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<h1><img src="../../../../boost.png" alt="boost.png (6897 bytes)" align=
"middle" width="277" height="86">Boost.MultiIndex
<code>multi_index_container</code> reference</h1>
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<hr>
<h2>Contents</h2>
<ul>
<li><a href="#multi_index_container_fwd_synopsis">Header
<code>"boost/multi_index_container_fwd.hpp"</code> synopsis</a></li>
<li><a href="#synopsis">Header
<code>"boost/multi_index_container.hpp"</code> synopsis</a>
<ul>
<li><a href="#multi_index_container">Class template <code>multi_index_container</code></a>
<ul>
<li><a href="#complexity">Complexity</a></li>
<li><a href="#instantiation_types">Instantiation types</a></li>
<li><a href="#types">Nested types</a></li>
<li><a href="#nested_templates">Nested class templates</a></li>
<li><a href="#constructors">Constructors, copy and assignment</a></li>
<li><a href="#index_retrieval">Index retrieval operations</a></li>
<li><a href="#projection">Projection operations</a></li>
<li><a href="#serialization">Serialization</a></li>
</ul>
</li>
</ul>
</li>
</ul>
<h2>
<a name="multi_index_container_fwd_synopsis">Header
<a href="../../../../boost/multi_index_container_fwd.hpp"><code>"boost/multi_index_container_fwd.hpp"</code></a>
synopsis</a>
</h2>
<blockquote><pre>
<span class=keyword>namespace</span> <span class=identifier>boost</span><span class=special>{</span>
<span class=keyword>namespace</span> <span class=identifier>multi_index</span><span class=special>{</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</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>identity</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>&gt;</span> <span class=special>&gt;</span> <span class=special>&gt;,</span>
<span class=keyword>typename</span> <span class=identifier>Allocator</span><span class=special>=</span><span class=identifier>std</span><span class=special>::</span><span class=identifier>allocator</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>&gt;</span> <span class=special>&gt;</span>
<span class=keyword>class</span> <span class=identifier>multi_index_container</span><span class=special>;</span>
<span class=special>}</span> <span class=comment>// namespace boost::multi_index</span>
<span class=keyword>using</span> <span class=identifier>multi_index</span><span class=special>::</span><span class=identifier>multi_index_container</span><span class=special>;</span>
<span class=special>}</span> <span class=comment>// namespace boost</span>
</pre></blockquote>
<p>
<code>multi_index_container_fwd.hpp</code> forward declares the class template
<a href="#multi_index_container"><code>multi_index_container</code></a> and specifies its default parameters.
</p>
<h2>
<a name="synopsis">Header
<a href="../../../../boost/multi_index_container.hpp"><code>"boost/multi_index_container.hpp"</code></a>
synopsis</a>
</h2>
<blockquote><pre>
<span class=keyword>namespace</span> <span class=identifier>boost</span><span class=special>{</span>
<span class=keyword>namespace</span> <span class=identifier>multi_index</span><span class=special>{</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span><span class=special>&gt;</span>
<span class=keyword>class</span> <span class=identifier>multi_index_container</span><span class=special>;</span>
<span class=comment>// multi_index_container associated global class templates:</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span> <span class=keyword>struct</span> <span class=identifier>nth_index</span><span class=special>;</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span> <span class=keyword>struct</span> <span class=identifier>index</span><span class=special>;</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index_iterator</span><span class=special>;</span> <span class=comment><b>// deprecated</b></span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index_const_iterator</span><span class=special>;</span> <span class=comment><b>// deprecated</b></span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index_iterator</span><span class=special>;</span> <span class=comment><b>// deprecated</b></span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index_const_iterator</span><span class=special>;</span> <span class=comment><b>// deprecated</b></span>
<span class=comment>// multi_index_container global functions for index retrieval:</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>const</span> <span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>const</span> <span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>);</span>
<span class=comment>// multi_index_container global functions for projection of iterators:</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>);</span>
<span class=comment>// comparison:</span>
<span class=comment>// <b>OP</b> is any of ==,&lt;,!=,&gt;,&gt;=,&lt;=</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Value1</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList1</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator1</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value2</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList2</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator2</span>
<span class=special>&gt;</span>
<span class=keyword>bool</span> <span class=keyword>operator</span> <b><i>OP</i></b><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value1</span><span class=special>,</span><span class=identifier>IndexSpecifierList1</span><span class=special>,</span><span class=identifier>Allocator1</span><span class=special>&gt;&amp;</span> <span class=identifier>x</span><span class=special>,</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value2</span><span class=special>,</span><span class=identifier>IndexSpecifierList2</span><span class=special>,</span><span class=identifier>Allocator2</span><span class=special>&gt;&amp;</span> <span class=identifier>y</span><span class=special>);</span>
<span class=comment>// specialized algorithms:</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span><span class=special>&gt;</span>
