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Diffstat (limited to 'src/boost/libs/graph/example/transpose-example.cpp')
-rw-r--r-- | src/boost/libs/graph/example/transpose-example.cpp | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/boost/libs/graph/example/transpose-example.cpp b/src/boost/libs/graph/example/transpose-example.cpp new file mode 100644 index 00000000..7378dd19 --- /dev/null +++ b/src/boost/libs/graph/example/transpose-example.cpp @@ -0,0 +1,49 @@ +//======================================================================= +// 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 <boost/graph/transpose_graph.hpp> +#include <boost/graph/adjacency_list.hpp> +#include <boost/graph/graph_utility.hpp> + +int +main() +{ + using namespace boost; + typedef adjacency_list < vecS, vecS, bidirectionalS, + property < vertex_name_t, char > > graph_t; + + enum { a, b, c, d, e, f, g, N }; + graph_t G(N); + property_map < graph_t, vertex_name_t >::type + name_map = get(vertex_name, G); + char name = 'a'; + graph_traits < graph_t >::vertex_iterator v, v_end; + for (boost::tie(v, v_end) = vertices(G); v != v_end; ++v, ++name) + name_map[*v] = name; + + typedef std::pair < int, int >E; + E edge_array[] = { E(a, c), E(a, d), E(b, a), E(b, d), E(c, f), + E(d, c), E(d, e), E(d, f), E(e, b), E(e, g), E(f, e), E(f, g) + }; + for (int i = 0; i < 12; ++i) + add_edge(edge_array[i].first, edge_array[i].second, G); + + print_graph(G, name_map); + std::cout << std::endl; + + graph_t G_T; + transpose_graph(G, G_T); + + print_graph(G_T, name_map); + + graph_traits < graph_t >::edge_iterator ei, ei_end; + for (boost::tie(ei, ei_end) = edges(G); ei != ei_end; ++ei) + assert(edge(target(*ei, G), source(*ei, G), G_T).second == true); + return 0; +} |