#ifndef BOOST_MPL_EMPTY_HPP_INCLUDED #define BOOST_MPL_EMPTY_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: empty.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/empty_fwd.hpp> #include <boost/mpl/sequence_tag.hpp> #include <boost/mpl/aux_/empty_impl.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 empty : empty_impl< typename sequence_tag<Sequence>::type > ::template apply< Sequence > { BOOST_MPL_AUX_LAMBDA_SUPPORT(1,empty,(Sequence)) }; BOOST_MPL_AUX_NA_SPEC(1, empty) }} #endif // BOOST_MPL_EMPTY_HPP_INCLUDED