<span class=keyword>void</span> <span class=identifier>swap</span><span class=special>(</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>x</span><span class=special>,</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>y</span><span class=special>);</span>
<span class=special>}</span> <span class=comment>// namespace boost::multi_index</span>
<span class=keyword>using</span> <span class=identifier>multi_index</span><span class=special>::</span><span class=identifier>multi_index_container</span><span class=special>;</span>
<span class=keyword>using</span> <span class=identifier>multi_index</span><span class=special>::</span><span class=identifier>get</span><span class=special>;</span>
<span class=keyword>using</span> <span class=identifier>multi_index</span><span class=special>::</span><span class=identifier>project</span><span class=special>;</span>
<span class=special>}</span> <span class=comment>// namespace boost</span>
</pre></blockquote>
<h3><a name="multi_index_container">
Class template <code>multi_index_container</code>
</a></h3>
<p>
This is the main component of Boost.MultiIndex. A <code>multi_index_container</code>
is a container class template holding a compile-time user-defined list of
<a href="indices.html">indices</a>. These indices provide different interfaces
for the management of the elements of the <code>multi_index_container</code>. By itself,
<code>multi_index_container</code> only provides basic functionality for construction
and for access to the indices held.
</p>
<p>
A <code>multi_index_container</code> type is instantiated with the type of the
elements contained and a non-empty
<a href="../../../../libs/mpl/doc/refmanual/forward-sequence.html">
<code>MPL Forward Sequence</code></a> specifying which indices conform the
class.
</p>
<p>
For convenience of use, all public methods and types of the first index
specified are inherited by <code>multi_index_container</code>. This also includes global
operators and functions associated with the index (vg. comparison and
<code>swap</code>.)
</p>
<blockquote><pre>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</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>identity</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>&gt;</span> <span class=special>&gt;</span> <span class=special>&gt;,</span>
<span class=keyword>typename</span> <span class=identifier>Allocator</span><span class=special>=</span><span class=identifier>std</span><span class=special>::</span><span class=identifier>allocator</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>&gt;</span> <span class=special>&gt;</span>
<span class=keyword>class</span> <span class=identifier>multi_index_container</span>
<span class=special>{</span>
<span class=keyword>public</span><span class=special>:</span>
<span class=comment>// types:</span>
<span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>ctor_args_list</span><span class=special>;</span>
<span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>index_specifier_type_list</span><span class=special>;</span>
<span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>index_type_list</span><span class=special>;</span>
<span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>iterator_type_list</span><span class=special>;</span>
<span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>const_iterator_type_list</span><span class=special>;</span>
<span class=keyword>typedef</span> <span class=identifier>Allocator</span> <span class=identifier>allocator_type</span><span class=special>;</span>
<span class=comment>// nested class templates:</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index</span> <span class=special>{</span><span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>type</span><span class=special>;};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index</span> <span class=special>{</span><span class=keyword>typedef</span> <b>implementation defined</b> <span class=identifier>type</span><span class=special>;};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span><span class=keyword>typedef</span> <b><span class=identifier>implementation</span> <span class=identifier>defined</span></b> <span class=identifier>type</span><span class=special>;};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index_const_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span><span class=keyword>typedef</span> <b><span class=identifier>implementation</span> <span class=identifier>defined</span></b> <span class=identifier>type</span><span class=special>;};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span><span class=keyword>typedef</span> <b><span class=identifier>implementation</span> <span class=identifier>defined</span></b> <span class=identifier>type</span><span class=special>;};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index_const_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span><span class=keyword>typedef</span> <b><span class=identifier>implementation</span> <span class=identifier>defined</span></b> <span class=identifier>type</span><span class=special>;};</span>
<span class=comment>// construct/copy/destroy:</span>
<span class=keyword>explicit</span> <span class=identifier>multi_index_container</span><span class=special>(
</span><span class=keyword>const</span> <span class=identifier>ctor_args_list</span><span class=special>&amp;</span> <span class=identifier>args_list</span><span class=special>=</span><span class=identifier>ctor_args_list</span><span class=special>(),
</span><span class=keyword>const</span> <span class=identifier>allocator_type</span><span class=special>&amp;</span> <span class=identifier>al</span><span class=special>=</span><span class=identifier>allocator_type</span><span class=special>());</span>
<span class=keyword>explicit</span> <span class=identifier>multi_index_container</span><span class=special>(</span><span class=keyword>const</span> <span class=identifier>allocator_type</span><span class=special>&amp;</span> <span class=identifier>al</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>InputIterator</span><span class=special>&gt;</span>
<span class=identifier>multi_index_container</span><span class=special>(</span>
<span class=identifier>InputIterator</span> <span class=identifier>first</span><span class=special>,</span><span class=identifier>InputIterator</span> <span class=identifier>last</span><span class=special>,</span>
