merge new MPL version from 'mplbook' branch

[SVN r24874]

test/pair_view.cpp

@@ -0,0 +1,32 @@
+
+// Copyright David Abrahams 2003-2004
+// Copyright Aleksey Gurtovoy 2004
+//
+// 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)
+//
+// See http://www.boost.org/libs/mpl for documentation.
+
+// $Source$
+// $Date$
+// $Revision$
+
+#include <boost/mpl/pair_view.hpp>
+#include <boost/mpl/list/list10_c.hpp>
+#include <boost/mpl/front.hpp>
+#include <boost/mpl/back.hpp>
+
+#include <boost/mpl/aux_/test.hpp>
+
+
+MPL_TEST_CASE()
+{
+    typedef list10_c<int,0,1,2,3,4,5,6,7,8,9> l1;
+    typedef list10_c<int,9,8,7,6,5,4,3,2,1,0> l2;
+    
+    typedef pair_view<l1,l2> view;
+    
+    MPL_ASSERT_RELATION( front<view>::type::first::value, ==, 0 );
+    MPL_ASSERT_RELATION( front<view>::type::second::value, ==, 9 );
+}