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#ifndef BOOST_MPL_VECTOR_AUX_FRONT_HPP_INCLUDED
#define BOOST_MPL_VECTOR_AUX_FRONT_HPP_INCLUDED
// Copyright Aleksey Gurtovoy 2000-2008
//
// 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: front.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
// $Revision: 49267 $
#include <boost/mpl/front_fwd.hpp>
#include <boost/mpl/vector/aux_/at.hpp>
#include <boost/mpl/vector/aux_/tag.hpp>
#include <boost/mpl/aux_/nttp_decl.hpp>
#include <boost/mpl/aux_/config/typeof.hpp>
#include <boost/mpl/aux_/config/ctps.hpp>
namespace boost { namespace mpl {
#if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
template<>
struct front_impl< aux::vector_tag >
{
template< typename Vector > struct apply
: v_at<Vector,0>
{
};
};
#else
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template< BOOST_MPL_AUX_NTTP_DECL(long, n_) >
struct front_impl< aux::vector_tag<n_> >
{
template< typename Vector > struct apply
{
typedef typename Vector::item0 type;
};
};
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
#endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
}}
#endif // BOOST_MPL_VECTOR_AUX_FRONT_HPP_INCLUDED
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