I'd suggest setting randseed. IIRC, it's stack junk when the app starts up. Setting it should give you a consistent sequence.
HTH, Marshall Sent from my Droid phone On Jan 23, 2011 1:03 AM, "-K2RFP-" <rn...@verizon.net> wrote: > Rory, yes I'm writing a program in Delphi 3 that is intended to > run on all flavors of Windows, even on platforms that are running > a Windows emulator. > > I will not be including a Randomize statement and I want to be > able to produce the same list of random numbers regardless of the > operating system. I thought that it would work as I want but I > just wanted to make sure. > > Thanks for the reply. > > Dick, k2rfp > > On 1/22/2011 7:39 AM, Rory Daulton wrote: >> -K2RFP-, >> >>> I have a program that uses the random number generator and >>> there is no Randomize statement in it. From the help files >>> this should produce the same sequence of random numbers >>> every time the program runs. >>> >>> The question is, is the sequence the same for all operating >>> systems that the program runs on? >> >> Are you talking about a Delphi program that uses Delphi's built-in >> Random() function? >> >> If so, it will give the same sequence for any version of Windows that >> it runs on. Random() does not use any Windows random number generator, >> but uses its own, a linear congruential modulator. (At least, that is >> so in the Delphi versions I have.) Even Randomize() would not depend >> on the Windows version: it just uses the system time to set a random >> number seed. >> >> Rory Daulton >> rorydaul...@email.com >> >> __________________________________________________ >> Delphi-Talk mailing list -> Delphi-Talk@elists.org >> http://lists.elists.org/cgi-bin/mailman/listinfo/delphi-talk >> > __________________________________________________ > Delphi-Talk mailing list -> Delphi-Talk@elists.org > http://lists.elists.org/cgi-bin/mailman/listinfo/delphi-talk __________________________________________________ Delphi-Talk mailing list -> Delphi-Talk@elists.org http://lists.elists.org/cgi-bin/mailman/listinfo/delphi-talk
