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  25 <div class="refentry">
  26 <a name="boost.histogram.indexed_range.accessor"></a><div class="titlepage"></div>
  27 <div class="refnamediv">
  28 <h2><span class="refentrytitle">Class accessor</span></h2>
  29 <p>boost::histogram::indexed_range::accessor &#8212; Lightweight view to access value and index of current cell. </p>
  30 </div>
  31 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  32 <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../../../histogram/reference.html#header.boost.histogram.indexed_hpp" title="Header &lt;boost/histogram/indexed.hpp&gt;">boost/histogram/indexed.hpp</a>&gt;
  33
  34 </span>
  35
  36 <span class="comment">// Lightweight view to access value and index of current cell.</span>
  37
  38 <span class="keyword">class</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">{</span>
  39 <span class="keyword">public</span><span class="special">:</span>
  40   <span class="comment">// member classes/structs/unions</span>
  41
  42   <span class="comment">// Array-like view into the current multi-dimensional index.</span>
  43
  44   <span class="keyword">class</span> <a class="link" href="accessor/index_view.html" title="Class index_view">index_view</a> <span class="special">{</span>
  45   <span class="keyword">public</span><span class="special">:</span>
  46     <span class="comment">// types</span>
  47     <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span>              <a class="link" href="accessor/index_view.html#boost.histogram.indexed_range.accessor.index_view.const_iterator"><span class="identifier">const_iterator</span></a><span class="special">;</span>
  48     <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">axis</span><span class="special">::</span><span class="identifier">index_type</span> <span class="special">&amp;</span> <a class="link" href="accessor/index_view.html#boost.histogram.indexed_range.accessor.index_view.const_reference"><span class="identifier">const_reference</span></a><span class="special">;</span>
  49
  50     <span class="comment">// <a class="link" href="accessor/index_view.html#idm45414524320384-bb">public member functions</a></span>
  51     <a class="link" href="accessor/index_view.html#boost.histogram.indexed_range.accessor.index_view.const_iterator">const_iterator</a> <a class="link" href="accessor/index_view.html#idm45414524319824-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  52     <a class="link" href="accessor/index_view.html#boost.histogram.indexed_range.accessor.index_view.const_iterator">const_iterator</a> <a class="link" href="accessor/index_view.html#idm45414524318576-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  53     <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a class="link" href="accessor/index_view.html#idm45414524317328-bb"><span class="identifier">size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  54     <span class="identifier">const_reference</span> <a class="link" href="accessor/index_view.html#idm45414524316208-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="keyword">unsigned</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  55     <span class="identifier">const_reference</span> <a class="link" href="accessor/index_view.html#idm45414524314400-bb"><span class="identifier">at</span></a><span class="special">(</span><span class="keyword">unsigned</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  56   <span class="special">}</span><span class="special">;</span>
  57   <span class="comment">// <a class="link" href="accessor.html#boost.histogram.indexed_range.accessorconstruct-copy-destruct">construct/copy/destruct</a></span>
  58   <a class="link" href="accessor.html#idm45414524257392-bb"><span class="identifier">accessor</span></a><span class="special">(</span><a class="link" href="../indexed_range.html#boost.histogram.indexed_range.iterator">iterator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  59   <a class="link" href="accessor.html#idm45414524255856-bb"><span class="identifier">accessor</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span>
  60   <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> <a class="link" href="accessor.html#idm45414524261792-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  61   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> <a class="link" href="accessor.html#idm45414524259792-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  62
  63   <span class="comment">// <a class="link" href="accessor.html#idm45414524312432-bb">public member functions</a></span>
  64   <span class="identifier">value_reference</span> <a class="link" href="accessor.html#idm45414524311872-bb"><span class="identifier">get</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  65   <span class="identifier">value_reference</span> <a class="link" href="accessor.html#idm45414524310448-bb"><span class="keyword">operator</span> <span class="special">*</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  66   <span class="identifier">value_iterator</span> <a class="link" href="accessor.html#idm45414524309024-bb"><span class="keyword">operator</span><span class="special">-&gt;</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  67   <span class="identifier">axis</span><span class="special">::</span><span class="identifier">index_type</span> <a class="link" href="accessor.html#idm45414524307584-bb"><span class="identifier">index</span></a><span class="special">(</span><span class="keyword">unsigned</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  68   <a class="link" href="accessor/index_view.html" title="Class index_view">index_view</a> <a class="link" href="accessor.html#idm45414524304368-bb"><span class="identifier">indices</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  69   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">unsigned</span> N <span class="special">=</span> <span class="number">0</span><span class="special">&gt;</span>
