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<tr class="t-nv"><td colspan="5"> <a href="../error.html" title="c/error"> Error handling</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../program.html" title="c/program"> Program utilities</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../variadic.html" title="c/variadic"> Variadic function support</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../chrono.html" title="c/chrono"> Date and time utilities</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../string.html" title="c/string"> Strings library</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../algorithm.html" title="c/algorithm"> Algorithms</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../numeric.html" title="c/numeric"> Numerics</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../io.html" title="c/io"> Input/output support</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../locale.html" title="c/locale"> Localization support</a> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../thread.html" title="c/thread"> Thread support</a> <span class="t-mark-rev t-since-c11">(C11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"> <a href="../atomic.html" title="c/atomic"> Atomic operations</a> <span class="t-mark-rev t-since-c11">(C11)</span> </td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="../experimental.html" title="c/experimental"><span class="t-lines"><span>Technical Specifications</span></span></a></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:c/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><a href="../io.html" title="c/io"> File input/output</a><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h1"><td colspan="5"> Functions</td></tr>
<tr class="t-nv-h2"><td colspan="5"> File access</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fopen.html" title="c/io/fopen"><span class="t-lines"><span>fopen</span><span>fopen_s</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="freopen.html" title="c/io/freopen"><span class="t-lines"><span>freopen</span><span>freopen_s</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fwide.html" title="c/io/fwide"><span class="t-lines"><span>fwide</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="setbuf.html" title="c/io/setbuf"><span class="t-lines"><span>setbuf</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="setvbuf.html" title="c/io/setvbuf"><span class="t-lines"><span>setvbuf</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fclose.html" title="c/io/fclose"><span class="t-lines"><span>fclose</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fflush.html" title="c/io/fflush"><span class="t-lines"><span>fflush</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Direct input/output</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fread.html" title="c/io/fread"><span class="t-lines"><span>fread</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fwrite.html" title="c/io/fwrite"><span class="t-lines"><span>fwrite</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Unformatted input/output</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fgetc.html" title="c/io/fgetc"><span class="t-lines"><span>fgetc</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fgets.html" title="c/io/fgets"><span class="t-lines"><span>fgets</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fputc.html" title="c/io/fputc"><span class="t-lines"><span>fputc</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fputs.html" title="c/io/fputs"><span class="t-lines"><span>fputs</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="getchar.html" title="c/io/getchar"><span class="t-lines"><span>getchar</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="gets.html" title="c/io/gets"><span class="t-lines"><span>gets</span><span>gets_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-until-c11">(until C11)</span></span><span><span class="t-mark-rev t-since-c11">(since C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="putchar.html" title="c/io/putchar"><span class="t-lines"><span>putchar</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="puts.html" title="c/io/puts"><span class="t-lines"><span>puts</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ungetc.html" title="c/io/ungetc"><span class="t-lines"><span>ungetc</span></span></a></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fgetwc.html" title="c/io/fgetwc"><span class="t-lines"><span>fgetwc</span><span>getwc</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fgetws.html" title="c/io/fgetws"><span class="t-lines"><span>fgetws</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fputwc.html" title="c/io/fputwc"><span class="t-lines"><span>fputwc</span><span>putwc</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fputws.html" title="c/io/fputws"><span class="t-lines"><span>fputws</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="getwchar.html" title="c/io/getwchar"><span class="t-lines"><span>getwchar</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="putwchar.html" title="c/io/putwchar"><span class="t-lines"><span>putwchar</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ungetwc.html" title="c/io/ungetwc"><span class="t-lines"><span>ungetwc</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Formatted input</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fscanf.html" title="c/io/fscanf"><span class="t-lines"><span>scanf</span><span>fscanf</span><span>sscanf</span><span>scanf_s</span><span>fscanf_s</span><span>sscanf_s</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fwscanf.html" title="c/io/fwscanf"><span class="t-lines"><span>wscanf</span><span>fwscanf</span><span>swscanf</span><span>wscanf_s</span><span>fwscanf_s</span><span>swscanf_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="vfscanf.html" title="c/io/vfscanf"><span class="t-lines"><span>vscanf</span><span>vfscanf</span><span>vsscanf</span><span>vscanf_s</span><span>vfscanf_s</span><span>vsscanf_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="vfwscanf.html" title="c/io/vfwscanf"><span class="t-lines"><span>vwscanf</span><span>vfwscanf</span><span>vswscanf</span><span>vwscanf_s</span><span>vfwscanf_s</span><span>vswscanf_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Formatted output</td></tr>
<tr class="t-nv-col-table"><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><strong class="selflink"><span class="t-lines"><span>printf</span><span>fprintf</span><span>sprintf</span><span>snprintf</span><span>printf_s</span><span>fprintf_s</span><span>sprintf_s</span><span>snprintf_s</span></span></strong></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fwprintf.html" title="c/io/fwprintf"><span class="t-lines"><span>wprintf</span><span>fwprintf</span><span>swprintf</span><span>wprintf_s</span><span>fwprintf_s</span><span>swprintf_s</span><span>snwprintf_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
