48 lines
1.8 KiB
Markdown
48 lines
1.8 KiB
Markdown
[common.iter.cust]
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# 24 Iterators library [[iterators]](./#iterators)
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## 24.5 Iterator adaptors [[predef.iterators]](predef.iterators#common.iter.cust)
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### 24.5.5 Common iterators [[iterators.common]](iterators.common#common.iter.cust)
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#### 24.5.5.7 Customizations [common.iter.cust]
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[ð](#lib:iter_move,common_iterator)
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`friend constexpr decltype(auto) iter_move(const common_iterator& i)
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noexcept(noexcept(ranges::iter_move(declval<const I&>())))
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requires [input_iterator](iterator.concept.input#concept:input_iterator "24.3.4.9 Concept input_iterator [iterator.concept.input]")<I>;
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`
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iterators.tex#L5831)
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*Hardened preconditions*: holds_alternative<I>(i.v_) is true[.](#1.sentence-1)
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iterators.tex#L5835)
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*Effects*: Equivalent to: return ranges::iter_move(get<I>(i.v_));
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[ð](#lib:iter_swap,common_iterator)
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`template<[indirectly_swappable](alg.req.ind.swap#concept:indirectly_swappable "24.3.7.4 Concept indirectly_swappable [alg.req.ind.swap]")<I> I2, class S2>
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friend constexpr void iter_swap(const common_iterator& x, const common_iterator<I2, S2>& y)
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noexcept(noexcept(ranges::iter_swap(declval<const I&>(), declval<const I2&>())));
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`
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[3](#3)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iterators.tex#L5848)
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*Hardened preconditions*: holds_alternative<I>(x.v_) and holds_alternative<I2>(y.v_) are each true[.](#3.sentence-1)
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[4](#4)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iterators.tex#L5853)
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*Effects*: Equivalent to ranges::iter_swap(get<I>(x.v_), get<I2>(y.v_))[.](#4.sentence-1)
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