an> <span class="identifier">Enclosing_Type</span><span class="special">::*</span> <span class="special">)</span> <span class="special">(</span> <span class="identifier">Parameter_Types</span> <span class="special">)</span> <span class="identifier">cv_qualifier</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span>
</pre>
<p>
      where the Parameter_Types may be empty, or a comma-separated list of parameter
      types if there are more than one parameter type.