Article View: comp.lang.prolog
Article #1382Re: The Craft of Prolog, pp. 126-30
From: Richard A. O'Keefe
Date: Fri, 09 Nov 1990 01:31
Date: Fri, 09 Nov 1990 01:31
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In article <4492@swi.swi.psy.uva.nl>, anjo@swi.psy.uva.nl (Anjo Anjewierden) writes: > I'm about to conclude every program in ``The Craft of Prolog'' will > run on Prolog implementations with 14-bit integer arithmetic. Is > this right? Probably not. The Prolog system I used with 14-bit integers was PDP-11 Prolog, and if I remember correctly that didn't include a sign bit. (Which is why library(long) exists. I had "improved" a program to do some clever things with arithmetic, and it was easier to implement bignums than to figure out how the program _used_ to work.) Another reason for doubting this is that I have been sent some errata; if there's any interest I could collate and post them. -- The problem about real life is that moving one's knight to QB3 may always be replied to with a lob across the net. --Alasdair Macintyre.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!samsung!munnari.oz.au!goanna!ok From: ok@goanna.cs.rmit.oz.au (Richard A. O'Keefe) Newsgroups: comp.lang.prolog Subject: Re: The Craft of Prolog, pp. 126-30 Message-ID: <4227@goanna.cs.rmit.oz.au> Date: 9 Nov 90 01:31:06 GMT References: <4492@swi.swi.psy.uva.nl> Organization: Comp Sci, RMIT, Melbourne, Australia Lines: 15