back.html

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head>  <meta name="generator" content=  "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">  <title>back</title>  <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table>  <tr>  <td>  <div class="body-content">  <div class="header-box">    <a href="../index.html">cppreference.com</a> &gt; <a href=    "index.html">C++ Lists</a> &gt; <a href="back.html">back</a>  </div>  <div class="name-format">    back  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  #include &lt;list&gt;  <a href="../containers.html">TYPE</a>&amp; back();  const <a href="../containers.html">TYPE</a>&amp; back() const;</pre>  <p>The back() function returns a reference to the last element in the  list.</p>  <p>For example:</p>  <pre class="example-code"> vector&lt;int&gt; v; for( int i = 0; i &lt; 5; i++ ) {   v.push_back(i); } cout &lt;&lt; &quot;The first element is &quot; &lt;&lt; v.front()      &lt;&lt; &quot; and the last element is &quot; &lt;&lt; v.back() &lt;&lt; endl;           </pre>  <p>This code produces the following output:</p>  <pre class="example-code"> The first element is 0 and the last element is 4               </pre>  <p>The back() function runs in <a href="../complexity.html">constant  time</a>.</p>  <div class="related-name-format">    Related topics:  </div>  <div class="related-content">    <a href="front.html">front</a><br>    <a href="pop_back.html">pop_back</a>  </div>  </div>  </td>    </tr>  </table></body></html>

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