19 Diagnostics library [diagnostics]

19.5 System error support [syserr]

19.5.4 Class error_­code [syserr.errcode]

19.5.4.3 Modifiers [syserr.errcode.modifiers]

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void assign(int val, const error_category& cat) noexcept;
1
#
Postconditions: val_­ == val and cat_­ == &cat.
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template<class ErrorCodeEnum> error_code& operator=(ErrorCodeEnum e) noexcept;
2
#
Constraints: is_­error_­code_­enum_­v<ErrorCodeEnum> is true.
3
#
Postconditions: *this == make_­error_­code(e).
4
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Returns: *this.
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void clear() noexcept;
5
#
Postconditions: value() == 0 and category() == system_­category().