From: rwaltman AT bellatlantic DOT net (Roberto Waltman) Newsgroups: comp.os.msdos.djgpp Subject: Re: 8 Byte Integer Date: Thu, 12 Feb 1998 03:51:10 GMT Organization: . Lines: 19 Message-ID: <34e67037.6142732@news5.bellatlantic.net> References: <3 DOT 0 DOT 32 DOT 19980207131923 DOT 0083a980 AT dataplusnet DOT com> <34DCBB48 DOT 2F2D AT cs DOT com> Reply-To: rwaltman AT bellatlantic DOT net NNTP-Posting-Host: client-124-164.bellatlantic.net Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk >> Is there a way so I can specify the size of an integer in DJGPP. In MSDN >> help, it says that MSVC++ 5.0 has the following integer sizes: >> <...snip...> >> I am doing a program that calculates prime numbers, so the bigger the >> better. Is there any way I can get a 4 or 8 byte integer in DJGPP? >If you want to create your own integral data types, then there are a >large number of options available. <...snip...> There should be >plenty of references available on the Internet and in print; The book "C Interfaces and Implementations" by D.R.Hanson has source code for two packages implementing extended precision arithmetic and arbitrary precision arithmetic functions. The code is available at http://www.cs.princeton.edu/software/cii/ , but you'll probably need the book to be able to use it. RW.