public exceptionoperator=(error_at_line &&) -> error_at_line &error_at_line(error_at_line &&)operator=(const error_at_line &) -> error_at_line &error_at_line(const error_at_line &)~error_at_line()virtualerror_at_line()what() const -> const char *error_at_line(std::string filename, size_t line, size_t character, std::string message)explicit