le">
<li>Equivalent to (but without the <tt class="docutils literal">const_cast</tt>): <tt class="docutils literal">return insert( <span class="pre">const_cast&lt;key_type&amp;&gt;(k),</span> x.release() );</tt></li>
</ul>
</blockquote>
</li>
</ul>
<!-- - ``iterator insert( key_type& k, const_reference x );``

- Effects: ``return insert( allocate_clone( x ) );``

- Exception safety: Strong guarantee -->
<span class="target" id="lookup"></span><!-- Semantics: lookup
^^^^^^^^^^^^^^^^^

- ``reference        op