gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s02.html - Issue 3050029: [gcc] GCC 4.5.0=>4.5.1

Unified Diff: gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s02.html

Issue 3050029: [gcc] GCC 4.5.0=>4.5.1 (Closed) Base URL: ssh://git@gitrw.chromium.org:9222/nacl-toolchain.git

Patch Set: Created 10 years, 5 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

View side-by-side diff with in-line comments

Index: gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s02.html

diff --git a/gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s02.html b/gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s02.html

deleted file mode 100644

index c71af4b5e06c976cc63569c8aa07f1bd42343f1e..0000000000000000000000000000000000000000

--- a/gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s02.html

+++ /dev/null

@@ -1,40 +0,0 @@

-<?xml version="1.0" encoding="UTF-8" standalone="no"?>

-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

-<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>Case Sensitivity</title><meta name="generator" content="DocBook XSL Stylesheets V1.74.0" /><meta name="keywords" content="
 ISO C++
 , 
 library
 " /><link rel="home" href="../spine.html" title="The GNU C++ Library Documentation" /><link rel="up" href="bk01pt05ch13.html" title="Chapter 13. String Classes" /><link rel="prev" href="bk01pt05ch13.html" title="Chapter 13. String Classes" /><link rel="next" href="bk01pt05ch13s03.html" title="Arbitrary Character Types" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Case Sensitivity</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="bk01pt05ch13.html">Prev</a> </td><th width="60%" align="center">Chapter 13. String Classes</th><td width="20%" align="right"> <a accesskey="n" href="bk01pt05ch13s03.html">Next</a></td></tr></table><hr /></div><div class="sect1" lang="en" xml:lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="strings.string.case"></a>Case Sensitivity</h2></div></div></div><p>

- </p><p>The well-known-and-if-it-isn't-well-known-it-ought-to-be

- <a class="ulink" href="http://www.gotw.ca/gotw/" target="_top">Guru of the Week</a>

- discussions held on Usenet covered this topic in January of 1998.

- Briefly, the challenge was, “<span class="quote">write a 'ci_string' class which

- is identical to the standard 'string' class, but is

- case-insensitive in the same way as the (common but nonstandard)

- C function stricmp()</span>”.

- </p><pre class="programlisting">

- ci_string s( "AbCdE" );

- // case insensitive

- assert( s == "abcde" );

- assert( s == "ABCDE" );

- // still case-preserving, of course

- assert( strcmp( s.c_str(), "AbCdE" ) == 0 );

- assert( strcmp( s.c_str(), "abcde" ) != 0 ); </pre><p>The solution is surprisingly easy. The original answer was

- posted on Usenet, and a revised version appears in Herb Sutter's

- book <span class="emphasis"><em>Exceptional C++</em></span> and on his website as <a class="ulink" href="http://www.gotw.ca/gotw/029.htm" target="_top">GotW 29</a>.

- </p><p>See? Told you it was easy!</p><p>

- <span class="emphasis"><em>Added June 2000:</em></span> The May 2000 issue of C++

- Report contains a fascinating <a class="ulink" href="http://lafstern.org/matt/col2_new.pdf" target="_top"> article</a> by

- Matt Austern (yes, <span class="emphasis"><em>the</em></span> Matt Austern) on why

- case-insensitive comparisons are not as easy as they seem, and

- why creating a class is the <span class="emphasis"><em>wrong</em></span> way to go

- about it in production code. (The GotW answer mentions one of

- the principle difficulties; his article mentions more.)

- </p><p>Basically, this is "easy" only if you ignore some things,

- things which may be too important to your program to ignore. (I chose

- to ignore them when originally writing this entry, and am surprised

- that nobody ever called me on it...) The GotW question and answer

- remain useful instructional tools, however.

- </p><p><span class="emphasis"><em>Added September 2000:</em></span> James Kanze provided a link to a

- <a class="ulink" href="http://www.unicode.org/unicode/reports/tr21/" target="_top">Unicode

- Technical Report discussing case handling</a>, which provides some

- very good information.

- </p></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="bk01pt05ch13.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="bk01pt05ch13.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="bk01pt05ch13s03.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 13. String Classes </td><td width="20%" align="center"><a accesskey="h" href="../spine.html">Home</a></td><td width="40%" align="right" valign="top"> Arbitrary Character Types</td></tr></table></div></body></html>

« no previous file with comments | « gcc/libstdc++-v3/doc/html/manual/bk01pt03ch08.html ('k') | gcc/libstdc++-v3/doc/html/manual/bk01pt05ch13s04.html » ('j') | no next file with comments »