1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Intrusive avl tree based associative containers: avl_set, avl_multiset and avltree</title> 6<link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../intrusive.html" title="Chapter 19. Boost.Intrusive"> 10<link rel="prev" href="map_multimap.html" title="Map and multimap-like interface for associative containers"> 11<link rel="next" href="splay_set_multiset.html" title="Intrusive splay tree based associative containers: splay_set, splay_multiset and , splay_tree"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td> 16<td align="center"><a href="../../../index.html">Home</a></td> 17<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td> 18<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 19<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 20<td align="center"><a href="../../../more/index.htm">More</a></td> 21</tr></table> 22<hr> 23<div class="spirit-nav"> 24<a accesskey="p" href="map_multimap.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../intrusive.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="splay_set_multiset.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="section"> 27<div class="titlepage"><div><div><h2 class="title" style="clear: both"> 28<a name="intrusive.avl_set_multiset"></a><a class="link" href="avl_set_multiset.html" title="Intrusive avl tree based associative containers: avl_set, avl_multiset and avltree">Intrusive avl tree based associative 29 containers: avl_set, avl_multiset and avltree</a> 30</h2></div></div></div> 31<div class="toc"><dl class="toc"> 32<dt><span class="section"><a href="avl_set_multiset.html#intrusive.avl_set_multiset.avl_set_multiset_hooks">avl_set, 33 avl_multiset and avltree hooks</a></span></dt> 34<dt><span class="section"><a href="avl_set_multiset.html#intrusive.avl_set_multiset.set_multiset_containers">avl_set, 35 avl_multiset and avltree containers</a></span></dt> 36<dt><span class="section"><a href="avl_set_multiset.html#intrusive.avl_set_multiset.avl_set_multiset_example">Example</a></span></dt> 37</dl></div> 38<p> 39 Similar to red-black trees, AVL trees are balanced binary trees. AVL trees 40 are often compared with red-black trees because they support the same set of 41 operations and because both take O(log n) time for basic operations. AVL trees 42 are more rigidly balanced than Red-Black trees, leading to slower insertion 43 and removal but faster retrieval, so AVL trees perform better than red-black 44 trees for lookup-intensive applications. 45 </p> 46<p> 47 <span class="bold"><strong>Boost.Intrusive</strong></span> offers 3 containers based 48 on avl trees: <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set.html" title="Class template avl_set">avl_set</a></code>, 49 <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_multiset.html" title="Class template avl_multiset">avl_multiset</a></code> and 50 <code class="computeroutput"><a class="link" href="../boost/intrusive/avltree.html" title="Class template avltree">avltree</a></code>. The first two 51 are similar to <code class="computeroutput"><a class="link" href="../boost/intrusive/set.html" title="Class template set">set</a></code> or <code class="computeroutput"><a class="link" href="../boost/intrusive/multiset.html" title="Class template multiset">multiset</a></code> and the latter is a generalization 52 that offers functions both to insert unique and multiple keys. 53 </p> 54<p> 55 The memory overhead of these containers with Boost.Intrusive hooks is usually 56 3 pointers and 2 bits (due to alignment, this usually means 3 pointers plus 57 an integer). This size can be reduced to 3 pointers if pointers have 4 byte 58 alignment (which is usually true in 32 bit systems). 59 </p> 60<p> 61 An empty, non constant-time size <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set.html" title="Class template avl_set">avl_set</a></code>, 62 <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_multiset.html" title="Class template avl_multiset">avl_multiset</a></code> or 63 <code class="computeroutput"><a class="link" href="../boost/intrusive/avltree.html" title="Class template avltree">avltree</a></code> also has a size 64 of 3 pointers and an integer (3 pointers when optimized for size). 65 </p> 66<div class="section"> 67<div class="titlepage"><div><div><h3 class="title"> 68<a name="intrusive.avl_set_multiset.avl_set_multiset_hooks"></a><a class="link" href="avl_set_multiset.html#intrusive.avl_set_multiset.avl_set_multiset_hooks" title="avl_set, avl_multiset and avltree hooks">avl_set, 69 avl_multiset and avltree hooks</a> 70</h3></div></div></div> 71<p> 72 <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set.html" title="Class template avl_set">avl_set</a></code>, <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_multiset.html" title="Class template avl_multiset">avl_multiset</a></code> and <code class="computeroutput"><a class="link" href="../boost/intrusive/avltree.html" title="Class template avltree">avltree</a></code> share the same hooks. 73 </p> 74<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">></span> 75<span class="keyword">class</span> <span class="identifier">avl_set_base_hook</span><span class="special">;</span> 76</pre> 77<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 78 <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set_base_hook.html" title="Class template avl_set_base_hook">avl_set_base_hook</a></code>: 79 the user class derives publicly from this class to make it compatible 80 with avl tree based containers. 