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<p>
This is the translator example from the tutorial. In this example the collection
type of relation is changed to allow the iteration of the container.
</p>
<p>
<a href="../../../../example/mighty_bimap.cpp" target="_top">Go to source code</a>
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<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">list_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">unordered_set_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">english</span> <span class="special">{};</span>
<span class="keyword">struct</span> <span class="identifier">spanish</span> <span class="special">{};</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<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>
<span class="keyword">typedef</span> <span class="identifier">bimap</span>
<span class="special">&lt;</span>
<span class="identifier">unordered_set_of</span><span class="special">&lt;</span> <span class="identifier">tagged</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">spanish</span> <span class="special">&gt;</span> <span class="special">&gt;,</span>
<span class="identifier">unordered_set_of</span><span class="special">&lt;</span> <span class="identifier">tagged</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">english</span> <span class="special">&gt;</span> <span class="special">&gt;,</span>
<span class="identifier">list_of_relation</span>
<span class="special">&gt;</span> <span class="identifier">translator</span><span class="special">;</span>
<span class="identifier">translator</span> <span class="identifier">trans</span><span class="special">;</span>
<span class="comment">// We have to use `push_back` because the collection of relations is</span>
<span class="comment">// a `list_of_relation`</span>
<span class="identifier">trans</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span> <span class="identifier">translator</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"hola"</span> <span class="special">,</span><span class="string">"hello"</span> <span class="special">)</span> <span class="special">);</span>
<span class="identifier">trans</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span> <span class="identifier">translator</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"adios"</span> <span class="special">,</span><span class="string">"goodbye"</span> <span class="special">)</span> <span class="special">);</span>
<span class="identifier">trans</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span> <span class="identifier">translator</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"rosa"</span> <span class="special">,</span><span class="string">"rose"</span> <span class="special">)</span> <span class="special">);</span>
<span class="identifier">trans</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span> <span class="identifier">translator</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"mesa"</span> <span class="special">,</span><span class="string">"table"</span> <span class="special">)</span> <span class="special">);</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"enter a word"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">word</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">getline</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cin</span><span class="special">,</span><span class="identifier">word</span><span class="special">);</span>
<span class="comment">// Search the queried word on the from index (Spanish)</span>
<span class="identifier">translator</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span> <span class="identifier">is</span>
<span class="special">=</span> <span class="identifier">trans</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;().</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">is</span> <span class="special">!=</span> <span class="identifier">trans</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">is</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;()</span>
<span class="special">&lt;&lt;</span> <span class="string">" in English"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="comment">// Word not found in Spanish, try our luck in English</span>
<span class="identifier">translator</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span> <span class="identifier">ie</span>
<span class="special">=</span> <span class="identifier">trans</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;().</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">ie</span> <span class="special">!=</span> <span class="identifier">trans</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">ie</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;()</span>
<span class="special">&lt;&lt;</span> <span class="string">" in Spanish"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="comment">// Word not found, show the possible translations</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"No such word in the dictionary"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"These are the possible translations"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="keyword">for</span><span class="special">(</span> <span class="identifier">translator</span><span class="special">::</span><span class="identifier">const_iterator</span>
<span class="identifier">i</span> <span class="special">=</span> <span class="identifier">trans</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span>
<span class="identifier">i_end</span> <span class="special">=</span> <span class="identifier">trans</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">i_end</span> <span class="special">;</span> <span class="special">++</span><span class="identifier">i</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;()</span>
<span class="special">&lt;&lt;</span> <span class="string">" &lt;---&gt; "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;()</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">}</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2006-2012 Matias Capeletto<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map"></a><a class="link" href="multiindex_to_bimap_path___bidirectional_map.html" title="MultiIndex to Bimap Path - Bidirectional Map">MultiIndex
to Bimap Path - Bidirectional Map</a>
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<p>
This is example 4 in Boost.MultiIndex documentation.
</p>
<div class="blurb">
<div class="titlepage"><div><div><p class="title"><b></b></p></div></div></div>
<p>
This example shows how to construct a bidirectional map with multi_index_container.