</table></div></td><td><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="vfprintf.html" title="c/io/vfprintf"><span class="t-lines"><span>vprintf</span><span>vfprintf</span><span>vsprintf</span><span>vsnprintf</span><span>vprintf_s</span><span>vfprintf_s</span><span>vsprintf_s</span><span>vsnprintf_s</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="vfwprintf.html" title="c/io/vfwprintf"><span class="t-lines"><span>vwprintf</span><span>vfwprintf</span><span>vswprintf</span><span>vwprintf_s</span><span>vfwprintf_s</span><span>vswprintf_s</span><span>vsnwprintf_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
</table></div></td></tr>
<p><br />
</p>
<tr class="t-nv-h2"><td colspan="5"> File positioning</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ftell.html" title="c/io/ftell"><span class="t-lines"><span>ftell</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fgetpos.html" title="c/io/fgetpos"><span class="t-lines"><span>fgetpos</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fseek.html" title="c/io/fseek"><span class="t-lines"><span>fseek</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="fsetpos.html" title="c/io/fsetpos"><span class="t-lines"><span>fsetpos</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rewind.html" title="c/io/rewind"><span class="t-lines"><span>rewind</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Error handling</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="clearerr.html" title="c/io/clearerr"><span class="t-lines"><span>clearerr</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="feof.html" title="c/io/feof"><span class="t-lines"><span>feof</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ferror.html" title="c/io/ferror"><span class="t-lines"><span>ferror</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="perror.html" title="c/io/perror"><span class="t-lines"><span>perror</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Operations on files</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="remove.html" title="c/io/remove"><span class="t-lines"><span>remove</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rename.html" title="c/io/rename"><span class="t-lines"><span>rename</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="tmpfile.html" title="c/io/tmpfile"><span class="t-lines"><span>tmpfile</span><span>tmpfile_s</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="tmpnam.html" title="c/io/tmpnam"><span class="t-lines"><span>tmpnam</span><span>tmpnam_s</span></span></a></div><div><span class="t-lines"><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:c/io/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>Defined in header <code><stdio.h></code>
</div></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(1)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> printf<span class="br0">(</span> <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span>format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark">(until C99)</span> </td>
</tr>
<tr class="t-dcl t-since-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> printf<span class="br0">(</span> <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td>
</tr>
</tbody><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(2)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> fprintf<span class="br0">(</span> <a href="../io.html"><span class="kw880">FILE</span></a> <span class="sy2">*</span>stream, <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span>format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark">(until C99)</span> </td>
</tr>
<tr class="t-dcl t-since-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> fprintf<span class="br0">(</span> <a href="../io.html"><span class="kw880">FILE</span></a> <span class="sy2">*</span><span class="kw4">restrict</span> stream, <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td>
</tr>
</tbody><tbody>
</tbody>
<tbody class="t-dcl-rev t-dcl-rev-num"><tr class="t-dcl-rev-aux">
<td></td>
<td rowspan="142">(3)</td>
<td></td>
</tr>
<tr class="t-dcl t-until-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> sprintf<span class="br0">(</span> <span class="kw4">char</span> <span class="sy2">*</span>buffer, <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span>format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark">(until C99)</span> </td>
</tr>
<tr class="t-dcl t-since-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> sprintf<span class="br0">(</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> buffer, <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl t-since-c99">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> snprintf<span class="br0">(</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> buffer, <span class="kw4">int</span> bufsz, <br />
              <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ... <span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (4) </td>
<td> <span class="t-mark-rev t-since-c99">(since C99)</span> </td>
</tr>
<tr class="t-dcl t-since-c11">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> printf_s<span class="br0">(</span><span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ...<span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (5) </td>
<td> <span class="t-mark-rev t-since-c11">(since C11)</span> </td>
</tr>
<tr class="t-dcl t-since-c11">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> fprintf_s<span class="br0">(</span><a href="../io.html"><span class="kw880">FILE</span></a> <span class="sy2">*</span><span class="kw4">restrict</span> stream, <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ...<span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (6) </td>
<td> <span class="t-mark-rev t-since-c11">(since C11)</span> </td>
</tr>
<tr class="t-dcl t-since-c11">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> sprintf_s<span class="br0">(</span><span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> buffer, rsize_t bufsz,<br />
              <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ...<span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (7) </td>
<td> <span class="t-mark-rev t-since-c11">(since C11)</span> </td>
</tr>
<tr class="t-dcl t-since-c11">
<td> <div><span class="mw-geshi c source-c"><span class="kw4">int</span> snprintf_s<span class="br0">(</span><span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> buffer, rsize_t bufsz,<br />
               <span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span><span class="kw4">restrict</span> format, ...<span class="br0">)</span><span class="sy4">;</span></span></div></td>
<td> (8) </td>
<td> <span class="t-mark-rev t-since-c11">(since C11)</span> </td>
</tr>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p>Loads the data from the given locations, converts them to character string equivalents and writes the results to a variety of sinks.
