_ERROR(BAD_UNIT, "invalid unit specifier") \
_ERROR(BAD_ATOM, "invalid atom") \
_ERROR(BAD_OUTPUT_ARG, "invalid name for output") \
_ERROR(BAD_UNIT, "invalid unit specifier") \
_ERROR(BAD_ATOM, "invalid atom") \
_ERROR(BAD_OUTPUT_ARG, "invalid name for output") \