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1
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2 #ifndef BOOST_MPL_PAIR_HPP_INCLUDED
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3 #define BOOST_MPL_PAIR_HPP_INCLUDED
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4
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5 // Copyright Aleksey Gurtovoy 2001-2004
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6 //
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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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10 //
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11 // See http://www.boost.org/libs/mpl for documentation.
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12
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13 // $Id$
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14 // $Date$
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15 // $Revision$
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16
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17 #include <boost/mpl/aux_/msvc_eti_base.hpp>
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18 #include <boost/mpl/aux_/na_spec.hpp>
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19 #include <boost/mpl/aux_/lambda_support.hpp>
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20 #include <boost/mpl/aux_/config/eti.hpp>
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21
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22 namespace boost { namespace mpl {
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23
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24 template<
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25 typename BOOST_MPL_AUX_NA_PARAM(T1)
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26 , typename BOOST_MPL_AUX_NA_PARAM(T2)
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27 >
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28 struct pair
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29 {
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30 typedef pair type;
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31 typedef T1 first;
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32 typedef T2 second;
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33
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34 BOOST_MPL_AUX_LAMBDA_SUPPORT(2,pair,(T1,T2))
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35 };
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36
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37 template<
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38 typename BOOST_MPL_AUX_NA_PARAM(P)
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39 >
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40 struct first
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41 {
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42 #if !defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
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43 typedef typename P::first type;
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44 #else
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45 typedef typename aux::msvc_eti_base<P>::first type;
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46 #endif
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47 BOOST_MPL_AUX_LAMBDA_SUPPORT(1,first,(P))
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48 };
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49
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50 template<
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51 typename BOOST_MPL_AUX_NA_PARAM(P)
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52 >
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53 struct second
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54 {
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55 #if !defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
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56 typedef typename P::second type;
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57 #else
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58 typedef typename aux::msvc_eti_base<P>::second type;
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59 #endif
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60 BOOST_MPL_AUX_LAMBDA_SUPPORT(1,second,(P))
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61 };
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62
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63
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64 BOOST_MPL_AUX_NA_SPEC_NO_ETI(2, pair)
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65 BOOST_MPL_AUX_NA_SPEC(1, first)
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66 BOOST_MPL_AUX_NA_SPEC(1, second)
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67
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68 }}
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69
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70 #endif // BOOST_MPL_PAIR_HPP_INCLUDED
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