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19 <div class="titlepage"><div><div><h3 class="title">
20 <a name="attributes"></a>Attributes</h3></div></div></div>
21 <div class="toc"><dl class="toc">
22 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_hpp">Header <boost/log/attributes/attribute.hpp></a></span></dt>
23 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_cast_hpp">Header <boost/log/attributes/attribute_cast.hpp></a></span></dt>
24 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_name_hpp">Header <boost/log/attributes/attribute_name.hpp></a></span></dt>
25 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_set_hpp">Header <boost/log/attributes/attribute_set.hpp></a></span></dt>
26 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_value_hpp">Header <boost/log/attributes/attribute_value.hpp></a></span></dt>
27 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_value_impl_hpp">Header <boost/log/attributes/attribute_value_impl.hpp></a></span></dt>
28 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.attribute_value_set_hpp">Header <boost/log/attributes/attribute_value_set.hpp></a></span></dt>
29 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.clock_hpp">Header <boost/log/attributes/clock.hpp></a></span></dt>
30 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.constant_hpp">Header <boost/log/attributes/constant.hpp></a></span></dt>
31 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.counter_hpp">Header <boost/log/attributes/counter.hpp></a></span></dt>
32 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.current_process_id_hpp">Header <boost/log/attributes/current_process_id.hpp></a></span></dt>
33 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.current_process_name_hpp">Header <boost/log/attributes/current_process_name.hpp></a></span></dt>
34 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.current_thread_id_hpp">Header <boost/log/attributes/current_thread_id.hpp></a></span></dt>
35 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.fallback_policy_hpp">Header <boost/log/attributes/fallback_policy.hpp></a></span></dt>
36 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.fallback_policy_fwd_hpp">Header <boost/log/attributes/fallback_policy_fwd.hpp></a></span></dt>
37 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.function_hpp">Header <boost/log/attributes/function.hpp></a></span></dt>
38 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.mutable_constant_hpp">Header <boost/log/attributes/mutable_constant.hpp></a></span></dt>
39 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.named_scope_hpp">Header <boost/log/attributes/named_scope.hpp></a></span></dt>
40 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.scoped_attribute_hpp">Header <boost/log/attributes/scoped_attribute.hpp></a></span></dt>
41 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.time_traits_hpp">Header <boost/log/attributes/time_traits.hpp></a></span></dt>
42 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.timer_hpp">Header <boost/log/attributes/timer.hpp></a></span></dt>
43 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.value_extraction_hpp">Header <boost/log/attributes/value_extraction.hpp></a></span></dt>
44 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.value_extraction_fwd_hpp">Header <boost/log/attributes/value_extraction_fwd.hpp></a></span></dt>
45 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.value_visitation_hpp">Header <boost/log/attributes/value_visitation.hpp></a></span></dt>
46 <dt><span class="section"><a href="attributes.html#header.boost.log.attributes.value_visitation_fwd_hpp">Header <boost/log/attributes/value_visitation_fwd.hpp></a></span></dt>
49 <div class="titlepage"><div><div><h4 class="title">
50 <a name="header.boost.log.attributes.attribute_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute.hpp" target="_top">boost/log/attributes/attribute.hpp</a>></h4></div></div></div>
51 <p>Andrey Semashev </p>
56 The header contains attribute interface definition. </p>
57 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
58 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
59 <span class="keyword">class</span> <a class="link" href="boost/log/attribute.html" title="Class attribute">attribute</a><span class="special">;</span>
60 <span class="keyword">void</span> <a class="link" href="boost/log/swap_idp43177536.html" title="Function swap"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="boost/log/attribute.html" title="Class attribute">attribute</a> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute.html" title="Class attribute">attribute</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
61 <span class="special">}</span>
62 <span class="special">}</span></pre>
65 <div class="titlepage"><div><div><h4 class="title">
66 <a name="header.boost.log.attributes.attribute_cast_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute_cast.hpp" target="_top">boost/log/attributes/attribute_cast.hpp</a>></h4></div></div></div>
67 <p>Andrey Semashev </p>
72 The header contains utilities for casting between attribute factories. </p>
73 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
74 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
75 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="identifier">T</span> <a class="link" href="boost/log/attribute_cast.html" title="Function template attribute_cast"><span class="identifier">attribute_cast</span></a><span class="special">(</span><a class="link" href="boost/log/attribute.html" title="Class attribute">attribute</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
76 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
