boost/algorithm/string/yes_no_type.hpp

//  Boost string_algo library yes_no_type.hpp header file  ---------------------------//
//  Copyright Pavol Droba 2002-2003.
//
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)
//  See http://www.boost.org/ for updates, documentation, and revision history.
#ifndef BOOST_STRING_YES_NO_TYPE_DETAIL_HPP
#define BOOST_STRING_YES_NO_TYPE_DETAIL_HPP
namespace boost {
    namespace algorithm {
        // taken from boost mailing-list
        // when yes_no_type will become officially
        // a part of boost distribution, this header
        // will be deprecated
        template<int I> struct size_descriptor 
        {
            typedef char (& type)[I];
        }; 
        typedef size_descriptor<1>::type yes_type;
        typedef size_descriptor<2>::type no_type;
    } // namespace algorithm
} // namespace boost
#endif  // BOOST_STRING_YES_NO_TYPE_DETAIL_HPP