1 | /*============================================================================= |
---|---|
2 | Copyright (c) 2011 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 | |
8 | #if !defined(BOOST_FUSION_SINGLE_VIEW_ADVANCE_IMPL_JUL_07_2011_1348PM) |
9 | #define BOOST_FUSION_SINGLE_VIEW_ADVANCE_IMPL_JUL_07_2011_1348PM |
10 | |
11 | #include <boost/fusion/support/config.hpp> |
12 | #include <boost/mpl/plus.hpp> |
13 | |
14 | namespace boost { namespace fusion |
15 | { |
16 | struct single_view_iterator_tag; |
17 | |
18 | template <typename SingleView, typename Pos> |
19 | struct single_view_iterator; |
20 | |
21 | namespace extension |
22 | { |
23 | template<typename Tag> |
24 | struct advance_impl; |
25 | |
26 | template<> |
27 | struct advance_impl<single_view_iterator_tag> |
28 | { |
29 | template<typename Iterator, typename Dist> |
30 | struct apply |
31 | { |
32 | typedef single_view_iterator< |
33 | typename Iterator::single_view_type, |
34 | typename mpl::plus<typename Iterator::position, Dist>::type> |
35 | type; |
36 | |
37 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
38 | static type |
39 | call(Iterator const& i) |
40 | { |
41 | return type(i.view); |
42 | } |
43 | }; |
44 | }; |
45 | } |
46 | |
47 | }} |
48 | |
49 | #endif |
50 |