</p>
<div class="t-li1"><span class="t-li">1)</span> Writes the results to the output stream <span class="t-lc"><a href="../io.html" title="c/io">stdout</a></span>.</div>
<div class="t-li1"><span class="t-li">2)</span> Writes the results to the output stream <code>stream</code>.</div>
<div class="t-li1"><span class="t-li">3)</span> Writes the results to a character string <code>buffer</code>. The behavior is undefined if the string to be written (plus the terminating null character) exceeds the size of the array pointed to by <code>buffer</code>.</div>
<div class="t-li1"><span class="t-li">4)</span> Writes the results to a character string <code>buffer</code>. At most <code>bufsz</code> - 1 characters are written. The resulting character string will be terminated with a null character, unless <code>bufsz</code> is zero. If <code>bufsz</code> is zero, nothing is written and <code>buffer</code> may be a null pointer, however the return value (number of bytes that would be written) is still calculated and returned.</div>
<div class="t-li1"><span class="t-li">5-8)</span> Same as <span class="t-v">(1-4)</span>, except that the following errors are detected at runtime and call the currently installed <a href="../error/set_constraint_handler_s.html" title="c/error/set constraint handler s">constraint handler</a> function:
<dl><dd><ul><li> the conversion specifier <code>%n</code> is present in <code>format</code>
</li><li> any of the arguments corresponding to <code>%s</code> is a null pointer
</li><li> <code>format</code> or <code>buffer</code> is a null pointer
</li><li> <code>bufsz</code> is zero or greater than <span class="t-lc">RSIZE_MAX</span>
</li><li> encoding errors occur in any of string and character conversion specifiers
</li><li> (for <code>sprintf_s</code> only), the string to be stored in <code>buffer</code> (including the trailing null) would be exceed <code>bufsz</code>
</li></ul>
</dd><dd>As all bounds-checked functions, <code>printf_s</code>, <code>fprintf_s</code>, <code>sprintf_s</code>, and <code>snrintf_s</code> are only guaranteed to be available if <span class="t-c"><span class="mw-geshi c source-c">__STDC_LIB_EXT1__</span></span> is defined by the implementation and if the user defines <span class="t-c"><span class="mw-geshi c source-c">__STDC_WANT_LIB_EXT1__</span></span> to the integer constant <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">1</span></span></span> before including <code><stdio.h></code>.</div>
</dd></dl>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="fprintf.html#Parameters"><span class="tocnumber">1</span> <span class="toctext">Parameters</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="fprintf.html#Return_value"><span class="tocnumber">2</span> <span class="toctext">Return value</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="fprintf.html#Notes"><span class="tocnumber">3</span> <span class="toctext">Notes</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="fprintf.html#Example"><span class="tocnumber">4</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="fprintf.html#References"><span class="tocnumber">5</span> <span class="toctext">References</span></a></li>
<li class="toclevel-1 tocsection-6"><a href="fprintf.html#See_also"><span class="tocnumber">6</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/io/fprintf&action=edit&section=1" title="Edit section: Parameters">edit</a>]</span> <span class="mw-headline" id="Parameters">Parameters</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td> stream
</td>
<td> -
</td>
<td> output file stream to write to
</td></tr>
<tr class="t-par">
<td> buffer
</td>
<td> -
</td>
<td> pointer to a character string to write to
</td></tr>
<tr class="t-par">
<td> bufsz
</td>
<td> -
</td>
<td> up to bufsz - 1 characters may be written, plus the null terminator
</td></tr>
<tr class="t-par">
<td> format
</td>
<td> -
</td>
<td> pointer to a null-terminated multibyte string specifying how to interpret the data.
<p>The format string consists of ordinary multibyte characters (except <code><b>%</b></code>), which are copied unchanged into the output stream, and conversion specifications. Each conversion specification has the following format:
</p>
<dl><dd><ul><li> introductory <code><b>%</b></code> character
</li></ul>
</dd></dl>
<dl><dd><ul><li> <span class="t-mark">(optional)</span> one or more flags that modify the behavior of the conversion:
</li></ul>
<dl><dd><ul><li> <code><b>-</b></code>: the result of the conversion is left-justified within the field (by default it is right-justified)
</li><li> <code><b>+</b></code>: the sign of signed conversions is always prepended to the result of the conversion (by default the result is preceded by minus only when it is negative)
</li><li> <i>space</i>: if the result of a signed conversion does not start with a sign character, or is empty, space is prepended to the result. It is ignored if <code>+</code> flag is present.
</li><li> <code><b>#</b></code> : <i>alternative form</i> of the conversion is performed. See the table below for exact effects otherwise the behavior is undefined.
</li><li> <code><b>0</b></code> : for integer and floating point number conversions, leading zeros are used to pad the field instead of <i>space</i> characters. For integer numbers it is ignored if the precision is explicitly specified. For other conversions using this flag results in undefined behavior. It is ignored if <code>-</code> flag is present.
