1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Simple Bimap</title> 5<link rel="stylesheet" href="../../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. Boost.Bimap"> 8<link rel="up" href="../examples.html" title="Examples"> 9<link rel="prev" href="../examples.html" title="Examples"> 10<link rel="next" href="mighty_bimap.html" title="Mighty Bimap"> 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="../examples.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../examples.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="mighty_bimap.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="boost_bimap.examples.simple_bimap"></a><a class="link" href="simple_bimap.html" title="Simple Bimap">Simple Bimap</a> 28</h3></div></div></div> 29<p> 30 This is the example from the one minute tutorial section. 31 </p> 32<p> 33 <a href="../../../../example/simple_bimap.cpp" target="_top">Go to source code</a> 34 </p> 35<p> 36</p> 37<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">string</span><span class="special">></span> 38<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> 39 40<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 41 42<span class="keyword">template</span><span class="special"><</span> <span class="keyword">class</span> <span class="identifier">MapType</span> <span class="special">></span> 43<span class="keyword">void</span> <span class="identifier">print_map</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">MapType</span> <span class="special">&</span> <span class="identifier">map</span><span class="special">,</span> 44 <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&</span> <span class="identifier">separator</span><span class="special">,</span> 45 <span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&</span> <span class="identifier">os</span> <span class="special">)</span> 46<span class="special">{</span> 47 <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">MapType</span><span class="special">::</span><span class="identifier">const_iterator</span> <span class="identifier">const_iterator</span><span class="special">;</span> 48 49 <span class="keyword">for</span><span class="special">(</span> <span class="identifier">const_iterator</span> <span class="identifier">i</span> <span class="special">=</span> <span class="identifier">map</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">iend</span> <span class="special">=</span> <span class="identifier">map</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span> <span class="identifier">i</span> <span class="special">!=</span> <span class="identifier">iend</span><span class="special">;</span> <span class="special">++</span><span class="identifier">i</span> <span class="special">)</span> 50 <span class="special">{</span> 51 <span class="identifier">os</span> <span class="special"><<</span> <span class="identifier">i</span><span class="special">-></span><span class="identifier">first</span> <span class="special"><<</span> <span class="identifier">separator</span> <span class="special"><<</span> <span class="identifier">i</span><span class="special">-></span><span class="identifier">second</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 52 <span class="special">}</span> 53<span class="special">}</span> 54 55<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> 56<span class="special">{</span> 57 <span class="comment">// Soccer World cup</span> 58 59 <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">bimap</span><span class="special"><</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="keyword">int</span> <span class="special">></span> <span class="identifier">results_bimap</span><span class="special">;</span> 60 <span class="keyword">typedef</span> <span class="identifier">results_bimap</span><span class="special">::</span><span class="identifier">value_type</span> <span class="identifier">position</span><span class="special">;</span> 61 62 <span class="identifier">results_bimap</span> <span class="identifier">results</span><span class="special">;</span> 63 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"Argentina"</span> <span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">);</span> 64 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"Spain"</span> <span class="special">,</span><span class="number">2</span><span class="special">)</span> <span class="special">);</span> 65 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"Germany"</span> <span class="special">,</span><span class="number">3</span><span class="special">)</span> <span class="special">);</span> 66 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"France"</span> <span class="special">,</span><span class="number">4</span><span class="special">)</span> <span class="special">);</span> 67 68 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"The number of countries is "</span> <span class="special"><<</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">size</span><span class="special">()</span> 69 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 70 71 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"The winner is "</span> <span class="special"><<</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">right</span><span class="special">.