19 Diagnostics library [diagnostics]

19.5 System error support [syserr]

19.5.3 Class error_condition [syserr.errcondition]

19.5.3.2 Class error_condition constructors [syserr.errcondition.constructors]

error_condition() noexcept;

Effects: Constructs an object of type error_condition.

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

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

Effects: Constructs an object of type error_condition.

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

template <class ErrorConditionEnum> error_condition(ErrorConditionEnum e) noexcept;

Effects: Constructs an object of type error_condition.

Postcondition: *this == make_error_condition(e).

Remarks: This constructor shall not participate in overload resolution unless is_error_condition_enum<ErrorConditionEnum>::value is true.