By a bidirectional map we mean a container of elements of <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="keyword">const</span> <span class="identifier">FromType</span><span class="special">,</span><span class="keyword">const</span> <span class="identifier">ToType</span><span class="special">&gt;</span></code> such that no two elements exists with
the same first or second value (<code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">map</span></code> only
guarantees uniqueness of the first member). Fast look-up is provided for
both keys. The program features a tiny Spanish-English dictionary with on-line
query of words in both languages.
</p>
</div>
<h5>
<a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.h0"></a>
<span class="phrase"><a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.boost_multiindex"></a></span><a class="link" href="multiindex_to_bimap_path___bidirectional_map.html#boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.boost_multiindex">Boost.MultiIndex</a>
</h5>
<p>
<a href="../../../../example/mi_to_b_path/mi_bidirectional_map.cpp" target="_top">Go to source
code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">tokenizer</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index_container</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index</span><span class="special">/</span><span class="identifier">key_extractors</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index</span><span class="special">/</span><span class="identifier">ordered_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">;</span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">multi_index</span><span class="special">;</span>
<span class="comment">// tags for accessing both sides of a bidirectional map</span>
<span class="keyword">struct</span> <span class="identifier">from</span> <span class="special">{};</span>
<span class="keyword">struct</span> <span class="identifier">to</span> <span class="special">{};</span>
<span class="comment">// The class template bidirectional_map wraps the specification</span>
<span class="comment">// of a bidirectional map based on multi_index_container.</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">FromType</span><span class="special">,</span><span class="keyword">typename</span> <span class="identifier">ToType</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">bidirectional_map</span>
<span class="special">{</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">FromType</span><span class="special">,</span><span class="identifier">ToType</span><span class="special">&gt;</span> <span class="identifier">value_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">multi_index_container</span><span class="special">&lt;</span>
<span class="identifier">value_type</span><span class="special">,</span>
<span class="identifier">indexed_by</span>
<span class="special">&lt;</span>
<span class="identifier">ordered_unique</span>
<span class="special">&lt;</span>
<span class="identifier">tag</span><span class="special">&lt;</span><span class="identifier">from</span><span class="special">&gt;,</span> <span class="identifier">member</span><span class="special">&lt;</span><span class="identifier">value_type</span><span class="special">,</span><span class="identifier">FromType</span><span class="special">,&amp;</span><span class="identifier">value_type</span><span class="special">::</span><span class="identifier">first</span><span class="special">&gt;</span>
<span class="special">&gt;,</span>
<span class="identifier">ordered_unique</span>
<span class="special">&lt;</span>
<span class="identifier">tag</span><span class="special">&lt;</span><span class="identifier">to</span><span class="special">&gt;,</span> <span class="identifier">member</span><span class="special">&lt;</span><span class="identifier">value_type</span><span class="special">,</span><span class="identifier">ToType</span><span class="special">,&amp;</span><span class="identifier">value_type</span><span class="special">::</span><span class="identifier">second</span><span class="special">&gt;</span>
<span class="special">&gt;</span>
<span class="special">&gt;</span>
<span class="special">&gt;</span> <span class="identifier">type</span><span class="special">;</span>
<span class="special">};</span>
<span class="comment">// A dictionary is a bidirectional map from strings to strings</span>
<span class="keyword">typedef</span> <span class="identifier">bidirectional_map</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">dictionary</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">dictionary</span> <span class="identifier">d</span><span class="special">;</span>
<span class="comment">// Fill up our microdictionary.</span>
<span class="comment">// first members Spanish, second members English.</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"hola"</span><span class="special">,</span><span class="string">"hello"</span><span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"adios"</span><span class="special">,</span><span class="string">"goodbye"</span><span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"rosa"</span><span class="special">,</span><span class="string">"rose"</span><span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">(</span><span class="string">"mesa"</span><span class="special">,</span><span class="string">"table"</span><span class="special">));</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"enter a word"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">word</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">getline</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cin</span><span class="special">,</span><span class="identifier">word</span><span class="special">);</span>
<span class="comment">// search the queried word on the from index (Spanish)</span>
<span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">from</span><span class="special">&gt;().</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="comment">// the second part of the element is the equivalent in English</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">it</span><span class="special">-&gt;</span><span class="identifier">second</span> <span class="special">&lt;&lt;</span> <span class="string">" in English"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="comment">// word not found in Spanish, try our luck in English</span>
