 (graph, *)
    (visitor, *)
    (root_vertex, *)
    (index_map, *)
    (color_map, *)
  )
''') -->
<!-- @test('compile') -->
</div>
<div class="section" id="signature-matching-and-overloading">
<h4>2.1.5.6&nbsp;&nbsp;&nbsp;Signature Matching and Overloading</h4>
<p>In fact, the function signature is so general that any call to
<tt class="docutils literal">depth_first_search</tt> with fewer than five arguments will match
our function, provided we pass <em>something</em> for the required
<tt class="docutils