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24 | </div> | |
25 | <div class="section boost_bimap_examples_simple_bimap"> | |
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> | |
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