140 lines
4.6 KiB
HTML
140 lines
4.6 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta name="generator" content="HTML Tidy, see www.w3.org">
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 -->
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<!-- Copyright (c) 2001 The Open Group, All Rights Reserved -->
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<title><search.h></title>
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</head>
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<body bgcolor="white">
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<script type="text/javascript" language="JavaScript" src="../jscript/codes.js">
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</script>
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<basefont size="3"> <a name="<search.h>"></a> <a name="tag_13_40"></a><!-- <search.h> -->
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<!--header start-->
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<center><font size="2">The Open Group Base Specifications Issue 6<br>
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IEEE Std 1003.1-2001<br>
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Copyright © 2001 The IEEE and The Open Group, All Rights reserved.</font></center>
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<!--header end-->
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<hr size="2" noshade>
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<h4><a name="tag_13_40_01"></a>NAME</h4>
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<blockquote>search.h - search tables</blockquote>
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<h4><a name="tag_13_40_02"></a>SYNOPSIS</h4>
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<blockquote class="synopsis">
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<div class="box"><tt><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt=
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"[Option Start]" border="0"> #include <search.h> <img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></div>
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</blockquote>
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<h4><a name="tag_13_40_03"></a>DESCRIPTION</h4>
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<blockquote>
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<p>The <i><search.h></i> header shall define the <b>ENTRY</b> type for structure <b>entry</b> which shall include the
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following members:</p>
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<pre>
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<tt>char *key
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void *data
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</tt>
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</pre>
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<p>and shall define <b>ACTION</b> and <b>VISIT</b> as enumeration data types through type definitions as follows:</p>
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<pre>
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<tt>enum { FIND, ENTER } ACTION;
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enum { preorder, postorder, endorder, leaf } VISIT;
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</tt>
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</pre>
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<p>The <b>size_t</b> type shall be defined as described in <a href="sys/types.h.html"><i><sys/types.h></i></a> .</p>
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<p>The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.</p>
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<pre>
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<tt>int hcreate(size_t);
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void hdestroy(void);
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ENTRY *hsearch(ENTRY, ACTION);
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void insque(void *, void *);
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void *lfind(const void *, const void *, size_t *,
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size_t, int (*)(const void *, const void *));
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void *lsearch(const void *, void *, size_t *,
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size_t, int (*)(const void *, const void *));
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void remque(void *);
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void *tdelete(const void *restrict, void **restrict,
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int(*)(const void *, const void *));
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void *tfind(const void *, void *const *,
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int(*)(const void *, const void *));
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void *tsearch(const void *, void **,
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int(*)(const void *, const void *));
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void twalk(const void *,
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void (*)(const void *, VISIT, int ));
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</tt>
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</pre>
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</blockquote>
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<hr>
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<div class="box"><em>The following sections are informative.</em></div>
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<h4><a name="tag_13_40_04"></a>APPLICATION USAGE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_13_40_05"></a>RATIONALE</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_13_40_06"></a>FUTURE DIRECTIONS</h4>
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<blockquote>
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<p>None.</p>
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</blockquote>
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<h4><a name="tag_13_40_07"></a>SEE ALSO</h4>
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<blockquote>
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<p><a href="sys/types.h.html"><i><sys/types.h></i></a> , the System Interfaces volume of IEEE Std 1003.1-2001, <a
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href="../functions/hcreate.html"><i>hcreate</i>()</a>, <a href="../functions/insque.html"><i>insque</i>()</a>, <a href=
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"../functions/lsearch.html"><i>lsearch</i>()</a>, <a href="../functions/remque.html"><i>remque</i>()</a>, <a href=
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"../functions/tsearch.html"><i>tsearch</i>()</a></p>
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</blockquote>
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<h4><a name="tag_13_40_08"></a>CHANGE HISTORY</h4>
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<blockquote>
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<p>First released in Issue 1. Derived from Issue 1 of the SVID.</p>
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</blockquote>
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<h4><a name="tag_13_40_09"></a>Issue 6</h4>
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<blockquote>
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<p>The Open Group Corrigendum U021/6 is applied, updating the prototypes for <a href=
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"../functions/tdelete.html"><i>tdelete</i>()</a> and <a href="../functions/tsearch.html"><i>tsearch</i>()</a>.</p>
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<p>The <b>restrict</b> keyword is added to the prototype for <a href="../functions/tdelete.html"><i>tdelete</i>()</a>.</p>
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</blockquote>
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<div class="box"><em>End of informative text.</em></div>
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<hr>
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<hr size="2" noshade>
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<center><font size="2"><!--footer start-->
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UNIX ® is a registered Trademark of The Open Group.<br>
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POSIX ® is a registered Trademark of The IEEE.<br>
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[ <a href="../mindex.html">Main Index</a> | <a href="../basedefs/contents.html">XBD</a> | <a href=
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"../utilities/contents.html">XCU</a> | <a href="../functions/contents.html">XSH</a> | <a href="../xrat/contents.html">XRAT</a>
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