1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Struct pow</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.Histogram"> 8<link rel="up" href="../../../../histogram/reference.html#header.boost.histogram.axis.regular_hpp" title="Header <boost/histogram/axis/regular.hpp>"> 9<link rel="prev" href="log.html" title="Struct log"> 10<link rel="next" href="sqrt.html" title="Struct sqrt"> 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="../../../../../../../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 align="center"><a href="../../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="log.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../../histogram/reference.html#header.boost.histogram.axis.regular_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="sqrt.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.histogram.axis.transform.pow"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Struct pow</span></h2> 29<p>boost::histogram::axis::transform::pow — Pow transform for equidistant bins in pow-space. </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="../../../../histogram/reference.html#header.boost.histogram.axis.regular_hpp" title="Header <boost/histogram/axis/regular.hpp>">boost/histogram/axis/regular.hpp</a>> 33 34</span> 35<span class="keyword">struct</span> <a class="link" href="pow.html" title="Struct pow">pow</a> <span class="special">{</span> 36 <span class="comment">// <a class="link" href="pow.html#boost.histogram.axis.transform.powconstruct-copy-destruct">construct/copy/destruct</a></span> 37 <span class="keyword">explicit</span> <a class="link" href="pow.html#idm45503930670528-bb"><span class="identifier">pow</span></a><span class="special">(</span><span class="keyword">double</span><span class="special">)</span><span class="special">;</span> 38 <a class="link" href="pow.html#idm45503930669136-bb"><span class="identifier">pow</span></a><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span> 39 40 <span class="comment">// <a class="link" href="pow.html#idm45503930681248-bb">public member functions</a></span> 41 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">auto</span> <a class="link" href="pow.html#idm45503930680688-bb"><span class="identifier">forward</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 42 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">auto</span> <a class="link" href="pow.html#idm45503930678032-bb"><span class="identifier">inverse</span></a><span class="special">(</span><span class="identifier">T</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 43 <span class="keyword">bool</span> <a class="link" href="pow.html#idm45503930675376-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="pow.html" title="Struct pow">pow</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> 44 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Archive<span class="special">></span> <span class="keyword">void</span> <a class="link" href="pow.html#idm45503930673280-bb"><span class="identifier">serialize</span></a><span class="special">(</span><span class="identifier">Archive</span> <span class="special">&</span><span class="special">,</span> <span class="keyword">unsigned</span><span class="special">)</span><span class="special">;</span> 45 46 <span class="comment">// public data members</span> 47 <span class="keyword">double</span> <span class="identifier">power</span><span class="special">;</span> <span class="comment">// power index </span> 48<span class="special">}</span><span class="special">;</span></pre></div> 49<div class="refsect1"> 50<a name="idm45113192804208"></a><h2>Description</h2> 51<div class="refsect2"> 52<a name="idm45113192803792"></a><h3> 53<a name="boost.histogram.axis.transform.powconstruct-copy-destruct"></a><code class="computeroutput">pow</code> 54 public 55 construct/copy/destruct</h3> 56<div class="orderedlist"><ol class="orderedlist" type="1"> 57<li class="listitem"> 58<pre class="literallayout"><span class="keyword">explicit</span> <a name="idm45503930670528-bb"></a><span class="identifier">pow</span><span class="special">(</span><span class="keyword">double</span> p<span class="special">)</span><span class="special">;</span></pre>Make transform with index p. </li> 59<li class="listitem"><pre class="literallayout"><a name="idm45503930669136-bb"></a><span class="identifier">pow</span><span class="special">(</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li> 60</ol></div> 61</div> 62<div class="refsect2"> 63<a name="idm45113192791264"></a><h3> 64<a name="idm45503930681248-bb"></a><code class="computeroutput">pow</code> public member functions</h3> 65<div class="orderedlist"><ol class="orderedlist" type="1"> 66<li class="listitem"> 67<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">auto</span> <a name="idm45503930680688-bb"></a><span class="identifier">forward</span><span class="special">(</span><span class="identifier">T</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Returns pow(x, power) of external value x. </li> 68<li class="listitem"> 69<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">auto</span> <a name="idm45503930678032-bb"></a><span class="identifier">inverse</span><span class="special">(</span><span class="identifier">T</span> x<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Returns pow(x, 1/power) of external value x. </li> 70<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45503930675376-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="pow.html" title="Struct pow">pow</a> <span class="special">&</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li> 71<li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Archive<span class="special">></span> <span class="keyword">void</span> <a name="idm45503930673280-bb"></a><span class="identifier">serialize</span><span class="special">(</span><span class="identifier">Archive</span> <span class="special">&</span> ar<span class="special">,</span> <span class="keyword">unsigned</span><span class="special">)</span><span class="special">;</span></pre></li> 72</ol></div> 73</div> 74</div> 75</div> 76<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 77<td align="left"></td> 78<td align="right"><div class="copyright-footer">Copyright © 2016-2019 Hans 79 Dembinski<p> 80 Distributed under the Boost Software License, Version 1.0. (See accompanying 81 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 82 </p> 83</div></td> 84</tr></table> 85<hr> 86<div class="spirit-nav"> 87<a accesskey="p" href="log.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../../histogram/reference.html#header.boost.histogram.axis.regular_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="sqrt.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 88</div> 89</body> 90</html> 91