81 </li></ul></div> 82<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">></span> 83<span class="keyword">class</span> <span class="identifier">avl_set_member_hook</span><span class="special">;</span> 84</pre> 85<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem"> 86 <code class="computeroutput"><a class="link" href="../boost/intrusive/set_member_hook.html" title="Class template set_member_hook">set_member_hook</a></code>: 87 the user class contains a public member of this class to make it compatible 88 with avl tree based containers. 89 </li></ul></div> 90<p> 91 <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set_base_hook.html" title="Class template avl_set_base_hook">avl_set_base_hook</a></code> 92 and <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set_member_hook.html" title="Class template avl_set_member_hook">avl_set_member_hook</a></code> 93 receive the same options explained in the section <a class="link" href="usage.html" title="How to use Boost.Intrusive">How 94 to use Boost.Intrusive</a> plus an option to optimize the size of the 95 node: 96 </p> 97<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 98<li class="listitem"> 99 <span class="bold"><strong><code class="computeroutput"><span class="identifier">tag</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Tag</span><span class="special">></span></code></strong></span> 100 (for base hooks only): This argument serves as a tag, so you can derive 101 from more than one base hook. Default: <code class="computeroutput"><span class="identifier">tag</span><span class="special"><</span><span class="identifier">default_tag</span><span class="special">></span></code>. 102 </li> 103<li class="listitem"> 104 <span class="bold"><strong><code class="computeroutput"><span class="identifier">link_mode</span><span class="special"><</span><span class="identifier">link_mode_type</span> 105 <span class="identifier">LinkMode</span><span class="special">></span></code></strong></span>: 106 The linking policy. Default: <code class="computeroutput"><span class="identifier">link_mode</span><span class="special"><</span><span class="identifier">safe_link</span><span class="special">></span></code>. 107 </li> 108<li class="listitem"> 109 <span class="bold"><strong><code class="computeroutput"><span class="identifier">void_pointer</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">VoidPointer</span><span class="special">></span></code></strong></span>: 110 The pointer type to be used internally in the hook and propagated to 111 the container. Default: <code class="computeroutput"><span class="identifier">void_pointer</span><span class="special"><</span><span class="keyword">void</span><span class="special">*></span></code>. 112 </li> 113<li class="listitem"> 114 <span class="bold"><strong><code class="computeroutput"><span class="identifier">optimize_size</span><span class="special"><</span><span class="keyword">bool</span> <span class="identifier">Enable</span><span class="special">></span></code></strong></span>: 115 The hook will be optimized for size instead of speed. The hook will embed 116 the balance bits of the AVL tree node in the parent pointer if pointer 117 alignment is multiple of 4. In some platforms, optimizing the size might 118 reduce speed performance a bit since masking operations will be needed 119 to access parent pointer and balance factor attributes, in other platforms 120 this option improves performance due to improved memory locality. Default: 121 <code class="computeroutput"><span class="identifier">optimize_size</span><span class="special"><</span><span class="keyword">false</span><span class="special">></span></code>. 122 </li> 123</ul></div> 124</div> 125<div class="section"> 126<div class="titlepage"><div><div><h3 class="title"> 127<a name="intrusive.avl_set_multiset.set_multiset_containers"></a><a class="link" href="avl_set_multiset.html#intrusive.avl_set_multiset.set_multiset_containers" title="avl_set, avl_multiset and avltree containers">avl_set, 128 avl_multiset and avltree containers</a> 129</h3></div></div></div> 130<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">></span> 131<span class="keyword">class</span> <span class="identifier">avl_set</span><span class="special">;</span> 132 133<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">></span> 134<span class="keyword">class</span> <span class="identifier">avl_multiset</span><span class="special">;</span> 135 136<span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="special">...</span><span class="identifier">Options</span><span class="special">></span> 137<span class="keyword">class</span> <span class="identifier">avltree</span><span class="special">;</span> 138</pre> 139<p> 140 These containers receive the same options explained in the section <a class="link" href="usage.html" title="How to use Boost.Intrusive">How to use Boost.Intrusive</a>: 141 </p> 142<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 143<li class="listitem"> 144 <span class="bold"><strong><code class="computeroutput"><span class="identifier">base_hook</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Hook</span><span class="special">></span></code></strong></span> 145 / <span class="bold"><strong><code class="computeroutput"><span class="identifier">member_hook</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Hook</span><span class="special">,</span> <span class="identifier">Hook</span> <span class="identifier">T</span><span class="special">::*</span> <span class="identifier">PtrToMember</span><span class="special">></span></code></strong></span> 146 / <span class="bold"><strong><code class="computeroutput"><span class="identifier">value_traits</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">ValueTraits</span><span class="special">></span></code></strong></span>: 147 To specify the hook type or value traits used to configure the container. 