#ifndef BOOST_MPL_PROTECT_HPP_INCLUDED

#define BOOST_MPL_PROTECT_HPP_INCLUDED

// Copyright Peter Dimov 2001

// Copyright Aleksey Gurtovoy 2002-2004

//

// 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/aux_/arity.hpp>

#include <boost/mpl/aux_/config/dtp.hpp>

#include <boost/mpl/aux_/nttp_decl.hpp>

#include <boost/mpl/aux_/na_spec.hpp>

namespace boost { namespace mpl {

template<

      typename BOOST_MPL_AUX_NA_PARAM(T)

    , int not_le_ = 0

    >

struct protect : T

{

#if BOOST_WORKAROUND(__EDG_VERSION__, == 238)

    typedef mpl::protect type;

#else

    typedef protect type;

#endif

};

#if defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)

namespace aux { 

template< BOOST_MPL_AUX_NTTP_DECL(int, N), typename T >

struct arity< protect<T>, N > 

    : arity<T,N>

{ 

};

} // namespace aux

#endif

BOOST_MPL_AUX_NA_SPEC_MAIN(1, protect)

#if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)

BOOST_MPL_AUX_NA_SPEC_TEMPLATE_ARITY(1, 1, protect)

#endif

}}

#endif // BOOST_MPL_PROTECT_HPP_INCLUDED