<span class=keyword>const</span> <span class=identifier>ctor_args_list</span><span class=special>&amp;</span> <span class=identifier>args_list</span><span class=special>=</span><span class=identifier>ctor_args_list</span><span class=special>(),
</span><span class=keyword>const</span> <span class=identifier>allocator_type</span><span class=special>&amp;</span> <span class=identifier>al</span><span class=special>=</span><span class=identifier>allocator_type</span><span class=special>());</span>
<span class=identifier>multi_index_container</span><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>x</span><span class=special>);</span>
<span class=special>~</span><span class=identifier>multi_index_container</span><span class=special>();</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=keyword>operator</span><span class=special>=(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>x</span><span class=special>);</span>
<span class=identifier>allocator_type</span> <span class=identifier>get_allocator</span><span class=special>()</span><span class=keyword>const</span><span class=special>;</span>
<span class=comment>// retrieval of indices</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span> <span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span> <span class=identifier>get</span><span class=special>();</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span> <span class=keyword>const</span> <span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span> <span class=identifier>get</span><span class=special>()</span><span class=keyword>const</span><span class=special>;</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span> <span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span> <span class=identifier>get</span><span class=special>()</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span> <span class=keyword>const</span> <span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span> <span class=identifier>get</span><span class=special>()</span><span class=keyword>const</span><span class=special>;</span>
<span class=comment>// projection of iterators</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>iterator</span> <span class=identifier>project</span><span class=special>(</span><span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span> <span class=identifier>project</span><span class=special>(</span><span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span><span class=keyword>const</span><span class=special>;</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>iterator</span> <span class=identifier>project</span><span class=special>(</span><span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>);</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span> <span class=identifier>project</span><span class=special>(</span><span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span><span class=keyword>const</span><span class=special>;</span>
<span class=special>};</span>
<span class=comment>// multi_index_container associated global class templates:</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span> <span class=keyword>struct</span> <span class=identifier>nth_index</span>
<span class=special>{</span>
<span class=keyword>typedef</span> <span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>::</span><span class=identifier>nth_index</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span> <span class=identifier>type</span><span class=special>;</span>
<span class=special>};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span> <span class=keyword>struct</span> <span class=identifier>index</span>
<span class=special>{</span>
<span class=keyword>typedef</span> <span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>::</span><span class=identifier>index</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span> <span class=identifier>type</span><span class=special>;</span>
<span class=special>};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span>
<span class=keyword>typedef</span> <span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>::</span><span class=identifier>nth_index_iterator</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span> <span class=identifier>type</span><span class=special>;</span>
<span class=special>};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>int</span> <span class=identifier>N</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>nth_index_const_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span>
<span class=keyword>typedef</span> <span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>::</span><span class=identifier>nth_index_const_iterator</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;::</span><span class=identifier>type</span> <span class=identifier>type</span><span class=special>;</span>
<span class=special>};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span>
<span class=keyword>typedef</span> <span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>::</span><span class=identifier>index_iterator</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span> <span class=identifier>type</span><span class=special>;</span>
<span class=special>};</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>&gt;</span>
<span class=keyword>struct</span> <span class=identifier>index_const_iterator</span> <span class=comment><b>// deprecated</b></span>
<span class=special>{</span>
<span class=keyword>typedef</span> <span class=keyword>typename</span> <span class=identifier>MultiIndexContainer</span><span class=special>::</span><span class=identifier>index_const_iterator</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;::</span><span class=identifier>type</span> <span class=identifier>type</span><span class=special>;</span>
<span class=special>};</span>
<span class=comment>// multi_index_container global functions for index retrieval:</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=identifier>get</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;();</span>
<span class=special>}</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>const</span> <span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=identifier>get</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;();</span>
