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1 | // Copyright 2008-2010 Gordon Woodhull |
2 | // Distributed under the Boost Software License, Version 1.0. | |
3 | // (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
4 | ||
5 | #ifndef BOOST_MSM_MPL_GRAPH_SEARCH_COLORS_HPP_INCLUDED | |
6 | #define BOOST_MSM_MPL_GRAPH_SEARCH_COLORS_HPP_INCLUDED | |
7 | ||
8 | namespace boost { | |
9 | namespace msm { | |
10 | namespace mpl_graph { | |
11 | ||
12 | namespace search_colors { | |
13 | struct White {}; | |
14 | struct Gray {}; | |
15 | struct Black {}; | |
16 | } | |
17 | ||
18 | struct create_search_color_map : mpl::map<> {}; | |
19 | ||
20 | struct search_color_map_ops { | |
21 | template<typename Node, typename Color, typename State> | |
22 | struct set_color : | |
23 | mpl::insert<State, mpl::pair<Node, Color> > | |
24 | {}; | |
25 | template<typename Node, typename State> | |
26 | struct get_color : | |
27 | mpl::if_<mpl::has_key<State, Node>, | |
28 | mpl::at<State, Node>, | |
29 | search_colors::White> | |
30 | {}; | |
31 | }; | |
32 | ||
33 | ||
34 | } // namespace mpl_graph | |
35 | } // namespace msm | |
36 | } // namespace boost | |
37 | ||
38 | ||
39 | #endif // BOOST_MSM_MPL_GRAPH_SEARCH_COLORS_HPP_INCLUDED |