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 subtract_with_carry_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.subtract_with_carry_hpp" title="Header <boost/random/subtract_with_carry.hpp>"> 10<link rel="prev" href="subtra_1_3_34_5_6_41_1_1_1.html" title="Class template subtract_with_carry_01_engine"> 11<link rel="next" href="taus88.html" title="Type definition taus88"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> 16<td align="center"><a href="../../../../index.html">Home</a></td> 17<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> 18<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 19<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 20<td align="center"><a href="../../../../more/index.htm">More</a></td> 21</tr></table> 22<hr> 23<div class="spirit-nav"> 24<a accesskey="p" href="subtra_1_3_34_5_6_41_1_1_1.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_random/reference.html#header.boost.random.subtract_with_carry_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="taus88.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.random.subtract_with_carry_engine"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Class template subtract_with_carry_engine</span></h2> 30<p>boost::random::subtract_with_carry_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.subtract_with_carry_hpp" title="Header <boost/random/subtract_with_carry.hpp>">boost/random/subtract_with_carry.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> IntType<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="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> s<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> r<span class="special">></span> 36<span class="keyword">class</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_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">IntType</span> <a name="boost.random.subtract_with_carry_engine.result_type"></a><span class="identifier">result_type</span><span class="special">;</span> 40 41 <span class="comment">// <a class="link" href="subtract_with_carry_engine.html#boost.random.subtract_with_carry_engineconstruct-copy-destruct">construct/copy/destruct</a></span> 42 <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_11-bb"><span class="identifier">subtract_with_carry_engine</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 43 <span class="keyword">explicit</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_12-bb"><span class="identifier">subtract_with_carry_engine</span></a><span class="special">(</span><span class="identifier">IntType</span><span class="special">)</span><span class="special">;</span> 44 <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="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_13-bb"><span class="identifier">subtract_with_carry_engine</span></a><span class="special">(</span><span class="identifier">SeedSeq</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 45 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> It<span class="special">></span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_14-bb"><span class="identifier">subtract_with_carry_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> 46 47 <span class="comment">// <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10-bb">public member functions</a></span> 48 <span class="keyword">void</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_1-bb"><span class="identifier">seed</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 49 <span class="keyword">void</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_2-bb"><span class="identifier">seed</span></a><span class="special">(</span><span class="identifier">IntType</span><span class="special">)</span><span class="special">;</span> 50 <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="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_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> 51 <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="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_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> 52 <span class="identifier">result_type</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_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> 53 <span class="keyword">void</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_6-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> 54 <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="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_10_7-bb"><span class="identifier">generate</span></a><span class="special">(</span><span class="identifier">It</span><span class="special">,</span> <span class="identifier">It</span><span class="special">)</span><span class="special">;</span> 55 56 <span class="comment">// <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_15-bb">public static functions</a></span> 57 <span class="keyword">static</span> <span class="identifier">result_type</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_15_1-bb"><span class="identifier">min</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 58 <span class="keyword">static</span> <span class="identifier">result_type</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_15_2-bb"><span class="identifier">max</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 59 60 <span class="comment">// <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_16-bb">friend functions</a></span> 61 <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> 62 <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> 63 <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_16_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> 