ed <code class="computeroutput"><span class="identifier">identity</span></code> that aggregates
      together the calls to the specific functions (see also <a href="../../test/functor.cpp" target="_top"><code class="literal">functor.cpp</code></a>
      and <a href="../../test/identity.hpp" target="_top"><code class="literal">identity.hpp</code></a>):
    </p>
<p>
</p>
<pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">overloaded_functio