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diff --git a/doc/html/boost/units/quantity_BOOS_idp774917184.html b/doc/html/boost/units/quantity_BOOS_idp774917184.html new file mode 100644 index 0000000000..7ea793e022 --- /dev/null +++ b/doc/html/boost/units/quantity_BOOS_idp774917184.html @@ -0,0 +1,165 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> +<title>Class template quantity<BOOST_UNITS_DIMENSIONLESS_UNIT(System), Y></title> +<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> +<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> +<link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> +<link rel="up" href="../../boost_units/Reference.html#header.boost.units.quantity_hpp" title="Header <boost/units/quantity.hpp>"> +<link rel="prev" href="quantity.html" title="Class template quantity"> +<link rel="next" href="add_typeof_he_idp774981632.html" title="Struct template add_typeof_helper<quantity< unit< Dim1, System1 >, X >, quantity< unit< Dim2, System2 >, Y >>"> +</head> +<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> +<table cellpadding="2" width="100%"><tr> +<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> +<td align="center"><a href="../../../../index.html">Home</a></td> +<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> +<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> +<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> +<td align="center"><a href="../../../../more/index.htm">More</a></td> +</tr></table> +<hr> +<div class="spirit-nav"> +<a accesskey="p" href="quantity.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_units/Reference.html#header.boost.units.quantity_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="add_typeof_he_idp774981632.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> +</div> +<div class="refentry"> +<a name="boost.units.quantity_BOOS_idp774917184"></a><div class="titlepage"></div> +<div class="refnamediv"> +<h2><span class="refentrytitle">Class template quantity<BOOST_UNITS_DIMENSIONLESS_UNIT(System), Y></span></h2> +<p>boost::units::quantity<BOOST_UNITS_DIMENSIONLESS_UNIT(System), Y></p> +</div> +<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> +<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.quantity_hpp" title="Header <boost/units/quantity.hpp>">boost/units/quantity.hpp</a>> + +</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System<span class="special">,</span> <span class="keyword">typename</span> Y<span class="special">></span> +<span class="keyword">class</span> <a class="link" href="quantity_BOOS_idp774917184.html" title="Class template quantity<BOOST_UNITS_DIMENSIONLESS_UNIT(System), Y>">quantity</a><span class="special"><</span><span class="identifier">BOOST_UNITS_DIMENSIONLESS_UNIT</span><span class="special">(</span><span class="identifier">System</span><span class="special">)</span><span class="special">,</span> <span class="identifier">Y</span><span class="special">></span> <span class="special">{</span> +<span class="keyword">public</span><span class="special">:</span> + <span class="comment">// types</span> + <span class="keyword">typedef</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y</span> <span class="special">></span> <a name="boost.units.quantity_BOOS_idp774917184.this_type"></a><span class="identifier">this_type</span><span class="special">;</span> + <span class="keyword">typedef</span> <span class="identifier">Y</span> <a name="boost.units.quantity_BOOS_idp774917184.value_type"></a><span class="identifier">value_type</span><span class="special">;</span> + <span class="keyword">typedef</span> <span class="identifier">System</span> <a name="boost.units.quantity_BOOS_idp774917184.system_type"></a><span class="identifier">system_type</span><span class="special">;</span> + <span class="keyword">typedef</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a> <a name="boost.units.quantity_BOOS_idp774917184.dimension_type"></a><span class="identifier">dimension_type</span><span class="special">;</span> + <span class="keyword">typedef</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span> <a name="boost.units.quantity_BOOS_idp774917184.unit_type"></a><span class="identifier">unit_type</span><span class="special">;</span> + + <span class="comment">// <a class="link" href="quantity_BOOS_idp774917184.html#boost.units.quantity_BOOS_idp774917184construct-copy-destruct">construct/copy/destruct</a></span> + <a class="link" href="quantity_BOOS_idp774917184.html#idp774938480-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> + <a class="link" href="quantity_BOOS_idp774917184.html#idp774938768-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="identifier">value_type</span><span class="special">)</span><span class="special">;</span> + <a class="link" href="quantity_BOOS_idp774917184.html#idp774940480-bb"><span class="identifier">quantity</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> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> YY<span class="special">></span> + <a class="link" href="quantity_BOOS_idp774917184.html#idp774942720-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span><span class="special">,</span> <span class="identifier">YY</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> YY<span class="special">></span> + <span class="keyword">explicit</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774946928-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span><span class="special">,</span> <span class="identifier">YY</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">,</span> <span class="keyword">typename</span> Y2<span class="special">></span> + <a class="link" href="quantity_BOOS_idp774917184.html#idp774954800-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System2</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y2</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">,</span> <span class="keyword">typename</span> Y2<span class="special">></span> + <span