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| 58 | <span id="Conditional-Syntax"></span><div class="header">
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| 59 | <p>
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| 60 | Next: <a href="Deleted-Code.html" accesskey="n" rel="next">Deleted Code</a>, Previous: <a href="Conditional-Uses.html" accesskey="p" rel="prev">Conditional Uses</a>, Up: <a href="Conditionals.html" accesskey="u" rel="up">Conditionals</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Index.html" title="Index" rel="index">Index</a>]</p>
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| 63 | <span id="Syntax-of-Preprocessing-Conditionals"></span><h4 class="subsection">26.6.2 Syntax of Preprocessing Conditionals</h4>
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| 64 |
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| 65 | <span id="index-_0023if"></span>
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| 66 | <p>A preprocessing conditional begins with a <em>conditional
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| 67 | directive</em>: <code>#if</code>, <code>#ifdef</code> or <code>#ifndef</code>.
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| 68 | </p>
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| 70 | <tr><td align="left" valign="top">• <a href="ifdef.html" accesskey="1">ifdef</a></td><td> </td><td align="left" valign="top">
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