div role="tab-panel" class="tab-pane" id="virtual-sub-gcc-s">
          <pre data-src="../examples/virtual-sub-gcc.s"></pre>
        </div>
        <div role="tab-panel" class="tab-pane" id="virtual-sub-listing">
          <pre data-src="../examples/virtual-sub.listing"></pre>
        </div>
      </div>
    </div>

    <h2>Double Diamond Inheritance</h2>

    An example of the diamond problem:
    <div role="tabpanel">
      <!-- Nav tabs -->
      <ul class="nav nav-tabs" role="tablist">
        <li role=