text: // (C) Copyright Andrew Sutton 2007
  //
  // Use, modification and distribution are subject to the
  // Boost Software License, Version 1.0 (See accompanying file
  // LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
  
  //[code_bron_kerbosch_print_cliques
  #include <iostream>
  
  #include <boost/graph/undirected_graph.hpp>
  #include <boost/graph/bron_kerbosch_all_cliques.hpp>
  
  #include "helper.hpp"
  
  using namespace std;
  using namespace boost;
  
  // The clique_printer is a visitor that will print the vertices that comprise
  // a clique. Note that the vertices are not given in any specific order.
  template <typename OutputStream>
  struct clique_printer
  {
      clique_printer(OutputStream& stream)
          : os(stream)
      { }
  
      template <typename Clique, typename Graph>
      void clique(const Clique& c, const Graph& g)
      {
          // Iterate over the clique and print each vertex within it.
          typename Clique::const_iterator i, end = c.end();
          for(i = c.begin(); i != end; ++i) {
              os << g[*i].name << " ";
          }
          os << endl;
      }
      OutputStream& os;
  };
  
  // The Actor type stores the name of each vertex in the graph.
  struct Actor
  {
      string name;
  };
  
  // Declare the graph type and its vertex and edge types.
  typedef undirected_graph<Actor> Graph;
  typedef graph_traits<Graph>::vertex_descriptor Vertex;
  typedef graph_traits<Graph>::edge_descriptor Edge;
  
  // The name map provides an abstract accessor for the names of
  // each vertex. This is used during graph creation.
  typedef property_map<Graph, string Actor::*>::type NameMap;
  
  int
  main(int argc, char *argv[])
  {
      // Create the graph and and its name map accessor.
      Graph g;
      NameMap nm(get(&Actor::name, g));
  
      // Read the graph from standard input.
      read_graph(g, nm, cin);
  
      // Instantiate the visitor for printing cliques
      clique_printer<ostream> vis(cout);
  
      // Use the Bron-Kerbosch algorithm to find all cliques, printing them
      // as they are found.
      bron_kerbosch_all_cliques(g, vis);
  
      return 0;
  }
  //]
  