75 lines
2.5 KiB
Text
75 lines
2.5 KiB
Text
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#pragma once
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#include <stdtypedefs.h>
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#include <string>
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namespace std {
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// Iterator tags
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struct input_iterator_tag {};
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struct output_iterator_tag {};
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struct forward_iterator_tag : public input_iterator_tag {};
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struct bidirectional_iterator_tag : public forward_iterator_tag {};
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struct random_access_iterator_tag : public bidirectional_iterator_tag {};
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// Iterator traits
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template<class Iterator> struct iterator_traits {
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typedef typename Iterator::difference_type difference_type;
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typedef typename Iterator::value_type value_type;
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typedef typename Iterator::pointer pointer;
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typedef typename Iterator::reference reference;
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typedef typename Iterator::iterator_category iterator_category;
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};
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template<class T> struct iterator_traits<T*> {
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typedef ptrdiff_t difference_type;
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typedef T value_type;
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typedef T *pointer;
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typedef T &reference;
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typedef random_access_iterator_tag iterator_category;
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};
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template<class T> struct iterator_traits<const T*> {
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typedef ptrdiff_t difference_type;
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typedef T value_type;
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typedef const T *pointer;
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typedef const T &reference;
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typedef random_access_iterator_tag iterator_category;
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};
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// Iterators
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template<class Category, class T, class Distance = ptrdiff_t,
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class Pointer = T*, class Reference = T&> struct iterator {
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typedef T value_type;
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typedef Distance difference_type;
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typedef Pointer pointer;
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typedef Reference reference;
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typedef Category iterator_category;
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};
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template<class Iterator>
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class reverse_iterator : public
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iterator<typename iterator_traits<Iterator>::iterator_category,
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typename iterator_traits<Iterator>::value_type,
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typename iterator_traits<Iterator>::difference_type,
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typename iterator_traits<Iterator>::pointer,
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typename iterator_traits<Iterator>::reference> {
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public:
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typedef Iterator iterator_type;
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typedef typename iterator_traits<Iterator>::difference_type difference_type;
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typedef typename iterator_traits<Iterator>::reference reference;
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typedef typename iterator_traits<Iterator>::pointer pointer;
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};
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template<class T, class charT = char, class traits = char_traits<charT>,
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class Distance = ptrdiff_t>
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class istream_iterator;
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template<class T, class charT = char, class traits = char_traits<charT>>
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class ostream_iterator;
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template<class charT, class traits = char_traits<charT>>
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class istreambuf_iterator;
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template <class charT, class traits = char_traits<charT>>
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class ostreambuf_iterator;
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};
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