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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_EMPTY_10022005_1619) | |
8 | #define FUSION_EMPTY_10022005_1619 | |
9 | ||
10 | #include <boost/fusion/support/config.hpp> | |
11 | #include <boost/mpl/empty.hpp> | |
12 | #include <boost/fusion/sequence/intrinsic/empty.hpp> | |
13 | ||
14 | namespace boost { namespace mpl | |
15 | { | |
16 | template <typename Tag> | |
17 | struct empty_impl; | |
18 | ||
19 | template <> | |
20 | struct empty_impl<fusion::fusion_sequence_tag> | |
21 | { | |
22 | template <typename Sequence> | |
23 | struct apply : fusion::result_of::empty<Sequence> {}; | |
24 | }; | |
25 | }} | |
26 | ||
27 | #endif |