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  19 <a name="boost.log.basic_settings_section"></a><div class="titlepage"></div>
  20 <div class="refnamediv">
  21 <h2><span class="refentrytitle">Class template basic_settings_section</span></h2>
  22 <p>boost::log::basic_settings_section &#8212; The class represents a reference to the settings container section. </p>
  23 </div>
  24 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  25 <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="../../utilities.html#header.boost.log.utility.setup.settings_hpp" title="Header &lt;boost/log/utility/setup/settings.hpp&gt;">boost/log/utility/setup/settings.hpp</a>&gt;
  26
  27 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> CharT<span class="special">&gt;</span>
  28 <span class="keyword">class</span> <a class="link" href="basic_settings_section.html" title="Class template basic_settings_section">basic_settings_section</a> <span class="special">{</span>
  29 <span class="keyword">public</span><span class="special">:</span>
  30   <span class="comment">// <a class="link" href="basic_settings_section.html#boost.log.basic_settings_sectiontypes">types</a></span>
  31   <span class="keyword">typedef</span> <span class="identifier">CharT</span>                                                  <a name="boost.log.basic_settings_section.char_type"></a><span class="identifier">char_type</span><span class="special">;</span>           <span class="comment">// Character type. </span>
  32   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_string</span><span class="special">&lt;</span> <span class="identifier">char_type</span> <span class="special">&gt;</span>                         <a name="boost.log.basic_settings_section.string_type"></a><span class="identifier">string_type</span><span class="special">;</span>         <span class="comment">// String type. </span>
  33   <span class="keyword">typedef</span> <span class="identifier">property_tree</span><span class="special">::</span><span class="identifier">basic_ptree</span><span class="special">&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">,</span> <span class="identifier">string_type</span> <span class="special">&gt;</span> <a name="boost.log.basic_settings_section.property_tree_type"></a><span class="identifier">property_tree_type</span><span class="special">;</span>  <span class="comment">// Property tree type. </span>
  34   <span class="keyword">typedef</span> <span class="identifier">property_tree_type</span><span class="special">::</span><span class="identifier">path_type</span>                          <a name="boost.log.basic_settings_section.path_type"></a><span class="identifier">path_type</span><span class="special">;</span>           <span class="comment">// Property tree path type. </span>
  35   <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span>                                 <a class="link" href="basic_settings_section.html#boost.log.basic_settings_section.const_reference"><span class="identifier">const_reference</span></a><span class="special">;</span>
  36   <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span>                                 <a class="link" href="basic_settings_section.html#boost.log.basic_settings_section.reference"><span class="identifier">reference</span></a><span class="special">;</span>
  37   <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span>                                 <a class="link" href="basic_settings_section.html#boost.log.basic_settings_section.const_iterator"><span class="identifier">const_iterator</span></a><span class="special">;</span>
  38   <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span>                                 <a class="link" href="basic_settings_section.html#boost.log.basic_settings_section.iterator"><span class="identifier">iterator</span></a><span class="special">;</span>
  39
  40   <span class="comment">// <a class="link" href="basic_settings_section.html#boost.log.basic_settings_sectionconstruct-copy-destruct">construct/copy/destruct</a></span>
  41   <a class="link" href="basic_settings_section.html#idm45711342737824-bb"><span class="identifier">basic_settings_section</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  42   <a class="link" href="basic_settings_section.html#idm45711342737072-bb"><span class="identifier">basic_settings_section</span></a><span class="special">(</span><a class="link" href="basic_settings_section.html" title="Class template basic_settings_section">basic_settings_section</a> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  43   <span class="keyword">explicit</span> <a class="link" href="basic_settings_section.html#idm45711342734656-bb"><span class="identifier">basic_settings_section</span></a><span class="special">(</span><span class="identifier">property_tree_type</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
  44
  45   <span class="comment">// <a class="link" href="basic_settings_section.html#idm45711342781776-bb">public member functions</a></span>
  46   <span class="keyword">explicit</span> <a class="link" href="basic_settings_section.html#idm45711342781216-bb"><span class="keyword">operator</span> <span class="keyword">bool</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  47   <span class="keyword">bool</span> <a class="link" href="basic_settings_section.html#idm45711342779376-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>