77 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/cast_source.html" title="Class cast_source">cast_source</a><span class="special">;</span>
78 <span class="special">}</span>
79 <span class="special">}</span>
80 <span class="special">}</span></pre>
83 <div class="titlepage"><div><div><h4 class="title">
84 <a name="header.boost.log.attributes.attribute_name_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute_name.hpp" target="_top">boost/log/attributes/attribute_name.hpp</a>></h4></div></div></div>
85 <p>Andrey Semashev </p>
90 The header contains attribute name interface definition. </p>
91 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
92 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
93 <span class="keyword">class</span> <a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a><span class="special">;</span>
94 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> TraitsT<span class="special">></span>
95 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">TraitsT</span> <span class="special">></span> <span class="special">&</span>
96 <a class="link" href="boost/log/operator_idp43249840.html" title="Function template operator<<"><span class="keyword">operator</span><span class="special"><<</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">TraitsT</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span>
97 <a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
98 <span class="special">}</span>
99 <span class="special">}</span></pre>
101 <div class="section">
102 <div class="titlepage"><div><div><h4 class="title">
103 <a name="header.boost.log.attributes.attribute_set_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute_set.hpp" target="_top">boost/log/attributes/attribute_set.hpp</a>></h4></div></div></div>
104 <p>Andrey Semashev </p>
109 This header contains definition of the attribute set container. </p>
110 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
111 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
112 <span class="keyword">class</span> <a class="link" href="boost/log/attribute_set.html" title="Class attribute_set">attribute_set</a><span class="special">;</span>
113 <span class="keyword">void</span> <a class="link" href="boost/log/swap_idp43356384.html" title="Function swap"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_set.html" title="Class attribute_set">attribute_set</a> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_set.html" title="Class attribute_set">attribute_set</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
114 <span class="special">}</span>
115 <span class="special">}</span></pre>
117 <div class="section">
118 <div class="titlepage"><div><div><h4 class="title">
119 <a name="header.boost.log.attributes.attribute_value_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute_value.hpp" target="_top">boost/log/attributes/attribute_value.hpp</a>></h4></div></div></div>
120 <p>Andrey Semashev </p>
125 The header contains <code class="computeroutput">attribute_value</code> class definition. </p>
126 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
127 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
128 <span class="keyword">class</span> <a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a><span class="special">;</span>
129 <span class="keyword">void</span> <a class="link" href="boost/log/swap_idp43449328.html" title="Function swap"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
130 <span class="special">}</span>
131 <span class="special">}</span></pre>
133 <div class="section">
134 <div class="titlepage"><div><div><h4 class="title">
135 <a name="header.boost.log.attributes.attribute_value_impl_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute_value_impl.hpp" target="_top">boost/log/attributes/attribute_value_impl.hpp</a>></h4></div></div></div>
136 <p>Andrey Semashev </p>
141 The header contains an implementation of a basic attribute value implementation class. </p>
142 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
143 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
144 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
145 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/attributes/attribute_value_impl.html" title="Class template attribute_value_impl">attribute_value_impl</a><span class="special">;</span>
146 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <a class="link" href="boost/log/attributes/make_attribute_value.html" title="Function template make_attribute_value"><span class="identifier">make_attribute_value</span></a><span class="special">(</span><span class="identifier">T</span> <span class="special">&&</span><span class="special">)</span><span class="special">;</span>
147 <span class="special">}</span>
148 <span class="special">}</span>
149 <span class="special">}</span></pre>
151 <div class="section">
152 <div class="titlepage"><div><div><h4 class="title">
153 <a name="header.boost.log.attributes.attribute_value_set_hpp"></a>Header <<a href="../../../../boost/log/attributes/attribute_value_set.hpp" target="_top">boost/log/attributes/attribute_value_set.hpp</a>></h4></div></div></div>
154 <p>Andrey Semashev </p>
159 This header file contains definition of attribute value set. The set is constructed from three attribute sets (global, thread-specific and source-specific) and contains attribute values. </p>
160 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
161 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
162 <span class="keyword">class</span> <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a><span class="special">;</span>
163 <span class="keyword">void</span> <a class="link" href="boost/log/swap_idp43589440.html" title="Function swap"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
164 <span class="special">}</span>
