">&quot;Should not reach this line\n&quot;</span>;</div>
<div class="line"><span class="lineno"> 169</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 170</span> }</div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_a362dd78748a1f01ab019e55fd6098a8b"><div class="ttname"><a href="#a362dd78748a1f01ab019e55fd6098a8b">data_structures::trie::arr</a></div><div class="ttdeci">std::array&lt; std::shared_ptr&lt; trie &gt;, NUM_CHARS&lt;&lt; 1 &gt; arr</div><div class="ttdoc">Recursive tree nodes as an array of shared-pointers.</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d83/trie__tree_8cpp_source.html#l00029">trie_tree.cpp:29</a></div></div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_a4cb0f775b5a4bc14a6d39b5c93883eb6"><div class="ttname"><a href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">data_structures::trie::isEndofWord</a></div><div class="ttdeci">bool isEndofWord</div><div class="ttdoc">identifier if a node is terminal node</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d83/trie__tree_8cpp_source.html#l00030">trie_tree.cpp:30</a></div></div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_aab373beb3f618b90922528c68797d988"><div class="ttname"><a href="#aab373beb3f618b90922528c68797d988">data_structures::trie::char_to_int</a></div><div class="ttdeci">uint8_t char_to_int(const char &amp;ch) const</div><div class="ttdoc">Convert a character to integer for indexing.</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d83/trie__tree_8cpp_source.html#l00038">trie_tree.cpp:38</a></div></div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_aeac27cfd397d2dd3f2f519efffafeeab"><div class="ttname"><a href="#aeac27cfd397d2dd3f2f519efffafeeab">data_structures::trie::deleteString</a></div><div class="ttdeci">bool deleteString(const std::string &amp;str, int index)</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d83/trie__tree_8cpp_source.html#l00134">trie_tree.cpp:134</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a0ab94bc6417e3f59fab33cea5b64d546">&#9670;&#160;</a></span>insert()</h2>
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<td class="memname">void data_structures::trie::insert </td>
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<p>insert string into the trie </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">str</td><td>String to insert in the tree </td></tr>
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</dd>
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<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00077">77</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 77</span> {</div>
<div class="line"><span class="lineno"> 78</span> std::shared_ptr&lt;trie&gt; root(<span class="keyword">nullptr</span>);</div>
<div class="line"><span class="lineno"> 79</span> </div>
<div class="line"><span class="lineno"> 80</span> <span class="keywordflow">for</span> (<span class="keyword">const</span> <span class="keywordtype">char</span>&amp; ch : str) {</div>
<div class="line"><span class="lineno"> 81</span> <span class="keywordtype">int</span> j = <a class="code hl_function" href="#aab373beb3f618b90922528c68797d988">char_to_int</a>(ch);</div>
<div class="line"><span class="lineno"> 82</span> <span class="keywordflow">if</span> (root) {</div>
<div class="line"><span class="lineno"> 83</span> <span class="keywordflow">if</span> (root-&gt;arr[j]) {</div>
<div class="line"><span class="lineno"> 84</span> root = root-&gt;arr[j];</div>
<div class="line"><span class="lineno"> 85</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><span class="lineno"> 86</span> std::shared_ptr&lt;trie&gt; temp(<span class="keyword">new</span> <a class="code hl_function" href="#a87d8bf99aea936f9381141753f1e90a8">trie</a>());</div>
<div class="line"><span class="lineno"> 87</span> root-&gt;arr[j] = temp;</div>
<div class="line"><span class="lineno"> 88</span> root = temp;</div>
<div class="line"><span class="lineno"> 89</span> }</div>
<div class="line"><span class="lineno"> 90</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j]) {</div>
<div class="line"><span class="lineno"> 91</span> root = <a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j];</div>
<div class="line"><span class="lineno"> 92</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><span class="lineno"> 93</span> std::shared_ptr&lt;trie&gt; temp(<span class="keyword">new</span> <a class="code hl_function" href="#a87d8bf99aea936f9381141753f1e90a8">trie</a>());</div>
<div class="line"><span class="lineno"> 94</span> <a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j] = temp;</div>
<div class="line"><span class="lineno"> 95</span> root = temp;</div>
<div class="line"><span class="lineno"> 96</span> }</div>
<div class="line"><span class="lineno"> 97</span> }</div>
<div class="line"><span class="lineno"> 98</span> root-&gt;isEndofWord = <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 99</span> }</div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_a87d8bf99aea936f9381141753f1e90a8"><div class="ttname"><a href="#a87d8bf99aea936f9381141753f1e90a8">data_structures::trie::trie</a></div><div class="ttdeci">trie()=default</div><div class="ttdoc">Class default constructor.</div></div>
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<td class="memname">bool data_structures::trie::search </td>
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<td class="paramtype">const std::shared_ptr&lt; <a class="el" href="../../d0/d3e/classdata__structures_1_1trie.html">trie</a> &gt; &amp;</td> <td class="paramname"><span class="paramname"><em>root</em></span>, </td>
