Re: Random Number in PRG: example

Caveat: every time you run this, you will get the same sequence of `random'
numbers.  To get more truly pseudo-random numbers, seed the generator with
(say) the result of the TIME opcode.

I also tried this code without seeding the generator (commented out the
callp srand line), and got different, random-looking number sequences.
Maybe this is the best approach?

--
Paul

----- Original Message -----
From: "DeLong, Eric" <EDeLong@Sallybeauty.com>
To: <RPG400-L@midrange.com>
Sent: Tuesday, April 24, 2001 9:01 PM
Subject: RE: Random Number in PRG: example


> Ugh! That might work ok, but it's a bit dated..... If you're using RPGIV,
> give this a spin.
>
> ---------------------------------------------------------------
> H dftactgrp(*no) bnddir('QC2LE')
> D rand            pr            10i 0 extproc('rand')
> D srand           pr                  extproc('srand')
> D                               10i 0 value
> D num             s             10i 0
> D i               s             10i 0
> C                   callp     srand(123)
> C                   for       i = 1 to 10
> C                   eval      num = rand
> C     num           dsply
> C                   endfor
> C                   eval      *inlr = *on
> ----------------------------------------------------------------
>
>
> This was right out of the archives (thanks Hans). SRAND seeds the random
> generator, and RAND returns the random numbers. MUCH  simpler than the
> RPGIII code you found.
>
> hth,
> Eric DeLong


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