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/config.hpp>
11#include <boost/mpl/bool.hpp>
12#include <boost/fusion/support/tag_of.hpp>
13
14namespace boost { namespace fusion
15{
16 // Special tags:
17 struct sequence_facade_tag;
18 struct iterator_range_tag;
19
20 namespace extension
21 {
22 template <typename Tag>
23 struct is_segmented_impl
24 {
25 template <typename Sequence>
26 struct apply
27 : mpl::false_
28 {};
29 };
30
31 template <>
32 struct is_segmented_impl<sequence_facade_tag>
33 {
34 template <typename Sequence>
35 struct apply : Sequence::is_segmented {};
36 };
37
38 template <>
39 struct is_segmented_impl<iterator_range_tag>;
40 }
41
42 namespace traits
43 {
44 template <typename Sequence>
45 struct is_segmented
46 : mpl::bool_<
47 (bool)extension::is_segmented_impl<typename traits::tag_of<Sequence>::type>::
48 template apply<Sequence>::type::value
49 >
50 {
51 };
52 }
53}}
54
55#endif
56

source code of boost/boost/fusion/support/is_segmented.hpp