diff -r e1b950c65cb4 -r 837f303aceeb epoc32/include/stdapis/boost/mpl/aux_/at_impl.hpp
--- a/epoc32/include/stdapis/boost/mpl/aux_/at_impl.hpp	Wed Mar 31 12:27:01 2010 +0100
+++ b/epoc32/include/stdapis/boost/mpl/aux_/at_impl.hpp	Wed Mar 31 12:33:34 2010 +0100
@@ -1,8 +1,8 @@
 
-#ifndef BOOST_MPL_SET_AUX_AT_IMPL_HPP_INCLUDED
-#define BOOST_MPL_SET_AUX_AT_IMPL_HPP_INCLUDED
+#ifndef BOOST_MPL_AUX_AT_IMPL_HPP_INCLUDED
+#define BOOST_MPL_AUX_AT_IMPL_HPP_INCLUDED
 
-// Copyright Aleksey Gurtovoy 2003-2004
+// Copyright Aleksey Gurtovoy 2000-2004
 //
 // Distributed under the Boost Software License, Version 1.0. 
 // (See accompanying file LICENSE_1_0.txt or copy at 
@@ -10,31 +10,36 @@
 //
 // See http://www.boost.org/libs/mpl for documentation.
 
-// $Source: /cvsroot/boost/boost/boost/mpl/set/aux_/at_impl.hpp,v $
-// $Date: 2004/09/02 15:41:02 $
-// $Revision: 1.2 $
+// $Source: /cvsroot/boost/boost/boost/mpl/aux_/at_impl.hpp,v $
+// $Date: 2004/09/02 15:40:43 $
+// $Revision: 1.5 $
 
-#include <boost/mpl/at_fwd.hpp>
-#include <boost/mpl/set/aux_/has_key_impl.hpp>
-#include <boost/mpl/set/aux_/tag.hpp>
-#include <boost/mpl/if.hpp>
-#include <boost/mpl/void.hpp>
+#include <boost/mpl/begin_end.hpp>
+#include <boost/mpl/advance.hpp>
+#include <boost/mpl/deref.hpp>
+#include <boost/mpl/aux_/traits_lambda_spec.hpp>
 
 namespace boost { namespace mpl {
 
-template<>
-struct at_impl< aux::set_tag >
+// default implementation; conrete sequences might override it by 
+// specializing either the 'at_impl' or the primary 'at' template
+
+template< typename Tag >
+struct at_impl
 {
-    template< typename Set, typename T > struct apply
+    template< typename Sequence, typename N > struct apply
     {
-        typedef typename if_< 
-              has_key_impl<aux::set_tag>::apply<Set,T>
-            , T
-            , void_
-            >::type type;            
+        typedef typename advance<
+              typename begin<Sequence>::type
+            , N
+            >::type iter_;
+
+        typedef typename deref<iter_>::type type;
     };
 };
 
+BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2, at_impl)
+
 }}
 
-#endif // BOOST_MPL_SET_AUX_AT_IMPL_HPP_INCLUDED
+#endif // BOOST_MPL_AUX_AT_IMPL_HPP_INCLUDED