<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>const_buffer</title> <link rel="stylesheet" href="../../boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2"> <link rel="start" href="../../index.html" title="Asio"> <link rel="up" href="../reference.html" title="Reference"> <link rel="prev" href="buffers_iterator/operator_lb__rb_.html" title="buffers_iterator::operator[]"> <link rel="next" href="const_buffer/buffer_cast.html" title="const_buffer::buffer_cast"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr><td valign="top"><img alt="asio C++ library" width="250" height="60" src="../../asio.png"></td></tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="buffers_iterator/operator_lb__rb_.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="const_buffer/buffer_cast.html"><img src="../../next.png" alt="Next"></a> </div> <div class="section" lang="en"> <div class="titlepage"><div><div><h3 class="title"> <a name="asio.reference.const_buffer"></a><a class="link" href="const_buffer.html" title="const_buffer"> const_buffer</a> </h3></div></div></div> <p> Holds a buffer that cannot be modified. </p> <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">const_buffer</span> </pre> <a name="asio.reference.const_buffer.member_functions"></a><h5> <a name="id820833"></a> <a class="link" href="const_buffer.html#asio.reference.const_buffer.member_functions">Member Functions</a> </h5> <div class="informaltable"><table class="table"> <colgroup> <col> <col> </colgroup> <thead><tr> <th> <p> Name </p> </th> <th> <p> Description </p> </th> </tr></thead> <tbody><tr> <td> <p> <a class="link" href="const_buffer/const_buffer.html" title="const_buffer::const_buffer"><span class="bold"><strong>const_buffer</strong></span></a> </p> </td> <td> <p> Construct an empty buffer. </p> <p> Construct a buffer to represent a given memory range. </p> <p> Construct a non-modifiable buffer from a modifiable one. </p> </td> </tr></tbody> </table></div> <a name="asio.reference.const_buffer.related_functions"></a><h5> <a name="id820919"></a> <a class="link" href="const_buffer.html#asio.reference.const_buffer.related_functions">Related Functions</a> </h5> <div class="informaltable"><table class="table"> <colgroup> <col> <col> </colgroup> <thead><tr> <th> <p> Name </p> </th> <th> <p> Description </p> </th> </tr></thead> <tbody> <tr> <td> <p> <a class="link" href="const_buffer/buffer_cast.html" title="const_buffer::buffer_cast"><span class="bold"><strong>buffer_cast</strong></span></a> </p> </td> <td> <p> Cast a non-modifiable buffer to a specified pointer to POD type. </p> </td> </tr> <tr> <td> <p> <a class="link" href="const_buffer/buffer_size.html" title="const_buffer::buffer_size"><span class="bold"><strong>buffer_size</strong></span></a> </p> </td> <td> <p> Get the number of bytes in a non-modifiable buffer. </p> </td> </tr> <tr> <td> <p> <a class="link" href="const_buffer/operator_plus_.html" title="const_buffer::operator+"><span class="bold"><strong>operator+</strong></span></a> </p> </td> <td> <p> Create a new non-modifiable buffer that is offset from the start of another. </p> </td> </tr> </tbody> </table></div> <p> The <a class="link" href="const_buffer.html" title="const_buffer"><code class="computeroutput"><span class="identifier">const_buffer</span></code></a> class provides a safe representation of a buffer that cannot be modified. It does not own the underlying data, and so is cheap to copy or assign. </p> <a name="asio.reference.const_buffer.requirements"></a><h5> <a name="id821075"></a> <a class="link" href="const_buffer.html#asio.reference.const_buffer.requirements">Requirements</a> </h5> <p> <span class="bold"><strong>Header: </strong></span><code class="literal">asio/buffer.hpp</code> </p> <p> <span class="bold"><strong>Convenience header: </strong></span><code class="literal">asio.hpp</code> </p> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2003 - 2010 Christopher M. Kohlhoff<p> Distributed under the Boost Software License, Version 1.0. (See accompanying 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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="buffers_iterator/operator_lb__rb_.html"><img src="../../prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../home.png" alt="Home"></a><a accesskey="n" href="const_buffer/buffer_cast.html"><img src="../../next.png" alt="Next"></a> </div> </body> </html>