<span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">index_iterator</span><span class="special">&lt;</span><span class="identifier">to</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">it2</span> <span class="special">=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">to</span><span class="special">&gt;().</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">it2</span> <span class="special">!=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">to</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">it2</span><span class="special">-&gt;</span><span class="identifier">first</span> <span class="special">&lt;&lt;</span> <span class="string">" in Spanish"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"No such word in the dictionary"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
<h5>
<a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.h1"></a>
<span class="phrase"><a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.boost_bimap"></a></span><a class="link" href="multiindex_to_bimap_path___bidirectional_map.html#boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.boost_bimap">Boost.Bimap</a>
</h5>
<p>
<a href="../../../../example/mi_to_b_path/bidirectional_map.cpp" target="_top">Go to source
code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">tokenizer</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<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>
<span class="comment">// A dictionary is a bidirectional map from strings to strings</span>
<span class="keyword">typedef</span> <span class="identifier">bimap</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">&gt;</span> <span class="identifier">dictionary</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">value_type</span> <span class="identifier">translation</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">dictionary</span> <span class="identifier">d</span><span class="special">;</span>
<span class="comment">// Fill up our microdictionary.</span>
<span class="comment">// first members Spanish, second members English.</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"hola"</span> <span class="special">,</span><span class="string">"hello"</span> <span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"adios"</span><span class="special">,</span><span class="string">"goodbye"</span><span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"rosa"</span> <span class="special">,</span><span class="string">"rose"</span> <span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"mesa"</span> <span class="special">,</span><span class="string">"table"</span> <span class="special">));</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"enter a word"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">word</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">getline</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cin</span><span class="special">,</span><span class="identifier">word</span><span class="special">);</span>
<span class="comment">// search the queried word on the from index (Spanish)</span>
<span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">left_const_iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">left</span><span class="special">.</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">left</span><span class="special">.</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="comment">// the second part of the element is the equivalent in English</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">it</span><span class="special">-&gt;</span><span class="identifier">second</span> <a class="co" name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c0" href="multiindex_to_bimap_path___bidirectional_map.html#boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c1"><img src="../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a>
<span class="special">&lt;&lt;</span> <span class="string">" in English"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="comment">// word not found in Spanish, try our luck in English</span>
<span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">right_const_iterator</span> <span class="identifier">it2</span> <span class="special">=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">right</span><span class="special">.</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">it2</span> <span class="special">!=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">right</span><span class="special">.</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">it2</span><span class="special">-&gt;</span><span class="identifier">second</span> <a class="co" name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c2" href="multiindex_to_bimap_path___bidirectional_map.html#boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c3"><img src="../../../../../../doc/src/images/callouts/2.png" alt="2" border="0"></a>
<span class="special">&lt;&lt;</span> <span class="string">" in Spanish"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"No such word in the dictionary"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
<div class="calloutlist"><table border="0" summary="Callout list">
<tr>
<td width="5%" valign="top" align="left"><p><a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c1"></a><a href="#boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c0"><img src="../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a> </p></td>
<td valign="top" align="left"><p>
<code class="computeroutput"><span class="identifier">it</span></code> is an iterator of
the left view, so <code class="computeroutput"><span class="identifier">it</span><span class="special">-&gt;</span><span class="identifier">second</span></code>
refers to the right element of the relation, the word in english
</p></td>
</tr>
<tr>
<td width="5%" valign="top" align="left"><p><a name="boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c3"></a><a href="#boost_bimap.examples.multiindex_to_bimap_path___bidirectional_map.c2"><img src="../../../../../../doc/src/images/callouts/2.png" alt="2" border="0"></a> </p></td>
<td valign="top" align="left"><p>
<code class="computeroutput"><span class="identifier">it2</span></code> is an iterator of
the right view, so <code class="computeroutput"><span class="identifier">it2</span><span class="special">-&gt;</span><span class="identifier">second</span></code>
refers to the left element of the relation, the word in spanish
</p></td>
</tr>
</table></div>
<p>
Or better, using tags...
