+ _ERROR(SIGNAL_SIG_ERR, "signal() returned SIG_ERR") \
+ _ERROR(OUTPUT, "error writing output file") \
+ _ERROR(MALFORMED_FORMAT, "malformed format string") \
+ _ERROR(BAD_ALIGN_SPEC, "bad alignment specifier") \
+ _ERROR(TRAILING_GARBAGE, "trailing garbage after specifier") \
+ _ERROR(UNIT, "no unit allowed here") \
+ _ERROR(BAD_UNIT, "invalid unit specifier") \
+ _ERROR(BAD_ATOM, "invalid atom") \