Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!tank!shamash!com50!jhereg!mark
From: mark@jhereg.Jhereg.MN.ORG (Mark H. Colburn)
Newsgroups: comp.lang.c
Subject: Re: How do I get random #s?
Message-ID: <510@jhereg.Jhereg.MN.ORG>
Date: 3 Feb 89 00:41:10 GMT
References: <19415@dhw68k.cts.com>
Reply-To: mark@jhereg.MN.ORG (Mark H. Colburn)
Organization: Minnetech Consulting, Inc., St. Paul MN
Lines: 33

In article <19415@dhw68k.cts.com> tsource@dhw68k.cts.com (Aryeh Friedman) writes:
>	I am new to C and I want to know how to get random numbers returned.


There are several different variations on how to get random numbers in C.

On most System V based systems and when using ANSI C you would use the 
function srand() to provide a random number seed (if you want one) and 
the rand() function to get a randon number back.

	unsigned int	seed;
	int		num;

	seed = ???;
	srand(seed);
	num = rand();


On most BSD derived systems you would use srandom() to provide the seen and 
the random() function to get the random number back.


	int		seed;
	long		num;

	seed = ???;
	srandom(seed);
	num  = random();

-- 
Mark H. Colburn                  "Look into a child's eye;
Minnetech Consulting, Inc.        there's no hate and there's no lie;
mark@jhereg.mn.org                there's no black and there's no white."