  48   <span class="identifier">iterator</span> <a class="link" href="basic_settings_section.html#idm45711342777808-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  49   <span class="identifier">iterator</span> <a class="link" href="basic_settings_section.html#idm45711342776496-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  50   <span class="identifier">const_iterator</span> <a class="link" href="basic_settings_section.html#idm45711342775184-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  51   <span class="identifier">const_iterator</span> <a class="link" href="basic_settings_section.html#idm45711342773600-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  52   <span class="identifier">reverse_iterator</span> <a class="link" href="basic_settings_section.html#idm45711342772016-bb"><span class="identifier">rbegin</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  53   <span class="identifier">reverse_iterator</span> <a class="link" href="basic_settings_section.html#idm45711342770704-bb"><span class="identifier">rend</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  54   <span class="identifier">const_reverse_iterator</span> <a class="link" href="basic_settings_section.html#idm45711342769392-bb"><span class="identifier">rbegin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  55   <span class="identifier">const_reverse_iterator</span> <a class="link" href="basic_settings_section.html#idm45711342767808-bb"><span class="identifier">rend</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  56   <span class="keyword">bool</span> <a class="link" href="basic_settings_section.html#idm45711342766224-bb"><span class="identifier">empty</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  57   <span class="identifier">reference</span> <a class="link" href="basic_settings_section.html#idm45711342764624-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  58   <span class="identifier">const_reference</span> <a class="link" href="basic_settings_section.html#idm45711342761168-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  59   <span class="identifier">reference</span> <a class="link" href="basic_settings_section.html#idm45711342757440-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span><span class="special">)</span><span class="special">;</span>
  60   <span class="identifier">const_reference</span> <a class="link" href="basic_settings_section.html#idm45711342753984-bb"><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span></a><span class="special">(</span><span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  61   <span class="identifier">property_tree_type</span> <span class="keyword">const</span>  <span class="special">&amp;</span> <a class="link" href="basic_settings_section.html#idm45711342750256-bb"><span class="identifier">property_tree</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  62   <span class="identifier">property_tree_type</span> <span class="special">&amp;</span> <a class="link" href="basic_settings_section.html#idm45711342748672-bb"><span class="identifier">property_tree</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  63   <span class="keyword">bool</span> <a class="link" href="basic_settings_section.html#idm45711342747376-bb"><span class="identifier">has_section</span></a><span class="special">(</span><span class="identifier">string_type</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  64   <span class="keyword">bool</span> <a class="link" href="basic_settings_section.html#idm45711342744384-bb"><span class="identifier">has_parameter</span></a><span class="special">(</span><span class="identifier">string_type</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">string_type</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  65   <span class="keyword">void</span> <a class="link" href="basic_settings_section.html#idm45711342740256-bb"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="basic_settings_section.html" title="Class template basic_settings_section">basic_settings_section</a> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  66 <span class="special">}</span><span class="special">;</span></pre></div>
  67 <div class="refsect1">
  68 <a name="idm45554720836464"></a><h2>Description</h2>
  69 <p>The section refers to a sub-tree of the library settings container. It does not own the referred sub-tree but allows for convenient access to parameters within the subsection. </p>
  70 <div class="refsect2">
  71 <a name="idm45554720835600"></a><h3>
  72 <a name="boost.log.basic_settings_sectiontypes"></a><code class="computeroutput">basic_settings_section</code>
  73         public
  74        types</h3>
  75 <div class="orderedlist"><ol class="orderedlist" type="1">
  76 <li class="listitem">
  77 <p>
  78 <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <a name="boost.log.basic_settings_section.const_reference"></a><span class="identifier">const_reference</span><span class="special">;</span></p>
  79 <p>Constant reference to the parameter value </p>
  80 </li>
  81 <li class="listitem">
  82 <p>