165 <span class="special">}</span></pre>
167 <div class="section">
168 <div class="titlepage"><div><div><h4 class="title">
169 <a name="header.boost.log.attributes.clock_hpp"></a>Header <<a href="../../../../boost/log/attributes/clock.hpp" target="_top">boost/log/attributes/clock.hpp</a>></h4></div></div></div>
170 <p>Andrey Semashev </p>
175 The header contains wall clock attribute implementation and typedefs. </p>
176 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
177 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
178 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
179 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> TimeTraitsT<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/attributes/basic_clock.html" title="Class template basic_clock">basic_clock</a><span class="special">;</span>
181 <span class="keyword">typedef</span> <a class="link" href="boost/log/attributes/basic_clock.html" title="Class template basic_clock">basic_clock</a><span class="special"><</span> <a class="link" href="boost/log/attributes/utc_time_traits.html" title="Struct utc_time_traits">utc_time_traits</a> <span class="special">></span> <a name="boost.log.attributes.utc_clock"></a><span class="identifier">utc_clock</span><span class="special">;</span> <span class="comment">// Attribute that returns current UTC time. </span>
182 <span class="keyword">typedef</span> <a class="link" href="boost/log/attributes/basic_clock.html" title="Class template basic_clock">basic_clock</a><span class="special"><</span> <a class="link" href="boost/log/attributes/local_time_traits.html" title="Struct local_time_traits">local_time_traits</a> <span class="special">></span> <a name="boost.log.attributes.local_clock"></a><span class="identifier">local_clock</span><span class="special">;</span> <span class="comment">// Attribute that returns current local time. </span>
183 <span class="special">}</span>
184 <span class="special">}</span>
185 <span class="special">}</span></pre>
187 <div class="section">
188 <div class="titlepage"><div><div><h4 class="title">
189 <a name="header.boost.log.attributes.constant_hpp"></a>Header <<a href="../../../../boost/log/attributes/constant.hpp" target="_top">boost/log/attributes/constant.hpp</a>></h4></div></div></div>
190 <p>Andrey Semashev </p>
195 The header contains implementation of a constant attribute. </p>
196 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
197 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
198 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
199 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/attributes/constant.html" title="Class template constant">constant</a><span class="special">;</span>
200 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/attributes/make_constant.html" title="Function template make_constant"><span class="identifier">make_constant</span></a><span class="special">(</span><span class="identifier">BOOST_FWD_REF</span><span class="special">(</span><span class="identifier">T</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
201 <span class="special">}</span>
202 <span class="special">}</span>
203 <span class="special">}</span></pre>
205 <div class="section">
206 <div class="titlepage"><div><div><h4 class="title">
207 <a name="header.boost.log.attributes.counter_hpp"></a>Header <<a href="../../../../boost/log/attributes/counter.hpp" target="_top">boost/log/attributes/counter.hpp</a>></h4></div></div></div>
208 <p>Andrey Semashev </p>
213 The header contains implementation of the counter attribute. </p>
214 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
215 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
216 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
217 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/attributes/counter.html" title="Class template counter">counter</a><span class="special">;</span>
218 <span class="special">}</span>
219 <span class="special">}</span>
220 <span class="special">}</span></pre>
222 <div class="section">
223 <div class="titlepage"><div><div><h4 class="title">
224 <a name="header.boost.log.attributes.current_process_id_hpp"></a>Header <<a href="../../../../boost/log/attributes/current_process_id.hpp" target="_top">boost/log/attributes/current_process_id.hpp</a>></h4></div></div></div>
225 <p>Andrey Semashev </p>
230 The header contains implementation of a current process id attribute </p>
231 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
232 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
233 <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.log.process_id"></a><span class="identifier">process_id</span><span class="special">;</span> <span class="comment">// Process identifier type used by the library. </span>
234 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
235 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/current_process_id.html" title="Class current_process_id">current_process_id</a><span class="special">;</span>
236 <span class="special">}</span>
237 <span class="special">}</span>
238 <span class="special">}</span></pre>
240 <div class="section">
241 <div class="titlepage"><div><div><h4 class="title">
242 <a name="header.boost.log.attributes.current_process_name_hpp"></a>Header <<a href="../../../../boost/log/attributes/current_process_name.hpp" target="_top">boost/log/attributes/current_process_name.hpp</a>></h4></div></div></div>
243 <p>Andrey Semashev </p>
248 The header contains implementation of a current process name attribute </p>
249 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
250 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
251 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
