s="special">,</span> 
                           <span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">archive</span><span class="special">::</span><span class="identifier">no_header</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">explicit</span> <a class="link" href="packed_skeleton_oarchive.html#id-1_3_27_5_14_22_2_1_4_6-bb"