  83 <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <a name="boost.log.basic_settings_section.reference"></a><span class="identifier">reference</span><span class="special">;</span></p>
  84 <p>Mutable reference to the parameter value </p>
  85 </li>
  86 <li class="listitem">
  87 <p>
  88 <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <a name="boost.log.basic_settings_section.const_iterator"></a><span class="identifier">const_iterator</span><span class="special">;</span></p>
  89 <p>Constant iterator over nested parameters and subsections </p>
  90 </li>
  91 <li class="listitem">
  92 <p>
  93 <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <a name="boost.log.basic_settings_section.iterator"></a><span class="identifier">iterator</span><span class="special">;</span></p>
  94 <p>Mutable iterator over nested parameters and subsections </p>
  95 </li>
  96 </ol></div>
  97 </div>
  98 <div class="refsect2">
  99 <a name="idm45554720818192"></a><h3>
 100 <a name="boost.log.basic_settings_sectionconstruct-copy-destruct"></a><code class="computeroutput">basic_settings_section</code>
 101         public
 102        construct/copy/destruct</h3>
 103 <div class="orderedlist"><ol class="orderedlist" type="1">
 104 <li class="listitem">
 105 <pre class="literallayout"><a name="idm45711342737824-bb"></a><span class="identifier">basic_settings_section</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 106 <p>Default constructor. Creates an empty settings container. </p>
 107 </li>
 108 <li class="listitem">
 109 <pre class="literallayout"><a name="idm45711342737072-bb"></a><span class="identifier">basic_settings_section</span><span class="special">(</span><a class="link" href="basic_settings_section.html" title="Class template basic_settings_section">basic_settings_section</a> <span class="keyword">const</span> <span class="special">&amp;</span> that<span class="special">)</span><span class="special">;</span></pre>
 110 <p>Copy constructor. </p>
 111 </li>
 112 <li class="listitem"><pre class="literallayout"><span class="keyword">explicit</span> <a name="idm45711342734656-bb"></a><span class="identifier">basic_settings_section</span><span class="special">(</span><span class="identifier">property_tree_type</span> <span class="special">*</span> tree<span class="special">)</span><span class="special">;</span></pre></li>
 113 </ol></div>
 114 </div>
 115 <div class="refsect2">
 116 <a name="idm45554720800080"></a><h3>
 117 <a name="idm45711342781776-bb"></a><code class="computeroutput">basic_settings_section</code> public member functions</h3>
 118 <div class="orderedlist"><ol class="orderedlist" type="1">
 119 <li class="listitem">
 120 <pre class="literallayout"><span class="keyword">explicit</span> <a name="idm45711342781216-bb"></a><span class="keyword">operator</span> <span class="keyword">bool</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 121 <p>Checks if the section refers to the container. </p>
 122 </li>
 123 <li class="listitem">
 124 <pre class="literallayout"><span class="keyword">bool</span> <a name="idm45711342779376-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>
 125 <p>Checks if the section refers to the container. </p>
 126 </li>
 127 <li class="listitem">
 128 <pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45711342777808-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 129 <p>Returns an iterator over the nested subsections and parameters. </p>
 130 </li>
 131 <li class="listitem">
 132 <pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45711342776496-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 133 <p>Returns an iterator over the nested subsections and parameters. </p>
 134 </li>
 135 <li class="listitem">
 136 <pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45711342775184-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 137 <p>Returns an iterator over the nested subsections and parameters. </p>
 138 </li>
 139 <li class="listitem">
 140 <pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45711342773600-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 141 <p>Returns an iterator over the nested subsections and parameters. </p>
 142 </li>
 143 <li class="listitem">
 144 <pre class="literallayout"><span class="identifier">reverse_iterator</span> <a name="idm45711342772016-bb"></a><span class="identifier">rbegin</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 145 <p>Returns a reverse iterator over the nested subsections and parameters. </p>
 146 </li>
 147 <li class="listitem">
 148 <pre class="literallayout"><span class="identifier">reverse_iterator</span> <a name="idm45711342770704-bb"></a><span class="identifier">rend</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 149 <p>Returns a reverse iterator over the nested subsections and parameters. </p>
 150 </li>
 151 <li class="listitem">
 152 <pre class="literallayout"><span class="identifier">const_reverse_iterator</span> <a name="idm45711342769392-bb"></a><span class="identifier">rbegin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 153 <p>Returns a reverse iterator over the nested subsections and parameters. </p>
 154 </li>
 155 <li class="listitem">
 156 <pre class="literallayout"><span class="identifier">const_reverse_iterator</span> <a name="idm45711342767808-bb"></a><span class="identifier">rend</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 157 <p>Returns a reverse iterator over the nested subsections and parameters. </p>
