omputeroutput"><span class="identifier">wait_all_values</span><span class="special">()</span></code></a> and <a class="link" href="when_all__return_values.html#wait_all_values_source"><code class="computeroutput"><span class="identifier">wait_all_values_source</span><span class="special">()</span></code></a>
          by passing <code class="computeroutput"><span class="identifier">future</span><span class="special">&lt;</span>
          <span class="identifier">T</span> <span class="special">&gt;</span></c