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<title>Settable serial port option requirements</title>
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<table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table>
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<div class="titlepage"><div><div><h3 class="title">
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<a name="asio.reference.SettableSerialPortOption"></a><a class="link" href="SettableSerialPortOption.html" title="Settable serial port option requirements">Settable serial
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port option requirements</a>
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</h3></div></div></div>
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<p>
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In the table below, <code class="computeroutput"><span class="identifier">X</span></code> denotes
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a serial port option class, <code class="computeroutput"><span class="identifier">a</span></code>
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denotes a value of <code class="computeroutput"><span class="identifier">X</span></code>, <code class="computeroutput"><span class="identifier">ec</span></code> denotes a value of type <code class="computeroutput"><span class="identifier">error_code</span></code>, and <code class="computeroutput"><span class="identifier">s</span></code>
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denotes a value of implementation-defined type <span class="emphasis"><em><code class="literal">storage</code></em></span>
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(where <span class="emphasis"><em><code class="literal">storage</code></em></span> is the type <code class="computeroutput"><span class="identifier">DCB</span></code> on Windows and <code class="computeroutput"><span class="identifier">termios</span></code>
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on <span class="emphasis"><em>POSIX</em></span> platforms), and <code class="computeroutput"><span class="identifier">u</span></code>
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denotes an identifier.
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</p>
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<div class="table">
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<a name="asio.reference.SettableSerialPortOption.t0"></a><p class="title"><b>Table 28. SettableSerialPortOption requirements</b></p>
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<div class="table-contents"><table class="table" summary="SettableSerialPortOption requirements">
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<colgroup>
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<col>
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<col>
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<thead><tr>
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<th>
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<p>
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expression
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</p>
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</th>
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<th>
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<p>
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type
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</p>
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</th>
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<th>
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<p>
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assertion/note<br> pre/post-conditions
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</p>
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</th>
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</tr></thead>
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<tbody><tr>
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<td>
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<p>
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<code class="computeroutput"><span class="keyword">const</span> <span class="identifier">X</span><span class="special">&</span> <span class="identifier">u</span>
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<span class="special">=</span> <span class="identifier">a</span><span class="special">;</span></code><br> <code class="computeroutput"><span class="identifier">u</span><span class="special">.</span><span class="identifier">store</span><span class="special">(</span><span class="identifier">s</span><span class="special">,</span> <span class="identifier">ec</span><span class="special">);</span></code>
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</p>
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</td>
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<td>
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<p>
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<code class="computeroutput"><span class="identifier">error_code</span></code>
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</p>
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</td>
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<td>
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<p>
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Saves the value of the serial port option to the storage.<br>
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<br> If successful, sets <code class="computeroutput"><span class="identifier">ec</span></code>
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such that <code class="computeroutput"><span class="special">!</span><span class="identifier">ec</span></code>
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is true. If an error occurred, sets <code class="computeroutput"><span class="identifier">ec</span></code>
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such that <code class="computeroutput"><span class="special">!!</span><span class="identifier">ec</span></code>
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is true. Returns <code class="computeroutput"><span class="identifier">ec</span></code>.
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</p>
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</td>
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</tr></tbody>
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</table></div>
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</div>
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<br class="table-break">
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</div>
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<div class="copyright-footer">Copyright © 2003-2023 Christopher M. Kohlhoff<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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</p>
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</div>
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