Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards


//  Boost string_algo library predicate_facade.hpp header file  ---------------------------//

//  Copyright Pavol Droba 2002-2003. Use, modification and
//  distribution is subject to the Boost Software License, Version
//  1.0. (See accompanying file LICENSE_1_0.txt or copy at

//  See for updates, documentation, and revision history.


#include <boost/algorithm/string/config.hpp>

 \file boost/algorith/string/predicate_facade.hpp
 This file containes predicate_facade definition. This template class is used
 to identify classification predicates, so they can be combined using
 composition operators.

namespace boost {
    namespace algorithm {

//  predicate facade ------------------------------------------------------//

        //! Predicate facade
            This class allows to recognize classification
            predicates, so that they can be combined using
            composition operators.
            Every classification predicate must be derived from this class.
        template<typename Derived>
        struct predicate_facade {};

    } // namespace algorithm
} // namespace boost