rn
          Value</a>
        </h6>
<p>
          A <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span></code> where <code class="computeroutput"><span class="identifier">first</span></code>
          is an iterator to the existing or inserted element, and <code class="computeroutput"><span class="identifier">second</span></code>
          is <code class="computeroutput"><span class="keyword">true</span></code> if the insertion