| 1 | /* | 
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| 2 | * SelectiveIterator_impl.hpp | 
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| 3 | * | 
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| 4 | *  Created on: Mar 17, 2010 | 
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| 5 | *      Author: crueger | 
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| 6 | */ | 
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| 7 |  | 
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| 8 | #ifndef SELECTIVEITERATOR_IMPL_HPP_ | 
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| 9 | #define SELECTIVEITERATOR_IMPL_HPP_ | 
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| 10 |  | 
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| 11 | #include "Helpers/helpers.hpp" | 
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| 12 |  | 
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| 13 | template<class _Target, | 
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| 14 | class _Container, | 
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| 15 | class _Descriptor> | 
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| 16 | SelectiveIterator<_Target,_Container,_Descriptor>::SelectiveIterator(_Descriptor _descr, _Container &_content) : | 
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| 17 | descr(_descr.get_impl()), | 
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| 18 | index(0), | 
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| 19 | content(_content) | 
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| 20 | { | 
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| 21 | state = content.begin(); | 
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| 22 | advanceState(); | 
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| 23 | } | 
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| 24 |  | 
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| 25 | template<class _Target, | 
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| 26 | class _Container, | 
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| 27 | class _Descriptor> | 
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| 28 | SelectiveIterator<_Target,_Container,_Descriptor>::SelectiveIterator(_Descriptor _descr, _Container &_content, SelectiveIterator<_Target,_Container,_Descriptor>::Iter _state) : | 
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| 29 | state(_state), | 
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| 30 | descr(_descr.get_impl()), | 
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| 31 | index(0), | 
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| 32 | content(_content) | 
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| 33 | { | 
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| 34 | advanceState(); | 
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| 35 | } | 
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| 36 |  | 
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| 37 | template<class _Target, | 
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| 38 | class _Container, | 
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| 39 | class _Descriptor> | 
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| 40 | SelectiveIterator<_Target,_Container,_Descriptor>::SelectiveIterator(const SelectiveIterator<_Target,_Container,_Descriptor>& rhs) : | 
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| 41 | state(rhs.state), | 
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| 42 | descr(rhs.descr), | 
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| 43 | index(rhs.index), | 
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| 44 | content(rhs.content) | 
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| 45 | {} | 
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| 46 |  | 
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| 47 | template<class _Target, | 
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| 48 | class _Container, | 
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| 49 | class _Descriptor> | 
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| 50 | SelectiveIterator<_Target,_Container,_Descriptor>& SelectiveIterator<_Target,_Container,_Descriptor>::operator=(const SelectiveIterator<_Target,_Container,_Descriptor>& rhs) | 
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| 51 | { | 
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| 52 | if(&rhs!=this){ | 
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| 53 | state=rhs.state; | 
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| 54 | descr=rhs.descr; | 
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| 55 | index=rhs.index; | 
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| 56 | } | 
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| 57 | return *this; | 
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| 58 | } | 
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| 59 |  | 
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| 60 | template<class _Target, | 
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| 61 | class _Container, | 
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| 62 | class _Descriptor> | 
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| 63 | SelectiveIterator<_Target,_Container,_Descriptor>& | 
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| 64 | SelectiveIterator<_Target,_Container,_Descriptor>::operator++(){ | 
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| 65 | ++state; | 
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| 66 | ++index; | 
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| 67 | advanceState(); | 
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| 68 | return *this; | 
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| 69 | } | 
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| 70 |  | 
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| 71 | template<class _Target, | 
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| 72 | class _Container, | 
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| 73 | class _Descriptor> | 
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| 74 | SelectiveIterator<_Target,_Container,_Descriptor> SelectiveIterator<_Target,_Container,_Descriptor>::operator++(int){ | 
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| 75 | SelectiveIterator<_Target,_Container,_Descriptor> res = SelectiveIterator<_Target,_Container,_Descriptor>(*this); | 
