1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>buffered_stream::peek</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="../../../boost_asio.html" title="Boost.Asio"> 8<link rel="up" href="../buffered_stream.html" title="buffered_stream"> 9<link rel="prev" href="next_layer_type.html" title="buffered_stream::next_layer_type"> 10<link rel="next" href="peek/overload1.html" title="buffered_stream::peek (1 of 2 overloads)"> 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="next_layer_type.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../buffered_stream.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="peek/overload1.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h4 class="title"> 27<a name="boost_asio.reference.buffered_stream.peek"></a><a class="link" href="peek.html" title="buffered_stream::peek">buffered_stream::peek</a> 28</h4></div></div></div> 29<p> 30 <a class="indexterm" name="boost_asio.indexterm.buffered_stream.peek"></a> 31Peek at the 32 incoming data on the stream. Returns the number of bytes read. Throws an 33 exception on failure. 34 </p> 35<pre class="programlisting">template< 36 typename <a class="link" href="../MutableBufferSequence.html" title="Mutable buffer sequence requirements">MutableBufferSequence</a>> 37std::size_t <a class="link" href="peek/overload1.html" title="buffered_stream::peek (1 of 2 overloads)">peek</a>( 38 const MutableBufferSequence & buffers); 39 <span class="emphasis"><em>» <a class="link" href="peek/overload1.html" title="buffered_stream::peek (1 of 2 overloads)">more...</a></em></span> 40</pre> 41<p> 42 Peek at the incoming data on the stream. Returns the number of bytes read, 43 or 0 if an error occurred. 44 </p> 45<pre class="programlisting">template< 46 typename <a class="link" href="../MutableBufferSequence.html" title="Mutable buffer sequence requirements">MutableBufferSequence</a>> 47std::size_t <a class="link" href="peek/overload2.html" title="buffered_stream::peek (2 of 2 overloads)">peek</a>( 48 const MutableBufferSequence & buffers, 49 boost::system::error_code & ec); 50 <span class="emphasis"><em>» <a class="link" href="peek/overload2.html" title="buffered_stream::peek (2 of 2 overloads)">more...</a></em></span> 51</pre> 52</div> 53<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 54<td align="left"></td> 55<td align="right"><div class="copyright-footer">Copyright © 2003-2020 Christopher M. 56 Kohlhoff<p> 57 Distributed under the Boost Software License, Version 1.0. (See accompanying 58 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>) 59 </p> 60</div></td> 61</tr></table> 62<hr> 63<div class="spirit-nav"> 64<a accesskey="p" href="next_layer_type.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../buffered_stream.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="peek/overload1.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> 65</div> 66</body> 67</html> 68
