playing with a graph example...

From: artwisz_at_[hidden]
Date: 2001-03-25 15:28:46

Hello again,
I am having some strange behaviour with VC++...
I am playing with the interior_property_map.cpp example. Wrote a 
simple function to illustrate the case:

template<class Graph>
void tryIt(const Graph& g)
   {
   typedef typename property_map<Graph, vertex_first_name_t>
       ::const_type NamePA;
   NamePA name = get(vertex_first_name, g);
   string nm = boost::get(vertex_first_name, g, 1);
   }

and invoke 
   tryIt(G);
from main(). This works. But then comment out
   //NamePA name = get(vertex_first_name, g);
and I get the (abbreviated somehow) errors below. I would like to use 
the 3 argument get without getting the copy of the map.
Perhaps my library version is too old ?... 
TIA,

Artur

e:\c++lib\boost\property_map.hpp(283) : error C2676: 
binary '[' : 'const struct 
boost::vec_adj_list_vertex_property_map<class 
boost::adjacency_list<...>,class boost::adjacency_list<...> const 
&,struct 
boost::property<enum vertex_first_name_t,class 
std::basic_string<char,struct std::char_traits<char>,class 
std::allocator<char> >,struct boost::no_property>,enum 
vertex_first_name_t>' does not define this operator or a conversion 
to a type acceptable
 to the predefined operator
        e:\c++lib\boost\graph\detail\adjacency_list.hpp(1439) : see 
reference to function template instantiation 'class 
std::basic_string<...> __cdecl boost::get(const struct boost::put_get_
at_helper<class std::basic_string<...>,struct 
boost::vec_adj_list_vertex_property_map<class 
boost::adjacency_list<...>,class boost::adjacency_list<...> const 
&,struct boost::property<...>,struct boost::no_property>,enum 
vertex_first_name_t> > &,const int &)' being compiled