<span class=special>}</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=identifier>get</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;();</span>
<span class=special>}</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>const</span> <span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>&amp;</span>
<span class=identifier>get</span><span class=special>(</span><span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=identifier>get</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;();</span>
<span class=special>}</span>
<span class=comment>// multi_index_container global functions for projection of iterators:</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=keyword>template</span> <span class=identifier>project</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;(</span><span class=identifier>it</span><span class=special>);</span>
<span class=special>}</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>int</span> <span class=identifier>N</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>nth_index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>N</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=keyword>template</span> <span class=identifier>project</span><span class=special>&lt;</span><span class=identifier>N</span><span class=special>&gt;(</span><span class=identifier>it</span><span class=special>);</span>
<span class=special>}</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=keyword>template</span> <span class=identifier>project</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;(</span><span class=identifier>it</span><span class=special>);</span>
<span class=special>}</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Tag</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IteratorType</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span>
<span class=special>&gt;</span>
<span class=keyword>typename</span> <span class=identifier>index</span><span class=special>&lt;</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;,</span><span class=identifier>Tag</span>
<span class=special>&gt;::</span><span class=identifier>type</span><span class=special>::</span><span class=identifier>const_iterator</span>
<span class=identifier>project</span><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>m</span><span class=special>,</span>
<span class=identifier>IteratorType</span> <span class=identifier>it</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>m</span><span class=special>.</span><span class=keyword>template</span> <span class=identifier>project</span><span class=special>&lt;</span><span class=identifier>Tag</span><span class=special>&gt;(</span><span class=identifier>it</span><span class=special>);</span>
<span class=special>}</span>
<span class=comment>// comparison:</span>
<span class=comment>// <b>OP</b> is any of ==,&lt;,!=,&gt;,&gt;=,&lt;=</span>
<span class=keyword>template</span><span class=special>&lt;</span>
<span class=keyword>typename</span> <span class=identifier>Value1</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList1</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator1</span><span class=special>,</span>
<span class=keyword>typename</span> <span class=identifier>Value2</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList2</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator2</span>
<span class=special>&gt;</span>
<span class=keyword>bool</span> <span class=keyword>operator</span> <b><i>OP</i></b><span class=special>(</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value1</span><span class=special>,</span><span class=identifier>IndexSpecifierList1</span><span class=special>,</span><span class=identifier>Allocator1</span><span class=special>&gt;&amp;</span> <span class=identifier>x</span><span class=special>,</span>
<span class=keyword>const</span> <span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value2</span><span class=special>,</span><span class=identifier>IndexSpecifierList2</span><span class=special>,</span><span class=identifier>Allocator2</span><span class=special>&gt;&amp;</span> <span class=identifier>y</span><span class=special>)</span>
<span class=special>{</span>
<span class=keyword>return</span> <span class=identifier>get</span><span class=special>&lt;</span><span class=number>0</span><span class=special>&gt;(</span><span class=identifier>x</span><span class=special>)</span> <b><i>OP</i></b> <span class=identifier>get</span><span class=special>&lt;</span><span class=number>0</span><span class=special>&gt;(</span><span class=identifier>y</span><span class=special>);</span>
<span class=special>}</span>
<span class=comment>// specialized algorithms:</span>
<span class=keyword>template</span><span class=special>&lt;</span><span class=keyword>typename</span> <span class=identifier>Value</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=keyword>typename</span> <span class=identifier>Allocator</span><span class=special>&gt;</span>
<span class=keyword>void</span> <span class=identifier>swap</span><span class=special>(</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>x</span><span class=special>,</span>
<span class=identifier>multi_index_container</span><span class=special>&lt;</span><span class=identifier>Value</span><span class=special>,</span><span class=identifier>IndexSpecifierList</span><span class=special>,</span><span class=identifier>Allocator</span><span class=special>&gt;&amp;</span> <span class=identifier>y</span><span class=special>)</span>
<span class=special>{</span>
<span class=identifier>x</span><span class=special>.</span><span class=identifier>swap</span><span class=special>(</span><span class=identifier>y</span><span class=special>);</span>
<span class=special>}</span>
<span class=special>}</span> <span class=comment>// namespace boost::multi_index</span>
<span class=special>}</span> <span class=comment>// namespace boost</span>
</pre></blockquote>
<h4><a name="complexity">Complexity</a></h4>
<p>
In the descriptions of operations of <code>multi_index_container</code>, we adopt the
scheme outlined in the
<a href="indices.html#complexity_signature">complexity signature section</a>.
