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69 lines
2.7 KiB
HTML
69 lines
2.7 KiB
HTML
4 years ago
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<title>Empty Structures - Using the GNU Compiler Collection (GCC)</title>
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<meta name="description" content="Using the GNU Compiler Collection (GCC)">
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<link rel="up" href="C-Extensions.html#C-Extensions" title="C Extensions">
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<link rel="prev" href="Zero-Length.html#Zero-Length" title="Zero Length">
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<link rel="next" href="Variable-Length.html#Variable-Length" title="Variable Length">
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Copyright (C) 1988-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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</head>
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<body>
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<div class="node">
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<a name="Empty-Structures"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Variable-Length.html#Variable-Length">Variable Length</a>,
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Previous: <a rel="previous" accesskey="p" href="Zero-Length.html#Zero-Length">Zero Length</a>,
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Up: <a rel="up" accesskey="u" href="C-Extensions.html#C-Extensions">C Extensions</a>
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<hr>
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</div>
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<h3 class="section">6.18 Structures with No Members</h3>
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<p><a name="index-empty-structures-2987"></a><a name="index-zero_002dsize-structures-2988"></a>
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GCC permits a C structure to have no members:
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<pre class="smallexample"> struct empty {
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};
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</pre>
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<p>The structure has size zero. In C++, empty structures are part
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of the language. G++ treats empty structures as if they had a single
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member of type <code>char</code>.
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</body></html>
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