id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
7801	Access violation using edge function and stored_ra_edge_iter	Geoff Hammerle <geoff.hammerle@…>	Jeremiah Willcock	"I declare an adjacency_list as follows:

{{{
struct    MYvecS { }; 
template <class ValueType>
struct container_gen<MYvecS, ValueType> 
{
    typedef std::vector < ValueType, MyAllocator< ValueType > > type;
};
template <> struct parallel_edge_traits<MYvecS> { typedef allow_parallel_edge_tag type; };
namespace detail
{
    // allow random access to NXvecS stored elements
    template <> struct is_random_access<MYvecS> { enum { value = true }; typedef mpl::true_ type; };
}
}}}



{{{
typedef boost::adjacency_list < MYvecS,
                                MYvecS,
                                boost::undirectedS,
                                MYVertexType,
                                MYEdgeType,
                                no_property,
                                MYvecS
                                > MyGraphType;
}}}


I begin populating the graph with vertices and edges.  If I use the '''edge''' function, passing in two valid vertices that are in the graph, the call to '''StoredEdge(v)''' crashes.  

Referencing lines 312 thru 314 of '''detail\adjacency_list.hpp''', you'll see that when a single argument is passed to this method, the other two arguments assume default values.  In this case '''edge_vec = 0''' and during this method call, it dereferences '''edge_vec''' which is set to NULL, and hence the access violation.



"	Bugs	closed	To Be Determined	graph	Boost 1.52.0	Problem	fixed