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<a name="swab_002d_002d_002dswap-adjacent-bytes"></a>
<h3 class="section">5.46 <code>swab</code>&mdash;swap adjacent bytes</h3>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;unistd.h&gt;
void swab(const void *<var>in</var>, void *<var>out</var>, ssize_t <var>n</var>);

</pre></div>
<p><strong>Description</strong><br>
This function copies <var>n</var> bytes from the memory region
pointed to by <var>in</var> to the memory region pointed to by
<var>out</var>, exchanging adjacent even and odd bytes.
</p>
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<p><strong>Portability</strong><br>
<code>swab</code> requires no supporting OS subroutines.
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