class="keyword">explicit</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774962176-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System2</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y2</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">,</span> <span class="keyword">typename</span> Y2<span class="special">></span> + <span class="keyword">explicit</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774969824-bb"><span class="identifier">quantity</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System2</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y2</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774941456-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> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> YY<span class="special">></span> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774951408-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span><span class="special">,</span> <span class="identifier">YY</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> + <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">></span> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774975424-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <span class="identifier">BOOST_UNITS_DIMENSIONLESS_UNIT</span><span class="special">(</span><span class="identifier">System2</span><span class="special">)</span><span class="special">,</span> <span class="identifier">Y</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> + + <span class="comment">// <a class="link" href="quantity_BOOS_idp774917184.html#idp774926624-bb">public member functions</a></span> + <a class="link" href="quantity_BOOS_idp774917184.html#idp774927184-bb"><span class="keyword">operator</span> <span class="identifier">value_type</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> + <span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774929040-bb"><span class="identifier">value</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774930976-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> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774932912-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> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774934848-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> + <span class="identifier">this_type</span> <span class="special">&</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774936784-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> + + <span class="comment">// <a class="link" href="quantity_BOOS_idp774917184.html#idp774978352-bb">public static functions</a></span> + <span class="keyword">static</span> <span class="identifier">this_type</span> <a class="link" href="quantity_BOOS_idp774917184.html#idp774978912-bb"><span class="identifier">from_value</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> +<span class="special">}</span><span class="special">;</span></pre></div> +<div class="refsect1"> +<a name="idp588195008"></a><h2>Description</h2> +<p>Specialization for dimensionless quantities. Implicit conversions between unit systems are allowed because all dimensionless quantities are equivalent. Implicit construction and assignment from and conversion to <code class="computeroutput">value_type</code> is also allowed. </p> +<div class="refsect2"> +<a name="idp588196624"></a><h3> +<a name="boost.units.quantity_BOOS_idp774917184construct-copy-destruct"></a><code class="computeroutput">quantity</code> + public + construct/copy/destruct</h3> +<div class="orderedlist"><ol class="orderedlist" type="1"> +<li class="listitem"><pre class="literallayout"><a name="idp774938480-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li> +<li class="listitem"> +<pre class="literallayout"><a name="idp774938768-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="identifier">value_type</span> val<span class="special">)</span><span class="special">;</span></pre>construction from raw <code class="computeroutput">value_type</code> is allowed </li> +<li class="listitem"><pre class="literallayout"><a name="idp774940480-bb"></a><span class="identifier">quantity</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> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> YY<span class="special">></span> + <a name="idp774942720-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span><span class="special">,</span> <span class="identifier">YY</span> <span class="special">></span> <span class="special">&</span> source<span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>implicit conversion between value types is allowed if allowed for value types themselves </li> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> YY<span class="special">></span> + <span class="keyword">explicit</span> <a name="idp774946928-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span><span class="special">,</span> <span class="identifier">YY</span> <span class="special">></span> <span class="special">&</span> source<span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>implicit conversion between value types is not allowed if not allowed for value types themselves </li> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">,</span> <span class="keyword">typename</span> Y2<span class="special">></span> + <a name="idp774954800-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System2</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y2</span> <span class="special">></span> <span class="special">&</span> source<span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>implicit conversion between different unit systems is allowed </li> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">,</span> <span class="keyword">typename</span> Y2<span class="special">></span> + <span class="keyword">explicit</span> <a name="idp774962176-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System2</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y2</span> <span