Is a static instance of a stateful allocator the only way to make the BGL graph interface accept it with boost::container_gen, or is the use of a stateful allocator with the BGL possible? The reason this is necessary is that I'd like to wrap an array class (which isn't STL compatible) provided by a third party for use with the BGL so that I can navigate the array of vertices and edges as modeled by the graph it contains. This array class however is useless unless it receives a reference to an instance of the stateful allocator upon its' construction. Currently I have to hold a BGL graph in memory which contains vertex and edge array indices reflecting matching positions in instances of the third party array class (one for the vertices, one for all the edges). (Unrelatedly but possibly useful to know) Once this graph is complete, I need access to the arrays themselves to pass them on to other objects that are part of the third party library. Thanks, Geoff