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2 #ifndef BOOST_MPL_MAP_AUX_INSERT_IMPL_HPP_INCLUDED
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3 #define BOOST_MPL_MAP_AUX_INSERT_IMPL_HPP_INCLUDED
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4
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5 // Copyright Aleksey Gurtovoy 2003-2004
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6 // Copyright David Abrahams 2003-2004
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7 //
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8 // Distributed under the Boost Software License, Version 1.0.
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9 // (See accompanying file LICENSE_1_0.txt or copy at
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10 // http://www.boost.org/LICENSE_1_0.txt)
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11 //
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12 // See http://www.boost.org/libs/mpl for documentation.
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13
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14 // $Id$
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15 // $Date$
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16 // $Revision$
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17
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18 #include <boost/mpl/insert_fwd.hpp>
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19 #include <boost/mpl/next_prior.hpp>
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20 #include <boost/mpl/map/aux_/contains_impl.hpp>
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21 #include <boost/mpl/map/aux_/item.hpp>
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22 #include <boost/mpl/map/aux_/tag.hpp>
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23 #include <boost/mpl/aux_/na.hpp>
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24 #include <boost/mpl/aux_/config/typeof.hpp>
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25
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26 namespace boost { namespace mpl {
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27
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28 namespace aux {
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29 template< typename Map, typename Pair >
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30 struct map_insert_impl
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31 : if_<
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32 contains_impl<aux::map_tag>::apply<Map,Pair>
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33 , Map
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34 #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
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35 , m_item<
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36 typename Pair::first
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37 , typename Pair::second
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38 , Map
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39 >
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40 #else
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41 , m_item<
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42 Map::order::value
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43 , typename Pair::first
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44 , typename Pair::second
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45 , Map
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46 >
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47 #endif
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48 >
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49 {
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50 };
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51 }
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52
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53 template<>
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54 struct insert_impl< aux::map_tag >
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55 {
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56 template<
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57 typename Map
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58 , typename PosOrKey
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59 , typename KeyOrNA
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60 >
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61 struct apply
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62 : aux::map_insert_impl<
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63 Map
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64 , typename if_na<KeyOrNA,PosOrKey>::type
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65 >
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66 {
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67 };
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68 };
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69
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70 }}
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71
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72 #endif // BOOST_MPL_MAP_AUX_INSERT_IMPL_HPP_INCLUDED
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