1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
// Copyright (C) 2007-2008 The Trustees of Indiana University.
// Use, modification and distribution is subject to 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/graph/use_mpi.hpp>
#include <boost/config.hpp>
#include <boost/throw_exception.hpp>
#include <boost/test/minimal.hpp>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/iteration_macros.hpp>
#include <string>
#include <iostream>
#ifdef BOOST_NO_EXCEPTIONS
void
boost::throw_exception(std::exception const& ex)
{
std::cout << ex.what() << std::endl;
abort();
}
#endif
using namespace boost;
/// City structure to be attached to each vertex
struct City {
City() {}
City(const std::string& name, int population = -1)
: name(name), population(population) { }
std::string name;
int population;
};
namespace boost { namespace graph {
/// Use the City name as a key for indexing cities in a graph
template<>
struct internal_vertex_name<City>
{
typedef multi_index::member<City, std::string, &City::name> type;
};
/// Allow the graph to build cities given only their names (filling in
/// the defaults for fields).
template<>
struct internal_vertex_constructor<City>
{
typedef vertex_from_name<City> type;
};
} } // end namespace boost::graph
/// Our road map, where each of the vertices are cities
typedef adjacency_list<vecS, vecS, directedS, City> RoadMap;
typedef graph_traits<RoadMap>::vertex_descriptor Vertex;
int test_main(int argc, char* argv[])
{
RoadMap map;
/// Create vertices for Bloomington, Indianapolis, Chicago
Vertex bloomington = add_vertex(City("Bloomington", 69291), map);
Vertex indianapolis = add_vertex(City("Indianapolis", 791926), map);
Vertex chicago = add_vertex(City("Chicago", 9500000), map);
BOOST_CHECK(add_vertex(City("Bloomington", 69291), map) == bloomington);
BGL_FORALL_VERTICES(city, map, RoadMap)
std::cout << map[city].name << ", population " << map[city].population
<< std::endl;
BOOST_CHECK(*find_vertex("Bloomington", map) == bloomington);
BOOST_CHECK(*find_vertex("Indianapolis", map) == indianapolis);
BOOST_CHECK(*find_vertex("Chicago", map) == chicago);
add_edge(bloomington, "Indianapolis", map);
add_edge("Indianapolis", chicago, map);
add_edge("Indianapolis", "Cincinnati", map);
BGL_FORALL_EDGES(road, map, RoadMap)
std::cout << map[source(road, map)].name << " -> "
<< map[target(road, map)].name << std::endl;
BOOST_CHECK(map[*find_vertex("Cincinnati", map)].population == -1);
return 0;
}
|
