1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Class template independent_bits_engine</title> 6<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../../boost_random/reference.html#header.boost.random.independent_bits_hpp" title="Header <boost/random/independent_bits.hpp>"> 10<link rel="prev" href="hypere_1_3_34_5_6_18_1_1_1/param_type.html" title="Class param_type"> 11<link rel="next" href="invers_1_3_34_5_6_20_1_1_1.html" title="Class template inversive_congruential_engine"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td 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src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.random.independent_bits_engine"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Class template independent_bits_engine</span></h2> 30<p>boost::random::independent_bits_engine</p> 31</div> 32<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 33<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../boost_random/reference.html#header.boost.random.independent_bits_hpp" title="Header <boost/random/independent_bits.hpp>">boost/random/independent_bits.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Engine<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> w<span class="special">,</span> <span class="keyword">typename</span> UIntType<span class="special">></span> 36<span class="keyword">class</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">{</span> 37<span class="keyword">public</span><span class="special">:</span> 38 <span class="comment">// types</span> 39 <span class="keyword">typedef</span> <span class="identifier">Engine</span> <a name="boost.random.independent_bits_engine.base_type"></a><span class="identifier">base_type</span><span class="special">;</span> 40 <span class="keyword">typedef</span> <span class="identifier">UIntType</span> <a name="boost.random.independent_bits_engine.result_type"></a><span class="identifier">result_type</span><span class="special">;</span> 41 <span class="keyword">typedef</span> <span class="identifier">Engine</span><span class="special">::</span><span class="identifier">result_type</span> <a name="boost.random.independent_bits_engine.base_result_type"></a><span class="identifier">base_result_type</span><span class="special">;</span> 42 43 <span class="comment">// <a class="link" href="independent_bits_engine.html#boost.random.independent_bits_engineconstruct-copy-destruct">construct/copy/destruct</a></span> 44 <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_9-bb"><span class="identifier">independent_bits_engine</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 45 <span class="keyword">explicit</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_10-bb"><span class="identifier">independent_bits_engine</span></a><span class="special">(</span><span class="identifier">base_result_type</span><span class="special">)</span><span class="special">;</span> 46 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> SeedSeq<span class="special">></span> <span class="keyword">explicit</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_11-bb"><span class="identifier">independent_bits_engine</span></a><span class="special">(</span><span class="identifier">SeedSeq</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 47 <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_12-bb"><span class="identifier">independent_bits_engine</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">base_type</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 48 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_13-bb"><span class="identifier">independent_bits_engine</span></a><span class="special">(</span><span class="identifier">It</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">It</span><span class="special">)</span><span class="special">;</span> 49 50 <span class="comment">// <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_7-bb">public static functions</a></span> 51 <span class="keyword">static</span> <span class="identifier">result_type</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_7_1-bb"><span class="identifier">min</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 52 <span class="keyword">static</span> <span class="identifier">result_type</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_7_2-bb"><span class="identifier">max</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 53 54 <span class="comment">// <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8-bb">public member functions</a></span> 55 <span class="keyword">void</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_1-bb"><span class="identifier">seed</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 56 <span class="keyword">void</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_2-bb"><span class="identifier">seed</span></a><span class="special">(</span><span class="identifier">base_result_type</span><span class="special">)</span><span class="special">;</span> 57 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> SeedSeq<span class="special">></span> <span class="keyword">void</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_3-bb"><span class="identifier">seed</span></a><span class="special">(</span><span class="identifier">SeedSeq</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 58 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <span class="keyword">void</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_4-bb"><span class="identifier">seed</span></a><span class="special">(</span><span class="identifier">It</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">It</span><span class="special">)</span><span class="special">;</span> 59 <span class="identifier">result_type</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_5-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 60 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Iter<span class="special">></span> <span class="keyword">void</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_6-bb"><span class="identifier">generate</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">,</span> <span class="identifier">Iter</span><span class="special">)</span><span class="special">;</span> 61 <span class="keyword">void</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_7-bb"><span class="identifier">discard</span></a><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uintmax_t</span><span class="special">)</span><span class="special">;</span> 62 <span class="keyword">const</span> <span class="identifier">base_type</span> <span class="special">&</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_8_8-bb"><span class="identifier">base</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 63 64 <span class="comment">// <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_14-bb">friend