Dave Abrahams wrote:
on Mon Oct 24 2011, lcaminiti <lorcaminiti-AT-gmail.com> wrote:
Hello all,
The following parameter type requirement:
(required (graph, *) ) (optional (root_vertex, (typename boost::graph_traits<graph_type>::vertex_descriptor), *boost::vertices(graph).first) )
Generates a GCC error:
dfs.05.cpp:40: error: ‘graph_type’ was not declared in this scope
Yeah.... I'm guessing this is what graphs::graph::_ is all about, but according to revision control, Daniel made this happen, and there's basically no documentation for it. Daniel?
Looking at the code expanded by the macros: namespace graphs { namespace tag { struct graph { static char const* keyword_name() { return "graph"; } typedef boost::parameter::value_type< boost::mpl::_2, graph, boost::parameter::void_ > _; typedef boost::parameter::value_type< boost::mpl::_2, graph, boost::parameter::void_ > _1; }; } namespace { ::boost::parameter::keyword<tag::graph> const& _graph = ::boost::parameter::keyword<tag::graph>::instance; } } So it should be graphs::tag::graph::_ instead of graph_type but I still get the errors: $ g++ -Wall -I../../../../../boost-trunk.cygwin dfs.06.cpp ../../../../../boost-trunk.cygwin/boost/parameter/value_type.hpp: In instantiation of ‘boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’: ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:30: instantiated from ‘boost::graph_traits<boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_> >’ dfs.06.cpp:85: instantiated from here ../../../../../boost-trunk.cygwin/boost/parameter/value_type.hpp:60: error: no type named ‘binding’ in ‘struct mpl_::arg<2>’ ../../../../../boost-trunk.cygwin/boost/parameter/value_type.hpp:62: error: no type named ‘binding’ in ‘struct mpl_::arg<2>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp: In instantiation of ‘boost::graph_traits<boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_> >’: dfs.06.cpp:85: instantiated from here ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:30: error: no type named ‘vertex_descriptor’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:31: error: no type named ‘edge_descriptor’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:32: error: no type named ‘adjacency_iterator’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:33: error: no type named ‘out_edge_iterator’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:34: error: no type named ‘in_edge_iterator’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:35: error: no type named ‘vertex_iterator’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:36: error: no type named ‘edge_iterator’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:38: error: no type named ‘directed_category’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:39: error: no type named ‘edge_parallel_category’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:40: error: no type named ‘traversal_category’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:42: error: no type named ‘vertices_size_type’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:43: error: no type named ‘edges_size_type’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ ../../../../../boost-trunk.cygwin/boost/graph/graph_traits.hpp:44: error: no type named ‘degree_size_type’ in ‘struct boost::parameter::value_type<mpl_::arg<2>, graphs::tag::graph, boost::parameter::void_>’ dfs.06.cpp:85: error: invalid combination of multiple type-specifiers dfs.06.cpp:85: error: expected `::' before ‘,’ token dfs.06.cpp:85: error: expected identifier before ‘,’ token dfs.06.cpp:85: error: template argument 3 is invalid dfs.06.cpp:85: error: expected `::' before ‘{’ token dfs.06.cpp:85: error: expected class-name before ‘{’ token dfs.06.cpp: In function ‘ResultType graphs::boost_param_default_85depth_first_search(ResultType (*)(), const Args&, long int, graph_type&, visitor_type&, boost::parameter::aux::use_default_tag)’: dfs.06.cpp:85: error: invalid combination of multiple type-specifiers dfs.06.cpp:85: error: ‘boost::parameter::aux::cast::remove_const’ is not a type dfs.06.cpp:85: error: invalid combination of multiple type-specifiers dfs.06.cpp:85: error: ‘boost::parameter::aux::cast::execute’ is not a type dfs.06.cpp: In function ‘ResultType graphs::boost_param_default_85depth_first_search(ResultType (*)(), const Args&, int, graph_type&, visitor_type&)’: dfs.06.cpp:85: error: invalid combination of multiple type-specifiers dfs.06.cpp:85: error: ‘boost::parameter::aux::cast::remove_const’ is not a type dfs.06.cpp:85: error: invalid combination of multiple type-specifiers dfs.06.cpp:85: error: ‘boost::parameter::aux::cast::execute’ is not a type ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp: At global scope: ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp: In instantiation of ‘boost::parameter::aux::argument_pack<graphs::boost_param_params_85depth_first_search<int>, const boost::adjacency_list<boost::vecS, boost::vecS, boost::directedS, boost::no_property, boost::no_property, boost::no_property, boost::listS>, const dfs_time_visitor<main::size_type*>, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_>’: dfs.06.cpp:132: instantiated from here ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp:157: error: no type named ‘parameter_spec0’ in ‘struct graphs::boost_param_params_85depth_first_search<int>’ ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp:158: error: no type named ‘parameter_spec0’ in ‘struct graphs::boost_param_params_85depth_first_search<int>’ ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp: In instantiation of ‘boost::parameter::aux::argument_pack<graphs::boost_param_params_85depth_first_search<int>, const boost::adjacency_list<boost::vecS, boost::vecS, boost::directedS, boost::no_property, boost::no_property, boost::no_property, boost::listS>, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_, boost::parameter::void_>’: dfs.06.cpp:132: instantiated from here ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp:157: error: no type named ‘parameter_spec0’ in ‘struct graphs::boost_param_params_85depth_first_search<int>’ ../../../../../boost-trunk.cygwin/boost/parameter/preprocessor.hpp:158: error: no type named ‘parameter_spec0’ in ‘struct graphs::boost_param_params_85depth_first_search<int>’ dfs.06.cpp: In function ‘int main()’: dfs.06.cpp:132: error: no matching function for call to ‘depth_first_search(main()::G&, dfs_time_visitor<size_type*>&)’ I'm lost... (BTW, the examples in documentation mix old and updated syntaxes so they don't quite compile... it'd be nice to update them). Thanks a lot! --Lorenzo -- View this message in context: http://boost.2283326.n4.nabble.com/boost-parameter-type-requirement-compiler... Sent from the Boost - Dev mailing list archive at Nabble.com.