filter and wilterwhatcomp cosmetic (style) fixes.
#ifndef BOOST_MPL_BACK_FWD_HPP_INCLUDED
#define BOOST_MPL_BACK_FWD_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: back_fwd.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
// $Revision: 49267 $
namespace boost { namespace mpl {
template< typename Tag > struct back_impl;
template< typename Sequence > struct back;
}}
#endif // BOOST_MPL_BACK_FWD_HPP_INCLUDED