22 Diagnostics library [diagnostics]

22.5 System error support [syserr]

22.5.3 Class error_­code [syserr.errcode]

22.5.3.2 Class error_­code constructors [syserr.errcode.constructors]

error_code() noexcept;

1
#

Effects: Constructs an object of type error_­code.

2
#

Postconditions: val_­ == 0 and cat_­ == &system_­category().

error_code(int val, const error_category& cat) noexcept;

3
#

Effects: Constructs an object of type error_­code.

4
#

Postconditions: val_­ == val and cat_­ == &cat.

template <class ErrorCodeEnum> error_code(ErrorCodeEnum e) noexcept;

5
#

Effects: Constructs an object of type error_­code.

6
#

Postconditions: *this == make_­error_­code(e).

7
#

Remarks: This constructor shall not participate in overload resolution unless
is_­error_­code_­enum_­v<ErrorCodeEnum> is true.