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>Struct template listN</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="../../proto/reference.html#header.boost.proto.args_hpp" title="Header <boost/proto/args.hpp>"> 10<link rel="prev" href="term.html" title="Struct template term"> 11<link rel="next" href="functional/display_expr.html" title="Struct display_expr"> 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="term.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../proto/reference.html#header.boost.proto.args_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="functional/display_expr.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.proto.listN"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Struct template listN</span></h2> 30<p>boost::proto::listN — <code class="computeroutput">proto::list1<></code>, <code class="computeroutput">proto::list2<></code>, etc., 31 are type sequences for use as the 2<sup>nd</sup> parameter to the 32 <code class="computeroutput"><a class="link" href="expr.html" title="Struct template expr">proto::expr<></a></code> or 33 <code class="computeroutput"><a class="link" href="basic_expr.html" title="Struct template basic_expr">proto::basic_expr<></a></code> class templates.</p> 34</div> 35<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 36<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="../../proto/reference.html#header.boost.proto.args_hpp" title="Header <boost/proto/args.hpp>">boost/proto/args.hpp</a>> 37 38</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span><span class="special">...</span> Arg<span class="special">></span> 39<span class="keyword">struct</span> <a class="link" href="listN.html" title="Struct template listN">listN</a> <span class="special">{</span> 40 <span class="comment">// types</span> 41 <span class="keyword">typedef</span> <span class="identifier">Arg</span><em class="replaceable"><code><span class="identifier">M</span></code></em> <a name="boost.proto.listN.childM"></a><span class="identifier">childM</span><span class="special">;</span> <span class="comment">// For each <em class="replaceable"><code>M</code></em> in <em class="replaceable"><code>[0,N)</code></em></span> 42 43 <span class="comment">// public data members</span> 44 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">long</span> <span class="identifier">arity</span><span class="special">;</span> <span class="comment">// <code class="computeroutput">= N;</code></span> 45<span class="special">}</span><span class="special">;</span></pre></div> 46<div class="refsect1"> 47<a name="id-1.3.33.5.5.5.4"></a><h2>Description</h2> 48<p> 49 Type sequences, for use as the 2<sup>nd</sup> parameter to the 50 <code class="computeroutput"><a class="link" href="expr.html" title="Struct template expr">proto::expr<></a></code> or 51 <code class="computeroutput"><a class="link" href="basic_expr.html" title="Struct template basic_expr">proto::basic_expr<></a></code> class template. The 52 types in the sequence correspond to the children of a node in an expression tree. 53 There is no type literally named "<code class="computeroutput">listN</code>"; rather, there is 54 a set of types named 55 <code class="computeroutput">proto::list1<></code>, 56 <code class="computeroutput">proto::list2<></code>, etc. 57 </p> 58</div> 59</div> 60<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 61<td align="left"></td> 62<td align="right"><div class="copyright-footer">Copyright © 2008 Eric Niebler<p> 63 Distributed under the Boost Software License, Version 1.0. (See accompanying 64 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>) 65 </p> 66</div></td> 67</tr></table> 68<hr> 69<div class="spirit-nav"> 70<a accesskey="p" href="term.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../proto/reference.html#header.boost.proto.args_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="functional/display_expr.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 71</div> 72</body> 73</html> 74
