ut"><span class="identifier">m_iter</span></code> is either the
        first position in the range <code class="computeroutput"><span class="special">[</span><span class="identifier">x</span><span class="special">,</span><span class="identifier">end</span><span class="special">)</span></code> such that <code class="computeroutput"><span class="identifier">m_pred</span><span class="special">(*</span><span class="identifier">m_iter</span><span class="special">)</span> <span class="special">==</span> <span cl