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Technical Standard
Technical Standard X/Open Curses, Issue 7 The Open Group ©November 2009, The Open Group All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the copyright owners. Technical Standard X/Open Curses, Issue 7 ISBN: 1-931624-83-6 Document Number: C094 Published in the U.K. by The Open Group, November 2009. This standardhas been prepared by The Open Group Base Working Group. Feedback relating to the material contained within this standardmay be submitted by using the web site at http://austingroupbugs.net with the Project field set to "Xcurses Issue 7". ii Technical Standard 2009 Contents Chapter 1 Introduction........................................................................................... 1 1.1 This Document ........................................................................................ 1 1.1.1 Relationship to Previous Issues ......................................................... 1 1.1.2 Features Introduced in Issue 7 ........................................................... 2 1.1.3 Features Withdrawn in Issue 7........................................................... 2 1.1.4 Features Introduced in Issue 4 ........................................................... 2 1.2 Conformance............................................................................................ 3 1.2.1 Base Curses Conformance ................................................................. -
Communications/Information
Communications/Information Volume 7 — November 2008 Issue date: November 7, 2008 Info Update is published by the Canadian Standards Association (CSA) eight times a year. It contains important information about new and existing standards, e.g., recently published standards, and withdrawn standards. It also gives you highlights of other activities and services. CSA offers a free online service called Keep Me Informed that will notify registered users when each new issue of Info Update is published. To register go to http://www.csa-intl.org/onlinestore/KeepMeInformed/PleaseIdentifyYourself.asp?Language=EN. To view the complete issue of Info Update visit http://standardsactivities.csa.ca/standardsactivities/default.asp?language=en. y Completed Projects / Projets terminés New Standards — New Editions — Special Publications Please note: The following standards were developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), and have been adopted by the Canadian Standards Association. These standards are available in Portable Document Format (PDF) only. CAN/CSA-ISO/IEC 7812-2:08, 2nd edition Identification cards — Identification of issuers — Part 2: Application and registration procedures (Adopted ISO/IEC 7812-2:2007).................................................................. $110 CAN/CSA-ISO/IEC 7816-2:08, 1st edition Identification cards — Integrated circuit cards — Part 2: Cards with contacts — Dimensions and location of the contacts (Adopted ISO/IEC 7816-2:2007) ......................... $60 CAN/CSA-ISO/IEC 7816-13:08, 1st edition Identification cards — Integrated circuit cards — Part 13: Commands for application management in a multi-application environment (Adopted ISO/IEC 7816-13:2007)....... $110 CAN/CSA-ISO/IEC 8484:08, 1st edition Information technology — Magnetic stripes on savingsbooks (Adopted ISO/IEC 8484:2007) ...................................................................................... -
Instructions to the Ada Rapporteur Group from SC22/WG9 For
Work Programme of ISO/IEC JTC1/SC22/WG9 (Ada) For presentation to the SIGAda Conference December 2003 Jim Moore, [The MITRE Corporation] Convener of ISO/IEC JTC1/SC22/WG9 In this presentation, Jim Moore is representing his opinions as an officer of ISO/IEC JTC1/SC22/WG9. His opinions do not necessarily represent those of The MITRE Corporation or any of its sponsors. Goal for the Presentation A quick description of international standardization. An overview of the work programme of the standards committee responsible for Ada. A description of the process and constraints for amending the Ada language standard. Who Makes Standards? De jure standards are formal standards made Today’s by organizations authorized, in some way, to Subject make them. Examples include ISO and IEEE standards. De facto standards (more properly called specifications) are those recognized by the marketplace as important. Examples include OMG CORBA, Windows API. Developers of International Standards ISO IEC ITU ... TC176 JTC1 TC56 SC65A Quality Information Technology Dependability Functional Safety ... SC7 SC22 Software & Systems Languages, OS Engineering WG9 Ada Developers of US Standards ANSI INCITS AIAA ANS ASTM EIA IEEE PMI OMG About 550 organizations in the U. S. make standards. About half of them are accredited by ANSI, allowing them to participate in international standardization activity. Three Ways to Make a US Standard Accredited Standards Organization: An organization that does many things including making standards, e.g. IEEE. Accredited Standards -
