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		<title>C Tutorial/Preprocessor/define - История изменений</title>
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		<updated>2026-04-11T09:53:09Z</updated>
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		<id>http://cppe.ru/index.php?title=C_Tutorial/Preprocessor/define&amp;diff=3166&amp;oldid=prev</id>
		<title> в 14:21, 25 мая 2010</title>
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				<updated>2010-05-25T14:21:19Z</updated>
		
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		<id>http://cppe.ru/index.php?title=C_Tutorial/Preprocessor/define&amp;diff=3167&amp;oldid=prev</id>
		<title>Admin: 1 версия:&amp;#32;Импорт контента...</title>
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				<updated>2010-05-25T10:31:59Z</updated>
		
		<summary type="html">&lt;p&gt;1 версия: Импорт контента...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Use #define to define constant==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;#include &amp;lt;stdio.h&amp;gt;&lt;br /&gt;
#define TRUE           1&lt;br /&gt;
#define FALSE          0&lt;br /&gt;
#define BS             &amp;quot;\b&amp;quot;&lt;br /&gt;
#define TAB            &amp;quot;\011&amp;quot;&lt;br /&gt;
main(){&lt;br /&gt;
   printf(&amp;quot;%d&amp;quot;,TRUE);&lt;br /&gt;
   printf(&amp;quot;%d&amp;quot;,FALSE);&lt;br /&gt;
   printf(&amp;quot;%c&amp;quot;,BS);&lt;br /&gt;
   printf(&amp;quot;%d&amp;quot;,TAB);&lt;br /&gt;
}&amp;lt;/source&amp;gt;&lt;br /&gt;
&amp;lt;pre class=codeResult&amp;gt;19&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Use preprocessor to define integer and string==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;cpp&amp;quot;&amp;gt;#include &amp;lt;stdio.h&amp;gt;&lt;br /&gt;
#define VAL 35&lt;br /&gt;
#define HELLO &amp;quot;HELLO&amp;quot;&lt;br /&gt;
main ()&lt;br /&gt;
{&lt;br /&gt;
    int res;&lt;br /&gt;
    res = VAL-5;&lt;br /&gt;
    printf (&amp;quot;res = VAL-5: res == %d\n&amp;quot;, res);&lt;br /&gt;
    printf (&amp;quot;%s&amp;quot;,HELLO);&lt;br /&gt;
}&amp;lt;/source&amp;gt;&lt;br /&gt;
&amp;lt;pre class=codeResult&amp;gt;res = VAL-5: res == 30&lt;br /&gt;
      HELLO&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>	</entry>

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