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<div class="headertitle"><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 />
</div>
<p><a href="stdlib_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:exit"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#exit">exit</a> (int status) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
<tr class="separator:exit"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abs"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#abs">abs</a> (int i)</td></tr>
<tr class="separator:abs"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:labs"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#labs">labs</a> (long num) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
<tr class="separator:labs"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:atoi"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#atoi">atoi</a> (const char *s)</td></tr>
<tr class="separator:atoi"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:atol"><td class="memItemLeft" align="right" valign="top">long&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#atol">atol</a> (const char *s)</td></tr>
<tr class="separator:atol"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:itoa"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#itoa">itoa</a> (int n, char *s, unsigned char radix) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
<tr class="separator:itoa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:uitoa"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#uitoa">uitoa</a> (unsigned int n, char *s, unsigned char radix) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
<tr class="separator:uitoa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ltoa"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#ltoa">ltoa</a> (long n, char *s, unsigned char radix) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
<tr class="separator:ltoa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ultoa"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#ultoa">ultoa</a> (unsigned long n, char *s, unsigned char radix) <a class="el" href="asm_2types_8h.html#OLDCALL">OLDCALL</a></td></tr>
<tr class="separator:ultoa"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:calloc"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#calloc">calloc</a> (<a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> nmemb, <a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> size)</td></tr>
<tr class="separator:calloc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:malloc"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#malloc">malloc</a> (<a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> size)</td></tr>
<tr class="separator:malloc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:realloc"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#realloc">realloc</a> (void *ptr, <a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> size)</td></tr>
<tr class="separator:realloc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:free"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#free">free</a> (void *ptr)</td></tr>
<tr class="separator:free"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:bsearch"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#bsearch">bsearch</a> (const void *key, const void *base, <a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> nmemb, <a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> size, int(*compar)(const void *, const void *) REENTRANT)</td></tr>
<tr class="separator:bsearch"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:qsort"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdlib_8h.html#qsort">qsort</a> (void *base, <a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> nmemb, <a class="el" href="asm_2mos6502_2types_8h.html#size_t">size_t</a> size, int(*compar)(const void *, const void *) REENTRANT)</td></tr>
<tr class="separator:qsort"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<h2 class="groupheader">Function Documentation</h2>
<a id="exit" name="exit"></a>
<h2 class="memtitle"><span class="permalink"><a href="#exit">&#9670;&nbsp;</a></span>exit()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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 >file stdlib.h 'Standard library' functions, for whatever that means. Causes normal program termination and the value of status is returned to the parent. All open streams are flushed and closed. </p>
</div>
</div>
<a id="abs" name="abs"></a>
<h2 class="memtitle"><span class="permalink"><a href="#abs">&#9670;&nbsp;</a></span>abs()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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="labs" name="labs"></a>
<h2 class="memtitle"><span class="permalink"><a href="#labs">&#9670;&nbsp;</a></span>labs()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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>
</tr>
</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="atoi" name="atoi"></a>
<h2 class="memtitle"><span class="permalink"><a href="#atoi">&#9670;&nbsp;</a></span>atoi()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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 hl_variable" href="gb_8h.html#d">\d</a>]+[\D]*</div>
<div class="ttc" id="agb_8h_html_d"><div class="ttname"><a href="gb_8h.html#d">d</a></div><div class="ttdeci">uint8_t d</div><div class="ttdef"><b>Definition:</b> gb.h:419</div></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="atol" name="atol"></a>
<h2 class="memtitle"><span class="permalink"><a href="#atol">&#9670;&nbsp;</a></span>atol()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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>
</table>
</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#atoi">atoi()</a></dd></dl>
<p>Returns: Long int value of string </p>
</div>
</div>
<a id="itoa" name="itoa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#itoa">&#9670;&nbsp;</a></span>itoa()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char&#160;</td>