148 (To learn about value traits go to the section <a class="link" href="value_traits.html" title="Containers with custom ValueTraits">Containers 149 with custom ValueTraits</a>.) 150 </li> 151<li class="listitem"> 152 <span class="bold"><strong><code class="computeroutput"><span class="identifier">constant_time_size</span><span class="special"><</span><span class="keyword">bool</span> <span class="identifier">Enabled</span><span class="special">></span></code></strong></span>: 153 To activate the constant-time <code class="computeroutput"><span class="identifier">size</span><span class="special">()</span></code> operation. Default: <code class="computeroutput"><span class="identifier">constant_time_size</span><span class="special"><</span><span class="keyword">true</span><span class="special">></span></code> 154 </li> 155<li class="listitem"> 156 <span class="bold"><strong><code class="computeroutput"><span class="identifier">size_type</span><span class="special"><</span><span class="keyword">typename</span> 157 <span class="identifier">SizeType</span><span class="special">></span></code></strong></span>: 158 To specify the type that will be used to store the size of the container. 159 Default: <code class="computeroutput"><span class="identifier">size_type</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">></span></code> 160 </li> 161</ul></div> 162<p> 163 And they also can receive an additional option: 164 </p> 165<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 166<li class="listitem"> 167 <span class="bold"><strong><code class="computeroutput"><span class="identifier">compare</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">Compare</span><span class="special">></span></code></strong></span>: 168 Comparison function for the objects to be inserted in containers. The 169 comparison functor must induce a strict weak ordering. Default: <code class="computeroutput"><span class="identifier">compare</span><span class="special"><</span> 170 <span class="identifier">std</span><span class="special">::</span><span class="identifier">less</span><span class="special"><</span><span class="identifier">key_type</span><span class="special">></span> 171 <span class="special">></span></code> 172 </li> 173<li class="listitem"> 174 <span class="bold"><strong><code class="computeroutput"><span class="identifier">key_of_value</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">KeyOfValueFunctionObject</span><span class="special">></span></code></strong></span>: 175 A function object that will define the <code class="computeroutput"><span class="identifier">key_type</span></code> 176 of the value type to be stored. This type will allow a map-like interface. 177 See <a class="link" href="map_multimap.html" title="Map and multimap-like interface for associative containers">Map and multimap-like interface 178 with set and multiset</a> for details. Default: <code class="computeroutput"><span class="identifier">key_type</span></code> 179 is equal to <code class="computeroutput"><span class="identifier">value_type</span></code> 180 (set-like interface). 181 </li> 182</ul></div> 183</div> 184<div class="section"> 185<div class="titlepage"><div><div><h3 class="title"> 186<a name="intrusive.avl_set_multiset.avl_set_multiset_example"></a><a class="link" href="avl_set_multiset.html#intrusive.avl_set_multiset.avl_set_multiset_example" title="Example">Example</a> 187</h3></div></div></div> 188<p> 189 Now let's see a small example using both hooks and <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_set.html" title="Class template avl_set">avl_set</a></code>/ 190 <code class="computeroutput"><a class="link" href="../boost/intrusive/avl_multiset.html" title="Class template avl_multiset">avl_multiset</a></code> 191 containers: 192 </p> 193<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">intrusive</span><span class="special">/</span><span class="identifier">avl_set</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 194<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">vector</span><span class="special">></span> 195<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">functional</span><span class="special">></span> 196<span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">cassert</span><span class="special">></span> 197 198<span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">intrusive</span><span class="special">;</span> 199 200 <span class="comment">//This is a base hook optimized for size</span> 201<span class="keyword">class</span> <span class="identifier">MyClass</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">avl_set_base_hook</span><span class="special"><</span><span class="identifier">optimize_size</span><span class="special"><</span><span class="keyword">true</span><span class="special">></span> <span class="special">></span> 202<span class="special">{</span> 203 <span class="keyword">int</span> <span class="identifier">int_</span><span class="special">;</span> 204 205 <span class="keyword">public</span><span class="special">:</span> 206 <span class="comment">//This is a member hook</span> 207 <span class="identifier">avl_set_member_hook</span><span class="special"><></span> <span class="identifier">member_hook_</span><span class="special">;</span> 208 209 <span class="identifier">MyClass</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">i</span><span class="special">)</span> 210 <span class="special">:</span> <span class="identifier">int_</span><span class="special">(</span><span class="identifier">i</span><span class="special">)</span> 211 <span class="special">{}</span> 212 <span class="keyword">friend</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special"><</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">MyClass</span> <span class="special">&</span><span class="identifier">a</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">MyClass</span> <span class="special">&</span><span class="identifier">b</span><span class="special">)</span> 213 <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">a</span><span class="special">.