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11<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./extensible-associative-sequence.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-sequence.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#id1403">Integral Sequence Wrapper</a></h1>
16<div class="section" id="id40">
17<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
18<p>An <a class="reference internal" 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 internal" 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 internal" 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="id41">
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 internal" href="./integral-sequence-wrapper.html">Integral Sequence Wrapper</a>'s underlying sequence's name.</p>
41<table border="1" class="docutils table">
42<colgroup>
43<col width="38%" />
44<col width="28%" />
45<col width="33%" />
46</colgroup>
47<thead valign="bottom">
48<tr><th class="head">Expression</th>
49<th class="head">Type</th>
50<th class="head">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 internal" 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 internal" 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 internal" 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 internal" 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="id42">
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="docutils 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"><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>.<!-- .. parsed-literal::
95
96BOOST_MPL_ASSERT_RELATION(( at_c<v,0>::type::value,==,\ |c1| ));
97BOOST_MPL_ASSERT_RELATION(( at_c<v,1>::type::value,==,\ |c2| ));
98...
99BOOST_MPL_ASSERT_RELATION(( at_c<v,\ *n*>::type::value,==,\ |cn| )); -->
100</td>
101</tr>
102</tbody>
103</table>
104<!-- .......................................................................... -->
105<pre class="literal-block">
106typedef 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;
107typedef 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;
108</pre>
109<table class="docutils field-list" frame="void" rules="none">
110<col class="field-name" />
111<col class="field-body" />
112<tbody valign="top">
113<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
114<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>,
115... <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>
116</tr>
117</tbody>
118</table>
119<!-- .......................................................................... -->
120<pre class="literal-block">
121typedef 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;
122typedef 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;
123</pre>
124<table class="docutils field-list" frame="void" rules="none">
125<col class="field-name" />
126<col class="field-body" />
127<tbody valign="top">
128<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>
129</tr>
130</tbody>
131</table>
132</div>
133<div class="section" id="id43">
134<h3><a class="subsection-title" href="#models" name="models">Models</a></h3>
135<ul class="simple">
136<li><a class="reference internal" href="./vector-c.html">vector_c</a></li>
137<li><a class="reference internal" href="./list-c.html">list_c</a></li>
138<li><a class="reference internal" href="./set-c.html">set_c</a></li>
139</ul>
140</div>
141<div class="section" id="id44">
142<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
143<p><a class="reference internal" href="./sequences.html">Sequences</a>, <a class="reference internal" href="./variadic-sequence.html">Variadic Sequence</a>, <a class="reference internal" href="./integral-constant.html">Integral Constant</a></p>
144<!-- Sequences/Concepts//Variadic Sequence |100 -->
145</div>
146</div>
147
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150<td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div>
151Distributed under the Boost Software License, Version 1.0. (See accompanying
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