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<h2 class="sectionedit1"><a name="constant_escape_sequences" id="constant_escape_sequences">Constant Escape Sequences</a></h2>
<div class="level2">

<p>

The following escape sequences can be used to define certain special characters
within strings:

</p>
<div class="table sectionedit2"><table class="inline">
	<tr class="row0">
		<th class="col0 centeralign">  Escape Sequence  </th><th class="col1 centeralign">  Description  </th>
	</tr>
	<tr class="row1">
		<td class="col0">\&#039;</td><td class="col1">Single quote</td>
	</tr>
	<tr class="row2">
		<td class="col0">\â</td><td class="col1">Double quote</td>
	</tr>
	<tr class="row3">
		<td class="col0">\\</td><td class="col1">Backslash</td>
	</tr>
	<tr class="row4">
		<td class="col0">\nnn</td><td class="col1">Octal number (nnn)</td>
	</tr>
	<tr class="row5">
		<td class="col0">\0</td><td class="col1">Null character (really just the octal number zero)</td>
	</tr>
	<tr class="row6">
		<td class="col0">\a</td><td class="col1">Audible bell</td>
	</tr>
	<tr class="row7">
		<td class="col0">\b</td><td class="col1">Backspace</td>
	</tr>
	<tr class="row8">
		<td class="col0">\f</td><td class="col1">Formfeed</td>
	</tr>
	<tr class="row9">
		<td class="col0">\n</td><td class="col1">Newline</td>
	</tr>
	<tr class="row10">
		<td class="col0">\r</td><td class="col1">Carriage return</td>
	</tr>
	<tr class="row11">
		<td class="col0">\t</td><td class="col1">Horizontal tab</td>
	</tr>
	<tr class="row12">
		<td class="col0">\v</td><td class="col1">Vertical tab</td>
	</tr>
	<tr class="row13">
		<td class="col0">\xnn</td><td class="col1">Hexadecimal number (nn)</td>
	</tr>
</table></div>
<!-- EDIT2 TABLE [135-455] -->
<p>

An example of this is contained in the following code (which assumes that the
newline character generates complete newlines, i.e. on Unix systems):
</p>
<pre class="cpp code cpp">    <span class="kw3">printf</span><span class="br0">&#40;</span> <span class="st0">&quot;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">\&quot;</span>How are you?<span class="es1">\&quot;</span><span class="es1">\n</span>&quot;</span> <span class="br0">&#41;</span><span class="sy4">;</span></pre>
<p>
which would display
</p>
<pre class="code">
    This
    is
    a
    test

    She said, "How are you?"</pre>
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