>                                       <a name="boost.icl.separate_interval_set.allocator_type"></a><span class="identifier">allocator_type</span><span class="special">;</span>         <span class="comment">// The allocator type of the set. </span>
  <span class="keyword">typedef</span> <span class="identifier">Alloc</span><span class="special">&lt;</span> <span class="identifier">DomainT</span> <span class="special">&gt;</span>                                             <a name="boost.icl.separate_interv