31 lines
1.1 KiB
Markdown
31 lines
1.1 KiB
Markdown
[range.join.overview]
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# 25 Ranges library [[ranges]](./#ranges)
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## 25.7 Range adaptors [[range.adaptors]](range.adaptors#range.join.overview)
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### 25.7.14 Join view [[range.join]](range.join#overview)
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#### 25.7.14.1 Overview [range.join.overview]
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L6650)
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join_view flattens a view of ranges into a view[.](#1.sentence-1)
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L6653)
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The name views::join denotes a
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range adaptor object ([[range.adaptor.object]](range.adaptor.object "25.7.2 Range adaptor objects"))[.](#2.sentence-1)
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Given a subexpression E, the expressionviews::join(E) is expression-equivalent tojoin_view<views::all_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#L6661)
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[*Example [1](#example-1)*: vector<string> ss{"hello", " ", "world", "!"};for (char ch : ss | views::join) cout << ch; // prints hello world! â *end example*]
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