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: iterator_range</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="./filter-view.html" class="navigation-link">Prev</a> <a href="./joint-view.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./filter-view.html" class="navigation-link">Back</a> <a href="./joint-view.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./views.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="./views.html" class="navigation-link">Views</a> / <a href="./iterator-range.html" class="navigation-link">iterator_range</a></td> 13</tr></table><div class="header-separator"></div> 14<div class="section" id="iterator-range"> 15<h1><a class="toc-backref" href="./views.html#id1419">iterator_range</a></h1> 16<div class="section" id="id133"> 17<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> 18<pre class="literal-block"> 19template< 20 typename First 21 , typename Last 22 > 23struct <a href="./iterator-range.html" class="identifier">iterator_range</a> 24{ 25 // <em>unspecified</em> 26 // <em>...</em> 27}; 28</pre> 29</div> 30<div class="section" id="id134"> 31<h3><a class="subsection-title" href="#description" name="description">Description</a></h3> 32<p>A view into subset of sequence elements identified by a pair of iterators.</p> 33</div> 34<div class="section" id="id135"> 35<h3><a class="subsection-title" href="#header" name="header">Header</a></h3> 36<pre class="literal-block"> 37#include <<a href="../../../../boost/mpl/fold.hpp" class="header">boost/mpl/fold.hpp</a>> 38</pre> 39</div> 40<div class="section" id="id136"> 41<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> 42<ul class="simple"> 43<li><a class="reference internal" href="./forward-sequence.html">Forward</a>, <a class="reference internal" href="./bidirectional-sequence.html">Bidirectional</a>, or <a class="reference internal" href="./random-access-sequence.html">Random Access Sequence</a>, depending on the category 44of the underlaying iterators.</li> 45</ul> 46</div> 47<div class="section" id="id139"> 48<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> 49<table border="1" class="docutils table"> 50<colgroup> 51<col width="15%" /> 52<col width="36%" /> 53<col width="48%" /> 54</colgroup> 55<thead valign="bottom"> 56<tr><th class="head">Parameter</th> 57<th class="head">Requirement</th> 58<th class="head">Description</th> 59</tr> 60</thead> 61<tbody valign="top"> 62<tr><td><tt class="literal"><span class="pre">First</span></tt>, 63<tt class="literal"><span class="pre">Last</span></tt></td> 64<td><a class="reference internal" href="./forward-iterator.html">Forward Iterator</a></td> 65<td>Iterators identifying the view's boundaries.</td> 66</tr> 67</tbody> 68</table> 69</div> 70<div class="section" id="id140"> 71<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> 72<p>The semantics of an expression are defined only 73where they differ from, or are not defined in <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a>.</p> 74<p>In the following table, <tt class="literal"><span class="pre">v</span></tt> is an instance of <tt class="literal"><span class="pre"><a href="./iterator-range.html" class="identifier">iterator_range</a></span></tt>, <tt class="literal"><span class="pre">first</span></tt> and <tt class="literal"><span class="pre">last</span></tt> are 75iterators into a <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a>, and [<tt class="literal"><span class="pre">first</span></tt>, <tt class="literal"><span class="pre">last</span></tt>) form a valid range.</p> 76<table border="1" class="docutils table"> 77<colgroup> 78<col width="44%" /> 79<col width="56%" /> 80</colgroup> 81<thead valign="bottom"> 82<tr><th class="head">Expression</th> 83<th class="head">Semantics</th> 84</tr> 85</thead> 86<tbody valign="top"> 87<tr><td><pre class="first last literal-block"> 88<a href="./iterator-range.html" class="identifier">iterator_range</a><first,last> 89<a href="./iterator-range.html" class="identifier">iterator_range</a><first,last>::type 90</pre> 91</td> 92<td>A lazy sequence all the elements in the range 93[<tt class="literal"><span class="pre">first</span></tt>, <tt class="literal"><span class="pre">last</span></tt>).</td> 94</tr> 95</tbody> 96</table> 97</div> 98<div class="section" id="id141"> 99<h3><a class="subsection-title" href="#example" name="example">Example</a></h3> 100<pre class="literal-block"> 101typedef <a href="./range-c.html" class="identifier">range_c</a><int,0,100> r; 102typedef advance_c< <a href="./begin.html" class="identifier">begin</a><r>::type,10 >::type first; 103typedef advance_c< <a href="./end.html" class="identifier">end</a><r>::type,-10 >::type last; 104 105<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< 106 <a href="./iterator-range.html" class="identifier">iterator_range</a><first,last> 107 , <a href="./range-c.html" class="identifier">range_c</a><int,10,90> 108 > )); 109</pre> 110</div> 111<div class="section" id="id142"> 112<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> 113<p><a class="reference internal" href="./sequences.html">Sequences</a>, <a class="reference internal" href="./views.html">Views</a>, <a class="reference internal" href="./filter-view.html">filter_view</a>, <a class="reference internal" href="./transform-view.html">transform_view</a>, <a class="reference internal" href="./joint-view.html">joint_view</a>, <a class="reference internal" href="./zip-view.html">zip_view</a>, <a class="reference internal" href="./max-element.html">max_element</a></p> 114<!-- Sequences/Views//joint_view --> 115</div> 116</div> 117 118<div class="footer-separator"></div> 119<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./filter-view.html" class="navigation-link">Prev</a> <a href="./joint-view.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./filter-view.html" class="navigation-link">Back</a> <a href="./joint-view.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./views.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> 120<td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> 121Distributed under the Boost Software License, Version 1.0. (See accompanying 122file 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> 123</html> 124