</span><span class="identifier">int_</span> <span class="special"><</span> <span class="identifier">b</span><span class="special">.</span><span class="identifier">int_</span><span class="special">;</span> <span class="special">}</span> 214 <span class="keyword">friend</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">></span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">MyClass</span> <span class="special">&</span><span class="identifier">a</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">MyClass</span> <span class="special">&</span><span class="identifier">b</span><span class="special">)</span> 215 <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">a</span><span class="special">.</span><span class="identifier">int_</span> <span class="special">></span> <span class="identifier">b</span><span class="special">.</span><span class="identifier">int_</span><span class="special">;</span> <span class="special">}</span> 216 <span class="keyword">friend</span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">==</span> <span class="special">(</span><span class="keyword">const</span> <span class="identifier">MyClass</span> <span class="special">&</span><span class="identifier">a</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">MyClass</span> <span class="special">&</span><span class="identifier">b</span><span class="special">)</span> 217 <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">a</span><span class="special">.</span><span class="identifier">int_</span> <span class="special">==</span> <span class="identifier">b</span><span class="special">.</span><span class="identifier">int_</span><span class="special">;</span> <span class="special">}</span> 218<span class="special">};</span> 219 220<span class="comment">//Define an avl_set using the base hook that will store values in reverse order</span> 221<span class="keyword">typedef</span> <span class="identifier">avl_set</span><span class="special"><</span> <span class="identifier">MyClass</span><span class="special">,</span> <span class="identifier">compare</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">greater</span><span class="special"><</span><span class="identifier">MyClass</span><span class="special">></span> <span class="special">></span> <span class="special">></span> <span class="identifier">BaseSet</span><span class="special">;</span> 222 223<span class="comment">//Define an multiset using the member hook</span> 224<span class="keyword">typedef</span> <span class="identifier">member_hook</span><span class="special"><</span><span class="identifier">MyClass</span><span class="special">,</span> <span class="identifier">avl_set_member_hook</span><span class="special"><>,</span> <span class="special">&</span><span class="identifier">MyClass</span><span class="special">::</span><span class="identifier">member_hook_</span><span class="special">></span> <span class="identifier">MemberOption</span><span class="special">;</span> 225<span class="keyword">typedef</span> <span class="identifier">avl_multiset</span><span class="special"><</span> <span class="identifier">MyClass</span><span class="special">,</span> <span class="identifier">MemberOption</span><span class="special">></span> <span class="identifier">MemberMultiset</span><span class="special">;</span> 226 227<span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> 228<span class="special">{</span> 229 <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">MyClass</span><span class="special">>::</span><span class="identifier">iterator</span> <span class="identifier">VectIt</span><span class="special">;</span> 230 231 <span class="comment">//Create several MyClass objects, each one with a different value</span> 232 <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">MyClass</span><span class="special">></span> <span class="identifier">values</span><span class="special">;</span> 233 <span class="keyword">for</span><span class="special">(</span><span class="keyword">int</span> <span class="identifier">i</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> <span class="identifier">i</span> <span class="special"><</span> <span class="number">100</span><span class="special">;</span> <span class="special">++</span><span class="identifier">i</span><span class="special">)</span> <span class="identifier">values</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span><span class="identifier">MyClass</span><span class="special">(</span><span class="identifier">i</span><span class="special">));</span> 234 235 <span class="identifier">BaseSet</span> <span class="identifier">baseset</span><span class="special">;</span> 236 <span class="identifier">MemberMultiset</span> <span class="identifier">membermultiset</span><span class="special">;</span> 237 238 <span class="comment">//Check that size optimization is activated in the base hook</span> 239 <span class="identifier">assert</span><span class="special">(</span><span