66 lines
4.7 KiB
HTML
66 lines
4.7 KiB
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>buffer (25 of 42 overloads)</title>
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<link rel="prev" href="overload24.html" title="buffer (24 of 42 overloads)">
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<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
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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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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="overload24.html"><img src="../../../prev.png" alt="Prev"></a><a accesskey="u" href="../buffer.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="overload26.html"><img src="../../../next.png" alt="Next"></a>
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<div class="section">
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<div class="titlepage"><div><div><h4 class="title">
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<a name="asio.reference.buffer.overload25"></a><a class="link" href="overload25.html" title="buffer (25 of 42 overloads)">buffer (25 of 42
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overloads)</a>
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</h4></div></div></div>
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<p>
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Create a new non-modifiable buffer that represents the given POD vector.
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</p>
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<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span>
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<span class="keyword">typename</span> <span class="identifier">PodType</span><span class="special">,</span>
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<span class="keyword">typename</span> <span class="identifier">Allocator</span><span class="special">></span>
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<span class="identifier">const_buffer</span> <span class="identifier">buffer</span><span class="special">(</span>
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<span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span> <span class="identifier">PodType</span><span class="special">,</span> <span class="identifier">Allocator</span> <span class="special">></span> <span class="special">&</span> <span class="identifier">data</span><span class="special">);</span>
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</pre>
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<h6>
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<a name="asio.reference.buffer.overload25.h0"></a>
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<span><a name="asio.reference.buffer.overload25.return_value"></a></span><a class="link" href="overload25.html#asio.reference.buffer.overload25.return_value">Return
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Value</a>
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</h6>
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<p>
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A <a class="link" href="../const_buffer.html" title="const_buffer"><code class="computeroutput"><span class="identifier">const_buffer</span></code></a>
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value equivalent to:
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</p>
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<pre class="programlisting"><span class="identifier">const_buffer</span><span class="special">(</span>
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<span class="identifier">data</span><span class="special">.</span><span class="identifier">size</span><span class="special">()</span> <span class="special">?</span> <span class="special">&</span><span class="identifier">data</span><span class="special">[</span><span class="number">0</span><span class="special">]</span> <span class="special">:</span> <span class="number">0</span><span class="special">,</span>
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<span class="identifier">data</span><span class="special">.</span><span class="identifier">size</span><span class="special">()</span> <span class="special">*</span> <span class="keyword">sizeof</span><span class="special">(</span><span class="identifier">PodType</span><span class="special">));</span>
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</pre>
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<h6>
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<a name="asio.reference.buffer.overload25.h1"></a>
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<span><a name="asio.reference.buffer.overload25.remarks"></a></span><a class="link" href="overload25.html#asio.reference.buffer.overload25.remarks">Remarks</a>
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</h6>
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<p>
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The buffer is invalidated by any vector operation that would also invalidate
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iterators.
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</p>
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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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<hr>
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<div class="spirit-nav">
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