1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Class template uniform_real_distribution</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.Compute"> 8<link rel="up" href="../../boost_compute/reference.html#header.boost.compute.random.uniform_real_distribution_hpp" title="Header <boost/compute/random/uniform_real_distribution.hpp>"> 9<link rel="prev" href="uniform_int_distribution.html" title="Class template uniform_int_distribution"> 10<link rel="next" href="is_device_iterator.html" title="Struct template is_device_iterator"> 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 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</p> 30</div> 31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 32<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_compute/reference.html#header.boost.compute.random.uniform_real_distribution_hpp" title="Header <boost/compute/random/uniform_real_distribution.hpp>">boost/compute/random/uniform_real_distribution.hpp</a>> 33 34</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> RealType <span class="special">=</span> <span class="keyword">float</span><span class="special">></span> 35<span class="keyword">class</span> <a class="link" href="uniform_real_distribution.html" title="Class template uniform_real_distribution">uniform_real_distribution</a> <span class="special">{</span> 36<span class="keyword">public</span><span class="special">:</span> 37 <span class="comment">// types</span> 38 <span class="keyword">typedef</span> <span class="identifier">RealType</span> <a name="boost.compute.uniform_real_distribution.result_type"></a><span class="identifier">result_type</span><span class="special">;</span> 39 40 <span class="comment">// <a class="link" href="uniform_real_distribution.html#boost.compute.uniform_real_distributionconstruct-copy-destruct">construct/copy/destruct</a></span> 41 <a class="link" href="uniform_real_distribution.html#idm45549384230640-bb"><span class="identifier">uniform_real_distribution</span></a><span class="special">(</span><span class="identifier">RealType</span> <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">RealType</span> <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="identifier">f</span><span class="special">)</span><span class="special">;</span> 42 <a class="link" href="uniform_real_distribution.html#idm45549384227040-bb"><span class="special">~</span><span class="identifier">uniform_real_distribution</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 43 44 <span class="comment">// <a class="link" href="uniform_real_distribution.html#idm45549384240624-bb">public member functions</a></span> 45 <span class="identifier">result_type</span> <a class="link" href="uniform_real_distribution.html#idm45549384240064-bb"><span class="identifier">a</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 46 <span class="identifier">result_type</span> <a class="link" href="uniform_real_distribution.html#idm45549384238624-bb"><span class="identifier">b</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 47 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OutputIterator<span class="special">,</span> <span class="keyword">typename</span> Generator<span class="special">></span> 48 <span class="keyword">void</span> <a class="link" href="uniform_real_distribution.html#idm45549384237184-bb"><span class="identifier">generate</span></a><span class="special">(</span><span class="identifier">OutputIterator</span><span class="special">,</span> <span class="identifier">OutputIterator</span><span class="special">,</span> <span class="identifier">Generator</span> <span class="special">&</span><span class="special">,</span> 49 <span class="identifier">command_queue</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 50 51 <span class="comment">// <a class="link" href="uniform_real_distribution.html#idm45549384225696-bb">private member functions</a></span> 52 <a class="link" href="uniform_real_distribution.html#idm45549384225120-bb"><span class="identifier">BOOST_STATIC_ASSERT_MSG</span></a><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_floating_point</span><span class="special"><</span> <span class="identifier">RealType</span> <span class="special">></span><span class="special">::</span><span class="identifier">value</span><span class="special">,</span> 53 <span class="string">"Template argument must be a floating point type"</span><span class="special">)</span><span class="special">;</span> 54<span class="special">}</span><span class="special">;</span></pre></div> 55<div class="refsect1"> 56<a name="idm45849504189888"></a><h2>Description</h2> 57<p>The following example shows how to setup a uniform real distribution to produce random <code class="computeroutput">float</code> values between <code class="computeroutput">1</code> and <code class="computeroutput">100</code>.