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//=======================================================================
// 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 <fstream>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/graph_utility.hpp>
using namespace boost;
template < typename T >
std::istream & operator >> (std::istream & in, std::pair < T, T > &p) {
in >> p.first >> p.second;
return in;
}
int
main()
{
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
> graph_type;
std::ifstream file_in("makefile-dependencies.dat");
typedef graph_traits < graph_type >::vertices_size_type size_type;
size_type n_vertices;
file_in >> n_vertices; // read in number of vertices
graph_type
g(n_vertices); // create graph with n vertices
// Read in edges
graph_traits < graph_type >::vertices_size_type u, v;
while (file_in >> u)
if (file_in >> v)
add_edge(u, v, g);
else
break;
assert(num_vertices(g) == 15);
assert(num_edges(g) == 19);
return 0;
}
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