Synchronizing Threads with POSIX Semaphores
3/17/2016 POSIX Semaphores Synchronizing Threads with POSIX Semaphores 1. Why semaphores? 2. Posix semaphores are easy to use sem_init sem_wait sem_post sem_getvalue sem_destroy 3. Activities 1 2 Now it is time to take a look at some code that does something a little unexpected. The program badcnt.c creates two new threads, both of which increment a global variable called cnt exactly NITER, with NITER = 1,000,000. But the program produces unexpected results. Activity 1. Create a directory called posixsem in your class Unix directory. Download in this directory the code badcnt.c and compile it using gcc badcnt.c -o badcnt -lpthread Run the executable badcnt and observe the ouput. Try it on both tanner and felix. Quite unexpected! Since cnt starts at 0, and both threads increment it NITER times, we should see cnt equal to 2*NITER at the end of the program. What happens? Threads can greatly simplify writing elegant and efficient programs. However, there are problems when multiple threads share a common address space, like the variable cnt in our earlier example. To understand what might happen, let us analyze this simple piece of code: THREAD 1 THREAD 2 a = data; b = data; a++; b--; data = a; data = b; Now if this code is executed serially (for instance, THREAD 1 first and then THREAD 2), there are no problems. However threads execute in an arbitrary order, so consider the following situation: Thread 1 Thread 2 data a = data; --- 0 a = a+1; --- 0 --- b = data; // 0 0 --- b = b + 1; 0 data = a; // 1 --- 1 --- data = b; // 1 1 So data could end up +1, 0, -1, and there is NO WAY to know which value! It is completely non- deterministic! http://www.csc.villanova.edu/~mdamian/threads/posixsem.html 1/4 3/17/2016 POSIX Semaphores The solution to this is to provide functions that will block a thread if another thread is accessing data that it is using. -
Report Received March 2006
2005 was a busy year for me as of POSIX was published (the the USENIX standards represen- Shell and Utilities volume), and tative. There are three major it became a second ISO standard. NICHOLAS M. STOUGHTON standards that I watch carefully: Amendments to these standards I POSIX, which also incorpo- were also under development, USENIX rates the Single UNIX Specifi- and led to the addition of real- cation time interfaces, including Standards I ISO-C pthreads, to the core system call I The Linux Standard Base (LSB) set. Many of the other projects Activities died away as the people involved In order to do that, USENIX lost interest or hit political road- funds my participation in the blocks (most of which were Nick is the USENIX Standards committees that develop and reported in ;login: at the time). Liaison and represents the maintain these standards. Association in the POSIX, ISO C, Throughout 2005, the Free Until the end of the twentieth and LSB working groups. He is century, POSIX was developed the ISO organizational repre- Standards Group (FSG) also sentative to the Austin Group, helped fund these activities. For and maintained by IEEE exclu- a member of INCITS commit- each of these, let’s look at the his- sively. At the same time, the tees J11 and CT22, and the Open Group (also known as Specification Authority sub- tory of the standards, then at group leader for the LSB. what has happened over the past X/Open) had an entirely separate but 100% overlapping standard, [email protected] 12 months or so, and, finally, what is on the agenda for this known as the Single UNIX year. -
The Evolution of Lisp
1 The Evolution of Lisp Guy L. Steele Jr. Richard P. Gabriel Thinking Machines Corporation Lucid, Inc. 245 First Street 707 Laurel Street Cambridge, Massachusetts 02142 Menlo Park, California 94025 Phone: (617) 234-2860 Phone: (415) 329-8400 FAX: (617) 243-4444 FAX: (415) 329-8480 E-mail: [email protected] E-mail: [email protected] Abstract Lisp is the world’s greatest programming language—or so its proponents think. The structure of Lisp makes it easy to extend the language or even to implement entirely new dialects without starting from scratch. Overall, the evolution of Lisp has been guided more by institutional rivalry, one-upsmanship, and the glee born of technical cleverness that is characteristic of the “hacker culture” than by sober assessments of technical requirements. Nevertheless this process has eventually produced both an industrial- strength programming language, messy but powerful, and a technically pure dialect, small but powerful, that is suitable for use by programming-language theoreticians. We pick up where McCarthy’s paper in the first HOPL conference left off. We trace the development chronologically from the era of the PDP-6, through the heyday of Interlisp and MacLisp, past the ascension and decline of special purpose Lisp machines, to the present era of standardization activities. We then examine the technical evolution of a few representative language features, including both some notable successes and some notable failures, that illuminate design issues that distinguish Lisp from other programming languages. We also discuss the use of Lisp as a laboratory for designing other programming languages. We conclude with some reflections on the forces that have driven the evolution of Lisp. -
