>BidiIter</span> <span class="special">&gt;</span> <span class="keyword">const</span>  <span class="special">&gt;</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> <span class="keyword">const</span> 
  <span class="identifier">by_ref</span><span class="special">(</span><a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special">&lt;</span> <span class="identifier">BidiIter</span> <span class="speci