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 | #if !defined(BOOST_FUSION_SEGMENTED_FOR_EACH_HPP_INCLUDED) |
8 | #define BOOST_FUSION_SEGMENTED_FOR_EACH_HPP_INCLUDED |
9 | |
10 | #include <boost/fusion/support/config.hpp> |
11 | #include <boost/mpl/bool.hpp> |
12 | #include <boost/fusion/support/void.hpp> |
13 | #include <boost/fusion/algorithm/iteration/for_each_fwd.hpp> |
14 | #include <boost/fusion/support/segmented_fold_until.hpp> |
15 | |
16 | namespace boost { namespace fusion { namespace detail |
17 | { |
18 | template <typename Fun> |
19 | struct segmented_for_each_fun |
20 | { |
21 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
22 | explicit segmented_for_each_fun(Fun& f) |
23 | : fun(f) |
24 | {} |
25 | |
26 | Fun& fun; |
27 | |
28 | template <typename Sequence, typename State, typename Context> |
29 | struct apply |
30 | { |
31 | typedef void_ type; |
32 | typedef mpl::true_ continue_type; |
33 | |
34 | BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
35 | static type call(Sequence& seq, State const&, Context const&, segmented_for_each_fun const& fun) |
36 | { |
37 | fusion::for_each(seq, fun.fun); |
38 | return void_(); |
39 | } |
40 | }; |
41 | }; |
42 | |
43 | template <typename Sequence, typename F> |
44 | BOOST_CXX14_CONSTEXPR BOOST_FUSION_GPU_ENABLED |
45 | inline void |
46 | for_each(Sequence& seq, F& f, mpl::true_) // segmented implementation |
47 | { |
48 | fusion::segmented_fold_until(seq, void_(), segmented_for_each_fun<F>(f)); |
49 | } |
50 | }}} |
51 | |
52 | #endif |
53 | |