//=======================================================================
// Copyright 2001 Jeremy G. Siek, Andrew Lumsdaine, Lie-Quan Lee, 
//
// This file is part of the Boost Graph Library
//
// You should have received a copy of the License Agreement for the
// Boost Graph Library along with the software; see the file LICENSE.
// If not, contact Office of Research, Indiana University,
// Bloomington, IN 47405.
//
// Permission to modify the code and to distribute the code is
// granted, provided the text of this NOTICE is retained, a notice if
// the code was modified is included with the above COPYRIGHT NOTICE
// and with the COPYRIGHT NOTICE in the LICENSE file, and that the
// LICENSE file is distributed with the modified code.
//
// LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.
// By way of example, but not limitation, Licensor MAKES NO
// REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
// PARTICULAR PURPOSE OR THAT THE USE OF THE LICENSED SOFTWARE COMPONENTS
// OR DOCUMENTATION WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS, TRADEMARKS
// OR OTHER RIGHTS.
//=======================================================================
#include <boost/config.hpp>
#include <iostream>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/prim_minimum_spanning_tree.hpp>

int
main()
{
  using namespace boost;
  typedef adjacency_list < vecS, vecS, undirectedS,
    property<vertex_distance_t, int>, property < edge_weight_t, int > > Graph;
  typedef std::pair < int, int >E;
  const int num_nodes = 5;
  E edges[] = { E(0, 2), E(1, 3), E(1, 4), E(2, 1), E(2, 3),
    E(3, 4), E(4, 0)
  };
  int weights[] = { 1, 1, 2, 7, 3, 1, 1 };
#ifdef BOOST_MSVC
  Graph g(num_nodes);
  property_map<Graph, edge_weight_t>::type weightmap = get(edge_weight, g); 
  for (std::size_t j = 0; j < sizeof(edges) / sizeof(E); ++j) {
    graph_traits<Graph>::edge_descriptor e; bool inserted;
    tie(e, inserted) = add_edge(edges[j].first, edges[j].second, g);
    weightmap[e] = weights[j];
  }
#else
  Graph g(edges, edges + sizeof(edges) / sizeof(E), weights, num_nodes);
  property_map<Graph, edge_weight_t>::type weightmap = get(edge_weight, g);
#endif
  std::vector < graph_traits < Graph >::vertex_descriptor >
    p(num_vertices(g));

#ifdef BOOST_MSVC
  property_map<Graph, vertex_distance_t>::type distance = get(vertex_distance, g);
  property_map<Graph, vertex_index_t>::type indexmap = get(vertex_index, g);
  prim_minimum_spanning_tree
    (g, *vertices(g).first, &p[0], distance, weightmap, indexmap, 
     default_dijkstra_visitor());
#else
  prim_minimum_spanning_tree(g, &p[0]);
#endif

  for (std::size_t i = 0; i != p.size(); ++i)
    if (p[i] != i)
      std::cout << "parent[" << i << "] = " << p[i] << std::endl;
    else
      std::cout << "parent[" << i << "] = no parent" << std::endl;

  return EXIT_SUCCESS;
}
