138 lines
5.6 KiB
HTML
138 lines
5.6 KiB
HTML
<html>
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
||
<title>Constant buffer sequence requirements</title>
|
||
<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css">
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.79.1">
|
||
<link rel="home" href="../../boost_asio.html" title="Boost.Asio">
|
||
<link rel="up" href="../reference.html" title="Reference">
|
||
<link rel="prev" href="ConnectHandler.html" title="Connect handler requirements">
|
||
<link rel="next" href="DynamicBuffer.html" title="Dynamic buffer requirements">
|
||
</head>
|
||
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
|
||
<table cellpadding="2" width="100%"><tr>
|
||
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td>
|
||
<td align="center"><a href="../../../../index.html">Home</a></td>
|
||
<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td>
|
||
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
|
||
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
|
||
<td align="center"><a href="../../../../more/index.htm">More</a></td>
|
||
</tr></table>
|
||
<hr>
|
||
<div class="spirit-nav">
|
||
<a accesskey="p" href="ConnectHandler.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="DynamicBuffer.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a>
|
||
</div>
|
||
<div class="section">
|
||
<div class="titlepage"><div><div><h3 class="title">
|
||
<a name="boost_asio.reference.ConstBufferSequence"></a><a class="link" href="ConstBufferSequence.html" title="Constant buffer sequence requirements">Constant buffer
|
||
sequence requirements</a>
|
||
</h3></div></div></div>
|
||
<p>
|
||
A <span class="emphasis"><em>constant buffer sequence</em></span> represents a set of memory
|
||
regions that may be used as input to an operation, such as the <code class="computeroutput">send</code>
|
||
operation of a socket.
|
||
</p>
|
||
<p>
|
||
A type <code class="computeroutput">X</code> meets the <code class="computeroutput">ConstBufferSequence</code> requirements
|
||
if it satisfies the requirements of <code class="computeroutput">Destructible</code> (C++Std [destructible])
|
||
and <code class="computeroutput">CopyConstructible</code> (C++Std [copyconstructible]), as well
|
||
as the additional requirements listed below.
|
||
</p>
|
||
<p>
|
||
In the table below, <code class="computeroutput">x</code> denotes a (possibly const) value of type
|
||
<code class="computeroutput">X</code>, and <code class="computeroutput">u</code> denotes an identifier.
|
||
</p>
|
||
<div class="table">
|
||
<a name="boost_asio.reference.ConstBufferSequence.t0"></a><p class="title"><b>Table 8. ConstBufferSequence requirements</b></p>
|
||
<div class="table-contents"><table class="table" summary="ConstBufferSequence requirements">
|
||
<colgroup>
|
||
<col>
|
||
<col>
|
||
<col>
|
||
</colgroup>
|
||
<thead><tr>
|
||
<th>
|
||
<p>
|
||
expression
|
||
</p>
|
||
</th>
|
||
<th>
|
||
<p>
|
||
return type
|
||
</p>
|
||
</th>
|
||
<th>
|
||
<p>
|
||
assertion/note<br> pre/post-condition
|
||
</p>
|
||
</th>
|
||
</tr></thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>
|
||
<p>
|
||
<code class="computeroutput">boost::asio::buffer_sequence_begin(x)</code><br> <code class="computeroutput">boost::asio::buffer_sequence_end(x)</code>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
An iterator type meeting the requirements for bidirectional iterators
|
||
(C++Std [bidirectional.iterators]) whose value type is convertible
|
||
to <code class="computeroutput">const_buffer</code>.
|
||
</p>
|
||
</td>
|
||
<td>
|
||
</td>
|
||
</tr>
|
||
<tr>
|
||
<td>
|
||
<p>
|
||
</p>
|
||
<pre class="programlisting">X u(x);
|
||
</pre>
|
||
<p>
|
||
</p>
|
||
</td>
|
||
<td>
|
||
</td>
|
||
<td>
|
||
<p>
|
||
post:<br>
|
||
</p>
|
||
<pre class="programlisting">equal(
|
||
boost::asio::buffer_sequence_begin(x),
|
||
boost::asio::buffer_sequence_end(x),
|
||
boost::asio::buffer_sequence_begin(u),
|
||
boost::asio::buffer_sequence_end(u),
|
||
[](const const_buffer& b1,
|
||
const const_buffer& b2)
|
||
{
|
||
return b1.data() == b2.data()
|
||
&& b1.size() == b2.size();
|
||
})
|
||
</pre>
|
||
<p>
|
||
</p>
|
||
</td>
|
||
</tr>
|
||
</tbody>
|
||
</table></div>
|
||
</div>
|
||
<br class="table-break">
|
||
</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 © 2003-2021 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="ConnectHandler.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../reference.html"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../boost_asio.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="DynamicBuffer.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a>
|
||
</div>
|
||
</body>
|
||
</html>
|