I am trying to use the Boost Graph library bundled properties which is introduced in 1.32.0. I modify the sample program libs/graph/example/interior_property_map.cpp which then fail to compile. using namespace std; using namespace boost; using std::string; // create a tag for our new property enum vertex_first_name_t { vertex_first_name }; namespace boost { BOOST_INSTALL_PROPERTY(vertex, first_name); } struct vertexStruct { string name; }; template void who_owes_who(EdgeIter first, EdgeIter last, const Graph& G) { // Access the propety acessor type for this graph typedef typename property_map::const_type NamePA; NamePA name = get(vertex_first_name, G); typedef typename boost::property_traits<NamePA>::value_type NameType; NameType src_name, targ_name; while (first != last) { src_name = boost::get(name, source(*first,G)); targ_name = boost::get(name, target(*first,G)); cout << src_name << " owes " << targ_name << " some money" << endl; ++first; } } int main() { { // Create the graph, and specify that we will use std::string to // store the first name's. typedef adjacency_list MyGraphType; typedef pair Pair; Pair edge_array[11] = { Pair(0,1), Pair(0,2), Pair(0,3), Pair(0,4), Pair(2,0), Pair(3,0), Pair(2,4), Pair(3,1), Pair(3,4), Pair(4,0), Pair(4,1) }; MyGraphType G(5); for (int i=0; i<11; ++i) add_edge(edge_array[i].first, edge_array[i].second, G); MyGraphType::vertex_descriptor v = *vertices(G).first; G[v].name = "TingChong"; ++v; G[v].name = "Carmen"; who_owes_who(edges(G).first, edges(G).second, G); } cout << endl; return 0; } // compile output is: $ bjam ...found 372 targets... ...updating 4 targets... gcc-C++-action /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.test/gcc/debug/inlining-on/interior_property_map.o /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp: In function `void who_owes_who(EdgeIter, EdgeIter, const Graph&)': /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:73: error: invalid use of non-static data member `vertexStruct::name' /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:80: error: from this location /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:80: error: `vertexStruct::name' cannot appear in a constant-expression /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:80: error: template argument 2 is invalid /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:80: error: `const_type' does not name a type /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:82: error: `NamePA' undeclared (first use this function) /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:82: error: (Each undeclared identifier is reported only once for each function it appears in.) /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:82: error: expected `;' before "name" /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:84: error: template argument 1 is invalid /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:84: error: `value_type' does not name a type /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:86: error: `NameType' undeclared (first use this function) /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:86: error: expected `;' before "src_name" /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:89: error: `src_name' undeclared (first use this function) /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:89: error: `name' undeclared (first use this function) /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:90: error: `targ_name' undeclared (first use this function) set -e "g++" -c -Wall -ftemplate-depth-255 -g -O0 -Wno-inline -I"../../../bin/boost/libs/graph/example" -I "/home/tcma/cpp/boost_1_32_0" -o "/home/tcma/cpp/boosttcma/libs/graph/interior_property_map.test/gcc/debug/inlining-on/interior_property_map.o" "/home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp" "/usr/bin/objcopy" --set-section-flags .debug_str=contents,debug "/home/tcma/cpp/boosttcma/libs/graph/interior_property_map.test/gcc/debug/inlining-on/interior_property_map.o" ...failed gcc-C++-action /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.test/gcc/debug/inlining-on/interior_property_map.o... ...skipped /home/tcma/cpp/boosttcma/libs/graph/interior_property_map for lack of interior_property_map.o... ...skipped /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.run for lack of /home/tcma/cpp/boosttcma/libs/graph/interior_property_map... ...failed updating 1 target... ...skipped 3 targets... ===== TingChong Ma ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca