/*=============================================================================

    Copyright (c) 2001-2003 Joel de Guzman

    Copyright (c) 2004 Peder Holt



    Use, modification and distribution is subject to 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)

==============================================================================*/

#if !defined(FUSION_SEQUENCE_SIZE_HPP)

#define FUSION_SEQUENCE_SIZE_HPP



#include <boost/spirit/fusion/detail/config.hpp>

#include <boost/spirit/fusion/sequence/as_fusion_sequence.hpp>



namespace boost { namespace fusion

{

    ///////////////////////////////////////////////////////////////////////////

    //

    //  size metafunction

    //

    //      Get the size of a Sequence. Usage:

    //

    //          size<Sequence>::value

    //

    ///////////////////////////////////////////////////////////////////////////

    namespace meta

    {

        template <typename Tag>

        struct size_impl

        {

            template <typename Sequence>

            struct apply {};

        };



        template <typename Sequence>

        struct size

            : size_impl<typename as_fusion_sequence<Sequence>::type::tag>::

                template apply<typename as_fusion_sequence<Sequence>::type>

        {};

    }

}}



#endif

