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<div class="refentry">
<a name="boost.random.seed_seq"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class seed_seq</span></h2>
<p>boost::random::seed_seq</p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<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.seed_seq_hpp" title="Header <boost/random/seed_seq.hpp>">boost/random/seed_seq.hpp</a>>
</span>
<span class="keyword">class</span> <a class="link" href="seed_seq.html" title="Class seed_seq">seed_seq</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">uint_least32_t</span> <a name="boost.random.seed_seq.result_type"></a><span class="identifier">result_type</span><span class="special">;</span>
<span class="comment">// <a class="link" href="seed_seq.html#boost.random.seed_seqconstruct-copy-destruct">construct/copy/destruct</a></span>
<a class="link" href="seed_seq.html#idm45507036194560-bb"><span class="identifier">seed_seq</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <a class="link" href="seed_seq.html#idm45507036193280-bb"><span class="identifier">seed_seq</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Iter<span class="special">></span> <a class="link" href="seed_seq.html#idm45507036191328-bb"><span class="identifier">seed_seq</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>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Range<span class="special">></span> <span class="keyword">explicit</span> <a class="link" href="seed_seq.html#idm45507036188768-bb"><span class="identifier">seed_seq</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Range</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="seed_seq.html#idm45507152091856-bb">public member functions</a></span>
<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="seed_seq.html#idm45507152091408-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="keyword">const</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="seed_seq.html#idm45507152087776-bb"><span class="identifier">size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<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="seed_seq.html#idm45507152086496-bb"><span class="identifier">param</span></a><span class="special">(</span><span class="identifier">Iter</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idm45555147222800"></a><h2>Description</h2>
<p>The class <code class="computeroutput"><a class="link" href="seed_seq.html" title="Class seed_seq">seed_seq</a></code> stores a sequence of 32-bit words for seeding 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> . These words will be combined to fill the entire state of the generator. </p>
<div class="refsect2">
<a name="idm45555147219744"></a><h3>
<a name="boost.random.seed_seqconstruct-copy-destruct"></a><code class="computeroutput">seed_seq</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><a name="idm45507036194560-bb"></a><span class="identifier">seed_seq</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p>Initializes a <code class="computeroutput"><a class="link" href="seed_seq.html" title="Class seed_seq">seed_seq</a></code> to hold an empty sequence. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <a name="idm45507036193280-bb"></a><span class="identifier">seed_seq</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> il<span class="special">)</span><span class="special">;</span></pre>
<p>Initializes the sequence from an initializer_list. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Iter<span class="special">></span> <a name="idm45507036191328-bb"></a><span class="identifier">seed_seq</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>
<p>Initializes the sequence from an iterator range. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Range<span class="special">></span> <span class="keyword">explicit</span> <a name="idm45507036188768-bb"></a><span class="identifier">seed_seq</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Range</span> <span class="special">&</span> range<span class="special">)</span><span class="special">;</span></pre>
<p>Initializes the sequence from Boost.Range range. </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idm45555147183088"></a><h3>
<a name="idm45507152091856-bb"></a><code class="computeroutput">seed_seq</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<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="idm45507152091408-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="keyword">const</span><span class="special">;</span></pre>
<p>Fills a range with 32-bit values based on the stored sequence.</p>
<p>Requires: Iter must be a Random Access Iterator whose value type is an unsigned integral type at least 32 bits wide. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="idm45507152087776-bb"></a><span class="identifier">size</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p>Returns the size of the sequence. </p>
</li>
<li class="listitem">
<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="idm45507152086496-bb"></a><span class="identifier">param</span><span class="special">(</span><span class="identifier">Iter</span> out<span class="special">)</span><span class="special">;</span></pre>
<p>Writes the stored sequence to iter. </p>
</li>
</ol></div>
</div>
</div>
</div>
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<td align="right"><div class="copyright-footer">Copyright © 2000-2005 Jens Maurer<br>Copyright © 2009, 2010 Steven Watanabe<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
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