al">::</span><span class="identifier">numeric_limits</span><span class="special">&lt;</span><span class="identifier">UnsignedInt</span><span class="special">&gt;::</span><span class="identifier">is_signed</span><span class="special">,</span> <span class="string">"Template argument UnsignedInt must not be signed."</span><span class="special">);</span>
<span class="keyword">public</span><span class="special">:</span>
   <span class="comment">/* details here */</span>
<span class="special">};</span>
</pre>
</d