I'm trying to use Bundled properties with astar. But I get the following error, below. 1>C:\Program Files\Microsoft Visual Studio 9.0\VC\include\limits(109) : error C2440: '<function-style-cast>' : cannot convert from 'int' to 'C' 1> No constructor could take the source type, or constructor overload resolution was ambiguous 1> C:\Program Files\Microsoft Visual Studio 9.0\VC\include\limits(107) : while compiling class template member function 'C std::numeric_limits<_Ty>::max(void) throw()' 1> with 1> [ 1> _Ty=C 1> ] 1> C:\Boost\include\boost-1_36\boost/graph/astar_search.hpp(342) : see reference to class template instantiation 'std::numeric_limits<_Ty>' being compiled 1> with 1> [ 1> _Ty=C 1> ] I noticed that this is the same problem as a post from January 2008 (Date: 2008-01-09 17:56:40), but there was no reply posted. The source code is attached; I get the same error with Boost 1.36 or 1.37 Here are my structures: class EdgePropertyMap { public: cost weight; }; typedef boost::property_map::type WeightMap; WeightMap weightmap = boost::get(&EdgePropertyMap::weight, g); boost::astar_search (g, start, distance_heuristic(locations, goal), boost::visitor(astar_goal_visitor<vertex>(goal)). // Only the first of named parameters needs boost:: predecessor_map(&p[0]).distance_map(&d[0]) );//. Any help? Thanks, David ----- Earlier post -------------------------------------------------------------------------- Christopher Gay (cgay_at_[hidden]) Date: 2008-01-09 17:56:40 I'm having a problem implementing A*. I used Mr Beevers cities example as a spring board for my own version. I am using bundled properties and I am getting an error that I am unsure of how to correct. The error revolves around the CostMap template parameter for the astar_search. It typedefs the value_type to 'C' and the error tells me that I cannot convert int to 'C' in the std::numeric_limits<C>::max call in astar_dispatch2. I am not passing an object/container for the CostMap parameter. Attached are the files I am working with. Thanks for your help! Chris Gay