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>Type definition expression_ref</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="../../yap/reference.html#header.boost.yap.algorithm_fwd_hpp" title="Header <boost/yap/algorithm_fwd.hpp>"> 10<link rel="prev" href="terminal.html" title="Type definition terminal"> 11<link rel="next" href="../../BOOST_NO_CONSTEXPR_IF.html" title="Macro BOOST_NO_CONSTEXPR_IF"> 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" width="277" height="86" src="../../../../boost.png"></td> 16<td align="center"><a href="../../../../index.html">Home</a></td> 17<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> 18<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 19<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 20<td align="center"><a href="../../../../more/index.htm">More</a></td> 21</tr></table> 22<hr> 23<div class="spirit-nav"> 24<a accesskey="p" href="terminal.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../yap/reference.html#header.boost.yap.algorithm_fwd_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_NO_CONSTEXPR_IF.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.yap.expression_ref"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Type definition expression_ref</span></h2> 30<p>expression_ref</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="../../yap/reference.html#header.boost.yap.algorithm_fwd_hpp" title="Header <boost/yap/algorithm_fwd.hpp>">boost/yap/algorithm_fwd.hpp</a>> 34 35</span> 36<span class="keyword">typedef</span> <span class="identifier">expr_template</span><span class="special"><</span> <span class="identifier">expr_kind</span><span class="special">::</span><span class="identifier">expr_ref</span><span class="special">,</span> <span class="identifier">hana</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">remove_reference_t</span><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">*</span> <span class="special">></span> <span class="special">></span> <span class="identifier">expression_ref</span><span class="special">;</span></pre></div> 37<div class="refsect1"> 38<a name="id-1.3.48.8.2.3.10.4"></a><h2>Description</h2> 39<p>A convenience alias for a reference expression holding an expression <span class="emphasis"><em>T</em></span>, instantiated from expression template <span class="emphasis"><em>expr_template</em></span>. </p> 40</div> 41</div> 42<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 43<td align="left"></td> 44<td align="right"><div class="copyright-footer">Copyright © 2018 T. Zachary Laine<p> 45 Distributed under the Boost Software License, Version 1.0. (See accompanying 46 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>) 47 </p> 48</div></td> 49</tr></table> 50<hr> 51<div class="spirit-nav"> 52<a accesskey="p" href="terminal.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../yap/reference.html#header.boost.yap.algorithm_fwd_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_NO_CONSTEXPR_IF.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 53</div> 54</body> 55</html> 56
