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Fusion: added nview and friends, docs and tests

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[SVN r56377]
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Hartmut Kaiser
2009-09-25 00:21:53 +00:00
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doc/html/fusion/sequence/intrinsic/metafunctions/at.html
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@ -3,10 +3,10 @@
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>at</title>
<link rel="stylesheet" href="../../../../../../../../doc/html/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.65.1">
<meta name="generator" content="DocBook XSL Stylesheets V1.75.0">
<link rel="home" href="../../../../index.html" title="Chapter<65>1.<2E>Fusion 2.0">
<link rel="up" href="../metafunctions.html" title="Metafunctions">
<link rel="previous" href="size.html" title="size">
<link rel="prev" href="size.html" title="size">
<link rel="next" href="at_c.html" title="at_c">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
@ -22,25 +22,22 @@
<div class="spirit-nav">
<a accesskey="p" href="size.html"><img src="../../../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../metafunctions.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="at_c.html"><img src="../../../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage">
<div><div><h5 class="title">
<a name="fusion.sequence.intrinsic.metafunctions.at"></a><a href="at.html" title="at">at</a>
</h5></div></div>
<div></div>
</div>
<div class="section" title="at">
<div class="titlepage"><div><div><h5 class="title">
<a name="fusion.sequence.intrinsic.metafunctions.at"></a><a class="link" href="at.html" title="at">at</a>
</h5></div></div></div>
<a name="fusion.sequence.intrinsic.metafunctions.at.description"></a><h6>
<a name="id463899"></a>
<a href="at.html#fusion.sequence.intrinsic.metafunctions.at.description">Description</a>
<a name="id611212"></a>
<a class="link" href="at.html#fusion.sequence.intrinsic.metafunctions.at.description">Description</a>
</h6>
<p>
Returns the result type of <a href="../functions/at.html" title="at"><tt class="computeroutput"><span class="identifier">at</span></tt></a>
<sup>[<a name="id463937" href="#ftn.id463937">6</a>]</sup>
Returns the result type of <a class="link" href="../functions/at.html" title="at"><code class="computeroutput"><span class="identifier">at</span></code></a>
<sup>[<a name="id611234" href="#ftn.id611234" class="footnote">6</a>]</sup>
.
</p>
<a name="fusion.sequence.intrinsic.metafunctions.at.synopsis"></a><h6>
<a name="id464055"></a>
<a href="at.html#fusion.sequence.intrinsic.metafunctions.at.synopsis">Synopsis</a>
<a name="id611304"></a>
<a class="link" href="at.html#fusion.sequence.intrinsic.metafunctions.at.synopsis">Synopsis</a>
</h6>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
<span class="keyword">typename</span> <span class="identifier">Seq</span><span class="special">,</span>
@ -51,84 +48,101 @@
<span class="special">};</span>
</pre>
<div class="table">
<a name="id464169"></a><p class="title"><b>Table<EFBFBD>1.25.<2E>Parameters</b></p>
<table class="table" summary="Parameters">
<a name="id611388"></a><p class="title"><b>Table<EFBFBD>1.25.<2E>Parameters</b></p>
<div class="table-contents"><table class="table" summary="Parameters">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th><p>
<th>
<p>
Parameter
</p></th>
<th><p>
</p>
</th>
<th>
<p>
Requirement
</p></th>
<th><p>
</p>
</th>
<th>
<p>
Description
</p></th>
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td><p>
<tt class="computeroutput"><span class="identifier">Seq</span></tt>
</p></td>
<td><p>
A model of <a href="../../concepts/forward_sequence.html" title="Forward
Sequence">Forward
<td>
<p>
<code class="computeroutput"><span class="identifier">Seq</span></code>
</p>
</td>
<td>
<p>
A model of <a class="link" href="../../concepts/forward_sequence.html" title="Forward Sequence">Forward
Sequence</a>
</p></td>
<td><p>
</p>
</td>
<td>
<p>
Argument sequence
</p></td>
</p>
</td>
</tr>
<tr>
<td><p>
<tt class="computeroutput"><span class="identifier">N</span></tt>
</p></td>
<td><p>
<td>
<p>
<code class="computeroutput"><span class="identifier">N</span></code>
</p>
</td>
<td>
<p>
An <a href="http://www.boost.org/libs/mpl/doc/refmanual/integral-constant.html" target="_top">MPL
Integral Constant</a>
</p></td>
<td><p>
</p>
</td>
<td>
<p>
Index of element
</p></td>
</p>
</td>
</tr>
</tbody>
</table>
</table></div>
</div>
<a name="fusion.sequence.intrinsic.metafunctions.at.expression_semantics"></a><h6>
<a name="id464313"></a>
<a href="at.html#fusion.sequence.intrinsic.metafunctions.at.expression_semantics">Expression
<br class="table-break"><a name="fusion.sequence.intrinsic.metafunctions.at.expression_semantics"></a><h6>
<a name="id611506"></a>
<a class="link" href="at.html#fusion.sequence.intrinsic.metafunctions.at.expression_semantics">Expression
Semantics</a>
</h6>
<pre class="programlisting"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at</span><span class="special">&lt;</span><span class="identifier">Seq</span><span class="special">,</span> <span class="identifier">N</span><span class="special">&gt;::</span><span class="identifier">type</span>
</pre>
<p>
<span class="bold"><b>Return type</b></span>: Any type.
