From:	Erik Max Francis <max AT alcyone DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: problem with rand()
Date:	Tue, 22 Sep 1998 18:48:26 -0700
Organization:	Alcyone Systems
Lines:	31
Message-ID:	<3608536A.2377DAA0@alcyone.com>
References:	<000301bde661$b7465d20$fd8f2499 AT Internet DOT usinet DOT pminerv>
NNTP-Posting-Host:	charmaine.alcyone.com
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Paul Minerva wrote:

> I am writing an application that needs the rand() function.  When I
> compile
> this program using the UNIX g++ it works fine.  When I compile the
> program
> using gcc, it does not seem to work correctly.

You could stand to be more specific about how it doesn't "work
correctly."

> Any idea what the problem is?

For one thing, you're not seeding the random number generator, which you
have to do if you want unique sequences.

Before your first call to rand, call 

    srand(time(0));

to seed the random number generator.  Be sure to #include <time.h>
before the use so the compiler knows the prototype for time.

-- 
Erik Max Francis / email max AT alcyone DOT com / whois mf303 / icq 16063900 
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