  70     <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a class="link" href="accessor.html#idm45414524302816-bb"><span class="identifier">bin</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">integral_constant</span><span class="special">&lt;</span> <span class="keyword">unsigned</span><span class="special">,</span> <span class="identifier">N</span> <span class="special">&gt;</span> <span class="special">=</span> <span class="special">{</span><span class="special">}</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  71   <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a class="link" href="accessor.html#idm45414524298160-bb"><span class="identifier">bin</span></a><span class="special">(</span><span class="keyword">unsigned</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  72   <span class="keyword">double</span> <a class="link" href="accessor.html#idm45414524295232-bb"><span class="identifier">density</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  73   <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524292544-bb"><span class="keyword">operator</span><span class="special">&lt;</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  74   <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524290288-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  75   <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524288032-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  76   <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524285776-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  77   <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524283520-bb"><span class="keyword">operator</span><span class="special">&lt;=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  78   <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524281264-bb"><span class="keyword">operator</span><span class="special">&gt;=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  79   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524279008-bb"><span class="keyword">operator</span><span class="special">&lt;</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  80   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524276352-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  81   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524273696-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  82   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524271040-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  83   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524268384-bb"><span class="keyword">operator</span><span class="special">&lt;=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  84   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a class="link" href="accessor.html#idm45414524265728-bb"><span class="keyword">operator</span><span class="special">&gt;=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  85   <a class="link" href="accessor.html#idm45414524263072-bb"><span class="keyword">operator</span> <span class="identifier">value_type</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  86 <span class="special">}</span><span class="special">;</span></pre></div>
  87 <div class="refsect1">
  88 <a name="idm45212143433696"></a><h2>Description</h2>
  89 <p>The methods provide access to the current cell indices and bins. It acts like a pointer to the cell value, and in a limited way also like a reference. To interoperate with the algorithms of the standard library, the accessor is implicitly convertible to a cell value. Assignments and comparisons are passed through to the cell. An accessor is coupled to its parent <a class="link" href="../indexed_range.html#boost.histogram.indexed_range.iterator">indexed_range::iterator</a>. Moving the parent iterator forward also updates the linked accessor. Accessors are not copyable. They cannot be stored in containers, but <a class="link" href="../indexed_range.html#boost.histogram.indexed_range.iterator">indexed_range::iterator</a> can be stored. </p>
  90 <div class="refsect2">
  91 <a name="idm45212143430736"></a><h3>
  92 <a name="boost.histogram.indexed_range.accessorconstruct-copy-destruct"></a><code class="computeroutput">accessor</code>
  93         public
  94        construct/copy/destruct</h3>
  95 <div class="orderedlist"><ol class="orderedlist" type="1">
  96 <li class="listitem"><pre class="literallayout"><a name="idm45414524257392-bb"></a><span class="identifier">accessor</span><span class="special">(</span><a class="link" href="../indexed_range.html#boost.histogram.indexed_range.iterator">iterator</a> <span class="special">&amp;</span> i<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
  97 <li class="listitem"><pre class="literallayout"><a name="idm45414524255856-bb"></a><span class="identifier">accessor</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span><span class="special">)</span> <span class="special">=</span> <span class="keyword">default</span><span class="special">;</span></pre></li>
  98 <li class="listitem"><pre class="literallayout"><a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> <a name="idm45414524261792-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span><span class="special">;</span></pre></li>
  99 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> <a name="idm45414524259792-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span> <span class="special">&amp;</span> x<span class="special">)</span><span class="special">;</span></pre></li>
 100 </ol></div>
 101 </div>
 102 <div class="refsect2">
 103 <a name="idm45212143397392"></a><h3>
 104 <a name="idm45414524312432-bb"></a><code class="computeroutput">accessor</code> public member functions</h3>
 105 <div class="orderedlist"><ol class="orderedlist" type="1">
 106 <li class="listitem">
 107 <pre class="literallayout"><span class="identifier">value_reference</span> <a name="idm45414524311872-bb"></a><span class="identifier">get</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Returns the cell reference. </li>
 108 <li class="listitem">
 109 <pre class="literallayout"><span class="identifier">value_reference</span> <a name="idm45414524310448-bb"></a><span class="keyword">operator</span> <span class="special">*</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Returns the cell reference. </li>
 110 <li class="listitem">
 111 <pre class="literallayout"><span class="identifier">value_iterator</span> <a name="idm45414524309024-bb"></a><span class="keyword">operator</span><span class="special">-&gt;</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Access fields and methods of the cell object. </li>
 112 <li class="listitem">
 113 <pre class="literallayout"><span class="identifier">axis</span><span class="special">::</span><span class="identifier">index_type</span> <a name="idm45414524307584-bb"></a><span class="identifier">index</span><span class="special">(</span><span class="keyword">unsigned</span> d <span class="special">=</span> <span class="number">0</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Access current index. <p>
 114 </p>
 115 <div class="variablelist"><table border="0" class="variablelist compact">
 116 <colgroup>
 117 <col align="left" valign="top">
 118 <col>
 119 </colgroup>
 120 <tbody><tr>
 121 <td><p><span class="term">Parameters:</span></p></td>