</li></ul>
</dd></dl>
</dd></dl>
<dl><dd><ul><li> <span class="t-mark">(optional)</span> integer value or <code>*</code> that specifies minimum field width. The result is padded with <i>space</i> characters (by default), if required, on the left when right-justified, or on the right if left-justified. In the case when <code>*</code> is used, the width is specified by an additional argument of type <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span></span></span>. If the value of the argument is negative, it results with the <code>-</code> flag specified and positive field width. (Note: This is the minimum width: The value is never truncated.)
</li></ul>
</dd></dl>
<dl><dd><ul><li> <span class="t-mark">(optional)</span> <code><b>.</b></code> followed by integer number or <code><b>*</b></code>, or neither that specifies <i>precision</i> of the conversion. In the case when <code>*</code> is used, the <i>precision</i> is specified by an additional argument of type <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span></span></span>. If the value of this argument is negative, it is ignored. If neither a number nor <code><b>*</b></code> is used, the precision is taken as zero. See the table below for exact effects of <i>precision</i>.
</li></ul>
</dd></dl>
<dl><dd><ul><li> <span class="t-mark">(optional)</span> <i>length modifier</i> that specifies the size of the argument
</li></ul>
</dd></dl>
<dl><dd><ul><li> conversion format specifier
</li></ul>
</dd></dl>
<p>The following format specifiers are available:
</p>
<table class="wikitable" style="text-align:center; font-size:85%; max-width:90em;">
<tr>
<th rowspan="1"> Conversion<br /> specifier
</th>
<th rowspan="1"> Explanation
</th>
<th colspan="9"> Argument type
</th></tr>
<tr>
<th colspan="2" style="text-align:right; font-weight:normal;"> length modifier
</th>
<th> <code>hh</code>
</th>
<th> <code>h</code>
</th>
<th style="font-weight:normal;"> (none)
</th>
<th> <code><b>l</b></code>
</th>
<th> <code><b>ll</b></code>
</th>
<th> <code><b>j</b></code>
</th>
<th> <code><b>z</b></code>
</th>
<th> <code><b>t</b></code>
</th>
<th> <code><b>L</b></code>
</th></tr>
<tr>
<th> <code>%</code>
</th>
<td style="text-align:left;"> writes literal <code><b>%</b></code>. The full conversion specification must be <code><b>%%</b></code>.
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>c</code>
</th>
<td style="text-align:left;">
<dl><dd> writes a <b>single character</b>.
</dd></dl>
<p>The argument is first converted to <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">char</span></span></span>.
If the <b>l</b> modifier is used, the argument is first converted to a character string as if by <b>%ls</b> with a <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">wchar_t</span><span class="br0">[</span><span class="nu0">2</span><span class="br0">]</span></span></span> argument.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c">wint_t</span></span></div></div>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>s</code>
</th>
<td style="text-align:left;">
<dl><dd> writes a <b>character string</b>
</dd></dl>
<p>The argument must be a pointer to the initial element of an array of characters.
<i>Precision</i> specifies the maximum number of bytes to be written. If <i>Precision</i> is not specified, writes every byte up to and not including the first null terminator.
If the <b>l</b> specifier is used, the argument must be a pointer to the initial element of an array of <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">wchar_t</span></span></span>, which is converted to char array as if by a call to <span class="t-lc"><a href="../string/multibyte/wcrtomb.html" title="c/string/multibyte/wcrtomb">wcrtomb</a></span> with zero-initialized conversion state.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">char</span><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">wchar_t</span><span class="sy2">*</span></span></span></div></div>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>d</code><br /> <code>i</code>
</th>
<td style="text-align:left;">
<dl><dd>converts a <b>signed integer</b> into decimal representation <i>[-]dddd</i>.
</dd></dl>
<p><i>Precision</i> specifies the minimum number of digits to appear. The default precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">1</span></span></span>.<br />
If both the converted value and the precision are <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span> the conversion results in no characters.
</p>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">signed</span> <span class="kw4">char</span></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">short</span></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><a href="../types/integer.html"><span class="kw118">intmax_t</span></a></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div>signed <span class="t-c"><span class="mw-geshi c source-c"><a href="../types/size_t.html"><span class="kw100">size_t</span></a></span></span></div></div>
</td>
<td rowspan="1"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><a href="../types/ptrdiff_t.html"><span class="kw101">ptrdiff_t</span></a></span></span></div></div>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>o</code>
</th>
<td style="text-align:left;">
<dl><dd>converts a <b>unsigned integer</b> into octal representation <i>oooo</i>.
</dd></dl>
<p><i>Precision</i> specifies the minimum number of digits to appear. The default precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">1</span></span></span>.
If both the converted value and the precision are <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span> the conversion results in no characters.
In the <i>alternative implementation</i> precision is increased if necessary, to write one leading zero.
