From:	mrh99 AT uswest DOT net (Matthew Haley)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: srand()
Organization:	Home
Message-ID:	<37ed0d41.887291@news.uswest.net>
References:	<7shlcr$bn2$1 AT canopus DOT cc DOT umanitoba DOT ca> <37ec69fb DOT 17055060 AT news DOT uswest DOT net> <37ECFF5F DOT AAD52476 AT btinternet DOT com>
X-Newsreader:	Forte Free Agent 1.11/32.235
Lines:	27
Date:	Sat, 25 Sep 1999 18:00:58 GMT
NNTP-Posting-Host:	209.181.132.193
X-Trace:	news.uswest.net 938282286 209.181.132.193 (Sat, 25 Sep 1999 12:58:06 CDT)
NNTP-Posting-Date:	Sat, 25 Sep 1999 12:58:06 CDT
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Hi Thomas Harte , 
 
 On Sat, 25 Sep 1999 17:59:11 +0100,
 <<Thomas Harte>> wrote:

>> As an aside, I built this program with lcc-Win32 (I don't have DJGPP
>> installed right now :), then ran it 645 times and it actually produced
>> numbers between ~28,000 and ~30,000 so it's not the best way to get
>> random numbers, unless you modify the result with a bit more math.
>
>	You do realise that 'time' only returns the time accurate to the second, and
>so, if your 645 runs were consecutive, this wasn't a very good test?
>
>		-Thomas

That would explain the non randomness. All I did was right a small
program that called system("srand_demo >>output.txt") repeatedly. I
supposes that putting the loop in the srand_demo.c and calling
srand(time(NULL)) once at the beginning would have produced more
random numbers.

BTW, thanks for the info, it was late.
===================================
Matthew Haley
mrh99 AT uswest DOT net
http://www.users.uswest.net/~mrh99
===================================

- Raw text -