boostorg/fusion
1
0
Fork 1
mirror of https://github.com/boostorg/fusion.git synced 2025-07-16 13:52:24 +02:00
Code Issues Packages Projects Releases Wiki Activity
Files
b85efc76843b97ed05d8e20637e2ec56c272c78c
fusion/doc/html/fusion/container/vector.html
Joel de Guzman d004046aa5 Merge from Trunk 
[SVN r49252]
2008-10-10 15:05:47 +00:00

308 lines
22 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>vector</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="../container.html" title="Container">
<link rel="prev" href="../container.html" title="Container">
<link rel="next" href="cons.html" title="cons">
</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="../container.html"><img src="../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../container.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="cons.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.container.vector"></a><a href="vector.html" title="vector">vector</a></h3></div></div></div>
<a name="fusion.container.vector.description"></a><h4>
<a name="id527669"></a>
<a href="vector.html#fusion.container.vector.description">Description</a>
</h4>
<p>
<tt class="computeroutput"><span class="identifier">vector</span></tt> is a <a href="../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a> of heterogenous typed data structured as a simple
<tt class="computeroutput"><span class="keyword">struct</span></tt> where each element is
held as a member variable. <tt class="computeroutput"><span class="identifier">vector</span></tt>
is the simplest of the Fusion sequence container, and in many cases the most
efficient.
</p>
<a name="fusion.container.vector.header"></a><h4>
<a name="id527746"></a>
<a href="vector.html#fusion.container.vector.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">container</span><span class="special">/</span><span class="identifier">vector</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">vector</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">container</span><span class="special">/</span><span class="identifier">vector</span><span class="special">/</span><span class="identifier">vector_fwd</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">vector_fwd</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="comment">// numbered forms
</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">container</span><span class="special">/</span><span class="identifier">vector</span><span class="special">/</span><span class="identifier">vector10</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">vector10</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">container</span><span class="special">/</span><span class="identifier">vector</span><span class="special">/</span><span class="identifier">vector20</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">vector20</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">container</span><span class="special">/</span><span class="identifier">vector</span><span class="special">/</span><span class="identifier">vector30</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">vector30</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">container</span><span class="special">/</span><span class="identifier">vector</span><span class="special">/</span><span class="identifier">vector40</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">vector40</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">container</span><span class="special">/</span><span class="identifier">vector</span><span class="special">/</span><span class="identifier">vector50</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">vector50</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
</pre>
<a name="fusion.container.vector.synopsis"></a><h4>
<a name="id528724"></a>
<a href="vector.html#fusion.container.vector.synopsis">Synopsis</a>
</h4>
<p>
<span class="bold"><b>Numbered forms</b></span>
</p>
<pre class="programlisting">
<span class="keyword">template</span> <span class="special">&lt;&gt;</span>
<span class="keyword">struct</span> <span class="identifier">vector0</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">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">vector1</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="keyword">struct</span> <span class="identifier">vector2</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">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">vector3</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">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span><span class="special">...,</span> <span class="keyword">typename</span> <span class="identifier">TN</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">vectorN</span><span class="special">;</span>
</pre>
<p>
<span class="bold"><b>Variadic form</b></span>
</p>
<pre class="programlisting">
<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="emphasis"><em>unspecified</em></span>
<span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T1</span> <span class="special">=</span> <span class="emphasis"><em>unspecified</em></span>
<span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T2</span> <span class="special">=</span> <span class="emphasis"><em>unspecified</em></span>
<span class="special">...</span>
<span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">TN</span> <span class="special">=</span> <span class="emphasis"><em>unspecified</em></span>
<span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">vector</span><span class="special">;</span>
</pre>
<p>
The numbered form accepts the exact number of elements. Example:
</p>
<pre class="programlisting">
<span class="identifier">vector3</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;</span>
</pre>
<p>
The variadic form accepts <tt class="computeroutput"><span class="number">0</span></tt> to
<tt class="computeroutput"><span class="identifier">FUSION_MAX_VECTOR_SIZE</span></tt> elements,
where <tt class="computeroutput"><span class="identifier">FUSION_MAX_VECTOR_SIZE</span></tt>
is a user definable predefined maximum that defaults to <tt class="computeroutput"><span class="number">10</span></tt>.
