Article View: borland.public.delphi.language.objectpascal
Article #197Re: Randomize and Random
From: Sven Pran
Date: Mon, 26 Jan 2004 14:33
Date: Mon, 26 Jan 2004 14:33
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2065 bytes
"Martin Strand" wrote > Sven Pran wrote: > > > "Eugene V. Goldberg" <egold@mts-nn.ru> wrote in message > > >> function TfrmTickets.GetPassword: String; > >> var > >> i, Digit: Integer; > >> begin > >> Randomize; > >> Result := ''; > >> for i := 1 to 8 do > >> begin > >> Digit := Random(10); > >> if Digit = 0 then > >> Digit := 1; > >> Result := Result + IntToStr(Digit) > >> end; > >> end; > > > Digit := Random(10) generates a single number (digit) in the range > > 0..9 and then you change every occurrence of the digit 0 to digit 1 > > > > This results is no zero digits and twice the count of number one > > digits to what I assume you want (equal probability for each digit in > > the range)? > > ... so a better solution would be > Digit := Random(Highest-1)+1; > In this case, your numbers will be in the range 1..Highest. No, they will be in the range 1 to Highest-1 ! All passwords I have ever seen when they consist of numerical digits cosist of digits in the range '0' to '9', not '1' to some "highest digit". Sven
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 109d30,64bfe8b17e3a4cc8 X-Google-Attributes: gid109d30,public X-Google-ArrivalTime: 2004-01-26 06:39:58 PST From: "Sven Pran" <no.direct@mail.please> Newsgroups: borland.public.delphi.language.objectpascal References: <4014fbf5@newsgroups.borland.com> <401501e6@newsgroups.borland.com> <40151efd@newsgroups.borland.com> Subject: Re: Randomize and Random Date: Mon, 26 Jan 2004 15:33:29 +0100 Lines: 40 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 NNTP-Posting-Host: 83.108.10.156 Message-ID: <4015253a@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1075127610 83.108.10.156 (26 Jan 2004 06:33:30 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news2.google.com!news.maxwell.syr.edu!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail