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gbdk-2020/docs/api/stdlib_8h.html
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<a href="#define-members">Macros</a> &#124;
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<div class="title">stdlib.h File Reference</div> </div>
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<div class="textblock"><code>#include &lt;<a class="el" href="types_8h_source.html">types.h</a>&gt;</code><br />
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<p><a href="stdlib_8h_source.html">Go to the source code of this file.</a></p>
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Macros</h2></td></tr>
<tr class="memitem:a83798998ad669e85a8f75d6490191760"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a83798998ad669e85a8f75d6490191760">__reentrant</a></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ae43e0ef9173e48d70e3b1f99007b420c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#ae43e0ef9173e48d70e3b1f99007b420c">exit</a> (int status) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<tr class="memitem:af15d7205d8d10c4820f997ce5c526279"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#af15d7205d8d10c4820f997ce5c526279">abs</a> (int i)</td></tr>
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<tr class="memitem:a1de0f30e08cf806ce72025c63b00fba0"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a1de0f30e08cf806ce72025c63b00fba0">labs</a> (long num)</td></tr>
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<tr class="memitem:a30670a60464f77af17dfb353353d6df8"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a30670a60464f77af17dfb353353d6df8">atoi</a> (const char *s)</td></tr>
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<tr class="memitem:a531adf3b279a6966ab15cdf31d151c75"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a531adf3b279a6966ab15cdf31d151c75">itoa</a> (int n, char *s)</td></tr>
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<tr class="memitem:a4e7ad09b4f5caf8881ce5e4776fd442c"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a4e7ad09b4f5caf8881ce5e4776fd442c">utoa</a> (unsigned int n, char *s)</td></tr>
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<tr class="memitem:a10784c4be1fa220e438e0a26c2e45bb3"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a10784c4be1fa220e438e0a26c2e45bb3">ltoa</a> (long n, char *s)</td></tr>
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<tr class="memitem:a2b30ca47ee185b69e46c673a475e2f01"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a2b30ca47ee185b69e46c673a475e2f01">ultoa</a> (unsigned long n, char *s)</td></tr>
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<tr class="memitem:a62b7798461bd461da64c5f9d35feddf7"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a62b7798461bd461da64c5f9d35feddf7">calloc</a> (<a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> nmemb, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> size)</td></tr>
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<tr class="memitem:a7ac38fce3243a7dcf448301ee9ffd392"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a7ac38fce3243a7dcf448301ee9ffd392">malloc</a> (<a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> size)</td></tr>
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<tr class="memitem:a1a6b5e8d2f1c37e5b43e4345586075be"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a1a6b5e8d2f1c37e5b43e4345586075be">realloc</a> (void *ptr, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> size)</td></tr>
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<tr class="memitem:afbedc913aa4651b3c3b4b3aecd9b4711"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#afbedc913aa4651b3c3b4b3aecd9b4711">free</a> (void *ptr)</td></tr>
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<tr class="memitem:ab0ace018fe7dfa1720930d2dce0c45e3"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#ab0ace018fe7dfa1720930d2dce0c45e3">bsearch</a> (const void *key, const void *base, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> nmemb, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> size, int(*compar)(const void *, const void *) <a class="el" href="stdlib_8h.html#a83798998ad669e85a8f75d6490191760">__reentrant</a>)</td></tr>
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<tr class="memitem:a02d9d6443b9e613802b2e9c5c71caf59"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#a02d9d6443b9e613802b2e9c5c71caf59">qsort</a> (void *base, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> nmemb, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> size, int(*compar)(const void *, const void *) <a class="el" href="stdlib_8h.html#a83798998ad669e85a8f75d6490191760">__reentrant</a>)</td></tr>
<tr class="separator:a02d9d6443b9e613802b2e9c5c71caf59"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a83798998ad669e85a8f75d6490191760"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a83798998ad669e85a8f75d6490191760">&#9670;&nbsp;</a></span>__reentrant</h2>
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<td class="memname">#define __reentrant</td>
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<p>file stdlib.h 'Standard library' functions, for whatever that means. </p>
