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Copy pathdelete_edge.cpp
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77 lines (59 loc) · 2.07 KB
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//=======================================================================
// Copyright 2018
// Authors: Rasmus Ahlberg
//
// 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 <iostream>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/graph_traits.hpp>
#include <boost/core/lightweight_test.hpp>
int main()
{
typedef int Vertex;
typedef int Edge;
typedef boost::adjacency_list< boost::setS, // Container type for edges
boost::vecS, // Container type for vertices
boost::directedS, // Param for
// directed/undirected/bidirectional
// graph
Vertex, // Type for the vertices
Edge // Type for the edges
>
Graph_t;
typedef Graph_t::edge_descriptor EdgeDesc;
typedef Graph_t::vertex_descriptor VertexType;
Graph_t m_graph;
VertexType v1 = boost::add_vertex(m_graph);
VertexType v2 = boost::add_vertex(m_graph);
VertexType v3 = boost::add_vertex(m_graph);
EdgeDesc ed1;
bool inserted1;
boost::tie(ed1, inserted1) = boost::add_edge(v3, v1, m_graph);
BOOST_TEST(inserted1);
static const int EDGE_VAL = 1234;
m_graph[ed1] = EDGE_VAL;
boost::remove_vertex(v2, m_graph);
std::cout << "ed1 " << m_graph[ed1] << std::endl;
BOOST_TEST(m_graph[ed1] == EDGE_VAL);
// https://github.com/boostorg/graph/issues/268
// 1. Undirected:
{
boost::adjacency_list<boost::setS, boost::vecS, boost::undirectedS> g;
boost::add_edge(2, 0, g);
boost::remove_vertex(1, g);
BOOST_TEST(num_vertices(g) == 2);
BOOST_TEST(num_edges(g) == 1);
}
// 2. Directed:
{
boost::adjacency_list<boost::setS, boost::vecS, boost::directedS> g;
boost::add_edge(2, 0, g);
boost::remove_vertex(1, g);
BOOST_TEST(num_vertices(g) == 2);
BOOST_TEST(num_edges(g) == 1);
}
return boost::report_errors();
}