cppdraft_translate/cppdraft/range/slide/sentinel.md

[range.slide.sentinel]

25 Ranges library [ranges]

25.7 Range adaptors [range.adaptors]

25.7.30 Slide view [range.slide]

25.7.30.4 Class slide_view​::​sentinel [range.slide.sentinel]

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namespace std::ranges {template<forward_range V>requires viewclass slide_view::sentinel { sentinel_t end_ = sentinel_t(); // exposition onlyconstexpr explicit sentinel(sentinel_t end); // exposition onlypublic:sentinel() = default; friend constexpr bool operator==(const iterator& x, const sentinel& y); friend constexpr range_difference_toperator-(const iterator& x, const sentinel& y)requires sized_sentinel_for<sentinel_t, iterator_t>; friend constexpr range_difference_toperator-(const sentinel& y, const iterator& x)requires sized_sentinel_for<sentinel_t, iterator_t>; };}

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[Note 1:

sentinel is used only when slide-caches-first is true.

— end note]

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constexpr explicit sentinel(sentinel_t<V> end);

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Effects: Initializes end_ with end.

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friend constexpr bool operator==(const iterator<false>& x, const sentinel& y);

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Returns: x.last_ele_ == y.end_.

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friend constexpr range_difference_t<V> operator-(const iterator<false>& x, const sentinel& y) requires [sized_sentinel_for](iterator.concept.sizedsentinel#concept:sized_sentinel_for "24.3.4.8 Concept sized_­sentinel_­for [iterator.concept.sizedsentinel]")<sentinel_t<V>, iterator_t<V>>;

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Returns: x.last_ele_ - y.end_.

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friend constexpr range_difference_t<V> operator-(const sentinel& y, const iterator<false>& x) requires [sized_sentinel_for](iterator.concept.sizedsentinel#concept:sized_sentinel_for "24.3.4.8 Concept sized_­sentinel_­for [iterator.concept.sizedsentinel]")<sentinel_t<V>, iterator_t<V>>;

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Returns: y.end_ - x.last_ele_.