1 /*=============================================================================
2     Copyright (c) 2006 Eric Niebler
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_IS_SEGMENTED_03202006_0015)
8 #define FUSION_IS_SEGMENTED_03202006_0015
9 
10 #include <boost/fusion/support/tag_of.hpp>
11 
12 namespace boost { namespace fusion
13 {
14     // Special tags:
15     struct sequence_facade_tag;
16     struct boost_tuple_tag; // boost::tuples::tuple tag
17     struct boost_array_tag; // boost::array tag
18     struct mpl_sequence_tag; // mpl sequence tag
19     struct std_pair_tag; // std::pair tag
20     struct iterator_range_tag;
21 
22     namespace extension
23     {
24         template<typename Tag>
25         struct is_segmented_impl
26         {
27             template<typename Sequence>
28             struct apply
29               : mpl::false_
30             {};
31         };
32 
33         template<>
34         struct is_segmented_impl<iterator_range_tag>;
35     }
36 
37     namespace traits
38     {
39         template <typename Sequence>
40         struct is_segmented
41           : extension::is_segmented_impl<typename traits::tag_of<Sequence>::type>::
42                 template apply<Sequence>
43         {
44         };
45     }
46 }}
47 
48 #endif
49