From 4673c796aaadd5cab6ef62a72a35d64ff8f7b347 Mon Sep 17 00:00:00 2001
From: Jeremiah Willcock <jewillco@osl.iu.edu>
Date: Fri, 8 Oct 2010 18:06:41 +0000
Subject: [PATCH] Merged r65836 (fix for #4715) from trunk; refs #4715

[SVN r65839]
---
 include/boost/graph/named_function_params.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/boost/graph/named_function_params.hpp b/include/boost/graph/named_function_params.hpp
index 47535fbd..e08c5c4c 100644
--- a/include/boost/graph/named_function_params.hpp
+++ b/include/boost/graph/named_function_params.hpp
@@ -392,8 +392,8 @@ BOOST_BGL_DECLARE_NAMED_PARAMS
 
     template <typename ArgType, typename Prop, typename Graph, bool Exists>
     struct override_const_property_t {
-      typedef ArgType result_type;
-      result_type operator()(const Graph&, const typename boost::add_reference<ArgType>::type a) const {return a;}
+      typedef typename boost::remove_const<ArgType>::type result_type;
+      result_type operator()(const Graph&, const ArgType& a) const {return a;}
     };
 
     template <typename ArgType, typename Prop, typename Graph>