252 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/current_process_name.html" title="Class current_process_name">current_process_name</a><span class="special">;</span>
253 <span class="special">}</span>
254 <span class="special">}</span>
255 <span class="special">}</span></pre>
257 <div class="section">
258 <div class="titlepage"><div><div><h4 class="title">
259 <a name="header.boost.log.attributes.current_thread_id_hpp"></a>Header <<a href="../../../../boost/log/attributes/current_thread_id.hpp" target="_top">boost/log/attributes/current_thread_id.hpp</a>></h4></div></div></div>
260 <p>Andrey Semashev </p>
265 The header contains implementation of a current thread id attribute </p>
266 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
267 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
268 <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.log.thread_id"></a><span class="identifier">thread_id</span><span class="special">;</span> <span class="comment">// Thread identifier type. </span>
269 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
270 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/current_thread_id.html" title="Class current_thread_id">current_thread_id</a><span class="special">;</span>
271 <span class="special">}</span>
272 <span class="special">}</span>
273 <span class="special">}</span></pre>
275 <div class="section">
276 <div class="titlepage"><div><div><h4 class="title">
277 <a name="header.boost.log.attributes.fallback_policy_hpp"></a>Header <<a href="../../../../boost/log/attributes/fallback_policy.hpp" target="_top">boost/log/attributes/fallback_policy.hpp</a>></h4></div></div></div>
278 <p>Andrey Semashev </p>
283 The header contains definition of fallback policies when attribute value visitation or extraction fails. </p>
284 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
285 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
286 <span class="keyword">struct</span> <a class="link" href="boost/log/fallback_to_none.html" title="Struct fallback_to_none">fallback_to_none</a><span class="special">;</span>
287 <span class="keyword">struct</span> <a class="link" href="boost/log/fallback_to_throw.html" title="Struct fallback_to_throw">fallback_to_throw</a><span class="special">;</span>
288 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DefaultT<span class="special">></span> <span class="keyword">struct</span> <a class="link" href="boost/log/fallback_to_default.html" title="Struct template fallback_to_default">fallback_to_default</a><span class="special">;</span>
289 <span class="special">}</span>
290 <span class="special">}</span></pre>
292 <div class="section">
293 <div class="titlepage"><div><div><h4 class="title">
294 <a name="header.boost.log.attributes.fallback_policy_fwd_hpp"></a>Header <<a href="../../../../boost/log/attributes/fallback_policy_fwd.hpp" target="_top">boost/log/attributes/fallback_policy_fwd.hpp</a>></h4></div></div></div>
295 <p>Andrey Semashev </p>
300 The header contains forward declaration of fallback policies when attribute value visitation or extraction fails. </p>
302 <div class="section">
303 <div class="titlepage"><div><div><h4 class="title">
304 <a name="header.boost.log.attributes.function_hpp"></a>Header <<a href="../../../../boost/log/attributes/function.hpp" target="_top">boost/log/attributes/function.hpp</a>></h4></div></div></div>
305 <p>Andrey Semashev </p>
310 The header contains implementation of an attribute that calls a third-party function on value acquisition. </p>
311 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
312 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
313 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
314 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> R<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/attributes/function.html" title="Class template function">function</a><span class="special">;</span>
315 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span>
316 <a class="link" href="boost/log/attributes/function.html" title="Class template function">function</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">remove_cv</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">remove_reference</span><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">result_of</span><span class="special"><</span> <span class="identifier">T</span><span class="special">(</span><span class="special">)</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="special">></span>
317 <a class="link" href="boost/log/attributes/make_function.html" title="Function template make_function"><span class="identifier">make_function</span></a><span class="special">(</span><span class="identifier">T</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
318 <span class="special">}</span>
319 <span class="special">}</span>
320 <span class="special">}</span></pre>
322 <div class="section">
323 <div class="titlepage"><div><div><h4 class="title">
324 <a name="header.boost.log.attributes.mutable_constant_hpp"></a>Header <<a href="../../../../boost/log/attributes/mutable_constant.hpp" target="_top">boost/log/attributes/mutable_constant.hpp</a>></h4></div></div></div>
325 <p>Andrey Semashev </p>
330 The header contains implementation of a mutable constant attribute. </p>
331 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
332 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
333 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
334 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> MutexT <span class="special">=</span> <span class="keyword">void</span><span class="special">,</span>
335 <span class="keyword">typename</span> ScopedWriteLockT <span class="special">=</span> <span class="keyword">auto</span><span class="special">,</span>