</p>
<h4><a name="instantiation_types">Instantiation types</a></h4>
<p>
<code>multi_index_container</code> is instantiated with the following types:
<ol>
<li><code>Value</code> is the
<a href="http://www.sgi.com/tech/stl/Assignable.html"><code>Assignable</code></a>
type of the elements contained.
</li>
<li><code>IndexSpecifierList</code> specifies the indices that the
<code>multi_index_container</code> is composed of. It must be a non-empty
<a href="../../../../libs/mpl/doc/refmanual/forward-sequence.html">
<code>MPL Forward Sequence</code></a> (and, preferrably,
an <a href="../../../../libs/mpl/doc/refmanual/random-access-sequence.html">
<code>MPL Random Access Sequence</code></a>) of index specifiers. For
syntactic convenience, the
<a href="indices.html#indexed_by"><code>indexed_by</code></a>
MPL sequence can be used.
</li>
<li><code>Allocator</code> must be an allocator of <code>Value</code> objects
satisfying the associated C++ requirements at <b>[lib.allocator.requirements]</b>.
The following relaxations to the standard requirements are allowed:
<ul>
<li>Non-equal allocator instances are supported: swapping two non-equal
instances must not throw any exception.
</li>
<li>For every type <code>T</code>,
the type <code>Allocator::rebind&lt;T&gt;::other::pointer</code> can be any
kind of
<a href="http://www.sgi.com/tech/stl/RandomAccessIterator.html"><code>Random
Access Iterator</code></a>, provided that it is explicitly constructible from
the literal <code>0</code> (standing here as the null pointer) or from any
<code>p</code> of type <code>T*</code> pointing into an area allocated by
some instance of <code>Allocator</code> or some other allocator type rebound
from <code>Allocator</code>. A <code>pointer</code> constructed from
<code>p</code> shall dereference to <code>*p</code>.
</li>
</ul>
</li>
</ol>
Indices of a given <code>multi_index_container</code> instantiation cannot have
duplicate <a href="indices.html#tags">tags</a>, either within a single
index or in two different indices.
</p>
<h4><a name="types">Nested types</a></h4>
<code>ctor_args_list</code>
<blockquote>
Although the exact definition of <code>ctor_args_list</code> is
implementation defined, from the user point of view this type can be
treated as equivalent to
<code>::boost::tuple&lt;C<sub>0</sub>,...,C<sub>I-1</sub>></code>,
where <code>C<sub>i</sub></code> is the <code>ctor_args</code> type of the
<code>i</code>-th index held by the <code>multi_index_container</code>, in the
same order as they were specified. Strictly speaking, there is an
implicit conversion from
<code>const ::boost::tuple&lt;C<sub>0</sub>,...,C<sub>I-1</sub>>&amp;</code>
to <code>const ctor_args_list&amp;</code>. This type is used for
providing the construction arguments of the indices of the
<code>multi_index_container</code>. <code>ctor_args_list</code> is
<a href="http://www.sgi.com/tech/stl/DefaultConstructible.html"><code>Default
Constructible</code></a>, provided that all <code>ctor_args</code> types
involved are default constructible.
</blockquote>
<code>index_specifier_type_list</code>
<blockquote>
Same type as <code>IndexSpecifierList</code>.
</blockquote>
<code>index_type_list</code>
<blockquote>
Model of
<a href="../../../../libs/mpl/doc/refmanual/random-access-sequence.html">
<code>MPL Random Access Sequence</code></a> and
<a href="../../../../libs/mpl/doc/refmanual/extensible-sequence.html">
<code>MPL Extensible Sequence</code></a> containing the types of the indices held by
the <code>multi_index_container</code>, in the same order as they were specified.
</blockquote>
<code>iterator_type_list</code>
<blockquote>
Model of
<a href="../../../../libs/mpl/doc/refmanual/random-access-sequence.html">
<code>MPL Random Access Sequence</code></a> and
<a href="../../../../libs/mpl/doc/refmanual/extensible-sequence.html">
<code>MPL Extensible Sequence</code></a> containing the types of the iterators of
the indices held by the <code>multi_index_container</code>, in the same order as they were
specified.
</blockquote>
<code>const_iterator_type_list</code>
<blockquote>
Model of
<a href="../../../../libs/mpl/doc/refmanual/random-access-sequence.html">
<code>MPL Random Access Sequence</code></a> and
<a href="../../../../libs/mpl/doc/refmanual/extensible-sequence.html">
<code>MPL Extensible Sequence</code></a> containing the types of the constant
iterators of the indices held by the <code>multi_index_container</code>, in the same order
as they were specified.
