text: 
  #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.
  
  // $Id$
  // $Date$
  // $Revision$
  
  #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 bx { 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
  