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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,31d67020d4b04d5b X-Google-Attributes: gid103376,public From: dennison@telepath.com Subject: Re: Simple Real_Time.Time_Span question Date: 1998/10/14 Message-ID: <702b25$30a$1@nnrp1.dejanews.com>#1/1 X-Deja-AN: 400961643 References: <6vvsgo$rvo$1@nnrp1.dejanews.com> <700usk$cht$1@nnrp1.dejanews.com> X-Http-Proxy: 1.0 x7.dejanews.com:80 (Squid/1.1.22) for client 204.48.27.130 Organization: Deja News - The Leader in Internet Discussion X-Article-Creation-Date: Wed Oct 14 14:04:53 1998 GMT Newsgroups: comp.lang.ada X-Http-User-Agent: Mozilla/4.05 [en] (WinNT; I) Date: 1998-10-14T00:00:00+00:00 List-Id: In article <700usk$cht$1@nnrp1.dejanews.com>, dewar@gnat.com wrote: > It is odd for a compiler not to choose a sufficient precision for Duration > to accurately represent a Time_Span value. Certainly in the case of GNAT, > Duration is represented in nanoseconds, and you will not lose any precision > following the conversion path you suggest. I hate to drag my own thread off topic, but how did you do that? According to 9.6(27) Duration has to represent up to 86,400 seconds. For a "classical" implementation of a fixed-point type that can represent both 86,400 and 0.000_000_001, my poor calculations tell me you'd need at least 47 bits. On a 32-bit processor that would be tricky. -- T.E.D. -----------== Posted via Deja News, The Discussion Network ==---------- http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own