336 <span class="keyword">typename</span> ScopedReadLockT <span class="special">=</span> <span class="keyword">auto</span><span class="special">></span>
337 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/mutable_constant.html" title="Class template mutable_constant">mutable_constant</a><span class="special">;</span>
339 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/attributes/mutable_consta_idp43823680.html" title="Class template mutable_constant<T, void, void, void>">mutable_constant</a><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="keyword">void</span><span class="special">,</span> <span class="keyword">void</span><span class="special">,</span> <span class="keyword">void</span><span class="special">></span><span class="special">;</span>
340 <span class="special">}</span>
341 <span class="special">}</span>
342 <span class="special">}</span></pre>
344 <div class="section">
345 <div class="titlepage"><div><div><h4 class="title">
346 <a name="header.boost.log.attributes.named_scope_hpp"></a>Header <<a href="../../../../boost/log/attributes/named_scope.hpp" target="_top">boost/log/attributes/named_scope.hpp</a>></h4></div></div></div>
347 <p>Andrey Semashev </p>
352 The header contains implementation of named scope container and an attribute that allows to put the named scope to log. A number of convenience macros are also provided. </p>
353 <pre class="synopsis">
355 <a class="link" href="BOOST_LOG_NAMED_SCOPE.html" title="Macro BOOST_LOG_NAMED_SCOPE">BOOST_LOG_NAMED_SCOPE</a>(name)
356 <a class="link" href="BOOST_LOG_FUNCTION.html" title="Macro BOOST_LOG_FUNCTION">BOOST_LOG_FUNCTION</a>()
357 <a class="link" href="BOOST_LOG_FUNC.html" title="Macro BOOST_LOG_FUNC">BOOST_LOG_FUNC</a>()</pre>
358 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
359 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
360 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
361 <span class="keyword">struct</span> <a class="link" href="boost/log/attributes/named_scope_entry.html" title="Struct named_scope_entry">named_scope_entry</a><span class="special">;</span>
363 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/named_scope_list.html" title="Class named_scope_list">named_scope_list</a><span class="special">;</span>
364 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/named_scope.html" title="Class named_scope">named_scope</a><span class="special">;</span>
365 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> CharT<span class="special">,</span> <span class="keyword">typename</span> TraitsT<span class="special">></span>
366 <span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">TraitsT</span> <span class="special">></span> <span class="special">&</span>
367 <a class="link" href="boost/log/attributes/operator_idp43949024.html" title="Function template operator<<"><span class="keyword">operator</span><span class="special"><<</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_ostream</span><span class="special"><</span> <span class="identifier">CharT</span><span class="special">,</span> <span class="identifier">TraitsT</span> <span class="special">></span> <span class="special">&</span><span class="special">,</span>
368 <a class="link" href="boost/log/attributes/named_scope_list.html" title="Class named_scope_list">named_scope_list</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
369 <span class="special">}</span>
370 <span class="special">}</span>
371 <span class="special">}</span></pre>
373 <div class="section">
374 <div class="titlepage"><div><div><h4 class="title">
375 <a name="header.boost.log.attributes.scoped_attribute_hpp"></a>Header <<a href="../../../../boost/log/attributes/scoped_attribute.hpp" target="_top">boost/log/attributes/scoped_attribute.hpp</a>></h4></div></div></div>
376 <p>Andrey Semashev </p>
381 The header contains definition of facilities to define scoped attributes. </p>
382 <pre class="synopsis">
384 <a class="link" href="BOOST_LOG_SCOPED_LOGGER_ATTR.html" title="Macro BOOST_LOG_SCOPED_LOGGER_ATTR">BOOST_LOG_SCOPED_LOGGER_ATTR</a>(logger, attr_name, attr)
385 <a class="link" href="BOOST_LOG_SCOPED_LOGGER_TAG.html" title="Macro BOOST_LOG_SCOPED_LOGGER_TAG">BOOST_LOG_SCOPED_LOGGER_TAG</a>(logger, attr_name, attr_value)
386 <a class="link" href="BOOST_LOG_SCOPED_THREAD_ATTR.html" title="Macro BOOST_LOG_SCOPED_THREAD_ATTR">BOOST_LOG_SCOPED_THREAD_ATTR</a>(attr_name, attr)
387 <a class="link" href="BOOST_LOG_SCOPED_THREAD_TAG.html" title="Macro BOOST_LOG_SCOPED_THREAD_TAG">BOOST_LOG_SCOPED_THREAD_TAG</a>(attr_name, attr_value)</pre>
388 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
389 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
390 <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.log.scoped_attribute"></a><span class="identifier">scoped_attribute</span><span class="special">;</span> <span class="comment">// Scoped attribute guard type. </span>
391 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> LoggerT<span class="special">></span>
392 <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/add_scoped_log_idp43964656.html" title="Function template add_scoped_logger_attribute"><span class="identifier">add_scoped_logger_attribute</span></a><span class="special">(</span><span class="identifier">LoggerT</span> <span class="special">&</span><span class="special">,</span>
393 <a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
394 <a class="link" href="boost/log/attribute.html" title="Class attribute">attribute</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
395 <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="boost/log/add_scoped_thr_idp43972048.html" title="Function add_scoped_thread_attribute"><span class="identifier">add_scoped_thread_attribute</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
