3 <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
4 <title>Class template is_recursive_wrapper</title>
5 <link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css">
6 <meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
7 <link rel="home" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset">
8 <link rel="up" href="../variant/reference.html#header.boost.variant.recursive_wrapper_hpp" title="Header <boost/variant/recursive_wrapper.hpp>">
9 <link rel="prev" href="recursive_wrapper.html" title="Class template recursive_wrapper">
10 <link rel="next" href="unwrap_recursive_wrapper.html" title="Class template unwrap_recursive_wrapper">
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="../../../libs/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>
22 <div class="spirit-nav">
23 <a accesskey="p" href="recursive_wrapper.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../variant/reference.html#header.boost.variant.recursive_wrapper_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="unwrap_recursive_wrapper.html"><img src="../../../doc/src/images/next.png" alt="Next"></a>
25 <div class="refentry">
26 <a name="boost.is_recursive_wrapper"></a><div class="titlepage"></div>
27 <div class="refnamediv">
28 <h2><span class="refentrytitle">Class template is_recursive_wrapper</span></h2>
29 <p>boost::is_recursive_wrapper — Determines whether the specified type is a specialization of
30 <code class="computeroutput">recursive_wrapper</code>.</p>
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="../variant/reference.html#header.boost.variant.recursive_wrapper_hpp" title="Header <boost/variant/recursive_wrapper.hpp>">boost/variant/recursive_wrapper.hpp</a>>
35 </span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span>
36 <span class="keyword">class</span> <a class="link" href="is_recursive_wrapper.html" title="Class template is_recursive_wrapper">is_recursive_wrapper</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> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.is_recursive_wrapper.type"></a><span class="identifier">type</span><span class="special">;</span>
41 <span class="comment">// static constants</span>
42 <span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">bool</span> <span class="identifier">value</span> = <span class="identifier">unspecified</span><span class="special">;</span>
43 <span class="special">}</span><span class="special">;</span></pre></div>
44 <div class="refsect1">
45 <a name="idp524203552"></a><h2>Description</h2>
46 <p>Value is true iff <code class="computeroutput">T</code> is a specialization of
47 <code class="computeroutput"><a class="link" href="recursive_wrapper.html" title="Class template recursive_wrapper">recursive_wrapper</a></code>.</p>
48 <p><span class="bold"><strong>Note</strong></span>:
49 <code class="computeroutput">is_recursive_wrapper</code> is a model of
51 <span class="emphasis"><em>IntegralConstant</em></span> concept.</p>
54 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
55 <td align="left"></td>
56 <td align="right"><div class="copyright-footer">Copyright © 2002, 2003 Eric Friedman, Itay Maman<p>Distributed under the Boost Software License, Version 1.0.
57 (See accompanying file <code class="filename">LICENSE_1_0.txt</code> or copy at
58 <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
63 <div class="spirit-nav">
64 <a accesskey="p" href="recursive_wrapper.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../variant/reference.html#header.boost.variant.recursive_wrapper_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="unwrap_recursive_wrapper.html"><img src="../../../doc/src/images/next.png" alt="Next"></a>