class="special">></span> <span class="special">&</span> source<span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>implicit conversion between different unit systems is allowed </li> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">,</span> <span class="keyword">typename</span> Y2<span class="special">></span> + <span class="keyword">explicit</span> <a name="idp774969824-bb"></a><span class="identifier">quantity</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <a class="link" href="dimensionless_type.html" title="Struct dimensionless_type">dimensionless_type</a><span class="special">,</span> <span class="identifier">System2</span> <span class="special">></span><span class="special">,</span> <span class="identifier">Y2</span> <span class="special">></span> <span class="special">&</span> source<span class="special">,</span> + <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre> +<p>conversion between different unit systems is explicit when the units are not equivalent. </p> +</li> +<li class="listitem"><pre class="literallayout"><span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774941456-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> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> YY<span class="special">></span> + <span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774951408-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <a class="link" href="unit.html" title="Class template unit">unit</a><span class="special"><</span> <span class="identifier">dimension_type</span><span class="special">,</span> <span class="identifier">system_type</span> <span class="special">></span><span class="special">,</span> <span class="identifier">YY</span> <span class="special">></span> <span class="special">&</span> source<span class="special">)</span><span class="special">;</span></pre>implicit assignment between value types is allowed if allowed for value types themselves </li> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> System2<span class="special">></span> + <span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774975424-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="quantity.html" title="Class template quantity">quantity</a><span class="special"><</span> <span class="identifier">BOOST_UNITS_DIMENSIONLESS_UNIT</span><span class="special">(</span><span class="identifier">System2</span><span class="special">)</span><span class="special">,</span> <span class="identifier">Y</span> <span class="special">></span> <span class="special">&</span> source<span class="special">)</span><span class="special">;</span></pre>implicit assignment between different unit systems is allowed </li> +</ol></div> +</div> +<div class="refsect2"> +<a name="idp588358544"></a><h3> +<a name="idp774926624-bb"></a><code class="computeroutput">quantity</code> public member functions</h3> +<div class="orderedlist"><ol class="orderedlist" type="1"> +<li class="listitem"> +<pre class="literallayout"><a name="idp774927184-bb"></a><span class="keyword">operator</span> <span class="identifier">value_type</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>implicit conversion to <code class="computeroutput">value_type</code> is allowed </li> +<li class="listitem"> +<pre class="literallayout"><span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&</span> <a name="idp774929040-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>constant accessor to value <p>can add a quantity of the same type if add_typeof_helper<value_type,value_type>::type is convertible to value_type </p> +</li> +<li class="listitem"> +<pre class="literallayout"><span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774930976-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>can subtract a quantity of the same type if subtract_typeof_helper<value_type,value_type>::type is convertible to value_type </li> +<li class="listitem"> +<pre class="literallayout"><span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774932912-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>can multiply a quantity by a scalar value_type if multiply_typeof_helper<value_type,value_type>::type is convertible to value_type </li> +<li class="listitem"> +<pre class="literallayout"><span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774934848-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>can divide a quantity by a scalar value_type if divide_typeof_helper<value_type,value_type>::type is convertible to value_type </li> +<li class="listitem"><pre class="literallayout"><span class="identifier">this_type</span> <span class="special">&</span> <a name="idp774936784-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> +</ol></div> +</div> +<div class="refsect2"> +<a name="idp588404784"></a><h3> +<a name="idp774978352-bb"></a><code class="computeroutput">quantity</code> public static functions</h3> +<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> +<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">this_type</span> <a name="idp774978912-bb"></a><span class="identifier">from_value</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>Construct quantity directly from <code class="computeroutput">value_type</code>. </li></ol></div> +</div> +</div> +</div> +<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> +<td align="left"></td> +<td align="right"><div class="copyright-footer">Copyright © 2003-2008 Matthias Christian Schabel<br>Copyright © 2007-2010 Steven + Watanabe<p> + Distributed under the Boost Software License, Version 1.0. (See accompanying + 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>) + </p> +</div></td> +</tr></table> +<hr> +<div class="spirit-nav"> +<a accesskey="p" href="quantity.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_units/Reference.html#header.boost.units.quantity_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="add_typeof_he_idp774981632.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> +</div> +</body> +</html> |