1 /*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 ==============================================================================*/
7 #if !defined(FUSION_VALUE_AT_IMPL_05052005_0232)
8 #define FUSION_VALUE_AT_IMPL_05052005_0232
10 #include <boost/fusion/support/config.hpp>
11 #include <boost/mpl/at.hpp>
13 namespace boost { namespace fusion
19 template <typename Tag>
23 struct value_at_impl<vector_tag>
25 template <typename Sequence, typename N>
28 typedef typename mpl::at<typename Sequence::types, N>::type type;