C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Huge numbers in cpp          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message t Guest Posted: Thu Apr 28, 2005 12:55 pm    Post subject: Huge numbers in cpp Hello, I am going to write a program to search for prime numbers. There will be a lot of clients participating in this searching so I have to operate on very huge numbers, bigger than can be stored in double... I wonder how can I deal with this numbers? Do I have to create an array of doubles or ints? How could I make calculations on numbers stored in such an array? Could you give me some ideas? Or maybe you could send me source of any program which operates on enormous numbers stored in arrays? Thanks in advance, Tomek Back to top Karl Heinz Buchegger Guest Posted: Thu Apr 28, 2005 1:02 pm    Post subject: Re: Huge numbers in cpp t wrote: Quote: Hello, I am going to write a program to search for prime numbers. There will be a lot of clients participating in this searching so I have to operate on very huge numbers, bigger than can be stored in double... I wonder how can I deal with this numbers? Do I have to create an array of doubles or ints? How could I make calculations on numbers stored in such an array? Could you give me some ideas? Or maybe you could send me source of any program which operates on enormous numbers stored in arrays? Why reinvent the weel. Google is your friend. Search for 'Big number library C++ download' and choose one. -- Karl Heinz Buchegger [email]kbuchegg (AT) gascad (DOT) at[/email] Back to top Alf P. Steinbach Guest Posted: Thu Apr 28, 2005 1:02 pm    Post subject: Re: Huge numbers in cpp * t: Quote: Could you give me some ideas? Or maybe you could send me source of any program which operates on enormous numbers stored in arrays? <url: http://www.swox.com/gmp/> -- A: Because it messes up the order in which people normally read text. Q: Why is it such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail? Back to top Alex Vinokur Guest Posted: Thu Apr 28, 2005 3:13 pm    Post subject: Re: Huge numbers in cpp "t" <tkaczmarczyk (AT) poczta (DOT) onet.pl> wrote Quote: Hello, I am going to write a program to search for prime numbers. There will be a lot of clients participating in this searching so I have to operate on very huge numbers, bigger than can be stored in double... I wonder how can I deal with this numbers? Do I have to create an array of doubles or ints? How could I make calculations on numbers stored in such an array? Could you give me some ideas? Or maybe you could send me source of any program which operates on enormous numbers stored in arrays? Thanks in advance, Tomek Try to use C++ BigInt class [url]https://sourceforge.net/projec­ts/cpp-bigint/[/url] [url]http://groups-beta.google.com/­group/sources/msg/496e8d3ae812­abbb[/url] -- Alex Vinokur email: alex DOT vinokur AT gmail DOT com http://mathforum.org/library/view/10978.html http://sourceforge.net/users/alexvn Back to top Krzysztof Zelechowski Guest Posted: Wed May 04, 2005 9:22 pm    Post subject: Re: Huge numbers in cpp Uzytkownik "Karl Heinz Buchegger" <kbuchegg (AT) gascad (DOT) at> napisal w wiadomosci news:4270DECE.5D48D20A (AT) gascad (DOT) at... Quote: t wrote: Hello, I am going to write a program to search for prime numbers. There will be a lot of clients participating in this searching so I have to operate on very huge numbers, bigger than can be stored in double... I wonder how can I deal with this numbers? Do I have to create an array of doubles or ints? How could I make calculations on numbers stored in such an array? Could you give me some ideas? Or maybe you could send me source of any program which operates on enormous numbers stored in arrays? Why reinvent the weel. Google is your friend. Search for 'Big number library C++ download' and choose one. Search for "Search for prime numbers" and choose GIMPS. Chris Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ language (comp.lang.c++) All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.