In that case if both the converted value and the precision are <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span>, single <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span> is written.
</p>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">char</span></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">short</span></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">int</span></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">long</span></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><a href="../types/integer.html"><span class="kw132">uintmax_t</span></a></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><a href="../types/size_t.html"><span class="kw100">size_t</span></a></span></span></div></div>
</td>
<td rowspan="3"> <div class="t-vertical"><div>unsigned version of <span class="t-c"><span class="mw-geshi c source-c"><a href="../types/ptrdiff_t.html"><span class="kw101">ptrdiff_t</span></a></span></span></div></div>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>x</code><br /> <code>X</code>
</th>
<td style="text-align:left;">
<dl><dd>converts an <b>unsigned integer</b> into hexadecimal representation <i>hhhh</i>.
</dd></dl>
<p>For the <code><b>x</b></code> conversion letters <code>abcdef</code> are used.<br />
For the <code><b>X</b></code> conversion letters <code>ABCDEF</code> are used.<br />
<i>Precision</i> specifies the minimum number of digits to appear. The default precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">1</span></span></span>.
If both the converted value and the precision are <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span> the conversion results in no characters.
In the <i>alternative implementation</i> <code><b>0x</b></code> or <code><b>0X</b></code> is prefixed to results if the converted value is nonzero.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>u</code>
</th>
<td style="text-align:left;">
<dl><dd>converts an <b>unsigned integer</b> into decimal representation <i>dddd</i>.
</dd></dl>
<p><i>Precision</i> specifies the minimum number of digits to appear.
The default precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">1</span></span></span>.
If both the converted value and the precision are <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span> the conversion results in no characters.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>f</code><br /> <code>F</code>
</th>
<td style="text-align:left;">
<dl><dd>converts <b>floating-point number</b> to the decimal notation in the style <i>[-]ddd.ddd</i>.
</dd></dl>
<p><i>Precision</i> specifies the minimum number of digits to appear after the decimal point character.
The default precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">6</span></span></span>.
In the <i>alternative implementation</i> decimal point character is written even if no digits follow it.
For infinity and not-a-number conversion style see notes.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td rowspan="4"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span></span></span></div></div>
</td>
<td rowspan="4"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">double</span></span></span></div></div>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td rowspan="4"> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">double</span></span></span></div></div>
</td></tr>
<tr>
<th> <code>e</code> <br /> <code>E</code>
</th>
<td style="text-align:left;">
<dl><dd>converts <b>floating-point number</b> to the decimal exponent notation.
</dd></dl>
<p>For the <code><b>e</b></code> conversion style <i>[-]d.ddd</i><code><b>e</b></code><i>±dd</i> is used.<br />
For the <code><b>E</b></code> conversion style <i>[-]d.ddd</i><code><b>E</b></code><i>±dd</i> is used.<br />
The exponent contains at least two digits, more digits are used only if necessary.
If the value is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span>, the exponent is also <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span>.
<i>Precision</i> specifies the minimum number of digits to appear after the decimal point character.
The default precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">6</span></span></span>.
In the <i>alternative implementation</i> decimal point character is written even if no digits follow it.
For infinity and not-a-number conversion style see notes.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>a</code> <br /> <code>A</code>
</th>
<td style="text-align:left;">
<dl><dd>converts <b>floating-point number</b> to the hexadecimal exponent notation.
</dd></dl>
<p>For the <code><b>a</b></code> conversion style <i>[-]</i><code><b>0x</b></code><i>h.hhh</i><code><b>p</b></code><i>±d</i> is used.<br />
For the <code><b>A</b></code> conversion style <i>[-]</i><code><b>0X</b></code><i>h.hhh</i><code><b>P</b></code><i>±d</i> is used.<br />
The first hexadecimal digit is <code>0</code> if the argument is not a normalized floating point value.
If the value is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span>, the exponent is also <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span>.
<i>Precision</i> specifies the minimum number of digits to appear after the decimal point character.
The default precision is sufficient for exact representation of the value.
In the <i>alternative implementation</i> decimal point character is written even if no digits follow it.
For infinity and not-a-number conversion style see notes.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>g</code> <br /> <code>G</code>
</th>
<td style="text-align:left;">
<dl><dd>converts <b>floating-point number</b> to decimal or decimal exponent notation depending on the value and the <i>precision</i>.
</dd></dl>
<p>For the <code><b>g</b></code> conversion style conversion with style <code><b>e</b></code> or <code><b>f</b></code> will be performed.<br />
For the <code><b>G</b></code> conversion style conversion with style <code><b>E</b></code> or <code><b>F</b></code> will be performed.<br />
Let <code>P</code> equal the precision if nonzero, <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">6</span></span></span> if the precision is not specified, or <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">1</span></span></span> if the precision is <span class="t-c"><span class="mw-geshi c source-c"><span class="nu0">0</span></span></span>. Then, if a conversion with style <code>E</code> would have an exponent of <code>X</code>:
</p>
<ul><li> if <i>P > X ≥ −4</i>, the conversion is with style <code><b>f</b></code> or <code><b>F</b></code> and precision <i>P − 1 − X</i>.