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<p>search a string exists inside a given root trie </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>string to search for </td></tr>
<tr><td class="paramname">index</td><td>start index to search from </td></tr>
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<dl class="section return"><dt>Returns</dt><dd><span class="tt">true</span> if found </dd>
<dd>
<span class="tt">false</span> if not found </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00056">56</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 57</span> {</div>
<div class="line"><span class="lineno"> 58</span> <span class="keywordflow">if</span> (index == str.length()) {</div>
<div class="line"><span class="lineno"> 59</span> <span class="keywordflow">if</span> (!root-&gt;isEndofWord) {</div>
<div class="line"><span class="lineno"> 60</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 61</span> }</div>
<div class="line"><span class="lineno"> 62</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 63</span> }</div>
<div class="line"><span class="lineno"> 64</span> <span class="keywordtype">int</span> j = <a class="code hl_function" href="#aab373beb3f618b90922528c68797d988">char_to_int</a>(str[index]);</div>
<div class="line"><span class="lineno"> 65</span> <span class="keywordflow">if</span> (!root-&gt;arr[j]) {</div>
<div class="line"><span class="lineno"> 66</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 67</span> }</div>
<div class="line"><span class="lineno"> 68</span> <span class="keywordflow">return</span> <a class="code hl_function" href="#a961eb5d576d2420f2036009154397c63">search</a>(root-&gt;arr[j], str, index + 1);</div>
<div class="line"><span class="lineno"> 69</span> }</div>
<div class="ttc" id="aclassdata__structures_1_1trie_html_a961eb5d576d2420f2036009154397c63"><div class="ttname"><a href="#a961eb5d576d2420f2036009154397c63">data_structures::trie::search</a></div><div class="ttdeci">bool search(const std::shared_ptr&lt; trie &gt; &amp;root, const std::string &amp;str, int index)</div><div class="ttdef"><b>Definition</b> <a href="../../d7/d83/trie__tree_8cpp_source.html#l00056">trie_tree.cpp:56</a></div></div>
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<p>search a string exists inside the trie </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>string to search for </td></tr>
<tr><td class="paramname">index</td><td>start index to search from </td></tr>
</table>
</dd>
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<dl class="section return"><dt>Returns</dt><dd><span class="tt">true</span> if found </dd>
<dd>
<span class="tt">false</span> if not found </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00107">107</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
<div class="fragment"><div class="line"><span class="lineno"> 107</span> {</div>
<div class="line"><span class="lineno"> 108</span> <span class="keywordflow">if</span> (index == str.length()) {</div>
<div class="line"><span class="lineno"> 109</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">isEndofWord</a>) {</div>
<div class="line"><span class="lineno"> 110</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 111</span> }</div>
<div class="line"><span class="lineno"> 112</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><span class="lineno"> 113</span> }</div>
<div class="line"><span class="lineno"> 114</span> <span class="keywordtype">int</span> j = <a class="code hl_function" href="#aab373beb3f618b90922528c68797d988">char_to_int</a>(str[index]);</div>
<div class="line"><span class="lineno"> 115</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j]) {</div>
<div class="line"><span class="lineno"> 116</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><span class="lineno"> 117</span> }</div>
<div class="line"><span class="lineno"> 118</span> <span class="keywordflow">return</span> <a class="code hl_function" href="#a961eb5d576d2420f2036009154397c63">search</a>(<a class="code hl_variable" href="#a362dd78748a1f01ab019e55fd6098a8b">arr</a>[j], str, index + 1);</div>
<div class="line"><span class="lineno"> 119</span> }</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a362dd78748a1f01ab019e55fd6098a8b">&#9670;&#160;</a></span>arr</h2>
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<td class="memname">std::array&lt;std::shared_ptr&lt;<a class="el" href="../../d0/d3e/classdata__structures_1_1trie.html">trie</a>&gt;, <a class="el" href="#a4bfac4be6ed1a34c7159eddb42469191">NUM_CHARS</a> &lt;&lt; 1&gt; data_structures::trie::arr</td>
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<p>Recursive tree nodes as an array of shared-pointers. </p>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00029">29</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4cb0f775b5a4bc14a6d39b5c93883eb6">&#9670;&#160;</a></span>isEndofWord</h2>
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<td class="memname">bool data_structures::trie::isEndofWord = false</td>
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<p>identifier if a node is terminal node </p>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00030">30</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4bfac4be6ed1a34c7159eddb42469191">&#9670;&#160;</a></span>NUM_CHARS</h2>
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<td class="memname">uint8_t data_structures::trie::NUM_CHARS = 26</td>
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<p>Number of alphabets. </p>
<p class="definition">Definition at line <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html#l00027">27</a> of file <a class="el" href="../../d7/d83/trie__tree_8cpp_source.html">trie_tree.cpp</a>.</p>
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