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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>insert</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++ Multimaps</a> &gt; <a href=    "insert.html">insert</a>  </div>  <div class="name-format">    insert  </div>  <div class="syntax-name-format">    Syntax:  </div>  <pre class="syntax-box">  #include &lt;map&gt;  iterator insert( iterator pos, const <a href="../containers.html">TYPE</a>&amp; val );  iterator insert( const <a href="../containers.html">TYPE</a>&amp; val );  void insert( <a href="../iterators.html">input_iterator</a> start, <a href="../iterators.html">input_iterator</a> end );</pre>  <p>The function insert() either:</p>  <ul>    <li>inserts <em>val</em> after the element at <em>pos</em> (where    <em>pos</em> is really just a suggestion as to where <em>val</em>    should go, since multimaps are ordered), and returns an iterator    to that element.</li>    <li>inserts <em>val</em> into the multimap, returning an iterator    to the element inserted.</li>    <li>inserts a range of elements from <em>start</em> to    <em>end</em>.</li>  </ul>  <p>For example, the following code uses the insert() function to add  several &lt;name,ID&gt; pairs to a employee multimap:</p>  <pre class="example-code">  multimap&lt;string,int&gt; m;  int employeeID = 0;  m.insert( pair&lt;string,int&gt;("Bob Smith",employeeID++) );  m.insert( pair&lt;string,int&gt;("Bob Thompson",employeeID++) );  m.insert( pair&lt;string,int&gt;("Bob Smithey",employeeID++) );  m.insert( pair&lt;string,int&gt;("Bob Smith",employeeID++) );  cout &lt;&lt; "Number of employees named 'Bob Smith': " &lt;&lt; m.count("Bob Smith") &lt;&lt; endl;  cout &lt;&lt; "Number of employees named 'Bob Thompson': " &lt;&lt; m.count("Bob Thompson") &lt;&lt; endl;  cout &lt;&lt; "Number of employees named 'Bob Smithey': " &lt;&lt; m.count("Bob Smithey") &lt;&lt; endl;  cout &lt;&lt; "Employee list: " &lt;&lt; endl;  for( multimap&lt;string, int&gt;::iterator iter = m.begin(); iter != m.end(); ++iter ) {    cout &lt;&lt; " Name: " &lt;&lt; iter-&gt;first &lt;&lt; ", ID #" &lt;&lt; iter-&gt;second &lt;&lt; endl;  }</pre>  <p>When run, the above code produces the following output:</p>  <pre class="example-code">  Number of employees named 'Bob Smith': 2  Number of employees named 'Bob Thompson': 1  Number of employees named 'Bob Smithey': 1  Employee list:   Name: Bob Smith, ID #0   Name: Bob Smith, ID #3   Name: Bob Smithey, ID #2   Name: Bob Thompson, ID #1</pre>  </div>  </td>    </tr>  </table></body></html>
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