[REBOL] Re: Creating unique ID's?
From: greggirwin:mindspring at: 16-Jul-2002 11:38
Hi Ingo,
<<
I need to create ID's which are unique over even when they are created
on different machines, or several poeple on the same machine, etc. Does
anyone have a better idea than
unique-id: join join system/user/email system/network/host now/precise
>>
I guess that depends on *how* unique they need to be. For example, if you
call this twice in a row, you'll very likely get the same ID so it's not a
good substitute for something like the DCE UUID approach, but that may be
overkill. If you need ID's that are *guaranteed* (or as close as we can get
to that) to be unique across time and space, I think you'll need to do more.
Adding a random element would be a good start.
There was a short discussion on the list in mid-January about UUID
generation.
--Gregg
