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	<title>Source:NetHack 1.4f/rnd.c - Revision history</title>
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	<updated>2026-06-04T04:45:02Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.32.5</generator>
	<entry>
		<id>https://nethackwiki.com/index.php?title=Source:NetHack_1.4f/rnd.c&amp;diff=173553&amp;oldid=prev</id>
		<title>Furey: Delete link-to-particular-source instructions. Source code covers that now. &quot;the latest release&quot; -&gt; &quot;newer releases&quot;.</title>
		<link rel="alternate" type="text/html" href="https://nethackwiki.com/index.php?title=Source:NetHack_1.4f/rnd.c&amp;diff=173553&amp;oldid=prev"/>
		<updated>2024-07-02T00:07:45Z</updated>

		<summary type="html">&lt;p&gt;Delete link-to-particular-source instructions. &lt;a href=&quot;/wiki/Source_code&quot; class=&quot;mw-redirect&quot; title=&quot;Source code&quot;&gt;Source code&lt;/a&gt; covers that now. &amp;quot;the latest release&amp;quot; -&amp;gt; &amp;quot;newer releases&amp;quot;.&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 00:07, 2 July 2024&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot; &gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Below is the full text to '''rnd.c''' from the [[NetHack 1.4f source code|source code]] of [[NetHack 1.4f]]&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;. To link to a particular line, write [[NetHack 1.4f/rnd.c#line123|&amp;lt;nowiki&amp;gt;[[NetHack 1.4f/rnd.c#line123]]&amp;lt;/nowiki&amp;gt;]], for example&lt;/del&gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Below is the full text to '''rnd.c''' from the [[NetHack 1.4f source code|source code]] of [[NetHack 1.4f]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Warning!''' This is the source code from an old release. For &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;the latest release&lt;/del&gt;, see [[Source code]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;'''Warning!''' This is the source code from an old release. For &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;newer releases&lt;/ins&gt;, see [[Source code]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{CWI}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{CWI}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Furey</name></author>
		
	</entry>
	<entry>
		<id>https://nethackwiki.com/index.php?title=Source:NetHack_1.4f/rnd.c&amp;diff=27335&amp;oldid=prev</id>
		<title>Kernigh bot: NetHack 1.4f/rnd.c moved to Source:NetHack 1.4f/rnd.c: Robot: moved page</title>
		<link rel="alternate" type="text/html" href="https://nethackwiki.com/index.php?title=Source:NetHack_1.4f/rnd.c&amp;diff=27335&amp;oldid=prev"/>
		<updated>2008-03-04T01:31:23Z</updated>

		<summary type="html">&lt;p&gt;&lt;a href=&quot;/index.php?title=NetHack_1.4f/rnd.c&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;NetHack 1.4f/rnd.c (page does not exist)&quot;&gt;NetHack 1.4f/rnd.c&lt;/a&gt; moved to &lt;a href=&quot;/wiki/Source:NetHack_1.4f/rnd.c&quot; title=&quot;Source:NetHack 1.4f/rnd.c&quot;&gt;Source:NetHack 1.4f/rnd.c&lt;/a&gt;: Robot: moved page&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 01:31, 4 March 2008&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;en&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(No difference)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Kernigh bot</name></author>
		
	</entry>
	<entry>
		<id>https://nethackwiki.com/index.php?title=Source:NetHack_1.4f/rnd.c&amp;diff=9265&amp;oldid=prev</id>
		<title>Jaytbot: Automated source code upload</title>
		<link rel="alternate" type="text/html" href="https://nethackwiki.com/index.php?title=Source:NetHack_1.4f/rnd.c&amp;diff=9265&amp;oldid=prev"/>
		<updated>2006-08-31T15:42:42Z</updated>

