Hi there, I am having a problem with Boost.MultiIndex (I'm using Boost 1.37). So the problem is the following: I am using a static data structure, an index which I use as my graph repository: /// Data member to represent the graph repository (using ordered_unique index) static graphIndex _graphRep; which is from the type graphIndex: ///ordered_unique Index in the data structure graph_hm typedef multi_index_container< graphMap, indexed_by< ordered_unique< BOOST_MULTI_INDEX_MEMBER(graphMap,string,_name) > >

graphIndex;

Here is the graphMap: /// GraphMap: Data Structure for setting an index in the uniqueGraphName and retrieving handler Graph_h struct graphMap { string _name; Graph _graph; /// Default Constructor graphMap(){} /// Constructor with parameters: initialize the name and graph graphMap(string uniqueGraphName, Graph graph) : _name(uniqueGraphName), _graph (graph) {} /// Constructor with parameters: initialize the name and graph graphMap(const graphMap &gm) : _name(gm._name), _graph (gm._graph) {} }; For manipulating the graphs, I use a Graph_h (handler), which does a copy from the graph from this repository, does the changes in the local copy, and then the user has to call commitChanges(); to apply it in the repository (which I am using the replace function from the MultiIndex to commit it). The problem it is that inside the commitChanges(); I can retrieve from the repository through the find function (from MultiIndex). But when I the main program, it does not work (remark: I am trying right after calling the commitChanges(); It founds the graph, but it seems to be the old one, and I cannot retrieve the nodes... Why is that happening? Here it is a stretch of code from the main: //Test of the commit if (graph_h.commitChanges()) cout << "Commit was successful!\n"; else cout << "Commit was unsuccessful!\n"; // Debug //Graph_h graph_h; //NodeIterator nodeIt; //Node_h node_h; graphIt it = DynamicGraphs::_graphRep.find("COI:0351-123-4555"); graph_h = Graph_h(it); //propertystream_h propS; propS = graph_h->lookupLocalProp("name"); p_h = propS.next(); cout << "DEBUG@main:right after the commit:_git " << p_h.value() <nodeIterator("Node:0351-123-4569"); if (!nodeIt) cout << "Node version was not found!"<nodeIterator("Node:0351-123-4569"); if (!nodeIt) cout << "Node version was not found!"<nodeIterator("Node:0351-123-4569"); if (!nodeIt) cout << "Node version was not found!"<http://dsl.gmx.de/?ac=OM.AD.PD003K11308T4569a