1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Forward Range</title> 5<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Chapter 1. Range 2.0"> 8<link rel="up" href="../concepts.html" title="Range Concepts"> 9<link rel="prev" href="single_pass_range.html" title="Single Pass Range"> 10<link rel="next" href="bidirectional_range.html" title="Bidirectional Range"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="single_pass_range.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="bidirectional_range.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h3 class="title"> 27<a name="range.concepts.forward_range"></a><a class="link" href="forward_range.html" title="Forward Range">Forward Range</a> 28</h3></div></div></div> 29<h5> 30<a name="range.concepts.forward_range.h0"></a> 31 <span class="phrase"><a name="range.concepts.forward_range.notation"></a></span><a class="link" href="forward_range.html#range.concepts.forward_range.notation">Notation</a> 32 </h5> 33<div class="informaltable"><table class="table"> 34<colgroup> 35<col> 36<col> 37</colgroup> 38<thead><tr></tr></thead> 39<tbody> 40<tr> 41<td> 42 <p> 43 <code class="computeroutput"><span class="identifier">X</span></code> 44 </p> 45 </td> 46<td> 47 <p> 48 A type that is a model of <a class="link" href="forward_range.html" title="Forward Range">Forward 49 Range</a>. 50 </p> 51 </td> 52</tr> 53<tr> 54<td> 55 <p> 56 <code class="computeroutput"><span class="identifier">a</span></code> 57 </p> 58 </td> 59<td> 60 <p> 61 Object of type X. 62 </p> 63 </td> 64</tr> 65</tbody> 66</table></div> 67<h5> 68<a name="range.concepts.forward_range.h1"></a> 69 <span class="phrase"><a name="range.concepts.forward_range.description"></a></span><a class="link" href="forward_range.html#range.concepts.forward_range.description">Description</a> 70 </h5> 71<p> 72 A range <code class="computeroutput"><span class="identifier">X</span></code> where <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">X</span><span class="special">>::</span><span class="identifier">type</span></code> is a model of <a href="../../../../../../libs/iterator/doc/new-iter-concepts.html#forward-traversal-iterators-lib-forward-traversal-iterators" target="_top">Forward 73 Traversal Iterator</a>. 74 </p> 75<h5> 76<a name="range.concepts.forward_range.h2"></a> 77 <span class="phrase"><a name="range.concepts.forward_range.refinement_of"></a></span><a class="link" href="forward_range.html#range.concepts.forward_range.refinement_of">Refinement 78 of</a> 79 </h5> 80<p> 81 <a class="link" href="single_pass_range.html" title="Single Pass Range">Single Pass Range</a> 82 </p> 83<h5> 84<a name="range.concepts.forward_range.h3"></a> 85 <span class="phrase"><a name="range.concepts.forward_range.associated_types"></a></span><a class="link" href="forward_range.html#range.concepts.forward_range.associated_types">Associated 86 types</a> 87 </h5> 88<div class="informaltable"><table class="table"> 89<colgroup> 90<col> 91<col> 92<col> 93</colgroup> 94<thead><tr></tr></thead> 95<tbody> 96<tr> 97<td> 98 <p> 99 Distance type 100 </p> 101 </td> 102<td> 103 <p> 104 <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_difference</span><span class="special"><</span><span class="identifier">X</span><span class="special">>::</span><span class="identifier">type</span></code> 105 </p> 106 </td> 107<td> 108 <p> 109 A signed integral type used to represent the distance between two 110 of the Range's iterators. This type must be the same as the iterator's 111 distance type. 112 </p> 113 </td> 114</tr> 115<tr> 116<td> 117 <p> 118 Size type 119 </p> 120 </td> 121<td> 122 <p> 123 <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">range_size</span><span class="special"><</span><span class="identifier">X</span><span class="special">>::</span><span class="identifier">type</span></code> 124 </p> 125 </td> 126<td> 127 <p> 128 An unsigned integral type that can represent any nonnegative value 129 of the Range's distance type. 130 </p> 131 </td> 132</tr> 133</tbody> 134</table></div> 135<h5> 136<a name="range.concepts.forward_range.h4"></a> 137 <span class="phrase"><a name="range.concepts.forward_range.see_also"></a></span><a class="link" href="forward_range.html#range.concepts.forward_range.see_also">See 138 also</a> 139 </h5> 140<p> 141 <a class="link" href="../reference/concept_implementation/semantics/metafunctions.html" title="Metafunctions">Implementation 142 of metafunctions</a> 143 </p> 144<p> 145 <a class="link" href="../reference/concept_implementation/semantics/functions.html" title="Functions">Implementation 146 of functions</a> 147 </p> 148</div> 149<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 150<td align="left"></td> 151<td align="right"><div class="copyright-footer">Copyright © 2003-2010 Thorsten Ottosen, 152 Neil Groves<p> 153 Distributed under the Boost Software License, Version 1.0. (See accompanying 154 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>) 155 </p> 156</div></td> 157</tr></table> 158<hr> 159<div class="spirit-nav"> 160<a accesskey="p" href="single_pass_range.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="bidirectional_range.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 161</div> 162</body> 163</html> 164
