HP3000-L Archives

December 2006, Week 2

HP3000-L@RAVEN.UTC.EDU

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From:
Brian Donaldson <[log in to unmask]>
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Date:
Tue, 12 Dec 2006 20:35:13 EST
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I’m using the combination of the system date (X8) and time (X8) as the  seed 
for the Cobol function RANDOM (e.g. 2006121309215430 may be the date/time  
combo seed). Works fine the first time it is executed. The result being moved  
into a PIC S9(18) COMP field.  
The problem is that the next time around executing this routine the  
date/time combo may not have advanced any, therefore giving me the same “random”  
number. 
I thought the date/time combo might be unique but obviously not. Then I  
thought  by pausing the program for  one second before getting the system 
date/time again might help things  along. 
The problem with that -- the run time of the program is  significantly 
increased. 
Has anyone any idea on how to pass a (more) unique seed number to the  random 
function? 
Any and all  suggestions will be greatly appreciated. 
TIA, 
Brian  Donaldson. 


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