cppdraft_translate/cppdraft/range/istream/iterator.md

[range.istream.iterator]

25 Ranges library [ranges]

25.6 Range factories [range.factories]

25.6.6 Istream view [range.istream]

25.6.6.3 Class basic_istream_view​::​iterator [range.istream.iterator]

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namespace std::ranges {template<movable Val, class CharT, class Traits>requires default_initializable &&stream-extractable<Val, CharT, Traits>class basic_istream_view<Val, CharT, Traits>::iterator {public:using iterator_concept = input_iterator_tag; using difference_type = ptrdiff_t; using value_type = Val; constexpr explicit iterator(basic_istream_view& parent) noexcept; iterator(const iterator&) = delete; iterator(iterator&&) = default; iterator& operator=(const iterator&) = delete; iterator& operator=(iterator&&) = default; iterator& operator++(); void operator++(int);

Val& operator*() const; friend bool operator==(const iterator& x, default_sentinel_t); private: basic_istream_view* parent_; // exposition only};}

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constexpr explicit iterator(basic_istream_view& parent) noexcept;

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Effects: Initializes parent_ with addressof(parent).

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iterator& operator++();

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Effects: Equivalent to:**parent_*->stream_ >> parent_->value_;return *this;

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void operator++(int);

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Effects: Equivalent to ++*this.

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Val& operator*() const;

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Effects: Equivalent to: return parent_->value_;

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friend bool operator==(const iterator& x, default_sentinel_t);

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Effects: Equivalent to: return !*x.parent_->stream_;