onst -&gt; size_t</span>
            </dt>
            <dd>queries the number of successors of the task</dd>
            <dt id="a050f76e486dea993a2b9d930539aad85">
              <span class="m-doc-wrap-bumper">auto <a href="#a050f76e486dea993a2b9d930539aad85" class="m-doc-self">num_predecessors</a>(</span><span class="m-doc-wrap">) const -&gt; size_t</span>
            </dt>
            <dd>queries the number of predecessors of the task</dd>
            <dt id="adb798808f6ef9b46399fae1c2dbed19b">
         