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| 22 | <title>Omitting Types (GNU C Language Manual)</title>
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| 31 | <link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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| 32 | <link href="Variables.html" rel="up" title="Variables">
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| 33 | <link href="Type-Qualifiers.html" rel="next" title="Type Qualifiers">
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| 57 | <body lang="en">
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| 58 | <span id="Omitting-Types"></span><div class="header">
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| 59 | <p>
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| 60 | Previous: <a href="auto-and-register.html" accesskey="p" rel="prev">auto and register</a>, Up: <a href="Variables.html" accesskey="u" rel="up">Variables</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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| 61 | </div>
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| 62 | <hr>
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| 63 | <span id="Omitting-Types-in-Declarations"></span><h3 class="section">20.11 Omitting Types in Declarations</h3>
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| 64 | <span id="index-omitting-types-in-declarations"></span>
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| 65 |
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| 66 | <p>The syntax of C traditionally allows omitting the data type in a
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| 67 | declaration if it specifies a storage class, a type qualifier (see the
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| 68 | next chapter), or <code>auto</code> or <code>register</code>. Then the type
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| 69 | defaults to <code>int</code>. For example:
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| 70 | </p>
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| 71 | <div class="example">
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| 72 | <pre class="example">auto foo = 42;
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| 73 | </pre></div>
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| 74 |
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| 75 | <p>This is bad practice; if you see it, fix it.
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| 76 | </p>
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| 77 |
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