25 Ranges library [ranges]

25.7 Range adaptors [range.adaptors]

25.7.27 Adjacent view [range.adjacent]

25.7.27.4 Class template adjacent_view​::​sentinel [range.adjacent.sentinel]

namespace std::ranges { template<forward_range V, size_t N> requires view<V> && (N > 0) template<bool Const> class adjacent_view<V, N>::sentinel { using Base = maybe-const<Const, V>; // exposition only sentinel_t<Base> end_ = sentinel_t<Base>(); // exposition only constexpr explicit sentinel(sentinel_t<Base> end); // exposition only public: sentinel() = default; constexpr sentinel(sentinel<!Const> i) requires Const && convertible_to<sentinel_t<V>, sentinel_t<Base>>; template<bool OtherConst> requires sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y); template<bool OtherConst> requires sized_sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr range_difference_t<maybe-const<OtherConst, V>> operator-(const iterator<OtherConst>& x, const sentinel& y); template<bool OtherConst> requires sized_sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr range_difference_t<maybe-const<OtherConst, V>> operator-(const sentinel& y, const iterator<OtherConst>& x); }; }
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constexpr explicit sentinel(sentinel_t<Base> end);
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Effects: Initializes end_ with end.
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constexpr sentinel(sentinel<!Const> i) requires Const && convertible_to<sentinel_t<V>, sentinel_t<Base>>;
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Effects: Initializes end_ with std​::​move(i.end_).
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template<bool OtherConst> requires sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y);
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Effects: Equivalent to: return x.current_.back() == y.end_;
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template<bool OtherConst> requires sized_sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr range_difference_t<maybe-const<OtherConst, V>> operator-(const iterator<OtherConst>& x, const sentinel& y);
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Effects: Equivalent to: return x.current_.back() - y.end_;
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template<bool OtherConst> requires sized_sentinel_for<sentinel_t<Base>, iterator_t<maybe-const<OtherConst, V>>> friend constexpr range_difference_t<maybe-const<OtherConst, V>> operator-(const sentinel& y, const iterator<OtherConst>& x);
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Effects: Equivalent to: return y.end_ - x.current_.back();