396 <a class="link" href="boost/log/attribute.html" title="Class attribute">attribute</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
397 <span class="special">}</span>
398 <span class="special">}</span></pre>
400 <div class="section">
401 <div class="titlepage"><div><div><h4 class="title">
402 <a name="header.boost.log.attributes.time_traits_hpp"></a>Header <<a href="../../../../boost/log/attributes/time_traits.hpp" target="_top">boost/log/attributes/time_traits.hpp</a>></h4></div></div></div>
403 <p>Andrey Semashev </p>
408 The header contains implementation of time traits that are used in various parts of the library to acquire current time. </p>
409 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
410 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
411 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
412 <span class="keyword">struct</span> <a class="link" href="boost/log/attributes/basic_time_traits.html" title="Struct basic_time_traits">basic_time_traits</a><span class="special">;</span>
413 <span class="keyword">struct</span> <a class="link" href="boost/log/attributes/utc_time_traits.html" title="Struct utc_time_traits">utc_time_traits</a><span class="special">;</span>
414 <span class="keyword">struct</span> <a class="link" href="boost/log/attributes/local_time_traits.html" title="Struct local_time_traits">local_time_traits</a><span class="special">;</span>
415 <span class="special">}</span>
416 <span class="special">}</span>
417 <span class="special">}</span></pre>
419 <div class="section">
420 <div class="titlepage"><div><div><h4 class="title">
421 <a name="header.boost.log.attributes.timer_hpp"></a>Header <<a href="../../../../boost/log/attributes/timer.hpp" target="_top">boost/log/attributes/timer.hpp</a>></h4></div></div></div>
422 <p>Andrey Semashev </p>
427 The header contains implementation of a stop watch attribute. </p>
428 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
429 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
430 <span class="keyword">namespace</span> <span class="identifier">attributes</span> <span class="special">{</span>
431 <span class="keyword">class</span> <a class="link" href="boost/log/attributes/timer.html" title="Class timer">timer</a><span class="special">;</span>
432 <span class="special">}</span>
433 <span class="special">}</span>
434 <span class="special">}</span></pre>
436 <div class="section">
437 <div class="titlepage"><div><div><h4 class="title">
438 <a name="header.boost.log.attributes.value_extraction_hpp"></a>Header <<a href="../../../../boost/log/attributes/value_extraction.hpp" target="_top">boost/log/attributes/value_extraction.hpp</a>></h4></div></div></div>
439 <p>Andrey Semashev </p>
444 The header contains implementation of tools for extracting an attribute value from the view. </p>
445 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
446 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
447 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">></span>
448 <span class="keyword">class</span> <a class="link" href="boost/log/value_extractor.html" title="Class template value_extractor">value_extractor</a><span class="special">;</span>
449 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
450 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
451 <a class="link" href="boost/log/extract_idp44073872.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
452 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
453 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
454 <a class="link" href="boost/log/extract_idp44081360.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
455 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
456 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
457 <a class="link" href="boost/log/extract_idp44088576.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
458 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
459 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <a class="link" href="boost/log/extract_idp44095792.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
460 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
461 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
462 <a class="link" href="boost/log/extract_or_thr_idp44101792.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
463 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
464 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
465 <a class="link" href="boost/log/extract_or_thr_idp44110016.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
466 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
467 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
468 <a class="link" href="boost/log/extract_or_thr_idp44117968.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
469 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">></span>
470 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
471 <a class="link" href="boost/log/extract_or_thr_idp44125920.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
472 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">,</span> <span class="keyword">typename</span> DefaultT<span class="special">></span>
473 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
474 <a class="link" href="boost/log/extract_or_def_idp44132656.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
475 <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
476 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">,</span> <span class="keyword">typename</span> DefaultT<span class="special">></span>
477 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
478 <a class="link" href="boost/log/extract_or_def_idp44141968.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