</li><li> otherwise, the conversion is with style <code><b>e</b></code> or <code><b>E</b></code> and precision <i>P − 1</i>.
</li></ul>
<p>Unless <i>alternative representation</i> is requested the trailing zeros are removed, also the decimal point character is removed if no fractional part is left.
For infinity and not-a-number conversion style see notes.
</p>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>n</code>
</th>
<td style="text-align:left;">
<dl><dd>returns the <b>number of characters written</b> so far by this call to the function.
</dd></dl>
<p>The result is <i>written</i> to the value pointed to by the argument.
The specification may not contain any <i>flag</i>, <i>field width</i>, or <i>precision</i>.
</p>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">signed</span> <span class="kw4">char</span><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">short</span><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">int</span><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">long</span> <span class="kw4">long</span><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><a href="../types/integer.html"><span class="kw118">intmax_t</span></a><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div>signed <span class="t-c"><span class="mw-geshi c source-c"><a href="../types/size_t.html"><span class="kw100">size_t</span></a><span class="sy2">*</span></span></span></div></div>
</td>
<td> <div class="t-vertical"><div><span class="t-c"><span class="mw-geshi c source-c"><a href="../types/ptrdiff_t.html"><span class="kw101">ptrdiff_t</span></a><span class="sy2">*</span></span></span></div></div>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr>
<tr>
<th> <code>p</code>
</th>
<td style="text-align:left;"> writes an implementation defined character sequence defining a <b>pointer</b>.
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td> <span class="t-c"><span class="mw-geshi c source-c"><span class="kw4">void</span><span class="sy2">*</span></span></span>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td>
<td style="background: #ececec; color: grey; vertical-align: middle; text-align: center;" class="table-na"> <small>N/A</small>
</td></tr></table>
<p>The floating point conversion functions convert infinity to <code>inf</code> or <code>infinity</code>. Which one is used is implementation defined.
</p><p>Not-a-number is converted to <code>nan</code> or <code>nan(<i>char_sequence</i>)</code>. Which one is used is implementation defined.
</p><p>The conversions <code><b>F</b></code>, <code><b>E</b></code>, <code><b>G</b></code>, <code><b>A</b></code> output <code>INF</code>, <code>INFINITY</code>, <code>NAN</code> instead.
</p><p>Even though <code>%c</code> expects <code>int</code> argument, it is safe to pass a <code>char</code> because of the integer promotion that takes place when a variadic function is called.
</p><p>The correct conversion specifications for the fixed-width character types (<span class="t-lc"><a href="../types/integer.html" title="c/types/integer">int8_t</a></span>, etc) are defined in the header <a href="../../cpp/types/integer.html" title="cpp/types/integer"><cinttypes></a>(C++) or <a href="../types/integer.html" title="c/types/integer"><inttypes.h></a> (C) (although <span class="t-lc"><a href="../types/integer.html" title="c/types/integer">PRIdMAX</a></span>, <span class="t-lc"><a href="../types/integer.html" title="c/types/integer">PRIuMAX</a></span>, etc is synonymous with <code>%jd</code>, <code>%ju</code>, etc).
</p><p>The memory-writing conversion specifier <span class="t-c"><span class="mw-geshi c source-c"><span class="sy2">%</span>n</span></span> is a common target of security exploits where format strings depend on user input and is not supported by the bounds-checked <code>printf_s</code> family of functions.
</p><p>If a conversion specification is invalid, the behavior is undefined.
</p><p><br />
</p>
</td></tr>
<tr class="t-par">
<td> ...
</td>
<td> -
</td>
<td> arguments specifying data to print
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/io/fprintf&action=edit&section=2" title="Edit section: Return value">edit</a>]</span> <span class="mw-headline" id="Return_value">Return value</span></h3>
<div class="t-li1"><span class="t-li">1,2)</span> number of characters transmitted to the output stream or negative value if an output error or an encoding error (for string and character conversion specifiers) occurred</div>
<div class="t-li1"><span class="t-li">3)</span> number of characters written to <code>buffer</code> (not counting the terminating null character), or a negative value if an encoding error (for string and character conversion specifiers) occurred</div>
<div class="t-li1"><span class="t-li">4)</span> number of characters (not including the terminating null character) which would have been written to <code>buffer</code> if <code>bufsz</code> was ignored, or a negative value if an encoding error (for string and character conversion specifiers) occurred</div>
<div class="t-li1"><span class="t-li">5,6)</span> number of characters transmitted to the output stream or negative value if an output error, a runtime constrants violation error, or an encoding error occurred.</div>
<div class="t-li1"><span class="t-li">7)</span> number of characters written to <code>buffer</code>, not counting the null character (which is always written as long as <code>buffer</code> is not a null pointer and <code>bufsz</code> is not zero and not greater than <code>RSIZE_MAX</code>), or zero on runtime constraint violations, and negative value on encoding errors</div>
<div class="t-li1"><span class="t-li">8)</span> number of characters not including the terminating null character (which is always written as long as <code>buffer</code> is not a null pointer and <code>bufsz</code> is not zero and not greater than <code>RSIZE_MAX</code>), which would have been written to <code>buffer</code> if <code>bufsz</code> was ignored, or a negative value if a runtime constraints violation or an encoding error occurred</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/io/fprintf&action=edit&section=3" title="Edit section: Notes">edit</a>]</span> <span class="mw-headline" id="Notes">Notes</span></h3>
<p><a rel="nofollow" class="external text" href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/fprintf.html">POSIX specifies</a> that <span class="t-lc"><a href="../error/errno.html" title="c/error/errno">errno</a></span> is set on error.
