Pls. Ignore the mail. The error due to a typo. Thanks sandeep On Thu, Mar 26, 2009 at 3:57 PM, Sandeep Gupta <gupta.sandeep@gmail.com> wrote:

Hi,  Attached below is the code to call Dijkstra over property_map data structures. The current definition of associative property map is incompatible for dijkstra. Somehow there is mismatch with respect to operator[]. Attach below is the code and the error.

std::map<vertex_t, vertex_t> pred;  boost::associative_property_map< std::map<vertex_t, vertex_t> >    preds(pred);

 std::map<vertex_t, double> dist;  boost::associative_property_map< std::map<vertex_t, double> >    dists(dist);

 std::map<vertex_t, double> weight;  boost::associative_property_map< std::map<vertex_t, double> >    weights(weight);

 vertex_t v;  //vertex_t v1 = preds[v];   dijkstra_shortest_paths(tg, v,                           predecessor_map(preds).                           weight_map(weights).                           distance_map(dists)                           );

Error: /home/sandeep/Computing/boost_1_38_0/boost/property_map.hpp:314: error: no match for ‘operator[]’ in ‘(const boost::associative_property_map<std::map<unsigned int, double, std::less<unsigned int>, std::allocator<std::pair<const unsigned int, double> > > >&)((const boost::associative_property_map<std::map<unsigned int, double, std::less<unsigned int>, std::allocator<std::pair<const unsigned int, double> > > >*)(& pa))[k]’ /home/sandeep/Computing/boost_1_38_0/boost/property_map.hpp:458: note: candidates are: typename UniquePairAssociativeContainer::value_type::second_type& boost::associative_property_map<UniquePairAssociativeContainer>::operator[](const typename UniquePairAssociativeContainer::key_type&) const [with UniquePairAssociativeContainer = std::map<unsigned int, double, std::less<unsigned int>, std::allocator<std::pair<const unsigned int, double> > >]

Thanks sandeep