https://dl.acm.org/doi/10.1145/4284.315122 ACM Digital Library home ACM home * Advanced Search * Browse * About * + Sign in + Register * * Advanced Search * Journals * Magazines * Proceedings * Books * SIGs * Conferences * People * * More * Search ACM Digital Library[ ] SearchSearch Advanced Search Communications of the ACM * Magazine Home * Latest Issue * * Archive * Authors * About + CACM Affiliations + ACM Award Winners * More * Home * Magazines * Communications of the ACM * Vol. 28, No. 9 * Programmimg pearls article Free Access Share on Programmimg pearls * Author: * #Jon Bentley AT&T Bell Laboratories, Room 2C-317, 600 Mountain Ave., Murray Hill, NJ AT&T Bell Laboratories, Room 2C-317, 600 Mountain Ave., Murray Hill, NJ View Profile Authors Info & Claims Communications of the ACMVolume 28Issue 9Sept. 1985 pp 896-901https:/ /doi.org/10.1145/4284.315122 Published:01 September 1985Publication History * 9citation * 1,850 * Downloads Metrics Total Citations9 Total Downloads1,850 Last 12 Months159 Last 6 weeks40 * * Get Citation Alerts New Citation Alert added! This alert has been successfully added and will be sent to: You will be notified whenever a record that you have chosen has been cited. To manage your alert preferences, click on the button below. Manage my Alerts New Citation Alert! Please log in to your account * Save to Binder Save to Binder [loader] Create a New Binder Name [ ] + Cancel + Create * Export Citation * Publisher Site * * eReader * PDF Communications of the ACM Volume 28, Issue 9 PreviousArticleNextArticle ACM Digital Library First page image Index Terms 1. Programmimg pearls 1. General and reference 1. Document types Comments Please enable JavaScript to view thecomments powered by Disqus. Login options Check if you have access through your login credentials or your institution to get full access on this article. Sign in Full Access Get this Article * Information * Contributors * Published in cover image Communications of the ACM Communications of the ACM Volume 28, Issue 9 Sept. 1985 118 pages ISSN:0001-0782 EISSN:1557-7317 DOI:10.1145/4284 + Editor: + #Peter J. Denning NASA Ames Research Center, Moffett Field, CA Issue's Table of Contents Copyright (c) 1985 ACM Sponsors In-Cooperation Publisher Association for Computing Machinery New York, NY, United States Publication History + Published: 1 September 1985 Permissions Request permissions about this article. Request Permissions Qualifiers + article Conference Funding Sources * [loader] Other Metrics View Article Metrics * Bibliometrics * Citations9 * Article Metrics + 9 Total Citations View Citations + 1,850 Total Downloads + Downloads (Last 12 months)159 + Downloads (Last 6 weeks)40 Other Metrics View Author Metrics * Cited By View all PDF Format View or Download as a PDF file. PDF eReader View online with eReader. eReader Digital Edition View this article in digital edition. View Digital Edition * Figures * Other * * Share this Publication link https://dl.acm.org/doi/10.1145/4284.315122 Copy Link Share on Social Media Share on * * * * 0References * * * Close Figure Viewer Browse AllReturnChange zoom level[ ] Caption View Issue's Table of Contents Export Citations Select Citation format[BibTeX ] * Preview is not available. By clicking download,a new tab will open to start the export process. The process may takea few minutes but once it finishes a file will be downloaded on your browser soplease do not close the new tab. Download + Download citation + Copy citation Categories * Journals * Magazines * Books * Proceedings * SIGs * Conferences * Collections * People About * About ACM Digital Library * ACM Digital Library Board * Subscription Information * Author Guidelines * Using ACM Digital Library * All Holdings within the ACM Digital Library * ACM Computing Classification System * Digital Library Accessibility Join * Join ACM * Join SIGs * Subscribe to Publications * Institutions and Libraries Connect * Contact * Facebook * Twitter * Linkedin * Feedback * Bug Report The ACM Digital Library is published by the Association for Computing Machinery. Copyright (c) 2022 ACM, Inc. * Terms of Usage * Privacy Policy * Code of Ethics ACM Digital Library home ACM home About Cookies On This Site We use cookies to ensure that we give you the best experience on our website. Learn more Got it!