Hi... I want to calculate diameter and girth of a graph using BGL so i m taking http://www.cs.ualberta.ca/~ghali/courses/texts/BGL/html/girth.cpp.html#pred_... as a reference. I have already created graph using adjacency_list Now i m not able to understand how to use :- typedef boost::v_property<long> dist_t; boost::property_map<Graph*, dist_t>::type d_map; typedef boost::u_property<vertex_descriptor> pred_t; boost::property_map<Graph*, pred_t>::type p_map; And for what it stands for ... Here i m not using #include <boost/graph/stanford_graph.hpp> Also let me know where it is being defined.. Is there any alternative to calculate diameter and girth -- View this message in context: http://www.nabble.com/Problem-in-cal-diameter-and-girth-using-BGL-tf4486815.... Sent from the Boost - Users mailing list archive at Nabble.com.