bla.cpp

#include <boost/graph/graph_traits.hpp>

#include <boost/parameter.hpp>


namespace graphs
{
  BOOST_PARAMETER_NAME(graph)    // Note: no semicolon
  BOOST_PARAMETER_NAME(visitor)
  BOOST_PARAMETER_NAME(root_vertex)
  BOOST_PARAMETER_NAME(index_map)
  BOOST_PARAMETER_NAME(color_map)
  
  BOOST_PARAMETER_FUNCTION(
      (void),                // 1. parenthesized return type
      depth_first_search,    // 2. name of the function template
      tag,                   // 3. namespace of tag types
      (required (graph, *) ) // 4. one required parameter, and
      (optional              //    four optional parameters, with defaults
       (root_vertex,
        (typename boost::graph_traits<graph_type>::vertex_descriptor),
        *vertices(graph).first)
        )
    )
  {
      // ... body of function goes here...
      // use graph, visitor, index_map, and color_map
  }
}

// namespace CGAL {
// BOOST_PARAMETER_NAME(graph)
// BOOST_PARAMETER_NAME(edge)
// BOOST_PARAMETER_NAME(root_vertex)



// BOOST_PARAMETER_FUNCTION(
//   (typename boost::graph_traits<typename boost::parameter::value_type<Args, tag::graph>::type>::edge_descriptor),
//   join_face, (tag), 
//   (required
//    (graph,*))
//   (optional
//    (root_vertex,
//     (typename boost::graph_traits<graph_type>::vertex_descriptor),
//     *vertices(graph).first)))
// {
//   //foobar;
// }

// } // CGAL