64 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</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_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> 67 <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_16_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> 68 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 69 <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_16_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="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span><span class="special">,</span> 70 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 71 <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="subtract_with_carry_engine.html#id-1_3_34_5_6_41_1_1_2_16_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="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span><span class="special">,</span> 72 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 73 74 <span class="comment">// public data members</span> 75 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">word_size</span><span class="special">;</span> 76 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">long_lag</span><span class="special">;</span> 77 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">short_lag</span><span class="special">;</span> 78 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">uint32_t</span> <span class="identifier">default_seed</span><span class="special">;</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="keyword">static</span> <span class="keyword">const</span> <span class="identifier">result_type</span> <span class="identifier">modulus</span><span class="special">;</span> 81<span class="special">}</span><span class="special">;</span></pre></div> 82<div class="refsect1"> 83<a name="id-1.3.34.5.6.40.4.4"></a><h2>Description</h2> 84<p>Instantiations of <code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_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> . The algorithm is described in</p> 85<p> </p> 86<div class="blockquote"><blockquote class="blockquote"><p> "A New Class of Random Number Generators", George Marsaglia and Arif Zaman, Annals of Applied Probability, Volume 1, Number 3 (1991), 462-480. </p></blockquote></div> 87<p> </p> 88<div class="refsect2"> 89<a name="id-1.3.34.5.6.40.4.4.4"></a><h3> 90<a name="boost.random.subtract_with_carry_engineconstruct-copy-destruct"></a><code class="computeroutput">subtract_with_carry_engine</code> 91 public 92 construct/copy/destruct</h3> 93<div class="orderedlist"><ol class="orderedlist" type="1"> 94<li class="listitem"> 95<pre class="literallayout"><a name="id-1_3_34_5_6_41_1_1_2_11-bb"></a><span class="identifier">subtract_with_carry_engine</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 96<p>Constructs a new <code class="computeroutput"><code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a></code></code> and seeds it with the default seed. </p> 97</li> 98<li class="listitem"> 99<pre class="literallayout"><span class="keyword">explicit</span> <a name="id-1_3_34_5_6_41_1_1_2_12-bb"></a><span class="identifier">subtract_with_carry_engine</span><span class="special">(</span><span class="identifier">IntType</span> value<span class="special">)</span><span class="special">;</span></pre> 100<p>Constructs a new <code class="computeroutput"><code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a></code></code> and seeds it with <code class="computeroutput">value</code>. </p> 101</li> 102<li class="listitem"> 103<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_41_1_1_2_13-bb"></a><span class="identifier">subtract_with_carry_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> 104<p>Constructs a new <code class="computeroutput"><code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a></code></code> and seeds it with values produced by <code class="computeroutput">seq.generate()</code>. </p> 105</li> 106<li class="listitem"> 107<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_41_1_1_2_14-bb"></a><span class="identifier">subtract_with_carry_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> 108<p>Constructs a new <code class="computeroutput"><code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a></code></code> and seeds it with values from a range. first is updated to point one past the last value consumed. If there are not enough elements in the range to fill the entire state of the generator, throws <code class="computeroutput">std::invalid_argument</code>. </p> 109</li> 110</ol></div> 111</div> 112<div class="refsect2"> 113<a name="id-1.3.34.5.6.40.4.4.5"></a><h3> 114<a name="id-1_3_34_5_6_41_1_1_2_10-bb"></a><code class="computeroutput">subtract_with_carry_engine</code> public member functions</h3> 115<div class="orderedlist"><ol class="orderedlist" type="1"> 116<li class="listitem"> 117<pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_41_1_1_2_10_1-bb"></a><span class="identifier">seed</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 118<p>Seeds the generator with the default seed. </p> 119</li> 120<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_41_1_1_2_10_2-bb"></a><span class="identifier">seed</span><span class="special">(</span><span class="identifier">IntType</span> value<span class="special">)</span><span class="special">;</span></pre></li> 121<li class="listitem"> 122<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_41_1_1_2_10_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> 123<p>Seeds the generator with values produced by <code class="computeroutput">seq.generate()</code>. </p> 124</li> 125<li