liuxiaolong
2021-07-20 58d904a328c0d849769b483e901a0be9426b8209
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#ifndef BOOST_MPL_BEGIN_END_HPP_INCLUDED
#define BOOST_MPL_BEGIN_END_HPP_INCLUDED
 
// Copyright Aleksey Gurtovoy 2000-2004
//
// 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/libs/mpl for documentation.
 
// $Id$
// $Date$
// $Revision$
 
#include <boost/mpl/begin_end_fwd.hpp>
#include <boost/mpl/aux_/begin_end_impl.hpp>
#include <boost/mpl/sequence_tag.hpp>
#include <boost/mpl/aux_/na_spec.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
 
namespace boost { namespace mpl {
 
// agurt, 13/sep/02: switched from inheritance to typedef; MSVC is more
// happy this way (less ETI-related errors), and it doesn't affect 
// anything else
template<
      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
    >
struct begin
{
    typedef typename sequence_tag<Sequence>::type tag_;
    typedef typename begin_impl< tag_ >
        ::template apply< Sequence >::type type;
 
    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,begin,(Sequence))
};
 
template<
      typename BOOST_MPL_AUX_NA_PARAM(Sequence)
    >
struct end
{
    typedef typename sequence_tag<Sequence>::type tag_;
    typedef typename end_impl< tag_ >
        ::template apply< Sequence >::type type;
 
    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,end,(Sequence))
};
 
BOOST_MPL_AUX_NA_SPEC(1, begin)
BOOST_MPL_AUX_NA_SPEC(1, end)
 
}}
 
#endif // BOOST_MPL_BEGIN_END_HPP_INCLUDED