Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Message-ID: <423DC8D4.3000702@codesourcery.com>
Date: Sun, 20 Mar 2005 19:02:44 +0000
From: Nathan Sidwell <nathan AT codesourcery DOT com>
Organization: Codesourcery LLC
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040913
MIME-Version: 1.0
To: "Gerrit P. Haase" <gp AT familiehaase DOT de>
CC: Alex Vinokur <alexvn AT users DOT sourceforge DOT net>, cygwin AT cygwin DOT com,
   gcc-help AT gcc DOT gnu DOT org
Subject: Re: g++ & rand() in Cygwin
References: <d0u0pt$aj0$1 AT sea DOT gmane DOT org> <423DC28A DOT 8030408 AT familiehaase DOT de>
In-Reply-To: <423DC28A.8030408@familiehaase.de>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Gerrit P. Haase wrote:
> Alex Vinokur wrote:


>> First pseuso-random number is 0.

Random nnumber generators generally need to be seeded with a random
seed.  This naively strange behaviour allows you to get consistent
sequences of random numbers, which is generally necessary for regression
testing and debugging.

nathan

-- 
Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
nathan AT codesourcery DOT com    ::     http://www.planetfall.pwp.blueyonder.co.uk


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/