</p><p>Calling <code>snprintf</code> with zero <code>bufsz</code> and null pointer for <code>buffer</code> is useful to determine the necessary buffer size to contain the output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="c source-c"><pre class="de1"><span class="kw4">const</span> <span class="kw4">char</span> <span class="sy2">*</span>fmt <span class="sy1">=</span> <span class="st0">"sqrt(2) = %f"</span><span class="sy4">;</span>
<span class="kw4">int</span> sz <span class="sy1">=</span> snprintf<span class="br0">(</span><a href="../types/NULL.html"><span class="kw103">NULL</span></a>, <span class="nu0">0</span>, fmt, <a href="../numeric/math/sqrt.html"><span class="kw665">sqrt</span></a><span class="br0">(</span><span class="nu0">2</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">char</span> buf<span class="br0">[</span>sz <span class="sy2">+</span> <span class="nu0">1</span><span class="br0">]</span><span class="sy4">;</span> <span class="co1">// note +1 for terminating null byte</span>
snprintf<span class="br0">(</span>buf, <span class="kw4">sizeof</span> buf, fmt, <a href="../numeric/math/sqrt.html"><span class="kw665">sqrt</span></a><span class="br0">(</span><span class="nu0">2</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span></pre></div></div>
<p><code>snprintf_s</code>, just like <code>snprintf</code>, but unlike <code>sprintf_s</code>, will truncate the output to fit in <code>bufsz-1</code>.
</p>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/io/fprintf&action=edit&section=4" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="c source-c"><pre class="de1"><span class="co2">#include <stdio.h></span>
 
<span class="kw4">int</span> main<span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>
<span class="br0">{</span>
printf<span class="br0">(</span><span class="st0">"Strings:<span class="es1">\n</span>"</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> s <span class="sy1">=</span> <span class="st0">"Hello"</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"<span class="es1">\t</span>.%10s.<span class="es1">\n</span><span class="es1">\t</span>.%-10s.<span class="es1">\n</span><span class="es1">\t</span>.%*s.<span class="es1">\n</span>"</span>, s, s, <span class="nu0">10</span>, s<span class="br0">)</span><span class="sy4">;</span>
 
printf<span class="br0">(</span><span class="st0">"Characters:<span class="es1">\t</span>%c %%<span class="es1">\n</span>"</span>, <span class="nu0">65</span><span class="br0">)</span><span class="sy4">;</span>
 
printf<span class="br0">(</span><span class="st0">"Integers<span class="es1">\n</span>"</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Decimal:<span class="es1">\t</span>%i %d %.6i %i %.0i %+i %u<span class="es1">\n</span>"</span>, <span class="nu0">1</span>, <span class="nu0">2</span>, <span class="nu0">3</span>, <span class="nu0">0</span>, <span class="nu0">0</span>, <span class="nu0">4</span>, <span class="sy2">-</span><span class="nu0">1</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Hexadecimal:<span class="es1">\t</span>%x %x %X %#x<span class="es1">\n</span>"</span>, <span class="nu0">5</span>, <span class="nu0">10</span>, <span class="nu0">10</span>, <span class="nu0">6</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Octal:<span class="es1">\t</span>%o %#o %#o<span class="es1">\n</span>"</span>, <span class="nu0">10</span>, <span class="nu0">10</span>, <span class="nu0">4</span><span class="br0">)</span><span class="sy4">;</span>
 
printf<span class="br0">(</span><span class="st0">"Floating point<span class="es1">\n</span>"</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Rounding:<span class="es1">\t</span>%f %.0f %.32f<span class="es1">\n</span>"</span>, <span class="nu16">1.5</span>, <span class="nu16">1.5</span>, <span class="nu16">1.3</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Padding:<span class="es1">\t</span>%05.2f %.2f %5.2f<span class="es1">\n</span>"</span>, <span class="nu16">1.5</span>, <span class="nu16">1.5</span>, <span class="nu16">1.5</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Scientific:<span class="es1">\t</span>%E %e<span class="es1">\n</span>"</span>, <span class="nu16">1.5</span>, <span class="nu16">1.5</span><span class="br0">)</span><span class="sy4">;</span>
printf<span class="br0">(</span><span class="st0">"Hexadecimal:<span class="es1">\t</span>%a %A<span class="es1">\n</span>"</span>, <span class="nu16">1.5</span>, <span class="nu16">1.5</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p>Output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">Strings:
. Hello.
