feedc0de/boost_fusion
1
0
Fork 0
forked from boostorg/fusion
Code Pull Requests Activity
Files
b85efc76843b97ed05d8e20637e2ec56c272c78c
boost_fusion/doc/html/fusion/support/deduce_sequence.html
Joel de Guzman d004046aa5 Merge from Trunk 
[SVN r49252]
2008-10-10 15:05:47 +00:00

107 lines
9.2 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>deduce_sequence</title>
<link rel="stylesheet" href="../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.66.1">
<link rel="start" href="../../index.html" title="Chapter 1. Fusion 2.0">
<link rel="up" href="../support.html" title="Support">
<link rel="prev" href="deduce.html" title="deduce">
<link rel="next" href="pair.html" title="pair">
</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="../../../../../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="deduce.html"><img src="../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../support.html"><img src="../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="pair.html"><img src="../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h3 class="title">
<a name="fusion.support.deduce_sequence"></a><a href="deduce_sequence.html" title="deduce_sequence">deduce_sequence</a></h3></div></div></div>
<a name="fusion.support.deduce_sequence.description"></a><h4>
<a name="id465225"></a>
<a href="deduce_sequence.html#fusion.support.deduce_sequence.description">Description</a>
</h4>
<p>
Applies <a href="../notes.html#fusion.notes.element_conversion"><span class="emphasis"><em>element
conversion</em></span></a> to each element in a <a href="../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>. The resulting type is a <a href="../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> that provides a converting constructor accepting the
original type as its argument.
</p>
<a name="fusion.support.deduce_sequence.header"></a><h4>
<a name="id465287"></a>
<a href="deduce_sequence.html#fusion.support.deduce_sequence.header">Header</a>
</h4>
<pre class="programlisting">
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">support</span><span class="special">/</span><span class="identifier">deduce_sequence</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">deduce_sequence</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.support.deduce_sequence.synopsis"></a><h4>
<a name="id465444"></a>
<a href="deduce_sequence.html#fusion.support.deduce_sequence.synopsis">Synopsis</a>
</h4>
<pre class="programlisting">
<span class="keyword">namespace</span> <span class="identifier">traits</span>
<span class="special">{</span>
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Sequence</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">deduce_sequence</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="emphasis"><em>unspecified</em></span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="special">}</span>
</pre>
<a name="fusion.support.deduce_sequence.example"></a><h4>
<a name="id465576"></a>
<a href="deduce_sequence.html#fusion.support.deduce_sequence.example">Example</a>
</h4>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Seq</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">holder</span>
<span class="special">{</span>
<span class="keyword">typename</span> <span class="identifier">traits</span><span class="special">::</span><span class="identifier">deduce_sequence</span><span class="special">&lt;</span><span class="identifier">Seq</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">element</span><span class="special">;</span>
<span class="identifier">holder</span><span class="special">(</span><span class="identifier">Seq</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">a</span><span class="special">)</span>
<span class="special">:</span> <span class="identifier">element</span><span class="special">(</span><span class="identifier">a</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">&lt;</span><span class="keyword">typename</span> <span class="identifier">T0</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T1</span><span class="special">&gt;</span>
<span class="identifier">holder</span><span class="special">&lt;</span> <a href="../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="identifier">T0</span> <span class="keyword">const</span> <span class="special">&amp;,</span> <span class="identifier">T1</span> <span class="keyword">const</span> <span class="special">&amp;&gt;</span> <span class="special">&gt;</span>
<span class="identifier">make_holder</span><span class="special">(</span><span class="identifier">T0</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">a0</span><span class="special">,</span> <span class="identifier">T1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">a1</span><span class="special">)</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <a href="../container/vector.html" title="vector"><tt class="computeroutput"><span class="identifier">vector</span></tt></a><span class="special">&lt;</span><span class="identifier">T0</span> <span class="keyword">const</span> <span class="special">&amp;,</span> <span class="identifier">T1</span> <span class="keyword">const</span> <span class="special">&amp;&gt;</span> <span class="identifier">arg_vec_t</span><span class="special">;</span>
<span class="keyword">return</span> <span class="identifier">holder</span><span class="special">&lt;</span><span class="identifier">arg_vec_t</span><span class="special">&gt;(</span> <span class="identifier">arg_vec_t</span><span class="special">(</span><span class="identifier">a0</span><span class="special">,</span><span class="identifier">a1</span><span class="special">)</span> <span class="special">);</span>
<span class="special">}</span>
</pre>
<a name="fusion.support.deduce_sequence.see_also"></a><h4>
<a name="id466136"></a>
<a href="deduce_sequence.html#fusion.support.deduce_sequence.see_also">See also</a>
</h4>
<div class="itemizedlist"><ul type="disc"><li><a href="deduce.html" title="deduce"><tt class="computeroutput"><span class="identifier">deduce</span></tt></a></li></ul></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 © 2001-2007 Joel de Guzman, Dan Marsden, Tobias
Schwinger<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="deduce.html"><img src="../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../support.html"><img src="../../../../../../doc/html/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/html/images/home.png" alt="Home"></a><a accesskey="n" href="pair.html"><img src="../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
</body>
</html>
View Git Blame Copy Permalink