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75 lines
3.2 KiB
HTML
75 lines
3.2 KiB
HTML
4 years ago
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<title>Predefined Macros - The C Preprocessor</title>
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<meta name="description" content="The C Preprocessor">
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<meta name="generator" content="makeinfo 4.13">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Macros.html#Macros" title="Macros">
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<link rel="prev" href="Variadic-Macros.html#Variadic-Macros" title="Variadic Macros">
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<link rel="next" href="Undefining-and-Redefining-Macros.html#Undefining-and-Redefining-Macros" title="Undefining and Redefining Macros">
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Copyright (C) 1987-2015 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation. A copy of
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the license is included in the
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section entitled ``GNU Free Documentation License''.
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This manual contains no Invariant Sections. The Front-Cover Texts are
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(a) (see below), and the Back-Cover Texts are (b) (see below).
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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</head>
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<body>
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<div class="node">
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<a name="Predefined-Macros"></a>
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<p>
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Next: <a rel="next" accesskey="n" href="Undefining-and-Redefining-Macros.html#Undefining-and-Redefining-Macros">Undefining and Redefining Macros</a>,
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Previous: <a rel="previous" accesskey="p" href="Variadic-Macros.html#Variadic-Macros">Variadic Macros</a>,
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Up: <a rel="up" accesskey="u" href="Macros.html#Macros">Macros</a>
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<hr>
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</div>
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<h3 class="section">3.7 Predefined Macros</h3>
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<p><a name="index-predefined-macros-59"></a>Several object-like macros are predefined; you use them without
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supplying their definitions. They fall into three classes: standard,
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common, and system-specific.
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<p>In C++, there is a fourth category, the named operators. They act like
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predefined macros, but you cannot undefine them.
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<ul class="menu">
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<li><a accesskey="1" href="Standard-Predefined-Macros.html#Standard-Predefined-Macros">Standard Predefined Macros</a>
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<li><a accesskey="2" href="Common-Predefined-Macros.html#Common-Predefined-Macros">Common Predefined Macros</a>
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<li><a accesskey="3" href="System_002dspecific-Predefined-Macros.html#System_002dspecific-Predefined-Macros">System-specific Predefined Macros</a>
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<li><a accesskey="4" href="C_002b_002b-Named-Operators.html#C_002b_002b-Named-Operators">C++ Named Operators</a>
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</ul>
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</body></html>
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