From b54e4b1b066481781443b2ff05a078281ddc3d4c Mon Sep 17 00:00:00 2001
From: Joel de Guzman <djowel@gmail.com>
Date: Sun, 3 Apr 2011 23:20:13 +0000
Subject: [PATCH] MPL bug workaround. Fixes Trac ticket: #5411

[SVN r70965]
---
 include/boost/fusion/view/joint_view/joint_view.hpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/boost/fusion/view/joint_view/joint_view.hpp b/include/boost/fusion/view/joint_view/joint_view.hpp
index e0d5c090..2a2051b1 100644
--- a/include/boost/fusion/view/joint_view/joint_view.hpp
+++ b/include/boost/fusion/view/joint_view/joint_view.hpp
@@ -1,7 +1,7 @@
 /*=============================================================================
     Copyright (c) 2001-2006 Joel de Guzman
 
-    Distributed under the Boost Software License, Version 1.0. (See accompanying 
+    Distributed under the Boost Software License, Version 1.0. (See accompanying
     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 ==============================================================================*/
 #if !defined(FUSION_JOINT_VIEW_07162005_0140)
@@ -50,7 +50,9 @@ namespace boost { namespace fusion
         typedef typename result_of::end<Sequence1>::type last_type;
         typedef typename result_of::begin<Sequence2>::type concat_type;
         typedef typename result_of::end<Sequence2>::type concat_last_type;
-        typedef typename mpl::plus<result_of::size<Sequence1>, result_of::size<Sequence2> >::type size;
+        typedef typename mpl::int_<
+            result_of::size<Sequence1>::value + result_of::size<Sequence2>::value>
+        size;
 
         joint_view(Sequence1& in_seq1, Sequence2& in_seq2)
             : seq1(in_seq1)