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1 | /*============================================================================= |
2 | Copyright (c) 2001-2011 Joel de Guzman | |
3 | ||
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_AT_10022005_1616) | |
8 | #define FUSION_AT_10022005_1616 | |
9 | ||
10 | #include <boost/fusion/support/config.hpp> | |
11 | #include <boost/mpl/at.hpp> | |
12 | #include <boost/fusion/sequence/intrinsic/value_at.hpp> | |
13 | ||
14 | namespace boost { | |
15 | namespace fusion | |
16 | { | |
17 | struct fusion_sequence_tag; | |
18 | } | |
19 | ||
20 | namespace mpl | |
21 | { | |
22 | template <typename Tag> | |
23 | struct at_impl; | |
24 | ||
25 | template <> | |
26 | struct at_impl<fusion::fusion_sequence_tag> | |
27 | { | |
28 | template <typename Sequence, typename N> | |
29 | struct apply : fusion::result_of::value_at<Sequence, N> {}; | |
30 | }; | |
31 | }} | |
32 | ||
33 | #endif | |
34 |