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 absolute</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_units/Reference.html#header.boost.units.absolute_hpp" title="Header <boost/units/absolute.hpp>"> 10<link rel="prev" href="../../boost_units/Reference.html" title="Reference"> 11<link rel="next" href="../../BOOST_UNIT_1_3_44_10_2_2_4.html" title="Macro BOOST_UNITS_DEFINE_CONVERSION_OFFSET"> 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++ Libraries" 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26<div class="refentry"> 27<a name="boost.units.absolute"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Class template absolute</span></h2> 30<p>boost::units::absolute</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_units/Reference.html#header.boost.units.absolute_hpp" title="Header <boost/units/absolute.hpp>">boost/units/absolute.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Y<span class="special">></span> 36<span class="keyword">class</span> <a class="link" href="absolute.html" title="Class template absolute">absolute</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> <a class="link" href="absolute.html" title="Class template absolute">absolute</a><span class="special"><</span> <span class="identifier">Y</span> <span class="special">></span> <a name="boost.units.absolute.this_type"></a><span class="identifier">this_type</span><span class="special">;</span> 40 <span class="keyword">typedef</span> <span class="identifier">Y</span> <a name="boost.units.absolute.value_type"></a><span class="identifier">value_type</span><span class="special">;</span> 41 42 <span class="comment">// <a class="link" href="absolute.html#boost.units.absoluteconstruct-copy-destruct">construct/copy/destruct</a></span> 43 <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_6-bb"><span class="identifier">absolute</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 44 <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_7-bb"><span class="identifier">absolute</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 45 <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_8-bb"><span class="identifier">absolute</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 46 <span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_9-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 47 48 <span class="comment">// <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_5-bb">public member functions</a></span> 49 <span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_5_1-bb"><span class="identifier">value</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 50 <span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_5_2-bb"><span class="keyword">operator</span><span class="special">+=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 51 <span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="absolute.html#id-1_3_44_10_2_2_3_1_1_5_3-bb"><span class="keyword">operator</span><span class="special">-=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 52<span class="special">}</span><span class="special">;</span></pre></div> 53<div class="refsect1"> 54<a name="id-1.3.44.10.2.2.6.4"></a><h2>Description</h2> 55<p>A wrapper to represent absolute units (points rather than vectors). Intended originally for temperatures, this class implements operators for absolute units so that addition of a relative unit to an absolute unit results in another absolute unit : absolute<T> +/- T -> absolute<T> and subtraction of one absolute unit from another results in a relative unit : absolute<T> - absolute<T> -> T. </p> 56<div class="refsect2"> 57<a name="id-1.3.44.10.2.2.6.4.3"></a><h3> 58<a name="boost.units.absoluteconstruct-copy-destruct"></a><code class="computeroutput">absolute</code> 59 public 60 construct/copy/destruct</h3> 61<div class="orderedlist"><ol class="orderedlist" type="1"> 62<li class="listitem"><pre class="literallayout"><a name="id-1_3_44_10_2_2_3_1_1_6-bb"></a><span class="identifier">absolute</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li> 63<li class="listitem"><pre class="literallayout"><a name="id-1_3_44_10_2_2_3_1_1_7-bb"></a><span class="identifier">absolute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> val<span class="special">)</span><span class="special">;</span></pre></li> 64<li class="listitem"><pre class="literallayout"><a name="id-1_3_44_10_2_2_3_1_1_8-bb"></a><span class="identifier">absolute</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span> source<span class="special">)</span><span class="special">;</span></pre></li> 65<li class="listitem"><pre class="literallayout"><span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="identifier">this_type</span> <span class="special">&</span> <a name="id-1_3_44_10_2_2_3_1_1_9-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span> source<span class="special">)</span><span class="special">;</span></pre></li> 66</ol></div> 67</div> 68<div class="refsect2"> 69<a name="id-1.3.44.10.2.2.6.4.4"></a><h3> 70<a name="id-1_3_44_10_2_2_3_1_1_5-bb"></a><code class="computeroutput">absolute</code> public member functions</h3> 71<div class="orderedlist"><ol class="orderedlist" type="1"> 72<li class="listitem"><pre class="literallayout"><span class="identifier">BOOST_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> <a name="id-1_3_44_10_2_2_3_1_1_5_1-bb"></a><span class="identifier">value</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 73<li class="listitem"><pre class="literallayout"><span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span> <a name="id-1_3_44_10_2_2_3_1_1_5_2-bb"></a><span class="keyword">operator</span><span class="special">+=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> val<span class="special">)</span><span class="special">;</span></pre></li> 74<li class="listitem"><pre class="literallayout"><span class="identifier">BOOST_CXX14_CONSTEXPR</span> <span class="keyword">const</span> <span class="identifier">this_type</span> <span class="special">&</span> <a name="id-1_3_44_10_2_2_3_1_1_5_3-bb"></a><span class="keyword">operator</span><span class="special">-=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> val<span class="special">)</span><span class="special">;</span></pre></li> 75</ol></div> 76</div> 77</div> 78</div> 79<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 80<td align="left"></td> 81<td align="right"><div class="copyright-footer">Copyright © 2003-2008 Matthias Christian Schabel<br>Copyright © 2007-2010 Steven 82 Watanabe<p> 83 Distributed under the Boost Software License, Version 1.0. (See accompanying 84 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>) 85 </p> 86</div></td> 87</tr></table> 88<hr> 89<div class="spirit-nav"> 90<a accesskey="p" href="../../boost_units/Reference.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_units/Reference.html#header.boost.units.absolute_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="../../BOOST_UNIT_1_3_44_10_2_2_4.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 91</div> 92</body> 93</html> 94
