tmp/tmp1go60x42/{from.md → to.md}
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| 1 |
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#### Class template `zip_transform_view::sentinel` <a id="range.zip.transform.sentinel">[[range.zip.transform.sentinel]]</a>
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``` cpp
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namespace std::ranges {
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template<move_constructible F, input_range... Views>
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requires (view<Views> && ...) && (sizeof...(Views) > 0) && is_object_v<F> &&
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regular_invocable<F&, range_reference_t<Views>...> &&
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can-reference<invoke_result_t<F&, range_reference_t<Views>...>>
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template<bool Const>
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class zip_transform_view<F, Views...>::sentinel {
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zentinel<Const> inner_; // exposition only
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constexpr explicit sentinel(zentinel<Const> inner); // exposition only
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public:
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sentinel() = default;
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constexpr sentinel(sentinel<!Const> i)
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requires Const && convertible_to<zentinel<false>, zentinel<Const>>;
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template<bool OtherConst>
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requires sentinel_for<zentinel<Const>, ziperator<OtherConst>>
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friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y);
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template<bool OtherConst>
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requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>>
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friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>>
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operator-(const iterator<OtherConst>& x, const sentinel& y);
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template<bool OtherConst>
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requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>>
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friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>>
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operator-(const sentinel& x, const iterator<OtherConst>& y);
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};
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}
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```
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``` cpp
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constexpr explicit sentinel(zentinel<Const> inner);
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```
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*Effects:* Initializes *inner\_* with `inner`.
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``` cpp
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constexpr sentinel(sentinel<!Const> i)
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requires Const && convertible_to<zentinel<false>, zentinel<Const>>;
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```
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*Effects:* Initializes *inner\_* with `std::move(i.`*`inner_`*`)`.
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``` cpp
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template<bool OtherConst>
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requires sentinel_for<zentinel<Const>, ziperator<OtherConst>>
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friend constexpr bool operator==(const iterator<OtherConst>& x, const sentinel& y);
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```
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*Effects:* Equivalent to: `return x.`*`inner_`*` == y.`*`inner_`*`;`
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``` cpp
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template<bool OtherConst>
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requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>>
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friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>>
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operator-(const iterator<OtherConst>& x, const sentinel& y);
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template<bool OtherConst>
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requires sized_sentinel_for<zentinel<Const>, ziperator<OtherConst>>
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friend constexpr range_difference_t<maybe-const<OtherConst, InnerView>>
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operator-(const sentinel& x, const iterator<OtherConst>& y);
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```
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*Effects:* Equivalent to: `return x.`*`inner_`*` - y.`*`inner_`*`;`
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