2 #ifndef BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
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3 #define BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
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5 // Copyright Aleksey Gurtovoy 2002-2004
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7 // Distributed under the Boost Software License, Version 1.0.
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8 // (See accompanying file LICENSE_1_0.txt or copy at
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9 // http://www.boost.org/LICENSE_1_0.txt)
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11 // See http://www.boost.org/libs/mpl for documentation.
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13 // $Id: as_sequence.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
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14 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
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15 // $Revision: 49267 $
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17 #include <boost/mpl/is_sequence.hpp>
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18 #include <boost/mpl/single_view.hpp>
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19 #include <boost/mpl/if.hpp>
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20 #include <boost/mpl/aux_/na_spec.hpp>
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21 #include <boost/mpl/aux_/lambda_support.hpp>
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23 namespace boost { namespace mpl {
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26 typename BOOST_MPL_AUX_NA_PARAM(T)
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29 : if_< is_sequence<T>, T, single_view<T> >
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31 BOOST_MPL_AUX_LAMBDA_SUPPORT(1,as_sequence,(T))
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34 BOOST_MPL_AUX_NA_SPEC_NO_ETI(1, as_sequence)
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38 #endif // BOOST_MPL_AS_SEQUENCE_HPP_INCLUDED
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