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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 const& f) | |
23 | : fun(f) | |
24 | {} | |
25 | ||
26 | Fun const& 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 const& f, mpl::true_) // segmented implementation | |
47 | { | |
48 | fusion::segmented_fold_until(seq, void_(), segmented_for_each_fun<F>(f)); | |
49 | } | |
50 | }}} | |
51 | ||
52 | #endif |