ns that you would like to happen
  when the algorithm visits a vertex of the tour.
  The type <tt>TSPTourVisitor</tt> must be a model of the <a href="./TSPTourVisitor.html">TSP Tour Visitor</a>
  concept.
  The visitor object is passed by value <a
  href="#1">[1]</a>.<br>
</blockquote>

<H3>Complexity</H3>

<P>
The time complexity is <i>O(E log V)</i>.

<P>

<H3>Example</H3>

<P>
The file <a
href="../test/metric_tsp_approx.cpp"><TT>test/metric_tsp_approx.cpp</TT></a>
contains an example of using this TSP ap