1 | /*============================================================================= |
2 | Copyright (c) 2001-2011 Joel de Guzman |
3 | Copyright (c) 2011 Eric Niebler |
4 | |
5 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
7 | ==============================================================================*/ |
8 | #if !defined(BOOST_FUSION_SINGLE_VIEW_BEGIN_IMPL_05052005_0305) |
9 | #define BOOST_FUSION_SINGLE_VIEW_BEGIN_IMPL_05052005_0305 |
10 | |
11 | #include <boost/fusion/support/config.hpp> |
12 | #include <boost/mpl/int.hpp> |
13 | |
14 | namespace boost { namespace fusion |
15 | { |
16 | struct single_view_tag; |
17 | |
18 | template <typename SingleView, typename Pos> |
19 | struct single_view_iterator; |
20 | |
21 | namespace extension |
22 | { |
23 | template <typename Tag> |
24 | struct begin_impl; |
25 | |
26 | template <> |
27 | struct begin_impl<single_view_tag> |
28 | { |
29 | template <typename Sequence> |
30 | struct apply |
31 | { |
32 | typedef single_view_iterator<Sequence, mpl::int_<0> > type; |
33 | |
34 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
35 | static type |
36 | call(Sequence& seq) |
37 | { |
38 | return type(seq); |
39 | } |
40 | }; |
41 | }; |
42 | } |
43 | }} |
44 | |
45 | #endif |
46 | |
47 | |
48 | |