31 Regular expressions library [re]

31.6 Class regex_­error [re.badexp]

class regex_error : public runtime_error {
  explicit regex_error(regex_constants::error_type ecode);
  regex_constants::error_type code() const;

The class regex_­error defines the type of objects thrown as exceptions to report errors from the regular expression library.

regex_error(regex_constants::error_type ecode);

Effects: Constructs an object of class regex_­error.

Postconditions: ecode == code().

regex_constants::error_type code() const;

Returns: The error code that was passed to the constructor.