Openextensions POSIX Conformance Document
z/VM Version 7 Release 1 OpenExtensions POSIX Conformance Document IBM GC24-6298-00 Note: Before you use this information and the product it supports, read the information in “Notices” on page 73. This edition applies to version 7, release 1, modification 0 of IBM z/VM (product number 5741-A09) and to all subsequent releases and modifications until otherwise indicated in new editions. Last updated: 2018-09-12 © Copyright International Business Machines Corporation 1993, 2018. US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp. Contents List of Tables........................................................................................................ ix About This Document............................................................................................xi Intended Audience......................................................................................................................................xi Conventions Used in This Document.......................................................................................................... xi Where to Find More Information.................................................................................................................xi Links to Other Documents and Websites.............................................................................................. xi How to Send Your Comments to IBM....................................................................xiii Summary of Changes for z/VM -
NINETEENTH PLENARY MEETING of ISO/IEC JTC 1/SC 22 London, United Kingdom September 19-22, 2006 [20060918/22] Version 1, April 17, 2006 1
NINETEENTH PLENARY MEETING OF ISO/IEC JTC 1/SC 22 London, United Kingdom September 19-22, 2006 [20060918/22] Version 1, April 17, 2006 1. OPENING OF PLENARY MEETING (9:00 hours, Tuesday, September 19) 2. CHAIRMAN'S REMARKS 3. ROLL CALL OF DELEGATES 4. APPOINTMENT OF DRAFTING COMMITTEE 5. ADOPTION OF THE AGENDA 6. REPORT OF THE SECRETARY 6.1 SC 22 Project Information 6.2 Proposals for New Work Items within SC 22 6.3 Outstanding Actions From the Eighteenth Plenary of SC 22 Page 1 of 7 JTC 1 SC 22, 2005 Version 1, April 14, 2006 6.4 Transition to ISO Livelink 6.4.1 SC 22 Transition 7. ACTIVITY REPORTS 7.1 National Body Reports 7.2 External Liaison Reports 7.2.1 ECMA International (Rex Jaeschke) 7.2.2 Free Standards Group (Nick Stoughton) 7.2.2 Austin Joint Working Group (Nick Stoughton) 7.3 Internal Liaison Reports 7.3.1 Liaison Officers from JTC 1/SC 2 (Mike Ksar) 7.3.2 Liaison Officer from JTC 1/SC 7 (J. Moore) Page 2 of 7 JTC 1 SC 22, 2005 Version 1, April 14, 2006 7.3.3 Liaison Officer from ISO/TC 37 (Keld Simonsen) 7.3.5 Liaison Officer from JTC 1 SC 32 (Frank Farance) 7.4 Reports from SC 22 Subgroups 7.4.1 Other Working Group Vulnerabilities (Jim Moore) 7.4.2 SC 22 Advisory Group for POSIX (Stephen Walli) 7.5 Reports from JTC 1 Subgroups 7.5.1 JTC 1 Vocabulary (John Hill) 7.5.2 JTC 1 Ad Hoc Directives (John Hill) 8. -
So You Think You Know C? [Pdf]
So You Think You Know C? And Ten More Short Essays on Programming Languages by Oleksandr Kaleniuk Published in 2020 This is being published under the Creative Commons Zero license. I have dedicated this work to the public domain by waiving all of my rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. Table of Contents Introduction......................................................................................................... 4 So you think you know C?..................................................................................6 APL deserves its renaissance too.......................................................................13 Going beyond the idiomatic Python..................................................................30 Why Erlang is the only true computer language................................................39 The invisible Prolog in C++..............................................................................43 One reason you probably shouldn’t bet your whole career on JavaScript.........54 You don't have to learn assembly to read disassembly......................................57 Fortran is still a thing........................................................................................64 Learn you a Lisp in 0 minutes...........................................................................68 Blood, sweat, -
IT Acronyms.Docx
