1.3 KiB
1.3 KiB
[syserr.errcondition.observers]
19 Diagnostics library [diagnostics]
19.5 System error support [syserr]
19.5.5 Class error_condition [syserr.errcondition]
19.5.5.4 Observers [syserr.errcondition.observers]
int value() const noexcept;
Returns: val_.
const error_category& category() const noexcept;
Returns: **cat_*.
string message() const;
Returns: category().message(value()).
explicit operator bool() const noexcept;
Returns: value() != 0.