symbols.html

来自「gcc手册」· HTML 代码 · 共 36 行

HTML
36 行
字号 
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Node:<a name="Symbols">Symbols</a>,

Next:<a rel="next" accesskey="n" href="Location-Counter.html#Location%20Counter">Location Counter</a>,

Previous:<a rel="previous" accesskey="p" href="Constants.html#Constants">Constants</a>,

Up:<a rel="up" accesskey="u" href="Expressions.html#Expressions">Expressions</a>

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<h4 class="subsection">Symbol Names</h4>



   <p>Unless quoted, symbol names start with a letter, underscore, or period

and may include letters, digits, underscores, periods, and hyphens. 

Unquoted symbol names must not conflict with any keywords.  You can

specify a symbol which contains odd characters or has the same name as a

keyword by surrounding the symbol name in double quotes:

<pre class="smallexample">       "SECTION" = 9;

       "with a space" = "also with a space" + 10;

     </pre>



   <p>Since symbols can contain many non-alphabetic characters, it is safest

to delimit symbols with spaces.  For example, <code>A-B</code> is one symbol,

whereas <code>A - B</code> is an expression involving subtraction.



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