</span><span class="identifier">at</span><span class="special">(</span><span class="number">1</span><span class="special">)</span> 72 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> 73 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 74 75 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Countries names ordered by their final position:"</span> 76 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 77 78 <span class="comment">// results.right works like a std::map< int, std::string ></span> 79 80 <span class="identifier">print_map</span><span class="special">(</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">right</span><span class="special">,</span> <span class="string">") "</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">);</span> 81 82 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> 83 <span class="special"><<</span> <span class="string">"Countries names ordered alphabetically along with"</span> 84 <span class="string">"their final position:"</span> 85 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 86 87 <span class="comment">// results.left works like a std::map< std::string, int ></span> 88 89 <span class="identifier">print_map</span><span class="special">(</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">left</span><span class="special">,</span> <span class="string">" ends in position "</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">);</span> 90 91 <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> 92<span class="special">}</span> 93</pre> 94<p> 95 </p> 96<p> 97 You can rewrite it using tags to gain readability. 98 </p> 99<p> 100 <a href="../../../../example/tagged_simple_bimap.cpp" target="_top">Go to source code</a> 101 </p> 102<p> 103</p> 104<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> 105 106<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 107 108<span class="keyword">struct</span> <span class="identifier">country</span> <span class="special">{};</span> 109<span class="keyword">struct</span> <span class="identifier">place</span> <span class="special">{};</span> 110 111<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> 112<span class="special">{</span> 113 <span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">bimaps</span><span class="special">;</span> 114 115 <span class="comment">// Soccer World cup.</span> 116 117 <span class="keyword">typedef</span> <span class="identifier">bimap</span> 118 <span class="special"><</span> 119 <span class="identifier">tagged</span><span class="special"><</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">country</span> <span class="special">>,</span> 120 <span class="identifier">tagged</span><span class="special"><</span> <span class="keyword">int</span> <span class="special">,</span> <span class="identifier">place</span> <span class="special">></span> 121 122 <span class="special">></span> <span class="identifier">results_bimap</span><span class="special">;</span> 123 124 <span class="keyword">typedef</span> <span class="identifier">results_bimap</span><span class="special">::</span><span class="identifier">value_type</span> <span class="identifier">position</span><span class="special">;</span> 125 126 <span class="identifier">results_bimap</span> <span class="identifier">results</span><span class="special">;</span> 127 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"Argentina"</span> <span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">);</span> 128 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"Spain"</span> <span class="special">,</span><span class="number">2</span><span class="special">)</span> <span class="special">);</span> 129 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"Germany"</span> <span class="special">,</span><span class="number">3</span><span class="special">)</span> <span class="special">);</span> 130 <span class="identifier">results</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">position</span><span class="special">(</span><span class="string">"France"</span> <span class="special">,</span><span class="number">4</span><span class="special">)</span> <span class="special">);</span> 131 132 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Countries names ordered by their final position:"</span> 133 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 134 135 <a class="co" name="boost_bimap.examples.simple_bimap.c0" href="simple_bimap.html#boost_bimap.examples.simple_bimap.c1"><img src="../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a><span class="keyword">for</span><span class="special">(</span> <span class="identifier">results_bimap</span><span class="special">::</span><span class="identifier">map_by</span><span class="special"><</span><span class="identifier">place</span><span class="special">>::</span><span class="identifier">const_iterator</span> 136 <span class="identifier">i</span> <span class="special">=</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special"><</span><span class="identifier">place</span><span class="special">>().</span><span class="identifier">begin</span><span class="special">(),</span> 137 <span class="identifier">iend</span> <span class="special">=</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special"><</span><span class="identifier">place</span><span class="special">>().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">;</span> 138 <span class="identifier">i</span> <span class="special">!