</p>
<p>
<a href="../../../../example/mi_to_b_path/tagged_bidirectional_map.cpp" target="_top">Go to
source code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<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>
<span class="comment">// tags</span>
<span class="keyword">struct</span> <span class="identifier">spanish</span> <span class="special">{};</span>
<span class="keyword">struct</span> <span class="identifier">english</span> <span class="special">{};</span>
<span class="comment">// A dictionary is a bidirectional map from strings to strings</span>
<span class="keyword">typedef</span> <span class="identifier">bimap</span>
<span class="special">&lt;</span>
<span class="identifier">tagged</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span><span class="identifier">spanish</span> <span class="special">&gt;,</span> <span class="identifier">tagged</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span><span class="identifier">english</span> <span class="special">&gt;</span>
<span class="special">&gt;</span> <span class="identifier">dictionary</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">value_type</span> <span class="identifier">translation</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">dictionary</span> <span class="identifier">d</span><span class="special">;</span>
<span class="comment">// Fill up our microdictionary. </span>
<span class="comment">// first members Spanish, second members English.</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"hola"</span> <span class="special">,</span><span class="string">"hello"</span> <span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"adios"</span><span class="special">,</span><span class="string">"goodbye"</span><span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"rosa"</span> <span class="special">,</span><span class="string">"rose"</span> <span class="special">));</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span> <span class="identifier">translation</span><span class="special">(</span><span class="string">"mesa"</span> <span class="special">,</span><span class="string">"table"</span> <span class="special">));</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"enter a word"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">word</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">getline</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">cin</span><span class="special">,</span><span class="identifier">word</span><span class="special">);</span>
<span class="comment">// search the queried word on the from index (Spanish) */</span>
<span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span> <span class="identifier">it</span> <span class="special">=</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;().</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">it</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="string">" in English"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="comment">// word not found in Spanish, try our luck in English</span>
<span class="identifier">dictionary</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span> <span class="identifier">it2</span> <span class="special">=</span>
<span class="identifier">d</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;().</span><span class="identifier">find</span><span class="special">(</span><span class="identifier">word</span><span class="special">);</span>
<span class="keyword">if</span><span class="special">(</span> <span class="identifier">it2</span> <span class="special">!=</span> <span class="identifier">d</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">english</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">" is said "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">it2</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">spanish</span><span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="string">" in Spanish"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"No such word in the dictionary"</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2006-2012 Matias Capeletto<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
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<a name="boost_bimap.examples.multiindex_to_bimap_path___hashed_indices"></a><a class="link" href="multiindex_to_bimap_path___hashed_indices.html" title="MultiIndex to Bimap Path - Hashed indices">MultiIndex
to Bimap Path - Hashed indices</a>
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<p>
This is example 8 of Boost.MultiIndex.
</p>
<div class="blurb">
<div class="titlepage"><div><div><p class="title"><b></b></p></div></div></div>
<p>
Hashed indices can be used as an alternative to ordered indices when fast
look-up is needed and sorting information is of no interest. The example
features a word counter where duplicate entries are checked by means of a
hashed index.
