diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/graph/example/graph.cpp | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
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.cpp | 165 |
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 new file mode 100644 index 000000000..ee2de06c6 --- /dev/null +++ b/src/boost/libs/graph/example/graph.cpp @@ -0,0 +1,165 @@ +//======================================================================= +// 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; +} |