479 <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
480 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">,</span> <span class="keyword">typename</span> DefaultT<span class="special">></span>
481 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
482 <a class="link" href="boost/log/extract_or_def_idp44151008.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
483 <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
484 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT <span class="special">=</span> <span class="keyword">void</span><span class="special">,</span> <span class="keyword">typename</span> DefaultT<span class="special">></span>
485 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">TagT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
486 <a class="link" href="boost/log/extract_or_def_idp44160048.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
487 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">></span>
488 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
489 <a class="link" href="boost/log/extract_idp44167872.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
490 <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
491 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">></span>
492 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
493 <a class="link" href="boost/log/extract_idp44175168.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
494 <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
495 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">></span>
496 <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">result_of::extract</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
497 <a class="link" href="boost/log/extract_idp44182192.html" title="Function template extract"><span class="identifier">extract</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
498 <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
499 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">></span>
500 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
501 <a class="link" href="boost/log/extract_or_thr_idp44189216.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
502 <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
503 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">></span>
504 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
505 <a class="link" href="boost/log/extract_or_thr_idp44197248.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
506 <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
507 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">></span>
508 <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">result_of::extract_or_throw</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
509 <a class="link" href="boost/log/extract_or_thr_idp44205008.html" title="Function template extract_or_throw"><span class="identifier">extract_or_throw</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
510 <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
511 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">,</span>
512 <span class="keyword">typename</span> DefaultT<span class="special">></span>
513 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
514 <a class="link" href="boost/log/extract_or_def_idp44212768.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
515 <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
516 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">,</span>
517 <span class="keyword">typename</span> DefaultT<span class="special">></span>
518 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
519 <a class="link" href="boost/log/extract_or_def_idp44221888.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
520 <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
521 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">,</span>
522 <span class="keyword">typename</span> DefaultT<span class="special">></span>
523 <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">result_of::extract_or_default</a><span class="special"><</span> <span class="keyword">typename</span> <span class="identifier">DescriptorT</span><span class="special">::</span><span class="identifier">value_type</span><span class="special">,</span> <span class="identifier">DefaultT</span><span class="special">,</span> <span class="identifier">DescriptorT</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span>
524 <a class="link" href="boost/log/extract_or_def_idp44230736.html" title="Function template extract_or_default"><span class="identifier">extract_or_default</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
525 <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">DefaultT</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span>
526 <span class="keyword">namespace</span> <span class="identifier">result_of</span> <span class="special">{</span>
527 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> DefaultT<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">></span>
528 <span class="keyword">struct</span> <a class="link" href="boost/log/result_of/extract_or_default.html" title="Struct template extract_or_default">extract_or_default</a><span class="special">;</span>
529 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">></span> <span class="keyword">struct</span> <a class="link" href="boost/log/result_of/extract_or_throw.html" title="Struct template extract_or_throw">extract_or_throw</a><span class="special">;</span>
530 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> TagT<span class="special">></span> <span class="keyword">struct</span> <a class="link" href="boost/log/result_of/extract.html" title="Struct template extract">extract</a><span class="special">;</span>
