<span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.signals2.signal.slot_call_iterator"></a><span class="identifier">slot_call_iterator</span><span class="special">;</span></p>
<p>
              The input iterator type passed to the combiner when the signal is invoked.
            </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="id-1.3.37.6.10.3.4.5"></a><h3>
<a name="boost.signals2.signalconstruct-copy-destruct"></a><code class="computeroutput">sig