33 lines
1.2 KiB
Markdown
33 lines
1.2 KiB
Markdown
[range.transform.overview]
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# 25 Ranges library [[ranges]](./#ranges)
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## 25.7 Range adaptors [[range.adaptors]](range.adaptors#range.transform.overview)
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### 25.7.9 Transform view [[range.transform]](range.transform#overview)
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#### 25.7.9.1 Overview [range.transform.overview]
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L5177)
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transform_view presents
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a view of an underlying sequence after
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applying a transformation function to each element[.](#1.sentence-1)
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L5182)
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The name views::transform 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 subexpressions E and F, the expressionviews::transform(E, F) is expression-equivalent totransform_view(E, F)[.](#2.sentence-2)
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[3](#3)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/ranges.tex#L5190)
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[*Example [1](#example-1)*: vector<int> is{ 0, 1, 2, 3, 4 };auto squares = views::transform(is, [](int i) { return i * i; });for (int i : squares) cout << i << ' '; // prints 0 1 4 9 16 â *end example*]
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