From 7fccfd1f424fcee493f2e88e0c8d83cbe1d4d126 Mon Sep 17 00:00:00 2001
From: Jeremiah Willcock <jewillco@osl.iu.edu>
Date: Wed, 28 Mar 2012 20:56:44 +0000
Subject: [PATCH] Added graph property to serialization, and made default graph
 property no_property to allow serialization; fixes #5310

[SVN r77615]
---
 include/boost/graph/adj_list_serialize.hpp | 3 +++
 include/boost/graph/graph_traits.hpp       | 6 +++---
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/include/boost/graph/adj_list_serialize.hpp b/include/boost/graph/adj_list_serialize.hpp
index c1ff4111..01db5028 100644
--- a/include/boost/graph/adj_list_serialize.hpp
+++ b/include/boost/graph/adj_list_serialize.hpp
@@ -61,6 +61,8 @@ inline void save(
     ar << serialization::make_nvp("v" , indices[target(e,graph)]);
     ar << serialization::make_nvp("edge_property", get(edge_all_t(), graph, e) );
   }
+
+  ar << serialization::make_nvp("graph_property", get_property(graph, graph_all_t()) );
 }
 
 
@@ -95,6 +97,7 @@ inline void load(
     boost::tie(e,inserted) = add_edge(verts[u], verts[v], graph);
     ar >> serialization::make_nvp("edge_property", get(edge_all_t(), graph, e) );
   }
+  ar >> serialization::make_nvp("graph_property", get_property(graph, graph_all_t()) );
 }
 
 template<class Archive, class OEL, class VL, class D, class VP, class EP, class GP, class EL>
diff --git a/include/boost/graph/graph_traits.hpp b/include/boost/graph/graph_traits.hpp
index eb0232d8..625429e6 100644
--- a/include/boost/graph/graph_traits.hpp
+++ b/include/boost/graph/graph_traits.hpp
@@ -235,17 +235,17 @@ namespace boost {
     struct graph_property_type
       : boost::mpl::eval_if<detail::has_graph_property_type<G>,
                             detail::get_graph_property_type<G>,
-                            boost::mpl::void_> {};
+                            no_property> {};
     template <typename G>
     struct edge_property_type
       : boost::mpl::eval_if<detail::has_edge_property_type<G>,
                             detail::get_edge_property_type<G>,
-                            boost::mpl::void_> {};
+                            no_property> {};
     template <typename G>
     struct vertex_property_type
       : boost::mpl::eval_if<detail::has_vertex_property_type<G>,
                             detail::get_vertex_property_type<G>,
-                            boost::mpl::void_> {};
+                            no_property> {};
 
     template<typename G>
     struct graph_bundle_type {