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#ifndef BOOST_MPL_IDENTITY_HPP_INCLUDED
#define BOOST_MPL_IDENTITY_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: identity.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
// $Revision: 49267 $
#include <boost/mpl/aux_/na_spec.hpp>
#include <boost/mpl/aux_/lambda_support.hpp>
namespace boost { namespace mpl {
template<
typename BOOST_MPL_AUX_NA_PARAM(T)
>
struct identity
{
typedef T type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(1, identity, (T))
};
template<
typename BOOST_MPL_AUX_NA_PARAM(T)
>
struct make_identity
{
typedef identity<T> type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(1, make_identity, (T))
};
BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, identity)
BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, make_identity)
}}
#endif // BOOST_MPL_IDENTITY_HPP_INCLUDED
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