</p>
</div>
<h5>
<a name="boost_bimap.examples.multiindex_to_bimap_path___hashed_indices.h0"></a>
<span class="phrase"><a name="boost_bimap.examples.multiindex_to_bimap_path___hashed_indices.boost_multiindex"></a></span><a class="link" href="multiindex_to_bimap_path___hashed_indices.html#boost_bimap.examples.multiindex_to_bimap_path___hashed_indices.boost_multiindex">Boost.MultiIndex</a>
</h5>
<p>
<a href="../../../../example/mi_to_b_path/mi_hashed_indices.cpp" target="_top">Go to source
code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iomanip</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">tokenizer</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index_container</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index</span><span class="special">/</span><span class="identifier">key_extractors</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index</span><span class="special">/</span><span class="identifier">ordered_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">multi_index</span><span class="special">/</span><span class="identifier">hashed_index</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">lambda</span><span class="special">/</span><span class="identifier">lambda</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">multi_index</span><span class="special">;</span>
<span class="keyword">namespace</span> <span class="identifier">bl</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">lambda</span><span class="special">;</span>
<span class="comment">// word_counter keeps the ocurrences of words inserted. A hashed</span>
<span class="comment">// index allows for fast checking of preexisting entries.</span>
<span class="keyword">struct</span> <span class="identifier">word_counter_entry</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">word</span><span class="special">;</span>
<span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">occurrences</span><span class="special">;</span>
<span class="identifier">word_counter_entry</span><span class="special">(</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">word_</span> <span class="special">)</span> <span class="special">:</span> <span class="identifier">word</span><span class="special">(</span><span class="identifier">word_</span><span class="special">),</span> <span class="identifier">occurrences</span><span class="special">(</span><span class="number">0</span><span class="special">)</span> <span class="special">{}</span>
<span class="special">};</span>
<span class="keyword">typedef</span> <span class="identifier">multi_index_container</span>
<span class="special">&lt;</span>
<span class="identifier">word_counter_entry</span><span class="special">,</span>
<span class="identifier">indexed_by</span>
<span class="special">&lt;</span>
<span class="identifier">ordered_non_unique</span>
<span class="special">&lt;</span>
<span class="identifier">BOOST_MULTI_INDEX_MEMBER</span><span class="special">(</span>
<span class="identifier">word_counter_entry</span><span class="special">,</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">,</span><span class="identifier">occurrences</span><span class="special">),</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">greater</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">&gt;</span>
<span class="special">&gt;,</span>
<span class="identifier">hashed_unique</span>
<span class="special">&lt;</span>
<span class="identifier">BOOST_MULTI_INDEX_MEMBER</span><span class="special">(</span><span class="identifier">word_counter_entry</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">word</span><span class="special">)</span>
<span class="special">&gt;</span>
<span class="special">&gt;</span>
<span class="special">&gt;</span> <span class="identifier">word_counter</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">tokenizer</span><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">char_separator</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">text_tokenizer</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">text</span><span class="special">=</span>
<span class="string">"En un lugar de la Mancha, de cuyo nombre no quiero acordarme... "</span>
<span class="string">"...snip..."</span>
<span class="string">"...no se salga un punto de la verdad."</span><span class="special">;</span>
<span class="comment">// feed the text into the container</span>
<span class="identifier">word_counter</span> <span class="identifier">wc</span><span class="special">;</span>
<span class="identifier">text_tokenizer</span> <span class="identifier">tok</span><span class="special">(</span><span class="identifier">text</span><span class="special">,</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">char_separator</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;(</span><span class="string">" \t\n.,;:!?'\"-"</span><span class="special">));</span>
<span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">total_occurrences</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
<span class="keyword">for</span><span class="special">(</span> <span class="identifier">text_tokenizer</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">tok</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">it_end</span> <span class="special">=</span> <span class="identifier">tok</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span>
<span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">it_end</span> <span class="special">;</span> <span class="special">++</span><span class="identifier">it</span> <span class="special">)</span>
<span class="special">{</span>
<span class="special">++</span><span class="identifier">total_occurrences</span><span class="special">;</span>
<span class="identifier">word_counter</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">wit</span> <span class="special">=</span> <span class="identifier">wc</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(*</span><span class="identifier">it</span><span class="special">).</span><span class="identifier">first</span><span class="special">;</span>
<span class="identifier">wc</span><span class="special">.</span><span class="identifier">modify_key</span><span class="special">(</span> <span class="identifier">wit</span><span class="special">,</span> <span class="special">++</span> <span class="identifier">bl</span><span class="special">::</span><span class="identifier">_1</span> <span class="special">);</span>
<span class="special">}</span>
