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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/graph.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/graph.cpp')
-rw-r--r--src/boost/libs/graph/example/graph.cpp165
1 files changed, 165 insertions, 0 deletions
diff --git a/src/boost/libs/graph/example/graph.cpp b/src/boost/libs/graph/example/graph.cpp
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+//=======================================================================
+// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
+// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
+//
+// 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 <vector>
+#include <utility>
+#include <algorithm>
+
+#include <boost/graph/adjacency_list.hpp>
+
+using namespace boost;
+using namespace std;
+
+typedef property< vertex_color_t, default_color_type,
+ property< vertex_distance_t, int,
+ property< vertex_degree_t, int,
+ property< vertex_in_degree_t, int,
+ property< vertex_out_degree_t, int > > > > >
+ VertexProperty;
+typedef property< edge_weight_t, int > EdgeProperty;
+typedef adjacency_list< vecS, vecS, bidirectionalS, VertexProperty,
+ EdgeProperty >
+ Graph;
+
+template < class Graph > void print(Graph& g)
+{
+ typename Graph::vertex_iterator i, end;
+ typename Graph::out_edge_iterator ei, edge_end;
+ for (boost::tie(i, end) = vertices(g); i != end; ++i)
+ {
+ cout << *i << " --> ";
+ for (boost::tie(ei, edge_end) = out_edges(*i, g); ei != edge_end; ++ei)
+ cout << target(*ei, g) << " ";
+ cout << endl;
+ }
+}
+
+std::size_t myrand(std::size_t N)
+{
+ std::size_t ret = rand() % N;
+ // cout << "N = " << N << " rand = " << ret << endl;
+ return ret;
+}
+
+template < class Graph > bool check_edge(Graph& g, std::size_t a, std::size_t b)
+{
+ typename Graph::adjacency_iterator vi, viend, found;
+ boost::tie(vi, viend) = adjacent_vertices(vertex(a, g), g);
+
+ found = find(vi, viend, vertex(b, g));
+ if (found == viend)
+ return false;
+
+ return true;
+}
+
+int main(int, char*[])
+{
+ std::size_t N = 5;
+
+ Graph g(N);
+ int i;
+
+ bool is_failed = false;
+
+ for (i = 0; i < 6; ++i)
+ {
+ std::size_t a = myrand(N), b = myrand(N);
+ while (a == b)
+ b = myrand(N);
+ cout << "edge edge (" << a << "," << b << ")" << endl;
+ // add edges
+ add_edge(a, b, g);
+ is_failed = is_failed || (!check_edge(g, a, b));
+ }
+
+ if (is_failed)
+ cerr << " Failed." << endl;
+ else
+ cerr << " Passed." << endl;
+
+ print(g);
+
+ // remove_edge
+ for (i = 0; i < 2; ++i)
+ {
+ std::size_t a = myrand(N), b = myrand(N);
+ while (a == b)
+ b = myrand(N);
+ cout << "remove edge (" << a << "," << b << ")" << endl;
+ remove_edge(a, b, g);
+ is_failed = is_failed || check_edge(g, a, b);
+ }
+ if (is_failed)
+ cerr << " Failed." << endl;
+ else
+ cerr << " Passed." << endl;
+
+ print(g);
+
+ // add_vertex
+ is_failed = false;
+ std::size_t old_N = N;
+ std::size_t vid = add_vertex(g);
+ std::size_t vidp1 = add_vertex(g);
+
+ N = num_vertices(g);
+ if ((N - 2) != old_N)
+ cerr << " Failed." << endl;
+ else
+ cerr << " Passed." << endl;
+
+ is_failed = false;
+ for (i = 0; i < 2; ++i)
+ {
+ std::size_t a = myrand(N), b = myrand(N);
+ while (a == vid)
+ a = myrand(N);
+ while (b == vidp1)
+ b = myrand(N);
+ cout << "add edge (" << vid << "," << a << ")" << endl;
+ cout << "add edge (" << vid << "," << vidp1 << ")" << endl;
+ add_edge(vid, a, g);
+ add_edge(b, vidp1, g);
+ is_failed = is_failed || !check_edge(g, vid, a);
+ is_failed = is_failed || !check_edge(g, b, vidp1);
+ }
+ if (is_failed)
+ cerr << " Failed." << endl;
+ else
+ cerr << " Passed." << endl;
+ print(g);
+
+ // clear_vertex
+ std::size_t c = myrand(N);
+ is_failed = false;
+ clear_vertex(c, g);
+
+ if (out_degree(c, g) != 0)
+ is_failed = true;
+
+ cout << "Removing vertex " << c << endl;
+ remove_vertex(c, g);
+
+ old_N = N;
+ N = num_vertices(g);
+
+ if ((N + 1) != old_N)
+ is_failed = true;
+
+ if (is_failed)
+ cerr << " Failed." << endl;
+ else
+ cerr << " Passed." << endl;
+
+ print(g);
+
+ return 0;
+}