I'm just curious. I don't, personally, have any need for it at present. I can envision some need for it, such as "atomically" incrementing one variable by some amount and decrementing another by that same amount (like DB2 does within an SQL transaction). Or maybe updating a double linked list to remove a node.
I tried to see if there were any Redbooks about it, but my searches didn't find anything. -- "Irrigation of the land with seawater desalinated by fusion power is ancient. It's called 'rain'." -- Michael McClary, in alt.fusion Maranatha! <>< John McKown
