1 // Boost string_algo library predicate_facade.hpp header file ---------------------------//
3 // Copyright Pavol Droba 2002-2003.
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)
9 // See http://www.boost.org/ for updates, documentation, and revision history.
11 #ifndef BOOST_STRING_PREDICATE_FACADE_HPP
12 #define BOOST_STRING_PREDICATE_FACADE_HPP
14 #include <boost/algorithm/string/config.hpp>
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.
26 // predicate facade ------------------------------------------------------//
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.
35 template<typename Derived>
36 struct predicate_facade {};
38 } // namespace algorithm
42 #endif // BOOST_STRING_CLASSIFICATION_DETAIL_HPP