[857] | 1 |
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| 2 | #ifndef BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED
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| 3 | #define BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED
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| 4 |
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| 5 | // Copyright Aleksey Gurtovoy 2003-2004
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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 | // $Source: /cvsroot/boost/boost/boost/mpl/multiset/aux_/item.hpp,v $
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| 14 | // $Date: 2004/09/02 15:41:02 $
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| 15 | // $Revision: 1.2 $
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| 16 |
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| 17 | #include <boost/mpl/multiset/aux_/tag.hpp>
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| 18 | #include <boost/mpl/int.hpp>
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| 19 | #include <boost/mpl/aux_/type_wrapper.hpp>
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| 20 | #include <boost/mpl/aux_/yes_no.hpp>
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| 21 | #include <boost/mpl/aux_/value_wknd.hpp>
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| 22 | #include <boost/mpl/aux_/static_cast.hpp>
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| 23 | #include <boost/mpl/aux_/config/arrays.hpp>
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| 24 | #include <boost/mpl/aux_/config/msvc.hpp>
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| 25 | #include <boost/mpl/aux_/config/workaround.hpp>
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| 26 |
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| 27 | #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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| 28 | # include <boost/mpl/eval_if.hpp>
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| 29 | # include <boost/mpl/next.hpp>
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| 30 | # include <boost/type_traits/is_same.hpp>
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| 31 | #endif
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| 32 |
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| 33 |
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| 34 | namespace boost { namespace mpl {
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| 35 |
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| 36 | #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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| 37 |
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| 38 | template< typename T, typename Base >
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| 39 | struct ms_item
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| 40 | {
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| 41 | typedef aux::multiset_tag tag;
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| 42 |
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| 43 | template< typename U > struct prior_count
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| 44 | {
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| 45 | enum { msvc70_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(U*,0))) };
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| 46 | typedef int_< msvc70_wknd_ > count_;
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| 47 | typedef typename eval_if< is_same<T,U>, next<count_>, count_ >::type c_;
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| 48 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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| 49 | typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value>::type type;
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| 50 | #else
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| 51 | typedef char (&type)[BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value];
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| 52 | #endif
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| 53 | };
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| 54 |
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| 55 | template< typename U > struct prior_ref_count
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| 56 | {
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| 57 | typedef U (* u_)();
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| 58 | enum { msvc70_wknd_ = sizeof(Base::ref_key_count(BOOST_MPL_AUX_STATIC_CAST(u_,0))) };
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| 59 | typedef int_< msvc70_wknd_ > count_;
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| 60 | typedef typename eval_if< is_same<T,U>, next<count_>, count_ >::type c_;
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| 61 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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| 62 | typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value>::type type;
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| 63 | #else
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| 64 | typedef char (&type)[BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value];
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| 65 | #endif
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| 66 | };
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| 67 |
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| 68 | template< typename U >
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| 69 | static typename prior_count<U>::type key_count(U*);
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| 70 |
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| 71 | template< typename U >
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| 72 | static typename prior_ref_count<U>::type ref_key_count(U (*)());
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| 73 | };
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| 74 |
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| 75 | #else // BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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| 76 |
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| 77 | namespace aux {
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| 78 | template< typename U, typename Base >
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| 79 | struct prior_key_count
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| 80 | {
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| 81 | enum { msvc71_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<U>*,0))) };
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| 82 | typedef int_< msvc71_wknd_ > count_;
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| 83 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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| 84 | typedef typename aux::weighted_tag< BOOST_MPL_AUX_VALUE_WKND(count_)::value >::type type;
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| 85 | #else
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| 86 | typedef char (&type)[count_::value];
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| 87 | #endif
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| 88 | };
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| 89 | }
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| 90 |
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| 91 | template< typename T, typename Base >
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| 92 | struct ms_item
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| 93 | {
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| 94 | typedef aux::multiset_tag tag;
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| 95 |
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| 96 | enum { msvc71_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*,0))) + 1 };
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| 97 | typedef int_< msvc71_wknd_ > count_;
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| 98 | #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES)
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| 99 | static
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| 100 | typename aux::weighted_tag< BOOST_MPL_AUX_VALUE_WKND(count_)::value >::type
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| 101 | key_count(aux::type_wrapper<T>*);
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| 102 | #else
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| 103 | static char (& key_count(aux::type_wrapper<T>*) )[count_::value];
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| 104 | #endif
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| 105 |
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| 106 | template< typename U >
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| 107 | static typename aux::prior_key_count<U,Base>::type key_count(aux::type_wrapper<U>*);
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| 108 | };
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| 109 |
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| 110 | #endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
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| 111 |
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| 112 | }}
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| 113 |
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| 114 | #endif // BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED
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