<span class="bold"><strong>Return type</strong></span>: Any type.
</p>
<p>
<span class="bold"><b>Semantics</b></span>: Returns the result type of
using <a href="../functions/at.html" title="at"><tt class="computeroutput"><span class="identifier">at</span></tt></a> to access the <tt class="computeroutput"><span class="identifier">N</span></tt>th element of <tt class="computeroutput"><span class="identifier">Seq</span></tt>.
<span class="bold"><strong>Semantics</strong></span>: Returns the result type of
using <a class="link" href="../functions/at.html" title="at"><code class="computeroutput"><span class="identifier">at</span></code></a> to access the <code class="computeroutput"><span class="identifier">N</span></code>th element of <code class="computeroutput"><span class="identifier">Seq</span></code>.
</p>
<p>
/sequence/intrinsic/at.hpp&gt;
</p>
<a name="fusion.sequence.intrinsic.metafunctions.at.example"></a><h6>
<a name="id464460"></a>
<a href="at.html#fusion.sequence.intrinsic.metafunctions.at.example">Example</a>
<a name="id611605"></a>
<a class="link" href="at.html#fusion.sequence.intrinsic.metafunctions.at.example">Example</a>
</h6>
<pre class="programlisting"><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="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special">&lt;</span><a href="at.html" title="at"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at</span></tt></a><span class="special">&lt;</span><span class="identifier">vec</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="number">1</span><span class="special">&gt;</span> <span class="special">&gt;::</span><span class="identifier">type</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&amp;&gt;));</span>
<pre class="programlisting"><span class="keyword">typedef</span> <a class="link" href="../../../container/vector.html" title="vector"><code class="computeroutput"><span class="identifier">vector</span></code></a><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span><span class="keyword">float</span><span class="special">,</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="identifier">vec</span><span class="special">;</span>
<span class="identifier">BOOST_MPL_ASSERT</span><span class="special">((</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">is_same</span><span class="special">&lt;</span><a class="link" href="at.html" title="at"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at</span></code></a><span class="special">&lt;</span><span class="identifier">vec</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special">&lt;</span><span class="number">1</span><span class="special">&gt;</span> <span class="special">&gt;::</span><span class="identifier">type</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&amp;&gt;));</span>
</pre>
<div class="footnotes">
<br><hr width="100" align="left">
<div class="footnote"><p><sup>[<a name="ftn.id463937" href="#id463937">6</a>] </sup>
<a href="at.html" title="at"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at</span></tt></a> reflects the actual return
type of the function <a href="../functions/at.html" title="at"><tt class="computeroutput"><span class="identifier">at</span></tt></a>. <a href="../../../sequence.html" title="Sequence">Sequence</a>(s)
typically return references to its elements via the <a href="../functions/at.html" title="at"><tt class="computeroutput"><span class="identifier">at</span></tt></a> function. If you want
to get the actual element type, use <a href="value_at.html" title="value_at"><tt class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">value_at</span></tt></a>
<div class="footnote"><p><sup>[<a name="ftn.id611234" href="#id611234" class="para">6</a>] </sup>
<a class="link" href="at.html" title="at"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">at</span></code></a> reflects the actual return
type of the function <a class="link" href="../functions/at.html" title="at"><code class="computeroutput"><span class="identifier">at</span></code></a>. <a class="link" href="../../../sequence.html" title="Sequence">Sequence</a>(s)
typically return references to its elements via the <a class="link" href="../functions/at.html" title="at"><code class="computeroutput"><span class="identifier">at</span></code></a> function. If you want
to get the actual element type, use <a class="link" href="value_at.html" title="value_at"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">value_at</span></code></a>
</p></div>
</div>
</div>