pecial">)</span><span class="special">)</span> <a name="boost.unit_test.data.monomorphic.grid.iterator.iterator_sample"></a><span class="identifier">iterator_sample</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="iterator.html#boost.unit_test.data.monomorphic.grid.iteratorconstruct-copy-destruct">construct/copy/destruct</a></span>
  <span class="keyword">explicit</span> <a class="link" href="iterator.html#idp58375968-bb"><span class="identifier">iterator</span></a><spa