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//=======================================================================
// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//=======================================================================
#include <boost/config.hpp>
#include <iostream>
#include <functional>
#include <string>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/properties.hpp>
/*
Sample output:
0 --chandler--> 1 --joe--> 1
1 --chandler--> 0 --joe--> 0 --curly--> 2 --dick--> 3 --dick--> 3
2 --curly--> 1 --tom--> 4
3 --dick--> 1 --dick--> 1 --harry--> 4
4 --tom--> 2 --harry--> 3
name(0,1) = chandler
name(0,1) = chandler
name(0,1) = joe
*/
template <class StoredEdge>
struct order_by_name
: public std::binary_function<StoredEdge,StoredEdge,bool>
{
bool operator()(const StoredEdge& e1, const StoredEdge& e2) const {
// Order by target vertex, then by name.
// std::pair's operator< does a nice job of implementing
// lexicographical compare on tuples.
return std::make_pair(e1.get_target(), boost::get(boost::edge_name, e1))
< std::make_pair(e2.get_target(), boost::get(boost::edge_name, e2));
}
};
#if !defined BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
struct ordered_set_by_nameS { };
namespace boost {
template <class ValueType>
struct container_gen<ordered_set_by_nameS, ValueType> {
typedef std::multiset<ValueType, order_by_name<ValueType> > type;
};
}
#else
struct ordered_set_by_nameS {
template <class T>
struct bind_ { typedef std::multiset<T, order_by_name<T> > type; };
};
namespace boost {
template <> struct container_selector<ordered_set_by_nameS> {
typedef ordered_set_by_nameS type;
};
}
#endif
namespace boost {
template <>
struct parallel_edge_traits<ordered_set_by_nameS> {
typedef allow_parallel_edge_tag type;
};
}
int
main()
{
#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
std::cout << "This program requires partial specialization" << std::endl;
#else
using namespace boost;
typedef property<edge_name_t, std::string> EdgeProperty;
typedef adjacency_list<ordered_set_by_nameS, vecS, undirectedS,
no_property, EdgeProperty> graph_type;
graph_type g;
add_edge(0, 1, EdgeProperty("joe"), g);
add_edge(1, 2, EdgeProperty("curly"), g);
add_edge(1, 3, EdgeProperty("dick"), g);
add_edge(1, 3, EdgeProperty("dick"), g);
add_edge(2, 4, EdgeProperty("tom"), g);
add_edge(3, 4, EdgeProperty("harry"), g);
add_edge(0, 1, EdgeProperty("chandler"), 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) {
std::cout << id[*i] << " ";
for (boost::tie(ei, edge_end) = out_edges(*i, g); ei != edge_end; ++ei)
std::cout << " --" << name[*ei] << "--> " << id[target(*ei, g)] << " ";
std::cout << std::endl;
}
std::cout << std::endl;
bool found;
typedef graph_traits<graph_type> Traits;
Traits::edge_descriptor e;
Traits::out_edge_iterator e_first, e_last;
tie(e, found) = edge(0, 1, g);
if (found)
std::cout << "name(0,1) = " << name[e] << std::endl;
else
std::cout << "not found" << std::endl;
std::cout << std::endl;
tie(e_first, e_last) = edge_range(0, 1, g);
while (e_first != e_last)
std::cout << "name(0,1) = " << name[*e_first++] << std::endl;
#endif
return 0;
}
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