 class="special">&lt;</span><span class="identifier">callable</span><span class="special">::</span><span class="identifier">test12</span><span class="special">,</span> <span class="keyword">void</span> <span class="special">(</span>   <span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span> <span class="keyword">const</span><span class="special">*)&gt;::</span><span class="identifier">value</span> <span class="special">==</span> <span class="keyword">true</span><span 