Re: [Boost-users] [BGL] Free graph - double free or corruption

On Mon, 4 Jan 2010, Matthieu BOUSSARD wrote:

Hello,

I'm using BGL to construct an exploration graph. At each decision step I have to create a new graph. It seems that I'm not freeing correctly the memory, causing a memory leak. The name of a node in the graph is a pointer to a structure,

typedef adjacency_list >, property > >Graph;

I also use a map to find the vertex according to a given state typedef std::tr1::unordered_map state_vertex_map_t;

In the destructor of my planner object, every time I try to free anything (from the map or from the vertices of the graph) I'v got an "double free or corruption" error. Could you help me to find the way to free all the memory ? Thank you.

Does your planner object contain the graph? When exactly is the property data destroyed relative to the graph itself? You might be better off using boost::shared_ptr as your property type; copies (and explicit deallocation) will no longer be a problem in that case. -- Jeremiah Willcock