nputIterator</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="id-1.3.37.6.6.3.4"></a><h2>Description</h2>
<p>
            The <code class="computeroutput">last_value</code> class was the default <code class="computeroutput">Combiner</code> template parameter
            type for signals in the original Signals library.
            Signals2 uses <a clas