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gbdk-2020/docs/api/stdio_8h.html
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&#160;<span id="projectnumber">4.3.0</span>
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<div id="projectbrief">API Documentation for GBDK 2020</div>
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<a href="#func-members">Functions</a> </div>
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<div class="title">stdio.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="stdio_8h_source.html">Go to the source code of this file.</a></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:aab41487f7727cf7eb7377f9b8f494c58"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdio_8h.html#aab41487f7727cf7eb7377f9b8f494c58">putchar</a> (char <a class="el" href="sms_8h.html#a0b3366755f3276b0243c1e0497471b7a">c</a>) <a class="el" href="asm_2types_8h.html#a0971918860055db2e50dacea4da8f3bc">OLDCALL</a> REENTRANT</td></tr>
<tr class="separator:aab41487f7727cf7eb7377f9b8f494c58"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a133c04c35a1c14c6f8d8078831705661"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdio_8h.html#a133c04c35a1c14c6f8d8078831705661">printf</a> (const char *format,...)</td></tr>
<tr class="separator:a133c04c35a1c14c6f8d8078831705661"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a440c82287022737c4f2866786ba8a154"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdio_8h.html#a440c82287022737c4f2866786ba8a154">sprintf</a> (char *str, const char *format,...)</td></tr>
<tr class="separator:a440c82287022737c4f2866786ba8a154"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a299d0f9cb9e7b14e1278a4ed21e4d76f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdio_8h.html#a299d0f9cb9e7b14e1278a4ed21e4d76f">puts</a> (const char *s)</td></tr>
<tr class="separator:a299d0f9cb9e7b14e1278a4ed21e4d76f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a00a5b27bc2e5280952b02c304d7b27bc"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdio_8h.html#a00a5b27bc2e5280952b02c304d7b27bc">gets</a> (char *s) <a class="el" href="asm_2types_8h.html#a0971918860055db2e50dacea4da8f3bc">OLDCALL</a></td></tr>
<tr class="separator:a00a5b27bc2e5280952b02c304d7b27bc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a59f236a67cfbffee7aff0c369bcf3f2b"><td class="memItemLeft" align="right" valign="top">char&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="stdio_8h.html#a59f236a67cfbffee7aff0c369bcf3f2b">getchar</a> (void) <a class="el" href="asm_2types_8h.html#a0971918860055db2e50dacea4da8f3bc">OLDCALL</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Basic file/console input output functions.</p>
<p>Including stdio.h will use a large number of the background tiles for font characters. If stdio.h is not included then that space will be available for use with other tiles instead. </p>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="aab41487f7727cf7eb7377f9b8f494c58"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aab41487f7727cf7eb7377f9b8f494c58">&#9670;&nbsp;</a></span>putchar()</h2>
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<td class="memname">void putchar </td>
<td>(</td>
<td class="paramtype">char&#160;</td>
<td class="paramname"><em>c</em></td><td>)</td>
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<p>Print char to stdout. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">c</td><td>Character to print </td></tr>
</table>
</dd>
</dl>
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<a id="a133c04c35a1c14c6f8d8078831705661"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a133c04c35a1c14c6f8d8078831705661">&#9670;&nbsp;</a></span>printf()</h2>
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<td class="memname">void printf </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>format</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">&#160;</td>
<td class="paramname"><em>...</em>&#160;</td>
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<td>)</td>
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<p>Print the string and arguments given by format to stdout.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">format</td><td>The format string as per printf</td></tr>
</table>
</dd>
</dl>
<p>Does not return the number of characters printed.</p>
<p>Currently supported: </p><ul>
<li>%hx (char as hex) </li>
<li>%hu (unsigned char) </li>
<li>%hd (signed char) </li>
<li>%c (character) </li>
<li>%u (unsigned int) </li>
<li>%d (signed int) </li>
<li>%x (unsigned int as hex) </li>
<li>%s (string)</li>
</ul>
<p>Warning: to correctly pass parameters (such as chars, ints, etc) <b>all of them should always be explicitly cast</b> as when calling the function. See <a class="el" href="docs_coding_guidelines.html#docs_chars_varargs">docs_chars_varargs</a> for more details. </p>
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<a id="a440c82287022737c4f2866786ba8a154"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a440c82287022737c4f2866786ba8a154">&#9670;&nbsp;</a></span>sprintf()</h2>
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<td class="memname">void sprintf </td>
<td>(</td>
<td class="paramtype">char *&#160;</td>
<td class="paramname"><em>str</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>format</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">&#160;</td>
<td class="paramname"><em>...</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Print the string and arguments given by format to a buffer.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>The buffer to print into </td></tr>
<tr><td class="paramname">format</td><td>The format string as per <a class="el" href="stdio_8h.html#a133c04c35a1c14c6f8d8078831705661">printf</a></td></tr>
</table>
</dd>
</dl>
<p>Does not return the number of characters printed.</p>
<p>Warning: to correctly pass parameters (such as chars, ints, etc) <b>all of them should always be explicitly cast</b> as when calling the function. See <a class="el" href="docs_coding_guidelines.html#docs_chars_varargs">docs_chars_varargs</a> for more details. </p>
</div>
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<a id="a299d0f9cb9e7b14e1278a4ed21e4d76f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a299d0f9cb9e7b14e1278a4ed21e4d76f">&#9670;&nbsp;</a></span>puts()</h2>
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<td class="memname">void puts </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><a class="el" href="stdio_8h.html#a299d0f9cb9e7b14e1278a4ed21e4d76f">puts()</a> writes the string <b>s</b> and a trailing newline to stdout. </p>
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<a id="a00a5b27bc2e5280952b02c304d7b27bc"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a00a5b27bc2e5280952b02c304d7b27bc">&#9670;&nbsp;</a></span>gets()</h2>
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<td class="memname">char* gets </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><a class="el" href="stdio_8h.html#a00a5b27bc2e5280952b02c304d7b27bc">gets()</a> Reads a line from stdin into a buffer pointed to by <b>s</b>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">s</td><td>Buffer to store string in</td></tr>
</table>
</dd>
</dl>
<p>Reads until either a terminating newline or an EOF, which it replaces with '\0'. No check for buffer overrun is performed.</p>
<p>Returns: Buffer pointed to by <b>s</b> </p>
</div>
</div>
<a id="a59f236a67cfbffee7aff0c369bcf3f2b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a59f236a67cfbffee7aff0c369bcf3f2b">&#9670;&nbsp;</a></span>getchar()</h2>
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<td class="memname">char getchar </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
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<p><a class="el" href="stdio_8h.html#a59f236a67cfbffee7aff0c369bcf3f2b">getchar()</a> Reads and returns a single character from stdin. </p>
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