functions</a></span> 65 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 66 <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 67 <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_14_1-bb"><span class="keyword">operator</span><span class="special"><<</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> 68 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 69 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 70 <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 71 <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_14_2-bb"><span class="keyword">operator</span><span class="special">>></span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> 72 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 73 <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_14_3-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span><span class="special">,</span> 74 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 75 <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="independent_bits_engine.html#id-1_3_34_5_6_19_1_1_1_14_4-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span><span class="special">,</span> 76 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 77 78 <span class="comment">// public data members</span> 79 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">has_fixed_range</span><span class="special">;</span> 80<span class="special">}</span><span class="special">;</span></pre></div> 81<div class="refsect1"> 82<a name="id-1.3.34.5.6.18.3.4"></a><h2>Description</h2> 83<p>An instantiation of class template <code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code> model a <a class="link" href="../../boost_random/reference.html#boost_random.reference.concepts.pseudo_random_number_generator" title="Pseudo-Random Number Generator">pseudo-random number generator</a> . It generates random numbers distributed between [0, 2^w) by combining one or more invocations of the base engine.</p> 84<p>Requires: 0 < w <= std::numeric_limits<UIntType>::digits </p> 85<div class="refsect2"> 86<a name="id-1.3.34.5.6.18.3.4.4"></a><h3> 87<a name="boost.random.independent_bits_engineconstruct-copy-destruct"></a><code class="computeroutput">independent_bits_engine</code> 88 public 89 construct/copy/destruct</h3> 90<div class="orderedlist"><ol class="orderedlist" type="1"> 91<li class="listitem"> 92<pre class="literallayout"><a name="id-1_3_34_5_6_19_1_1_1_9-bb"></a><span class="identifier">independent_bits_engine</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 93<p>Constructs an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code> using the default constructor of the base generator. </p> 94</li> 95<li class="listitem"> 96<pre class="literallayout"><span class="keyword">explicit</span> <a name="id-1_3_34_5_6_19_1_1_1_10-bb"></a><span class="identifier">independent_bits_engine</span><span class="special">(</span><span class="identifier">base_result_type</span> seed<span class="special">)</span><span class="special">;</span></pre> 97<p>Constructs an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code>, using seed as the constructor argument for both base generators. </p> 98</li> 99<li class="listitem"> 100<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> SeedSeq<span class="special">></span> <span class="keyword">explicit</span> <a name="id-1_3_34_5_6_19_1_1_1_11-bb"></a><span class="identifier">independent_bits_engine</span><span class="special">(</span><span class="identifier">SeedSeq</span> <span class="special">&</span> seq<span class="special">)</span><span class="special">;</span></pre> 101<p>Constructs an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code>, using seq as the constructor argument for the base generator. </p> 102</li> 103<li class="listitem"> 104<pre class="literallayout"><a name="id-1_3_34_5_6_19_1_1_1_12-bb"></a><span class="identifier">independent_bits_engine</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">base_type</span> <span class="special">&</span> base_arg<span class="special">)</span><span class="special">;</span></pre> 105<p>Constructs an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code> by copying <code class="computeroutput">base</code>. </p> 106</li> 107<li class="listitem"> 108<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <a name="id-1_3_34_5_6_19_1_1_1_13-bb"></a><span class="identifier">independent_bits_engine</span><span class="special">(</span><span class="identifier">It</span> <span class="special">&</span> first<span class="special">,</span> <span class="identifier">It</span> last<span class="special">)</span><span class="special">;</span></pre> 109<p>Contructs an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code> with values from the range defined by the input iterators first and last. first will be modified to point to the element after the last one used.</p> 110<p>Throws: <code class="computeroutput">std::invalid_argument</code> if the input range is too small.</p> 111<p>Exception Safety: Basic </p> 112</li> 113</ol></div> 114</div> 115<div class="refsect2"> 116<a name="id-1.3.34.5.6.18.3.4.5"></a><h3> 117<a name="id-1_3_34_5_6_19_1_1_1_7-bb"></a><code class="computeroutput">independent_bits_engine</code> public static functions</h3> 118<div class="orderedlist"><ol class="orderedlist" type="1"> 119<li class="listitem"> 120<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">result_type</span> <a name="id-1_3_34_5_6_19_1_1_1_7_1-bb"></a><span class="identifier">min</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 121<p>Returns the smallest value that the generator can produce. </p> 122</li> 123<li class="listitem"> 124<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">result_type</span> <a name="id-1_3_34_5_6_19_1_1_1_7_2-bb"></a><span class="identifier">max</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 125<p>Returns the largest value that the generator can produce. </p> 126</li> 127</ol></div> 128</div> 129<div class="refsect2"> 130<a name="id-1.3.34.5.6.18.3.4.6"></a><h3> 131<a name="id-1_3_34_5_6_19_1_1_1_8-bb"></a><code class="computeroutput">independent_bits_engine</code> public member functions</h3> 132<div class="orderedlist"><ol class="orderedlist" type="1"> 133<li class="listitem"> 134<pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_19_1_1_1_8_1-bb"></a><span class="identifier">seed</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 135<p>Seeds an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code> using the default seed of the base generator. </p> 136</li> 137<li class="listitem"> 138<pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_19_1_1_1_8_2-bb"></a><span class="identifier">seed</span><span class="special">(</span><span class="identifier">base_result_type</span> seed<span