nk" href="c_regex_traits.html#idp115419296-bb"><span class="identifier">lookup_classname</span></a><span class="special">(</span><span class="identifier">FwdIter</span><span class="special">,</span> <span class="identifier">FwdIter</span><span class="special">,</span> <span class="keyword">bool</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="c_regex_traits.html#idp115422768-bb"><span class="ident