class="keyword">sizeof</span><span class="special">(</span><span class="identifier">avl_set_base_hook</span><span class="special"><</span><span class="identifier">optimize_size</span><span class="special"><</span><span class="keyword">true</span><span class="special">></span> <span class="special">>)</span> <span class="special">==</span> <span class="number">3</span><span class="special">*</span><span class="keyword">sizeof</span><span class="special">(</span><span class="keyword">void</span><span class="special">*));</span> 240 <span class="comment">//Check that size optimization is deactivated in the member hook</span> 241 <span class="identifier">assert</span><span class="special">(</span><span class="keyword">sizeof</span><span class="special">(</span><span class="identifier">avl_set_member_hook</span><span class="special"><>)</span> <span class="special">></span> <span class="number">3</span><span class="special">*</span><span class="keyword">sizeof</span><span class="special">(</span><span class="keyword">void</span><span class="special">*));</span> 242 243 <span class="comment">//Now insert them in the sets</span> 244 <span class="keyword">for</span><span class="special">(</span><span class="identifier">VectIt</span> <span class="identifier">it</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()),</span> <span class="identifier">itend</span><span class="special">(</span><span class="identifier">values</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">itend</span><span class="special">;</span> <span class="special">++</span><span class="identifier">it</span><span class="special">){</span> 245 <span class="identifier">baseset</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(*</span><span class="identifier">it</span><span class="special">);</span> 246 <span class="identifier">membermultiset</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(*</span><span class="identifier">it</span><span class="special">);</span> 247 <span class="special">}</span> 248 249 <span class="comment">//Now test avl_sets</span> 250 <span class="special">{</span> 251 <span class="identifier">BaseSet</span><span class="special">::</span><span class="identifier">reverse_iterator</span> <span class="identifier">rbit</span><span class="special">(</span><span class="identifier">baseset</span><span class="special">.</span><span class="identifier">rbegin</span><span class="special">());</span> 252 <span class="identifier">MemberMultiset</span><span class="special">::</span><span class="identifier">iterator</span> <span class="identifier">mit</span><span class="special">(</span><span class="identifier">membermultiset</span><span class="special">.</span><span class="identifier">begin</span><span class="special">());</span> 253 <span class="identifier">VectIt</span> <span class="identifier">it</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()),</span> <span class="identifier">itend</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">end</span><span class="special">());</span> 254 255 <span class="comment">//Test the objects inserted in the base hook avl_set</span> 256 <span class="keyword">for</span><span class="special">(;</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">itend</span><span class="special">;</span> <span class="special">++</span><span class="identifier">it</span><span class="special">,</span> <span class="special">++</span><span class="identifier">rbit</span><span class="special">)</span> 257 <span class="keyword">if</span><span class="special">(&*</span><span class="identifier">rbit</span> <span class="special">!=</span> <span class="special">&*</span><span class="identifier">it</span><span class="special">)</span> <span class="keyword">return</span> <span class="number">1</span><span class="special">;</span> 258 259 <span class="comment">//Test the objects inserted in the member hook avl_set</span> 260 <span class="keyword">for</span><span class="special">(</span><span class="identifier">it</span> <span class="special">=</span> <span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();</span> <span class="identifier">it</span> <span class="special">!=</span> <span class="identifier">itend</span><span class="special">;</span> <span class="special">++</span><span class="identifier">it</span><span class="special">,</span> <span class="special">++</span><span class="identifier">mit</span><span class="special">)</span> 261 <span class="keyword">if</span><span class="special">(&*</span><span class="identifier">mit</span> <span class="special">!=</span> <span class="special">&*</span><span class="identifier">it</span><span class="special">)</span> <span class="keyword">return</span> <span class="number">1</span><span class="special">;</span> 262 <span class="special">}</span> 263 <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> 264<span class="special">}</span> 265</pre> 266</div> 267</div> 268<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 269<td align="left"></td> 270<td align="right"><div class="copyright-footer">Copyright © 2005 Olaf Krzikalla<br>Copyright © 2006-2015 Ion Gaztanaga<p> 271 Distributed under the Boost Software License, Version 1.0. (See accompanying 272 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>) 273 </p> 274</div></td> 275</tr></table> 276<hr> 277<div class="spirit-nav"> 278<a accesskey="p" href="map_multimap.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../intrusive.html"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="splay_set_multiset.html"><img src="../../../doc/src/images/next.png" alt="Next"></a> 279</div> 280</body> 281</html> 282
