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<strong class="selflink"><tt>std::uniform_int_distribution</tt></strong><div class="t-navbar-menu"><div><div>
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<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="uniform_int_distribution/max.html" title="cpp/numeric/random/uniform int distribution/max">uniform_int_distribution::max</a></td></tr></table>
</td></tr>
<tr class="t-sb-list-h1"><td colspan="5">  Non-member functions
</td></tr>
<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="uniform_int_distribution/operator_cmp.html" title="cpp/numeric/random/uniform int distribution/operator cmp">operator==<br>operator!=</a></td></tr></table>
</td></tr>
<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="uniform_int_distribution/operator_ltltgtgt.html" title="cpp/numeric/random/uniform int distribution/operator ltltgtgt">operator&lt;&lt;<br>operator&gt;&gt;</a></td></tr></table>
</td></tr>
</table>
</div></div></div>
</div>
<div class="t-navbar-sep"> </div>
</div>
<table class="t-ddcl-list-begin">
<tr class="t-ddcl-list-header">
<td> <div>Defined in header <tt>&lt;random&gt;</tt>
 </div>
</td>
<td></td>
<td></td>
</tr>
<tr><td colspan="3" class="t-ddcl-list-sep"></td></tr>
<tr class="t-ddcl-list-item">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> IntType <span class="sy1">=</span> <span class="kw4">int</span> <span class="sy1">&gt;</span><br><span class="kw1">class</span> uniform_int_distribution<span class="sy4">;</span></span></div>
</td>
<td class="t-ddcl-list-item-nopad">  </td>
<td> <span class="t-mark">(since C++11)</span> </td>
</tr>
<tr><td colspan="3" class="t-ddcl-list-sep"></td></tr>
</table>
<p>Produces random integer values <span class="texhtml" style="white-space: nowrap;">i</span>, uniformly distributed on the closed interval <tt>[a, b]</tt>, that is, distributed according to the discrete probability function 
</p>
<dl><dd>
<span class="texhtml" style="white-space: nowrap;">P(i|a,b) = <span class="t-mfrac"><table>
<tr><td>1</td></tr>
<tr><td>b − a + 1</td></tr>
</table></span></span>.
</dd></dl>
<table id="toc" class="toc"><tr><td>
<div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="#Member_types"><span class="tocnumber">1</span> <span class="toctext">Member types</span></a></li>
<li class="toclevel-1 tocsection-2">
<a href="#Member_functions"><span class="tocnumber">2</span> <span class="toctext">Member functions</span></a>
<ul>
<li class="toclevel-2"><a href="#Generation"><span class="tocnumber">2.1</span> <span class="toctext">Generation</span></a></li>
<li class="toclevel-2"><a href="#Characteristics"><span class="tocnumber">2.2</span> <span class="toctext">Characteristics</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-3"><a href="#Non-member_functions"><span class="tocnumber">3</span> <span class="toctext">Non-member functions</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="#Example"><span class="tocnumber">4</span> <span class="toctext">Example</span></a></li>
</ul>
</td></tr></table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric/random/uniform_int_distribution&amp;action=edit&amp;section=1" title="Edit section: Member types">edit</a>]</span> <span class="mw-headline" id="Member_types">Member types</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-hitem">
<td>  Member type
</td>
<td>  Definition
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>result_type</tt>
</td>
<td>  <span class="mw-geshi cpp source-cpp">IntType</span>
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>param_type</tt>
</td>
<td>  the type of the parameter set, unspecified
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric/random/uniform_int_distribution&amp;action=edit&amp;section=2" title="Edit section: Member functions">edit</a>]</span> <span class="mw-headline" id="Member_functions">Member functions</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div t-dcl-member-nobold-div"><div><a href="uniform_int_distribution/uniform_int_distribution.html" title="cpp/numeric/random/uniform int distribution/uniform int distribution"> (constructor)</a></div></div>
</td>
<td>  constructs new distribution <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/reset.html" title="cpp/numeric/random/uniform int distribution/reset"> reset</a></div></div>
</td>
<td>   resets the internal state of the distribution  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Generation">  Generation </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/operator().html" title="cpp/numeric/random/uniform int distribution/operator()"> operator()</a></div></div>
</td>
<td>   generates the next random number in the distribution  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Characteristics">  Characteristics </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/a.html" title="cpp/numeric/random/uniform int distribution/a"> a</a></div></div>
</td>
<td>   returns the <i>a</i> distribution parameter (minimum value) <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/b.html" title="cpp/numeric/random/uniform int distribution/b"> b</a></div></div>
</td>
<td>   returns the <i>b</i> distribution parameter (maximum value) <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/param.html" title="cpp/numeric/random/uniform int distribution/param"> param</a></div></div>
</td>
<td>   gets or sets the distribution parameter object  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/min.html" title="cpp/numeric/random/uniform int distribution/min"> min</a></div></div>
</td>
<td>   returns the minimum potentially generated value <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/max.html" title="cpp/numeric/random/uniform int distribution/max"> max</a></div></div>
</td>
<td>   returns the maximum potentially generated value  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric/random/uniform_int_distribution&amp;action=edit&amp;section=3" title="Edit section: Non-member functions">edit</a>]</span> <span class="mw-headline" id="Non-member_functions">Non-member functions</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/operator_cmp.html" title="cpp/numeric/random/uniform int distribution/operator cmp"> operator==<br>operator!=</a></div></div>
</td>
<td>    compares two distribution objects  <br><span class="t-mark">(function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="uniform_int_distribution/operator_ltltgtgt.html" title="cpp/numeric/random/uniform int distribution/operator ltltgtgt"> operator&lt;&lt;<br>operator&gt;&gt;</a></div></div>
</td>
<td>   performs stream input and output on pseudo-random number distribution  <br><span class="t-mark">(function)</span> 
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/numeric/random/uniform_int_distribution&amp;action=edit&amp;section=4" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span>
</h3>
<p> This program simulates throwing 6-sided dice.
 </p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include &lt;random&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
    std<span class="sy4">::</span><span class="me2">random_device</span> rd<span class="sy4">;</span>
    <a href="mersenne_twister_engine.html"><span class="kw1178">std::<span class="me2">mt19937</span></span></a> gen<span class="br0">(</span>rd<span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
    <a href="uniform_int_distribution.html"><span class="kw1190">std::<span class="me2">uniform_int_distribution</span></span></a><span class="sy1">&lt;&gt;</span> dis<span class="br0">(</span><span class="nu0">1</span>, <span class="nu0">6</span><span class="br0">)</span><span class="sy4">;</span>
    <span class="kw1">for</span><span class="br0">(</span><span class="kw4">int</span> n<span class="sy1">=</span><span class="nu0">0</span><span class="sy4">;</span> n<span class="sy1">&lt;</span><span class="nu0">10</span><span class="sy4">;</span> <span class="sy2">++</span>n<span class="br0">)</span>
        <a href="../../io/basic_ostream.html"><span class="kw1418">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> dis<span class="br0">(</span>gen<span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">' '</span><span class="sy4">;</span>
    <a href="../../io/basic_ostream.html"><span class="kw1418">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p>Output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">1 1 6 5 2 2 5 5 6 2</pre></div></div>

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