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 uniform_01</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.uniform_01_hpp" title="Header <boost/random/uniform_01.hpp>"> 10<link rel="prev" href="triangle_distribution/param_type.html" title="Class param_type"> 11<link rel="next" href="uniform_int_distribution.html" title="Class template uniform_int_distribution"> 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++ 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alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.random.uniform_01"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Class template uniform_01</span></h2> 30<p>boost::random::uniform_01</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.uniform_01_hpp" title="Header <boost/random/uniform_01.hpp>">boost/random/uniform_01.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> RealType <span class="special">=</span> <span class="keyword">double</span><span class="special">></span> 36<span class="keyword">class</span> <a class="link" href="uniform_01.html" title="Class template uniform_01">uniform_01</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">RealType</span> <a name="boost.random.uniform_01.input_type"></a><span class="identifier">input_type</span><span class="special">;</span> 40 <span class="keyword">typedef</span> <span class="identifier">RealType</span> <a name="boost.random.uniform_01.result_type"></a><span class="identifier">result_type</span><span class="special">;</span> 41 42 <span class="comment">// <a class="link" href="uniform_01.html#id-1_3_34_5_6_45_1_1_1_5-bb">public member functions</a></span> 43 <span class="identifier">result_type</span> <a class="link" href="uniform_01.html#id-1_3_34_5_6_45_1_1_1_5_1-bb"><span class="identifier">min</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 44 <span class="identifier">result_type</span> <a class="link" href="uniform_01.html#id-1_3_34_5_6_45_1_1_1_5_2-bb"><span class="identifier">max</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 45 <span class="keyword">void</span> <a class="link" href="uniform_01.html#id-1_3_34_5_6_45_1_1_1_5_3-bb"><span class="identifier">reset</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 46 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Engine<span class="special">></span> <span class="identifier">result_type</span> <a class="link" href="uniform_01.html#id-1_3_34_5_6_45_1_1_1_5_4-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 47<span class="special">}</span><span class="special">;</span></pre></div> 48<div class="refsect1"> 49<a name="id-1.3.34.5.6.44.3.4"></a><h2>Description</h2> 50<p>The distribution function <a class="link" href="uniform_01.html" title="Class template uniform_01">uniform_01</a> models a <a class="link" href="../../boost_random/reference.html#boost_random.reference.concepts.random_distribution" title="Random Distribution">random distribution</a> . On each invocation, it returns a random floating-point value uniformly distributed in the range [0..1).</p> 51<p>The template parameter RealType shall denote a float-like value type with support for binary operators +, -, and /.</p> 52<p>Note: The current implementation is buggy, because it may not fill all of the mantissa with random bits. I'm unsure how to fill a (to-be-invented) <code class="computeroutput">boost::bigfloat</code> class with random bits efficiently. It's probably time for a traits class. </p> 53<div class="refsect2"> 54<a name="id-1.3.34.5.6.44.3.4.5"></a><h3> 55<a name="id-1_3_34_5_6_45_1_1_1_5-bb"></a><code class="computeroutput">uniform_01</code> public member functions</h3> 56<div class="orderedlist"><ol class="orderedlist" type="1"> 57<li class="listitem"><pre class="literallayout"><span class="identifier">result_type</span> <a name="id-1_3_34_5_6_45_1_1_1_5_1-bb"></a><span class="identifier">min</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 58<li class="listitem"><pre class="literallayout"><span class="identifier">result_type</span> <a name="id-1_3_34_5_6_45_1_1_1_5_2-bb"></a><span class="identifier">max</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 59<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="id-1_3_34_5_6_45_1_1_1_5_3-bb"></a><span class="identifier">reset</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li> 60<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Engine<span class="special">></span> <span class="identifier">result_type</span> <a name="id-1_3_34_5_6_45_1_1_1_5_4-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Engine</span> <span class="special">&</span> eng<span class="special">)</span><span class="special">;</span></pre></li> 61</ol></div> 62</div> 63</div> 64</div> 65<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 66<td align="left"></td> 67<td align="right"><div class="copyright-footer">Copyright © 2000-2005 Jens Maurer<br>Copyright © 2009, 2010 Steven Watanabe<p> 68 Distributed under the Boost Software License, Version 1.0. (See accompanying 69 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>) 70 </p> 71</div></td> 72</tr></table> 73<hr> 74<div class="spirit-nav"> 75<a accesskey="p" href="triangle_distribution/param_type.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_random/reference.html#header.boost.random.uniform_01_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="uniform_int_distribution.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 76</div> 77</body> 78</html> 79
