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<!DOCTYPE HTML PUBLIC "-//W3O//DTD W3 HTML 2.0//EN"><!-- This collection of hypertext pages is Copyright 1995-2005 by Steve Summit. --><!-- Content from the book "C Programming FAQs: Frequently Asked Questions" --><!-- (Addison-Wesley, 1995, ISBN 0-201-84519-9) is made available here by --><!-- permission of the author and the publisher as a service to the community. --><!-- It is intended to complement the use of the published text --><!-- and is protected by international copyright laws. --><!-- The on-line content may be accessed freely for personal use --><!-- but may not be published or retransmitted without explicit permission. --><!-- --><!-- this page built Sat Dec 24 21:47:46 2005 by faqproc version 2.7 --><!-- from source file ansi.sgml dated Wed Aug 11 00:43:45 2004 --><!-- corresponding to FAQ list version 4.0 --><html><!-- Mirrored from c-faq.com/ansi/ansi1.html by HTTrack Website Copier/3.x [XR&CO'2008], Sat, 14 Mar 2009 07:58:54 GMT --><head><meta name=GENERATOR content="faqproc"><title>Question 11.1</title><link href="../cpp/debugmacs.html" rev=precedes><link href="avail.html" rel=precedes><link href="index.html" rev=subdocument></head><body bgcolor="#ffffff"><a href="../cpp/debugmacs.html" rev=precedes><img src="../images/buttonleft.gif" alt="prev"></a><a href="index.html" rev=subdocument><img src="../images/buttonup.gif" alt="up"></a><a href="avail.html" rel=precedes><img src="../images/buttonright.gif" alt="next"></a> <a href="../index-2.html"><img src="../images/buttontop.gif" alt="top/contents"></a><a href="../search.html"><img src="../images/buttonsrch.gif" alt="search"></a><hr><p><!-- qbegin --><h1>comp.lang.c FAQ list<font color=blue>·</font><!-- qtag -->Question 11.1</h1><p><font face=Helvetica size=8 color=blue><b>Q:</b></font>What is the ``ANSI C Standard?''</p><p><hr><p><font face=Helvetica size=8 color=blue><b>A:</b></font>In 1983,the American National Standards Institute(ANSI)commissioned acommittee, X3J11,to standardize the C language.After a long, arduousprocess,including several widespread public reviews,the committee'sworkwasfinallyratified asANSX3.159-1989on December 14, 1989,and publishedin the spring of 1990.For the most part, ANSI C standardized existing practice,with a few additions from C++(most notablyfunction prototypes) andsupport for multinational character sets (including thecontroversialtrigraph sequences).The ANSI C standard also formalized the C run-time librarysupport routines.</p><p>A year or so later,the Standard wasadopted asan international standard,ISO/IEC 9899:1990,and this ISO Standard replaced the earlier X3.159even within the United States(where it was known asANSI/ISO 9899-1990 [1992]).As an ISO Standard,it issubject to ongoing revisionthrough the release of Technical Corrigenda and Normative Addenda.</p><p>In 1994,Technical Corrigendum 1(TC1)amended the Standardin about 40 places,most of them minor corrections or clarifications,andNormative Addendum 1(NA1)added about 50 pages of new material,mostly specifying new library functions for internationalization.In 1995, TC2 added a few more minor corrections.</p><p>Most recently,a major revision of the Standard,``C99'',has been completed and adopted.</p><p>Several versions of the Standard,including C99 andthe original ANSI Standard,haveincluded a ``Rationale,''explaining many of its decisions,and discussinga number of subtle points,including several of those covered here.</p><!-- aend --><p><hr><a href="../cpp/debugmacs.html" rev=precedes><img src="../images/buttonleft.gif" alt="prev"></a><a href="index.html" rev=subdocument><img src="../images/buttonup.gif" alt="up"></a><a href="avail.html" rel=precedes><img src="../images/buttonright.gif" alt="next"></a> <a href="../questions.html"><img src="../images/buttontop.gif" alt="contents"></a><a href="../search.html"><img src="../images/buttonsrch.gif" alt="search"></a><br><!-- lastfooter --><a href="../about.html">about this FAQ list</a> <a href="../eskimo.html">about eskimo</a> <a href="../search.html">search</a> <a href="../feedback.html">feedback</a> <a href="copyright.html">copyright</a><p>Hosted by<a href="http://www.eskimo.com/"><img src="../../www.eskimo.com/img/link/eskitiny.gif" alt="Eskimo North"></a></body><!-- Mirrored from c-faq.com/ansi/ansi1.html by HTTrack Website Copier/3.x [XR&CO'2008], Sat, 14 Mar 2009 07:58:54 GMT --></html>⌨️ 快捷键说明
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