lass="identifier">compile</span></a><span class="special">(</span><span class="identifier">char_type</span> <span class="keyword">const</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span> <span class="identifier">flag_type</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// public data members</span>
  <span class="k