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68 lines
1.5 KiB
68 lines
1.5 KiB
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#ifndef BOOST_MPL_VECTOR_AUX_EMPTY_HPP_INCLUDED |
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#define BOOST_MPL_VECTOR_AUX_EMPTY_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2000-2004 |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// See http://www.boost.org/libs/mpl for documentation. |
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// $Id: empty.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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// $Revision: 49267 $ |
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#include <boost/mpl/empty_fwd.hpp> |
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#include <boost/mpl/bool.hpp> |
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#include <boost/mpl/vector/aux_/tag.hpp> |
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#include <boost/mpl/aux_/config/typeof.hpp> |
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#include <boost/mpl/aux_/config/ctps.hpp> |
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#include <boost/type_traits/is_same.hpp> |
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namespace boost { namespace mpl { |
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#if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES) |
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template<> |
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struct empty_impl< aux::vector_tag > |
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{ |
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template< typename Vector > struct apply |
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: is_same< |
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typename Vector::lower_bound_ |
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, typename Vector::upper_bound_ |
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> |
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{ |
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}; |
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}; |
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#else |
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template<> |
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struct empty_impl< aux::vector_tag<0> > |
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{ |
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template< typename Vector > struct apply |
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: true_ |
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{ |
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}; |
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}; |
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#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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template< long N > |
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struct empty_impl< aux::vector_tag<N> > |
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{ |
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template< typename Vector > struct apply |
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: false_ |
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{ |
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}; |
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}; |
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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
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#endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES |
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}} |
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#endif // BOOST_MPL_VECTOR_AUX_EMPTY_HPP_INCLUDED
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