 158 </li>
 159 <li class="listitem">
 160 <pre class="literallayout"><span class="keyword">bool</span> <a name="idm45711342766224-bb"></a><span class="identifier">empty</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 161 <p>Checks if the container is empty (i.e. contains no sections and parameters). </p>
 162 </li>
 163 <li class="listitem">
 164 <pre class="literallayout"><span class="identifier">reference</span> <a name="idm45711342764624-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span> section_name<span class="special">)</span><span class="special">;</span></pre>
 165 <p>Accessor to a single parameter. This operator should be used in conjunction with the subsequent subscript operator that designates the parameter name.</p>
 166 <p>
 167
 168 </p>
 169 <div class="variablelist"><table border="0" class="variablelist compact">
 170 <colgroup>
 171 <col align="left" valign="top">
 172 <col>
 173 </colgroup>
 174 <tbody>
 175 <tr>
 176 <td><p><span class="term">Parameters:</span></p></td>
 177 <td><div class="variablelist"><table border="0" class="variablelist compact">
 178 <colgroup>
 179 <col align="left" valign="top">
 180 <col>
 181 </colgroup>
 182 <tbody><tr>
 183 <td><p><span class="term"><code class="computeroutput">section_name</code></span></p></td>
 184 <td><p>The name of the section in which the parameter resides </p></td>
 185 </tr></tbody>
 186 </table></div></td>
 187 </tr>
 188 <tr>
 189 <td><p><span class="term">Returns:</span></p></td>
 190 <td><p>An unspecified reference type that can be used for parameter name specifying </p></td>
 191 </tr>
 192 </tbody>
 193 </table></div>
 194 </li>
 195 <li class="listitem">
 196 <pre class="literallayout"><span class="identifier">const_reference</span> <a name="idm45711342761168-bb"></a><span class="keyword">operator</span><span class="special">[</span><span class="special">]</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="keyword">const</span> <span class="special">&amp;</span> section_name<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 197 <p>Accessor to a single parameter. This operator should be used in conjunction with the subsequent subscript operator that designates the parameter name.</p>
 198 <p>
 199
 200 </p>
 201 <div class="variablelist"><table border="0" class="variablelist compact">
 202 <colgroup>
 203 <col align="left" valign="top">
 204 <col>
 205 </colgroup>
 206 <tbody>
 207 <tr>
 208 <td><p><span class="term">Parameters:</span></p></td>
 209 <td><div class="variablelist"><table border="0" class="variablelist compact">
 210 <colgroup>
 211 <col align="left" valign="top">
 212 <col>
 213 </colgroup>
 214 <tbody><tr>
 215 <td><p><span class="term"><code class="computeroutput">section_name</code></span></p></td>
 216 <td><p>The name of the section in which the parameter resides </p></td>
 217 </tr></tbody>
 218 </table></div></td>
 219 </tr>
 220 <tr>
 221 <td><p><span class="term">Returns:</span></p></td>
 222 <td><p>An unspecified reference type that can be used for parameter name specifying </p></td>
 223 </tr>
 224 </tbody>
 225 </table></div>
 226 </li>
 227 <li class="listitem">
 228 <pre class="literallayout"><span class="identifier">reference</span> <a name="idm45711342757440-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">char</span> <span class="special">*</span> section_name<span class="special">)</span><span class="special">;</span></pre>
 229 <p>Accessor to a single parameter. This operator should be used in conjunction with the subsequent subscript operator that designates the parameter name.</p>
 230 <p>
 231
 232 </p>
 233 <div class="variablelist"><table border="0" class="variablelist compact">
 234 <colgroup>
 235 <col align="left" valign="top">
 236 <col>
 237 </colgroup>
 238 <tbody>
 239 <tr>
 240 <td><p><span class="term">Parameters:</span></p></td>
 241 <td><div class="variablelist"><table border="0" class="variablelist compact">
 242 <colgroup>
 243 <col align="left" valign="top">
 244 <col>
 245 </colgroup>
 246 <tbody><tr>
 247 <td><p><span class="term"><code class="computeroutput">section_name</code></span></p></td>
 248 <td><p>The name of the section in which the parameter resides </p></td>
 249 </tr></tbody>
 250 </table></div></td>
 251 </tr>
 252 <tr>
 253 <td><p><span class="term">Returns:</span></p></td>
 254 <td><p>An unspecified reference type that can be used for parameter name specifying </p></td>
 255 </tr>
 256 </tbody>
 257 </table></div>
 258 </li>
 259 <li class="listitem">
 260 <pre class="literallayout"><span class="identifier">const_reference</span> <a name="idm45711342753984-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">char</span> <span class="special">*</span> section_name<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 261 <p>Accessor to a single parameter. This operator should be used in conjunction with the subsequent subscript operator that designates the parameter name.</p>
 262 <p>
 263
 264 </p>
 265 <div class="variablelist"><table border="0" class="variablelist compact">
 266 <colgroup>
 267 <col align="left" valign="top">
 268 <col>
 269 </colgroup>
 270 <tbody>
 271 <tr>
 272 <td><p><span class="term">Parameters:</span></p></td>
