as_dec
buf += strpad(buf, MAX_NUMLEN, as_dec(ts, ns / NSEC_PER_SEC, 0), 5, 0, 0);
buf += strpad(buf, MAX_NUMLEN, as_dec(ts, (ns % NSEC_PER_SEC) / NSEC_PER_USEC, 0), 6, 1, 0);
strval = as_dec(valbuf, va_arg_len_type(args, lenmod, signed), 1);
strval = as_dec(valbuf, va_arg_len_type(args, lenmod, unsigned), 0);