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43 lines
889 B
C++
43 lines
889 B
C++
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#ifndef BOOST_MPL_EMPTY_SEQUENCE_HPP_INCLUDED
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#define BOOST_MPL_EMPTY_SEQUENCE_HPP_INCLUDED
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// Copyright Aleksey Gurtovoy 2004
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// Copyright Alexander Nasonov 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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// $Id$
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// $Date$
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// $Revision$
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#include <boost/mpl/size_fwd.hpp>
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#include <boost/mpl/int.hpp>
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#include <boost/mpl/iterator_tags.hpp>
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namespace boost { namespace mpl {
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struct empty_sequence
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{
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struct tag;
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struct begin { typedef random_access_iterator_tag category; };
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typedef begin end;
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};
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template<>
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struct size_impl<empty_sequence::tag>
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{
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template< typename Sequence > struct apply
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: int_<0>
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{
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};
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};
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}}
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#endif // #ifndef BOOST_MPL_EMPTY_SEQUENCE_HPP_INCLUDED
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