 273 <td><div class="variablelist"><table border="0" class="variablelist compact">
 274 <colgroup>
 275 <col align="left" valign="top">
 276 <col>
 277 </colgroup>
 278 <tbody><tr>
 279 <td><p><span class="term"><code class="computeroutput">section_name</code></span></p></td>
 280 <td><p>The name of the section in which the parameter resides </p></td>
 281 </tr></tbody>
 282 </table></div></td>
 283 </tr>
 284 <tr>
 285 <td><p><span class="term">Returns:</span></p></td>
 286 <td><p>An unspecified reference type that can be used for parameter name specifying </p></td>
 287 </tr>
 288 </tbody>
 289 </table></div>
 290 </li>
 291 <li class="listitem">
 292 <pre class="literallayout"><span class="identifier">property_tree_type</span> <span class="keyword">const</span>  <span class="special">&amp;</span> <a name="idm45711342750256-bb"></a><span class="identifier">property_tree</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 293 <p>Accessor for the embedded property tree </p>
 294 </li>
 295 <li class="listitem">
 296 <pre class="literallayout"><span class="identifier">property_tree_type</span> <span class="special">&amp;</span> <a name="idm45711342748672-bb"></a><span class="identifier">property_tree</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 297 <p>Accessor for the embedded property tree </p>
 298 </li>
 299 <li class="listitem">
 300 <pre class="literallayout"><span class="keyword">bool</span> <a name="idm45711342747376-bb"></a><span class="identifier">has_section</span><span class="special">(</span><span class="identifier">string_type</span> <span class="keyword">const</span> <span class="special">&amp;</span> section_name<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 301 <p>Checks if the specified section is present in the container.</p>
 302 <p>
 303 </p>
 304 <div class="variablelist"><table border="0" class="variablelist compact">
 305 <colgroup>
 306 <col align="left" valign="top">
 307 <col>
 308 </colgroup>
 309 <tbody><tr>
 310 <td><p><span class="term">Parameters:</span></p></td>
 311 <td><div class="variablelist"><table border="0" class="variablelist compact">
 312 <colgroup>
 313 <col align="left" valign="top">
 314 <col>
 315 </colgroup>
 316 <tbody><tr>
 317 <td><p><span class="term"><code class="computeroutput">section_name</code></span></p></td>
 318 <td><p>The name of the section </p></td>
 319 </tr></tbody>
 320 </table></div></td>
 321 </tr></tbody>
 322 </table></div>
 323 </li>
 324 <li class="listitem">
 325 <pre class="literallayout"><span class="keyword">bool</span> <a name="idm45711342744384-bb"></a><span class="identifier">has_parameter</span><span class="special">(</span><span class="identifier">string_type</span> <span class="keyword">const</span> <span class="special">&amp;</span> section_name<span class="special">,</span>
 326                    <span class="identifier">string_type</span> <span class="keyword">const</span> <span class="special">&amp;</span> param_name<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 327 <p>Checks if the specified parameter is present in the container.</p>
 328 <p>
 329 </p>
 330 <div class="variablelist"><table border="0" class="variablelist compact">
 331 <colgroup>
 332 <col align="left" valign="top">
 333 <col>
 334 </colgroup>
 335 <tbody><tr>
 336 <td><p><span class="term">Parameters:</span></p></td>
 337 <td><div class="variablelist"><table border="0" class="variablelist compact">
 338 <colgroup>
 339 <col align="left" valign="top">
 340 <col>
 341 </colgroup>
 342 <tbody>
 343 <tr>
 344 <td><p><span class="term"><code class="computeroutput">param_name</code></span></p></td>
 345 <td><p>The name of the parameter </p></td>
 346 </tr>
 347 <tr>
 348 <td><p><span class="term"><code class="computeroutput">section_name</code></span></p></td>
 349 <td><p>The name of the section in which the parameter resides </p></td>
 350 </tr>
 351 </tbody>
 352 </table></div></td>
 353 </tr></tbody>
 354 </table></div>
 355 </li>
 356 <li class="listitem">
 357 <pre class="literallayout"><span class="keyword">void</span> <a name="idm45711342740256-bb"></a><span class="identifier">swap</span><span class="special">(</span><a class="link" href="basic_settings_section.html" title="Class template basic_settings_section">basic_settings_section</a> <span class="special">&amp;</span> that<span class="special">)</span><span class="special">;</span></pre>
 358 <p>Swaps two references to settings sections. </p>
 359 </li>
 360 </ol></div>
 361 </div>
 362 </div>
 363 </div>
 364 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 365 <td align="left"></td>
 366 <td align="right"><div class="copyright-footer">Copyright &#169; 2007-2016 Andrey Semashev<p>
 367         Distributed under the Boost Software License, Version 1.0. (See accompanying
 368         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>).
 369       </p>
 370 </div></td>
 371 </tr></table>
 372 <hr>
 373 <div class="spirit-nav">
 374 <a accesskey="p" href="basic_settings.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../utilities.html#header.boost.log.utility.setup.settings_hpp"><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="swap_idm45711342727568.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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