.Hello .
. Hello.
Characters: A %
Integers
Decimal: 1 2 000003 0 +4 4294967295
Hexadecimal: 5 a A 0x6
Octal: 12 012 04
Floating point
Rounding: 1.500000 2 1.30000000000000004440892098500626
Padding: 01.50 1.50 1.50
Scientific: 1.500000E+00 1.500000e+00
Hexadecimal: 0x1.8p+0 0X1.8P+0</pre></div></div>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/io/fprintf&action=edit&section=5" title="Edit section: References">edit</a>]</span> <span class="mw-headline" id="References">References</span></h3>
<div class="t-ref-std-11">
<ul><li> C11 standard (ISO/IEC 9899:2011):
</li></ul>
<dl><dd><ul><li> 7.21.6.1 The fprintf function (p: 309-316)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.21.6.3 The printf function (p: 324)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.21.6.5 The snprintf function (p: 325)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.21.6.6 The sprintf function (p: 325-326)
</li></ul>
</dd></dl>
<dl><dd><ul><li> K.3.5.3.1 The fprintf_s function (p: 591)
</li></ul>
</dd></dl>
<dl><dd><ul><li> K.3.5.3.3 The printf_s function (p: 593-594)
</li></ul>
</dd></dl>
<dl><dd><ul><li> K.3.5.3.5 The snprintf_s function (p: 594-595)
</li></ul>
</dd></dl>
<dl><dd><ul><li> K.3.5.3.6 The sprintf_s function (p: 595-596)
</li></ul>
</dd></dl>
<div class="t-ref-std-c99">
<ul><li> C99 standard (ISO/IEC 9899:1999):
</li></ul>
<dl><dd><ul><li> 7.19.6.1 The fprintf function (p: 274-282)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.19.6.3 The printf function (p: 290)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.19.6.5 The snprintf function (p: 290-291)
</li></ul>
</dd></dl>
<dl><dd><ul><li> 7.19.6.6 The sprintf function (p: 291)
</li></ul>
</dd></dl>
<div class="t-ref-std-c89">
<ul><li> C89/C90 standard (ISO/IEC 9899:1990):
</li></ul>
<dl><dd><ul><li> 4.9.6.1 The fprintf function
</li></ul>
</dd></dl>
<dl><dd><ul><li> 4.9.6.3 The printf function
</li></ul>
</dd></dl>
<dl><dd><ul><li> 4.9.6.5 The sprintf function
</li></ul>
</dd></dl>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=c/io/fprintf&action=edit&section=6" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fwprintf.html" title="c/io/fwprintf"> <span class="t-lines"><span>wprintf</span><span>fwprintf</span><span>swprintf</span><span>wprintf_s</span><span>fwprintf_s</span><span>swprintf_s</span><span>snwprintf_s</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c95">(C95)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> prints formatted wide character output to <span class="t-lc"><a href="../io.html" title="c/io">stdout</a></span>, a file stream or a buffer <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:c/io/dsc_fwprintf&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="vfprintf.html" title="c/io/vfprintf"> <span class="t-lines"><span>vprintf</span><span>vfprintf</span><span>vsprintf</span><span>vsnprintf</span><span>vprintf_s</span><span>vfprintf_s</span><span>vsprintf_s</span><span>vsnprintf_s</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c99">(C99)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> prints formatted output to <span class="t-lc"><a href="../io.html" title="c/io">stdout</a></span>, a file stream or a buffer<br /> using variable argument list <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:c/io/dsc_vfprintf&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fputs.html" title="c/io/fputs"> <span class="t-lines"><span>fputs</span></span></a></div></div>
</td>
<td> writes a character string to a file stream <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:c/io/dsc_fputs&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="fscanf.html" title="c/io/fscanf"> <span class="t-lines"><span>scanf</span><span>fscanf</span><span>sscanf</span><span>scanf_s</span><span>fscanf_s</span><span>sscanf_s</span></span></a></div><div><span class="t-lines"><span></span><span></span><span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span><span><span class="t-mark-rev t-since-c11">(C11)</span></span></span></div></div>
</td>
<td> reads formatted input from <span class="t-lc"><a href="../io.html" title="c/io">stdin</a></span>, a file stream or a buffer <br /> <span class="t-mark">(function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:c/io/dsc_fscanf&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td colspan="2"> <div class="t-dsc-see"><span><a href="../../cpp/io/c/printf.html" title="cpp/io/c/fprintf">C++ documentation</a></span> for <span class="t-dsc-see-tt"><span>printf</span>, <span>fprintf</span>, <span>sprintf</span>, <span>snprintf</span></span></div>
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