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1 | //======================================================================= |
2 | // Copyright 2001 Jeremy G. Siek, Andrew Lumsdaine, Lie-Quan Lee, | |
3 | // | |
4 | // Distributed under the Boost Software License, Version 1.0. (See | |
5 | // accompanying file LICENSE_1_0.txt or copy at | |
6 | // http://www.boost.org/LICENSE_1_0.txt) | |
7 | //======================================================================= | |
8 | #include <boost/config.hpp> | |
9 | #include <fstream> | |
10 | #include <boost/graph/adjacency_list.hpp> | |
11 | #include <boost/graph/graph_utility.hpp> | |
12 | ||
13 | using namespace boost; | |
14 | ||
15 | template < typename T > | |
16 | std::istream & operator >> (std::istream & in, std::pair < T, T > &p) { | |
17 | in >> p.first >> p.second; | |
18 | return in; | |
19 | } | |
20 | ||
21 | ||
22 | int | |
92f5a8d4 | 23 | main(int argc, const char** argv) |
7c673cae FG |
24 | { |
25 | typedef adjacency_list < | |
26 | listS, // Store out-edges of each vertex in a std::list | |
27 | vecS, // Store vertex set in a std::vector | |
28 | directedS // The graph is directed | |
29 | > graph_type; | |
30 | ||
92f5a8d4 | 31 | std::ifstream file_in(argc >= 2 ? argv[1] : "makefile-dependencies.dat"); |
7c673cae FG |
32 | typedef graph_traits < graph_type >::vertices_size_type size_type; |
33 | size_type n_vertices; | |
34 | file_in >> n_vertices; // read in number of vertices | |
35 | ||
36 | graph_type | |
37 | g(n_vertices); // create graph with n vertices | |
38 | ||
39 | // Read in edges | |
40 | graph_traits < graph_type >::vertices_size_type u, v; | |
41 | while (file_in >> u) | |
42 | if (file_in >> v) | |
43 | add_edge(u, v, g); | |
44 | else | |
45 | break; | |
46 | ||
47 | assert(num_vertices(g) == 15); | |
48 | assert(num_edges(g) == 19); | |
49 | return 0; | |
50 | } |