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<tr class="memdesc:d5/d3c/namespacedata__structures"><td class="mdescLeft">&#160;</td><td class="mdescRight">Data Structures algorithms. <br /></td></tr>
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<tr class="memitem:d3/db0/namespacelinked__list"><td class="memItemLeft" align="right" valign="top"> &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/db0/namespacelinked__list.html">linked_list</a></td></tr>
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<tr class="memdesc:d3/db0/namespacelinked__list"><td class="mdescLeft">&#160;</td><td class="mdescRight">Functions for singly linked list algorithm. <br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Implementation of singly linked list algorithm. </p>
<p>The linked list is a data structure used for holding a sequence of values, which can be added, removed and displayed. </p>
<div class="textblock"><p >Implementation of singly linked list algorithm. </p>
<p >The linked list is a data structure used for holding a sequence of values, which can be added, removed and displayed. </p>
<h3><a class="anchor" id="autotoc_md33"></a>
Algorithm</h3>
<p>Values can be added by iterating to the end of a list(by following the pointers) starting from the first link. Whichever link points to null is considered the last link and is pointed to the new value.</p>
<p>Values can be removed by also iterating through the list. When the node containing the value is found, the node pointing to the current node is made to point to the node that the current node is pointing to, and then returning the current node to heap store. </p>
<p >Values can be added by iterating to the end of a list(by following the pointers) starting from the first link. Whichever link points to null is considered the last link and is pointed to the new value.</p>
<p >Values can be removed by also iterating through the list. When the node containing the value is found, the node pointing to the current node is made to point to the node that the current node is pointing to, and then returning the current node to heap store. </p>
</div><h2 class="groupheader">Function Documentation</h2>
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<p>This function checks if the string passed consists of only digits. </p><dl class="params"><dt>Parameters</dt><dd>
<p >This function checks if the string passed consists of only digits. </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">s</td><td>To be checked if s contains only integers </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>true if there are only only digits present in the string </dd>
<dd>
false if any other character is found </dd></dl>
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<p>Main function: Allows the user add and delete values from the list. Also allows user to search for and display values in the list. </p><dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</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;Wrong Input!\n&quot;</span>;</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; }</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="keywordflow">case</span> 4:</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; l.<a class="code" href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#abf7c97616b873ffeebdd0eac2d19d13e">display</a>();</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</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;\n&quot;</span>;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</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;Invalid Input\n&quot;</span> &lt;&lt; <a class="codeRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; }</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; } <span class="keywordflow">while</span> (choice != 0);</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160;}</div>
<p >Main function: Allows the user add and delete values from the list. Also allows user to search for and display values in the list. </p><dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
<div class="fragment"><div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> {</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> <a class="code hl_class" href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html">data_structures::linked_list::list</a> l;</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordtype">int</span> choice = 0;</div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordtype">int</span> x = 0;</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> s;</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">do</span> {</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n1. Insert&quot;</span>;</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n2. Delete&quot;</span>;</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n3. Search&quot;</span>;</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n4. Print&quot;</span>;</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n0. Exit&quot;</span>;</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n\nEnter you choice : &quot;</span>;</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; choice;</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">switch</span> (choice) {</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordflow">case</span> 1:</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\nEnter the element to be inserted : &quot;</span>;</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; s;</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordflow">if</span> (data_structures::linked_list::isDigit(s)) {</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> x = <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/stol.html">std::stoi</a>(s);</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> l.<a class="code hl_function" href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#ad585670a392c7e842c992d088093dff5">push_back</a>(x);</div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Wrong Input!\n&quot;</span>;</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> }</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordflow">case</span> 2:</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\nEnter the element to be removed : &quot;</span>;</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; s;</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">if</span> (data_structures::linked_list::isDigit(s)) {</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> x = <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/stol.html">std::stoi</a>(s);</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> l.<a class="code hl_function" href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#a1fb1792ab867dc26639eef368a56989e">erase</a>(x);</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Wrong Input!\n&quot;</span>;</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> }</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> <span class="keywordflow">case</span> 3:</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\nEnter the element to be searched : &quot;</span>;</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a> &gt;&gt; s;</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keywordflow">if</span> (data_structures::linked_list::isDigit(s)) {</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> x = <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/string/basic_string/stol.html">std::stoi</a>(s);</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/memory/shared_ptr.html">std::shared_ptr&lt;data_structures::linked_list::link&gt;</a> found =</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> l.<a class="code hl_function" href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#a098be172c737f236763afdb8cada4835">search</a>(x);</div>
<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Wrong Input!\n&quot;</span>;</div>
<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> }</div>
<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keywordflow">case</span> 4:</div>
<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> l.<a class="code hl_function" href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#abf7c97616b873ffeebdd0eac2d19d13e">display</a>();</div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keywordflow">default</span>:</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <a class="code hl_classRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::cout</a> &lt;&lt; <span class="stringliteral">&quot;Invalid Input\n&quot;</span> &lt;&lt; <a class="code hl_functionRef" target="_blank" href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a>;</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> <span class="keywordflow">break</span>;</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> }</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> } <span class="keywordflow">while</span> (choice != 0);</div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span>}</div>
<div class="ttc" id="abasic_istream_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/basic_istream.html">std::cin</a></div></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 class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div></div>
@@ -267,7 +266,7 @@ Here is the call graph for this function:</div>
<div class="ttc" id="aclassdata__structures_1_1linked__list_1_1list_html_abf7c97616b873ffeebdd0eac2d19d13e"><div class="ttname"><a href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#abf7c97616b873ffeebdd0eac2d19d13e">data_structures::linked_list::list::display</a></div><div class="ttdeci">void display()</div><div class="ttdef"><b>Definition:</b> linked_list.cpp:181</div></div>
<div class="ttc" id="aclassdata__structures_1_1linked__list_1_1list_html_ad585670a392c7e842c992d088093dff5"><div class="ttname"><a href="../../d1/def/classdata__structures_1_1linked__list_1_1list.html#ad585670a392c7e842c992d088093dff5">data_structures::linked_list::list::push_back</a></div><div class="ttdeci">void push_back(int new_elem)</div><div class="ttdef"><b>Definition:</b> linked_list.cpp:123</div></div>
<div class="ttc" id="aendl_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/io/manip/endl.html">std::endl</a></div><div class="ttdeci">T endl(T... args)</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; data_structures::linked_list::link &gt;</a></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</a></div></div>
<div class="ttc" id="astol_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string/stol.html">std::stoi</a></div><div class="ttdeci">T stoi(T... args)</div></div>
</div><!-- fragment --><div class="dynheader">
Here is the call graph for this function:</div>
@@ -284,7 +283,7 @@ Here is the call graph for this function:</div>
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