 122 <td><div class="variablelist"><table border="0" class="variablelist compact">
 123 <colgroup>
 124 <col align="left" valign="top">
 125 <col>
 126 </colgroup>
 127 <tbody><tr>
 128 <td><p><span class="term"><code class="computeroutput">d</code></span></p></td>
 129 <td><p>axis dimension. </p></td>
 130 </tr></tbody>
 131 </table></div></td>
 132 </tr></tbody>
 133 </table></div>
 134 </li>
 135 <li class="listitem">
 136 <pre class="literallayout"><a class="link" href="accessor/index_view.html" title="Class index_view">index_view</a> <a name="idm45414524304368-bb"></a><span class="identifier">indices</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Access indices as an iterable range. </li>
 137 <li class="listitem">
 138 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">unsigned</span> N <span class="special">=</span> <span class="number">0</span><span class="special">&gt;</span>
 139   <span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a name="idm45414524302816-bb"></a><span class="identifier">bin</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">integral_constant</span><span class="special">&lt;</span> <span class="keyword">unsigned</span><span class="special">,</span> <span class="identifier">N</span> <span class="special">&gt;</span> <span class="special">=</span> <span class="special">{</span><span class="special">}</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Access current bin. <p>
 140 </p>
 141 <div class="variablelist"><table border="0" class="variablelist compact">
 142 <colgroup>
 143 <col align="left" valign="top">
 144 <col>
 145 </colgroup>
 146 <tbody><tr>
 147 <td><p><span class="term">Template Parameters:</span></p></td>
 148 <td><div class="variablelist"><table border="0" class="variablelist compact">
 149 <colgroup>
 150 <col align="left" valign="top">
 151 <col>
 152 </colgroup>
 153 <tbody><tr>
 154 <td><p><span class="term"><code class="computeroutput">N</code></span></p></td>
 155 <td><p>axis dimension. </p></td>
 156 </tr></tbody>
 157 </table></div></td>
 158 </tr></tbody>
 159 </table></div>
 160 </li>
 161 <li class="listitem">
 162 <pre class="literallayout"><span class="keyword">decltype</span><span class="special">(</span><span class="keyword">auto</span><span class="special">)</span> <a name="idm45414524298160-bb"></a><span class="identifier">bin</span><span class="special">(</span><span class="keyword">unsigned</span> d<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Access current bin. <p>
 163 </p>
 164 <div class="variablelist"><table border="0" class="variablelist compact">
 165 <colgroup>
 166 <col align="left" valign="top">
 167 <col>
 168 </colgroup>
 169 <tbody><tr>
 170 <td><p><span class="term">Parameters:</span></p></td>
 171 <td><div class="variablelist"><table border="0" class="variablelist compact">
 172 <colgroup>
 173 <col align="left" valign="top">
 174 <col>
 175 </colgroup>
 176 <tbody><tr>
 177 <td><p><span class="term"><code class="computeroutput">d</code></span></p></td>
 178 <td><p>axis dimension. </p></td>
 179 </tr></tbody>
 180 </table></div></td>
 181 </tr></tbody>
 182 </table></div>
 183 </li>
 184 <li class="listitem">
 185 <pre class="literallayout"><span class="keyword">double</span> <a name="idm45414524295232-bb"></a><span class="identifier">density</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Computes density in current cell. <p>The density is computed as the cell value divided by the product of bin widths. Axes without bin widths, like <code class="computeroutput"><a class="link" href="../axis/category.html" title="Class template category">axis::category</a></code>, are treated as having unit bin with. </p>
 186 </li>
 187 <li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45414524292544-bb"></a><span class="keyword">operator</span><span class="special">&lt;</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 188 <li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45414524290288-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 189 <li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45414524288032-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 190 <li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45414524285776-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 191 <li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45414524283520-bb"></a><span class="keyword">operator</span><span class="special">&lt;=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 192 <li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idm45414524281264-bb"></a><span class="keyword">operator</span><span class="special">&gt;=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="accessor.html" title="Class accessor">accessor</a> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 193 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45414524279008-bb"></a><span class="keyword">operator</span><span class="special">&lt;</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 194 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45414524276352-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 195 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45414524273696-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 196 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45414524271040-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 197 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45414524268384-bb"></a><span class="keyword">operator</span><span class="special">&lt;=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 198 <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> U<span class="special">&gt;</span> <span class="keyword">bool</span> <a name="idm45414524265728-bb"></a><span class="keyword">operator</span><span class="special">&gt;=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">U</span> <span class="special">&amp;</span> o<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 199 <li class="listitem"><pre class="literallayout"><a name="idm45414524263072-bb"></a><span class="keyword">operator</span> <span class="identifier">value_type</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 200 </ol></div>
 201 </div>
 202 </div>
 203 </div>
 204 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 205 <td align="left"></td>
 206 <td align="right"><div class="copyright-footer">Copyright &#169; 2016-2019 Hans
 207       Dembinski<p>
 208         Distributed under the Boost Software License, Version 1.0. (See accompanying
 209         file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 210       </p>
 211 </div></td>
 212 </tr></table>
 213 <hr>
 214 <div class="spirit-nav">
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