33 lines
970 B
Markdown
33 lines
970 B
Markdown
[syserr.errcode.nonmembers]
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# 19 Diagnostics library [[diagnostics]](./#diagnostics)
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## 19.5 System error support [[syserr]](syserr#errcode.nonmembers)
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### 19.5.4 Class error_code [[syserr.errcode]](syserr.errcode#nonmembers)
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#### 19.5.4.5 Non-member functions [syserr.errcode.nonmembers]
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[ð](#lib:make_error_code,errc)
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`error_code make_error_code(errc e) noexcept;
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`
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/diagnostics.tex#L1216)
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*Returns*: error_code(static_cast<int>(e), generic_category())[.](#1.sentence-1)
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[ð](#lib:operator%3c%3c,error_code)
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`template<class charT, class traits>
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basic_ostream<charT, traits>& operator<<(basic_ostream<charT, traits>& os, const error_code& ec);
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`
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/diagnostics.tex#L1228)
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*Effects*: Equivalent to: return os << ec.category().name() << ':' << ec.value();
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