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graph/examples/ordered_out_edges.cpp
Jeremy Siek d00ac86b85 new file
[SVN r8024]
2000-10-20 16:50:45 +00:00

82 lines
2.9 KiB
C++

//=======================================================================
// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
//
// 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, University of Notre Dame, Notre
// Dame, IN 46556.
//
// Permission to modify the code and to distribute modified code is
// granted, provided the text of this NOTICE is retained, a notice that
// 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 <iostream>
#include <functional>
#include <string>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/properties.hpp>
template <class StoredEdge>
struct order_by_name
: public std::binary_function<StoredEdge,StoredEdge,bool>
{
bool operator()(const StoredEdge& e1, const StoredEdge& e2) const {
return e1.get_target() < e2.get_target() || boost::get(boost::edge_name, e1) < boost::get(boost::edge_name, e2);
}
};
struct by_name {
template <class StoredEdge>
struct bind { typedef order_by_name<StoredEdge> type; };
};
namespace boost {
template <>
struct parallel_edge_traits<ordered_setS<by_name> > {
typedef allow_parallel_edge_tag type; };
}
int
main()
{
using namespace boost;
typedef property<edge_name_t, std::string> EdgeProperty;
typedef adjacency_list<ordered_setS<by_name>, vecS, undirectedS,
no_property, EdgeProperty> graph_type;
graph_type g;
add_edge(0, 1, EdgeProperty("joe"), g);
add_edge(0, 1, EdgeProperty("chandler"), g);
add_edge(1, 2, EdgeProperty("curly"), g);
add_edge(1, 3, EdgeProperty("dick"), g);
add_edge(2, 4, EdgeProperty("tom"), g);
add_edge(3, 4, EdgeProperty("harry"), g);
property_map<graph_type, vertex_index_t>::type id = get(vertex_index, g);
property_map<graph_type, edge_name_t>::type name = get(edge_name, g);
graph_traits<graph_type>::vertex_iterator i, end;
graph_traits<graph_type>::out_edge_iterator ei, edge_end;
for (boost::tie(i, end) = vertices(g); i != end; ++i) {
cout << id[*i] << " ";
for (boost::tie(ei, edge_end) = out_edges(*i, g); ei != edge_end; ++ei)
cout << " --" << name[*ei] << "--> " << id[target(*ei, g)] << " ";
cout << endl;
}
return 0;
}