Mailing-List: contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT sourceware DOT cygnus DOT com Delivered-To: mailing list cygwin AT sourceware DOT cygnus DOT com Message-ID: <002d01bfe71f$1d832680$0a00a8c0@bellview> From: "Federico Spinazzi" To: Subject: R: Random no. problem Date: Thu, 6 Jul 2000 08:52:21 +0100 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 you can look at: http://lib-www.lanl.gov/numerical/bookc.html Regards. FS -----Messaggio originale----- Da: Charles Wilson A: saurabh deshpande Cc: cygwin AT sourceware DOT cygnus DOT com Data: mercoledì 5 luglio 2000 19.29 Oggetto: Re: Random no. problem > > >saurabh deshpande wrote: >> > >> When compiled on Sun Solaris or SGI Irix 6.4 using gcc compier i get 16838. >> When compiled on Windows NT 4 using Cygnus gcc compiler i get 1103527590. >> Is there a way i can get the same random numbers on Windows NT 4 and >> Sun/SGI ? >> > >Not easily. You cannot depend on separate implementations of random >number generators to give the same results. The only way to get what you >seem to want (a repeatable pseudo-random sequence on multiple >architectures) is to roll your own random number generator routine, and >seed it with the same seed on each architecture. See (for instance) >"Numerical Recipes in C" or something similar, for relatively decent >RNGs. > >In any case, this is more of a cross-platform, C programming issue, and >not really a cygwin-specific issue, so you should probably find another >list to discuss this topic. > >--Chuck > >-- >Want to unsubscribe from this list? >Send a message to cygwin-unsubscribe AT sourceware DOT cygnus DOT com > > -- Want to unsubscribe from this list? Send a message to cygwin-unsubscribe AT sourceware DOT cygnus DOT com