class="listitem"> 126<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_41_1_1_2_10_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> 127<p>Seeds the generator with values from a range. Updates <code class="computeroutput">first</code> to point one past the last consumed value. If the range does not contain enough elements to fill the entire state of the generator, throws <code class="computeroutput">std::invalid_argument</code>. </p> 128</li> 129<li class="listitem"> 130<pre class="literallayout"><span class="identifier">result_type</span> <a name="id-1_3_34_5_6_41_1_1_2_10_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> 131<p>Returns the next value of the generator. </p> 132</li> 133<li class="listitem"> 134<pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_41_1_1_2_10_6-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> 135<p>Advances the state of the generator by <code class="computeroutput">z</code>. </p> 136</li> 137<li class="listitem"> 138<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_41_1_1_2_10_7-bb"></a><span class="identifier">generate</span><span class="special">(</span><span class="identifier">It</span> first<span class="special">,</span> <span class="identifier">It</span> last<span class="special">)</span><span class="special">;</span></pre> 139<p>Fills a range with random values. </p> 140</li> 141</ol></div> 142</div> 143<div class="refsect2"> 144<a name="id-1.3.34.5.6.40.4.4.6"></a><h3> 145<a name="id-1_3_34_5_6_41_1_1_2_15-bb"></a><code class="computeroutput">subtract_with_carry_engine</code> public static functions</h3> 146<div class="orderedlist"><ol class="orderedlist" type="1"> 147<li class="listitem"> 148<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">result_type</span> <a name="id-1_3_34_5_6_41_1_1_2_15_1-bb"></a><span class="identifier">min</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 149<p>Returns the smallest value that the generator can produce. </p> 150</li> 151<li class="listitem"> 152<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">result_type</span> <a name="id-1_3_34_5_6_41_1_1_2_15_2-bb"></a><span class="identifier">max</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 153<p>Returns the largest value that the generator can produce. </p> 154</li> 155</ol></div> 156</div> 157<div class="refsect2"> 158<a name="id-1.3.34.5.6.40.4.4.7"></a><h3> 159<a name="id-1_3_34_5_6_41_1_1_2_16-bb"></a><code class="computeroutput">subtract_with_carry_engine</code> friend functions</h3> 160<div class="orderedlist"><ol class="orderedlist" type="1"> 161<li class="listitem"> 162<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> 163 <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> 164 <a name="id-1_3_34_5_6_41_1_1_2_16_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> 165 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span> f<span class="special">)</span><span class="special">;</span></pre> 166<p>Writes a <code class="computeroutput"><code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a></code></code> to a <code class="computeroutput">std::ostream</code>. </p> 167</li> 168<li class="listitem"> 169<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> 170 <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> 171 <a name="id-1_3_34_5_6_41_1_1_2_16_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> 172 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span> f<span class="special">)</span><span class="special">;</span></pre> 173<p>Reads a <code class="computeroutput"><code class="computeroutput"><a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a></code></code> from a <code class="computeroutput">std::istream</code>. </p> 174</li> 175<li class="listitem"> 176<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="id-1_3_34_5_6_41_1_1_2_16_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="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span> x<span class="special">,</span> 177 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span> y<span class="special">)</span><span class="special">;</span></pre> 178<p>Returns true if the two generators will produce identical sequences of values. </p> 179</li> 180<li class="listitem"> 181<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="id-1_3_34_5_6_41_1_1_2_16_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="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span> lhs<span class="special">,</span> 182 <span class="keyword">const</span> <a class="link" href="subtract_with_carry_engine.html" title="Class template subtract_with_carry_engine">subtract_with_carry_engine</a> <span class="special">&</span> rhs<span class="special">)</span><span class="special">;</span></pre> 183<p>Returns true if the two generators will produce different sequences of values. </p> 184</li> 185</ol></div> 186</div> 187</div> 188</div> 189<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 190<td align="left"></td> 191<td align="right"><div class="copyright-footer">Copyright © 2000-2005 Jens Maurer<br>Copyright © 2009, 2010 Steven Watanabe<p> 192 Distributed under the Boost Software License, Version 1.0. (See accompanying 193 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>) 194 </p> 195</div></td> 196</tr></table> 197<hr> 198<div class="spirit-nav"> 199<a accesskey="p" href="subtra_1_3_34_5_6_41_1_1_1.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_random/reference.html#header.boost.random.subtract_with_carry_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="taus88.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 200</div> 201</body> 202</html> 203
