typename </span><span class=identifier>IteratorT</span><span class=special>&gt;
        </span><span class=keyword>void
        </span><span class=identifier>do_action</span><span class=special>(
            </span><span class=identifier>ActorT </span><span class=keyword>const</span><span class=special>&amp;       </span><span class=identifier>actor</span><span class=special>,
            </span><span class=identifier>AttrT </span><span class=keyword>const</span><span class=special>&amp;        </span><span