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::type d_map; typedef boost::u_property pred_t; boost::property_map::type p_map; And for what it stands for ... Here i m not using #include Also let me know where it is being defined.. Is there any alternative to calculate diameter and girth Thanks Abhishek Vyas Tata Consultancy Services Mailto: abhishek.v@tcs.com Website: http://www.tcs.com ____________________________________________ Experience certainty. IT Services Business Solutions Outsourcing ____________________________________________ =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you