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</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="ae43e0ef9173e48d70e3b1f99007b420c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae43e0ef9173e48d70e3b1f99007b420c">&#9670;&nbsp;</a></span>exit()</h2>
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<td class="memname">void exit </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>status</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Causes normal program termination and the value of status is returned to the parent. All open streams are flushed and closed. </p>
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</div>
<a id="af15d7205d8d10c4820f997ce5c526279"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af15d7205d8d10c4820f997ce5c526279">&#9670;&nbsp;</a></span>abs()</h2>
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<td class="memname">int abs </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>i</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Returns the absolute value of int <b>i</b> </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">i</td><td>Int to obtain absolute value of</td></tr>
</table>
</dd>
</dl>
<p>If i is negative, returns -i; else returns i. </p>
</div>
</div>
<a id="a1de0f30e08cf806ce72025c63b00fba0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1de0f30e08cf806ce72025c63b00fba0">&#9670;&nbsp;</a></span>labs()</h2>
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<td class="memname">long labs </td>
<td>(</td>
<td class="paramtype">long&#160;</td>
<td class="paramname"><em>num</em></td><td>)</td>
<td></td>
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</table>
</div><div class="memdoc">
<p>Returns the absolute value of long int <b>num</b></p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">num</td><td>Long integer to obtain absolute value of </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a id="a30670a60464f77af17dfb353353d6df8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a30670a60464f77af17dfb353353d6df8">&#9670;&nbsp;</a></span>atoi()</h2>
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<td class="memname">int atoi </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Converts an ASCII string to an int</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>String to convert to an int</td></tr>
</table>
</dd>
</dl>
<p>The string may be of the format </p><div class="fragment"><div class="line">[\s]*[+-][<a class="code" href="gb_8h.html#a0a3d95ad0ab8ad213016101d2e9c3d3e">\d</a>]+[\D]*</div>
</div><!-- fragment --><p> i.e. any number of spaces, an optional + or -, then an arbitrary number of digits.</p>
<p>The result is undefined if the number doesnt fit in an int.</p>
<p>Returns: Int value of string </p>
</div>
</div>
<a id="a825c37450147a643edbcb1a435518307"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a825c37450147a643edbcb1a435518307">&#9670;&nbsp;</a></span>atol()</h2>
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<td class="memname">long atol </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s</em></td><td>)</td>
<td></td>
</tr>
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</div><div class="memdoc">
<p>Converts an ASCII string to a long. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>String to convert to an long int </td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="stdlib_8h.html#a30670a60464f77af17dfb353353d6df8">atoi()</a></dd></dl>
<p>Returns: Long int value of string </p>
</div>
</div>
<a id="a531adf3b279a6966ab15cdf31d151c75"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a531adf3b279a6966ab15cdf31d151c75">&#9670;&nbsp;</a></span>itoa()</h2>
<div class="memitem">
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<td class="memname">char* itoa </td>
<td>(</td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>n</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Converts an int into a base 10 ASCII string. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>Int to convert to a string </td></tr>
<tr><td class="paramname">s</td><td>String to store the converted number</td></tr>
</table>
</dd>
</dl>
<p>Returns: Pointer to converted string </p>
</div>
</div>
<a id="a4e7ad09b4f5caf8881ce5e4776fd442c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4e7ad09b4f5caf8881ce5e4776fd442c">&#9670;&nbsp;</a></span>utoa()</h2>
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<td class="memname">char* utoa </td>
<td>(</td>
<td class="paramtype">unsigned int&#160;</td>
<td class="paramname"><em>n</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Converts an unsigned int into a base 10 ASCII string. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>Unsigned Int to convert to a string </td></tr>
<tr><td class="paramname">s</td><td>String to store the converted number</td></tr>
</table>
</dd>
</dl>
<p>Returns: Pointer to converted string </p>
</div>
</div>
<a id="a10784c4be1fa220e438e0a26c2e45bb3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a10784c4be1fa220e438e0a26c2e45bb3">&#9670;&nbsp;</a></span>ltoa()</h2>
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<td class="memname">char* ltoa </td>
<td>(</td>
<td class="paramtype">long&#160;</td>
<td class="paramname"><em>n</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>Converts a long into a base 10 ASCII string. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>Long int to convert to a string </td></tr>
