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putc [C++ Reference]
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<h2><a name="putc" id="putc">putc</a></h2>
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<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include &lt;cstdio&gt;</span>
<span class="kw4">int</span> putc<span class="br0">&#40;</span> <span class="kw4">int</span> ch<span class="sy0">,</span> FILE <span class="sy0">*</span>stream <span class="br0">&#41;</span><span class="sy0">;</span></pre>
<p>
The putc() function writes the character ch to stream. The return value is the
character written, or <acronym title="End of file">EOF</acronym> if there is an error. For example:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="kw4">int</span> ch<span class="sy0">;</span>
FILE <span class="sy0">*</span>input<span class="sy0">,</span> <span class="sy0">*</span>output<span class="sy0">;</span>
input <span class="sy0">=</span> fopen<span class="br0">&#40;</span> <span class="st0">&quot;tmp.c&quot;</span><span class="sy0">,</span> <span class="st0">&quot;r&quot;</span> <span class="br0">&#41;</span><span class="sy0">;</span>
output <span class="sy0">=</span> fopen<span class="br0">&#40;</span> <span class="st0">&quot;tmpCopy.c&quot;</span><span class="sy0">,</span> <span class="st0">&quot;w&quot;</span> <span class="br0">&#41;</span><span class="sy0">;</span>
ch <span class="sy0">=</span> getc<span class="br0">&#40;</span> input <span class="br0">&#41;</span><span class="sy0">;</span>
<span class="kw1">while</span><span class="br0">&#40;</span> ch <span class="sy0">!=</span> EOF <span class="br0">&#41;</span> <span class="br0">&#123;</span>
putc<span class="br0">&#40;</span> ch<span class="sy0">,</span> output <span class="br0">&#41;</span><span class="sy0">;</span>
ch <span class="sy0">=</span> getc<span class="br0">&#40;</span> input <span class="br0">&#41;</span><span class="sy0">;</span>
<span class="br0">&#125;</span>
fclose<span class="br0">&#40;</span> input <span class="br0">&#41;</span><span class="sy0">;</span>
fclose<span class="br0">&#40;</span> output <span class="br0">&#41;</span><span class="sy0">;</span></pre>
<p>
generates a copy of the file tmp.c called tmpCopy.c.
</p>
<p>
Related Topics: <a href="../../c/io/feof.html" class="wikilink1" title="c:io:feof">feof</a>, <a href="../../c/io/fflush.html" class="wikilink1" title="c:io:fflush">fflush</a>, <a href="../../c/io/fgetc.html" class="wikilink1" title="c:io:fgetc">fgetc</a>, <a href="../../c/io/fputc.html" class="wikilink1" title="c:io:fputc">fputc</a>, <a href="../../c/io/getc.html" class="wikilink1" title="c:io:getc">getc</a>, <a href="../../c/io/getchar.html" class="wikilink1" title="c:io:getchar">getchar</a>, <a href="../../c/io/putchar.html" class="wikilink1" title="c:io:putchar">putchar</a>, <a href="../../c/io/puts.html" class="wikilink1" title="c:io:puts">puts</a>
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