</blockquote>
<h4><a name="nested_templates">Nested class templates</a></h4>
<code>template&lt;int N> struct nth_index</code>
<blockquote>
<code>nth_index&lt;N>::type</code> yields the type of the
<code>N</code>-th (0-based) index held by the <code>multi_index_container</code>, in
the same order as they were specified.<br>
<b>Requires:</b> <code>0 &lt;= N &lt; I</code>.
</blockquote>
<code>template&lt;typename Tag> struct index</code>
<blockquote>
<code>index&lt;Tag>::type</code> yields the type of the index which
has <code>Tag</code> as an associated <a href="indices.html#tags">tag type</a>.<br>
<b>Requires:</b> Some index of the <code>multi_index_container</code> has <code>Tag</code>
as an associated tag type.
</blockquote>
<code>template&lt;int N> struct nth_index_iterator</code>
<blockquote>
<code>nth_index_iterator&lt;N>::type</code> is equivalent to
<code>nth_index&lt;N>::type::iterator</code>.<br>
<b>Note:</b> The use of <code>nth_index_iterator</code> is deprecated.
</blockquote>
<code>template&lt;int N> struct nth_index_const_iterator</code>
<blockquote>
<code>nth_index_const_iterator&lt;N>::type</code> is equivalent to
<code>nth_index&lt;N>::type::const_iterator</code>.<br>
<b>Note:</b> The use of <code>nth_index_const_iterator</code> is deprecated.
</blockquote>
<code>template&lt;typename Tag> struct index_iterator</code>
<blockquote>
<code>index_iterator&lt;Tag>::type</code> is equivalent to
<code>index&lt;Tag>::type::iterator</code>.<br>
<b>Note:</b> The use of <code>index_iterator</code> is deprecated.
</blockquote>
<code>template&lt;typename Tag> struct index_const_iterator</code>
<blockquote>
<code>index_const_iterator&lt;Tag>::type</code> is equivalent to
<code>index&lt;Tag>::type::const_iterator</code>.<br>
<b>Note:</b> The use of <code>index_const_iterator</code> is deprecated.
</blockquote>
<h4><a name="constructors">Constructors, copy and assignment</a></h4>
<code>explicit multi_index_container(<br>
&nbsp;&nbsp;const ctor_args_list&amp; args_list=ctor_args_list(),<br>
&nbsp;&nbsp;const allocator_type&amp; al=allocator_type());</code>
<blockquote>
<b>Effects:</b> Constructs an empty <code>multi_index_container</code> using the
specified argument list and allocator.<br>
<b>Complexity:</b> Constant.
</blockquote>
<code>explicit multi_index_container(const allocator_type&amp; al);</code>
<blockquote>
<b>Effects:</b> Constructs an empty <code>multi_index_container</code> using the
specified allocator and the default value of <code>ctor_args_list</code>.<br>
<b>Complexity:</b> Constant.
</blockquote>
<code>template&lt;typename InputIterator><br>
multi_index_container(<br>
&nbsp;&nbsp;InputIterator first,InputIterator last,<br>
&nbsp;&nbsp;const ctor_args_list&amp; comp=ctor_args_list(),<br>
&nbsp;&nbsp;const allocator_type&amp; al=allocator_type());</code>
<blockquote>
<b>Requires:</b> <code>InputIterator</code> is a model of
<a href="http://www.sgi.com/tech/stl/InputIterator.html">
<code>Input Iterator</code></a> over elements of type
<code>Value</code> or a type convertible to <code>Value</code>.
<code>last</code> is reachable from <code>first</code>.<br>
<b>Effects:</b> Constructs and empty <code>multi_index_container</code> using the
specified argument list and allocator and fills it with
the elements in the range [<code>first</code>,<code>last</code>).
Insertion of each element may or may not succeed depending
on the acceptance by all the indices of the <code>multi_index_container</code>.<br>
<b>Complexity:</b> <code>O(m*H(m))</code>, where <code>m</code> is
the number of elements in [<code>first</code>,<code>last</code>).<br>
</blockquote>
<code>multi_index_container(<br>
&nbsp;&nbsp;const multi_index_container&lt;Value,IndexSpecifierList,Allocator>&amp; x);</code>
<blockquote>
<b>Effects:</b> Constructs a copy of <code>x</code>, copying its
elements as well as its internal objects (key extractors, comparison objects,
allocator.)<br>
<b>Postconditions:</b> <code>*this==x</code>. The order on every index
of the <code>multi_index_container</code> is preserved as well.<br>
<b>Complexity:</b> <code>O(x.size()*log(x.size()) + C(x.size()))</code>.
