From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,fc647120984c9ad2 X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news2.google.com!postnews.google.com!f1g2000cwa.googlegroups.com!not-for-mail From: "Adam Beneschan" Newsgroups: comp.lang.ada Subject: Re: Way to use Ada Mod function on floats? Date: 1 Dec 2006 09:21:07 -0800 Organization: http://groups.google.com Message-ID: <1164993667.776075.226720@f1g2000cwa.googlegroups.com> References: <1164987168.477589.240140@j44g2000cwa.googlegroups.com> NNTP-Posting-Host: 66.126.103.122 Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Trace: posting.google.com 1164993679 8014 127.0.0.1 (1 Dec 2006 17:21:19 GMT) X-Complaints-To: groups-abuse@google.com NNTP-Posting-Date: Fri, 1 Dec 2006 17:21:19 +0000 (UTC) User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.7.12) Gecko/20050922 Fedora/1.7.12-1.3.1,gzip(gfe),gzip(gfe) Complaints-To: groups-abuse@google.com Injection-Info: f1g2000cwa.googlegroups.com; posting-host=66.126.103.122; posting-account=cw1zeQwAAABOY2vF_g6V_9cdsyY_wV9w Xref: g2news2.google.com comp.lang.ada:7778 Date: 2006-12-01T09:21:07-08:00 List-Id: AAFellow@hotmail.com wrote: > Hi guys, > > I need to perform the mod operation on floats. Does anyone know of a > simple way to do this in Ada? It seems the mod function is only for > integers. I can probably multiply out the decimal places, and then > divide my answer back, but if there is a more simple way that saves > computations, I'd rather do that. > > Thank you for any help you can provide! The 'Remainder attribute may help---see A.5.3. T'Remainder(X,Y) [where T is a floating-point type] will return a value in the range [-Y/2, Y/2], which isn't exactly what you want, but I think you can just add Y to the result if it's negative. I'm assuming that Y is positive here. -- Adam