Re: [Boost-users] Adjacency List vertex access

Well, I'm working with Boost 1.46.1, Visual Studio 2010, and I detect an error like yours. I don't understand why you need an iterator that point to a vertex. If you need it, I presume that you want to dereference it, obtaining the correspondent vertex_descriptor. The particular implementation of adjacency_list that you have choosed (vecS, vecS) implements a vertex_descriptor that corresponds to the index of the vertex. If you take a look at the definition of boost::vertex function you can see it: template inline typename Config::vertex_descriptor vertex(typename Config::vertices_size_type n, const vec_adj_list_impl&) { return n; } So, if you want to take the vertex_iterator that point to the N-th vertex, and you dereference it, you obtain simply N. Regards, Cosimo Calabrese Il 04/05/2011 22.19, Caro Jardinier ha scritto:

OK with version 1.42 (1.42.0-4 0 from Debian Wheezy) this works, but I get the Warning:

g++ test.cpp In file included from /usr/include/c++/4.3/backward/hash_set:64, from /usr/include/boost/pending/container_traits.hpp:23, from /usr/include/boost/graph/detail/adjacency_list.hpp:31, from /usr/include/boost/graph/adjacency_list.hpp:324, from test.cpp:1: /usr/include/c++/4.3/backward/backward_warning.h:33:2: warning: #warning This file includes at least one deprecated or antiquated header which may be removed without further notice at a future date. Please use a non-deprecated interface with equivalent functionality instead. For a listing of replacement headers and interfaces, consult the file backward_warning.h. To disable this warning use -Wno-deprecated.

-- View this message in context: http://boost.2283326.n4.nabble.com/Adjacency-List-vertex-access-tp3495589p34... Sent from the Boost - Users mailing list archive at Nabble.com.