Planet
navi homePPSaboutscreenshotsdownloaddevelopmentforum

source: downloads/boost_1_33_1/libs/mpl/doc/refmanual/integral-sequence-wrapper.html @ 12

Last change on this file since 12 was 12, checked in by landauf, 17 years ago

added boost

File size: 12.3 KB
Line 
1<?xml version="1.0" encoding="utf-8" ?>
2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
3<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
4<head>
5<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
6<meta name="generator" content="Docutils 0.3.6: http://docutils.sourceforge.net/" />
7<title>The MPL Reference Manual: Integral Sequence Wrapper</title>
8<link rel="stylesheet" href="../style.css" type="text/css" />
9</head>
10<body class="docframe refmanual">
11<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./extensible-associative.html" class="navigation-link">Prev</a>&nbsp;<a href="./variadic-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./extensible-associative.html" class="navigation-link">Back</a>&nbsp;<a href="./variadic-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
12<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./sequences.html" class="navigation-link">Sequences</a> / <a href="./concepts.html" class="navigation-link">Concepts</a> / <a href="./integral-sequence-wrapper.html" class="navigation-link">Integral Sequence Wrapper</a></td>
13</tr></table><div class="header-separator"></div>
14<div class="section" id="integral-sequence-wrapper">
15<h1><a class="toc-backref" href="./concepts.html#id332" name="integral-sequence-wrapper">Integral Sequence Wrapper</a></h1>
16<div class="section" id="integral-description">
17<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
18<p>An <a class="reference" href="./integral-sequence-wrapper.html">Integral Sequence Wrapper</a> is a class template that provides a concise
19interface for creating a corresponding sequence of <a class="reference" href="./integral-constant.html">Integral Constant</a>s. In
20particular, assuming that <tt class="literal"><span class="pre">seq</span></tt> is a name of the wrapper's underlying
21sequence and <em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub> are integral constants of an integral type <tt class="literal"><span class="pre">T</span></tt> to
22be stored in the sequence, the wrapper provides us with the following
23notation:</p>
24<blockquote>
25<div class="line-block">
26<div class="line"><tt class="literal"><span class="pre">seq_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt></div>
27</div>
28</blockquote>
29<p>If <tt class="literal"><span class="pre">seq</span></tt> is a <a class="reference" href="./variadic-sequence.html">Variadic Sequence</a>, <em>numbered</em> wrapper forms are
30also avaialable:</p>
31<blockquote>
32<div class="line-block">
33<div class="line"><tt class="literal"><span class="pre">seq</span></tt><em>n</em><tt class="literal"><span class="pre">_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt></div>
34</div>
35</blockquote>
36</div>
37<div class="section" id="integral-expression-requirements">
38<h3><a class="subsection-title" href="#expression-requirements" name="expression-requirements">Expression requirements</a></h3>
39<p>In the following table and subsequent specifications, <tt class="literal"><span class="pre">seq</span></tt> is a placeholder token for the
40<a class="reference" href="./integral-sequence-wrapper.html">Integral Sequence Wrapper</a>'s underlying sequence's name.</p>
41<table border="1" class="table">
42<colgroup>
43<col width="38%" />
44<col width="28%" />
45<col width="33%" />
46</colgroup>
47<thead valign="bottom">
48<tr><th>Expression</th>
49<th>Type</th>
50<th>Complexity</th>
51</tr>
52</thead>
53<tbody valign="top">
54<tr><td><tt class="literal"><span class="pre">seq_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt></td>
55<td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
56<td>Amortized constant time.</td>
57</tr>
58<tr><td><tt class="literal"><span class="pre">seq_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;::type</span></tt></td>
59<td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
60<td>Amortized constant time.</td>
61</tr>
62<tr><td><tt class="literal"><span class="pre">seq_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;::<a href="./value-type.html" class="identifier">value_type</a></span></tt></td>
63<td>An integral type</td>
64<td>Amortized constant time.</td>
65</tr>
66<tr><td><tt class="literal"><span class="pre">seq</span></tt><em>n</em><tt class="literal"><span class="pre">_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt></td>
67<td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
68<td>Amortized constant time.</td>
69</tr>
70<tr><td><tt class="literal"><span class="pre">seq</span></tt><em>n</em><tt class="literal"><span class="pre">_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;::type</span></tt></td>
71<td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
72<td>Amortized constant time.</td>
73</tr>
74<tr><td><tt class="literal"><span class="pre">seq</span></tt><em>n</em><tt class="literal"><span class="pre">_c&lt;T</span></tt>,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;::<a href="./value-type.html" class="identifier">value_type</a></span></tt></td>
75<td>An integral type</td>
