37 lines
1.2 KiB
Markdown
37 lines
1.2 KiB
Markdown
[string.view.io]
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# 27 Strings library [[strings]](./#strings)
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## 27.3 String view classes [[string.view]](string.view#io)
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### 27.3.5 Inserters and extractors [string.view.io]
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[ð](#lib:operator%3c%3c,basic_string_view)
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`template<class charT, class traits>
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basic_ostream<charT, traits>&
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operator<<(basic_ostream<charT, traits>& os, basic_string_view<charT, traits> str);
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`
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L1656)
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*Effects*: Behaves as a formatted output
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function ([[ostream.formatted.reqmts]](ostream.formatted.reqmts "31.7.6.3.1 Common requirements")) of os[.](#1.sentence-1)
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Forms a character sequenceseq, initially consisting of the elements defined by the range
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[str.begin(), str.end())[.](#1.sentence-2)
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Determines padding for seq as described in [[ostream.formatted.reqmts]](ostream.formatted.reqmts "31.7.6.3.1 Common requirements")[.](#1.sentence-3)
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Then inserts seq as if by callingos.rdbuf()->sputn(seq, n), where n is the larger
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of os.width() and str.size();
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then calls os.width(0)[.](#1.sentence-4)
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/strings.tex#L1668)
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*Returns*: os[.](#2.sentence-1)
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