count.hpp

来自「Boost provides free peer-reviewed portab」· HPP 代码 · 共 36 行

/*=============================================================================
    Copyright (c) 2001-2006 Joel de Guzman
    Copyright (c) 2007

    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)
==============================================================================*/
#if !defined(BOOST_FUSION_COUNT_09162005_0150)
#define BOOST_FUSION_COUNT_09162005_0150

#include <boost/fusion/algorithm/query/count_if.hpp>
#include <boost/fusion/algorithm/query/detail/count.hpp>

namespace boost { namespace fusion
{
    namespace result_of
    {
        template <typename Sequence, typename F>
        struct count
        {
            typedef int type;
        };
    }

    template <typename Sequence, typename T>
    inline int
    count(Sequence const& seq, T const& x)
    {
        detail::count_compare<T> f(x);
        return fusion::count_if(seq, f);
    }
}}

#endif