Date: Thu, 25 May 2000 08:49:55 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: Chris Miller <c DOT miller AT chemistry DOT uq DOT edu DOT au>
cc: djgpp AT delorie DOT com
Subject: Re: Random numbers
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On Thu, 25 May 2000, Chris Miller wrote:

> If RAND_MAX is set to 100, then a call to rand() should return an
> integer between 0 and 100.  However, on my computer, a call to rand()
> generates a number between what appears to be hundreds of millions and
> 0, even with RAND_MAX set to 100.

You cannot control `rand' by setting RAND_MAX, it is a constant that 
tells you what is the range of numbers produced by `rand'.  Changing its 
value will have no effect, since when `rand' was compiled, it used the 
original value.

The recommended way to generate random numbers from a smaller range is
described in section 22.23 of the DJGPP FAQ list, which see.