unctional.invocation.functions.invoke_fobj.example"></a></span><a class="link" href="invoke_fobj.html#fusion.functional.invocation.functions.invoke_fobj.example">Example</a>
          </h6>
<pre class="programlisting"><span class="keyword">struct</span> <span class="identifier">sub</span>
<span class="special">{</span>
    <span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Sig</span><span class="special">&gt;</span>
    <span