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// (C) Copyright 2004 Douglas Gregor and Jeremy 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)
// NOTE: This test illustrates a longstanding bug in the
// adjacency_list class template. We do not test it because it will
// cause problems until we have time to fix the bug. Annoying? Yes.
#include <iostream>
#include <boost/graph/adjacency_list.hpp>
#include <boost/core/lightweight_test.hpp>
struct edge_prop
{
int weight;
};
int main(int, char*[])
{
{
typedef boost::adjacency_list< boost::vecS, boost::vecS,
boost::bidirectionalS, boost::no_property, edge_prop,
boost::no_property, boost::vecS >
graph;
typedef boost::graph_traits< graph >::edge_descriptor edge;
graph g(2);
edge_prop p1 = { 42 };
edge_prop p2 = { 17 };
add_edge(0, 1, p1, g);
add_edge(1, 0, p2, g);
edge e1 = boost::edge(0, 1, g).first;
edge e2 = boost::edge(1, 0, g).first;
BOOST_TEST(num_edges(g) == 2);
BOOST_TEST(g[e1].weight == 42);
BOOST_TEST(g[e2].weight == 17);
remove_edge(e1, g);
BOOST_TEST(num_edges(g) == 1);
// e2 has been invalidated, so grab it again
bool b2;
boost::tie(e2, b2) = boost::edge(1, 0, g);
BOOST_TEST(b2);
BOOST_TEST(g[e2].weight == 17);
/* Now remove the other edge. Here, the fact that
* stored_ra_edge_iterator keeps an index but does not update it
* when edges are removed. So, this will be incorrect but the
* error may not always show up (use an STL debug mode to see the
* error for sure.)
*/
remove_edge(e2, g);
}
return boost::report_errors();
}
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