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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/graph/example/isomorphism.cpp
parentInitial commit. (diff)
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Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/graph/example/isomorphism.cpp')
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diff --git a/src/boost/libs/graph/example/isomorphism.cpp b/src/boost/libs/graph/example/isomorphism.cpp
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+// (C) Copyright Jeremy Siek 2001.
+// 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/isomorphism.hpp>
+#include <boost/graph/adjacency_list.hpp>
+
+#include <boost/graph/graph_utility.hpp>
+
+/*
+ Sample output:
+ isomorphic? 1
+ f: 9 10 11 0 1 3 2 4 6 8 7 5
+ */
+
+int main()
+{
+ using namespace boost;
+
+ const int n = 12;
+
+ typedef adjacency_list< vecS, listS, undirectedS,
+ property< vertex_index_t, int > >
+ graph_t;
+ graph_t g1(n), g2(n);
+
+ std::vector< graph_traits< graph_t >::vertex_descriptor > v1(n), v2(n);
+
+ property_map< graph_t, vertex_index_t >::type v1_index_map
+ = get(vertex_index, g1),
+ v2_index_map = get(vertex_index, g2);
+
+ graph_traits< graph_t >::vertex_iterator i, end;
+ int id = 0;
+ for (boost::tie(i, end) = vertices(g1); i != end; ++i, ++id)
+ {
+ put(v1_index_map, *i, id);
+ v1[id] = *i;
+ }
+ id = 0;
+ for (boost::tie(i, end) = vertices(g2); i != end; ++i, ++id)
+ {
+ put(v2_index_map, *i, id);
+ v2[id] = *i;
+ }
+ add_edge(v1[0], v1[1], g1);
+ add_edge(v1[1], v1[2], g1);
+ add_edge(v1[0], v1[2], g1);
+ add_edge(v1[3], v1[4], g1);
+ add_edge(v1[4], v1[5], g1);
+ add_edge(v1[5], v1[6], g1);
+ add_edge(v1[6], v1[3], g1);
+ add_edge(v1[7], v1[8], g1);
+ add_edge(v1[8], v1[9], g1);
+ add_edge(v1[9], v1[10], g1);
+ add_edge(v1[10], v1[11], g1);
+ add_edge(v1[11], v1[7], g1);
+
+ add_edge(v2[9], v2[10], g2);
+ add_edge(v2[10], v2[11], g2);
+ add_edge(v2[11], v2[9], g2);
+ add_edge(v2[0], v2[1], g2);
+ add_edge(v2[1], v2[3], g2);
+ add_edge(v2[3], v2[2], g2);
+ add_edge(v2[2], v2[0], g2);
+ add_edge(v2[4], v2[5], g2);
+ add_edge(v2[5], v2[7], g2);
+ add_edge(v2[7], v2[8], g2);
+ add_edge(v2[8], v2[6], g2);
+ add_edge(v2[6], v2[4], g2);
+
+ std::vector< graph_traits< graph_t >::vertex_descriptor > f(n);
+
+#if defined(BOOST_MSVC) && BOOST_MSVC <= 1300
+ bool ret = isomorphism(g1, g2,
+ make_iterator_property_map(f.begin(), v1_index_map, f[0]),
+ degree_vertex_invariant(), get(vertex_index, g1),
+ get(vertex_index, g2));
+#else
+ bool ret = isomorphism(g1, g2,
+ isomorphism_map(
+ make_iterator_property_map(f.begin(), v1_index_map, f[0])));
+#endif
+ std::cout << "isomorphic? " << ret << std::endl;
+
+ std::cout << "f: ";
+ for (std::size_t v = 0; v != f.size(); ++v)
+ std::cout << get(get(vertex_index, g2), f[v]) << " ";
+ std::cout << std::endl;
+
+ return 0;
+}