		<summary type="html">&lt;p&gt;Automated source code upload&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Below is the full text to '''rnd.c''' from the [[NetHack 1.4f source code|source code]] of [[NetHack 1.4f]]. To link to a particular line, write [[NetHack 1.4f/rnd.c#line123|&amp;lt;nowiki&amp;gt;[[NetHack 1.4f/rnd.c#line123]]&amp;lt;/nowiki&amp;gt;]], for example.&lt;br /&gt;
&lt;br /&gt;
'''Warning!''' This is the source code from an old release. For the latest release, see [[Source code]]&lt;br /&gt;
&lt;br /&gt;
{{CWI}}&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line1&amp;quot;&amp;gt;1.    /*	SCCS Id: @(#)rnd.c	1.4	87/08/08&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line2&amp;quot;&amp;gt;2.    /* rnd.c - version 1.0.2 */&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line3&amp;quot;&amp;gt;3.    &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line4&amp;quot;&amp;gt;4.    #define RND(x)	((rand()&amp;gt;&amp;gt;3) % x)&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line5&amp;quot;&amp;gt;5.    &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line6&amp;quot;&amp;gt;6.    rn1(x,y)	/* y &amp;lt;= rn1(x,y) &amp;lt; (y+x) */ &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line7&amp;quot;&amp;gt;7.    register x,y;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line8&amp;quot;&amp;gt;8.    {&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line9&amp;quot;&amp;gt;9.    	return(RND(x)+y);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line10&amp;quot;&amp;gt;10.   }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line11&amp;quot;&amp;gt;11.   &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line12&amp;quot;&amp;gt;12.   rn2(x)		/* 0 &amp;lt;= rn2(x) &amp;lt; x */&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line13&amp;quot;&amp;gt;13.   register x;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line14&amp;quot;&amp;gt;14.   {&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line15&amp;quot;&amp;gt;15.   	return(RND(x));&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line16&amp;quot;&amp;gt;16.   }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line17&amp;quot;&amp;gt;17.   &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line18&amp;quot;&amp;gt;18.   rnd(x)		/* 1 &amp;lt;= rnd(x) &amp;lt;= x */&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line19&amp;quot;&amp;gt;19.   register x;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line20&amp;quot;&amp;gt;20.   {&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line21&amp;quot;&amp;gt;21.   	return(RND(x)+1);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line22&amp;quot;&amp;gt;22.   }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line23&amp;quot;&amp;gt;23.   &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line24&amp;quot;&amp;gt;24.   d(n,x)		/* n &amp;lt;= d(n,x) &amp;lt;= (n*x) */&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line25&amp;quot;&amp;gt;25.   register n,x;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line26&amp;quot;&amp;gt;26.   {&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line27&amp;quot;&amp;gt;27.   	register tmp = n;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line28&amp;quot;&amp;gt;28.   &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line29&amp;quot;&amp;gt;29.   	while(n--) tmp += RND(x);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line30&amp;quot;&amp;gt;30.   	return(tmp);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line31&amp;quot;&amp;gt;31.   }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line32&amp;quot;&amp;gt;32.   &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line33&amp;quot;&amp;gt;33.   rne(x)          /* by stewr 870807 */&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line34&amp;quot;&amp;gt;34.   register x;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line35&amp;quot;&amp;gt;35.   {&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line36&amp;quot;&amp;gt;36.           register tmp = 1;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line37&amp;quot;&amp;gt;37.   	while(!rn2(x)) tmp++;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line38&amp;quot;&amp;gt;38.   	return(tmp);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line39&amp;quot;&amp;gt;39.   }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line40&amp;quot;&amp;gt;40.   &amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line41&amp;quot;&amp;gt;41.   rnz(x)&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line42&amp;quot;&amp;gt;42.   register x;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line43&amp;quot;&amp;gt;43.   {&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line44&amp;quot;&amp;gt;44.           register tmp = 1000;&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line45&amp;quot;&amp;gt;45.   	tmp += rn2(1000);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line46&amp;quot;&amp;gt;46.   	tmp *= rne(4);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line47&amp;quot;&amp;gt;47.   	if (rn2(2)) { x *= tmp; x /= 1000; }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line48&amp;quot;&amp;gt;48.   	else { x *= 1000; x /= tmp; }&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line49&amp;quot;&amp;gt;49.   	return(x);&amp;lt;/span&amp;gt;&lt;br /&gt;
 &amp;lt;span id=&amp;quot;line50&amp;quot;&amp;gt;50.   }&amp;lt;/span&amp;gt;&lt;br /&gt;
[[Category:NetHack 1.4f source code|rnd.c]]&lt;/div&gt;</summary>
		<author><name>Jaytbot</name></author>
		
	</entry>
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