22 Diagnostics library [diagnostics]

22.5 System error support [syserr]

22.5.3 Class error_­code [syserr.errcode]

22.5.3.4 Class error_­code observers [syserr.errcode.observers]

int value() const noexcept;

1
#

Returns: val_­.

const error_category& category() const noexcept;

2
#

Returns: *cat_­.

error_condition default_error_condition() const noexcept;

3
#

Returns: category().default_­error_­condition(value()).

string message() const;

4
#

Returns: category().message(value()).

explicit operator bool() const noexcept;

5
#

Returns: value() != 0.