<span class="comment">// list words by frequency of appearance</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">fixed</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">setprecision</span><span class="special">(</span><span class="number">2</span><span class="special">);</span>
<span class="keyword">for</span><span class="special">(</span> <span class="identifier">word_counter</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">wit</span> <span class="special">=</span> <span class="identifier">wc</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">wit_end</span><span class="special">=</span><span class="identifier">wc</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span>
<span class="identifier">wit</span> <span class="special">!=</span> <span class="identifier">wit_end</span><span class="special">;</span> <span class="special">++</span><span class="identifier">wit</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">setw</span><span class="special">(</span><span class="number">11</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">wit</span><span class="special">-&gt;</span><span class="identifier">word</span> <span class="special">&lt;&lt;</span> <span class="string">": "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">setw</span><span class="special">(</span><span class="number">5</span><span class="special">)</span>
<span class="special">&lt;&lt;</span> <span class="number">100.0</span> <span class="special">*</span> <span class="identifier">wit</span><span class="special">-&gt;</span><span class="identifier">occurrences</span> <span class="special">/</span> <span class="identifier">total_occurrences</span> <span class="special">&lt;&lt;</span> <span class="string">"%"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
<h5>
<a name="boost_bimap.examples.multiindex_to_bimap_path___hashed_indices.h1"></a>
<span class="phrase"><a name="boost_bimap.examples.multiindex_to_bimap_path___hashed_indices.boost_bimap"></a></span><a class="link" href="multiindex_to_bimap_path___hashed_indices.html#boost_bimap.examples.multiindex_to_bimap_path___hashed_indices.boost_bimap">Boost.Bimap</a>
</h5>
<p>
<a href="../../../../example/mi_to_b_path/hashed_indices.cpp" target="_top">Go to source code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iomanip</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">tokenizer</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">unordered_set_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">multiset_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">bimap</span><span class="special">/</span><span class="identifier">support</span><span class="special">/</span><span class="identifier">lambda</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
<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>
<span class="keyword">struct</span> <span class="identifier">word</span> <span class="special">{};</span>
<span class="keyword">struct</span> <span class="identifier">occurrences</span> <span class="special">{};</span>
<span class="keyword">typedef</span> <span class="identifier">bimap</span>
<span class="special">&lt;</span>
<span class="identifier">multiset_of</span><span class="special">&lt;</span> <span class="identifier">tagged</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">,</span><span class="identifier">occurrences</span><span class="special">&gt;,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">greater</span><span class="special">&lt;</span><span class="keyword">unsigned</span> <span class="keyword">int</span><span class="special">&gt;</span> <span class="special">&gt;,</span>
<span class="identifier">unordered_set_of</span><span class="special">&lt;</span> <span class="identifier">tagged</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">word</span><span class="special">&gt;</span> <span class="special">&gt;</span>
<span class="special">&gt;</span> <span class="identifier">word_counter</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">tokenizer</span><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">char_separator</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">text_tokenizer</span><span class="special">;</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="identifier">text</span><span class="special">=</span>
<span class="string">"Relations between data in the STL are represented with maps."</span>
<span class="string">"A map is a directed relation, by using it you are representing "</span>
<span class="string">"a mapping. In this directed relation, the first type is related to "</span>
<span class="string">"the second type but it is not true that the inverse relationship "</span>
<span class="string">"holds. This is useful in a lot of situations, but there are some "</span>
<span class="string">"relationships that are bidirectional by nature."</span><span class="special">;</span>
<span class="comment">// feed the text into the container</span>
<span class="identifier">word_counter</span> <span class="identifier">wc</span><span class="special">;</span>
<span class="identifier">text_tokenizer</span> <span class="identifier">tok</span><span class="special">(</span><span class="identifier">text</span><span class="special">,</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">char_separator</span><span class="special">&lt;</span><span class="keyword">char</span><span class="special">&gt;(</span><span class="string">" \t\n.,;:!?'\"-"</span><span class="special">));</span>
<span class="keyword">unsigned</span> <span class="keyword">int</span> <span class="identifier">total_occurrences</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
<span class="keyword">for</span><span class="special">(</span> <span class="identifier">text_tokenizer</span><span class="special">::</span><span class="identifier">const_iterator</span> <span class="identifier">it</span> <span class="special">=</span> <span class="identifier">tok</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">it_end</span> <span class="special">=</span> <span class="identifier">tok</span><span class="special">.</span><span class="identifier">end</span><span class="special">();</span>
<span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">it_end</span> <span class="special">;</span> <span class="special">++</span><span class="identifier">it</span> <span class="special">)</span>
<span class="special">{</span>
<span class="special">++</span><span class="identifier">total_occurrences</span><span class="special">;</span>
<span class="identifier">word_counter</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;::</span><span class="identifier">iterator</span> <span class="identifier">wit</span> <span class="special">=</span>
