/div>
              </div>
            </div>
            <p>The target key to find. </p>
          </div>
        </div>
        <div class="sect3" lang="en" xml:lang="en">
          <div class="titlepage">
            <div>
              <div>
                <h4 class="title"><a id="idp50501600"></a>Return Value</h4>
              </div>
            </div>
          </div>
          <p>The valid const iterator sitting on the key, or an invalid one. </p>
        </div>
        <div class="sect3" lang="en"