32 lines
1.1 KiB
Markdown
32 lines
1.1 KiB
Markdown
[range.single.overview]
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# 25 Ranges library [[ranges]](./#ranges)
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## 25.6 Range factories [[range.factories]](range.factories#range.single.overview)
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### 25.6.3 Single view [[range.single]](range.single#overview)
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#### 25.6.3.1 Overview [range.single.overview]
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2626)
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single_view produces a view that contains
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exactly one element of a specified value[.](#1.sentence-1)
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2630)
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The name views::single denotes a
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customization point object ([[customization.point.object]](customization.point.object "16.3.3.3.5 Customization Point Object types"))[.](#2.sentence-1)
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Given a subexpression E, the expressionviews::single(E) is expression-equivalent tosingle_view<decay_t<decltype((E))>>(E)[.](#2.sentence-2)
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[3](#3)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L2638)
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[*Example [1](#example-1)*: for (int i : views::single(4)) cout << i; // prints 4 â *end example*]
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