ray::end"><code class="computeroutput"><span class="identifier">end</span><span class="special">()</span></code></a>
                      iterator.
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      <code class="computeroutput"><span class="identifier">first</span></code>
                    </p>
                  </td>
<td>
                    <p>
                      An input iterator pointing to the first element to insert,
                   