</blockquote>
<code>~multi_index_container()</code>
<blockquote>
<b>Effects:</b> Destroys the <code>multi_index_container</code> and all the elements
contained. The order in which the elements are destroyed is not specified.<br>
<b>Complexity:</b> <code>O(n)</code>.
</blockquote>
<code>multi_index_container&lt;Value,IndexSpecifierList,Allocator>&amp; operator=(<br>
&nbsp;&nbsp;const multi_index_container&lt;Value,IndexSpecifierList,Allocator>&amp; x);</code>
<blockquote>
Replaces the elements and internal objects of the <code>multi_index_container</code>
with copies from <code>x</code>.<br>
<b>Postconditions:</b> <code>*this==x</code>. The order on every index
of the <code>multi_index_container</code> is preserved as well.<br>
<b>Returns:</b> <code>*this</code>.<br>
<b>Complexity:</b> <code>O(n + x.size()*log(x.size()) +
C(x.size()))</code>.<br>
<b>Exception safety:</b> Strong, provided the copy and assignment operations
of the types of <code>ctor_args_list</code> do not throw.
</blockquote>
<code>allocator_type get_allocator()const;</code>
<blockquote>
Returns a copy of the <code>allocator_type</code> object used to construct
the <code>multi_index_container</code>.<br>
<b>Complexity:</b> Constant.
</blockquote>
<h4><a name="index_retrieval">Index retrieval operations</a></h4>
<code>template&lt;int N> typename nth_index&lt;N>::type&amp; get();</code>
<blockquote>
<b>Requires:</b> <code>0 &lt;= N &lt; I</code>.<br>
<b>Effects:</b> Returns a reference to the
<code>nth_index&lt;N>::type</code> index held by <code>*this</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<code>template&lt;int N> const typename nth_index&lt;N>::type&amp; get()const;</code>
<blockquote>
<b>Requires:</b> <code>0 &lt;= N &lt; I</code>.<br>
<b>Effects:</b> Returns a <code>const</code> reference to the
<code>nth_index&lt;N>::type</code> index held by <code>*this</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<code>template&lt;typename Tag> typename index&lt;Tag>::type&amp; get()</code>
<blockquote>
<b>Requires:</b> <code>Tag</code> is such that <code>index&lt;Tag>::type</code>
is valid.<br>
<b>Effects:</b> Returns a reference to the
<code>index&lt;Tag>::type</code> index held by
<code>*this</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<code>template&lt;typename Tag> const typename index&lt;Tag>::type&amp; get()const;</code>
<blockquote>
<b>Requires:</b> <code>Tag</code> is such that <code>index&lt;Tag>::type</code>
is valid.<br>
<b>Effects:</b> Returns a <code>const</code> reference to the
<code>index&lt;Tag>::type</code> index held by
<code>*this</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<h4><a name="projection">Projection operations</a></h4>
<p>
Given a <code>multi_index_container</code> with indices <code>i1</code>
and <code>i2</code>, we say than an <code>i1</code>-iterator
<code>it1</code> and an <code>i2</code>-iterator <code>it2</code>
are <i>equivalent</i> if:
<ul>
<li> <code>it1==i1.end()</code> AND <code>it2==i2.end()</code>,</li>
<li> OR <code>it1</code> and <code>it2</code> point to the
same element.</li>
</ul>
</p>
<code>template&lt;int N,typename IteratorType><br>
typename nth_index&lt;N>::type::iterator project(IteratorType it);</code>
<blockquote>
<b>Requires:</b> <code>0 &lt;= N &lt; I</code>. <code>IteratorType</code>
belongs to <code>iterator_type_list</code>. <code>it</code> is a valid
iterator of some index of <code>*this</code> (i.e. does not refer to some
other <code>multi_index_container</code>.)<br>
<b>Effects:</b> Returns an <code>nth_index&lt;N>::type::iterator</code>
equivalent to <code>it</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<code>template&lt;int N,typename IteratorType><br>
typename nth_index&lt;N>::type::const_iterator project(IteratorType it)const;</code>
<blockquote>
<b>Requires:</b> <code>0 &lt;= N &lt; I</code>. <code>IteratorType</code>
belongs to <code>const_iterator_type_list</code> or
<code>iterator_type_list</code>. <code>it</code> is a
valid (constant or non-constant) iterator of some index of <code>*this</code>
(i.e. does not refer to some other <code>multi_index_container</code>.)<br>
<b>Effects:</b> Returns an <code>nth_index&lt;N>::type::const_iterator</code>
equivalent to <code>it</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<code>template&lt;typename Tag,typename IteratorType><br>
