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Article #956The AFT Attribute
From: Geoff Mendal
Date: Tue, 16 Sep 1986 00:32
Date: Tue, 16 Sep 1986 00:32
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Hello Ada Fans, I'm confused again. In the LRM, 3.5.10(9) states (parenthetically) that the value of the AFT attribute is the smallest positive N such that (10 ** N) * T'DELTA >= 1.0. Now, 3.5.10(15) states that the value returned by AFT depends only on T'DELTA. [3.5.10(15) is a "note".] Can these two paragraphs imply a cohesive semantics for the AFT attribute? Using 3.5.10(9) on the following type: type Fix is delta 1.0 / 16.0 range 0.0 .. 1.0; The smallest value N that satisfies the equation is 2. But how can one represent 1.0 / 16.0 accurately in two decimal digits? [1.0 / 16.0 = 0.0625] What am I missing here? gom -------
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!mnetor!seismo!columbia!topaz!ll-xn!nike!ucbcad!ucbvax!SIERRA.STANFORD.EDU!Mendal From: Mendal@SIERRA.STANFORD.EDU (Geoff Mendal) Newsgroups: net.lang.ada Subject: The AFT Attribute Message-ID: <12239247219.20.MENDAL@Sierra.Stanford.EDU> Date: Mon, 15-Sep-86 20:32:59 EDT Article-I.D.: Sierra.12239247219.20.MENDAL Posted: Mon Sep 15 20:32:59 1986 Date-Received: Tue, 16-Sep-86 21:02:45 EDT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 21