Hi Sandeep, It looks like there were some missing specializations of the hash template class. I've added them to graph/detail/adjacency_list.hpp. The changes are now in boost CVS. After making those changes I was able to get the adjacency_list.cpp file to compile and run properly with the OutEdgeList=hash_setS. On Fri, 23 Aug 2002, Sandeep Bhutani wrote: bhutan> Can you please help? Has anyone used the has feature bhutan> in the graph library. I had to edit the line number bhutan> 166 in adjacency_list.hpp to replace hash_set with bhutan> hash_map. You should not need to make that change. adjacency_list only uses hash_set now. Regards, Jeremy ---------------------------------------------------------------------- Jeremy Siek http://php.indiana.edu/~jsiek/ Ph.D. Student, Indiana Univ. B'ton email: jsiek@osl.iu.edu C++ Booster (http://www.boost.org) office phone: (812) 855-3608 ----------------------------------------------------------------------