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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="string_8h_source.html">Go to the source code of this file.</a></p>
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Functions</h2></td></tr>
<tr class="memitem:a42d5c9b335c67653294ab15e803ae1d4"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#a42d5c9b335c67653294ab15e803ae1d4">strcpy</a> (char *dest, const char *src) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<tr class="memitem:aad5113065159a016224b5046a7704e3a"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#aad5113065159a016224b5046a7704e3a">strcmp</a> (const char *s1, const char *s2) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<tr class="memitem:a537a4371a9860b6fe9bd6e7d0df73fa5"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#a537a4371a9860b6fe9bd6e7d0df73fa5">memcpy</a> (void *dest, const void *src, <a class="el" href="asm_2gbz80_2types_8h.html#a7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> len) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<tr class="memitem:af0863b31e4ef29647e8181e60c9bd55e"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#af0863b31e4ef29647e8181e60c9bd55e">reverse</a> (char *s)</td></tr>
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<tr class="memitem:a13c88f5a8475fd7de5d81553cb29724a"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#a13c88f5a8475fd7de5d81553cb29724a">strcat</a> (char *s1, const char *s2) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<tr class="memitem:acdb04aa44dd4014b313a88d2aa7db89d"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#acdb04aa44dd4014b313a88d2aa7db89d">strlen</a> (const char *s) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<tr class="memitem:a796a9459c4f362e51c00307044c40ed5"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="string_8h.html#a796a9459c4f362e51c00307044c40ed5">strncpy</a> (char *s1, const char *s2, int n) <a class="el" href="asm_2gbz80_2types_8h.html#a7ed081d8dfb6902784b2fc730bbb7f96">NONBANKED</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Generic string functions. </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a42d5c9b335c67653294ab15e803ae1d4"></a>
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<td class="memname">char* strcpy </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>dest</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>src</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Copies the string pointed to by <b>src</b> (including the terminating `\0' character) to the array pointed to by <b>dest</b>.</p>
<p>The strings may not overlap, and the destination string dest must be large enough to receive the copy.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dest</td><td>Array to copy into </td></tr>
<tr><td class="paramname">src</td><td>Array to copy from</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A pointer to dest </dd></dl>
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</div>
<a class="anchor" id="aad5113065159a016224b5046a7704e3a"></a>
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int strcmp </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s1</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s2</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>Compares strings</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s1</td><td>First string to compare </td></tr>
<tr><td class="paramname">s2</td><td>Second string to compare</td></tr>
</table>
</dd>
</dl>
<p>Returns: </p><ul>
<li>&gt; 0 if <b>s1</b> &gt; <b>s2</b> </li>
<li>0 if <b>s1</b> == <b>s2</b> </li>
<li>&lt; 0 if <b>s1</b> &lt; <b>s2</b> </li>
</ul>
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</div>
<a class="anchor" id="a537a4371a9860b6fe9bd6e7d0df73fa5"></a>
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<td class="memname">void* memcpy </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>dest</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const void *&#160;</td>
<td class="paramname"><em>src</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>len</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Copies n bytes from memory area src to memory area dest.</p>
<p>The memory areas may not overlap.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">dest</td><td>Buffer to copy into </td></tr>
<tr><td class="paramname">src</td><td>Buffer to copy from </td></tr>
<tr><td class="paramname">len</td><td>Number of Bytes to copy </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ace6ee45c30e71865e6eb635200379db9"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void* memset </td>
<td>(</td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>s</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>c</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>n</em>&#160;</td>
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<td></td>
<td>)</td>
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<p>Fills the memory region <b>s</b> with <b>n</b> bytes using value <b>c</b></p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>Buffer to fill </td></tr>
<tr><td class="paramname">c</td><td>char value to fill with (truncated from int) </td></tr>
<tr><td class="paramname">n</td><td>Number of bytes to fill </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="af0863b31e4ef29647e8181e60c9bd55e"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char* reverse </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Reverses the characters in a string</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>Pointer to string to reverse.</td></tr>
</table>
</dd>
</dl>
<p>For example 'abcdefg' will become 'gfedcba'.</p>
<p>Banked as the string must be modifiable.</p>
<p>Returns: Pointer to <b>s</b> </p>
</div>
</div>
<a class="anchor" id="a13c88f5a8475fd7de5d81553cb29724a"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">char* strcat </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s1</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s2</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Concatenate Strings. Appends string <b>s2</b> to the end of string <b>s1</b></p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s1</td><td>String to append onto </td></tr>
<tr><td class="paramname">s2</td><td>String to copy from</td></tr>
</table>
</dd>
</dl>
<p>For example 'abc' and 'def' will become 'abcdef'.</p>
<p>String <b>s1</b> must be large enough to store both <b>s1</b> and <b>s2</b>.</p>
<p>Returns: Pointer to <b>s1</b> </p>
</div>
</div>
<a class="anchor" id="acdb04aa44dd4014b313a88d2aa7db89d"></a>
<div class="memitem">
<div class="memproto">
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<td class="memname">int strlen </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>Calculates the length of a string</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>String to calculate length of</td></tr>
</table>
</dd>
</dl>
<p>Returns: Length of string not including the terminating `\0' character. </p>
</div>
</div>
<a class="anchor" id="a168580a0ddcb7fe754a711309966c99d"></a>
<div class="memitem">
<div class="memproto">
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<tr>
<td class="memname">char* strncat </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s1</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s2</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>n</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Concatenate at most <b>n</b> characters from string <b>s2</b> onto the end of <b>s1</b>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s1</td><td>String to append onto </td></tr>
<tr><td class="paramname">s2</td><td>String to copy from </td></tr>
<tr><td class="paramname">n</td><td>Max number of characters to copy from <b>s2</b></td></tr>
</table>
</dd>
</dl>
<p>String <b>s1</b> must be large enough to store both <b>s1</b> and <b>n</b> characters of <b>s2</b></p>
<p>Returns: Pointer to <b>s1</b> </p>
</div>
</div>
<a class="anchor" id="a861dba2d93de82f087707bb795f5c602"></a>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int strncmp </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s1</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s2</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>n</em>&#160;</td>
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<td>)</td>
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<p>Compare strings (at most n characters):</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s1</td><td>First string to compare </td></tr>
<tr><td class="paramname">s2</td><td>Second string to compare </td></tr>
<tr><td class="paramname">n</td><td>Max number of characters to compare</td></tr>
</table>
</dd>
</dl>
<p>Returns: </p><ul>
<li>&gt; 0 if <b>s1</b> &gt; <b>s2</b> </li>
<li>0 if <b>s1</b> == <b>s2</b> </li>
<li>&lt; 0 if <b>s1</b> &lt; <b>s2</b> </li>
</ul>
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<td class="memname">char* strncpy </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>s1</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>s2</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>n</em>&#160;</td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Copy <b>n</b> characters from string <b>s2</b> to <b>s1</b></p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s1</td><td>String to copy into </td></tr>
<tr><td class="paramname">s2</td><td>String to copy from </td></tr>
<tr><td class="paramname">n</td><td>Max number of characters to copy from <b>s2</b></td></tr>
</table>
</dd>
</dl>
<p>If <b>s2</b> is shorter than <b>n</b>, the remaining bytes in <b>s1</b> are filled with \0.</p>
<p>Warning: If there is no \0 in the first <b>n</b> bytes of <b>s2</b> then <b>s1</b> will not be null terminated.</p>
<p>Returns: Pointer to <b>s1</b> </p>
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