25 Ranges library [ranges]

25.7 Range adaptors [range.adaptors]

25.7.26 Zip transform view [range.zip.transform]

25.7.26.4 Class template zip_transform_view​::​sentinel [range.zip.transform.sentinel]

namespace std::ranges { template<move_constructible F, input_range... Views> requires (view<Views> && ...) && (sizeof...(Views) > 0) && is_object_v<F> && regular_invocable<F&, range_reference_t<Views>...> && can-reference<invoke_result_t<F&, range_reference_t<Views>...>> template<bool Const> class zip_transform_view<F, Views...>::sentinel { zentinel<Const> inner_; // exposition only constexpr explicit sentinel(zentinel<Const> inner); // exposition only public: sentinel() = default; constexpr sentinel(sentinel<!Const> i) requires Const && convertible_to<zentinel<false>, zentinel<Const>>; template<bool OtherConst> requires sentinel_for<zentinel<Const>, ziperator<OtherConst>> friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y); template<bool OtherConst> requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>> friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>> operator-(const iterator<OtherConst>& x, const sentinel& y); template<bool OtherConst> requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>> friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>> operator-(const sentinel& x, const iterator<OtherConst>& y); }; }
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constexpr explicit sentinel(zentinel<Const> inner);
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Effects: Initializes inner_ with inner.
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constexpr sentinel(sentinel<!Const> i) requires Const && convertible_to<zentinel<false>, zentinel<Const>>;
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Effects: Initializes inner_ with std​::​move(i.inner_).
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template<bool OtherConst> requires sentinel_for<zentinel<Const>, ziperator<OtherConst>> friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y);
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Effects: Equivalent to: return x.inner_ == y.inner_;
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template<bool OtherConst> requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>> friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>> operator-(const iterator<OtherConst>& x, const sentinel& y); template<bool OtherConst> requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>> friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>> operator-(const sentinel& x, const iterator<OtherConst>& y);
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Effects: Equivalent to: return x.inner_ - y.inner_;