[6e97e5] | 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.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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