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-rw-r--r--src/boost/libs/graph/example/biconnected_components.cpp73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/boost/libs/graph/example/biconnected_components.cpp b/src/boost/libs/graph/example/biconnected_components.cpp
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+++ b/src/boost/libs/graph/example/biconnected_components.cpp
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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 <vector>
+#include <list>
+#include <boost/graph/biconnected_components.hpp>
+#include <boost/graph/adjacency_list.hpp>
+#include <iterator>
+#include <iostream>
+
+namespace boost
+{
+ struct edge_component_t
+ {
+ enum
+ { num = 555 };
+ typedef edge_property_tag kind;
+ }
+ edge_component;
+}
+
+int
+main()
+{
+ using namespace boost;
+ typedef adjacency_list < vecS, vecS, undirectedS,
+ no_property, property < edge_component_t, std::size_t > >graph_t;
+ typedef graph_traits < graph_t >::vertex_descriptor vertex_t;
+ graph_t g(9);
+ add_edge(0, 5, g);
+ add_edge(0, 1, g);
+ add_edge(0, 6, g);
+ add_edge(1, 2, g);
+ add_edge(1, 3, g);
+ add_edge(1, 4, g);
+ add_edge(2, 3, g);
+ add_edge(4, 5, g);
+ add_edge(6, 8, g);
+ add_edge(6, 7, g);
+ add_edge(7, 8, g);
+
+ property_map < graph_t, edge_component_t >::type
+ component = get(edge_component, g);
+
+ std::size_t num_comps = biconnected_components(g, component);
+ std::cerr << "Found " << num_comps << " biconnected components.\n";
+
+ std::vector<vertex_t> art_points;
+ articulation_points(g, std::back_inserter(art_points));
+ std::cerr << "Found " << art_points.size() << " articulation points.\n";
+
+ std::cout << "graph A {\n" << " node[shape=\"circle\"]\n";
+
+ for (std::size_t i = 0; i < art_points.size(); ++i) {
+ std::cout << (char)(art_points[i] + 'A')
+ << " [ style=\"filled\", fillcolor=\"red\" ];"
+ << std::endl;
+ }
+
+ graph_traits < graph_t >::edge_iterator ei, ei_end;
+ for (boost::tie(ei, ei_end) = edges(g); ei != ei_end; ++ei)
+ std::cout << (char)(source(*ei, g) + 'A') << " -- "
+ << (char)(target(*ei, g) + 'A')
+ << "[label=\"" << component[*ei] << "\"]\n";
+ std::cout << "}\n";
+
+ return 0;
+}