typename index&lt;Tag>::type::iterator project(IteratorType it);</code>
<blockquote>
<b>Requires:</b> <code>Tag</code> is such that
<code>index&lt;Tag>::type</code> is valid. <code>IteratorType</code>
belongs to <code>iterator_type_list</code>. <code>it</code> is a valid
iterator of some index of <code>*this</code> (i.e. does not refer to some
other <code>multi_index_container</code>.)<br>
<b>Effects:</b> Returns an <code>index&lt;Tag>::type::iterator</code>
equivalent to <code>it</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<code>template&lt;typename Tag,typename IteratorType><br>
typename index&lt;Tag>::type::const_iterator project(IteratorType it)const;</code>
<blockquote>
<b>Requires:</b> <code>Tag</code> is such that
<code>index&lt;Tag>::type</code> is valid. <code>IteratorType</code>
belongs to <code>const_iterator_type_list</code> or
<code>iterator_type_list</code>. <code>it</code> is a valid
(constant or non-constant) iterator of some index of <code>*this</code>
(i.e. does not refer to some other <code>multi_index_container</code>.)<br>
<b>Effects:</b> Returns an <code>index&lt;Tag>::type::const_iterator</code>
iterator equivalent to <code>it</code>.<br>
<b>Complexity:</b> Constant.<br>
<b>Exception safety:</b> <code>nothrow</code>.
</blockquote>
<h4><a name="serialization">Serialization</a></h4>
<p>
<code>multi_index_container</code>s can be archived/retrieved by means of
<a href="../../../serialization/index.html">Boost.Serialization</a>.
Boost.MultiIndex does not expose a public serialization interface, as this
is provided by Boost.Serialization itself. Both regular and XML
archives are supported.
</p>
<p>
Each of the indices comprising a given <code>multi_index_container</code> contributes
its own preconditions as well as guarantees on the retrieved containers. In describing
these, the following concepts are used. A type <code>T</code> is <i>serializable</i>
(resp. XML-serializable) if any object of type <code>T</code> can be saved to an output
archive (XML archive) and later retrieved from an input archive (XML archive) associated to
the same storage. If <code>x'</code> of type <code>T</code> is loaded from the
serialization information saved from another object <code>x</code>, we say that
<code>x'</code> is a <i>restored copy</i> of <code>x</code>. Given a
<a href="http://www.sgi.com/tech/stl/BinaryPredicate.html"><code>Binary Predicate</code></a>
<code>Pred</code> over (<code>T</code>, <code>T</code>), and objects <code>p</code>
and <code>q</code> of type <code>Pred</code>, we say that <code>q</code>
is <i>serialization-compatible</i> with <code>p</code> if
<blockquote>
<code>p(x,y) == q(x',y')</code>
</blockquote>
for every <code>x</code> and <code>y</code> of type <code>T</code> and <code>x'</code> and
<code>y'</code> being restored copies of <code>x</code> and <code>y</code>,
respectively.
</p>
Operation: saving of a <code>multi_index_container</code> <code>m</code> to an
output archive (XML archive) <code>ar</code>.
<blockquote>
<b>Requires:</b> <code>Value</code> is serializable (XML-serializable). Additionally,
each of the indices of <code>m</code> can impose another requirements.<br>
<b>Exception safety:</b> Strong with respect to <code>m</code>. If an exception
is thrown, <code>ar</code> may be left in an inconsistent state.
</blockquote>
Operation: loading of a <code>multi_index_container</code> <code>m'</code> from an
input archive (XML archive) <code>ar</code>.
<blockquote>
<b>Requires:</b> <code>Value</code> is serializable (XML-serializable). Additionally,
each of the indices of <code>m'</code> can impose another requirements.<br>
<b>Exception safety:</b> Basic. If an exception is thrown, <code>ar</code> may be
left in an inconsistent state.
</blockquote>
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<br>
<p>Revised November 6th 2008</p>
<p>&copy; Copyright 2003-2008 Joaqu&iacute;n M L&oacute;pez Mu&ntilde;oz.
Distributed under the Boost Software
License, Version 1.0. (See accompanying file <a href="../../../../LICENSE_1_0.txt">
LICENSE_1_0.txt</a> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">
http://www.boost.org/LICENSE_1_0.txt</a>)
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