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1 | // Boost string_algo library predicate_facade.hpp header file ---------------------------// |
2 | ||
3 | // Copyright Pavol Droba 2002-2003. | |
4 | // | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | ||
9 | // See http://www.boost.org/ for updates, documentation, and revision history. | |
10 | ||
11 | #ifndef BOOST_STRING_PREDICATE_FACADE_HPP | |
12 | #define BOOST_STRING_PREDICATE_FACADE_HPP | |
13 | ||
14 | #include <boost/algorithm/string/config.hpp> | |
15 | ||
16 | /* | |
17 | \file boost/algorith/string/predicate_facade.hpp | |
18 | This file contains predicate_facade definition. This template class is used | |
19 | to identify classification predicates, so they can be combined using | |
20 | composition operators. | |
21 | */ | |
22 | ||
23 | namespace boost { | |
24 | namespace algorithm { | |
25 | ||
26 | // predicate facade ------------------------------------------------------// | |
27 | ||
28 | //! Predicate facade | |
29 | /*! | |
30 | This class allows to recognize classification | |
31 | predicates, so that they can be combined using | |
32 | composition operators. | |
33 | Every classification predicate must be derived from this class. | |
34 | */ | |
35 | template<typename Derived> | |
36 | struct predicate_facade {}; | |
37 | ||
38 | } // namespace algorithm | |
39 | } // namespace boost | |
40 | ||
41 | ||
42 | #endif // BOOST_STRING_CLASSIFICATION_DETAIL_HPP |