76<td>Amortized constant time.</td>
77</tr>
78</tbody>
79</table>
80</div>
81<div class="section" id="integral-expression-semantics">
82<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
83<pre class="literal-block">
84typedef seq_c&lt;T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>&gt; s;
85typedef seq<em>n</em>_c&lt;T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>&gt; s;
86</pre>
87<table class="field-list" frame="void" rules="none">
88<col class="field-name" />
89<col class="field-body" />
90<tbody valign="top">
91<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><tt class="literal"><span class="pre">s</span></tt> is a sequence <tt class="literal"><span class="pre">seq</span></tt> of integral constant wrappers <tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a>&lt;T,</span></tt><em>c</em><sub>1</sub><tt class="literal"><span class="pre">&gt;</span></tt>,
92<tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a>&lt;T,</span></tt><em>c</em><sub>2</sub><tt class="literal"><span class="pre">&gt;</span></tt>, ... <tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a>&lt;T,</span></tt><em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt>.</td>
93</tr>
94<tr class="field"><th class="field-name">Postcondition:</th><td class="field-body"><p class="first"><tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;s&gt;::value</span> <span class="pre">==</span> <span class="pre">n</span></tt>.</p>
95<!-- .. parsed-literal::
96
97BOOST_MPL_ASSERT_RELATION(( at_c<v,0>::type::value,==,\ |c1| ));
98BOOST_MPL_ASSERT_RELATION(( at_c<v,1>::type::value,==,\ |c2| ));
99...
100BOOST_MPL_ASSERT_RELATION(( at_c<v,\ *n*>::type::value,==,\ |cn| )); -->
101</td>
102</tr>
103</tbody>
104</table>
105<!-- .......................................................................... -->
106<pre class="literal-block">
107typedef seq_c&lt;T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>&gt;::type s;
108typedef seq<em>n</em>_c&lt;T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>&gt;::type s;
109</pre>
110<table class="field-list" frame="void" rules="none">
111<col class="field-name" />
112<col class="field-body" />
113<tbody valign="top">
114<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><tt class="literal"><span class="pre">s</span></tt> is identical to
115<tt class="literal"><span class="pre">seq</span></tt><em>n</em><tt class="literal"><span class="pre">&lt;</span></tt><tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a>&lt;T,</span></tt><em>c</em><sub>1</sub><tt class="literal"><span class="pre">&gt;</span></tt>,<tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a>&lt;T,</span></tt><em>c</em><sub>2</sub><tt class="literal"><span class="pre">&gt;</span></tt>,
116... <tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a>&lt;T,</span></tt><em>c</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt> <tt class="literal"><span class="pre">&gt;</span></tt>.</td>
117</tr>
118</tbody>
119</table>
120<!-- .......................................................................... -->
121<pre class="literal-block">
122typedef seq_c&lt;T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>&gt;::<a href="./value-type.html" class="identifier">value_type</a> t;
123typedef seq<em>n</em>_c&lt;T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>&gt;::<a href="./value-type.html" class="identifier">value_type</a> t;
124</pre>
125<table class="field-list" frame="void" rules="none">
126<col class="field-name" />
127<col class="field-body" />
128<tbody valign="top">
129<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><tt class="literal"><span class="pre">is_same&lt;t,T&gt;::value</span> <span class="pre">==</span> <span class="pre">true</span></tt>.</td>
130</tr>
131</tbody>
132</table>
133</div>
134<div class="section" id="integral-models">
135<h3><a class="subsection-title" href="#models" name="models">Models</a></h3>
136<ul class="simple">
137<li><a class="refentry reference" href="./vector-c.html"><tt class="refentry literal"><span class="pre">vector_c</span></tt></a></li>
138<li><a class="refentry reference" href="./list-c.html"><tt class="refentry literal"><span class="pre">list_c</span></tt></a></li>
139<li><a class="refentry reference" href="./set-c.html"><tt class="refentry literal"><span class="pre">set_c</span></tt></a></li>
140</ul>
141</div>
142<div class="section" id="integral-see-also">
143<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
144<p><a class="reference" href="./sequences.html">Sequences</a>, <a class="reference" href="./variadic-sequence.html">Variadic Sequence</a>, <a class="reference" href="./integral-constant.html">Integral Constant</a></p>
145<!-- modtime: November 13, 2004 00:59:26 +0000 -->
146<!-- Sequences/Concepts//Variadic Sequence |100 -->
147</div>
148</div>
149
150<div class="footer-separator"></div>
151<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./extensible-associative.html" class="navigation-link">Prev</a>&nbsp;<a href="./variadic-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./extensible-associative.html" class="navigation-link">Back</a>&nbsp;<a href="./variadic-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
152</tr></table></body>
153</html>
Note: See TracBrowser for help on using the repository browser.