al">(</span><span class="identifier">i</span><span class="special">)</span> <span class="special">!=</span> <span class="identifier">omap</span><span class="special">.</span><span class="identifier">end</span><span class="special">());</span>
      <span class="identifier">assert</span><span class="special">(</span><span class="identifier">umap</span><span class="special">.</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">i</span><span class="special">)</span>