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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_FRONT_10022005_1618) | |
8 | #define FUSION_FRONT_10022005_1618 | |
9 | ||
10 | #include <boost/fusion/support/config.hpp> | |
11 | #include <boost/mpl/front.hpp> | |
12 | #include <boost/fusion/sequence/intrinsic/begin.hpp> | |
13 | #include <boost/fusion/iterator/value_of.hpp> | |
14 | ||
15 | namespace boost { namespace mpl | |
16 | { | |
17 | template <typename Tag> | |
18 | struct front_impl; | |
19 | ||
20 | template <> | |
21 | struct front_impl<fusion::fusion_sequence_tag> | |
22 | { | |
23 | template <typename Sequence> | |
24 | struct apply : | |
25 | fusion::result_of::value_of<typename fusion::result_of::begin<Sequence>::type> {}; | |
26 | }; | |
27 | }} | |
28 | ||
29 | #endif |