re: Random Number generator

[Jon Paris <paris@xxxxxxxxxx>]

>> "I need to generate a random 5-digit number on an AS/400.  What is good?
Is this a Rexx job?" <<


No need for Rexx if you can use RPG IV (V3R2 or later) for the job.  The
following prototypes map to the C "rand" and "srand" functions.  Examples of
use are shown below.

      * Protos for C Random number functions

     D GetRandom       PR            10U 0 ExtProc('rand')

     D SetRandom       PR                  ExtProc('srand')
     D   Seed                        10U 0 Value

      * To seed the random number generator to start a new sequence use
      * the SetRandom function.
      * Initial seed could be formed by (say) adding job number to the date

     C                   CallP     SetRandom(JobNumber + Today)

      * To obtain the next random number in the sequence use GetRandom

     C                   Eval      NextNumber = GetRandom


The only other thing you need is to ensure that you specify the binding
directory QC2LE to the CRTBNDRPG command.

Jon Paris - AS/400 AD Market Support - paris@ca.ibm.com
Phone: (416) 448-4019   -   Fax: (416) 448-4414
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