<td class="paramname"><em>radix</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<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>
<tr><td class="paramname">radix</td><td>Numerical base for converted number, ex: 10 is decimal base (parameter is required but not utilized on Game Boy and Analogue Pocket)</td></tr>
</table>
</dd>
</dl>
<p>Can be used with <a class="el" href="gb_8h.html#set_bkg_based_tiles">set_bkg_based_tiles()</a> for printing if the digit character tiles are not ascii-mapped.</p>
<p >Returns: Pointer to converted string </p>
</div>
</div>
<a id="uitoa" name="uitoa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#uitoa">&#9670;&nbsp;</a></span>uitoa()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char * uitoa </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>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char&#160;</td>
<td class="paramname"><em>radix</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<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>
<tr><td class="paramname">radix</td><td>Numerical base for converted number, ex: 10 is decimal base (parameter is required but not utilized on Game Boy and Analogue Pocket)</td></tr>
</table>
</dd>
</dl>
<p>Can be used with <a class="el" href="gb_8h.html#set_bkg_based_tiles">set_bkg_based_tiles()</a> for printing if the digit character tiles are not ascii-mapped.</p>
<p >Returns: Pointer to converted string </p>
</div>
</div>
<a id="ltoa" name="ltoa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ltoa">&#9670;&nbsp;</a></span>ltoa()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char * ltoa </td>
<td>(</td>
<td class="paramtype">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>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char&#160;</td>
<td class="paramname"><em>radix</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<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>
<tr><td class="paramname">radix</td><td>Numerical base for converted number, ex: 10 is decimal base (parameter is required but not utilized on Game Boy and Analogue Pocket)</td></tr>
</table>
</dd>
</dl>
<p>Can be used with <a class="el" href="gb_8h.html#set_bkg_based_tiles">set_bkg_based_tiles()</a> for printing if the digit character tiles are not ascii-mapped.</p>
<p >Returns: Pointer to converted string </p>
</div>
</div>
<a id="ultoa" name="ultoa"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ultoa">&#9670;&nbsp;</a></span>ultoa()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<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>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned char&#160;</td>
<td class="paramname"><em>radix</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<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>
<tr><td class="paramname">radix</td><td>Numerical base for converted number, ex: 10 is decimal base (parameter is required but not utilized on Game Boy and Analogue Pocket)</td></tr>
</table>
</dd>
</dl>
<p>Can be used with <a class="el" href="gb_8h.html#set_bkg_based_tiles">set_bkg_based_tiles()</a> for printing if the digit character tiles are not ascii-mapped.</p>
<p >Returns: Pointer to converted string </p>
</div>
</div>
<a id="calloc" name="calloc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#calloc">&#9670;&nbsp;</a></span>calloc()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void * calloc </td>
<td>(</td>
<td class="paramtype"><a class="el" href="asm_2mos6502_2types_8h.html#size_t">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_2mos6502_2types_8h.html#size_t">size_t</a>&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
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<p >Memory allocation functions </p>
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<a id="malloc" name="malloc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#malloc">&#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_2mos6502_2types_8h.html#size_t">size_t</a>&#160;</td>
<td class="paramname"><em>size</em></td><td>)</td>
<td></td>
</tr>
</table>
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</div>
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<a id="realloc" name="realloc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#realloc">&#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_2mos6502_2types_8h.html#size_t">size_t</a>&#160;</td>
<td class="paramname"><em>size</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<a id="free" name="free"></a>
<h2 class="memtitle"><span class="permalink"><a href="#free">&#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>
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</table>
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<a id="bsearch" name="bsearch"></a>
<h2 class="memtitle"><span class="permalink"><a href="#bsearch">&#9670;&nbsp;</a></span>bsearch()</h2>
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<div class="memproto">
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<td class="memname">void * bsearch </td>
<td>(</td>
<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_2mos6502_2types_8h.html#size_t">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_2mos6502_2types_8h.html#size_t">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 *) REENTRANT&#160;</td>
<td class="paramname"><em>compar</em>&#160;</td>
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<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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<a id="qsort" name="qsort"></a>
<h2 class="memtitle"><span class="permalink"><a href="#qsort">&#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_2mos6502_2types_8h.html#size_t">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_2mos6502_2types_8h.html#size_t">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 *) REENTRANT&#160;</td>
<td class="paramname"><em>compar</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</div><div class="memdoc">
<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>
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