On Nov 24, 2004, at 11:21 AM, TC MA wrote:

Still has a compile problem. interior_property_map.cpp is now:

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;

My mistake, this would have needed to be: typedef typename property_map::const_type NamePA;

But, this shows us just how different bundled

Thanks for your help. Now I try to add Vertex and Edge data with bundled properties. Source code is: #include #include <iostream> #include <algorithm> #include #include using namespace std; using namespace boost; struct VertexData { int x; int y; }; struct EdgeData { int weight; }; template void who_owes_who(EdgeIter first, EdgeIter last, const Graph& G) { // Access the propety acessor type for this graph while (first != last) { // fail to compile here!!! cout << G[source(*first, G)].x << "," << G[source(*first, G)].y << " joins " << G[target(*first, G)].x << "," << G[target(*first, G)].y << " weight " << G[edge(*first)].weight << endl; ++first; } } int main() { // Create the graph, and specify that we will use store the data. typedef adjacency_list MyGraphType; typedef pair Pair; // from <utility> 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); G[0].x = 0; G[0].y = 0; G[1].x = 1; G[1].y = 1; G[2].x = 2; G[2].y = 2; G[3].x = 3; G[3].y = 3; G[4].x = 4; G[4].y = 4; // store weights in edges graph_traits <MyGraphType>::edge_iterator ei, eend; int i = 0; for (tie(ei, eend) = edges(G); ei != eend; ++ei) { G[*ei].weight = i++; cout << "G[e] weight " << G[*ei].weight << endl; } who_owes_who(edges(G).first, edges(G).second, G); cout << endl; return 0; } Compile error is: 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&) [with EdgeIter = boost::detail::adj_list_edge_iterator, boost::detail::out_edge_iter<__gnu_cxx::__normal_iterator >*, std::vector >, std::allocator > > > >, size_t, boost::detail::edge_desc_impl, ptrdiff_t>, boost::adjacency_list >, Graph = main()::MyGraphType]': /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:113: instantiated from here /home/tcma/cpp/boosttcma/libs/graph/interior_property_map.cpp:64: error: no matching function for call to `edge(boost::detail::edge_desc_impl)' 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" ... properties are from the prior types of properties. The property_map class becomes harder to use, but in many cases is not necessary. At the end is my rewrite of the example, which illustrates how much less baggage we need to worry about when we go all-out with bundled parameters.

Doug

template void who_owes_who(EdgeIter first, EdgeIter last,

const Graph& G)

{ while (first != last) { cout << G[source(*first, G)].first_name << " owes " << G[target(*first, G)].first_name << " some money" << endl; ++first; } }

struct VertexData { string first_name; };

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);

G[0].first_name = "Jeremy"; G[1].first_name = "Rich"; G[2].first_name = "Andrew"; G[3].first_name = "Jeff"; G[4].first_name = "Doug";

who_owes_who(edges(G).first, edges(G).second, G); }

cout << endl;

return 0; }

===== TingChong Ma ______________________________________________________________________ Post your free ad now! http://personals.yahoo.ca