<span class="identifier">wc</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;().</span><span class="identifier">insert</span><span class="special">(</span>
<span class="identifier">word_counter</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;::</span><span class="identifier">value_type</span><span class="special">(</span><span class="number">0</span><span class="special">,*</span><span class="identifier">it</span><span class="special">)</span>
<span class="special">).</span><span class="identifier">first</span><span class="special">;</span>
<span class="identifier">wc</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;().</span><span class="identifier">modify_key</span><span class="special">(</span> <span class="identifier">wit</span><span class="special">,</span> <span class="special">++</span><span class="identifier">_key</span><span class="special">);</span>
<span class="special">}</span>
<span class="comment">// list words by frequency of appearance</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">fixed</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">setprecision</span><span class="special">(</span><span class="number">2</span><span class="special">);</span>
<span class="keyword">for</span><span class="special">(</span> <span class="identifier">word_counter</span><span class="special">::</span><span class="identifier">map_by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span>
<span class="identifier">wit</span> <span class="special">=</span> <span class="identifier">wc</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;().</span><span class="identifier">begin</span><span class="special">(),</span>
<span class="identifier">wit_end</span> <span class="special">=</span> <span class="identifier">wc</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">();</span>
<span class="identifier">wit</span> <span class="special">!=</span> <span class="identifier">wit_end</span><span class="special">;</span> <span class="special">++</span><span class="identifier">wit</span> <span class="special">)</span>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">setw</span><span class="special">(</span><span class="number">15</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">wit</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">word</span><span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="string">": "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">setw</span><span class="special">(</span><span class="number">5</span><span class="special">)</span>
<span class="special">&lt;&lt;</span> <span class="number">100.0</span> <span class="special">*</span> <span class="identifier">wit</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">occurrences</span><span class="special">&gt;()</span> <span class="special">/</span> <span class="identifier">total_occurrences</span> <span class="special">&lt;&lt;</span> <span class="string">"%"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
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<div class="titlepage"><div><div><h3 class="title">
<a name="boost_bimap.examples.simple_bimap"></a><a class="link" href="simple_bimap.html" title="Simple Bimap">Simple Bimap</a>
</h3></div></div></div>
<p>
This is the example from the one minute tutorial section.
</p>
<p>
<a href="../../../../example/simple_bimap.cpp" target="_top">Go to source code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">string</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">&gt;</span>
<span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">class</span> <span class="identifier">MapType</span> <span class="special">&gt;</span>
<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">&amp;</span> <span class="identifier">map</span><span class="special">,</span>
<span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span> <span class="identifier">separator</span><span class="special">,</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">ostream</span> <span class="special">&amp;</span> <span class="identifier">os</span> <span class="special">)</span>
<span class="special">{</span>
<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>
<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>
<span class="special">{</span>
<span class="identifier">os</span> <span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">first</span> <span class="special">&lt;&lt;</span> <span class="identifier">separator</span> <span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">second</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="special">}</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<span class="comment">// Soccer World cup</span>
<span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">bimap</span><span class="special">&lt;</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">&gt;</span> <span class="identifier">results_bimap</span><span class="special">;</span>
<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>
<span class="identifier">results_bimap</span> <span class="identifier">results</span><span class="special">;</span>
<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>
<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>
<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>
<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>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"The number of countries is "</span> <span class="special">&lt;&lt;</span> <span class="identifier">results</span><span class="special">.</span><span class="identifier">size</span><span class="special">()</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"The winner is "</span> <span class="special">&lt;&lt;</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>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"Countries names ordered by their final position:"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="comment">// results.right works like a std::map&lt; int, std::string &gt;</span>
<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>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
<span class="special">&lt;&lt;</span> <span class="string">"Countries names ordered alphabetically along with"</span>
<span class="string">"their final position:"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="comment">// results.left works like a std::map&lt; std::string, int &gt;</span>
<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>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
<p>
You can rewrite it using tags to gain readability.