List of computing and IT abbreviations /.—Slashdot 1GL—First-Generation Programming Language 1NF—First Normal Form 10B2—10BASE-2 10B5—10BASE-5 10B-F—10BASE-F 10B-FB—10BASE-FB 10B-FL—10BASE-FL 10B-FP—10BASE-FP 10B-T—10BASE-T 100B-FX—100BASE-FX 100B-T—100BASE-T 100B-TX—100BASE-TX 100BVG—100BASE-VG 286—Intel 80286 processor 2B1Q—2 Binary 1 Quaternary 2GL—Second-Generation Programming Language 2NF—Second Normal Form 3GL—Third-Generation Programming Language 3NF—Third Normal Form 386—Intel 80386 processor 1 486—Intel 80486 processor 4B5BLF—4 Byte 5 Byte Local Fiber 4GL—Fourth-Generation Programming Language 4NF—Fourth Normal Form 5GL—Fifth-Generation Programming Language 5NF—Fifth Normal Form 6NF—Sixth Normal Form 8B10BLF—8 Byte 10 Byte Local Fiber A AAT—Average Access Time AA—Anti-Aliasing AAA—Authentication Authorization, Accounting AABB—Axis Aligned Bounding Box AAC—Advanced Audio Coding AAL—ATM Adaptation Layer AALC—ATM Adaptation Layer Connection AARP—AppleTalk Address Resolution Protocol ABCL—Actor-Based Concurrent Language ABI—Application Binary Interface ABM—Asynchronous Balanced Mode ABR—Area Border Router ABR—Auto Baud-Rate detection ABR—Available Bitrate 2 ABR—Average Bitrate AC—Acoustic Coupler AC—Alternating Current ACD—Automatic Call Distributor ACE—Advanced Computing Environment ACF NCP—Advanced Communications Function—Network Control Program ACID—Atomicity Consistency Isolation Durability ACK—ACKnowledgement ACK—Amsterdam Compiler Kit ACL—Access Control List ACL—Active Current -
Gábor Melis to Keynote European Lisp Symposium
Gábor Melis to Keynote European Lisp Symposium OAKLAND, Calif. — April 14, 2014 —Franz Inc.’s Senior Engineer, Gábor Melis, will be a keynote speaker at the 7th annual European Lisp Symposium (ELS’14) this May in Paris, France. The European Lisp Symposium provides a forum for the discussion and dissemination of all aspects of design, implementationand application of any of the Lisp and Lisp- inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop etc. Sending Beams into the Parallel Cube A pop-scientific look through the Lisp lens at machine learning, parallelism, software, and prize fighting We send probes into the topic hypercube bounded by machine learning, parallelism, software and contests, demonstrate existing and sketch future Lisp infrastructure, pin the future and foreign arrays down. We take a seemingly random walk along the different paths, watch the scenery of pairwise interactions unfold and piece a puzzle together. In the purely speculative thread, we compare models of parallel computation, keeping an eye on their applicability and lisp support. In the the Python and R envy thread, we detail why lisp could be a better vehicle for scientific programming and how high performance computing is eroding lisp’s largely unrealized competitive advantages. Switching to constructive mode, a basic data structure is proposed as a first step. In the machine learning thread, lisp’s unparalleled interactive capabilities meet contests, neural networks cross threads and all get in the way of the presentation. Video Presentation About Gábor Melis Gábor Melis is a consultant at Franz Inc. -
Software Engineering Standards Introduction
6/21/2008 Software Engineering Standards Introduction 1028 9126 730 12207 9000 CMM 15288 CMMI J-016 1679 Outline 1. Definitions 2. Sources of Standards 3. Why Use Standards ? 4. ISO and Software Engineering Standards 5. IEEE Software Engineering Collection Sources: IEEE Standards, Software Engineering, Volume Three: Product Standards, Introduction to the1999 Edition, pages i to xxiii. Horch, J., ‘Practical Guide to Software Quality management’, Artech House, 1996, chap 2. Wells, J., ‘An Introduction to IEEE/EIA 12207’, US DoD, SEPO, 1999. Moore, J., ‘Selecting Software Engineering Standards’, QAI Conference, 1998. Moore, J., ‘The Road Map to Software Engineering: A Standards-Based Guide’, Wiley-IEEE Computer Society Press, 2006. Moore, J.,’An Integrated Collection of Software Engineering Standards’, IEEE Software, Nov 1999. Gray, L., ‘Guidebook to IEEE/EIA 12207 Standard for Information Technology, Software Life Cycle Processes’, Abelia Corporation, Fairfax, Virginia, 2000. Coallier, F.; International Standardization in Software and Systems Engineering, Crosstalk, February 2003, pp. 18-22. 6/21/2008 2 1 6/21/2008 Exemple d’un système complexe Système de transport aérien Système de transport Système de Transport Aérien terrestre Système de Système de gestion du trafic réservation aérien Système Système aéroportuaire de distribution du kérosène SystèmeSystème avionique avion Système de Système de gestion de la Structure vie à bord SystèmeSystème de de équipage propulsionpropulsion Système SystèmeNavigation de de SystèmeVisualisation Système de navigationsystem de visualisation contrôle de vol SystèmeSystème de de réception réception Système de GPSGPS transport terrestremaritime 6/21/2008 3 Toward a Software Engineering Profession • What does it take ? 1. Body of Knowledge (e.g. SWEBOK) 2.