rameter
              </li>
<li class="listitem">
                Classes derived from <code class="computeroutput"><span class="identifier">basic_parser</span></code>
                no longer need to friend the base.
              </li>
<li class="listitem">
                Virtual functions in the derived class may be marked <code class="computeroutput"><span class="identifier">override</span></code>.
              </li>
</ul></div>
        </li>
<li class="listitem">
          Metafunction <code class="