Example:
</p>
<pre class="programlisting">
<span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">char</span><span class="special">,</span> <span class="keyword">double</span><span class="special">&gt;</span>
</pre>
<p>
You may define the preprocessor constant <tt class="computeroutput"><span class="identifier">FUSION_MAX_VECTOR_SIZE</span></tt>
before including any Fusion header to change the default. Example:
</p>
<pre class="programlisting">
<span class="preprocessor">#define</span> <span class="identifier">FUSION_MAX_VECTOR_SIZE</span> <span class="number">20</span>
</pre>
<a name="fusion.container.vector.template_parameters"></a><h4>
<a name="id529468"></a>
<a href="vector.html#fusion.container.vector.template_parameters">Template parameters</a>
</h4>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Parameter
</p>
</th>
<th>
<p>
Description
</p>
</th>
<th>
<p>
Default
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">T0</span></tt>...<tt class="computeroutput"><span class="identifier">TN</span></tt>
</p>
</td>
<td>
<p>
Element types
</p>
</td>
<td>
<p>
<span class="emphasis"><em>unspecified</em></span>
</p>
</td>
</tr></tbody>
</table></div>
<a name="fusion.container.vector.model_of"></a><h4>
<a name="id529587"></a>
<a href="vector.html#fusion.container.vector.model_of">Model of</a>
</h4>
<div class="itemizedlist"><ul type="disc"><li><a href="../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a></li></ul></div>
<div class="variablelist">
<p class="title"><b>Notation</b></p>
<dl>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">v</span></tt></span></dt>
<dd><p>
Instance of <tt class="computeroutput"><span class="identifier">vector</span></tt>
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">V</span></tt></span></dt>
<dd><p>
A <tt class="computeroutput"><span class="identifier">vector</span></tt> type
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">e0</span></tt>...<tt class="computeroutput"><span class="identifier">en</span></tt></span></dt>
<dd><p>
Heterogeneous values
</p></dd>
<dt><span class="term"><tt class="computeroutput"><span class="identifier">s</span></tt></span></dt>
<dd><p>
A <a href="../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward Sequence</a>
</p></dd>
</dl>
</div>
<a name="fusion.container.vector.expression_semantics"></a><h4>
<a name="id529771"></a>
<a href="vector.html#fusion.container.vector.expression_semantics">Expression Semantics</a>
</h4>
<p>
Semantics of an expression is defined only where it differs from, or is not
defined in <a href="../sequence/concepts/random_access_sequence.html" title="Random
Access Sequence">Random
Access Sequence</a>.
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Expression
</p>
</th>
<th>
<p>
Semantics
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">V</span><span class="special">()</span></tt>
</p>
</td>
<td>
<p>
Creates a vector with default constructed elements.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">V</span><span class="special">(</span><span class="identifier">e0</span><span class="special">,</span> <span class="identifier">e1</span><span class="special">,...</span>
<span class="identifier">en</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Creates a vector with elements <tt class="computeroutput"><span class="identifier">e0</span></tt>...<tt class="computeroutput"><span class="identifier">en</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">V</span><span class="special">(</span><span class="identifier">s</span><span class="special">)</span></tt>
</p>
</td>
<td>
<p>
Copy constructs a vector from a <a href="../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">s</span></tt>.
</p>
</td>
</tr>
<tr>
<td>
<p>
<tt class="computeroutput"><span class="identifier">v</span> <span class="special">=</span>
<span class="identifier">s</span></tt>
</p>
</td>
<td>
<p>
Assigns to a vector, <tt class="computeroutput"><span class="identifier">v</span></tt>,
from a <a href="../sequence/concepts/forward_sequence.html" title="Forward
Sequence">Forward
Sequence</a>, <tt class="computeroutput"><span class="identifier">s</span></tt>.
</p>
</td>
</tr>
</tbody>
</table></div>
<a name="fusion.container.vector.example"></a><h4>
<a name="id530110"></a>
<a href="vector.html#fusion.container.vector.example">Example</a>
</h4>
<pre class="programlisting">
<span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&gt;</span> <span class="identifier">v</span><span class="special">(</span><span class="number">12</span><span class="special">,</span> <span class="number">5.5f</span><span class="special">);</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <a href="../sequence/intrinsic/functions/at_c.html" title="at_c"><tt class="computeroutput"><span class="identifier">at_c</span></tt></a><span class="special">&lt;</span><span class="number">0</span><span class="special">&gt;(</span><span class="identifier">v</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <a href="../sequence/intrinsic/functions/at_c.html" title="at_c"><tt class="computeroutput"><span class="identifier">at_c</span></tt></a><span class="special">&lt;</span><span class="number">1</span><span class="special">&gt;(</span><span class="identifier">v</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
</pre>
</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="../container.html"><img src="../../../../../../doc/html/images/prev.png" alt="Prev"></a><a accesskey="u" href="../container.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="cons.html"><img src="../../../../../../doc/html/images/next.png" alt="Next"></a>
</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink