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
|
//=======================================================================
// Copyright 2001 Jeremy G. Siek, Andrew Lumsdaine, Lie-Quan Lee,
//
// 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 <fstream>
#include <string>
#include <boost/graph/adjacency_list.hpp>
using namespace boost;
template < typename Graph, typename VertexNamePropertyMap >
void read_graph_file(std::istream& graph_in, std::istream& name_in, Graph& g,
VertexNamePropertyMap name_map)
{
typedef typename graph_traits< Graph >::vertices_size_type size_type;
size_type n_vertices;
typename graph_traits< Graph >::vertex_descriptor u;
typename property_traits< VertexNamePropertyMap >::value_type name;
graph_in >> n_vertices; // read in number of vertices
for (size_type i = 0; i < n_vertices; ++i)
{ // Add n vertices to the graph
u = add_vertex(g);
name_in >> name;
put(name_map, u, name); // ** Attach name property to vertex u **
}
size_type src, targ;
while (graph_in >> src) // Read in edges
if (graph_in >> targ)
add_edge(src, targ, g); // add an edge to the graph
else
break;
}
template < typename Graph, typename VertexNameMap >
void print_dependencies(
std::ostream& out, const Graph& g, VertexNameMap name_map)
{
typename graph_traits< Graph >::edge_iterator ei, ei_end;
for (boost::tie(ei, ei_end) = edges(g); ei != ei_end; ++ei)
out << get(name_map, source(*ei, g)) << " -$>$ "
<< get(name_map, target(*ei, g)) << std::endl;
}
int main(int argc, const char** argv)
{
typedef adjacency_list< listS, // Store out-edges of each vertex in a
// std::list
vecS, // Store vertex set in a std::vector
directedS, // The graph is directed
property< vertex_name_t, std::string > // Add a vertex property
>
graph_type;
graph_type g; // use default constructor to create empty graph
const char* dep_file_name
= argc >= 2 ? argv[1] : "makefile-dependencies.dat";
const char* target_file_name
= argc >= 3 ? argv[2] : "makefile-target-names.dat";
std::ifstream file_in(dep_file_name), name_in(target_file_name);
if (!file_in)
{
std::cerr << "** Error: could not open file " << dep_file_name
<< std::endl;
return -1;
}
if (!name_in)
{
std::cerr << "** Error: could not open file " << target_file_name
<< std::endl;
return -1;
}
// Obtain internal property map from the graph
property_map< graph_type, vertex_name_t >::type name_map
= get(vertex_name, g);
read_graph_file(file_in, name_in, g, name_map);
print_dependencies(std::cout, g, get(vertex_name, g));
assert(num_vertices(g) == 15);
assert(num_edges(g) == 19);
return 0;
}
|
