Hi, I'm getting the following error trying to iterate over adjacent vertices in boost_1_31 with VC++ 7.1: c:\boost_1_31_0\boost\mpl\aux_\preprocessed\plain\apply.hpp(50) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2701) I have noticed other similar problems reported in the list archive along with a request for a short example. Any advice would be appreciated. The following example demonstrates the problem, sufficiently briefly, I hope. -------------- CUT ------------------------------------------- #include #include typedef boost::property LocationEdgeProperty; typedef boost::adjacency_list LocationGraph; typedef boost::graph_traits<LocationGraph>::vertex_descriptor VertexDescriptor; typedef boost::graph_traits<LocationGraph>::adjacency_iterator AdjacencyIterator; void test() { LocationGraph graph; VertexDescriptor current = 0; std::pair neighbourRange = boost::adjacent_vertices(current, graph); // ICE here for (; neighbourRange.first != neighbourRange.second; neighbourRange.first++) { } } -------------- CUT ------------------------------------------- Regards, Finnegan