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| 76 | ++(*this); | 
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| 77 | return res; | 
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| 78 | } | 
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| 79 |  | 
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| 80 | template<class _Target, | 
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| 81 | class _Container, | 
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| 82 | class _Descriptor> | 
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| 83 | bool | 
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| 84 | SelectiveIterator<_Target,_Container,_Descriptor>::operator==(const SelectiveIterator<_Target,_Container,_Descriptor>& rhs){ | 
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| 85 | return state==rhs.state; | 
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| 86 | } | 
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| 87 |  | 
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| 88 | template<class _Target, | 
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| 89 | class _Container, | 
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| 90 | class _Descriptor> | 
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| 91 | bool | 
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| 92 | SelectiveIterator<_Target,_Container,_Descriptor>::operator!=(const SelectiveIterator<_Target,_Container,_Descriptor>& rhs){ | 
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| 93 | return state!=rhs.state; | 
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| 94 | } | 
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| 95 |  | 
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| 96 | template<class _Target, | 
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| 97 | class _Container, | 
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| 98 | class _Descriptor> | 
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| 99 | typename SelectiveIterator<_Target,_Container,_Descriptor>::Target | 
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| 100 | SelectiveIterator<_Target,_Container,_Descriptor>::operator*(){ | 
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| 101 | return _take<_Target,value_type>::get(*state); | 
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| 102 | } | 
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| 103 |  | 
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| 104 | template<class _Target, | 
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| 105 | class _Container, | 
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| 106 | class _Descriptor> | 
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| 107 | void | 
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| 108 | SelectiveIterator<_Target,_Container,_Descriptor>::advanceState(){ | 
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| 109 | // go forward until we have a matching atom or the end is reached | 
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| 110 | while((state!=content.end()) && (!descr->predicate(*state))){ | 
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| 111 | ++state; | 
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| 112 | ++index; | 
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| 113 | } | 
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| 114 | } | 
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| 115 |  | 
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| 116 | template<class _Target, | 
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| 117 | class _Container, | 
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| 118 | class _Descriptor> | 
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| 119 | int | 
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| 120 | SelectiveIterator<_Target,_Container,_Descriptor>::getCount(){ | 
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| 121 | return index; | 
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| 122 | } | 
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| 123 |  | 
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| 124 |  | 
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| 125 | #define CONSTRUCT_SELECTIVE_ITERATOR(_Target,_Container,_Descriptor) \ | 
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| 126 | template SelectiveIterator<_Target,_Container,_Descriptor>::SelectiveIterator(_Descriptor, _Container&); \ | 
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| 127 | template SelectiveIterator<_Target,_Container,_Descriptor>::SelectiveIterator(_Descriptor, _Container&, SelectiveIterator<_Target,_Container,_Descriptor>::Iter); \ | 
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| 128 | template SelectiveIterator<_Target,_Container,_Descriptor>::SelectiveIterator(const SelectiveIterator<_Target,_Container,_Descriptor>&); \ | 
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| 129 | template SelectiveIterator<_Target,_Container,_Descriptor>& SelectiveIterator<_Target,_Container,_Descriptor>::operator=(const SelectiveIterator<_Target,_Container,_Descriptor>&); \ | 
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| 130 | template SelectiveIterator<_Target,_Container,_Descriptor>& SelectiveIterator<_Target,_Container,_Descriptor>::operator++(); \ | 
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| 131 | template SelectiveIterator<_Target,_Container,_Descriptor> SelectiveIterator<_Target,_Container,_Descriptor>::operator++(int); \ | 
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| 132 | template bool SelectiveIterator<_Target,_Container,_Descriptor>::operator==(const SelectiveIterator<_Target,_Container,_Descriptor>&); \ | 
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| 133 | template bool SelectiveIterator<_Target,_Container,_Descriptor>::operator!=(const SelectiveIterator<_Target,_Container,_Descriptor>&); \ | 
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| 134 | template SelectiveIterator<_Target,_Container,_Descriptor>::Target SelectiveIterator<_Target,_Container,_Descriptor>::operator*(); \ | 
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| 135 | template int SelectiveIterator<_Target,_Container,_Descriptor>::getCount(); | 
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| 136 |  | 
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| 137 | #endif /* SELECTIVEITERATOR_IMPL_HPP_ */ | 
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