From 428762da2b07e45623d6422beb2e80b41e9c195a Mon Sep 17 00:00:00 2001
From: Jeremiah Willcock <jewillco@osl.iu.edu>
Date: Thu, 29 Mar 2012 18:42:53 +0000
Subject: [PATCH] Keeping tag values around to allow bundled properties

[SVN r77633]
---
 include/boost/graph/graph_test.hpp     | 10 +++++-----
 include/boost/graph/stanford_graph.hpp |  8 ++++++--
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/include/boost/graph/graph_test.hpp b/include/boost/graph/graph_test.hpp
index 7b3a5402..69d89f34 100644
--- a/include/boost/graph/graph_test.hpp
+++ b/include/boost/graph/graph_test.hpp
@@ -325,10 +325,10 @@ namespace boost {
 
     template <typename PropVal, typename PropertyTag>
     void test_readable_vertex_property_graph
-      (const std::vector<PropVal>& vertex_prop, PropertyTag, const Graph& g)
+      (const std::vector<PropVal>& vertex_prop, PropertyTag tag, const Graph& g)
     {
       typedef typename property_map<Graph, PropertyTag>::const_type const_Map;
-      const_Map pmap = get(PropertyTag(), g);
+      const_Map pmap = get(tag, g);
       typename std::vector<PropVal>::const_iterator i = vertex_prop.begin();
 
   for (typename boost::graph_traits<Graph>::vertex_iterator 
@@ -339,7 +339,7 @@ namespace boost {
          ++bgl_first_9) {
       //BGL_FORALL_VERTICES_T(v, g, Graph) {
         typename property_traits<const_Map>::value_type 
-          pval1 = get(pmap, v), pval2 = get(PropertyTag(), g, v);
+          pval1 = get(pmap, v), pval2 = get(tag, g, v);
         BOOST_CHECK(pval1 == pval2);
         BOOST_CHECK(pval1 == *i++);
       }
@@ -350,7 +350,7 @@ namespace boost {
       (const std::vector<PropVal>& vertex_prop, PropertyTag tag, Graph& g)
     {
       typedef typename property_map<Graph, PropertyTag>::type PMap;
-      PMap pmap = get(PropertyTag(), g);
+      PMap pmap = get(tag, g);
       typename std::vector<PropVal>::const_iterator i = vertex_prop.begin();
   for (typename boost::graph_traits<Graph>::vertex_iterator 
            bgl_first_9 = vertices(g).first, bgl_last_9 = vertices(g).second;
@@ -368,7 +368,7 @@ namespace boost {
       
       typename std::vector<PropVal>::const_iterator j = vertex_prop.begin();
       BGL_FORALL_VERTICES_T(v, g, Graph)
-        put(PropertyTag(), g, v, *j++);
+        put(tag, g, v, *j++);
       
       test_readable_vertex_property_graph(vertex_prop, tag, g);      
     }
diff --git a/include/boost/graph/stanford_graph.hpp b/include/boost/graph/stanford_graph.hpp
index 0bb798c0..89f5e34b 100644
--- a/include/boost/graph/stanford_graph.hpp
+++ b/include/boost/graph/stanford_graph.hpp
@@ -318,13 +318,15 @@ namespace boost {
   class sgb_vertex_util_map
     : public boost::put_get_helper<Ref, sgb_vertex_util_map<Tag, Ref> >
   {
+    Tag tag;
   public:
+    explicit sgb_vertex_util_map(Tag tag = Tag()): tag(tag) {}
     typedef boost::lvalue_property_map_tag category;
     typedef typename Tag::type value_type;
     typedef Vertex* key_type;
     typedef Ref reference;
     reference operator[](Vertex* v) const {
-      return get_util_field(v, Tag()); 
+      return get_util_field(v, tag); 
     }
   };
 
@@ -333,13 +335,15 @@ namespace boost {
   class sgb_edge_util_map
     : public boost::put_get_helper<Ref, sgb_edge_util_map<Tag, Ref> >
   {
+    Tag tag;
   public:
+    explicit sgb_edge_util_map(Tag tag = Tag()): tag(tag) {}
     typedef boost::lvalue_property_map_tag category;
     typedef typename Tag::type value_type;
     typedef Vertex* key_type;
     typedef Ref reference;
     reference operator[](const sgb_edge& e) const {
-      return get_util_field(e._arc, Tag()); 
+      return get_util_field(e._arc, tag); 
     }
   };