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_HAS_KEY_10022005_1617)
8 #define FUSION_HAS_KEY_10022005_1617
9 
10 #include <boost/fusion/support/config.hpp>
11 #include <boost/mpl/has_key.hpp>
12 #include <boost/fusion/sequence/intrinsic/has_key.hpp>
13 
14 namespace boost { namespace mpl
15 {
16     template <typename Tag>
17     struct has_key_impl;
18 
19     template <>
20     struct has_key_impl<fusion::fusion_sequence_tag>
21     {
22         template <typename Sequence, typename Key>
23         struct apply : fusion::result_of::has_key<Sequence, Key> {};
24     };
25 }}
26 
27 #endif
28 
29