At 07:09 -0500 on 06/07/2013, Elardus Engelbrecht wrote about Re: Age of datasets in hours, not days?:

John Gilmore wrote:

These six bytes are thus entirely adequate to contain any unsigned elapsed- ยต - sec value in a 24-hour day.

Agreed. Only if all users of that 6 bytes are still using it as *un-signed* value.

2^48 - 1 = 281,474,976,710,655
2^47 - 1 = ~142,***,***,***,***
2^46 - 1 = ~ 71,***,***,***,***

Which is much more than the needed 29,664,400,000,000 so even as signed there is enough room (the sign and the top few bits are zero).

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

Reply via email to