=</span> <span class="identifier">iend</span><span class="special">;</span> <span class="special">++</span><span class="identifier">i</span> <span class="special">)</span> 139 <span class="special">{</span> 140 <a class="co" name="boost_bimap.examples.simple_bimap.c2" href="simple_bimap.html#boost_bimap.examples.simple_bimap.c3"><img src="../../../../../../doc/src/images/callouts/2.png" alt="2" border="0"></a><span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">i</span><span class="special">-></span><span class="identifier">get</span><span class="special"><</span><span class="identifier">place</span> <span class="special">>()</span> <span class="special"><<</span> <span class="string">") "</span> 141 <span class="special"><<</span> <span class="identifier">i</span><span class="special">-></span><span class="identifier">get</span><span class="special"><</span><span class="identifier">country</span><span class="special">>()</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 142 <span class="special">}</span> 143 144 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span> 145 <span class="special"><<</span> <span class="string">"Countries names ordered alfabetically along with"</span> 146 <span class="string">"their final position:"</span> 147 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 148 149 <a class="co" name="boost_bimap.examples.simple_bimap.c4" href="simple_bimap.html#boost_bimap.examples.simple_bimap.c5"><img src="../../../../../../doc/src/images/callouts/3.png" alt="3" border="0"></a><span class="keyword">for</span><span class="special">(</span> <span class="identifier">results_bimap</span><span class="special">::</span><span class="identifier">map_by</span><span class="special"><</span><span class="identifier">country</span><span class="special">>::</span><span class="identifier">const_iterator</span> 150 <span class="identifier">i</span> <span class="special">=</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special"><</span><span class="identifier">country</span><span class="special">>().</span><span class="identifier">begin</span><span class="special">(),</span> 151 <span class="identifier">iend</span> <span class="special">=</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special"><</span><span class="identifier">country</span><span class="special">>().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">;</span> 152 <span class="identifier">i</span> <span class="special">!=</span> <span class="identifier">iend</span><span class="special">;</span> <span class="special">++</span><span class="identifier">i</span> <span class="special">)</span> 153 <span class="special">{</span> 154 <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="identifier">i</span><span class="special">-></span><span class="identifier">get</span><span class="special"><</span><span class="identifier">country</span><span class="special">>()</span> <span class="special"><<</span> <span class="string">" ends "</span> 155 <span class="special"><<</span> <span class="identifier">i</span><span class="special">-></span><span class="identifier">get</span><span class="special"><</span><span class="identifier">place</span> <span class="special">>()</span> <span class="special"><<</span> <span class="string">"º"</span> 156 <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> 157 <span class="special">}</span> 158 159 <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> 160<span class="special">}</span> 161</pre> 162<p> 163 </p> 164<div class="calloutlist"><table border="0" summary="Callout list"> 165<tr> 166<td width="5%" valign="top" align="left"><p><a name="boost_bimap.examples.simple_bimap.c1"></a><a href="#boost_bimap.examples.simple_bimap.c0"><img src="../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a> </p></td> 167<td valign="top" align="left"><p> 168 <code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special"><</span><span class="identifier">place</span><span class="special">>()</span></code> 169 is equivalent to <code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">right</span></code> 170 </p></td> 171</tr> 172<tr> 173<td width="5%" valign="top" align="left"><p><a name="boost_bimap.examples.simple_bimap.c3"></a><a href="#boost_bimap.examples.simple_bimap.c2"><img src="../../../../../../doc/src/images/callouts/2.png" alt="2" border="0"></a> </p></td> 174<td valign="top" align="left"><p> 175 <code class="computeroutput"><span class="identifier">get</span><span class="special"><</span><span class="identifier">Tag</span><span class="special">></span></code> 176 works for each view of the bimap 177 </p></td> 178</tr> 179<tr> 180<td width="5%" valign="top" align="left"><p><a name="boost_bimap.examples.simple_bimap.c5"></a><a href="#boost_bimap.examples.simple_bimap.c4"><img src="../../../../../../doc/src/images/callouts/3.png" alt="3" border="0"></a> </p></td> 181<td valign="top" align="left"><p> 182 <code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special"><</span><span class="identifier">country</span><span class="special">>()</span></code> 183 is equivalent to <code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">left</span></code> 184 </p></td> 185</tr> 186</table></div> 187</div> 188<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 189<td align="left"></td> 190<td align="right"><div class="copyright-footer">Copyright © 2006-2012 Matias Capeletto<p> 191 Distributed under the Boost Software License, Version 1.0. (See accompanying 192 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>) 193 </p> 194</div></td> 195</tr></table> 196<hr> 197<div class="spirit-nav"> 198<a accesskey="p" href="../examples.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../examples.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="mighty_bimap.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 199</div> 200</body> 201</html> 202
