Re: [Boost-Users] BGL 1.30.0 upgrade problem

From: Jeff Holle (jeff.holle_at_[hidden])
Date: 2003-03-26 23:36:47

I avoid this error by commented out the the ASSERT on line 99 of 
boost_1_30_0/boost/graph/connected_components.hpp.
The program works as before, giving the correct answer.
I know this isn't a solution, so I really hope to hear the correct one...
Thanks in advance.

Jeff Holle wrote:

> Having switched from boost_1_29_0 to boost_1_30_0, code that was
> compiling and running now produces this error message:
>
> I'm using Mandrake linux 9.0 with the gcc v3.22 compiler.
>
> /home/jholle/boost_1_30_0/boost/graph/connected_components.hpp: In 
> function
>    `boost::property_traits<IndexMap>::value_type
>    boost::connected_components(const Graph&, ComponentMap) [with Graph =
>    boost::subgraph<boost::adjacency_list<boost::vecS, boost::vecS,
>    boost::directedS, boost::GraphvizVertexProperty,
>    boost::GraphvizEdgeProperty, boost::GraphvizGraphProperty,
> boost::listS> >,
>    ComponentMap =
>    boost::iterator_property_map<__gnu_cxx::__normal_iterator<size_t*,
>    std::vector<size_t, std::allocator<size_t> > >,
>   
> boost::subgraph_property_map<boost::subgraph<boost::adjacency_list<boost::vecS,
>    boost::vecS, boost::directedS, boost::GraphvizVertexProperty,
>    boost::GraphvizEdgeProperty, boost::GraphvizGraphProperty,
> boost::listS> >*,
>    boost::vec_adj_list_vertex_id_map<boost::GraphvizVertexProperty,
> size_t> >,
>    unsigned int, unsigned int&>]':
> BGLLayout.cpp:49:   instantiated from here
> /home/jholle/boost_1_30_0/boost/graph/connected_components.hpp:99: 
> `sizeof'
>    applied to incomplete type `boost::STATIC_ASSERTION_FAILURE<false>'
>
> The code that produced this error is:
>
> void
> BGLLayout::FindComponents(void)
> {
>   typedef vector<unsigned int> Ints;
>   Ints c(num_vertices(m_graph));
>   connected_components(m_graph, make_iterator_property_map(c.begin(),
> get(vertex_index, m_graph), c[0]));  << -- line 49 (error source)
>   m_componentStartVertex.clear();
>   unsigned int i=0;
>   for (Ints::const_iterator iter=c.begin(); iter != c.end(); ++iter,++i)
>     if (m_componentStartVertex.size() <= *iter)
>       m_componentStartVertex.push_back(i);
> }
>
> Note this code is largely taken from connected_components.cpp.
> Can anybody tell me what is wrong here?
>
>
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