</p> 58<pre class="programlisting"></pre> 59<p> </p> 60<p><span class="bold"><strong>See Also:</strong></span></p> 61<p>default_random_engine, <a class="link" href="normal_distribution.html" title="Class template normal_distribution">normal_distribution</a> </p> 62<p> 63</p> 64<p> 65</p> 66<div class="refsect2"> 67<a name="idm45849504184272"></a><h3> 68<a name="boost.compute.uniform_real_distributionconstruct-copy-destruct"></a><code class="computeroutput">uniform_real_distribution</code> 69 public 70 construct/copy/destruct</h3> 71<div class="orderedlist"><ol class="orderedlist" type="1"> 72<li class="listitem"> 73<pre class="literallayout"><a name="idm45549384230640-bb"></a><span class="identifier">uniform_real_distribution</span><span class="special">(</span><span class="identifier">RealType</span> a <span class="special">=</span> <span class="number">0</span><span class="special">.</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">RealType</span> b <span class="special">=</span> <span class="number">1</span><span class="special">.</span><span class="identifier">f</span><span class="special">)</span><span class="special">;</span></pre> 74<p>Creates a new uniform distribution producing numbers in the range [<code class="computeroutput">a</code>, <code class="computeroutput">b</code>). Requires a < b </p> 75</li> 76<li class="listitem"> 77<pre class="literallayout"><a name="idm45549384227040-bb"></a><span class="special">~</span><span class="identifier">uniform_real_distribution</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Destroys the <code class="computeroutput"><a class="link" href="uniform_real_distribution.html" title="Class template uniform_real_distribution">uniform_real_distribution</a></code> object. </li> 78</ol></div> 79</div> 80<div class="refsect2"> 81<a name="idm45849504164624"></a><h3> 82<a name="idm45549384240624-bb"></a><code class="computeroutput">uniform_real_distribution</code> public member functions</h3> 83<div class="orderedlist"><ol class="orderedlist" type="1"> 84<li class="listitem"> 85<pre class="literallayout"><span class="identifier">result_type</span> <a name="idm45549384240064-bb"></a><span class="identifier">a</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Returns the minimum value of the distribution. </li> 86<li class="listitem"> 87<pre class="literallayout"><span class="identifier">result_type</span> <a name="idm45549384238624-bb"></a><span class="identifier">b</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Returns the maximum value of the distribution. </li> 88<li class="listitem"> 89<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OutputIterator<span class="special">,</span> <span class="keyword">typename</span> Generator<span class="special">></span> 90 <span class="keyword">void</span> <a name="idm45549384237184-bb"></a><span class="identifier">generate</span><span class="special">(</span><span class="identifier">OutputIterator</span> first<span class="special">,</span> <span class="identifier">OutputIterator</span> last<span class="special">,</span> 91 <span class="identifier">Generator</span> <span class="special">&</span> generator<span class="special">,</span> <span class="identifier">command_queue</span> <span class="special">&</span> queue<span class="special">)</span><span class="special">;</span></pre> 92<p>Generates uniformly distributed floating-point numbers and stores them to the range [<code class="computeroutput">first</code>, <code class="computeroutput">last</code>). </p> 93</li> 94</ol></div> 95</div> 96<div class="refsect2"> 97<a name="idm45849504135872"></a><h3> 98<a name="idm45549384225696-bb"></a><code class="computeroutput">uniform_real_distribution</code> private member functions</h3> 99<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"> <a name="idm45549384225120-bb"></a><span class="identifier">BOOST_STATIC_ASSERT_MSG</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_floating_point</span><span class="special"><</span> <span class="identifier">RealType</span> <span class="special">></span><span class="special">::</span><span class="identifier">value</span><span class="special">,</span> 100 <span class="string">"Template argument must be a floating point type"</span><span class="special">)</span><span class="special">;</span></pre></li></ol></div> 101</div> 102</div> 103</div> 104<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 105<td align="left"></td> 106<td align="right"><div class="copyright-footer">Copyright © 2013, 2014 Kyle Lutz<p> 107 Distributed under the Boost Software License, Version 1.0. (See accompanying 108 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>) 109 </p> 110</div></td> 111</tr></table> 112<hr> 113<div class="spirit-nav"> 114<a accesskey="p" href="uniform_int_distribution.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_compute/reference.html#header.boost.compute.random.uniform_real_distribution_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="is_device_iterator.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 115</div> 116</body> 117</html> 118
