/www.cppreference.com/wiki/escape_sequences
#! | 104 lines | 98 code | 6 blank | 0 comment | 0 complexity | 7b845e44b8d69a76307a9820180de4ad MD5 | raw file
1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" 4 lang="en" dir="ltr"> 5<head> 6 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 7 <title>escape_sequences</title> 8<meta name="generator" content="DokuWiki" /> 9<meta name="robots" content="index,follow" /> 10<meta name="date" content="2010-10-28T18:17:16-0700" /> 11<meta name="keywords" content="escape_sequences" /> 12<link rel="search" type="application/opensearchdescription+xml" href="http://www.cppreference.com/wiki/lib/exe/opensearch.php" title="C++ Reference" /> 13<link rel="start" href="../index.html" /> 14<link rel="contents" href="http://www.cppreference.com/wiki/escape_sequences?do=index" title="Sitemap" /> 15<link rel="alternate" type="application/rss+xml" title="Recent Changes" href="http://www.cppreference.com/wiki/feed.php" /> 16<link rel="alternate" type="application/rss+xml" title="Current Namespace" href="http://www.cppreference.com/wiki/feed.php?mode=list&ns=" /> 17<link rel="alternate" type="text/html" title="Plain HTML" href="http://www.cppreference.com/wiki/_export/xhtml/escape_sequences" /> 18<link rel="alternate" type="text/plain" title="Wiki Markup" href="http://www.cppreference.com/wiki/_export/raw/escape_sequences" /> 19<link rel="canonical" href="escape_sequences" /> 20<link rel="stylesheet" media="screen" type="text/css" href="lib/exe/css.php@t=custom1&tseed=1289693594" /> 21<link rel="stylesheet" media="all" type="text/css" href="lib/exe/css.php@s=all&t=custom1&tseed=1289693594" /> 22<link rel="stylesheet" media="print" type="text/css" href="lib/exe/css.php@s=print&t=custom1&tseed=1289693594" /> 23<script type="text/javascript" ><!--//--><![CDATA[//><!-- 24var NS='';var JSINFO = {"id":"escape_sequences","namespace":""}; 25//--><!]]></script> 26<script type="text/javascript" charset="utf-8" src="lib/exe/js.php@tseed=1289693594" ></script> 27</head> 28<body> 29<div class="dokuwiki export"> 30 31<h2 class="sectionedit1"><a name="constant_escape_sequences" id="constant_escape_sequences">Constant Escape Sequences</a></h2> 32<div class="level2"> 33 34<p> 35 36The following escape sequences can be used to define certain special characters 37within strings: 38 39</p> 40<div class="table sectionedit2"><table class="inline"> 41 <tr class="row0"> 42 <th class="col0 centeralign"> Escape Sequence </th><th class="col1 centeralign"> Description </th> 43 </tr> 44 <tr class="row1"> 45 <td class="col0">\'</td><td class="col1">Single quote</td> 46 </tr> 47 <tr class="row2"> 48 <td class="col0">\â</td><td class="col1">Double quote</td> 49 </tr> 50 <tr class="row3"> 51 <td class="col0">\\</td><td class="col1">Backslash</td> 52 </tr> 53 <tr class="row4"> 54 <td class="col0">\nnn</td><td class="col1">Octal number (nnn)</td> 55 </tr> 56 <tr class="row5"> 57 <td class="col0">\0</td><td class="col1">Null character (really just the octal number zero)</td> 58 </tr> 59 <tr class="row6"> 60 <td class="col0">\a</td><td class="col1">Audible bell</td> 61 </tr> 62 <tr class="row7"> 63 <td class="col0">\b</td><td class="col1">Backspace</td> 64 </tr> 65 <tr class="row8"> 66 <td class="col0">\f</td><td class="col1">Formfeed</td> 67 </tr> 68 <tr class="row9"> 69 <td class="col0">\n</td><td class="col1">Newline</td> 70 </tr> 71 <tr class="row10"> 72 <td class="col0">\r</td><td class="col1">Carriage return</td> 73 </tr> 74 <tr class="row11"> 75 <td class="col0">\t</td><td class="col1">Horizontal tab</td> 76 </tr> 77 <tr class="row12"> 78 <td class="col0">\v</td><td class="col1">Vertical tab</td> 79 </tr> 80 <tr class="row13"> 81 <td class="col0">\xnn</td><td class="col1">Hexadecimal number (nn)</td> 82 </tr> 83</table></div> 84<!-- EDIT2 TABLE [135-455] --> 85<p> 86 87An example of this is contained in the following code (which assumes that the 88newline character generates complete newlines, i.e. on Unix systems): 89</p> 90<pre class="cpp code cpp"> <span class="kw3">printf</span><span class="br0">(</span> <span class="st0">"This<span class="es1">\n</span>is<span class="es1">\n</span>a<span class="es1">\n</span>test<span class="es1">\n</span><span class="es1">\n</span>She said, <span class="es1">\"</span>How are you?<span class="es1">\"</span><span class="es1">\n</span>"</span> <span class="br0">)</span><span class="sy4">;</span></pre> 91<p> 92which would display 93</p> 94<pre class="code"> 95 This 96 is 97 a 98 test 99 100 She said, "How are you?"</pre> 101</div> 102</div> 103</body> 104</html>