williamr@4: 
williamr@4: #ifndef BOOST_MPL_VECTOR_AUX_EMPTY_HPP_INCLUDED
williamr@4: #define BOOST_MPL_VECTOR_AUX_EMPTY_HPP_INCLUDED
williamr@4: 
williamr@4: // Copyright Aleksey Gurtovoy 2000-2004
williamr@4: //
williamr@4: // Distributed under the Boost Software License, Version 1.0. 
williamr@4: // (See accompanying file LICENSE_1_0.txt or copy at 
williamr@4: // http://www.boost.org/LICENSE_1_0.txt)
williamr@4: //
williamr@4: // See http://www.boost.org/libs/mpl for documentation.
williamr@4: 
williamr@4: // $Source: /cvsroot/boost/boost/boost/mpl/vector/aux_/empty.hpp,v $
williamr@4: // $Date: 2004/09/02 15:41:19 $
williamr@4: // $Revision: 1.5 $
williamr@4: 
williamr@4: #include <boost/mpl/empty_fwd.hpp>
williamr@4: #include <boost/mpl/bool.hpp>
williamr@4: #include <boost/mpl/vector/aux_/tag.hpp>
williamr@4: #include <boost/mpl/aux_/config/typeof.hpp>
williamr@4: #include <boost/mpl/aux_/config/ctps.hpp>
williamr@4: #include <boost/type_traits/is_same.hpp>
williamr@4: 
williamr@4: namespace boost { namespace mpl {
williamr@4: 
williamr@4: #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
williamr@4: 
williamr@4: template<>
williamr@4: struct empty_impl< aux::vector_tag >
williamr@4: {
williamr@4:     template< typename Vector > struct apply
williamr@4:         : is_same<
williamr@4:               typename Vector::lower_bound_
williamr@4:             , typename Vector::upper_bound_
williamr@4:             >
williamr@4:     {
williamr@4:     };
williamr@4: };
williamr@4: 
williamr@4: #else
williamr@4: 
williamr@4: template<>
williamr@4: struct empty_impl< aux::vector_tag<0> >
williamr@4: {
williamr@4:     template< typename Vector > struct apply
williamr@4:         : true_
williamr@4:     {
williamr@4:     };
williamr@4: };
williamr@4: 
williamr@4: #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
williamr@4: 
williamr@4: template< long N >
williamr@4: struct empty_impl< aux::vector_tag<N> >
williamr@4: {
williamr@4:     template< typename Vector > struct apply
williamr@4:         : false_
williamr@4:     {
williamr@4:     };
williamr@4: };
williamr@4: 
williamr@4: #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
williamr@4: 
williamr@4: #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
williamr@4: 
williamr@4: }}
williamr@4: 
williamr@4: #endif // BOOST_MPL_VECTOR_AUX_EMPTY_HPP_INCLUDED