1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>file::read</title> 5<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../index.html" title="Chapter 1. Boost.Beast"> 8<link rel="up" href="../boost__beast__file.html" title="file"> 9<link rel="prev" href="seek.html" title="file::seek"> 10<link rel="next" href="write.html" title="file::write"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="seek.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost__beast__file.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="write.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="beast.ref.boost__beast__file.read"></a><a class="link" href="read.html" title="file::read">file::read</a> 28</h5></div></div></div> 29<p> 30 <a class="indexterm" name="idm46057539127184"></a> 31 </p> 32<p> 33 (Inherited from <a class="link" href="../boost__beast__file_stdio.html" title="file_stdio"><code class="computeroutput"><span class="identifier">file_stdio</span></code></a>) 34 </p> 35<p> 36 Read from the open file. 37 </p> 38<h6> 39<a name="beast.ref.boost__beast__file.read.h0"></a> 40 <span class="phrase"><a name="beast.ref.boost__beast__file.read.synopsis"></a></span><a class="link" href="read.html#beast.ref.boost__beast__file.read.synopsis">Synopsis</a> 41 </h6> 42<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> 43<span class="identifier">read</span><span class="special">(</span> 44 <span class="keyword">void</span><span class="special">*</span> <span class="identifier">buffer</span><span class="special">,</span> 45 <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">,</span> 46 <span class="identifier">error_code</span><span class="special">&</span> <span class="identifier">ec</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 47</pre> 48<h6> 49<a name="beast.ref.boost__beast__file.read.h1"></a> 50 <span class="phrase"><a name="beast.ref.boost__beast__file.read.description"></a></span><a class="link" href="read.html#beast.ref.boost__beast__file.read.description">Description</a> 51 </h6> 52<h6> 53<a name="beast.ref.boost__beast__file.read.h2"></a> 54 <span class="phrase"><a name="beast.ref.boost__beast__file.read.parameters"></a></span><a class="link" href="read.html#beast.ref.boost__beast__file.read.parameters">Parameters</a> 55 </h6> 56<div class="informaltable"><table class="table"> 57<colgroup> 58<col> 59<col> 60</colgroup> 61<thead><tr> 62<th> 63 <p> 64 Name 65 </p> 66 </th> 67<th> 68 <p> 69 Description 70 </p> 71 </th> 72</tr></thead> 73<tbody> 74<tr> 75<td> 76 <p> 77 <code class="computeroutput"><span class="identifier">buffer</span></code> 78 </p> 79 </td> 80<td> 81 <p> 82 The buffer for storing the result of the read 83 </p> 84 </td> 85</tr> 86<tr> 87<td> 88 <p> 89 <code class="computeroutput"><span class="identifier">n</span></code> 90 </p> 91 </td> 92<td> 93 <p> 94 The number of bytes to read 95 </p> 96 </td> 97</tr> 98<tr> 99<td> 100 <p> 101 <code class="computeroutput"><span class="identifier">ec</span></code> 102 </p> 103 </td> 104<td> 105 <p> 106 Set to the error, if any occurred 107 </p> 108 </td> 109</tr> 110</tbody> 111</table></div> 112</div> 113<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 114<td align="left"></td> 115<td align="right"><div class="copyright-footer">Copyright © 2016-2019 Vinnie 116 Falco<p> 117 Distributed under the Boost Software License, Version 1.0. (See accompanying 118 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>) 119 </p> 120</div></td> 121</tr></table> 122<hr> 123<div class="spirit-nav"> 124<a accesskey="p" href="seek.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../boost__beast__file.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="write.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> 125</div> 126</body> 127</html> 128
