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 0.7: 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-sequence.html" class="navigation-link">Prev</a> <a href="./variadic-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./extensible-associative-sequence.html" class="navigation-link">Back</a> <a href="./variadic-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </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<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">></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<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">></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<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">></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<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">>::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<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">>::<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<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">></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<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">>::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<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">>::<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<T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>> s; 85typedef seq<em>n</em>_c<T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>> 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><T,</span></tt><em>c</em><sub>1</sub><tt class="literal"><span class="pre">></span></tt>, 92<tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a><T,</span></tt><em>c</em><sub>2</sub><tt class="literal"><span class="pre">></span></tt>, ... <tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a><T,</span></tt><em>c</em><sub>n</sub><tt class="literal"><span class="pre">></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><s>::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<T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>>::type s; 107typedef seq<em>n</em>_c<T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>>::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"><</span></tt><tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a><T,</span></tt><em>c</em><sub>1</sub><tt class="literal"><span class="pre">></span></tt>,<tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a><T,</span></tt><em>c</em><sub>2</sub><tt class="literal"><span class="pre">></span></tt>, 115... <tt class="literal"><span class="pre"><a href="./integral-c.html" class="identifier">integral_c</a><T,</span></tt><em>c</em><sub>n</sub><tt class="literal"><span class="pre">></span></tt> <tt class="literal"><span class="pre">></span></tt>.</td> 116</tr> 117</tbody> 118</table> 119<!-- .......................................................................... --> 120<pre class="literal-block"> 121typedef seq_c<T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>>::<a href="./value-type.html" class="identifier">value_type</a> t; 122typedef seq<em>n</em>_c<T,<em>c</em><sub>1</sub>,<em>c</em><sub>2</sub>,... <em>c</em><sub>n</sub>>::<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<t,T>::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> 147 148<div class="footer-separator"></div> 149<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./extensible-associative-sequence.html" class="navigation-link">Prev</a> <a href="./variadic-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./extensible-associative-sequence.html" class="navigation-link">Back</a> <a href="./variadic-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> 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 152file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body> 153</html> 154