class="special">)</span><span class="special">;</span></pre> 139<p>Seeds an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code>, using <code class="computeroutput">seed</code> as the seed for the base generator. </p> 140</li> 141<li class="listitem"> 142<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> SeedSeq<span class="special">></span> <span class="keyword">void</span> <a name="id-1_3_34_5_6_19_1_1_1_8_3-bb"></a><span class="identifier">seed</span><span class="special">(</span><span class="identifier">SeedSeq</span> <span class="special">&</span> seq<span class="special">)</span><span class="special">;</span></pre> 143<p>Seeds an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code>, using <code class="computeroutput">seq</code> to seed the base generator. </p> 144</li> 145<li class="listitem"> 146<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <span class="keyword">void</span> <a name="id-1_3_34_5_6_19_1_1_1_8_4-bb"></a><span class="identifier">seed</span><span class="special">(</span><span class="identifier">It</span> <span class="special">&</span> first<span class="special">,</span> <span class="identifier">It</span> last<span class="special">)</span><span class="special">;</span></pre> 147<p>Seeds an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code> with values from the range defined by the input iterators first and last. first will be modified to point to the element after the last one used.</p> 148<p>Throws: <code class="computeroutput">std::invalid_argument</code> if the input range is too small.</p> 149<p>Exception Safety: Basic </p> 150</li> 151<li class="listitem"> 152<pre class="literallayout"><span class="identifier">result_type</span> <a name="id-1_3_34_5_6_19_1_1_1_8_5-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 153<p>Returns the next value of the generator. </p> 154</li> 155<li class="listitem"> 156<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Iter<span class="special">></span> <span class="keyword">void</span> <a name="id-1_3_34_5_6_19_1_1_1_8_6-bb"></a><span class="identifier">generate</span><span class="special">(</span><span class="identifier">Iter</span> first<span class="special">,</span> <span class="identifier">Iter</span> last<span class="special">)</span><span class="special">;</span></pre> 157<p>Fills a range with random values </p> 158</li> 159<li class="listitem"> 160<pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_19_1_1_1_8_7-bb"></a><span class="identifier">discard</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">uintmax_t</span> z<span class="special">)</span><span class="special">;</span></pre> 161<p>Advances the state of the generator by <code class="computeroutput">z</code>. </p> 162</li> 163<li class="listitem"><pre class="literallayout"><span class="keyword">const</span> <span class="identifier">base_type</span> <span class="special">&</span> <a name="id-1_3_34_5_6_19_1_1_1_8_8-bb"></a><span class="identifier">base</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 164</ol></div> 165</div> 166<div class="refsect2"> 167<a name="id-1.3.34.5.6.18.3.4.7"></a><h3> 168<a name="id-1_3_34_5_6_19_1_1_1_14-bb"></a><code class="computeroutput">independent_bits_engine</code> friend functions</h3> 169<div class="orderedlist"><ol class="orderedlist" type="1"> 170<li class="listitem"> 171<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 172 <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 173 <a name="id-1_3_34_5_6_19_1_1_1_14_1-bb"></a><span class="keyword">operator</span><span class="special"><<</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> os<span class="special">,</span> 174 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span> r<span class="special">)</span><span class="special">;</span></pre> 175<p>Writes the textual representation if the generator to a <code class="computeroutput">std::ostream</code>. The textual representation of the engine is the textual representation of the base engine. </p> 176</li> 177<li class="listitem"> 178<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> Traits<span class="special">></span> 179 <span class="keyword">friend</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> 180 <a name="id-1_3_34_5_6_19_1_1_1_14_2-bb"></a><span class="keyword">operator</span><span class="special">>></span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">Traits</span> <span class="special">></span> <span class="special">&</span> is<span class="special">,</span> 181 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span> r<span class="special">)</span><span class="special">;</span></pre> 182<p>Reads the state of an <code class="computeroutput"><code class="computeroutput"><a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a></code></code> from a <code class="computeroutput">std::istream</code>. </p> 183</li> 184<li class="listitem"> 185<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="id-1_3_34_5_6_19_1_1_1_14_3-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span> x<span class="special">,</span> 186 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span> y<span class="special">)</span><span class="special">;</span></pre> 187<p>Returns: true iff the two <code class="computeroutput">independent_bits_engines</code> will produce the same sequence of values. </p> 188</li> 189<li class="listitem"> 190<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="id-1_3_34_5_6_19_1_1_1_14_4-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span> lhs<span class="special">,</span> 191 <span class="keyword">const</span> <a class="link" href="independent_bits_engine.html" title="Class template independent_bits_engine">independent_bits_engine</a> <span class="special">&</span> rhs<span class="special">)</span><span class="special">;</span></pre> 192<p>Returns: true iff the two <code class="computeroutput">independent_bits_engines</code> will produce different sequences of values. </p> 193</li> 194</ol></div> 195</div> 196</div> 197</div> 198<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 199<td align="left"></td> 200<td align="right"><div class="copyright-footer">Copyright © 2000-2005 Jens Maurer<br>Copyright © 2009, 2010 Steven Watanabe<p> 201 Distributed under the Boost Software License, Version 1.0. (See accompanying 202 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>) 203 </p> 204</div></td> 205</tr></table> 206<hr> 207<div class="spirit-nav"> 208<a accesskey="p" href="hypere_1_3_34_5_6_18_1_1_1/param_type.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_random/reference.html#header.boost.random.independent_bits_hpp"><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="invers_1_3_34_5_6_20_1_1_1.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 209</div> 210</body> 211</html> 212
