From: "Crousto" Newsgroups: comp.os.msdos.djgpp Subject: Re: DJGPP's random functions. Date: Mon, 5 Apr 1999 23:56:42 +0200 Organization: Ye 'Ol Disorganized NNTPCache groupie Lines: 17 Message-ID: <923349441.478285@eole> References: <3705018e AT news DOT ismi DOT net> NNTP-Posting-Host: eole.infonie.be X-Newsreader: Microsoft Outlook Express 4.72.3110.5 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3110.3 Cache-Post-Path: eole!unknown AT ppp-bruxelles-2-185 DOT infonie DOT be To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com The help file speaks about 2 functions : rand() and random(). I've noticed that rand (or random, i don't remember ;) return always the same sequence even with a previous srandom(biostime(0,0)), but the other one works fine. And it's a very good random generator : according to Bjarne Stroustrup (C++'s creator), low-order bits of a random generator are often suspect, so rand()%n is not a good way of generating a random number between 0 and n-1 (he tips to use "(double(rand())/RAND_MAX)*n" ). BUT i've tested rand()%n, and it gives a very good repartition... So, DJGPP is the best C implementation!!! ;) Crousto crousto AT infonie DOT be