arduino-0018-windows
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<html lang="en">
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<head>
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<title>Symbols - Untitled</title>
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Expressions.html#Expressions" title="Expressions">
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<link rel="prev" href="Constants.html#Constants" title="Constants">
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<link rel="next" href="Orphan-Sections.html#Orphan-Sections" title="Orphan Sections">
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<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
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<!--
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This file documents the GNU linker LD
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(GNU Binutils)
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version 2.19.
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Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000,
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2001, 2002, 2003, 2004, 2005, 2006, 2007 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 1.1
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or any later version published by the Free Software Foundation;
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<style type="text/css"><!--
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--></style>
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</head>
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<body>
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<div class="node">
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<p>
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<a name="Symbols"></a>Next: <a rel="next" accesskey="n" href="Orphan-Sections.html#Orphan-Sections">Orphan Sections</a>,
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Previous: <a rel="previous" accesskey="p" href="Constants.html#Constants">Constants</a>,
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Up: <a rel="up" accesskey="u" href="Expressions.html#Expressions">Expressions</a>
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<hr><br>
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</div>
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<h4 class="subsection">3.10.2 Symbol Names</h4>
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<p><a name="index-symbol-names-463"></a><a name="index-names-464"></a><a name="index-quoted-symbol-names-465"></a><a name="index-_0022-466"></a>Unless quoted, symbol names start with a letter, underscore, or period
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and may include letters, digits, underscores, periods, and hyphens.
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Unquoted symbol names must not conflict with any keywords. You can
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specify a symbol which contains odd characters or has the same name as a
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keyword by surrounding the symbol name in double quotes:
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<pre class="smallexample"> "SECTION" = 9;
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"with a space" = "also with a space" + 10;
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</pre>
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<p>Since symbols can contain many non-alphabetic characters, it is safest
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to delimit symbols with spaces. For example, <span class="samp">A-B</span> is one symbol,
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whereas <span class="samp">A - B</span> is an expression involving subtraction.
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</body></html>
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