span><span class="special">&lt;</span> <span class="identifier">Allocator</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">difference_type</span> <a name="boost.container.multiset.difference_type"></a><span class="identifier">difference_type</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">Allocator</span>                                                          <a name="boost.container.multiset.allocator_type