e2e3ad6" class="m-doc-self">for_each_predecessor</a>(</span><span class="m-doc-wrap">V&amp;&amp; visitor) const</span></span>
            </h3>
            <p>applies an visitor callable to each predecessor of the task</p>
            <table class="m-table m-fullwidth m-flat">
              <thead>
                <tr><th colspan="2">Template parameters</th></tr>
              </thead>
              <tbody>
                <tr>
                  <td style="width: 1%">V</td>
                  <td>a callable 