531 <span class="special">}</span>
532 <span class="special">}</span>
533 <span class="special">}</span></pre>
535 <div class="section">
536 <div class="titlepage"><div><div><h4 class="title">
537 <a name="header.boost.log.attributes.value_extraction_fwd_hpp"></a>Header <<a href="../../../../boost/log/attributes/value_extraction_fwd.hpp" target="_top">boost/log/attributes/value_extraction_fwd.hpp</a>></h4></div></div></div>
538 <p>Andrey Semashev </p>
543 The header contains forward declaration of tools for extracting attribute values from the view. </p>
545 <div class="section">
546 <div class="titlepage"><div><div><h4 class="title">
547 <a name="header.boost.log.attributes.value_visitation_hpp"></a>Header <<a href="../../../../boost/log/attributes/value_visitation.hpp" target="_top">boost/log/attributes/value_visitation.hpp</a>></h4></div></div></div>
548 <p>Andrey Semashev </p>
553 The header contains implementation of convenience tools to apply visitors to an attribute value in the view. </p>
554 <pre class="synopsis"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
555 <span class="keyword">namespace</span> <span class="identifier">log</span> <span class="special">{</span>
556 <span class="keyword">class</span> <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a><span class="special">;</span>
557 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> FallbackPolicyT<span class="special">></span> <span class="keyword">class</span> <a class="link" href="boost/log/value_visitor_invoker.html" title="Class template value_visitor_invoker">value_visitor_invoker</a><span class="special">;</span>
558 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> VisitorT<span class="special">></span>
559 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a>
560 <a class="link" href="boost/log/visit_idp44307376.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
561 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> VisitorT<span class="special">></span>
562 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a>
563 <a class="link" href="boost/log/visit_idp44315088.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
564 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> VisitorT<span class="special">></span>
565 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a>
566 <a class="link" href="boost/log/visit_idp44322528.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
567 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> VisitorT<span class="special">></span>
568 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a> <a class="link" href="boost/log/visit_idp44329968.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><a class="link" href="boost/log/attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
569 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">,</span>
570 <span class="keyword">typename</span> VisitorT<span class="special">></span>
571 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a>
572 <a class="link" href="boost/log/visit_idp44336192.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
573 <a class="link" href="boost/log/attribute_value_set.html" title="Class attribute_value_set">attribute_value_set</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
574 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">,</span>
575 <span class="keyword">typename</span> VisitorT<span class="special">></span>
576 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a>
577 <a class="link" href="boost/log/visit_idp44344528.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
578 <span class="identifier">record</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
579 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> DescriptorT<span class="special">,</span> <span class="keyword">template</span><span class="special"><</span> <span class="keyword">typename</span> <span class="special">></span> <span class="keyword">class</span> ActorT<span class="special">,</span>
580 <span class="keyword">typename</span> VisitorT<span class="special">></span>
581 <a class="link" href="boost/log/visitation_result.html" title="Class visitation_result">visitation_result</a>
582 <a class="link" href="boost/log/visit_idp44352592.html" title="Function template visit"><span class="identifier">visit</span></a><span class="special">(</span><span class="identifier">expressions</span><span class="special">::</span><span class="identifier">attribute_keyword</span><span class="special"><</span> <span class="identifier">DescriptorT</span><span class="special">,</span> <span class="identifier">ActorT</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span>
583 <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">VisitorT</span><span class="special">)</span><span class="special">;</span>
584 <span class="special">}</span>
585 <span class="special">}</span></pre>
587 <div class="section">
588 <div class="titlepage"><div><div><h4 class="title">
589 <a name="header.boost.log.attributes.value_visitation_fwd_hpp"></a>Header <<a href="../../../../boost/log/attributes/value_visitation_fwd.hpp" target="_top">boost/log/attributes/value_visitation_fwd.hpp</a>></h4></div></div></div>
590 <p>Andrey Semashev </p>
595 The header contains forward declaration of convenience tools to apply visitors to an attribute value in the view. </p>
598 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
599 <td align="left"></td>
600 <td align="right"><div class="copyright-footer">Copyright © 2007-2016 Andrey Semashev<p>
601 Distributed under the Boost Software License, Version 1.0. (See accompanying
602 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>).
607 <div class="spirit-nav">
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