<tr><td class="paramname">s</td><td>String to store the converted number</td></tr>
</table>
</dd>
</dl>
<p>Returns: Pointer to converted string </p>
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</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a2b30ca47ee185b69e46c673a475e2f01">&#9670;&nbsp;</a></span>ultoa()</h2>
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<td class="memname">char* ultoa </td>
<td>(</td>
<td class="paramtype">unsigned long&#160;</td>
<td class="paramname"><em>n</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Converts an unsigned long into a base 10 ASCII string. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">n</td><td>Unsigned Long Int to convert to a string </td></tr>
<tr><td class="paramname">s</td><td>String to store the converted number</td></tr>
</table>
</dd>
</dl>
<p>Returns: Pointer to converted string </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a62b7798461bd461da64c5f9d35feddf7">&#9670;&nbsp;</a></span>calloc()</h2>
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<td class="memname">void* calloc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>nmemb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Memory allocation functions </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7ac38fce3243a7dcf448301ee9ffd392">&#9670;&nbsp;</a></span>malloc()</h2>
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<td class="memname">void* malloc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>size</em></td><td>)</td>
<td></td>
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</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a1a6b5e8d2f1c37e5b43e4345586075be">&#9670;&nbsp;</a></span>realloc()</h2>
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<td class="memname">void* realloc </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>ptr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<h2 class="memtitle"><span class="permalink"><a href="#afbedc913aa4651b3c3b4b3aecd9b4711">&#9670;&nbsp;</a></span>free()</h2>
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<td class="memname">void free </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>ptr</em></td><td>)</td>
<td></td>
</tr>
</table>
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</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ab0ace018fe7dfa1720930d2dce0c45e3">&#9670;&nbsp;</a></span>bsearch()</h2>
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<td class="memname">void* bsearch </td>
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<td class="paramtype">const void *&#160;</td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const void *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>nmemb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int(*)(const void *, const void *) <a class="el" href="stdlib_8h.html#a83798998ad669e85a8f75d6490191760">__reentrant</a>&#160;</td>
<td class="paramname"><em>compar</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>search a sorted array of <b>nmemb</b> items </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">key</td><td>Pointer to object that is the key for the search </td></tr>
<tr><td class="paramname">base</td><td>Pointer to first object in the array to search </td></tr>
<tr><td class="paramname">nmemb</td><td>Number of elements in the array </td></tr>
<tr><td class="paramname">size</td><td>Size in bytes of each element in the array </td></tr>
<tr><td class="paramname">compar</td><td>Function used to compare two elements of the array</td></tr>
</table>
</dd>
</dl>
<p>Returns: Pointer to array entry that matches the search key. If key is not found, NULL is returned. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a02d9d6443b9e613802b2e9c5c71caf59">&#9670;&nbsp;</a></span>qsort()</h2>
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<td class="memname">void qsort </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>base</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>nmemb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a>&#160;</td>
<td class="paramname"><em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int(*)(const void *, const void *) <a class="el" href="stdlib_8h.html#a83798998ad669e85a8f75d6490191760">__reentrant</a>&#160;</td>
<td class="paramname"><em>compar</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
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<p>Sort an array of <b>nmemb</b> items </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">base</td><td>Pointer to first object in the array to sort </td></tr>
<tr><td class="paramname">nmemb</td><td>Number of elements in the array </td></tr>
<tr><td class="paramname">size</td><td>Size in bytes of each element in the array </td></tr>
<tr><td class="paramname">compar</td><td>Function used to compare and sort two elements of the array </td></tr>
</table>
</dd>
</dl>
</div>
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<div class="ttc" id="agb_8h_html_a0a3d95ad0ab8ad213016101d2e9c3d3e"><div class="ttname"><a href="gb_8h.html#a0a3d95ad0ab8ad213016101d2e9c3d3e">d</a></div><div class="ttdeci">void d</div><div class="ttdef"><b>Definition:</b> gb.h:458</div></div>
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