lass="identifier">stream_itr_type</span> <span class="special">&amp;</span><span class="special">,</span> <a class="link" href="special_values_parser.html#boost.date_time.special_values_parser.match_results">match_results</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>

  <span class="comment">// public data members</span>
  <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">cha