ext-boost/boost/mpl/front.hpp

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#ifndef BOOST_MPL_FRONT_HPP_INCLUDED
#define BOOST_MPL_FRONT_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/front_fwd.hpp>
#include <boost/mpl/aux_/front_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 {
template<
typename BOOST_MPL_AUX_NA_PARAM(Sequence)
>
struct front
: front_impl< typename sequence_tag<Sequence>::type >
::template apply< Sequence >
{
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,front,(Sequence))
};
BOOST_MPL_AUX_NA_SPEC(1, front)
}}
#endif // BOOST_MPL_FRONT_HPP_INCLUDED