1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>zlib::deflate_upper_bound</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="../ref.html" title="This Page Intentionally Left Blank 2/2"> 9<link rel="prev" href="boost__beast__zlib__uInt.html" title="zlib::uInt"> 10<link rel="next" href="../release_notes.html" title="Release Notes"> 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="boost__beast__zlib__uInt.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../ref.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="../release_notes.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="beast.ref.boost__beast__zlib__deflate_upper_bound"></a><a class="link" href="boost__beast__zlib__deflate_upper_bound.html" title="zlib::deflate_upper_bound">zlib::deflate_upper_bound</a> 28</h4></div></div></div> 29<p> 30 <a class="indexterm" name="idm46057501638848"></a> 31 </p> 32<p> 33 Returns the upper limit on the size of a compressed block. 34 </p> 35<h5> 36<a name="beast.ref.boost__beast__zlib__deflate_upper_bound.h0"></a> 37 <span class="phrase"><a name="beast.ref.boost__beast__zlib__deflate_upper_bound.synopsis"></a></span><a class="link" href="boost__beast__zlib__deflate_upper_bound.html#beast.ref.boost__beast__zlib__deflate_upper_bound.synopsis">Synopsis</a> 38 </h5> 39<p> 40 Defined in header <code class="literal"><<a href="../../../../../../boost/beast/zlib/deflate_stream.hpp" target="_top">boost/beast/zlib/deflate_stream.hpp</a>></code> 41 </p> 42<pre class="programlisting"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> 43<span class="identifier">deflate_upper_bound</span><span class="special">(</span> 44 <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">bytes</span><span class="special">);</span> 45</pre> 46<h5> 47<a name="beast.ref.boost__beast__zlib__deflate_upper_bound.h1"></a> 48 <span class="phrase"><a name="beast.ref.boost__beast__zlib__deflate_upper_bound.description"></a></span><a class="link" href="boost__beast__zlib__deflate_upper_bound.html#beast.ref.boost__beast__zlib__deflate_upper_bound.description">Description</a> 49 </h5> 50<p> 51 This function makes a conservative estimate of the maximum number of bytes 52 needed to store the result of compressing a block of data. 53 </p> 54<h5> 55<a name="beast.ref.boost__beast__zlib__deflate_upper_bound.h2"></a> 56 <span class="phrase"><a name="beast.ref.boost__beast__zlib__deflate_upper_bound.parameters"></a></span><a class="link" href="boost__beast__zlib__deflate_upper_bound.html#beast.ref.boost__beast__zlib__deflate_upper_bound.parameters">Parameters</a> 57 </h5> 58<div class="informaltable"><table class="table"> 59<colgroup> 60<col> 61<col> 62</colgroup> 63<thead><tr> 64<th> 65 <p> 66 Name 67 </p> 68 </th> 69<th> 70 <p> 71 Description 72 </p> 73 </th> 74</tr></thead> 75<tbody><tr> 76<td> 77 <p> 78 <code class="computeroutput"><span class="identifier">bytes</span></code> 79 </p> 80 </td> 81<td> 82 <p> 83 The size of the uncompressed data. 84 </p> 85 </td> 86</tr></tbody> 87</table></div> 88<h5> 89<a name="beast.ref.boost__beast__zlib__deflate_upper_bound.h3"></a> 90 <span class="phrase"><a name="beast.ref.boost__beast__zlib__deflate_upper_bound.return_value"></a></span><a class="link" href="boost__beast__zlib__deflate_upper_bound.html#beast.ref.boost__beast__zlib__deflate_upper_bound.return_value">Return 91 Value</a> 92 </h5> 93<p> 94 The maximum number of resulting compressed bytes. 95 </p> 96</div> 97<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 98<td align="left"></td> 99<td align="right"><div class="copyright-footer">Copyright © 2016-2019 Vinnie 100 Falco<p> 101 Distributed under the Boost Software License, Version 1.0. (See accompanying 102 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>) 103 </p> 104</div></td> 105</tr></table> 106<hr> 107<div class="spirit-nav"> 108<a accesskey="p" href="boost__beast__zlib__uInt.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../ref.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="../release_notes.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 109</div> 110</body> 111</html> 112