</p>
<p>
<a href="../../../../example/tagged_simple_bimap.cpp" target="_top">Go to source code</a>
</p>
<p>
</p>
<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
<span class="preprocessor">#include</span> <span class="special">&lt;</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">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">country</span> <span class="special">{};</span>
<span class="keyword">struct</span> <span class="identifier">place</span> <span class="special">{};</span>
<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
<span class="special">{</span>
<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>
<span class="comment">// Soccer World cup.</span>
<span class="keyword">typedef</span> <span class="identifier">bimap</span>
<span class="special">&lt;</span>
<span class="identifier">tagged</span><span class="special">&lt;</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">&gt;,</span>
<span class="identifier">tagged</span><span class="special">&lt;</span> <span class="keyword">int</span> <span class="special">,</span> <span class="identifier">place</span> <span class="special">&gt;</span>
<span class="special">&gt;</span> <span class="identifier">results_bimap</span><span class="special">;</span>
<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>
<span class="identifier">results_bimap</span> <span class="identifier">results</span><span class="special">;</span>
<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>
<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>
<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>
<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>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="string">"Countries names ordered by their final position:"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<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">&lt;</span><span class="identifier">place</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span>
<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">&lt;</span><span class="identifier">place</span><span class="special">&gt;().</span><span class="identifier">begin</span><span class="special">(),</span>
<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">&lt;</span><span class="identifier">place</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</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>
<span class="special">{</span>
<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">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">place</span> <span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="string">") "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">country</span><span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span>
<span class="special">&lt;&lt;</span> <span class="string">"Countries names ordered alfabetically along with"</span>
<span class="string">"their final position:"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<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">&lt;</span><span class="identifier">country</span><span class="special">&gt;::</span><span class="identifier">const_iterator</span>
<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">&lt;</span><span class="identifier">country</span><span class="special">&gt;().</span><span class="identifier">begin</span><span class="special">(),</span>
<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">&lt;</span><span class="identifier">country</span><span class="special">&gt;().</span><span class="identifier">end</span><span class="special">()</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>
<span class="special">{</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">country</span><span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="string">" ends "</span>
<span class="special">&lt;&lt;</span> <span class="identifier">i</span><span class="special">-&gt;</span><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">place</span> <span class="special">&gt;()</span> <span class="special">&lt;&lt;</span> <span class="string">"&#186;"</span>
<span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
<span class="special">}</span>
<span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
<span class="special">}</span>
</pre>
<p>
</p>
<div class="calloutlist"><table border="0" summary="Callout list">
<tr>
<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>
<td valign="top" align="left"><p>
<code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">place</span><span class="special">&gt;()</span></code>
is equivalent to <code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">right</span></code>
</p></td>
</tr>
<tr>
<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>
<td valign="top" align="left"><p>
<code class="computeroutput"><span class="identifier">get</span><span class="special">&lt;</span><span class="identifier">Tag</span><span class="special">&gt;</span></code>
works for each view of the bimap
</p></td>
</tr>
<tr>
<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>
<td valign="top" align="left"><p>
<code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">by</span><span class="special">&lt;</span><span class="identifier">country</span><span class="special">&gt;()</span></code>
is equivalent to <code class="computeroutput"><span class="identifier">results</span><span class="special">.</span><span class="identifier">left</span></code>
</p></td>
</tr>
</table></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2006-2012 Matias Capeletto<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
</div></td>
</tr></table>
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