| 1 | #ifndef _SIM_ITERATOR_BASE |
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| 2 | #define _SIM_ITERATOR_BASE |
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| 3 | |
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| 4 | namespace std { |
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| 5 | |
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| 6 | struct input_iterator_tag { }; |
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| 7 | struct output_iterator_tag { }; |
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| 8 | struct forward_iterator_tag : public input_iterator_tag { }; |
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| 9 | struct bidirectional_iterator_tag : public forward_iterator_tag { }; |
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| 10 | struct random_access_iterator_tag : public bidirectional_iterator_tag { }; |
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| 11 | |
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| 12 | template <typename Iterator> struct iterator_traits { |
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| 13 | typedef typename Iterator::difference_type difference_type; |
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| 14 | typedef typename Iterator::value_type value_type; |
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| 15 | typedef typename Iterator::pointer pointer; |
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| 16 | typedef typename Iterator::reference reference; |
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| 17 | typedef typename Iterator::iterator_category iterator_category; |
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| 18 | }; |
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| 19 | |
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| 20 | } // namespace std |
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| 21 | |
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| 22 | #endif // _SIM_ITERATOR_BASE |
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| 23 | |
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